UNITED STATES
 SECURITIES AND EXCHANGE COMMISSION
 Washington, D.C. 20549
 FORM 10-K

 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For the fiscal year ended December 31, 2024

 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For the transition period from __________to__________
 Commission file number 0-22705
 (Exact name of registrant as specified in its charter)

 Delaware
 33-0525145

 (State or other jurisdiction of
incorporation or organization)
 (I.R.S. Employer
Identification No.)

 6027 Edgewood Bend Court,
 San Diego,
 California
 92130

 (Address of principal executive offices)
 (Zip Code)

 ( 858) 617-7600
 (Registrant's telephone number, including area code)
 Securities registered pursuant to Section 12(b) of the Act:

 Common Stock, $0.001 par value
 NBIX
 Nasdaq Global Select Market

 (Title of each class)
 (Trading Symbol)
 (Name of each exchange on which registered)

 Securities registered pursuant to Section 12(g) of the Act:
 None
 (Title of class)
 Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes No
 Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes No
 Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes No
 Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes No
 Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer", "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

 Large accelerated filer

 Accelerated filer

 Non-accelerated filer

 Smaller reporting company

 Emerging growth company

 If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
 Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. Yes No
 If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements.
 Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to § 240.10D-1(b).
 Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes No
 The aggregate market value of registrant's common stock held by non-affiliates of the registrant, computed by reference to the closing price as of the last business day of the registrant's most recently completed second fiscal quarter, June 30, 2024, was $ 10.5 billion.
 As of February 5, 2025, 99,703,527 shares of the registrant's common stock were outstanding.
 DOCUMENTS INCORPORATED BY REFERENCE
 Portions of the registrant's definitive proxy statement relating to the registrant's annual meeting of stockholders to be filed pursuant to Regulation 14A within 120 days following the end of the registrant's fiscal year ended December 31, 2024 are incorporated by reference into Part III of this Form 10-K.

 Page

 Item 1.
 Business

 Item 1A.
 Risk Factors

 Item 1B.
 Unresolved Staff Comments

 Item 1C.

 Cybersecurity

 Item 2.
 Properties

 Item 3.
 Legal Proceedings

 Item 4.
 Mine Safety Disclosures

 Item 5.
 Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

 Item 7.
 Management's Discussion and Analysis of Financial Condition and Results of Operations

 Item 7A.
 Quantitative and Qualitative Disclosures about Market Risk

 Item 8.
 Financial Statements and Supplementary Data

 Item 9.
 Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

 Item 9A.
 Controls and Procedures

 Item 9B.
 Other Information

 Item 9C.
 Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

 Item 10.
 Directors, Executive Officers and Corporate Governance

 Item 11.
 Executive Compensation

 Item 12.
 Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

 Item 13.
 Certain Relationships and Related Transactions, and Director Independence

 Item 14.
 Principal Accounting Fees and Services

 Item 15.
 Exhibits, Financial Statement Schedules

 NEUROCRINE, the NEUROCRINE BIOSCIENCES Logo, YOU DESERVE BRAVE SCIENCE, INGREZZA, the INGREZZA Logo, CRENESSITY, the CRENESSITY Logo, and other Neurocrine Biosciences trademarks are the property of Neurocrine Biosciences, Inc. ALKINDI, EFMODY, and other Neurocrine UK Limited trademarks are the property of Neurocrine UK Limited, a Neurocrine Biosciences company. Any other brand names or trademarks appearing in this Annual Report that are not the property of Neurocrine Biosciences, Inc. are the property of their respective holders.

 Forward-Looking Statements
 This Annual Report on Form 10-K and the information incorporated herein by reference contain forward-looking statements that involve a number of risks and uncertainties. Although our forward-looking statements reflect the good faith judgment of our management, these statements can only be based on facts and factors currently known by us. Consequently, these forward-looking statements are inherently subject to risks and uncertainties, and actual results and outcomes may differ materially from results and outcomes discussed in the forward-looking statements.
 Forward-looking statements can be identified by the use of forward-looking words such as "believes," "expects," "hopes," "may," "will," "plan," "intends," "estimates," "could," "should," "would," "continue," "seeks," "pro forma," or "anticipates," or other similar words (including their use in the negative), or by discussions of future matters such as the development of new products, technology enhancements, possible changes in legislation and other statements that are not historical. These statements include but are not limited to statements under the captions "Risk Factors," "Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Business," as well as other sections in this report. You should be aware that the occurrence of any of the events discussed under the heading in Part I titled "Item 1A. Risk Factors" and elsewhere in this report could substantially harm our business, results of operations and financial condition and that if any of these events occurs, the trading price of our common stock could decline and you could lose all or a part of the value of your shares of our common stock.
 The cautionary statements made in this report are intended to be applicable to all related forward-looking statements wherever they may appear in this report. We urge you not to place undue reliance on these forward-looking statements, which speak only as of the date of this report. Except as required by law, we assume no obligation to update our forward-looking statements, even if new information becomes available in the future.

 Item 1. Business

 Overview
 Neurocrine Biosciences is a neuroscience-focused, biopharmaceutical company with a simple purpose: to relieve suffering for people with great needs, but few options. We are dedicated to discovering and developing life-changing treatments for patients with under-addressed neuropsychiatric, neurological, and neuroendocrine disorders.
 Our portfolio of products includes U.S. Food and Drug Administration (FDA) approved treatments for tardive dyskinesia, chorea associated with Huntington's disease, classic congenital adrenal hyperplasia (CAH), and endometriosis and uterine fibroids in collaboration with AbbVie Inc. (AbbVie). In addition, we have a diversified portfolio of multiple compounds in mid- to late-phase development across our core therapeutic areas and an expanding early-phase pipeline that includes a range of modalities including small molecules, peptides, proteins, antibodies, and gene therapy.
 We launched INGREZZA (valbenazine) in the U.S. as the first FDA-approved drug for the treatment of tardive dyskinesia in May 2017 and for the treatment of chorea associated with Huntington's disease in August 2023 and launched CRENESSITYTM (crinecerfont) in the U.S. as a first-in-class FDA-approved treatment of CAH in December 2024.
 We estimate that tardive dyskinesia affects approximately 800,000 people in the U.S., that approximately 90% of the 40,000 people in the U.S. affected by Huntington's disease will develop chorea, and that CAH affects approximately 30,000 people in the U.S. Key elements of our commercial strategy include maximizing the opportunities in INGREZZA and CRENESSITY through consistent and effective commercial execution, continued development of valbenazine as the best-in-class treatment for new patient populations, and to lead the evolving understanding of VMAT2 biology and its role in disease. INGREZZA net product sales totaled $2.3 billion for 2024, $1.8 billion for 2023, and $1.4 billion for 2022 and accounted for substantially all of our total net product sales during each of these years.
 Our partner Mitsubishi Tanabe Pharma Corporation (MTPC) launched DYSVAL (valbenazine) in Japan for the treatment of tardive dyskinesia in June 2022 and subsequently in other select Asian markets, where it is marketed as REMLEAS (valbenazine). We receive royalties at tiered percentage rates on MTPC net sales of valbenazine.
 Our partner AbbVie launched ORILISSA (elagolix tablets) in the U.S. for the treatment of endometriosis in August 2018 and ORIAHNN (elagolix, estradiol and norethindrone acetate capsules and elagolix capsules) in the U.S. for the treatment of heavy menstrual bleeding due to uterine fibroids in June 2020. We receive royalties at tiered percentage rates on AbbVie net sales of elagolix.

 Commercial Products

 Product
 Indication
 Major Markets

 Tardive Dyskinesia
 U.S., Japan, Select Asian Markets (1)

 Chorea Associated with Huntington's Disease

 Classic Congenital Adrenal Hyperplasia

 U.S.

 Endometriosis
 U.S. (4)

 Uterine Fibroids

 U.S. (4)

 Adrenal Insufficiency

 U.S., United Kingdom, EU4 (2) (3)

 Classic Congenital Adrenal Hyperplasia

 United Kingdom, EU4 (3)

 (1) INGREZZA is marketed as DYSVAL (valbenazine) in Japan and REMLEAS (valbenazine) in other select Asian markets, where MTPC retains commercialization rights.
 (2) ALKINDI is marketed as ALKINDI SPRINKLE (hydrocortisone) in the U.S., where Eton Pharmaceuticals, Inc. retains commercialization rights.
 (3) The EU4 market is made up of the following countries: Germany, France, Italy, and Spain.
 (4) AbbVie retains global commercialization rights to elagolix.

 Commercial Operations
 Our specialty sales force consists of approximately 600 experienced sales professionals located in the U.S. and is divided into four dedicated sales teams focused on psychiatry, neurology, long-term care, and rare diseases.
 We sell INGREZZA in the U.S. principally to a limited network of specialty pharmacy providers, wholesale distributors, and specialty distributors. In addition, we sell CRENESSITY in the U.S. to a specialty pharmacy provider.

 Manufacturing and Supply
 We currently rely on, and intend to continue to rely on, third-party manufacturers for the production of INGREZZA, CRENESSITY, and our product candidates. Raw materials, active pharmaceutical ingredients (API), and other supplies required for the production of INGREZZA, CRENESSITY, and our product candidates are sourced from various third-party manufacturers and suppliers in quantities adequate to meet our needs. Continuing adequate supply of such raw materials and API is assured through long-term commercial supply and manufacturing agreements with multiple manufacturers and a continued focus on the expansion and diversification of our third-party manufacturing relationships.
 We believe our outsourced manufacturing strategy enables us to direct our financial resources to the maximization of our opportunity with INGREZZA and CRENESSITY, investment in our internal research and development programs, and expansion of our clinical pipeline through business development opportunities.
 Our third-party manufacturers, suppliers and service providers may be subject to routine current Good Manufacturing Practice (cGMP) inspections by the FDA or comparable agencies in other jurisdictions. We depend on our third-party partners and our quality system oversight of them for continued compliance with cGMP requirements and applicable foreign standards.

 Clinical Development Programs
 The following chart summarizes our clinical development programs

 Small Molecule
 * Initiating Phase 1 clinical study in the first quarter of 2025
 Neuropsychiatry
 Valbenazine
 Valbenazine is a highly selective VMAT2 inhibitor. VMAT2 is a protein concentrated in the human brain that is essential for the transmission of nerve impulses between neurons. VMAT2 is primarily responsible for packaging and transporting monoamines (dopamine, norepinephrine, serotonin, and histamine) in neurons. Specifically, dopamine enables neurotransmission among nerve cells that are involved in voluntary and involuntary motor control.
 We have ongoing the JourneyTM study, a Phase 3 randomized, double-blind, placebo-controlled clinical study to evaluate the efficacy, safety, and tolerability of valbenazine when administered orally once daily as adjunctive treatment in adolescents and adults with schizophrenia who have had an inadequate response to antipsychotics. Schizophrenia is a serious and complex syndrome with heterogeneous symptoms. The World Health Organization estimates that the disorder impacts more than 20 million people worldwide. Annual associated costs for schizophrenia are estimated to be more than $150 billion in the U.S. As one of the leading causes of disability worldwide, it often results in significant emotional and functional burden for those who experience symptoms, as well as their family and friends. This chronic and disabling mental health condition is thought to result from a complex interplay of genetic and environmental risk factors. Traditional treatment approaches for schizophrenia rely on the use of antipsychotic medications that can lead to considerable short- and long-term health impacts.
 Osavampator (formerly NBI-1065845)
 Osavampator is a potential first-in-class alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) positive allosteric modulator (PAM) in development for patients with inadequate response to treatment of major depressive disorder. We originally acquired the global rights to osavampator in June 2020 as a 50:50 profit-share product from Takeda. In January 2025, we agreed with Takeda to convert from sharing operating profits and losses with respect to the development and commercialization of osavampator to a royalty-bearing license. Pursuant to the license, we have exclusive rights to develop and commercialize osavampator for all indications in all territories worldwide, excluding Japan.

 In April 2024, we announced positive top-line data from the Phase 2 SAVITRI study of osavampator in adults with major depressive disorder. The Phase 2 dose-finding study met its primary and key secondary endpoints, demonstrating that once-daily, oral administration of NBI-1065845 produced a statistically significant change from baseline in the Montgomery- sberg Depression Rating Scale (MADRS) total score at both Day 28 (primary, p=0.0159) and Day 56 (secondary, p=0.0016).
 We have an ongoing Phase 3, randomized, double-blind, placebo-controlled clinical study to evaluate the efficacy and safety of osavampator in adults with major depressive disorder. Major depressive disorder is a mental health disorder characterized by a persistently depressed mood, loss of interest, lack of enjoyment in daily activities, poor concentration, and decreased energy. Major depressive disorder is one of the leading causes of disability. Approximately 21 million people in the U.S. live with major depressive disorder. It is estimated that roughly one-third of people living with major depressive disorder do not respond to available antidepressants.
 NBI-1117568
 NBI-1117568 is a first-in-class, orally active, highly selective investigational M4 agonist in development as a potential treatment for schizophrenia. As a selective M4 orthosteric agonist, NBI-1117568 offers the potential for a novel mechanism with an improved safety profile without the need of combination therapy to minimize off-target pharmacology-related side effects, while also not being dependent on the presence of acetylcholine for efficacy. Muscarinic receptors are central to brain function and validated as drug targets in psychosis and cognitive disorders. We acquired the global rights to NBI-1117568, excluding in Japan, from Nxera in 2021.
 In August 2024, we announced positive top-line data from the Phase 2 clinical study of NBI-1117568 in adults with schizophrenia. The Phase 2 dose-finding study met its primary endpoint for the once-daily 20 mg dose, demonstrating a clinically meaningful and statistically significant reduction from baseline in the Positive and Negative Syndrome Scale (PANSS) total score at Week 6 (p=0.011 and effect size of 0.61). The once-daily 20 mg dose also demonstrated statistically significant improvement for additional endpoints, including improvement in the Clinical Global Impression of Severity (CGI-S) scale, Marder Factor Score – Positive Symptom Change, and Marder Factor Score - Negative Symptom Change. We expect to advance NBI-1117568 into Phase 3 development in the first half of 2025.
 NBI-1070770
 NBI-1070770 is a novel, selective, and orally active, negative allosteric modulator (NAM) of the NR2B subunit-containing N-methyl-D-aspartate (NMDA NR2B) receptor in development as a potential treatment for major depressive disorder. We acquired the global rights to NBI-1070770 from Takeda in 2020.
 We have an ongoing Phase 2, multi-center, randomized, double-blind, placebo-controlled clinical study to evaluate the efficacy, safety, and tolerability of NBI-1070770 in adults with major depressive disorder.
 Other Early-Stage Neuropsychiatry Programs
 We have ongoing Phase 1 first-in-human clinical studies to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of investigational compounds NBI-1117570, NBI-1117567, NBI-1117569, and NBI-1065890 in healthy adult participants.
 NBI-1117570, NBI-1117567 (M1 preferring), and NBI-1117569 (M4 preferring) are investigational, oral, muscarinic M1/M4 agonists being developed for the potential treatment of certain neuropsychiatric and neurological conditions. We acquired the global rights NBI-1117570, NBI-1117567, and NBI-1117569 from Nxera in 2021.
 NBI-1065890 is an investigational, oral, selective VMAT2 inhibitor for the potential treatment of certain neuropsychiatric and neurological conditions. NBI-1065890 was discovered and is being developed internally at Neurocrine Biosciences.

 Neurology
 Valbenazine
 We have an ongoing Phase 3 randomized, double-blind, placebo-controlled clinical study to evaluate the efficacy, safety, and tolerability of valbenazine for the treatment of dyskinetic cerebral palsy in pediatrics and adults. Dyskinetic cerebral palsy is a non-progressive, permanent disorder marked by involuntary movement and is a result of damage to the fetal or infant brain's basal ganglia. The basal ganglia are responsible for submitting messages to the body to help coordinate and control movements. When damaged, voluntary movements are compromised, resulting in involuntary and abnormal movements. It affects development and movement and has long term effects on patients' quality of life. The long-term outlook for patients with dyskinetic cerebral palsy will depend upon the severity of the brain damage and how well the treatment works. Dyskinetic cerebral palsy affects up to 15% of the estimated 500,000 to 1 million people affected by cerebral palsy in the U.S.
 NBI-1076986
 NBI-1076986 is an investigational, oral, muscarinic M4 selective acetylcholine antagonist for the potential treatment of certain movement disorders. NBI-1076986 was discovered and is being developed internally at Neurocrine Biosciences.
 We have an ongoing Phase 1 first-in-human clinical study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of investigational compound NBI-1076986 in healthy adult participants.

 Intellectual Property
 We actively seek to protect our products, product candidates, and related inventions and improvements that we consider important to our business. We own a portfolio of U.S. and ex-U.S. patents and patent applications, and have also licensed rights to a number of U.S. and ex-U.S. patents and patent applications. Our owned and licensed patents and patent applications cover or relate to our products and product candidates, including certain formulations, uses to treat particular conditions, methods of administration, drug delivery technologies and delivery profiles, and methods of manufacturing.
 Below is a description of the U.S. and ex-U.S. patents to INGREZZA and CRENESSITY:
 • INGREZZA, our highly selective VMAT2 inhibitor approved in the U.S. for the treatment of tardive dyskinesia and of chorea associated with Huntington's disease, is covered by 22 issued, FDA Orange Book-listed U.S. patents which are set to expire between 2027 and 2040. Patent term extension corresponding to regulatory approval delay of 552 days has been received for U.S. Patent No. 8,039,627, which now expires in 2031 and covers valbenazine, the active pharmaceutical ingredient contained in INGREZZA. In 2023, we entered into settlement agreements resolving all patent litigation brought by us against the companies that filed ANDAs seeking approval to market generic versions of INGREZZA, and all cases have been dismissed. Pursuant to the terms of the respective settlement agreements, such companies have the right to sell generic versions of INGREZZA in the U.S. beginning March 1, 2038, or earlier under certain circumstances.
 • CRENESSITY, a CRF1 receptor antagonist approved in the U.S. for the treatment of CAH in adults and children, is covered by U.S. patents among other patents set to expire between 2035 and 2041 (not including any potential patent term extensions), and pending patent applications, which, if issued, could expire at least as late as 2045.
 We also own, or have licensed rights to, patents covering our other products and earlier stage product candidates. In addition to the potential patent term extensions referenced above, the products and product candidates in our pipeline may be subject to additional terms of exclusivity that we may obtain by future patent issuances.

 Separately, the U.S., the EU, and Japan each provide data and marketing exclusivity for new medicinal compounds. If this protection is available, no competitor may use the original applicant's data as the basis of a generic marketing application during the period of data and marketing exclusivity, which is measured from the date of marketing approval by the FDA or corresponding foreign regulatory authority. This period of exclusivity is generally five years in the U.S., six years in Japan and eight years in the EU, with marketing exclusivity lasting an additional two years in the EU, except that for biologics, the period of exclusivity in the U.S. is 12 years under the Biologics Price Competition and Innovation Act. In addition, if granted orphan drug designation, certain of our product candidates, including, for example, crinecerfont, may also be eligible for marketing exclusivity in the U.S. for seven years and EU for 10 years.
 Refer to Part I, Item 1A. Risk Factors for a discussion of the challenges we may face in obtaining or maintaining patent and/or trade secret protection and Note 15 to the consolidated financial statements for a description of our legal proceedings related to intellectual property matters.

 Competition
 The biotechnology and pharmaceutical industries are subject to rapid and intense technological change. We face, and will continue to face, competition in the development and marketing of our products and product candidates from academic institutions, government agencies, research institutions and biotechnology and pharmaceutical companies.
 Competition may also arise from, among other things, other drug development technologies, methods of preventing or reducing the incidence of disease, including vaccines, and new small molecule or other classes of therapeutic agents. Such developments by others (including the development of generic equivalents) may render our product candidates or technologies obsolete or noncompetitive.
 • INGREZZA competes with AUSTEDO (deutetrabenazine), marketed by Teva Pharmaceuticals Industries, for the treatment of tardive dyskinesia in adults and chorea associated with Huntington's disease. A once-daily dosing of AUSTEDO (AUSTEDO XR) was introduced in February 2023. Additionally, there are a number of commercially available medicines used to treat tardive dyskinesia off-label, such as XENAZINE (tetrabenazine) and generic equivalents, and various antipsychotic medications (e.g., clozapine), anticholinergics, benzodiazepines (off-label), and botulinum toxin. In addition, there are several programs in clinical development by other companies targeting Huntington's disease.
 • CRENESSITY competes with high dose corticosteroid monotherapy which is the current standard of care to both correct the endogenous cortisol deficiency as well as reduce the excessive adrenocorticotropic hormone levels for patients with CAH. In the U.S. alone, there are more than two dozen companies manufacturing steroid-based products. In addition, there are several programs in clinical development by other companies targeting CAH.
 • Our investigational treatments for potential use in schizophrenia and depression may in the future compete with several development-stage programs being pursued by other companies. In addition, there are a number of different anti-psychotic and anti-depressant medications currently used in these patient populations.
 • Our investigational treatments for potential use in neurology, neuroendocrinology and neuropsychiatry may in the future compete with numerous approved products and development-stage programs being pursued by several other companies.

 Collaboration and License Agreements
 Refer to Note 2 to the consolidated financial statements for more information on our significant collaboration and license agreements.

 Government Regulation
 Our business activities are subject to extensive regulation by the U.S. and other countries. Regulation by government authorities in the U.S. and foreign countries is a significant factor in the development, manufacture, distribution, tracking, marketing and sale of our proposed products and in our ongoing research and product development activities. All of our products in development will require regulatory approval by government agencies prior to commercialization. The process of obtaining these approvals and the subsequent compliance with appropriate federal and state statutes and regulations require the expenditure of substantial time and financial resources.

 In addition, federal and state healthcare laws, and equivalent supranational and foreign laws, restrict business practices in the pharmaceutical industry. These laws include, without limitation, federal, state and foreign fraud and abuse laws, false claims laws, data privacy and security laws, as well as transparency laws and industry codes of conduct regarding payments or other items of value provided to healthcare providers. We have a comprehensive compliance program designed to ensure our business practices remain compliant.
 The U.S. federal Anti-Kickback Statute and equivalent foreign laws makes it illegal for any person or entity to knowingly and willfully, directly or indirectly, solicit, receive, offer, or pay any remuneration that is intended to induce the referral of business, including the purchase, order, lease of any good, facility, item or service for which payment may be made under programs such as a federal healthcare program, such as Medicare or Medicaid in the U.S.
 Federal and equivalent foreign civil and criminal false claims laws and the federal civil monetary penalties law and equivalent foreign laws, which prohibit among other things, any person or entity from knowingly presenting, or causing to be presented, for payment to, or approval by, federal programs, including Medicare and Medicaid, claims for items or services, including drugs, that are false or fraudulent or not provided as claimed and knowingly making, or causing to be made, a false record or to avoid or decrease an obligation to pay money to the federal government.
 The Health Insurance Portability and Accountability Act of 1996 (HIPAA) created additional federal criminal statutes that prohibit, among other actions, knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit program, including private third-party payors and knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement in connection with the delivery of or payment for healthcare benefits, items or services and equivalent foreign laws.
 We may be subject to HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009 (HITECH) and their privacy and security regulations, which impose certain obligations, including the adoption of administrative, physical and technical safeguards to protect individually identifiable health information on covered entities subject to HIPAA (i.e., health plans, healthcare clearinghouses and certain healthcare providers) and their business associates that perform certain services for or on their behalf involving the use or disclosure of individually identifiable health information as well as their covered subcontractors.
 The federal Physician Payments Sunshine Act requires certain manufacturers of drugs, devices, biologics and medical supplies to report annually to the Centers for Medicare & Medicaid Services (CMS) information related to payments or other transfers of value made to physicians (defined to include doctors, dentists, optometrists, podiatrists and chiropractors), other healthcare professionals (such as physician assistants and nurse practitioners) and teaching hospitals, as well as information regarding ownership and investment interests held by physicians and their immediate family members.
 Also, many states have similar healthcare statutes or regulations that may be broader in scope and may apply regardless of payor. Additionally, to the extent that our product is sold in a foreign country, we may be subject to similar foreign laws.
 The U.S. Foreign Corrupt Practices Act (FCPA) prohibits corporations and individuals from engaging in certain activities to obtain or retain business or to influence a person working in an official capacity. It is illegal to pay, offer to pay or authorize the payment of anything of value to any foreign government official, government staff member, political party, or political candidate in an attempt to obtain or retain business or to otherwise influence a person working in an official capacity. The FCPA also imposes accounting standards and requirements on publicly traded U.S. corporations and their foreign affiliates, which are intended to prevent the diversion of corporate funds to the payment of bribes and other improper payments. Similar laws exist in other countries, such as the United Kingdom (UK) or in EU member states, that restrict improper payments to public and private parties. Many countries have laws prohibiting these types of payments within the respective country. In addition to these anti-corruption laws, we are subject to import and export control laws, tariffs, trade barriers, economic sanctions, and regulatory limitations on our ability to operate in certain foreign markets.
 Failure to comply with these laws, where applicable, can result in significant penalties, including the imposition of significant civil, criminal and administrative penalties, damages, monetary fines, disgorgement, imprisonment, possible exclusion from participation in Medicare, Medicaid and other federal and equivalent foreign healthcare programs, and additional reporting requirements and regulatory oversight, any of which could adversely affect our ability to operate our business and our results of operations.

 Development and Marketing Approval for Products
 Preclinical studies generally are conducted in laboratory animals to evaluate the potential safety and efficacy of a product. Drug developers submit the results of preclinical studies to the FDA as a part of an investigational new drug application (IND) and to equivalent foreign authorities before clinical trials can begin in humans. Typically, clinical evaluation involves a time consuming and costly multi-phase process.

 Phase 1
 Clinical trials are conducted with a small number of subjects to determine the early safety profile, maximum tolerated dose and pharmacokinetic properties of the product in human volunteers or in patients with the target disease.

 Phase 2
 Clinical trials are conducted with groups of patients afflicted with a specific disease in order to determine preliminary efficacy, optimal dosages and expanded evidence of safety.

 Phase 3
 Larger, multi-center, comparative clinical trials are conducted with patients afflicted with a specific disease in order to determine safety and efficacy as primary support for regulatory approval by the FDA, the European Commission, or equivalent foreign authorities, to market a product candidate for a specific disease.

 The FDA closely monitors the progress of each of the three phases of clinical trials that are conducted in the U.S. and may, at its discretion, re-evaluate, alter, suspend or terminate the testing based upon the data accumulated to that point and the FDA's assessment of the risk/benefit ratio to the patient. Institutional Review Boards, Institutional Ethics Committees and Data Safety Monitoring Boards also closely monitor the conduct of our trials and may also place holds on our clinical trials or recommend that we voluntarily do so. Clinical trials conducted in foreign countries are also subject to oversight by regulatory authorities in those countries.
 Once Phase 3 trials are completed, drug developers submit the results of preclinical studies and clinical trials to the FDA in the form of a new drug application (NDA) for approval to commence commercial sales. In most cases, the submission of an NDA is subject to a substantial application user fee. Under the Prescription Drug User Fee Act (PDUFA), the FDA has a goal of 10 months from the date of filing of a standard NDA for a new molecular entity to review and act on the submission. The FDA generally has a six-month review goal of priority NDAs.
 In addition, under the Pediatric Research Equity Act of 2003 as amended and reauthorized, certain applications or supplements to an application must contain data that are adequate to assess the safety and effectiveness of the drug for the claimed indications in all relevant pediatric subpopulations, and to support dosing and administration for each pediatric subpopulation for which the product is safe and effective. The FDA may, on its own initiative or at the request of the applicant, grant deferrals for submission of some or all pediatric data until after approval of the product for use in adults or full or partial waivers from the pediatric data requirements.
 The FDA also may require submission of a risk evaluation and mitigation strategy to ensure that the benefits of the drug outweigh its risks. The risk evaluation and mitigation strategy could include medication guides, physician communication plans, assessment plans and/or additional elements to assure safe use, such as restricted distribution methods, patient registries, or other risk minimization tools.
 The FDA conducts a preliminary review of all NDAs within the first 60 days after submission, before accepting them for filing, to determine whether they are sufficiently complete to permit substantive review. The FDA may request additional information rather than accept an application for filing. Once the submission is accepted for filing, the FDA begins an in-depth substantive review. The FDA reviews an NDA to determine, among other things, whether the drug is safe and effective for its intended use and whether the facility in which it is manufactured, processed, packaged or held meets standards designed to assure the product's continued safety, quality and purity.
 The FDA may refer an application for a novel drug to an advisory committee. An advisory committee is a panel of independent experts, including clinicians and other scientific experts, that reviews, evaluates and provides a recommendation as to whether the application should be approved and under what conditions. The FDA is not bound by the recommendations of an advisory committee, but it considers such recommendations carefully when making decisions.
 Before approving an NDA, the FDA typically will inspect the facility or facilities where the product is manufactured. The FDA will not approve an application unless it determines that the manufacturing processes and facilities are in compliance with cGMP requirements and adequate to assure consistent production of the product within required specifications. Additionally, before approving an NDA, the FDA may inspect one or more clinical trial sites to assure compliance with Good Clinical Practice (GCP) requirements.

 After evaluating the NDA and all related information, including the advisory committee recommendation, if any, and inspection reports regarding the manufacturing facilities and clinical trial sites, the FDA may issue an approval letter, or, in some cases, a complete response letter. A complete response letter generally contains a statement of specific conditions that must be met in order to secure final approval of the application and may require additional clinical or preclinical testing in order for FDA to reconsider the application. Even with submission of this additional information, the FDA ultimately may decide that the application does not satisfy the regulatory criteria for approval. If and when those conditions have been met to the FDA's satisfaction, the FDA will typically issue an approval letter. An approval letter authorizes commercial marketing of the drug with specific prescribing information for specific indications.
 Even if the FDA approves a product, it may limit the approved indications for use of the product, require that contraindications, warnings or precautions be included in the product labeling, require that post-approval studies, including Phase 4 clinical trials, be conducted to further assess a drug's safety after approval, require testing and surveillance programs to monitor the product after commercialization, or impose other conditions, including distribution and use restrictions or other risk management mechanisms under a risk evaluation and mitigation strategy, which can materially affect the potential market and profitability of the product. The FDA may prevent or limit further marketing of a product based on the results of post-marketing studies or surveillance programs. After approval, some types of changes to the approved product, such as adding new indications, manufacturing changes and additional labeling claims, are subject to further testing requirements and FDA review and approval.
 We will also have to complete an approval process similar to that in the U.S. in order to commercialize our product candidates in each foreign country. The approval procedure and the time required for approval vary from country to country and may involve additional testing. Foreign approvals may not be granted on a timely basis, or at all. In addition, regulatory approval of prices is required in most countries other than the U.S., except for a certain limited number of drugs sold to certain Medicare beneficiaries beginning in 2023. The resulting prices may not be sufficient to generate an acceptable return to us or our corporate collaborators.
 Orphan Drug Designation
 Under the Orphan Drug Act, the FDA may grant orphan drug designation to a drug intended to treat a rare disease or condition, which is a disease or condition that affects fewer than 200,000 individuals in the U.S., or if it affects more than 200,000, there is no reasonable expectation that sales of the drug in the U.S. will be sufficient to offset the costs of developing and making the drug available in the U.S. Orphan drug designation must be requested before submitting an NDA. Orphan drug designation does not convey any advantage in or shorten the duration of the regulatory review and approval process.
 If the FDA approves a sponsor's marketing application for a designated orphan drug for use in the rare disease or condition for which it was designated, the sponsor is eligible for a seven-year period of marketing exclusivity, during which the FDA may not approve another sponsor's marketing application for a drug with the same active moiety and intended for the same use or indication as the approved orphan drug, except in limited circumstances, such as if a subsequent sponsor demonstrates its product is clinically superior. During a sponsor's orphan drug exclusivity period, competitors, however, may receive approval for drugs with different active moieties for the same indication as the approved orphan drug, or for drugs with the same active moiety as the approved orphan drug, but for different indications. Orphan drug exclusivity could block the approval of one of our products for seven years if a competitor obtains approval for a drug with the same active moiety intended for the same indication before we do, unless we are able to demonstrate that grounds for withdrawal of the orphan drug exclusivity exist, or that our product is clinically superior. Further, if a designated orphan drug receives marketing approval for an indication broader than the rare disease or condition for which it received orphan drug designation, it may not be entitled to exclusivity.
 Post-Approval Requirements
 Drugs manufactured or distributed pursuant to FDA approvals are subject to pervasive and continuing regulation by the FDA, including, among other things, requirements relating to recordkeeping, periodic reporting, product sampling and distribution, advertising and promotion and reporting of adverse experiences with the product. After approval, most changes to the approved product, such as adding new indications or other labeling claims are subject to prior FDA review and approval. There also are continuing, annual program user fee requirements for any marketed products, as well as new application fees for supplemental applications with clinical data.

 The FDA may impose a number of post-approval requirements as a condition of approval of an NDA. For example, the FDA may require post-marketing testing, including Phase 4 clinical trials, and surveillance to further assess and monitor the product's safety and effectiveness after commercialization.
 In addition, drug manufacturers and other entities involved in the manufacture and distribution of approved drugs are required to register their establishments with the FDA and state agencies and are subject to periodic unannounced inspections by the FDA and these state agencies for compliance with cGMP requirements. Changes to the manufacturing process are strictly regulated and often require prior FDA approval before being implemented. FDA regulations also require investigation and correction of any deviations from cGMP requirements and impose reporting and documentation requirements upon the sponsor and any third-party manufacturers that the sponsor may decide to use. Accordingly, manufacturers must continue to expend time, money and effort in the area of production and quality control to maintain cGMP compliance.
 Once an approval is granted, the FDA may withdraw the approval if compliance with regulatory requirements and standards is not maintained or if problems occur after the product reaches the market. Later discovery of previously unknown problems with a product, including adverse events of unanticipated severity or frequency, or with manufacturing processes, or failure to comply with regulatory requirements, may result in mandatory revisions to the approved labeling to add new safety information; imposition of post-market studies or clinical trials to assess new safety risks; or imposition of distribution or other restrictions. Other potential consequences include, among other things:
 • restrictions on the marketing or manufacturing of the product, complete withdrawal of the product from the market or product recalls;
 • fines, warning letters or holds on post-approval clinical trials;
 • refusal of the FDA to approve pending NDAs or supplements to approved NDAs, or suspension or revocation of product approvals;
 • product seizure or detention, or refusal to permit the import or export of products; or
 • injunctions or the imposition of civil or criminal penalties.
 The FDA strictly regulates marketing, labeling, advertising and promotion of products that are placed on the market. Drugs may be promoted only for the approved indication(s) and in accordance with the provisions of the approved label. However, companies may share truthful and not misleading information that is otherwise consistent with a product's FDA approved labeling. The FDA and other agencies actively enforce the laws and regulations prohibiting pre-approval promotion of investigational drugs, as well as the promotion of off-label uses of approved drugs, and a company may be subject to significant liability. Physicians may prescribe legally available products for uses that are not described in the product's labeling and that differ from those tested by us and approved by the FDA. The FDA does not regulate behavior of physicians in their choice of treatments. The FDA does, however, restrict manufacturer's communications on the subject of off-label use of their products.

 Reimbursement
 Significant uncertainty exists as to the coverage and reimbursement status of any product candidates for which we obtain regulatory approval. In the U.S. and other countries, sales of any products for which we receive regulatory approval will depend, in part, on the extent to which third-party payors provide coverage and establish adequate reimbursement levels for such drug products.
 In the U.S., third-party payors include federal and state healthcare programs, government authorities, private managed care providers, private health insurers and other organizations. No uniform policy for coverage and reimbursement exists in the U.S., and coverage and reimbursement can differ significantly from payor to payor. Third-party payors often rely upon Medicare coverage policy and payment limitations in setting their own reimbursement rates, but also have their own methods and approval process apart from Medicare determinations. As a result, the coverage determination process is often a time-consuming and costly process that will require us to provide scientific and clinical support for the use of our drug products to each payor separately, with no assurance that coverage and adequate reimbursement will be obtained in the first instance or applied consistently.

 Third-party payors are increasingly challenging the price, examining the medical necessity and reviewing the cost-effectiveness of drug products and medical services, in addition to questioning their safety, efficacy and clinical appropriateness. Such payors may limit coverage to specific drug products on an approved list, also known as a formulary, which might not include all of the FDA-approved drugs for a particular indication. We may need to conduct expensive pharmaco-economic studies in order to demonstrate the medical necessity and cost-effectiveness of our products, in addition to the costs required to obtain the FDA approvals. Nonetheless, our products or product candidates, including INGREZZA, may not be considered medically necessary or cost-effective.
 Moreover, the process for determining whether a third-party payor will provide coverage for a drug product may be separate from the process for setting the price of a drug product or for establishing the reimbursement rate that such a payor will pay for the drug product. A payor's decision to provide coverage for a drug product does not imply that an adequate reimbursement rate will be approved. Further, one payor's determination to provide coverage for a drug product does not assure that other payors will also provide coverage for the drug product. Adequate third-party payor reimbursement may not be available to enable us to maintain price levels sufficient to realize an appropriate return on our investment in product development.
 The marketability of any product or product candidates for which we or our collaborators receive regulatory approval for commercial sale may suffer if third-party payors fail to provide coverage and adequate reimbursement. In addition, emphasis on managed care in the U.S. has increased and we expect will continue to increase the pressure on pharmaceutical pricing. Coverage policies and third-party payor reimbursement rates may change at any time. Even if favorable coverage and reimbursement status is attained for one or more products for which we receive regulatory approval, less favorable coverage policies and reimbursement rates may be implemented in the future.

 Healthcare Reform Measures
 The U.S. and some foreign jurisdictions have enacted a number of legislative and regulatory proposals to change the healthcare system in ways that could affect our ability to sell our products profitably. In the U.S., the pharmaceutical industry and the cost of prescription drugs has been a continuous focus of these efforts and has been significantly affected by major legislative initiatives.
 Most recently, in August 2022, the Inflation Reduction Act of 2022 (IRA) was signed into law, which, among other things, (1) directs the Secretary of the U.S. Department of Health and Human Services (HHS) to negotiate the price of certain high-expenditure, single-source drugs and biologics covered under Medicare, (2) redesigns the Medicare Part D prescription drug benefit to lower patient out-of-pocket costs and increase manufacturer liability and (3) requires drug manufacturers to pay rebates on drugs whose prices increase greater than the rate of inflation. The IRA also extends enhanced subsidies for individuals purchasing health insurance coverage in the ACA marketplaces through plan year 2025 and eliminated the "donut hole" under the Medicare Part D program in 2025 by significantly lowering the beneficiary maximum out-of-pocket cost to $2,000 through a newly established manufacturer discount program. These provisions took effect progressively starting in 2023. On August 15, 2024, HHS announced the negotiated prices of the first 10 drugs that were subject to price negotiations, although the Medicare drug price negotiation program is currently subject to legal challenges. On January 17, 2025, HHS announced its selection of fifteen additional drugs covered under Part D for negotiation in 2025 (for initial price applicability year 2027). Certain high-expenditure Part B and Part D drugs/biologics will be selected for negotiation in 2026 (for initial price applicability year 2028) and annually thereafter. AUSTEDO and AUSTEDO XR, marketed by Teva Pharmaceuticals Industries, have been selected for the Medicare drug negotiation program in 2025 (for initial price applicability year 2027). If the negotiation program results in a decrease in the price of AUSTEDO or AUSTEDO XR, it may result in increased competitive pressure on INGREZZA. The overall impact of any potential negotiated priced reduction of AUSTEDO or AUSTEDO XR on INGREZZA revenues is inherently uncertain and difficult to predict.
 While the Medicare drug negotiation program targets high-expenditure drugs/biologics that have been on the market for several years without generic or biosimilar competition, we were notified in January 2025 that INGREZZA qualifies for the small biotech exception, which provides an exemption from selection for price negotiation until 2027 (for initial price applicability year 2029, pursuant to which negotiated pricing would go into effect, if selected).

 Additionally, on January 1, 2025, the Centers for Medicare & Medicaid Services (CMS) implemented those provisions of the IRA establishing a new Medicare Part D manufacturer discount program. Under this discount program and subject to certain exceptions, manufacturers must give a 10 percent discount on Part D program drugs in the initial coverage phase, and a 20 percent discount on Part D drugs when the beneficiary enters the catastrophic coverage phase (the phase after the patient incurs costs above the initial phase out-of-pocket threshold, which is $2,000). However, the IRA allows the 10 and 20 percent discounts to be phased in over a multi-year period for "specified manufacturers" and "specified small manufacturers". During this phase-in period, such manufacturers would pay a lower percentage discount on Medicare Part D program drugs. In April 2024, the Company was notified by CMS that it qualified as a "specified small manufacturer" and will receive the discount phase-in discussed above for INGREZZA. INGREZZA is reimbursed under Medicare Part D, and increased discounts could impact INGREZZA revenues, while also having an industry-wide impact on the cost of other Part D program drugs such as AUSTEDO and AUSTEDO XR. The overall impact on INGREZZA revenues is inherently uncertain and difficult to predict and we are still evaluating the potential impact of this discount program and our designation as a "specified small manufacturer."
 Our designation as a "specified small manufacturer" under the new Medicare Part D manufacturer discount program and INGREZZA's qualification for the small biotech exception for purposes of the Medicare drug price negotiation program are subject to various requirements and there is no assurance that we will continue to qualify for these exemptions in the future. The loss or potential loss of these exemptions, including as a result of a third party acquiring us, could have an adverse impact on our business.
 The most significant prior revisions to federal law governing the pharmaceutical industry and prescription drug pricing were enacted through the March 2010 Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act (collectively, the ACA). This law was intended to broaden access to health insurance by reducing the number of uninsured persons, reducing or constraining the growth of healthcare spending, enhancing remedies against fraud and abuse, adding transparency requirements for the healthcare and health insurance industries, imposing taxes and fees on the health industry and imposing additional health policy reforms.
 We expect that these health reform measures may result in more rigorous coverage criteria and lower reimbursement for prescription drugs, as well as result in additional downward pressure on any price that we receive for any approved product. Any reduction in reimbursement from Medicare or other government-funded programs may result in a similar reduction in payments from private third-party payors.
 Other significant legislative changes impacting the pharmaceutical industry and prescription drug pricing have been adopted since the ACA was enacted. These changes include, among others, aggregate reductions to Medicare payments to providers of up to 2% per fiscal year pursuant to the Budget Control Act of 2011, which began in 2013 and, due to subsequent legislative amendments, including the Investment and Jobs Act, will remain in effect through 2032.
 At the state level, legislatures have increasingly passed legislation and implemented regulations designed to examine and/or control pharmaceutical and biological product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. For example, on January 5, 2024, the FDA approved Florida's Section 804 Importation Program (SIP) proposal to import certain drugs from Canada for specific state healthcare programs. It is unclear how this program will be implemented, including which drugs will be chosen, and whether it will be subject to legal challenges in the U.S. or Canada. Other states have also submitted SIP proposals that are pending review by the FDA. Any such approved importation plans, when implemented, may result in lower drug prices for products covered by those programs. Further, certain states through legislation have created a state prescription drug affordability board (PDAB) to help control costs of drugs for that state. The functions of the PDABs vary by state, and may include among others, negotiating the price the state pays for certain drugs, recommending or setting upper limits on drug prices, performing drug affordability reviews, and advising state lawmakers on additional ways to reduce the state's drug spending. It is possible that the actions taken by the PDABs may result in lower prices for certain drug products sold in their states.

 Proposed Healthcare Reform Measures
 The U.S. and some foreign jurisdictions are considering a number of legislative and regulatory proposals to change the healthcare system in ways that could affect our ability to sell our products profitably. Among policy makers and payors in the U.S. and elsewhere, there is significant interest in promoting changes in healthcare systems with the stated goals of containing healthcare costs, improving quality or expanding access. In the U.S., the pharmaceutical industry has been a particular focus of these efforts and may be significantly affected by major legislative initiatives.
 We are currently unable to predict what other additional legislation or regulation, if any, relating to the healthcare industry may be enacted in the future or what effect recently enacted federal legislation or any such additional legislation or regulation would have on our business, particularly in light of the recent U.S. Presidential and Congressional elections.

 Regulation and Procedures Governing Approval of Medicinal Products in the EU
 To market any product outside of the U.S., a company must also comply with numerous and varying regulatory requirements of other countries and jurisdictions regarding quality, safety and efficacy and governing, among other things, clinical trials, marketing authorization, commercial sales and distribution of products. Whether or not it obtains FDA approval for a product, an applicant will need to obtain the necessary approvals by the comparable foreign regulatory authorities before it can initiate clinical trials or marketing of the product in those countries or jurisdictions. Specifically, the process governing approval of medicinal products in the EU generally aligns with the requirements in the U.S. It entails satisfactory completion of pharmaceutical development, nonclinical studies and adequate and well-controlled clinical trials to establish the safety and efficacy of the medicinal product for each proposed indication.
 The requirements and process governing the conduct of clinical trials, product licensing, pricing and reimbursement may vary from country to country. In all cases, the clinical trials must be conducted in accordance with GCP and the applicable regulatory requirements and the ethical principles that have their origin in the Declaration of Helsinki. Medicines used in clinical trials must be manufactured in accordance with cGMP and in a GMP licensed facility, which can be subject to GMP inspections.
 Clinical Trials in the EU
 In the EU, the Clinical Trials Regulation (EU) No 536/2014 (CTR) entered into application on January 31, 2022 and became effective for all clinical trials on January 31, 2025, repealing and replacing the former Clinical Trials Directive 2001/20 (CTD). The regulation introduces a streamlined application procedure via a single entry point, the "EU portal", the Clinical Trials Information System (CTIS); a single set of documents to be prepared and submitted for the application as well as simplified reporting procedures for clinical trial sponsors. A harmonized procedure for the assessment of applications for clinical trials has been introduced and is divided into two parts.
 Marketing Authorizations
 In the EU, medicinal products can only be commercialized after a related marketing authorization (MA) has been granted. To obtain an MA for a product in the EU, an applicant must submit a marketing authorization application (MAA) either under a centralized procedure administered by the EMA or one of the procedures administered by the competent authorities of EU Member States (decentralized procedure, national procedure or mutual recognition procedure). An MA may be granted only to an applicant established in the EU.
 The centralized procedure provides for the grant of a single MA by the European Commission that is valid throughout the European Economic Area (which is comprised of the 27 EU Member States plus Norway, Iceland and Liechtenstein). Pursuant to Regulation (EC) No 726/2004, the centralized procedure is compulsory for specific products, including for (i) medicinal products derived from biotechnological processes, (ii) products designated as orphan medicinal products, (iii) advanced therapy medicinal products (ATMPs), and (iv) products with a new active substance indicated for the treatment of HIV/AIDS, cancer, neurodegenerative diseases, diabetes, auto-immune and other immune dysfunctions and viral diseases. For products with a new active substance indicated for the treatment of other diseases and products that are highly innovative or for which a centralized process is in the interest of patients, authorization through the centralized procedure is optional on related approval.

 Accelerated assessment may be granted by the EMA's Committee for Medicinal Products for Human Use (CHMP) in exceptional cases, when a medicinal product targeting an unmet medical need is expected to be of major interest from the point of view of public health and, in particular, from the viewpoint of therapeutic innovation. If the CHMP accepts a request for accelerated assessment, the time limit of 210 days will be reduced to 150 days (excluding clock stops). The CHMP can, however, revert to the standard time limit for the centralized procedure if it considers that it is no longer appropriate to conduct an accelerated assessment.
 An MA has, in principle, an initial validity of five years. The MA may be renewed after five years on the basis of a re-evaluation of the risk-benefit balance by the EMA or by the competent authority of the EU Member State in which the original MA was granted. The European Commission or the competent authorities of the EU Member States may decide on justified grounds relating to pharmacovigilance, to proceed with one further five-year renewal period for the MA. Once subsequently definitively renewed, the MA shall be valid for an unlimited period. Any authorization which is not followed by the actual placing of the medicinal product on the EU market (for a centralized MA) or on the market of the authorizing EU Member State within three years after authorization ceases to be valid (the so-called sunset clause).
 Upon receiving an MA, innovative medicinal products are generally entitled to receive eight years of data exclusivity and 10 years of market exclusivity. Data exclusivity, if granted, prevents regulatory authorities in the EU from referencing the innovator's data to assess a generic application or biosimilar application for eight years from the date of authorization of the innovative product, after which a generic or biosimilar MAA can be submitted, and the innovator's data may be referenced. The market exclusivity period prevents a successful generic or biosimilar applicant from commercializing its product in the EU until 10 years have elapsed from the initial MA of the reference product in the EU. The overall ten-year period may, occasionally, be extended for a further year to a maximum of 11 years if, during the first eight years of those ten years, the MA holder obtains an authorization for one or more new therapeutic indications which, during the scientific evaluation prior to their authorization, are held to bring a significant clinical benefit in comparison with existing therapies.
 Orphan Designation and related Exclusivity in the EU
 In the EU, Regulation (EC) No. 141/2000 provides that a medicinal product can be designated as an orphan medicinal product by the European Commission if its sponsor can establish that: (i) the product is intended for the diagnosis, prevention or treatment of life-threatening or chronically debilitating conditions; (ii) either (a) such conditions affect not more than five in 10,000 persons in the EU when the application is made, or (b) the product without the benefits derived from orphan status, would not generate sufficient return in the EU to justify the necessary investment in developing the medicinal product; and (iii) there exists no satisfactory authorized method of diagnosis, prevention, or treatment of the condition that has been authorized in the EU, or even if such method exists, the product will be of significant benefit to those affected by that condition.
 Upon grant of a marketing authorization, orphan medicinal products are entitled to a ten-year period of market exclusivity for the approved therapeutic indication, which means that the EMA cannot accept another marketing authorization application or accept an application to extend for a similar product and the European Commission cannot grant a marketing authorization for the same indication for a period of ten years. The period of market exclusivity is extended by two years for orphan medicinal products that have also complied with an agreed PIP. The period of market exclusivity may, however, be reduced to six years if, at the end of the fifth year, it is established that the product no longer meets the criteria on the basis of which it received orphan medicinal product destination.
 Post-Authorization Obligations in the EU
 Where an MA is granted in relation to a medicinal product in the EU, the holder of the MA is required to comply with a range of regulatory requirements applicable to the manufacturing, marketing, promotion and sale of medicinal products. Similar to the U.S., both MA holders and manufacturers of medicinal products are subject to comprehensive regulatory oversight by the EMA, the European Commission and/or the competent regulatory authorities of the individual EU Member States. The holder of an MA must establish and maintain a pharmacovigilance system and appoint an individual qualified person for pharmacovigilance who is responsible for oversight of that system. Key obligations include expedited reporting of suspected serious adverse reactions and submission of periodic safety update reports (PSURs).

 In the EU, the advertising and promotion of medicinal products are subject to both EU and EU Member States' laws governing promotion of medicinal products, interactions with physicians and other healthcare professionals, misleading and comparative advertising and unfair commercial practices. General requirements for advertising and promotion of medicinal products, such as direct-to-consumer advertising of prescription medicinal products are established in EU law. However, the details are governed by regulations in individual EU Member States and can differ from one country to another.
 Brexit and the Regulatory Framework in the UK
 The UK's withdrawal from the EU on January 31, 2020, commonly referred to as Brexit, has changed the regulatory relationship between the UK and the EU. The Medicines and Healthcare products Regulatory Agency (MHRA) is now the UK's standalone regulator for medicinal products and medical devices. Great Britain (England, Scotland and Wales) is now a third country to the EU. Northern Ireland continues to follow the EU regulatory rules.
 The UK regulatory framework in relation to clinical trials is governed by the Medicines for Human Use (Clinical Trials) Regulations 2004, as amended, which is derived from the CTD, as implemented into UK national law through secondary legislation. In October 2023, the MHRA announced a new Notification Scheme for clinical trials which enables a more streamlined and risk-proportionate approach to initial clinical trial applications for Phase 4 and low-risk Phase 3 clinical trial applications.
 Marketing authorizations in the UK are governed by the Human Medicines Regulations (SI 2012/1916), as amended. This legislation includes procedures to prioritize access to new medicines that will benefit patients, including a 150-day assessment route, a rolling review procedure and the International Recognition Procedures (IRP) which entered into application on January 1, 2024. Since January 1, 2024, the MHRA may rely on the IRP when reviewing certain types of marketing authorization applications. There is no pre-marketing authorization orphan designation for medicinal products in the UK. Instead, the MHRA reviews applications for orphan designation in parallel to the corresponding marketing authorization application. The criteria are essentially the same as those in the EU but have been tailored for the market.

 Human Capital
 Our Employees
 We have grown to a team of approximately 1,800 employees as of December 31, 2024, primarily employed in the U.S. Our highly qualified and experienced team, which includes scientists, physicians, and professionals across sales, marketing, manufacturing, regulatory, finance, and other essential functions are critical to our success. We also leverage temporary workers to provide flexibility for our business needs. During 2024, we added more than 400 new employees to our team.
 We expect to add additional employees in 2025 with a focus on expanding our research and development organization. We continually evaluate our business needs and opportunities and balance in-house with external expertise and capacity. Currently, we rely on third-party contract manufacturers.
 Our Culture
 The success of our human capital management investments is evidenced by our low employee turnover, a number which is regularly reviewed by our Board of Directors as part of their oversight of our human capital strategy. In recognition of our efforts, in 2024, we were ranked #7 in Fortune Best Workplaces in BiopharmaTM and named Company of the Year: Specialty Pharma/Biotech in the PM360 Trailblazer Awards.
 Employee Engagement, Talent Development & Benefits
 We believe that our future success largely depends upon our continued ability to attract and retain highly skilled employees. We provide our employees with competitive salaries and bonuses, opportunities for equity ownership, development programs that enable continued learning and growth and a robust employment package that promotes well-being across all aspects of their lives, including healthcare, retirement planning and paid time off. As part of our promotion and retention efforts, we also invest in ongoing leadership development programs as well as offer tuition reimbursement. In addition, we regularly conduct employee surveys to gauge employee engagement and identify areas of focus.

 Diversity & Inclusion
 Much of our success is rooted in the diversity of our teams and our commitment to inclusion. We value diversity at all levels and continue to focus on extending our diversity and inclusion initiatives across our entire workforce. We believe that our business benefits from the different perspectives a diverse workforce brings, and we pride ourselves on having a strong, inclusive and positive culture based on our shared mission and values.

 Corporate Information
 We were originally incorporated in California in January 1992 and reincorporated in Delaware in May 1996. Our principal executive offices are located at 6027 Edgewood Bend Court, San Diego, California 92130. Our telephone number is (858) 617-7600.
 Our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to reports filed pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended, are available free of charge on our website at www.neurocrine.com, as soon as reasonably practicable after such reports are available on the Securities and Exchange Commission (SEC) website at www.sec.gov. Additionally, copies of our Annual Report will be made available, free of charge, upon written request. Information found on, or accessible through, our website is not a part of, and is not incorporated into, this Annual Report on Form 10-K.

 Item 1A. Risk Factors
 The following information sets forth risk factors that could cause our actual results to differ materially from those contained in forward-looking statements we have made in this Annual Report on Form 10-K and those we may make from time to time. If any of the following risks actually occur, our business, operating results, prospects or financial condition could be harmed. Additional risks not presently known to us, or that we currently deem immaterial, may also affect our business operations.

 Summary Risk Factors
 We face risks and uncertainties related to our business, many of which are beyond our control. In particular, risks associated with our business include:
 • We may not be able to continue to successfully commercialize INGREZZA or any of our product candidates if they are approved in the future.
 • We may not be able to successfully launch CRENESSITY.
 • If physicians and patients do not continue to accept INGREZZA or do not accept CRENESSITY, or our sales and marketing efforts are not effective, we may not generate sufficient revenue.
 • We face intense competition, and if we are unable to compete effectively, the demand for our products may be reduced.
 • Government and third-party payors may impose sales and pharmaceutical pricing controls on our products, or limit coverage and/or reimbursement for our products or impose policies and/or make decisions regarding the status of our products that could limit our product revenues and delay sustained profitability.
 • Because the development of our product candidates is subject to a substantial degree of technological uncertainty, we may not succeed in developing any of our product candidates.
 • Our clinical trials may be delayed for safety or other reasons, or fail to demonstrate the safety and efficacy of our product candidates, which could prevent or significantly delay their regulatory approval.
 • Enacted healthcare reform, drug pricing measures and other recent legislative initiatives, including the Inflation Reduction Act of 2022, could adversely affect our business.
 • We have increased the size of our organization and will need to continue to increase the size of our organization. We may encounter difficulties with managing our growth, which could adversely affect our results of operations.
 • We are transforming our research and development strategies to include the development of biologics, which requires substantial investment, including in personnel and facilities. We may encounter difficulties as we expand and may fail to successfully develop or commercialize our biologic product candidates, which could adversely affect our results of operations.

 • If we are unable to retain and recruit qualified scientists and other employees or if any of our key senior executives discontinues his or her employment with us, it may delay our development efforts or impact our commercialization of INGREZZA, CRENESSITY, or any product candidate approved by the FDA in the future.
 • Use of our approved products or those of our collaborators could be associated with side effects or adverse events.
 • We currently depend on a limited number of third-party suppliers. The loss of these suppliers, or delays or problems in the supply of INGREZZA, CRENESSITY, or our product candidates, could materially and adversely affect our ability to successfully develop or commercialize INGREZZA, CRENESSITY, or any of our product candidates.
 • We currently have no manufacturing capabilities. If third-party manufacturers of INGREZZA, CRENESSITY, or any of our product candidates fail to devote sufficient time and resources to our concerns, or if their performance is substandard, our ability to commercialize existing products, conduct clinical trials and develop new products could be impaired and our costs may rise.
 • We depend on our current collaborators for the development and commercialization of several of our products and product candidates and may need to enter into future collaborations to develop and commercialize certain of our product candidates.
 • We license some of our core technologies and drug candidates from third parties. If we default on any of our obligations under those licenses, or violate the terms of these licenses, we could lose our rights to those technologies and drug candidates or be forced to pay damages.
 • If we are unable to protect our intellectual property, our competitors could develop and market products based on our discoveries, which may reduce demand for our products.
 • Our customers are concentrated and therefore the loss of a significant customer may harm our business.
 • We may need additional capital in the future. If we cannot raise additional funding, we may be unable to fund our business plan and our future research, development, commercial and manufacturing efforts.
 • We expect to increase our expenses for the foreseeable future, and we may not be able to sustain growth and profitability.
 Risks Related to Our Company
 We may not be able to continue to successfully commercialize INGREZZA or any of our product candidates if they are approved in the future.
 We launched INGREZZA in the U.S. as the first FDA-approved drug for the treatment of tardive dyskinesia in May 2017 and for the treatment of chorea associated with Huntington's disease in August 2023. Our ability to produce INGREZZA revenues consistent with expectations ultimately depends on our ability to continue to successfully commercialize INGREZZA and secure and maintain adequate third-party reimbursement. Our experience in marketing and selling pharmaceutical products began with INGREZZA's approval in 2017, when we hired our sales force and established our distribution and reimbursement capabilities, all of which are necessary to successfully commercialize our current and future products. We have continued to invest in our commercial infrastructure and distribution capabilities, including the recent expansion of our psychiatry and long-term care sales teams for INGREZZA in September 2024. While our team members and consultants have experience marketing and selling pharmaceutical products, we may face difficulties related to managing the rapid growth of our personnel and infrastructure, and there can be no guarantee that we will be able to maintain the personnel, systems, arrangements and capabilities necessary to continue to successfully commercialize INGREZZA or any product candidate approved by the FDA, or equivalent foreign authorities, in the future.

 We may not be able to successfully launch CRENESSITY.
 In December 2024, we announced FDA approval and launched CRENESSITY capsules and oral solution as an adjunctive treatment to glucocorticoid replacement to control androgens in adult and pediatric patients four years of age and older with classic CAH. We have also established our commercial team and hired our U.S. sales force for CRENESSITY. The successful commercial launch of CRENESSITY depends on the extent to which patients and physicians accept and adopt CRENESSITY as a treatment for CAH, and we do not know whether our expectations or estimates in this regard, or those of investors or securities analysts, will be accurate. Physicians may not prescribe CRENESSITY and patients may be unwilling to use CRENESSITY. In addition, patients may be unwilling to use CRENESSITY if reimbursement is not provided or reimbursement is inadequate to cover a significant portion of the cost to the patient. CRENESSITY is a first-in-class therapy for children and adults with classic CAH and will therefore require us to expend substantial time and resources to educate physicians and other healthcare providers about the benefits of CRENESSITY. If we are unable to provide our sales force with effective materials, including medical and sales literature to help them inform and educate potential customers about the benefits of CRENESSITY, our efforts to commercialize CRENESSITY may not be successful. Further, any negative publicity related to CRENESSITY, or negative development for CRENESSITY in our post-marketing commitments or in regulatory processes in other jurisdictions, may adversely impact the potential of CRENESSITY and our commercial results. If the commercialization of CRENESSITY and future sales are less successful than anticipated by us or our investors or securities analysts, our stock price could decline and our business may be harmed.
 If physicians and patients do not continue to accept INGREZZA or do not accept CRENESSITY, or our sales and marketing efforts are not effective, we may not generate sufficient revenue.
 The commercial success of INGREZZA and CRENESSITY will depend upon the acceptance of these products as safe and effective by the medical community and patients.
 The market acceptance of INGREZZA and CRENESSITY could be affected by a number of factors, including:
 • the timing of receipt of marketing approvals for additional indications;
 • the safety and efficacy of the products;
 • the pricing of these products;
 • the availability of healthcare payor coverage and adequate reimbursement for the products;
 • public perception regarding of these products;
 • the success of existing competitor products addressing our target markets or the emergence of equivalent or superior products; and
 • the cost-effectiveness of the products.
 If the medical community, patients and payors do not continue to accept our products as being safe, effective, superior and/or cost effective, we may not generate sufficient revenue.
 We face intense competition, and if we are unable to compete effectively, the demand for our products may be reduced.
 The biotechnology and pharmaceutical industries are subject to rapid and intense technological change. We face, and will continue to face, competition in the development and marketing of our products and product candidates from academic institutions, government agencies, research institutions and biotechnology and pharmaceutical companies.
 Competition may also arise from, among other things:
 • other drug development technologies;
 • methods of preventing or reducing the incidence of disease, including vaccines; and
 • new small molecule or other classes of therapeutic agents.
 Developments by others (including the development of generic equivalents) may render our product candidates or technologies obsolete or noncompetitive.

 We are commercializing and performing research on or developing products for the treatment of several disorders, including tardive dyskinesia, chorea associated with Huntington's disease, classic congenital adrenal hyperplasia, uterine fibroids, endometriosis, pain, Parkinson's disease, schizophrenia, epilepsy, and other neurology, neuroendocrinology, and neuropsychiatry-related diseases and disorders, and there are a number of competitors to our products and product candidates. If one or more of our competitors' products or programs are successful (including the development of generic equivalents), the market for our products may be reduced or eliminated.
 • INGREZZA competes with AUSTEDO (deutetrabenazine), marketed by Teva Pharmaceuticals Industries, for the treatment of tardive dyskinesia in adults and chorea associated with Huntington's disease. A once-daily dosing of AUSTEDO (AUSTEDO XR) was introduced in February 2023. Additionally, there are a number of commercially available medicines used to treat tardive dyskinesia off-label, such as XENAZINE (tetrabenazine) and generic equivalents, and various antipsychotic medications (e.g., clozapine), anticholinergics, benzodiazepines (off-label), and botulinum toxin. In addition, there are several programs in clinical development by other companies targeting Huntington's disease.
 • CRENESSITY competes with high dose corticosteroid monotherapy which is the current standard of care to both correct the endogenous cortisol deficiency as well as reduce the excessive adrenocorticotropic hormone levels for patients with CAH. In the U.S. alone, there are more than two dozen companies manufacturing steroid-based products. In addition, there are several programs in clinical development by other companies targeting CAH.
 • Our investigational treatments for potential use in schizophrenia and depression may in the future compete with several development-stage programs being pursued by other companies. In addition, there are a number of different anti-psychotic and anti-depressant medications currently used in these patient populations.
 • Our investigational treatments for potential use in neurology, neuroendocrinology and neuropsychiatry may in the future compete with numerous approved products and development-stage programs being pursued by several other companies.
 Compared to us, many of our competitors and potential competitors have substantially greater:
 • capital resources;
 • sales and marketing experience;
 • research and development resources, including personnel and technology;
 • regulatory experience;
 • preclinical study and clinical testing experience;
 • manufacturing, marketing and distribution experience; and
 • production facilities.
 Moreover, increased competition in certain disorders or therapies may make it more difficult for us to recruit or enroll patients in our clinical trials for similar disorders or therapies.
 Government and third-party payors may impose sales and pharmaceutical pricing controls on our products or limit coverage and/or reimbursement for our products or impose policies and/or make decisions regarding the status of our products that could limit our product revenues and delay sustained profitability.
 Our ability to continue to commercialize INGREZZA and successfully launch and commercialize CRENESSITY will depend in part on the extent to which coverage and adequate reimbursement for these products and related treatments will be available. The continuing efforts of government and third-party payors to contain or reduce the costs of healthcare and the price of prescription drugs through various means may impact our revenues. These payors' efforts could decrease the price that we receive for any products we may develop and sell in the future.

 Assuming we obtain coverage for a given product by a third-party payor, the resulting reimbursement rates may not be adequate or may require co-payments that patients find unacceptably high. Patients who are prescribed medications for the treatment of their conditions, and their prescribing physicians, generally rely on third-party payors to reimburse all or part of the costs associated with their prescription drugs. Patients are unlikely to use our products unless coverage is provided and reimbursement is adequate to cover all or a significant portion of the out-of-pocket cost of our products. Coverage decisions may depend upon clinical and economic standards that disfavor new drug products when more established or lower cost therapeutic alternatives are already available or subsequently become available regardless of whether they are approved by the FDA for that particular use. Coverage decisions by payors for our competitors' products may also impact coverage for our products.
 Government authorities and other third-party payors are developing increasingly sophisticated methods of controlling healthcare costs, such as by limiting coverage and the amount of reimbursement for particular medications. Further, no uniform policy requirement for coverage and reimbursement for drug products exists among third-party payors in the U.S. Therefore, coverage and reimbursement for drug products can differ significantly from payor to payor. As a result, the coverage determination process is often a time-consuming and costly process that will require us to provide scientific and clinical support for the use of our products to each payor separately, with no assurance that coverage and adequate reimbursement will be applied consistently or obtained in the first instance. In addition, communications from government officials, media outlets, and others regarding healthcare costs and pharmaceutical pricing could have a negative impact on our stock price, even if such communications do not ultimately impact coverage or reimbursement decisions for our products.
 There may also be significant delays in obtaining coverage and reimbursement for newly approved drugs or indications, and coverage may be more limited than the purposes for which the drug is approved by the FDA or comparable foreign regulatory authorities. Moreover, eligibility for coverage and reimbursement does not imply that a drug will be paid for in all cases or at a rate that covers our costs, including research, development, manufacture, sale and distribution. In addition, we could also be subject to amendments in our rebate agreements with pharmaceutical benefit managers that require us to pay larger rebate amounts or modify our formulary position, which could have a material adverse effect on our business. Even if favorable coverage and reimbursement status is attained for one or more products for which we receive regulatory approval, less favorable coverage policies and reimbursement rates may be implemented in the future. For example, government authorities could make a decision that adversely impacts the status of one of our products, which could impact the eligibility and/or the amount of government reimbursement for that product.
 As a pharmaceutical manufacturer, we are subject to various federal statutes and regulations requiring the reporting of price data and the subsequent provision of concessions to certain purchasers/payors, including state Medicaid programs. Federal agencies issue guidance to manufacturers related to the interpretation of laws and regulations, and this guidance has changed and may change or be updated over time. In interpreting these laws, regulations and guidance, manufacturers may make reasonable assumptions to fill gaps, and these reasonable assumptions may need to be updated upon issuance of additional agency guidance.
 If coverage and reimbursement are not available or reimbursement is available only to limited levels, we may be unable to successfully commercialize INGREZZA, CRENESSITY, or any of our product candidates for which we obtain marketing approval in the future. Our inability to promptly obtain coverage and profitable reimbursement rates from both government-funded and private payors for any approved products that we develop could have a material adverse effect on our operating results, our ability to raise capital needed to commercialize products and our overall financial condition. Further, a majority of our current revenue is derived from federal healthcare program payors, including Medicare and Medicaid. Thus, changes in government reimbursement policies, government negotiation of the price of any of products, reductions in payments and/or our suspension or exclusion from participation in federal healthcare programs could have a material adverse effect on our business.
 Further, the use of physician telehealth services has continued to increase, fueled by an unprecedented expansion of coverage and reimbursement for telehealth services across public and private insurers. The limitations that telehealth places on the ability to conduct a thorough physical examination may impact the ability of providers to screen for tardive dyskinesia or chorea associated with Huntington's disease, leading to fewer patients being diagnosed and/or treated.

 Outside the U.S., reimbursement and healthcare payment systems vary significantly by country, and many countries have instituted price ceilings on specific products and therapies. The EU provides options for EU Member States to restrict the range of medicinal products for which their national health insurance systems provide reimbursement and to control the prices of medicinal products for human use. An EU Member State may approve a specific price for the medicinal product, it may refuse to reimburse a product at the price set by the manufacturer or it may instead adopt a system of direct or indirect controls on the profitability of the company placing the medicinal product on the market.
 To obtain reimbursement for our products in some European countries, including some EU Member States, we may be required to compile additional data comparing the cost-effectiveness of our products to other available therapies. The Health Technology Assessment (HTA) of medicinal products is becoming an increasingly common part of the pricing and reimbursement procedures in some EU Member States, including those representing the larger markets. The extent to which pricing and reimbursement decisions are influenced by the HTA of the specific medicinal product currently varies between EU Member States. If we are unable to obtain favorable pricing and reimbursement status in EU Member States for product candidates that we may successfully develop and for which we may obtain regulatory approval, any anticipated revenue from and growth prospects for those products in the EU could be negatively affected.
 Legislators, policymakers, and payors may continue to propose and implement cost-containing measures to keep healthcare costs down. These measures could include limitations on the prices we would be able to charge for product candidates that we may successfully develop and for which we may obtain regulatory approval or the level of reimbursement available for these products from governmental authorities or third-party payors. Further, an increasing number of countries use prices for medicinal products established in other countries as "reference prices" to help determine the price of the product in their own territory. Consequently, a downward trend in prices of medicinal products in some countries could contribute to similar downward trends elsewhere, including in the U.S.
 Because the development of our product candidates is subject to a substantial degree of technological uncertainty, we may not succeed in developing any of our product candidates.
 Only a small number of research and development programs ultimately result in commercially successful drugs.
 Potential products that appear to be promising at early stages of development may not reach the market for a number of reasons. These reasons include the possibilities that the potential products may:
 • be found ineffective or cause harmful side effects during preclinical studies or clinical trials;
 • fail to receive necessary regulatory approvals on a timely basis or at all;
 • be precluded from commercialization by proprietary rights of third parties;
 • be difficult to manufacture on a large scale; or
 • be uneconomical to commercialize or fail to achieve market acceptance.
 If any of our product candidates encounters any of these potential problems, we may never successfully market that product candidate.
 Our clinical trials may be delayed for safety or other reasons, or fail to demonstrate the safety and efficacy of our product candidates, which could prevent or significantly delay their regulatory approval.
 Before obtaining regulatory approval for the sale of any of our potential products, we must subject these product candidates to extensive preclinical and clinical testing to demonstrate their safety and efficacy for humans. Clinical trials are expensive, time consuming and may take years to complete and the outcomes are uncertain.
 In connection with the clinical trials of our product candidates, we face the risks that:
 • the FDA or similar foreign regulatory authority may not allow an IND or foreign equivalent filings required to initiate human clinical studies for our drug candidates or the FDA or similar foreign regulatory authorities may require additional preclinical studies as a condition of the initiation of Phase 1 clinical studies, or additional clinical studies for progression from Phase 1 to Phase 2, or Phase 2 to Phase 3, or for NDA approval;
 • the product candidate may not prove to be effective or as effective as other competing product candidates;
 • we may discover that a product candidate may cause harmful side effects or results of required toxicology or other studies may not be acceptable to the FDA or similar foreign regulatory authorities;

 • clinical trial results may not replicate the results of previous trials;
 • we or the FDA or similar foreign regulatory authorities may suspend or vary the trials;
 • the results may not be statistically significant;
 • clinical site initiation or patient recruitment and enrollment may be slower or more difficult than expected;
 • the FDA or similar foreign regulatory authorities may not accept the data from any trial or trial site outside of the U.S.;
 • a study is compromised due to patients dropping out and not completing the trials;
 • unforeseen disruptions or delays may occur, caused by man-made or natural disasters, public health pandemics or epidemics, armed conflicts, trade restrictions or other business interruptions; and
 • regulatory requirements may change.
 These risks and uncertainties impact all of our clinical programs and any of the clinical, regulatory or operational events described above could change our planned clinical and regulatory activities. Geopolitical tensions could also affect our ability to obtain supplies of our investigational products, which could cause delays or otherwise disrupt our clinical trials and research and development efforts. Some of our suppliers and research collaborators are located in China, exposing us to the possibility of supply disruption in the event of changes to the laws, rules, regulations, and policies of the governments of the U.S. or China. Any such changes to laws or the adoption of tariffs or other restrictions could impact our ability to contract with certain Chinese biotechnology companies, cause delays, or have other adverse effects on the development of certain of our research programs.
 In addition, late-stage clinical trials are often conducted with patients having the most advanced stages of disease. During the course of treatment, these patients can die or suffer other adverse medical effects for reasons that may not be related to the pharmaceutical agent being tested but which can nevertheless adversely affect clinical trial conduct, completion and results. Any failure or substantial delay in completing clinical trials for our product candidates may severely harm our business.
 Even if the clinical trials are successfully completed, we cannot guarantee that the FDA or similar foreign regulatory authorities will interpret the results as we do, and more trials could be required before we submit our product candidates for approval. The FDA and similar foreign regulatory authorities have substantial discretion in the approval process and may either refuse to accept an application for substantive review or may form the opinion after review of an application that the application is insufficient to allow approval of a product candidate. To the extent that the FDA or similar foreign regulatory authorities do not accept our application for review or approve our application, we may be required to expend significant additional resources, which may not be available to us, to conduct additional trials in support of potential approval of our product candidates. Depending on the extent of these additional trials or any other studies that might be required, approval of any applications that we submit may be significantly delayed. It is also possible that any such additional studies, if performed and completed, may not be considered sufficient by the FDA or similar foreign regulatory authorities and we may be forced to delay or abandon our applications for approval.
 We have increased the size of our organization and will need to continue to increase the size of our organization. We may encounter difficulties with managing our growth, which could adversely affect our results of operations.
 Since 2017, our number of full-time employees has grown from approximately 200 to 1,800 as of December 31, 2024. Although we have substantially increased the size of our organization, we may need to add additional qualified personnel and resources, especially with the recent increase in the size of our sales force. Our current infrastructure may be inadequate to support our development and commercialization efforts and expected growth. Future growth will impose significant added responsibilities on our organization, including the need to identify, recruit, maintain and integrate additional employees and implement and expand managerial, operational and financial systems and may be costly and take time away from running other aspects of our business, including development and commercialization of our product candidates. For example, we implemented a new company-wide enterprise resource planning (ERP) system in 2024 to streamline certain existing business, operational, and financial processes. This project has required and may continue to require investment of capital and human resources, the re-engineering of processes of our business, and the attention of many employees who would otherwise be focused on other aspects of our business. Any deficiencies in the design of the ERP system could adversely affect the effectiveness of our internal control over financial reporting or our ability to accurately maintain our books and

 records, provide accurate, timely and reliable reports on our financial and operating results, or otherwise operate our business. Any of these consequences could have an adverse effect on our results of operations and financial condition.
 Our future financial performance and our ability to commercialize INGREZZA, CRENESSITY, or any of our product candidates that receive regulatory approval in the future, will partially depend on our ability to manage any future growth effectively. In particular, as we commercialize INGREZZA and CRENESSITY, we will need to support the training and ongoing activities of our sales force and will likely need to continue to expand the size of our employee base for managerial, operational, financial and other resources. To that end, we must be able to successfully:
 • manage our development efforts effectively;
 • integrate additional management, administrative and manufacturing personnel;
 • further develop our marketing and sales organization;
 • compensate our employees on adequate terms in an increasingly competitive, inflationary market;
 • attract and retain personnel; and
 • maintain sufficient administrative, accounting and management information systems and controls.
 We may not be able to accomplish these tasks or successfully manage our operations and, accordingly, may not achieve our research, development and commercialization goals. Our failure to accomplish any of these goals could harm our financial results and prospects.
 We are transforming our research and development strategies to include the development of biologics, which requires substantial investment, including in personnel and facilities. We may encounter difficulties as we expand and may fail to successfully develop or commercialize our biologic product candidates, which could adversely affect our results of operations.
 We are transforming our research and development strategies to include the development of biologics, including peptides, antibodies and gene therapies. As a company, we do not have experience successfully developing and commercializing biologics and our current infrastructure may be inadequate to support the expected growth and transformation of processes, personnel, and technologies required for these new programs. We have hired employees with expertise in these modalities, but we will need to hire additional qualified personnel and expand our management, administrative, and manufacturing functions to support the research and development organization. If we are unable to identify, recruit and integrate additional employees with the requisite skills, or effectively manage our transformation activities, the development of our biologic product candidates may not be successful, or be delayed or paused indefinitely. Additionally, the manufacture of biologics is more complex than the manufacture of small molecule therapies. We may encounter delays in production and delivery of our biologic product candidates by our third-party manufacturers or other vendors, which would result in corresponding delays to our development and commercialization of such biologic candidates. In addition, the regulatory requirements in the United States and in other countries governing biologics are evolving and the FDA or comparable foreign regulatory authorities may change the requirements, or identify different regulatory pathways, for approval for any of our biologic candidates. As a result, we may be required to change our regulatory strategy or to modify our applications for regulatory approval, which could delay and impair our ability to complete the preclinical and clinical development and manufacture of, and obtain regulatory approval for, our biologic candidates. We have made, and expect to continue making, substantial investments in our research and development personnel and facilities, as well in external innovation to support our expansion into the development of our biologics. If any of these risks occur and we fail to successfully develop or commercialize our biologic product candidates, we may not realize a return on our investments which could have an adverse effect on our results of operations and financial condition.

 If we are unable to retain and recruit qualified scientists and other employees or if any of our key senior executives discontinues his or her employment with us, it may delay our development efforts or impact our commercialization of INGREZZA, CRENESSITY, or any product candidate approved by the FDA in the future.
 We are highly dependent on the principal members of our management, commercial and scientific staff. The loss of any of these people could impede the achievement of our objectives, including the successful commercialization of INGREZZA, the launch of CRENESSITY, or the commercialization of any product candidate approved by the FDA in the future. Furthermore, recruiting and retaining qualified scientific personnel to perform research and development work in the future, along with personnel with experience marketing and selling pharmaceutical products, is critical to our success. We may be unable to attract and retain personnel on acceptable terms given the competition among biotechnology, pharmaceutical and healthcare companies, universities and non-profit research institutions for experienced scientists and individuals with experience marketing and selling pharmaceutical products. We may face particular retention challenges in light of the recent rapid growth in our personnel and infrastructure and the perceived impact of those changes upon our corporate culture. In addition, we rely on a significant number of consultants to assist us in formulating our research and development strategy and our commercialization strategy. Our consultants may have commitments to, or advisory or consulting agreements with, other entities that may limit their availability to us.
 On October 11, 2024, Kevin Gorman, Ph. D., retired as the Company's President and Chief Executive Officer and Kyle Gano, Ph. D., formerly our Chief Business Development and Strategy Officer, succeeded Dr. Gorman in the CEO role. Dr. Gano also joined our Board of Directors effective as of October 11, 2024. Dr. Gorman founded Neurocrine in 1992 and has held numerous positions across the Company, including Chief Operating Officer, Chief Business Officer, and Senior Vice President of Business Development, before being appointed CEO in 2008. Dr. Gano was appointed Neurocrine's Chief Business Development Officer in 2011, and Chief Business Development and Strategy Officer in 2020, and is responsible for all of Neurocrine's business and corporate development activities. Our Board of Directors worked closely with Dr. Gorman on succession planning and believes Dr. Gano and the senior leadership team are well-positioned to continue to execute our strategy. Although Dr. Gorman will continue to serve on our Board of Directors and provide strategic direction to the Company, this leadership transition may be viewed negatively by investors, our strategic partners, or other stakeholders. Further, if the transition is not managed effectively, it could disrupt our operations and impact our financial condition and results.
 Use of our approved products or those of our collaborators could be associated with side effects or adverse events.
 As with most pharmaceutical products, use of our approved products or those of our collaborators could be associated with side effects or adverse events which can vary in severity (from minor adverse reactions to death) and frequency (infrequent or prevalent). Side effects or adverse events associated with the use of our products or those of our collaborators may be observed at any time, including after a product is commercialized, and reports of any such side effects or adverse events may negatively impact demand for our or our collaborators' products or affect our or our collaborators' ability to maintain regulatory approval for such products. Side effects or other safety issues associated with the use of our approved products or those of our collaborators could require us or our collaborators to modify or halt commercialization of these products or expose us to product liability lawsuits which will harm our business. We or our collaborators may be required by regulatory agencies to conduct additional studies regarding the safety and efficacy of our products which we have not planned or anticipated. Furthermore, there can be no assurance that we or our collaborators will resolve any issues related to any product related adverse events to the satisfaction of the FDA or any regulatory agency in a timely manner or ever, which could harm our business, prospects and financial condition.

 We currently depend on a limited number of third-party suppliers. The loss of these suppliers, or delays or problems in the supply of INGREZZA, CRENESSITY, or our product candidates, could materially and adversely affect our ability to successfully develop or commercialize INGREZZA, CRENESSITY, or any of our product candidates.
 The manufacture of pharmaceutical products requires significant expertise and capital investment, including the development of process controls required to consistently produce the active pharmaceutical ingredients (API), the finished drug product and packaging in sufficient quantities while meeting detailed product specifications on a repeated basis. Manufacturers of pharmaceutical products may encounter difficulties in production, such as difficulties with production costs and yields, process controls and validation, quality control and quality assurance, including testing of stability, impurities and impurity levels and other product specifications by validated test methods, compliance with strictly enforced U.S., state and non-U.S. regulations, and disruptions or delays caused by man-made or natural disasters, public health pandemics or epidemics, armed conflicts, trade restrictions, or other business interruptions. We depend on a limited number of suppliers for the production (including API) of INGREZZA, CRENESSITY and our product candidates and for the packaging of INGREZZA and CRENESSITY. If our third-party suppliers for INGREZZA, CRENESSITY, or any of our product candidates encounter these or any other manufacturing, quality or compliance difficulties, our ability to successfully develop or commercialize INGREZZA, CRENESSITY, or any of our product candidates could be materially and adversely affected.
 In addition, if our suppliers fail or refuse to supply us with INGREZZA, CRENESSITY, or any of our product candidates, or their APIs for any reason, or terminate our supply agreements or do not perform as agreed, it would take a significant amount of time and expense to qualify a new supplier. The FDA and similar foreign regulatory authorities must approve manufacturers of the active and inactive pharmaceutical ingredients and certain packaging materials used in pharmaceutical products. The loss of a supplier could require us to obtain regulatory clearance and to incur validation and other costs associated with the transfer of the API or product manufacturing processes. If there are delays in qualifying new suppliers or facilities or if a new supplier is unable to meet FDA or a similar foreign regulatory authority's requirements for approval, there could be a shortage of INGREZZA, CRENESSITY, or any of our product candidates, which could materially and adversely affect our ability to successfully develop or commercialize INGREZZA, CRENESSITY, or any of our product candidates.
 We currently have no manufacturing capabilities. If third-party manufacturers of INGREZZA, CRENESSITY, or any of our product candidates fail to devote sufficient time and resources to our concerns, or if their performance is substandard, our ability to commercialize existing products, conduct clinical trials and develop new products could be impaired and our costs may rise.
 We have in the past utilized, and intend to continue to utilize, third-party manufacturers to produce the drug compounds we use in our clinical trials and for the commercialization of our products. We have limited experience in manufacturing products for commercial purposes and do not currently have any manufacturing facilities. Establishing internal commercial manufacturing capabilities would require significant time and resources, and we may not be able to timely or successfully establish such capabilities. Consequently, we depend on, and will continue to depend on, several contract manufacturers for all production of products for development and commercial purposes, including INGREZZA and CRENESSITY. If we are unable to obtain or retain third-party manufacturers, we will not be able to develop or commercialize our products, including INGREZZA and CRENESSITY. The manufacture of our products for clinical trials and commercial purposes is subject to specific FDA and equivalent foreign regulations, including current Good Manufacturing Practice regulations. Our third-party manufacturers might not comply with FDA or equivalent foreign regulations relating to manufacturing our products for clinical trials and commercial purposes or other regulatory requirements now or in the future. Our reliance on contract manufacturers also exposes us to the following risks:
 • contract manufacturers may encounter difficulties in achieving volume production, quality control or quality assurance, and also may experience shortages in qualified personnel or materials and ingredients necessary to conduct their operations. As a result, our contract manufacturers might not be able to meet our clinical schedules or adequately manufacture our products in commercial quantities when required;

 • switching manufacturers may be difficult because the number of potential manufacturers is limited. It may be difficult or impossible for us to find a replacement manufacturer quickly on acceptable terms, or at all;
 • our contract manufacturers may not perform as agreed or may not remain in the contract manufacturing business for the time required to successfully produce, store or distribute our products; and
 • drug manufacturers are subject to ongoing periodic unannounced inspection by the FDA, the U.S. Drug Enforcement Administration, equivalent foreign regulatory authorities, and other agencies to ensure strict compliance with cGMP and other government regulations and corresponding foreign standards. Any delay, interruption, or other issue that arises in the manufacture of our products or product candidates as a result of a failure of a third-party manufacturer to pass regulatory inspections or maintain cGMP compliance could significantly impair our ability to develop, obtain approval for, or successfully commercialize our products.
 Our current dependence upon third parties for the manufacture of our products may reduce our profit margin, if any, on the sale of INGREZZA, CRENESSITY, or our future products and our ability to develop and deliver products on a timely and competitive basis.
 We depend on our current collaborators for the development and commercialization of several of our products and product candidates and may need to enter into future collaborations to develop and commercialize certain of our product candidates.
 We depend on our current collaborators for the development and commercialization of several of our products and product candidates and may need to enter into future collaborations to develop and commercialize certain of our product candidates. For example, we depend on AbbVie for the manufacture and commercialization of ORILISSA and ORIAHNN and for the continued development of elagolix. We collaborate with MTPC for the commercialization of DYSVAL in Japan and for the continued development and commercialization of valbenazine for movement disorders in other select Asian markets. Some of our other collaborators include Nxera Pharma UK Limited (formerly Sosei Heptares), Takeda Pharmaceutical Company Limited, Voyager Therapeutics, Inc., and Xenon Pharmaceuticals, Inc.
 Our current and future collaborations and licenses could subject us to a number of risks, including:
 • strategic collaborators may sell, transfer or divest assets or programs related to our partnered product or product candidates;
 • we may be required to undertake the expenditure of substantial operational, financial and management resources;
 • we may be required to assume substantial actual or contingent liabilities;
 • we may not be able to control the amount and timing of resources that our strategic collaborators devote to the development or commercialization of our products or product candidates;
 • we may not be able to influence our strategic collaborator's decisions regarding the development and collaboration of our partnered product and product candidates, and as a result, our collaboration partners may not pursue or prioritize the development and commercialization of those partnered products and product candidates in a manner that is in our best interest;
 • strategic collaborators may select indications or design clinical trials in a way that may be less successful than if we were doing so;
 • strategic collaborators may not conduct collaborative activities in a timely manner, provide insufficient funding, terminate a clinical trial or abandon a product candidate, repeat or conduct new clinical trials or require a new version of a product candidate for clinical testing;
 • strategic collaborators may not pursue further development and commercialization of products resulting from the strategic collaboration arrangement or may elect to discontinue research and development programs;
 • disagreements or disputes may arise between us and our strategic collaborators that result in delays or in costly litigation or arbitration that diverts management's attention and consumes resources;
 • strategic collaborators may experience financial difficulties;

 • strategic collaborators may not properly maintain, enforce or defend our intellectual property rights or may use our proprietary information in a manner that could jeopardize or invalidate our proprietary information or expose us to potential litigation;
 • we or strategic collaborators could terminate the arrangement (in whole or in part) or allow it to expire, which would delay the development and commercialization, result in disagreements or disputes or may increase the cost of developing and commercializing our products or product candidates;
 • strategic collaborators could develop, either alone or with others, products or product candidates that may compete with ours; and
 • our strategic collaborator's decisions regarding the development and commercialization of a partnered product or product candidate within their territory(ies) could negatively impact us in the territories where we have development and commercialization rights for such product or product candidate.
 If any of these issues arise, it may delay and/or negatively impact the development and commercialization of drug candidates and, ultimately, our generation of product revenues.
 We license some of our core technologies and drug candidates from third parties. If we default on any of our obligations under those licenses, or violate the terms of these licenses, we could lose our rights to those technologies and drug candidates or be forced to pay damages.
 We are dependent on licenses from third parties for some of our key technologies. These licenses typically subject us to various commercialization, reporting and other obligations. If we fail to comply with these obligations, we could lose important rights. If we were to default on our obligations under any of our licenses, we could lose some or all of our rights to develop, market and sell products covered by these licenses. In addition, several of our collaboration and license agreements allow our licensors to terminate such agreements if we challenge the validity or enforceability of certain intellectual property rights or if we commit a material breach in whole or in part of the agreement and do not cure such breach within the agreed upon cure period. In addition, if we were to violate any of the terms of our licenses, we could become subject to damages. Likewise, if we were to lose our rights under a license to use proprietary research tools, it could adversely affect our existing collaborations or adversely affect our ability to form new collaborations. We also face the risk that our licensors could, for a number of reasons, lose patent protection or lose their rights to the technologies we have licensed, thereby impairing or extinguishing our rights under our licenses with them.
 Our customers are concentrated and therefore the loss of a significant customer may harm our business.
 We have entered into agreements for the distribution of INGREZZA with a limited number of specialty pharmacy providers and distributors. Four of these customers represented approximately 93% of our total product sales for 2024 and approximately 98% of our accounts receivable balance as of December 31, 2024. In addition, CRENESSITY is distributed by one specialty pharmacy provider. If any of our significant customers becomes subject to bankruptcy, is unable to pay us for our products or wants to terminate their relationship with us, or if we otherwise lose any of these significant customers, our revenue, results of operations and cash flows would be adversely affected. Also, we may need to enter into agreements with additional distributors or specialty pharmacy providers, and there is no guarantee that we will be able to do so on commercially reasonable terms or at all. Even if we replace the loss of a significant customer, we cannot predict with certainty that such transition would not result in a decline in our revenue, results of operations and cash flows.
 We may need additional capital in the future. If we cannot raise additional funding, we may be unable to fund our business plan and our future research, development, commercial and manufacturing efforts.
 Our future funding requirements will depend on many factors and we may need to raise additional capital to fund our business plan and our future research, development, commercial and manufacturing efforts.
 Our future capital requirements will depend on many factors, including:
 • the commercial success of INGREZZA and CRENESSITY;
 • the cost of commercialization activities and arrangements, including advertising campaigns;
 • continued scientific progress in our R&D and clinical development programs;
 • the magnitude and complexity of our research and development programs;

 • progress with preclinical testing and clinical trials;
 • the time and costs involved in obtaining regulatory approvals;
 • the cost involved in filing and pursuing patent applications, enforcing patent claims, or engaging in interference proceedings or other patent litigation;
 • costs associated with securing adequate coverage and reimbursement for our products;
 • competing technological and market developments;
 • developments related to any future litigation;
 • the cost of manufacturing our product candidates;
 • the impact of pandemics or epidemics on our business; and
 • the cost of any strategic alliances, collaborations, product in-licensing, or acquisitions.
 We may seek additional funding through public or private sales of our securities, including equity securities. In addition, we have previously financed capital purchases and may continue to pursue opportunities to obtain debt financing in the future. Additional equity or debt financing might not be available on reasonable terms, if at all. Any additional equity financings will be dilutive to our stockholders and any debt financings may involve operating covenants that restrict our business.
 We expect to increase our expenses for the foreseeable future, and we may not be able to sustain growth and profitability.
 We received FDA approval for INGREZZA for tardive dyskinesia in April 2017 and for chorea associated with Huntington's disease in August 2023. We received FDA approval for CRENESSITY capsules and oral solution as an adjunctive treatment to glucocorticoid replacement to control androgens in adult and pediatric patients four years of age and older with classic CAH in December 2024. Our partner AbbVie received FDA approval for ORILISSA for endometriosis in July 2018 and for ORIAHNN for uterine fibroids in May 2020. Additionally, our partner MTPC received Japanese Ministry of Health, Labour, and Welfare approval for DYSVAL for the treatment of tardive dyskinesia in March 2022. However, we have not yet obtained regulatory approvals for any other product candidates. Even if we continue to succeed in commercializing INGREZZA, or are successful in commercializing CRENESSITY or any of our product candidates, we may not be able to sustain profitability. We also expect to continue to incur significant operating and capital expenditures as we:
 • commercialize INGREZZA for tardive dyskinesia and chorea associated with Huntington's disease;
 • commercially launch CRENESSITY as an adjunctive treatment to glucocorticoid replacement to control androgens in adult and pediatric patients four years of age and older with classic CAH;
 • seek regulatory approvals for our product candidates or for additional indications for our current products;
 • develop, formulate, manufacture and commercialize our product candidates;
 • in-license or acquire new product development opportunities;
 • implement additional internal systems and infrastructure; and
 • hire additional clinical, scientific, sales, marketing and administrative personnel.
 We expect to increase our expenses and other investments in the coming years as we fund our operations and capital expenditures. Thus, our future operating results and profitability may fluctuate from period to period due to the factors described above, and we will need to generate significant revenues to achieve and maintain profitability and positive cash flow on a sustained basis. We may not be able to generate these revenues, and we may never achieve profitability on a sustained basis in the future. In addition, there is no guarantee that our prioritization determinations regarding our R&D and clinical development programs, including the acceleration or discontinuation of certain programs and product candidates, will generate their expected benefits and/or meet investor expectations. Our prioritization decisions may also adversely affect other internal programs and initiatives as well as our ability to recruit and retain skilled and motivated personnel. Our failure to maintain or increase profitability on a sustained basis could negatively impact the market price of our common stock.

 The independent clinical investigators and contract research organizations that we rely upon to conduct our clinical trials may not be diligent, careful or timely, or may make mistakes in the conduct of our trials.
 We depend on independent clinical investigators and CROs to conduct our clinical trials under their agreements with us. The investigators are not our employees, and we cannot control the amount or timing of resources that they devote to our programs. If our independent investigators fail to devote sufficient time and resources to our drug development programs, or if their performance is substandard, or not in compliance with GCPs, it may delay or prevent the approval of our regulatory applications and our introduction of new treatments. The CROs we contract with for execution of our clinical trials play a significant role in the conduct of the trials and the subsequent collection and analysis of data. Failure of the CROs to meet their obligations could adversely affect clinical development of our products. Moreover, these independent investigators and CROs may also have relationships with other commercial entities, some of which may compete with us. If independent investigators and CROs assist our competitors at our expense, it could harm our competitive position.
 We are subject to ongoing obligations and continued regulatory review for INGREZZA and CRENESSITY. Additionally, our product candidates, if approved, could be subject to labeling and other post-marketing requirements and restrictions.
 Regulatory approvals for any of our product candidates may be subject to limitations on the approved indicated uses for which the product may be marketed or to the conditions of approval, or contain requirements for potentially costly post-marketing testing, including Phase 4 clinical trials, and surveillance to monitor the safety and efficacy of the product candidate. For INGREZZA, CRENESSITY, and any product candidate that the FDA or a comparable foreign regulatory authority approves, the manufacturing processes, labeling, packaging, distribution, adverse event reporting, storage, advertising, promotion and recordkeeping for the product is subject to extensive and ongoing regulatory requirements. These requirements include submissions of safety and other post-marketing information and reports, registration, as well as continued compliance with GCPs for any clinical trials that we conduct post-approval. In addition, advertising and promotional materials for approved products must comply with FDA regulations and those of foreign regulatory authorities and may be subject to other potentially applicable federal and state laws.
 Failure to comply with these ongoing regulatory requirements, or later discovery of previously unknown problems with a product, including adverse events of unanticipated severity or frequency, or with our third-party manufacturers or manufacturing processes, may result in, among other things:
 • restrictions on the marketing or manufacturing of the product, changes in the product's label, withdrawal of the product from the market, or voluntary or mandatory product recalls;
 • fines, warning or untitled letters or holds on clinical trials;
 • refusal by the FDA or similar foreign regulatory authorities to approve pending applications or supplements to approved applications filed by us, or suspension or revocation of product license approvals;
 • adverse inspection findings, enforcement actions, or other activities that temporarily delay manufacture and distribution of our products;
 • product seizure or detention, or refusal to permit the import or export of products; and
 • product injunctions or the imposition of civil or criminal penalties.
 The occurrence of any of these events may adversely affect our business, prospects and ability to achieve or sustain profitability on a sustained basis.
 The U.S. Supreme Court's June 2024 decision in Loper Bright Enterprises v. Raimondo overturned the longstanding Chevron doctrine, under which courts were required to give deference to regulatory agencies' reasonable interpretations of ambiguous federal statutes. The Loper decision could result in additional legal challenges to regulations and guidance issued by federal agencies, including the FDA, on which we rely. Any such legal challenges, if successful, could have a material impact on our business. Additionally, the Loper decision may result in increased regulatory uncertainty, inconsistent judicial interpretations, and other impacts to the agency rulemaking process, any of which could adversely impact our business and operations. We cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation or administrative action or as a result of legal challenges, either in the United States or abroad. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to maintain regulatory compliance, our business could be materially harmed.

 If the market opportunities for our products and product candidates are smaller than we believe they are, our expected revenues may be adversely affected, and our business may suffer.
 Certain of the diseases that INGREZZA, CRENESSITY, and our product candidates are being developed to address are in underserved and underdiagnosed populations. Our projections of both the number of people who have these diseases, as well as the subset of people with these diseases who will seek treatment utilizing our products or product candidates, may not be accurate. If our estimates of the prevalence or number of patients potentially on therapy prove to be inaccurate, the market opportunities for INGREZZA, CRENESSITY, and our product candidates may be smaller than we believe they are, our prospects for generating expected revenue may be adversely affected and our business may suffer.
 Because our operating results may vary significantly in future periods, our stock price may decline.
 Our quarterly revenues, expenses and operating results have fluctuated in the past and are likely to fluctuate significantly in the future. Our financial results are unpredictable and may fluctuate, for among other reasons, due to seasonality and timing of customer purchases and commercial sales of INGREZZA and CRENESSITY, royalties from out-licensed products, the impact of Medicare Part D coverage, including redesign of the Part D benefit enacted as part of the Inflation Reduction Act, our achievement of product development objectives and milestones, clinical trial enrollment and expenses, research and development expenses and the timing and nature of contract manufacturing, contract research payments, fluctuations in our effective tax rate, disruptions caused by man-made or natural disasters, public health pandemics or epidemics, armed conflicts, trade restrictions, or other business interruptions. Because a majority of our costs are predetermined on an annual basis, due in part to our significant research and development costs, small declines in revenue could disproportionately affect financial results in a quarter. Thus, our future operating results and profitability may fluctuate from period to period, and even if we become profitable on a quarterly or annual basis, we may not be able to sustain or increase our profitability. Moreover, as our company and our market capitalization have grown, our financial performance has become increasingly subject to quarterly and annual comparisons with the expectations of securities analysts or investors. The failure of our financial results to meet these expectations, either in a single quarterly or annual period over a sustained period time, could cause our stock price to decline.
 Changes in tax laws or regulations that are applied adversely to us or our customers may have a material adverse effect on our business, cash flows, financial condition or results of operations.
 New tax laws or regulations could be enacted at any time, and existing tax laws or regulations could be interpreted, modified or applied in a manner that is adverse to us or our customers, which could adversely affect our business and financial condition. For example, the Tax Cuts and Jobs Act of 2017, the Coronavirus Aid, Relief, and Economic Security Act and the Inflation Reduction Act enacted many significant changes to the U.S. tax laws. Among other changes, the Tax Cuts and Jobs Act eliminated the option to deduct research and development expenses for tax purposes in the year incurred and requires taxpayers to capitalize and subsequently amortize such expenses over five years for research activities conducted in the U.S. and over 15 years for research activities conducted outside the U.S. If the requirement to amortize research and development expenditures is not repealed or otherwise modified, it will continue to have an adverse effect on our tax liability. Furthermore, our tax obligations and effective tax rate in the jurisdictions in which we conduct business could increase as a result of international tax developments, including the implementation of the Organization for Economic Co-operation and Development's (OECD) Base Erosion and Profit Shifting "Two-Pillar" framework, which involves the reallocation of taxing rights in respect of certain multinational enterprises above a fixed profit margin to the jurisdictions in which they carry on business (referred to as Pillar One) and the imposition of a minimum effective corporate tax rate (referred to as Pillar Two). Certain countries in which we conduct business have enacted, or are in the process of enacting, core provisions of the Pillar Two rules. We continue to evaluate and assess the potential impact of these new rules, including on our effective tax rate, and our eligibility to qualify for transition and safe harbor. Any changes in tax laws, including any new tax legislation or initiatives, could not only significantly increase our tax provision, cash tax liabilities, and effective tax rate, but could also have a material impact on the value of our deferred tax assets, result in significant one-time charges and ongoing compliance costs, and increase our future tax expense.

 Our effective tax rate may fluctuate, and we may incur obligations in tax jurisdictions in excess of accrued amounts.
 We have a multinational tax structure and are subject to income tax in the U.S. and various foreign jurisdictions, including the United Kingdom and Switzerland. Our effective tax rate is influenced by many factors including changes in our operating structure, changes in the mix of our earnings among countries, our allocation of profits and losses among our subsidiaries, our intercompany transfer pricing agreements and rules relating to transfer pricing, our inability to secure or sustain acceptable agreements with tax authorities, the impact of stock-based compensation, the availability of U.S. research and development tax credits, the results of examinations and audits of our tax filings, changes in accounting for income taxes, and future changes in tax laws and regulations in the U.S. and foreign countries. Significant judgment is required in determining our tax liabilities including management's judgment for uncertain tax positions. The Internal Revenue Service, other domestic taxing authorities, or foreign taxing authorities may disagree with our interpretation of tax laws as applied to our operations. Our reported effective tax rate and after-tax cash flows may be materially and adversely affected by tax assessments in excess of amounts accrued for our financial statements. This could cause us to experience an effective tax rate significantly different from previous periods or our current expectations.
 The price of our common stock is volatile.
 The market prices for securities of biotechnology and pharmaceutical companies historically have been highly volatile, and the market for these securities has from time to time experienced significant price and volume fluctuations that are unrelated to the operating performance of particular companies. For example, the applicability of the Medicare drug price negotiation provisions in the Inflation Reduction Act negatively affected investor sentiment and resulted in significant volatility. Furthermore, especially as we and our market capitalization have grown, the price of our common stock has been increasingly affected by quarterly and annual comparisons with the valuations and recommendations of the analysts who cover our business. If our results do not meet these analysts' forecasts, the expectations of our investors or the financial guidance we provide to investors in any period, which is based on assumptions that may be incorrect or that may change from quarter to quarter, the market price of our common stock could decline. Over the course of the last 12 months, the price of our common stock has ranged from approximately $111 per share to approximately $158 per share.
 The market price of our common stock may fluctuate in response to many factors, including:
 • sales of INGREZZA and CRENESSITY;
 • failure of CRENESSITY to achieve commercial success;
 • the results of our clinical trials;
 • reports of safety issues related to INGREZZA or CRENESSITY;
 • any delay in filing an IND, NDA, marketing authorization application (MAA), or other regulatory submission for any of our product candidates and any adverse development or perceived adverse development with respect to the applicable regulatory agency's review of that IND, NDA, MAA, or other regulatory submission;
 • developments concerning new and existing collaboration agreements;
 • announcements of technological innovations or new therapeutic products by us or others, including our competitors;
 • general economic and market conditions, including economic and market conditions affecting the biotechnology industry;
 • developments in patent or other proprietary rights;
 • developments related to the FDA, CMS and foreign regulatory agencies;
 • government regulation, including the Inflation Reduction Act;
 • future sales of our common stock by us or our stockholders;
 • any trading activity pursuant to a share repurchase program;
 • comments by securities analysts;
 • additions or departures of key personnel;

 • fluctuations in our operating results;
 • potential litigation matters;
 • government and third-party payor coverage and reimbursement;
 • failure of any of our product candidates to achieve commercial success even if approved;
 • disruptions caused by man-made or natural disasters, public health pandemics or epidemics, armed conflicts, trade restrictions, or other business interruptions; and
 • public concern as to the safety of our drugs.
 In addition, we are a member of the S&P MidCap 400 index. If we cease to be represented in the S&P MidCap 400 index, or other indexes or indexed products, as a result of our market capitalization falling below the threshold for inclusion in the index, certain institutional shareholders may, due to their internal policies and investment guidelines, be required to sell their shareholdings. Such sales may result in further negative pressure on our stock price and, when combined with reduced trading volume and liquidity, could adversely affect the value of your investment and your ability to sell your shares.
 There can be no assurance that any share repurchases will enhance long-term stockholder value.
 In October 2024, our Board of Directors authorized a share repurchase program to repurchase up to $300 million of our common stock and we subsequently entered into an accelerated share repurchase (ASR) transaction to repurchase the entirety of this authorized amount. The purchase period for this ASR transaction ended in February 2025 and an aggregate of 2.3 million shares were delivered to us at an average repurchase price of $131.83 per share. We can provide no assurance that this or future share repurchases will enhance long-term stockholder value, and it may not prove to be the best use of our cash. If our Board of Directors authorizes any additional stock repurchase programs it could affect the trading price of our stock and increase volatility.
 Compliance with changing regulation of corporate governance and public disclosure may result in additional expenses.
 Changing laws, regulations and standards relating to corporate governance and public disclosure, including the Dodd-Frank Wall Street Reform and Consumer Protection Act, new SEC regulations and Nasdaq rules, are creating uncertainty for companies such as ours. These laws, regulations and standards are subject to varying interpretations in some cases due to their lack of specificity, and as a result, their application in practice may evolve over time as new guidance is provided by regulatory and governing bodies, which could result in continuing uncertainty regarding compliance matters and higher costs necessitated by ongoing revisions to disclosure and governance practices. We are committed to maintaining high standards of corporate governance and public disclosure. As a result, our efforts to comply with evolving laws, regulations and standards have resulted in, and are likely to continue to result in, increased selling, general and administrative expenses and management time related to compliance activities. If we fail to comply with these laws, regulations and standards, our reputation may be harmed and we might be subject to sanctions or investigation by regulatory authorities, such as the SEC. Any such action could adversely affect our financial results and the market price of our common stock.
 Increasing use of social media could give rise to liability and result in harm to our business.
 Our employees are increasingly utilizing social media tools and our website as a means of communication. Despite our efforts to monitor social media communications, there is risk that the unauthorized use of social media by our employees to communicate about our products or business, or any inadvertent disclosure of material, nonpublic information through these means, may result in violations of applicable laws and regulations, which may give rise to liability and result in harm to our business. In addition, there is also risk of inappropriate disclosure of sensitive information, which could result in significant legal and financial exposure and reputational damages that could potentially have a material adverse impact on our business, financial condition and results of operations. Furthermore, negative posts or comments about us or our products on social media could seriously damage our reputation, brand image and goodwill.

 We may be subject to claims that we or our employees have wrongfully used or disclosed alleged trade secrets of their former employers.
 As is commonplace in the biotechnology industry, we employ individuals who were previously employed at other biotechnology or pharmaceutical companies, including our competitors or potential competitors. Although no claims against us are currently pending, we may be subject to claims that these employees or we have inadvertently or otherwise used or disclosed trade secrets or other proprietary information of their former employers. Litigation may be necessary to defend against these claims. Even if we are successful in defending against these claims, litigation could result in substantial costs and be a distraction to management.
 Risks Related to Our Industry
 Enacted healthcare reform, drug pricing measures and other recent legislative initiatives, including the Inflation Reduction Act of 2022, could adversely affect our business.
 The business and financial condition of pharmaceutical and biotechnology companies are affected by the efforts of government and third-party payors to contain or reduce the costs of healthcare and to lower drug prices. In the U.S., comprehensive drug pricing legislation enacted by the Federal government implements, for the first time, government control over the pricing of certain prescription pharmaceuticals. Moreover, in some foreign jurisdictions, pricing of prescription pharmaceuticals is also subject to government control. Additionally, other federal and state laws impose obligations on manufacturers of pharmaceutical products, among others, related to disclosure of new drug products introduced to the market and increases in drug prices above a specified threshold.
 For example, the Inflation Reduction Act of 2022, or the IRA, provides for, among other things: (1) the Secretary of the HHS to negotiate the price of certain high-expenditure, single-source drugs and biologics covered under Medicare; (2) the redesign of the Medicare Part D prescription drug benefit to lower patient out-of-pocket costs and increase manufacturer liability; and (3) drug manufacturers to pay rebates on drugs whose prices increase greater than the rate of inflation. The IRA also extends enhanced subsidies for individuals purchasing health insurance coverage in the ACA marketplaces through plan year 2025 and in 2025, eliminated the "donut hole" under the Medicare Part D program and creates a new, permanent cap on beneficiary out-of-pocket spending for Part D drugs, in addition to a newly established manufacturer discount program. The IRA permits HHS to implement many of these provisions through guidance, as opposed to regulation, for the initial years. HHS has issued and updated and will continue to issue and update guidance as these programs are implemented. These provisions took effect progressively beginning in 2023. On August 15, 2024, HHS announced the negotiated prices of the first 10 drugs that were subject to price negotiations, although the Medicare drug price negotiation program is currently subject to legal challenges. On January 17, 2025, HHS announced its selection of fifteen additional drugs covered under Part D for negotiation in 2025 (for initial price applicability year 2027). Certain high-expenditure Part B and Part D drugs/biologics will be selected for negotiation in 2026 (for initial price applicability year 2028) and annually thereafter. While the Medicare drug price negotiation program targets high-expenditure drugs/biologics that have been on the market for several years without generic or biosimilar competition, we were notified in January 2025 that INGREZZA qualifies for the small biotech exception, which provides an exemption from selection until 2027 (for initial price applicability year 2029, pursuant to which negotiated pricing would go into effect, if selected).
 Additionally, on January 1, 2025, the Centers for Medicare & Medicaid Services (CMS) implemented those provisions of the IRA establishing a new Medicare Part D manufacturer discount program. Under this discount program and subject to certain exceptions, manufacturers must give a 10 percent discount on Part D program drugs in the initial coverage phase, and a 20 percent discount on Part D drugs when the beneficiary enters the catastrophic coverage phase (the phase after the patient incurs costs above the initial phase out-of-pocket threshold, which is $2,000). However, the IRA allows the 10 and 20 percent discounts to be phased in over a multi-year period for "specified manufacturers" and "specified small manufacturers". During this phase-in period, such manufacturers would pay a lower percentage discount on Medicare Part D program drugs. In April 2024, the Company was notified by CMS that it qualified as a "specified small manufacturer" and will receive the discount phase-in discussed above for INGREZZA. INGREZZA is reimbursed under Medicare Part D, and increased discounts could impact INGREZZA revenues, while also having an industry-wide impact on the cost of other Part D program drugs such as AUSTEDO and AUSTEDO XR, marketed by Teva Pharmaceuticals Industries. The overall impact on INGREZZA revenues is inherently uncertain and difficult to predict and we are still evaluating the potential impact of this discount program and our designation as a "specified small manufacturer."

 Our designation as a "specified small manufacturer" under the new Medicare Part D manufacturer discount program and INGREZZA's qualification for the small biotech exception for purposes of the Medicare drug price negotiation program are subject to various requirements and there is no assurance that we will continue to qualify for these exemptions in the future. The loss or potential loss of these exemptions, including as a result of a third party acquiring us, could have an adverse impact on our business.
 Prior to the IRA's enactment, the most significant recent federal legislation impacting the pharmaceutical industry occurred in March 2010, when the ACA was signed into law. The ACA was intended to broaden access to health insurance and reduce the number of uninsured individuals, reduce or constrain the growth of healthcare spending, enhance remedies against fraud and abuse, add transparency requirements for the healthcare and health insurance industries, impose taxes and fees on the health industry and impose additional health policy reforms.
 Other legislative changes have been adopted since the ACA was enacted. These changes include aggregate reductions to Medicare payments to providers of up to 2% per fiscal year pursuant to the Budget Control Act of 2011, which began in 2013 and, due to subsequent legislative amendments to the statute, including the Infrastructure Investment and Jobs Act and Consolidated Appropriations Act of 2023, will remain in effect until 2032. The American Taxpayer Relief Act of 2012, among other things, further reduced Medicare payments to several providers, including hospitals and cancer treatment centers, increased the statute of limitations period for the government to recover overpayments to providers from three to five years.
 At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical and biological product pricing, price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. For example, on January 5, 2024, the FDA approved Florida's SIP proposal to import certain drugs from Canada for specific state healthcare programs. It is unclear how this program will be implemented, including which drugs will be chosen, and whether it will be subject to legal challenges in the U.S. or Canada. Other states have also submitted SIP proposals that are pending review by the FDA. Any such approved importation plans, when implemented, may result in lower drug prices for products covered by those programs. Further, certain states through legislation have created a state PDAB to help control costs of drugs for that state. The functions of the PDABs vary by state, and may include among other things, recommending or setting upper limits on the price the state pays for certain drugs, performing drug affordability reviews, and advising state lawmakers on additional ways to reduce the state's drug spending. It is possible that the actions taken by the PDABs may result in lower prices for certain drug products sold in their states.
 The implementation of these cost containment measures may prevent us from being able to generate revenue, attain sustained profitability or commercialize our drugs, particularly since the majority of our current revenue is derived from federal healthcare programs, including Medicare and Medicaid.
 If we are unable to protect our intellectual property, our competitors could develop and market products based on our discoveries, which may reduce demand for our products.
 Our success will depend on our ability to, among other things:
 • obtain patent protection for our products;
 • preserve our trade secrets;
 • prevent third parties from infringing upon our proprietary rights; and
 • operate without infringing upon the proprietary rights of others, both in the U.S. and internationally.
 Because of the substantial length of time and expense associated with bringing new products through the development and regulatory approval processes in order to reach the marketplace, the pharmaceutical industry places considerable importance on obtaining patent and trade secret protection for new technologies, products and processes. Accordingly, we intend to seek patent protection for our proprietary technology and compounds. However, we face the risk that we may not obtain any of these patents and that the breadth of claims we obtain, if any, may not provide adequate protection of our proprietary technology or compounds. Additionally, if our employees, commercial collaborators or consultants use generative artificial intelligence (AI) technologies to develop our proprietary technology and compounds, it may impact our ability to obtain or successfully defend certain intellectual property rights.

 We also rely upon unpatented trade secrets and improvements, unpatented know-how and continuing technological innovation to develop and maintain our competitive position, which we seek to protect, in part, through confidentiality agreements with our commercial collaborators, employees and consultants. We also have invention or patent assignment agreements with our employees and some, but not all, of our commercial collaborators and consultants. However, if our employees, commercial collaborators or consultants breach these agreements, we may not have adequate remedies for any such breach, and our trade secrets may otherwise become known or independently discovered by our competitors.
 In addition, although we own a number of patents, the issuance of a patent is not conclusive as to its validity or enforceability, and third parties may challenge the validity or enforceability of our patents. We cannot assure you how much protection, if any, will be given to our patents if we attempt to enforce them and they are challenged in court or in other proceedings. It is possible that a competitor may successfully challenge our patents or that challenges will result in limitations of their coverage. Moreover, competitors may infringe our patents or successfully avoid them through design innovation. In addition, potential competitors have in the past and may in the future file an abbreviated new drug application (ANDA) with the FDA seeking approval to market a generic version of our products, or our competitors' products, before the expiration of the patents covering our products or our competitors' products, as applicable. To prevent infringement or unauthorized use, we have in the past and may in the future need to file infringement claims, which are expensive and time-consuming. In addition, in an infringement proceeding a court may decide that a patent of ours or a patent of a competitor is not valid or is unenforceable or may refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover its technology. Derivation proceedings declared by the U.S. Patent and Trademark Office may be necessary to determine the priority of inventions with respect to our patent applications (or those of our licensors) or a patent of a competitor. Litigation or derivation proceedings may fail and, even if successful, may result in substantial costs and be a distraction to management. Litigation or derivation proceedings, including proceedings of a competitor, may also result in a competitor entering the marketplace faster than expected. We cannot assure you that we will be able to prevent misappropriation of our proprietary rights, particularly in countries where the laws may not protect such rights as fully as in the U.S.
 Proposed healthcare reform, drug pricing measures and other prospective legislative initiatives could adversely affect our business.
 We expect that there will continue to be a number of federal and state proposals to implement additional government controls over the pricing of prescription pharmaceuticals. Increasing emphasis on reducing the cost of healthcare in the U.S. will continue to put pressure on the pricing and reimbursement of prescription pharmaceuticals.
 In addition, certain jurisdictions outside of the U.S., including the EU, have instituted price ceilings on specific products and therapies, as described further in the risk factor titled "Government and third-party payors may impose sales and pharmaceutical pricing controls on our products or limit coverage and/or reimbursement for our products or impose policies and/or make decisions regarding the status of our products that could limit our product revenues and delay sustained profitability."
 We are currently unable to predict what other additional legislation or regulation, if any, relating to the healthcare industry may be enacted in the future or what effect recently enacted federal or equivalent foreign legislation or any such additional legislation or regulation would have on our business, particularly in light of the recent U.S. Presidential and Congressional elections. The pendency or approval of such proposals or reforms could result in a decrease in our stock price or limit our ability to raise capital or to enter into collaboration agreements for the further development and commercialization of our programs and products.

 Any relationships with healthcare professionals, principal investigators, consultants, customers (actual and potential) and third-party payors in connection with our current and future business activities are and will continue to be subject, directly or indirectly, to federal and state healthcare laws. If we are unable to comply, or have not fully complied, with such laws, we could face penalties, contractual damages, reputational harm, diminished profits and future earnings and curtailment or restructuring of our operations.
 Our business operations and activities may be directly, or indirectly, subject to various federal and state healthcare laws, including without limitation, fraud and abuse laws, false claims laws, data privacy and security laws, as well as transparency laws regarding payments or other items of value provided to healthcare providers. These laws may restrict or prohibit a wide range of business activities, including, but not limited to, research, manufacturing, distribution, pricing, discounting, marketing and promotion, sales commission, customer incentive programs and other business arrangements. These laws may impact, among other things, our current activities with principal investigators and research subjects, as well as current and future sales, marketing, patient co-payment assistance and education programs.
 Such laws include:
 • the federal Anti-Kickback Statute which prohibits, among other things, persons and entities from knowingly and willfully soliciting, offering, receiving or providing remuneration, directly or indirectly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or the purchase, order or recommendation of, any good or service, for which payment may be made under a federal healthcare program such as Medicare and Medicaid;
 • the federal civil and criminal false claims laws, including the federal civil False Claims Act, and Civil Monetary Penalties Laws, which impose criminal and civil penalties against individuals or entities for, among other things, knowingly presenting, or causing to be presented, to the federal government, claims for payment that are false or fraudulent or making a false statement to avoid, decrease or conceal an obligation to pay money to the federal government;
 • HIPAA, which imposes criminal and civil liability for, among other things, executing a scheme to defraud any healthcare benefit program or making false statements relating to healthcare matters;
 • HIPAA, as amended by HITECH and its implementing regulations, which also imposes obligations, including mandatory contractual terms, on covered entities, including certain healthcare providers, health plans and healthcare clearinghouses, as well as their business associates and their covered subcontractors, with respect to safeguarding the privacy, security and transmission of individually identifiable health information;
 • the federal Physician Payments Sunshine Act, which requires certain manufacturers of drugs, devices, biologics and medical supplies for which payment is available under Medicare, Medicaid or the Children's Health Insurance Program, with specific exceptions, to report annually to CMS information related to payments or other transfers of value made to physicians (defined to include doctors, dentists, optometrists, podiatrists and chiropractors), other healthcare professionals (such as physician assistants and nurse practitioners) and teaching hospitals, and applicable manufacturers and applicable group purchasing organizations to report annually to CMS ownership and investment interests held by physicians and their immediate family members; and
 • analogous state, local and foreign laws and regulations, such as state anti-kickback and false claims laws, which may apply to sales or marketing arrangements and claims involving healthcare items or services reimbursed by non-governmental third party payors, including private insurers; state laws that require pharmaceutical companies to comply with the pharmaceutical industry's voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government; state laws that require drug manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing expenditures or drug pricing; state laws that require disclosure of price increases above certain identified thresholds as well as of new commercial launches in the state; state laws that create Prescription Drug Price Affordability Boards to review or attempt to cap drug spending; state and local laws that require the registration of pharmaceutical sales representatives; state and local "drug take back" laws and regulations; and state and foreign laws governing the privacy and security of health

 information in some circumstances, many of which differ from each other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts.
 Efforts to ensure that our business arrangements will comply with applicable healthcare laws may involve substantial costs. While our interactions with healthcare professionals, including our speaker programs and other arrangements have been structured to comply with these laws and related guidance, it is possible that governmental and enforcement authorities will conclude that our business practices, business practices of our vendors or consultants, or a rogue employee's activities, may not comply with current or future statutes, regulations or case law interpreting applicable fraud and abuse or other healthcare laws. For example, we maintain a patient assistance program to help eligible patients afford our products. These and other types of programs have become the subject of governmental scrutiny, and numerous organizations, including pharmaceutical manufacturers, have been subject to litigation, enforcement actions and settlements related to their patient assistance programs. If our operations or activities or those of our vendors are found to be in violation of any of the laws described above or any other applicable governmental regulations, we may be subject to, without limitation, significant civil, criminal and administrative penalties, damages, monetary fines, disgorgement, possible exclusion from participation in Medicare, Medicaid and other federal healthcare programs, additional reporting requirements and oversight if we become subject to a corporate integrity agreement or similar agreement to resolve allegations of non-compliance with these laws, contractual damages, reputational harm, diminished profits and future earnings and curtailment or restructuring of our operations, any of which could adversely affect our ability to operate.
 Any sales of our product once commercialized outside the U.S. will also likely subject us to foreign equivalents of the healthcare laws mentioned above, among other foreign laws. Additionally, because of our U.S. and international operations, we are also subject to anti-corruption laws and regulations, in the United States and internationally, including but not limited the U.S. Foreign Corrupt Practices (FCPA), the U.K. Bribery Act 2010, and other applicable anti-bribery and corruption laws. Anti-corruption laws are interpreted broadly and prohibit corporations and individuals from engaging in certain activities to obtain or retain business or to influence a person working in an official capacity. It is illegal to pay, offer to pay or authorize the payment of anything of value to any foreign government official, government staff member, political party, or political candidate in an attempt to obtain or retain business or to otherwise influence a person working in an official capacity. The FCPA also imposes accounting standards and requirements on publicly traded U.S. corporations and their foreign affiliates, which are intended to prevent the diversion of corporate funds to the payment of bribes and other improper payments. Recent years have seen substantial increase in the global enforcement of anti-corruption laws. Our operations outside the United States could increase the risk of such violations. Our business is also heavily regulated and involves significant interaction with foreign officials. In many countries outside the U.S., independent clinical investigators conducting our clinical trials and prescribers of our products are employed by government entities, and purchasers themselves can be government entities. As such, our interactions with such investigators, prescribers and purchasers may be subject to regulation under the FCPA, as well as other similar under anti-corruption laws and/or regulations enacted by other countries. Failure to comply with these laws, where applicable, can result in significant penalties, including the imposition of significant civil, criminal and administrative penalties, damages, monetary fines, disgorgement, imprisonment, possible exclusion from participation in Medicare, Medicaid and other federal and equivalent foreign healthcare programs, and additional reporting requirements and regulatory oversight, any of which could adversely affect our ability to operate our business and our results of operations.
 We could face liability if a regulatory authority determines that we are promoting INGREZZA, CRENESSITY, or any of our product candidates that receives regulatory approval, for "off-label" uses.
 A company may not promote "off-label" uses for its drug products. An off-label use is the use of a product for an indication that is not described in the product's FDA-approved label in the U.S. or for uses in other jurisdictions that differ from those approved by the applicable regulatory agencies. Physicians, on the other hand, may prescribe products for off-label uses. Although the FDA and other regulatory agencies do not regulate a physician's choice of drug treatment made in the physician's independent medical judgment, they do restrict promotional communications from companies or their sales force with respect to off-label uses of products for which marketing clearance has not been issued. However, companies may share truthful and not misleading information that is otherwise consistent with a product's FDA approved labeling. A company that is found to have promoted off-label use of its product may be subject to significant liability, including civil and criminal sanctions.

 If the FDA or any other governmental agency, including equivalent foreign authorities, initiates an enforcement action against us, or if we are the subject of a qui tam suit brought by a private plaintiff on behalf of the government, and it is determined that we violated prohibitions relating to the promotion of products for unapproved uses, we could be subject to substantial civil or criminal fines or damage awards and other sanctions such as consent decrees and corporate integrity agreements pursuant to which our activities would be subject to ongoing scrutiny and monitoring to ensure compliance with applicable laws and regulations. Any such fines, awards or other sanctions would have an adverse effect on our revenue, business, financial prospects and reputation.
 If our information technology systems, those third parties upon which we rely, or our data is or were compromised, we could experience adverse impacts resulting from such compromise, including, but not limited to, interruptions to our operations such as our clinical trials, claims that we breached our data protection obligations, harm to our reputation, regulatory investigations or actions, litigation, fines and penalties, and a loss of customers or sales.
 We are increasingly dependent on information technology systems and infrastructure, including mobile technologies and technology systems and infrastructure of third parties upon whom we rely, including CROs and other vendors, to operate our business. In the ordinary course of our business, we and the third parties upon which we rely, collect, receive, store, process, generate, disclose, make accessible, protect, dispose of, transmit, use, safeguard, share and transfer, or collectively, process, confidential and sensitive electronic information on our networks and in our data centers. This information includes, among other things, de-identified or pseudonymous sensitive personal data (including health data), our intellectual property and proprietary information, the confidential information of our collaborators and licensees, and the personal data of our employees. It is important to our operations and business strategy that this electronic information remains secure and is perceived to be secure.
 The size and complexity of our information technology systems, and those of third-party vendors with whom we contract, and the volume of data we retain, make such systems potentially vulnerable to a variety of evolving threats, including but not limited to social-engineering attacks (including through deep fakes, which may be increasingly more difficult to identify as fake, and phishing attacks), malicious code, malware (such as malicious code, adware, and command and control (C2)), denial-of-service attacks, credential harvesting, personnel misconduct or error, ransomware attacks, supply-chain attacks, software bugs, server malfunctions, software or hardware failures, loss of data or other information technology assets, attacks enhanced or facilitated by AI, telecommunications failures, and other similar threats.
 Cyber-attacks, malicious internet-based activity, online and offline fraud, and other similar activities threaten the confidentiality, integrity, and availability of our sensitive information and information technology systems, and those of the third parties upon which we rely. Such threats continue to rise, are increasingly difficult to detect, and come from a variety of sources, including traditional computer "hackers," threat actors, "hacktivists," organized criminal threat actors, personnel (such as through theft or misuse), sophisticated nation states, and nation-state-supported actors (also referred to as APTs). Some actors now engage and are expected to continue to engage in cyber-attacks, including without limitation nation-state actors for geopolitical reasons and in conjunction with military conflicts and defense activities. During times of war and other major conflicts, we and the third parties upon which we rely may be vulnerable to a heightened risk of these attacks, including retaliatory cyber-attacks, which could materially disrupt our systems and operations, as well as our ability to conduct clinical trials.
 Ransomware attacks are also becoming increasingly prevalent and severe, and can lead to significant interruptions in our operations (including our ability to conduct clinical trials), loss of sensitive data (including related to our clinical trials) and income, reputational harm, and diversion of funds. To alleviate the financial, operational and reputational impact of a ransomware attack, it may be preferable to make extortion payments, but we may be unwilling or unable to do so (including, for example, if applicable laws or regulations prohibit such payments). Similarly, supply chain attacks have increased in frequency and severity, and we cannot guarantee that third parties in our supply chain have not been compromised or that they do not contain exploitable defects, vulnerabilities, or bugs that could result in a breach of or disruption to our information technology systems and infrastructure or the information technology systems and infrastructure of third parties that support our operations.
 Remote work has increased risks to our information technology systems and data, as certain of our employees work from home, utilizing network connections, computers and devices outside our premises, including at home, while in transit or in public locations.

 Additionally, natural disasters, public health pandemics or epidemics, terrorism, war and geopolitical conflicts, and telecommunication and electrical failures may result in damage to or the interruption or impairment of key business processes, or the loss or corruption of confidential information, including intellectual property, proprietary business information and personal data.
 Future or past business transactions (such as acquisitions or integrations) could expose us to additional cybersecurity risks and vulnerabilities, as our systems could be negatively affected by vulnerabilities present in acquired or integrated entities' systems and technologies. Furthermore, we may discover security issues that were not found during due diligence of such acquired or integrated entities, and it may be difficult to integrate companies into our information technology environment and security program.
 As cyber threats continue to evolve, we may be required to expend significant additional resources to continue to modify or enhance our protective measures or to investigate and remediate any information security vulnerabilities or modify our business activities (including our clinical trial activities) to try to protect against security incidents.
 We take steps designed to detect, mitigate, and remediate vulnerabilities in our information security systems (such as our hardware and/or software, including that of third parties upon which we rely). We may not, however, detect and remediate all such vulnerabilities including on a timely basis. Further, we may experience delays in developing and deploying remedial measures and patches designed to address identified vulnerabilities. Vulnerabilities could be exploited and result in a security incident.
 We rely on third-party service providers and technologies to operate critical business systems to process sensitive information in a variety of contexts, including, without limitation, cloud-based infrastructure, data center facilities, encryption and authentication technology, employee email and other functions. We also rely on third-party service providers to provide other products, services, parts, or otherwise to operate our business, including clinical trial sites and investigators, contractors, manufacturers, suppliers and consultants. Our ability to monitor these third parties' information security practices is limited, and these third parties may not have adequate information security measures in place. If our third-party service providers or CROs experience a security incident or other interruption, we could experience adverse consequences. In addition, supply-chain attacks have increased in frequency and severity, and we cannot guarantee that third parties' infrastructure in our supply chain or our third-party partners' supply chains have not been compromised or otherwise subject to a security incident. While we may be entitled to damages if our third-party service providers fail to satisfy their privacy or security-related obligations to us, any award may be insufficient to cover our damages, or we may be unable to recover such award.
 Although to our knowledge we, or the third parties upon who we rely, have not experienced a security incident or disruption to date that is material to us, we and our vendors have been, either directly or indirectly, the target of cybersecurity incidents and expect them to continue. While we have implemented security measures designed to protect our data security and information technology systems, such measures may not prevent such events. Furthermore, while we have implemented certain redundancies designed to avoid interruptions to our operations, not all potential events can be anticipated and interruptions to our operations could lead to decreased productivity.
 If we (or a third party upon whom we rely) experience a security incident, ransomware attack or are perceived to have experienced a security incident, we may experience material adverse consequences. Such material consequences may include: government enforcement actions (for example, investigations, fines, penalties, audits and inspections); additional reporting requirements and/or oversight; restrictions on processing sensitive information (including personal data); litigation (including class claims); indemnification obligations; negative publicity; reputational harm (including but not limited to damage to our patient, partner, or employee relationships); monetary fund diversions; diversion of management's attention; interruptions in our operations (including availability of data, loss of connectivity to our network or internet); financial loss (including decreased productivity resulting from interruptions in our operations); and other similar harms. Similarly, the loss of clinical trial data from completed or ongoing or planned clinical trials could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the data. In addition, theft of our intellectual property or proprietary business information could require substantial expenditures to remedy. Applicable data privacy and security obligations may also require us to notify relevant stakeholders, including affected individuals, customers, regulators, and investors, of security incidents. Such disclosures are costly, and the disclosure or the failure to comply with such requirements could lead to adverse consequences.

 Our contracts, with for example third parties or CROs, may not contain limitations of liability, and even where they do, there can be no assurance that limitations of liability in our contracts are sufficient to protect us from liabilities, damages, or claims related to our data privacy and security obligations. We also cannot be sure that our insurance coverage will be adequate or sufficient to protect us from or to mitigate liabilities arising out of our privacy and security practices, that such coverage will continue to be available on commercially reasonable terms or at all, or that such coverage will pay future claims.
 In addition to experiencing a security incident, third parties may gather, collect, or infer sensitive information about us from public sources, data brokers, or other means that reveals competitively sensitive details about our organization and could be used to undermine our competitive advantage or market position. Additionally, our sensitive information could be leaked, disclosed, or revealed as a result of or in connection with our employees', personnel's, or vendors' potential use of generative AI technologies.
 If we fail to obtain or maintain orphan drug designation or other regulatory exclusivity for some of our product candidates, our competitive position would be harmed.
 In addition to any patent protection, we rely on forms of regulatory exclusivity to protect our products such as orphan drug designation. A product candidate that receives orphan drug designation can benefit from a streamlined regulatory process as well as potential commercial benefits following approval. Currently, this designation provides market exclusivity in the U.S. for seven years and EU for 10 years if a product is the first such product approved for such orphan indication. This market exclusivity does not, however, pertain to indications other than those for which the drug was specifically designated in the approval, nor does it prevent other types of drugs from receiving orphan designations or approvals in these same indications. Further, even after an orphan drug is approved, the FDA can subsequently approve the same drug for the same condition if the FDA concludes that the product is clinically superior to the orphan product or a market shortage occurs.
 In the EU, orphan exclusivity may be reduced to six years if the drug no longer satisfies the original designation criteria or can be lost altogether if the marketing authorization holder consents to a second orphan drug application or cannot supply enough drug, or when a second applicant demonstrates its drug is "clinically superior" to the original orphan drug.
 If we do not have adequate patent protection for our products, then the relative importance of obtaining regulatory exclusivity is even greater. We may not be successful obtaining orphan drug designations for any indications and, even if we succeed, such product candidates with such orphan drug designations may fail to achieve FDA approval. Even if a product candidate with orphan drug designation may receive marketing approval from the FDA, it may fail to result in or maintain orphan drug exclusivity upon approval, which would harm our competitive position.
 Changes in the FDA, other government agencies or comparable foreign regulatory authorities could hinder their ability to hire and retain key leadership and other personnel, prevent new products and services from being developed or commercialized in a timely manner or otherwise prevent those agencies from performing normal business functions on which the operation of our business may rely, which could negatively impact our business.
 The ability of the FDA or comparable foreign regulatory authorities to review and approve new products can be affected by a variety of factors, including government budget and funding levels, ability to hire and retain key personnel and accept the payment of user fees, and statutory, regulatory, and policy changes. Average review times at the FDA have fluctuated in recent years as a result. In addition, government funding of other government agencies or comparable foreign regulatory authorities on which our operations may rely, including those that fund research and development activities, is subject to the political process, which is inherently fluid and unpredictable.
 Disruptions at the FDA, other government agencies or comparable foreign regulatory authorities may also slow the time necessary for new drugs to be reviewed and/or approved by necessary government agencies, which would adversely affect our business. For example, over the last several years, the U.S. government has shut down several times and certain regulatory agencies, such as the FDA, have had to furlough critical employees and stop critical activities. If a prolonged government shutdown occurs, including as a result of reaching the debt ceiling, it could significantly impact the ability of the FDA to timely review and process our regulatory submissions, which could have a material adverse effect on our business. Further, government shutdowns could impact our ability to access the public markets and obtain additional capital in the future.

 The technologies we use in our research as well as the drug targets we select may infringe the patents or violate the proprietary rights of third parties.
 We cannot assure you that third parties will not assert patent or other intellectual property infringement claims against us or our collaborators with respect to technologies used in potential products. If a patent infringement suit were brought against us or our collaborators, we or our collaborators could be forced to stop or delay developing, manufacturing or selling potential products that are claimed to infringe a third party's intellectual property unless that party grants us or our collaborators rights to use its intellectual property. In such cases, we could be required to obtain licenses to patents or proprietary rights of others in order to continue to commercialize our products. However, we may not be able to obtain any licenses required under any patents or proprietary rights of third parties on acceptable terms, or at all. Even if our collaborators or we were able to obtain rights to the third party's intellectual property, these rights may be non-exclusive, thereby giving our competitors access to the same intellectual property. Ultimately, we may be unable to commercialize some of our potential products or may have to cease some of our business operations as a result of patent infringement claims, which could severely harm our business.
 Our business operations may subject us to disputes, claims and lawsuits, which may be costly and time-consuming and could materially and adversely impact our financial position and results of operations.
 From time to time, we may become involved in disputes, claims and lawsuits relating to our business operations. In particular, we may face claims related to the safety of our products, intellectual property matters, employment matters, tax matters, commercial disputes, competition, sales and marketing practices, environmental matters, personal injury, insurance coverage and acquisition or divestiture-related matters. Any dispute, claim or lawsuit may divert management's attention away from our business, we may incur significant expenses in addressing or defending any dispute, claim or lawsuit, and we may be required to pay damage awards or settlements or become subject to equitable remedies that could adversely affect our operations and financial results.
 Litigation related to these disputes may be costly and time-consuming and could materially and adversely impact our financial position and results of operations if resolved against us. In addition, the uncertainty associated with litigation could lead to increased volatility in our stock price.
 Our employees, independent contractors, principal investigators, consultants, commercial partners and vendors may engage in misconduct or other improper activities, including non-compliance with regulatory standards and requirements.
 We are exposed to the risk of employee fraud or other misconduct. Misconduct by employees and independent contractors, such as principal investigators, consultants, commercial partners and vendors, or by employees of our commercial partners could include failures to comply with FDA regulations, to provide accurate information to the FDA, to comply with manufacturing standards we have established, to comply with federal and state healthcare fraud and abuse laws, to report financial information or data accurately, to maintain the confidentiality of our trade secrets or the trade secrets of our commercial partners, or to disclose unauthorized activities to us. In particular, sales, marketing and other business arrangements in the healthcare industry are subject to extensive laws intended to prevent fraud, kickbacks, self-dealing and other abusive practices. Employee and independent contractor misconduct could also involve the improper use of individually identifiable information, including, without limitation, information obtained in the course of clinical trials, which could result in regulatory sanctions and serious harm to our reputation. Any action against our employees, independent contractors, principal investigators, consultants, commercial partners or vendors for violations of these laws could result in significant civil, criminal and administrative penalties, fines and imprisonment.

 We face potential product liability exposure far in excess of our insurance coverage.
 The use of any of our potential products in clinical trials, and the sale of any approved products, including INGREZZA and CRENESSITY, may expose us to liability claims. These claims might be made directly by consumers, healthcare providers, pharmaceutical companies or others selling our products. We have product liability insurance coverage for both our clinical trials as well as related to the sale of INGREZZA and CRENESSITY in amounts consistent with customary industry practices. However, our insurance may not reimburse us or may not be sufficient to reimburse us for any expenses or losses we may suffer. Moreover, insurance coverage is becoming increasingly expensive, and we may not be able to maintain insurance coverage at a reasonable cost or in sufficient amounts to protect us against losses due to liability from any current or future clinical trials or approved products. A successful product liability claim, or series of claims, brought against us would decrease our cash reserves and could cause our stock price to fall. Furthermore, regardless of the eventual outcome of a product liability claim, any product liability claim against us may decrease demand for our approved products, including INGREZZA and CRENESSITY, damage our reputation, result in regulatory investigations that could require costly recalls or product modifications, cause clinical trial participants to withdrawal, result in costs to defend the related litigation, decrease our revenue, and divert management's attention from managing our business.
 Our activities involve hazardous materials, and we may be liable for any resulting contamination or injuries.
 Our research activities involve the controlled use of hazardous materials. We cannot eliminate the risk of accidental contamination or injury from these materials. If an accident occurs, a court may hold us liable for any resulting damages, which may harm our results of operations and cause us to use a substantial portion of our cash reserves, which would force us to seek additional financing.
 We are subject to stringent and changing obligations related to data privacy and information security. Our actual or perceived failure to comply with such obligations could have a material adverse effect on our reputation, business, financial condition or results of operations.
 In the ordinary course of our business, we process confidential and sensitive information, including personal data, proprietary and confidential business data, trade secrets, intellectual property, data we collect about clinical trial participants in connection with clinical trials, and sensitive third-party data, on our networks and in our data centers. We are subject to numerous federal, state, local and foreign laws, orders, codes, regulations and regulatory guidance regarding privacy, data protection, information security and the processing of personal information (including clinical trial data), the number and scope of which are expanding, changing, subject to differing applications and interpretations, and may be inconsistent among jurisdictions. Our data processing activities may also subject us to other data privacy and security obligations, such as industry standards, external and internal privacy and security policies, contracts and other obligations that govern the processing of data by us and by third parties on our behalf.
 Laws regarding privacy, data protection, information security and the processing of personal data are becoming increasingly common in the U.S. at both the federal and state level. Additionally, in the past few years, numerous U.S. states—including California, Virginia, Colorado, Connecticut, and Utah—have enacted comprehensive privacy laws that impose certain obligations on covered businesses, including providing specific disclosures in privacy notices and affording residents with certain rights concerning their personal data. As applicable, such rights may include the right to access, correct, or delete certain personal data, and to opt-out of certain data processing activities, such as targeted advertising, profiling, and automated decision-making. The exercise of these rights may impact our business and ability to provide our products and services. Certain states also impose stricter requirements for processing certain personal data, including sensitive information, such as conducting data privacy impact assessments. These state laws allow for statutory fines for noncompliance. For example, the California Consumer Privacy Act, as amended by the California Privacy Rights Act of 2020 (collectively, CCPA), requires businesses to provide specific disclosures in privacy notices, and honor requests of California residents to exercise certain privacy rights. The CCPA allows for fines for noncompliance (up to $7,500 per intentional violation). Although some U.S. comprehensive privacy laws and the CCPA exempt some data processed in the context of clinical trials, these laws may increase compliance costs and potential liability with respect to other personal data we may maintain about California residents. Other states have also enacted data privacy laws and we expect more jurisdictions to pass similar laws in the future. These developments may further complicate compliance efforts, and may increase legal risk and compliance costs for us and the third parties upon whom we rely.

 Additionally, HIPAA, as amended by HITECH, imposes specific requirements relating to the privacy, security, and transmission of individually identifiable health information.
 Laws in Europe regarding privacy, data protection, information security and the processing of personal data have also been significantly reformed and continue to undergo reform. For example, the EU's General Data Protection Regulation (EU GDPR) and the UK's GDPR (UK GDPR) (collectively, GDPR) impose strict requirements for processing the personal data of individuals located, respectively, within the European Economic Area (EEA) and the UK, and the Swiss Federal Act on Data Protection similarly applies to the collection and processing of personal data, including health-related information, in Switzerland. The GDPR provides for enhanced data protection obligations for processors and controllers of personal data, including, for example, obligations relating to: processing health and other sensitive data; obtaining consent of individuals; providing notice to individuals regarding data processing activities; responding to data subject requests; taking certain measures when engaging third-party processors; notifying data subjects and regulators of data breaches; and implementing safeguards to protect the security and confidentiality of personal data. The GDPR impose substantial fines for breaches of data protection requirements. For example, under the GDPR, such fines can be up to four percent of global revenue or 20 million euros under the EU GDPR / 17.5 million pounds sterling under the UK GDPR, whichever is greater in either case, and also allow for private litigation related to processing of personal data brought by classes of data subjects or consumer protection organizations authorized at law to represent their interests. The GDPR and other changes in laws or regulations associated with the enhanced protection of certain types of sensitive data, such as EU regulations governing clinical trial data and other healthcare data, could require us to change our business practices or lead to government enforcement actions, private litigation or significant penalties against us and could have a material adverse effect on our business, financial condition or results of operations.
 We may be subject to additional foreign data laws. For example, in Canada, the Personal Information Protection and Electronic Documents Act (PIPEDA) and various related provincial laws, as well as Canada's Anti-Spam Legislation (CASL), may apply to our operations. As another example, the General Data Protection Law, Lei Geral de Prote o de Dados Pessoais (LGPD) (Law No. 13,709/2018), may apply to our operations. The LGPD broadly regulates processing personal data of individuals in Brazil and imposes compliance obligations and penalties comparable to those of the EU GDPR. We also target customers in Asia and may be subject to new and emerging data privacy regimes in Asia, including Japan's Act on the Protection of Personal Information and Singapore's Personal Data Protection Act.
 In the ordinary course of business, we may transfer personal data from Europe and other jurisdictions to the U.S. or other countries. Certain jurisdictions have enacted data localization laws and cross-border personal data transfers laws. For example, countries in the EEA and the UK have significantly restricted the transfer of personal data to the U.S. and other countries, whose privacy laws it generally believes are inadequate. Although there are currently various mechanisms that may be used to transfer personal data from the EEA and UK to the U.S. in compliance with law, such as the EEA standard contractual clauses, the UK's International Data Transfer Agreement / Addendum, and the EU-U.S. Data Privacy Framework and the UK extension thereto (which allows for transfers for to relevant U.S.-based organizations who self-certify compliance and participate in the Framework), these mechanisms are subject to legal challenges, and there is no assurance that we can satisfy or rely on these measures to lawfully transfer personal data to the U.S. If we cannot implement a valid compliance mechanism for cross-border personal data transfers or if the requirements for a legally-compliant transfer are too onerous, we may face increased exposure to regulatory actions, substantial fines and injunctions against processing or transferring personal data from Europe or elsewhere. The inability to import personal data to the U.S. may significantly and negatively impact our business operations, including by limiting our ability to conduct clinical trial activities in Europe and elsewhere; limiting our ability to collaborate with parties subject to European and other data protection laws or requiring us to increase our personal data processing capabilities in Europe and/or elsewhere at significant expense. Other jurisdictions may adopt or have already adopted similarly stringent interpretations of their data localization and cross-border data transfer laws. Additionally, companies that transfer personal data out of the EEA and UK to other jurisdictions, particularly to the U.S., are subject to increased scrutiny from regulators, individual litigants, and activist groups. Some European regulators have ordered certain companies to suspend or permanently cease certain transfers out of Europe for allegedly violating the GDPR's cross-border data transfer limitations.

 Our employees and personnel are permitted to use generative AI technologies to perform some of their work, and the disclosure and use of personal information data in generative AI technologies is subject to various privacy laws and other privacy obligations. Governments have passed and are likely to pass additional laws regulating generative AI. Our use of this technology could result in additional compliance costs, regulatory investigations and actions, and consumer lawsuits. Furthermore, any use of generative AI to develop our proprietary technology and compounds may also impact our ability to obtain or successfully defend certain intellectual property rights. If we are unable to use generative AI, it could make our business less efficient and result in competitive disadvantages.
 In addition to data privacy and security laws, we may contractually be subject to industry standards adopted by industry groups and, we are, or may become subject to such obligations in the future. We are also bound by contractual obligations related to data privacy and security, and our efforts to comply with such obligations may not be successful. We publish privacy policies, marketing materials and other statements regarding data privacy and security. Regulators in the U.S. are increasingly scrutinizing these statements, and if these policies, materials or statements are found to be deficient, lacking in transparency, deceptive, unfair, misleading, or misrepresentative of our practices, we may be subject to investigation, enforcement actions by regulators or other adverse consequences.
 Our obligations related to data privacy and security (and consumers' data privacy expectations) are quickly changing in an increasingly stringent fashion and creating uncertainty. These obligations may be subject to differing applications and interpretations, which may be inconsistent among jurisdictions or in conflict. Preparing for and complying with these obligations requires us to devote significant resources (including, without limitation, financial and time-related resources). These obligations may necessitate changes to our information technologies, systems and practices and those of any third parties that process personal data on our behalf. In addition, these obligations may even require us to change our business model.
 Although we endeavor to comply with all applicable data privacy and security obligations, we may at times fail (or be perceived to have failed) to do so. Moreover, despite our efforts, our personnel or third-parties upon whom we rely may fail to comply such obligations that impacts our compliance posture. If we fail, or are perceived to have failed, to address or comply with data privacy and security obligations, we could face significant consequences. These consequences may include, but are not limited to, government enforcement actions, litigation (including class claims), additional reporting requirements and/or oversight, bans on processing personal data, imprisonment of company officials, and orders to destroy or not use personal data. In particular, plaintiffs have become increasingly more active in bringing privacy-related claims against companies, including class claims and mass arbitration demands. Some of these claims allow for the recovery of statutory damages on a per violation basis, and, if viable, carry the potential for monumental statutory damages, depending on the volume of data and the number of violations. Any of these events could have a material adverse effect on our reputation, business, financial condition or results of operations.

 Item 1B. Unresolved Staff Comments
 None.

 Item 1C. Cybersecurity
 Risk Management and Strategy
 We rely on information technology and data to operate our business and develop, market, and deliver our therapies to our customers. We have implemented and maintain various information security processes designed to identify, assess and manage material risks from cybersecurity threats to critical computer networks, third party hosted services, communications systems, hardware, lab equipment, software, and our critical data includes confidential, personal, proprietary, and sensitive data (collectively "Information Assets"). Accordingly, we maintain certain risk assessment processes intended to identify cybersecurity threats, determine their likelihood of occurring, and assess potential material impact to our business. Based on our assessment, we implement and maintain risk management processes designed to protect the confidentiality, integrity, and availability of our Information Assets and mitigate harm to our business.
 The Company's general risk management program is designed to manage identified material risks, which would include material cybersecurity risks.

 We engage in processes designed to identify such threats by, among other things, monitoring the threat environment using manual and automated tools, subscribing to reports and services that identify cybersecurity threats, analyzing reports of threats and actors, conducting scans of the threat environment, evaluating our and our industry's risk profile, evaluating threats reported to us, coordinating with law enforcement concerning threats, conducting threat assessments for internal and external threats, and conducting vulnerability assessments to identify vulnerabilities.
 We rely on a multidisciplinary team (including from our information security function, management, and third party service providers, as described further below) to assess how identified cybersecurity threats could impact our business. These assessments may leverage, among other processes, industry tools and metrics designed to assist in the assessment of risks from such cybersecurity threats.
 Depending on the environment, we implement and maintain various technical, physical and organizational measures designed to manage and mitigate material risks from cybersecurity threats to our Information Assets. The cybersecurity risk management and mitigation measures we implement for certain of our Information Assets include: policies and procedures designed to address cybersecurity threats, including an incident response plan, vulnerability management policy, and disaster recovery/business continuity plans; incident detection and response tools; internal and/or external audits to assess our exposure to cybersecurity threats, environment, compliance with risk mitigation procedures, and effectiveness of relevant controls; documented risk assessments; implementation of security standards/certifications; credit and background checks on our and/or third parties' personnel; encryption of data; network security controls; threat modeling; data segregation; physical and electronic access controls; physical security; asset management, tracking and disposal; systems monitoring; vendor risk management program; employee security training; penetration testing; red/blue team exercises; cyber insurance; dedicated cybersecurity staff/officer.
 We work with third parties from time to time that assist us from time to time to identify, assess, and manage cybersecurity risks, including professional services firms, threat intelligence service providers, cybersecurity consultants, cybersecurity software providers, managed cybersecurity service providers, and penetration testing.
 To operate our business, we utilize certain third-party service providers to perform a variety of functions, such as outsourced business critical functions, clinical research, professional services, SaaS platforms, managed services, property management, cloud-based infrastructure, data center facilities, content delivery, encryption and authentication technology, corporate productivity services, and other functions. We have certain vendor management processes designed to help to manage cybersecurity risks associated with our use of certain of these providers. Depending on the nature of the services provided, the sensitivity and quantity of information processed, and the identity of the service provider, our vendor management process may include reviewing the cybersecurity practices of such provider, contractually imposing obligations on the provider related to the services they provide and/or the information they process, conducting security assessments, conducting on-site inspections, requiring their completion of written questionnaires regarding their services and data handling practices, and conducting periodic re-assessments during their engagement.
 For a description of the risks from cybersecurity threats that may materially affect us and how they may do so, refer to Part I, Item 1A. Risk Factors for additional information about cybersecurity-related risks.
 Governance
 Our cybersecurity risk assessment and management processes are implemented and maintained by certain Company management, including a Chief Information Officer, who reports to the CFO. Management is also responsible for hiring appropriate personnel, integrating cybersecurity considerations into the company's overall risk management strategy, and for communicating key priorities to employees, as well as for approving budgets, helping prepare for cybersecurity incidents, approving cybersecurity processes, and reviewing security assessments and other security-related reports. Our cybersecurity incident response and vulnerability management processes involve management, who participates in our disclosure controls and procedures.
 Our cybersecurity incident response and vulnerability management processes are designed to escalate certain cybersecurity incidents and vulnerabilities to members of management depending on the circumstances, including work with the company's incident response team to help the company mitigate and remediate cybersecurity incidents of which they are notified. In addition, the company's incident response processes include reporting to the Audit committee of the board of directors for certain cybersecurity incidents.

 Management is involved with the Company's efforts to prevent, detect, and mitigate cybersecurity incidents by overseeing preparation of cybersecurity policies and procedures, testing of incident response plans, engagement of vendors to conduct penetration tests. Management participates in cybersecurity incident response efforts by being a member of the incident response team and helping direct the company's response to cybersecurity incidents.
 Our board of directors addresses the Company's cybersecurity risk management as part of its general oversight function. The board of directors' audit committee is responsible for overseeing the company's cybersecurity risk management processes, including oversight and mitigation of risks from cybersecurity threats. The audit committee also has access to various reports, summaries or presentations related to cybersecurity threats, risk, and mitigation.

 Item 2. Properties
 The following table presents information on our leased facilities.

 Location
 Use
 Square Feet
 Expiration Date

 Pacific Highlands Ranch in San Diego, California
 Corporate Headquarters, Office and Laboratory
 535,000
 October 31, 2036

 Carmel Valley in San Diego, California
 Office and Laboratory
 229,000
 (1)

 July 31, 2031

 Carmel Valley in San Diego, California
 Office
 45,000
 (2)

 April 30, 2029

 (1) This property is associated with our former corporate headquarters. 73,000 square feet is subleased by multiple companies for general office space through the remaining term of the lease and we are actively marketing an additional 141,000 square feet for sublease.
 (2) This property is associated with our former corporate headquarters. We are actively marketing this property for sublease.

 Item 3. Legal Proceedings
 For a description of our legal proceedings, refer to Note 15 to the consolidated financial statements, which is incorporated herein by reference.

 Item 4. Mine Safety Disclosures
 None.

 Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
 Our common stock is traded on the Nasdaq Global Select Market under the symbol "NBIX".
 As of February 5, 2025, there were 39 stockholders of record of our common stock. We have not paid any cash dividends on our common stock since inception and do not anticipate paying cash dividends in the foreseeable future.
 Recent Sales of Unregistered Securities
 There were no unregistered sales of our equity securities during 2024.
 Issuer Purchases of Equity Securities
 In October 2024, our Board of Directors authorized a share repurchase program to repurchase up to $300.0 million of the Company's common stock. Through the end of the fourth quarter of 2024, we have repurchased shares of the Company's common stock having a value of $240.5 million under this program. The number of shares and average price paid per share for shares repurchased in each month of the fourth quarter of 2024 are set forth in the table below:

 Period
 Total Number of Shares
Repurchased
 Average Price
Paid
Per Share
 Total Number of
 Shares Purchased as
 Part of Publicly
 Announced Program (1)

 Dollar Value of
 Shares that May Yet
 Be Purchased
 Under the Program (1)

 October 2024
 —
 $
 —
 —
 $
 300,000,000

 November 2024 (1)

 1,995,510
 $
 120.53
 1,995,510
 $
 59,481,180

 December 2024
 —
 $
 —
 —
 $
 59,481,180

 1,995,510
 $
 120.53
 1,995,510

 (1) In November 2024, we paid $300.0 million under an accelerated share repurchase (ASR) transaction and received an initial delivery of 2.0 million shares. The ASR transaction terminated in February 2025, at which time we became contractually entitled to receive an additional 0.3 million shares upon settlement. Refer to Note 6 to the consolidated financial statements.

 STOCK PERFORMANCE GRAPH AND CUMULATIVE TOTAL RETURN*
 The following graph presents the cumulative total stockholder return assuming the investment of $100 on December 31, 2019 (and the reinvestment of dividends thereafter) in each of (i) Neurocrine Biosciences, Inc.'s common stock, (ii) the Nasdaq Composite Index and (iii) the Nasdaq Biotechnology Index. The comparisons in the graph below are based upon historical data and are not indicative of, or intended to forecast, future performance of our common stock or Indexes.

 * The material in this section is not "soliciting material", is not deemed "filed" with the Securities and Exchange Commission and is not to be incorporated by reference into any of our SEC filings whether made before or after the date hereof and irrespective of any general incorporation language in any such SEC filing except to the extent we specifically incorporate this section by reference.

 Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations
 The following Management's Discussion and Analysis of Financial Condition and Results of Operations section contains forward-looking statements pertaining to, among other things, the commercialization of our product and product candidates, the expected continuation of our collaborative agreements, the progress, timing, results or implications of clinical trials and other development activities, our plans and timing with respect to seeking regulatory approvals, the period of time that our existing capital resources will meet our funding requirements, and our financial results of operations. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of various risks and uncertainties, including those set forth in this Annual Report on Form 10-K under the heading "Item 1A. Risk Factors." See "Forward-Looking Statements" in Part I of this Annual Report on Form 10-K.

 Overview
 Neurocrine Biosciences is a neuroscience-focused, biopharmaceutical company with a simple purpose: to relieve suffering for people with great needs, but few options. We are dedicated to discovering and developing life-changing treatments for patients with under-addressed neuropsychiatric, neurological, and neuroendocrine disorders.
 Our portfolio of products includes U.S. Food and Drug Administration (FDA) approved treatments for tardive dyskinesia, chorea associated with Huntington's disease, classic congenital adrenal hyperplasia (CAH), and endometriosis and uterine fibroids in collaboration with AbbVie Inc. (AbbVie). In addition, we have a diversified portfolio of multiple compounds in mid- to late-phase development across our core therapeutic areas and an expanding early-phase pipeline that includes a range of modalities including small molecules, peptides, proteins, antibodies, and gene therapy.
 We launched INGREZZA (valbenazine) in the U.S. as the first FDA-approved drug for the treatment of tardive dyskinesia in May 2017 and for the treatment of chorea associated with Huntington's disease in August 2023 and launched CRENESSITYTM (crinecerfont) in the U.S. as a first-in-class FDA-approved treatment of CAH in December 2024.
 We estimate that tardive dyskinesia affects approximately 800,000 people in the U.S., that approximately 90% of the 40,000 people in the U.S. affected by Huntington's disease will develop chorea, and that CAH affects approximately 30,000 people in the U.S. Key elements of our commercial strategy include maximizing the opportunities in INGREZZA and CRENESSITY through consistent and effective commercial execution, continued development of valbenazine as the best-in-class treatment for new patient populations, and to lead the evolving understanding of VMAT2 biology and its role in disease. INGREZZA net product sales totaled $2.3 billion for 2024, $1.8 billion for 2023, and $1.4 billion for 2022 and accounted for substantially all of our total net product sales during each of these years.
 Our partner Mitsubishi Tanabe Pharma Corporation (MTPC) launched DYSVAL (valbenazine) in Japan for the treatment of tardive dyskinesia in June 2022 and subsequently in other select Asian markets, where it is marketed as REMLEAS (valbenazine). We receive royalties at tiered percentage rates on MTPC net sales of valbenazine.
 Our partner AbbVie launched ORILISSA (elagolix tablets) in the U.S. for the treatment of endometriosis in August 2018 and ORIAHNN (elagolix, estradiol and norethindrone acetate capsules and elagolix capsules) in the U.S. for the treatment of heavy menstrual bleeding due to uterine fibroids in June 2020. We receive royalties at tiered percentage rates on AbbVie net sales of elagolix.
 Business Highlights
 • INGREZZA net product sales for 2024 increased $477.5 million, or 26.0%, to $2.3 billion, reflecting strong underlying patient demand and improved gross-to-net dynamics.
 • In December 2024, we received FDA approval for CRENESSITY capsules and oral solution as an adjunctive treatment of CAH and launched CRENESSITY in the U.S. as a first-in-class FDA-approved treatment of CAH. We estimate that CAH affects approximately 30,000 people in the U.S.

 • Kevin Gorman, Ph. D., retired as Chief Executive Officer (CEO) effective October 11, 2024. Kyle Gano, Ph. D., formerly Neurocrine's Chief Business Development and Strategy Officer, succeeded Dr. Gorman in the CEO role and also joined the Company's Board of Directors at that time. Dr. Gorman continues to serve on the Company's Board.
 • Received notification from the Centers for Medicare and Medicaid Services that INGREZZA qualified for the Specified Small Manufacturer Exception pertaining to the Part D redesign of the Inflation Reduction Act.
 • Settled the convertible senior notes due May 15, 2024 (the 2024 Notes) in full in cash upon maturity.
 • Deployed expanded INGREZZA psychiatry and long-term care sales teams to better serve patients by accelerating the number of people who are diagnosed and treated for tardive dyskinesia and chorea associated with Huntington's disease with INGREZZA.
 • Repurchased and retired an initial delivery of 2.0 million shares of the Company's common stock pursuant to previously announced $300.0 million accelerated share repurchase (ASR) program. The program was completed in February 2025, at which time we became contractually entitled to receive an additional 0.3 million shares upon settlement.
 Pipeline Highlights
 • Announced the initiation of the Phase 3 program for osavampator (formerly NBI-1065845), a potential first-in-class alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) positive allosteric modulator (PAM) in development for patients with inadequate response to treatment of major depressive disorder (MDD).
 • Announced amendment to strategic collaboration with Takeda Pharmaceutical Company Limited (Takeda) to develop and commercialize osavampator. Under the amended agreement, we will retain exclusive rights for all indications to develop and commercialize osavampator in all territories worldwide except Japan, where Takeda will have exclusive rights. Under the terms of the updated agreement, each company is responsible for development costs in their respective region, and both companies are eligible to receive royalty payments.
 • Announced the initiation of the Phase 1 clinical study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of investigational compound NBI-921355 in healthy adult participants. NBI-921355 is an investigational, selective inhibitor of voltage-gated sodium channels Nav1.2 and Nav1.6 and in development for the potential treatment of certain types of epilepsy.
 • Presented subgroup analyses and data from the KINECT -HD study showing the impact of INGREZZA capsules on emotional health and psychiatric stability in patients with chorea associated with Huntington's disease. The subgroup analysis showed consistent efficacy in reducing chorea compared to placebo across all identified subgroups, categorized by demographics and baseline assessment scores. A separate data analysis showed improvements in some aspects of emotional health with no worsening of psychiatric symptoms.
 • Presented data from more than 300 patients diagnosed with tardive dyskinesia and treated with INGREZZA capsules. These data showed significant improvements in functional, social, emotional, and health-related quality of life measures in Phase 3 and 4 studies and improvements in functional, social, independence, emotional, and physical aspects of patients' lives and antipsychotic adherence in real-world practice.
 • Announced positive topline data for the Phase 2 study of NBI-1117568, a first-in-class, orally active, highly selective investigational M4 agonist, in development as a potential treatment for schizophrenia. The successful completion of the Phase 2 study triggered a $35.0 million milestone payment to Nxera Pharma UK Limited (Nxera) in 2024. We expect to advance NBI-1117568 into Phase 3 development in the first half of 2025, which would trigger an additional $15.0 million milestone payment to Nxera upon initiation of the Phase 3 study.
 • Announced positive topline data for the Phase 2 SAVITRI study. This randomized, double-blind, placebo-controlled dose-finding study assessed the efficacy and safety of osavampator in adult subjects with MDD.
 • At the Endocrine Society Annual Meeting (ENDO 2024), presented new Phase 3 clinical study data from the CAHtalyst registrational studies of crinecerfont in pediatric and adult patients with CAH. In parallel, announced that the primary study results from the CAHtalyst registrational studies of crinecerfont in pediatric and adult patients with CAH have been published in The New England Journal of Medicine.
 • Initiated Phase 2 study of NBI-1070770 in adults with MDD. NBI-1070770 is a novel, selective, and orally active, negative allosteric modulator (NAM) of the NR2B subunit-containing N-methyl-D-aspartate (NMDA NR2B) receptor.

 • Initiated Phase 1 study of NBI-1117567 in healthy adult participants. NBI-1117567 is an investigational, oral, M1/M4 (M1 preferring) selective muscarinic agonist for the potential treatment of neurological and neuropsychiatric conditions.
 • Initiated Phase 1 study of NBI-1076968 in healthy adult participants. NBI-1076968 is an investigational, oral, M4 subtype-selective muscarinic antagonist for the potential treatment of movement disorders.
 • Received approval from the FDA for INGREZZA SPRINKLE (valbenazine) capsules, a new oral granules formulation of INGREZZA capsules, and subsequently launched new sprinkle formulation of INGREZZA capsules for the treatment of adults with tardive dyskinesia and chorea associated with Huntington's disease.
 • Presented KINECT -HD2 interim data at the 2024 MDS International Congress of Parkinson's Disease and Movement Disorders demonstrating robust and sustained improvements in chorea associated with Huntington's disease through week 104 irrespective of antipsychotic use.
 • Announced the ERUDITE Phase 2 study of luvadaxistat (NBI-1065844) in cognitive impairment associated with schizophrenia (CIAS) did not meet its primary endpoint. In addition, we provided Takeda with written notice of termination of the license agreement to develop and commercialize luvadaxistat and NBI-1065846. The termination is anticipated to be effective in April 2025.
 • Provided Idorsia Pharmaceuticals Ltd. with written notice of termination of the license agreement to develop and commercialize NBI-827104. The termination became effective in January 2025.

 Results of Operations
 Revenues
 Net Product Sales

 2024
 2023
 2022

 INGREZZA
 $
 2,313.5
 $
 1,836.0
 $
 1,427.8

 Other
 17.1
 24.6
 13.1

 Total net product sales
 $
 2,330.6
 $
 1,860.6
 $
 1,440.9

 For 2024 compared to 2023, the increase primarily reflected increased INGREZZA net product sales driven by strong underlying patient demand and improved gross-to-net dynamics.
 For 2023 compared to 2022, the increase primarily reflected increased INGREZZA net product sales on higher prescription demand and increased commercial activities, including continued investment in our branded direct-to-consumer INGREZZA advertising campaign and benefit from the expansion of our sales force completed in April 2022.
 Collaboration Revenues by Category

 2024
 2023
 2022

 Royalty revenue
 $
 18.6
 $
 21.2
 $
 22.3

 Milestones
 —
 —
 20.0

 Collaboration and other

 6.1
 5.3
 5.5

 Total collaboration revenues
 $
 24.7
 $
 26.5
 $
 47.8

 Total collaboration revenues for all periods presented primarily reflected royalty revenue earned on AbbVie net sales of elagolix and MTPC net sales of valbenazine.
 For 2023 compared to 2022, the decrease reflected the achievement of a $20.0 million milestone in 2022 in connection with MTPC's first commercial sale of DYSVAL in Japan.

 Operating Expenses
 Cost of Revenues

 2024
 2023
 2022

 Cost of revenues
 $
 34.0
 $
 39.7
 $
 23.2

 For 2024 compared to 2023, the decrease primarily reflected the impact of decreased ONGENTYS (opicapone) net product sales and lower ONGENTYS inventory reserves in connection with the termination of our license agreement with BIAL, which became effective in December 2023, partially offset by the impact of increased INGREZZA net product sales.
 For 2023 compared to 2022, the increase primarily reflected increased INGREZZA and other net product sales, increased amortization costs related to intangible assets, increased reserves for ONGENTYS inventory obsolescence in connection with the termination of our license agreement with BIAL, and increased manufacturing costs in connection with our supply of valbenazine drug product under our collaboration with MTPC.
 Research and Development
 We support our drug discovery and development efforts through the commitment of significant resources to discovery, research and development programs, and business development opportunities. Costs are reflected in the applicable development stage based upon the program status when incurred. Therefore, the same program could be reflected in different development stages in the same reporting period. For several of our programs, the research and development activities are part of our collaborative arrangements.

 2024
 2023
 2022

 Late stage
 $
 101.8
 $
 106.1
 $
 68.7

 Early stage
 96.1
 107.4
 81.1

 Research and discovery
 145.6
 96.5
 63.7

 Milestones
 71.7
 0.8
 42.7

 Payroll and benefits
 236.7
 206.7
 163.8

 Facilities and other
 79.2
 47.5
 43.8

 Research and development
 $
 731.1
 $
 565.0
 $
 463.8

 Late Stage. Late stage consists of costs incurred for product candidates in Phase 2 registrational studies and all subsequent activities.
 For 2024 compared to 2023, the decrease primarily reflected the successful completions of the Phase 3 programs for crinecerfont in CAH and Phase 2 program for EFMODY in CAH, partially offset by increased investments in advancing Phase 3 programs for osavampator in MDD and NBI-1117568 in schizophrenia.
 For 2023 compared to 2022, the increase primarily reflected increased investments in the Phase 3 programs for crinecerfont in CAH and valbenazine in schizophrenia and Phase 2 program for EFMODY in CAH.
 Early Stage. Early stage consists of costs incurred for product candidates after the approval of an investigational new drug application by the applicable regulatory agency through Phase 2 non-registrational studies.
 For 2024 compared to 2023, the decrease primarily reflected lower spend on certain early-stage programs in epilepsy and psychiatry, including the successful completions of the Phase 2 programs for osavampator in MDD and NBI-1117568 in schizophrenia, partially offset by increased investments in the Phase 2 program for NBI-1070770 in MDD and certain early-stage muscarinic programs.
 For 2023 compared to 2022, the increase primarily reflected increased investments in certain early-stage programs in psychiatry, partially offset by lower spend on early-stage programs in epilepsy.

 Research and Discovery. Research and discovery consists of costs incurred prior to the approval of an investigational new drug application by the applicable regulatory agency.
 For 2024 compared to 2023, the increase reflected increased investments in gene therapy and other preclinical development programs.
 For 2023 compared to 2022, the increase reflected increased investments in preclinical development programs, including muscarinic agonists, gene therapy, and second generation VMAT2 inhibitors.
 Milestones. Milestones consists of costs incurred in connection with the achievement of development milestones under our collaborative arrangements.
 For 2024 compared to 2023, the increase reflected increased expense recognized in connection with development milestones achieved under our collaborations with Nxera, Takeda, and Voyager Therapeutics, Inc. (Voyager).
 For 2023 compared to 2022, the decrease primarily reflected decreased expense recognized in connection with development milestones achieved under our collaborations with Nxera, Xenon Pharmaceuticals Inc. (Xenon), and Takeda.
 Payroll and Benefits. Payroll and benefits consists of costs incurred for salaries and wages, payroll taxes, benefits and stock-based compensation associated with employees involved in research and development activities. Stock-based compensation may fluctuate from period to period based on factors that are not within our control, such as our stock price on the dates stock-based grants are issued.
 For 2024 compared to 2023, the increase primarily reflected higher headcount.
 For 2023 compared to 2022, the increase primarily reflected higher headcount and increased non-cash stock-based compensation expense primarily driven by a charge related to a change in equity grant agreement terms in 2023.
 Facilities and Other. Facilities and other consists of indirect costs incurred for the benefit of multiple programs, including depreciation, information technology, and other facility-based expenses, such as rent expense.
 For 2024 compared to 2023, the increase primarily reflected increased facility-based expenses related to our new campus facility.
 Acquired In-Process Research and Development (IPR&D)

 2024
 2023
 2022

 Acquired in-process research and development
 $
 12.5
 $
 143.9
 $
 —

 For 2024, IPR&D expense primarily reflected the payment of a $6.0 million upfront fee pursuant to our collaboration with Biocytogen Pharmaceuticals (Beijing) Co., Ltd.
 For 2023, IPR&D expense reflected the payment of a $143.9 million upfront fee pursuant to the expansion of our collaboration with Voyager.
 Selling, General, and Administrative (SG&A)

 2024
 2023
 2022

 Selling, general, and administrative
 $
 1,007.2
 $
 887.6
 $
 752.7

 For 2024 compared to 2023, the increase primarily reflected continued investment in our commercial organization, including the recent expansion of our psychiatry and long-term care sales team in September 2024, pre-launch CRENESSITY activities, increased facility expenses related to our new campus facility, and impairment charges of $14.0 million associated with leased office space that has been vacated as we continue to occupy our new campus facility.
 For 2023 compared to 2022, the increase primarily reflected increased investment in our commercial initiatives, including our branded direct-to-consumer INGREZZA advertising campaign and deployment of our expanded salesforce completed in April 2022, and increased payroll and benefits expenses on higher headcount and increased non-cash stock-based compensation expense primarily driven by a charge related to a change in equity grant agreement terms in 2023.

 Other (Expense) Income, Net

 2024
 2023
 2022

 Unrealized (loss) gain on equity investments
 $
 (37.1)
 $
 28.4
 $
 30.8

 (138.4)
 —
 (70.0)

 Investment income and other, net
 91.0
 52.8
 4.1

 Total other (expense) income, net
 $
 (84.5)
 $
 81.2
 $
 (35.1)

 For 2024 compared to 2023, the increase in total other expense, net, primarily reflected $138.4 million of expense recognized in connection with conversions of the 2024 Notes upon maturity in May 2024 and periodic fluctuations in the fair values of our equity investments, partially offset by increased interest income on our debt security investments.
 For 2023 compared to 2022, the increase in total other income, net, primarily reflected increased interest income on our debt security investments and decreased debt extinguishment charges in connection with the repurchase of the 2024 Notes in 2022.
 Provision for Income Taxes

 2024
 2023
 2022

 $
 144.7
 $
 82.4
 $
 59.4

 For 2024 and 2023, the effective tax rate varied from the federal and state statutory rates primarily due to credits generated for research activities, certain nondeductible expenses, excess tax benefits related to stock-based compensation, and losses incurred in foreign jurisdictions for which no tax benefit was recorded as management cannot conclude that it is more likely than not that the tax benefit of such losses will be realized in the future. Additionally, in 2024, we incurred a loss on the extinguishment of debt that was nondeductible for tax purposes.
 For 2022, the effective tax rate varied from the federal and state statutory rates primarily due to credits generated for research activities and certain nondeductible expenses, including the premium paid on the repurchase of the 2024 Notes in 2022.
 Net Income

 2024
 2023
 2022

 $
 341.3
 $
 249.7
 $
 154.5

 For 2024 compared to 2023, the increase primarily reflected increased INGREZZA net product sales and decreased total payments for upfront fees and development milestones achieved in connection with our collaborations, partially offset by $138.4 million of expense recognized in connection with conversions of the 2024 Notes upon maturity in May 2024, periodic fluctuations in the fair values of our equity investments, and continued investments in our commercial organization, including pre-launch CRENESSITY activities, and expanded pre-clinical and clinical portfolios.
 For 2023 compared to 2022, the increase primarily reflected increased INGREZZA net product sales, increased interest income on our debt security investments, and decreased debt extinguishment charges in connection with the repurchase of the 2024 Notes in 2022, partially offset by increased total payments for upfront fees and development milestones achieved in connection with our collaborations and increased investments in our commercial initiatives and expanded clinical portfolio.

 Liquidity and Capital Resources
 Sources of Liquidity
 We believe that our existing capital resources, funds generated by anticipated INGREZZA net product sales, and investment income will be sufficient to satisfy our current and projected funding requirements for at least the next 12 months. However, we cannot guarantee that our existing capital resources and anticipated revenues will be sufficient to conduct and complete all of our research and development programs or commercialization activities as planned. We may seek to access the public or private equity markets whenever conditions are favorable or pursue opportunities to obtain debt financing in the future. We may also seek additional funding through strategic alliances or other financing mechanisms. However, we cannot provide assurance that adequate funding will be available on terms acceptable to us, if at all.
 Information Regarding Our Financial Condition

 2024
 2023

 Total cash, cash equivalents and marketable securities

 $
 1,815.6
 $
 1,719.1

 Working Capital:

 Total current assets
 $
 1,724.7
 $
 1,607.0

 Less total current liabilities
 507.7
 654.8

 Total working capital
 $
 1,217.0
 $
 952.2

 Information Regarding Our Cash Flows

 2024
 2023
 2022

 Cash flows from operating activities
 $
 595.4
 $
 389.9
 $
 339.4

 Cash flows from investing activities
 (126.8)
 (467.1)
 (177.1)

 Cash flows from financing activities
 (486.7)
 65.3
 (234.3)

 Effect of exchange rate changes on cash and cash equivalents
 —
 0.3
 (1.3)

 Change in cash, cash equivalents and restricted cash
 $
 (18.1)
 $
 (11.6)
 $
 (73.3)

 Cash Flows from Operating Activities
 For 2024 compared to 2023, the increase primarily reflected increased INGREZZA net product sales and decreased total payments for upfront fees and development milestones achieved in connection with our collaborations, partially offset by increased payments for income taxes and continued investments in our commercial organization, including pre-launch CRENESSITY activities, and expanded pre-clinical and clinical portfolios.
 For 2023 compared to 2022, the increase primarily reflected increased INGREZZA net product sales, partially offset by increased total payments for upfront fees and development milestones achieved in connection with our collaborations and increased investment in our commercial initiatives and expanded clinical portfolio.
 Cash Flows from Investing Activities
 Periodic fluctuations for all periods presented reflected timing differences related to our purchases, sales, and maturities of debt security investments and changes in our portfolio-mix.
 For 2023, cash flows from investing activities also reflected a $31.3 million equity investment in Voyager.
 For 2022, cash flows from investing activities also reflected the acquisition of Diurnal Group plc for $42.7 million in cash (net of cash acquired) and a $7.7 million equity investment in Xenon.

 Cash Flows from Financing Activities
 Cash flows from financing activities for all periods presented reflected proceeds from issuances of our common stock.
 For 2024 compared to 2023, cash flows from financing activities also reflected a $300.0 million payment to a third-party financial institution to repurchase shares of the Company's common stock under a share repurchase program that was authorized by our Board of Directors in October 2024 and the settlement of the 2024 Notes in full for $308.8 million in cash.
 For 2023 compared to 2022, cash flows from financing activities also reflected the repurchase of $210.8 million aggregate principal amount of the 2024 Notes for an aggregate repurchase price of $279.0 million in cash.

 Material Cash Requirements
 In the pharmaceutical industry, it can take a significant amount of time and capital resources to successfully complete all stages of research and development and commercialize a product candidate, which ultimate length of time and spend required cannot be accurately estimated as it varies substantially according to the type, complexity, novelty and intended use of a product candidate.
 The funding necessary to execute our business strategies is subject to numerous uncertainties and we may be required to make substantial expenditures if unforeseen difficulties arise in certain areas of our business. In particular, our future capital requirements will depend on many factors, including:
 • the commercial success of INGREZZA and CRENESSITY;
 • continued scientific progress in our research and clinical development programs;
 • the magnitude and complexity of our research and development programs;
 • progress with preclinical testing and clinical trials;
 • the time and costs involved in obtaining regulatory approvals;
 • the costs involved in filing and pursuing patent applications, enforcing patent claims, or engaging in interference proceedings or other patent litigation;
 • costs associated with securing adequate coverage and reimbursement for our products;
 • competing technological and market developments;
 • developments related to any future litigation;
 • the cost of commercialization activities and arrangements, including our advertising campaigns; and
 • the cost of manufacturing our product candidates.
 In addition to the foregoing factors, we have significant future capital requirements, including:
 External Business Developments
 In addition to our independent efforts to develop and market products, we may enter into collaboration and license agreements or acquire businesses from time-to-time to enhance our drug development and commercial capabilities. With respect to our existing collaboration and license agreements, we may be required to make potential future payments of up to $17.7 billion upon the achievement of certain milestones.
 Refer to Note 2 to the consolidated financial statements for more information on our significant collaboration and license agreements.

 Critical Accounting Policies and Estimates
 Our discussion and analysis of our financial condition and results of operations is based upon financial statements that we have prepared in accordance with accounting principles generally accepted in the United States of America (GAAP). The preparation of these financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities and expenses, and related disclosures. On an on-going basis, we evaluate these estimates, including those related to revenue recognition. Estimates are based on historical experience, information received from third parties and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. Historically, revisions to our estimates have not resulted in a material change to the financial statements.
 The items in our financial statements requiring significant estimates and judgments are as follows:
 Reserves for Government Rebates
 We recognize revenues from product sales of INGREZZA net of reserves established for applicable discounts and allowances that are offered within contracts with our customers, payors, and other third parties. Such reserves include estimates for government rebates that we are obligated to pay for discounts including under the Medicaid Drug Rebate Program and Medicare Part D. The liability for such rebates consists of invoices received for claims from prior quarters that remain unpaid, or for which an invoice has not been received, and estimated rebates for the current applicable reporting period. Such estimates require us to project the magnitude of our sales that will be subject to such rebates and are based on actual historical rebates by state, estimated payor mix, state and federal regulations, and relevant contractual terms, as supplemented by management's judgement. There is a significant time-lag in our receiving rebate notices from each state (generally, several months or longer after a sale is recognized). To date, actual government rebates have not differed materially from our estimates.
 Income Taxes
 Our income tax provision is computed under the asset and liability method. Significant estimates are required in determining our income tax provision. Some of these estimates are based on interpretations of existing tax laws or regulations. We recognize deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements or tax returns. Under this method, deferred tax assets and liabilities are determined on the basis of the difference between the tax basis of assets and liabilities and their respective financial reporting amounts (temporary differences) at enacted tax rates in effect for the years in which the differences are expected to reverse. A valuation allowance is established for deferred tax assets for which it is more likely than not that some portion or all of the deferred tax assets, including net operating losses and tax credits, will not be realized. We periodically re-assess the need for a valuation allowance against our deferred tax assets based on various factors including our historical earnings experience by taxing jurisdiction, and forecasts of future operating results and utilization of net operating losses and tax credits prior to their expiration. Significant judgment is required in making this assessment and, to the extent that a reversal of any portion of our valuation allowance against our deferred tax assets is deemed appropriate, a tax benefit will be recognized against our income tax provision in the period of such reversal.

 Additional Information
 Refer to Note 1 to the consolidated financial statements for information on accounting pronouncements that have impacted or are expected to materially impact our consolidated financial condition, results of operations, or cash flows.

 Item 7A. Quantitative and Qualitative Disclosures About Market Risk
 Interest Rate Risk
 We maintain a diversified investment portfolio consisting of low-risk, investment-grade debt securities with maturities of up to three years, including investments in commercial paper, securities of government-sponsored entities and corporate bonds that are subject to interest rate risk. The primary objective of our investment activities is to preserve principal and maintain liquidity. If a 1% unfavorable change in interest rates were to have occurred on December 31, 2024, it would not have had a material effect on the fair value of our investment portfolio as of that date.

 Item 8. Financial Statements and Supplementary Data

 INDEX TO THE CONSOLIDATED FINANCIAL STATEMENTS

 Page

 Report of Independent Registered Public Accounting Firm (PCAOB ID: 42)

 Consolidated Balance Sheets

 Consolidated Statements of Income and Comprehensive Income

 Consolidated Statements of Stockholders' Equity

 Consolidated Statements of Cash Flows

 Notes to the Consolidated Financial Statements

 Report of Independent Registered Public Accounting Firm
 To the Stockholders and the Board of Directors of Neurocrine Biosciences, Inc.
 Opinion on the Financial Statements
 We have audited the accompanying consolidated balance sheets of Neurocrine Biosciences, Inc. (the Company) as of December 31, 2024 and 2023, the related consolidated statements of income and comprehensive income, stockholders' equity and cash flows for each of the three years in the period ended December 31, 2024, and the related notes (collectively referred to as the "consolidated financial statements"). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2024, in conformity with U.S. generally accepted accounting principles.
 We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 10, 2025 expressed an unqualified opinion thereon.
 Basis for Opinion
 These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
 We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.
 Critical Audit Matter
 The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the account or disclosure to which it relates.

 Reserves for government rebates related to product sales

 Description of the Matter
 The Company sells product to specialty pharmacies and specialty distributors in the U.S. (collectively, "customers"). As described in Note 1 to the consolidated financial statements, the Company recognizes revenues for sales of INGREZZA to its customers after deducting management's estimates of reserves, including drug coverage gap rebates, it will provide under government rebate programs ("government rebates"). Estimated government rebates are presented within accounts payable and accrued liabilities on the consolidated balance sheet.

 Auditing the estimates of government rebates was complex and judgmental due to the level of uncertainty involved in management's assumptions used in the measurement process. In particular, management was required to estimate the portion of product that is expected to be subject to a government rebate and the applicable contractual government rebate percentage by payor type underlying the revenue and the applicable rebate amount applicable for the payor type.

 How We Addressed the Matter in Our Audit
 We tested the Company's internal controls over management's process for estimating the portion of product that is expected to be subject to a government rebate for product that remains in the distribution channel at December 31, 2024. This included controls over management's review of significant assumptions and other inputs into the estimation of government rebates including the accuracy of data used in the calculation.

 To test management's estimate of government rebate reserves our audit procedures included, among others, evaluating the methodologies used, testing the significant assumptions discussed above and testing the completeness and accuracy of the underlying data used by the Company in its analyses. Specifically, we compared the significant assumptions to third-party reports used by the Company to estimate product remaining in the distribution channel at December 31, 2024. In addition, we compared the underlying government rebate percentages used in the Company's analyses to those published by the applicable government entity. We assessed the historical accuracy of management's rebate estimates, tested payments of rebates and performed a sensitivity analysis of significant assumptions to evaluate the changes in the rebate allowance that would result from changes in the assumptions.

 /s/ Ernst & Young LLP
 We have served as the Company's auditor since 1992.
 San Diego, California
 February 10, 2025

 CONSOLIDATED BALANCE SHEETS

 (in millions, except per share data)
 2024
 2023

 Assets

 Current assets:

 Cash and cash equivalents
 $
 233.0
 $
 251.1

 Available-for-sale debt securities
 843.1
 780.5

 Accounts receivable

 479.1
 439.3

 Inventory

 57.4
 38.3

 Other current assets
 112.1
 97.8

 Total current assets
 1,724.7
 1,607.0

 Deferred tax assets
 485.7
 362.6

 Available-for-sale debt securities
 739.5
 687.5

 Right-of-use assets
 509.4
 276.5

 Equity investments
 124.8
 161.9

 Property and equipment, net
 82.6
 70.8

 Intangible assets, net
 36.5
 35.5

 Other noncurrent assets
 15.5
 49.6

 Total assets
 $
 3,718.7
 $
 3,251.4

 Liabilities and Stockholders' Equity

 Current liabilities:

 Accounts payable and accrued liabilities
 $
 461.6
 $
 448.8

 Convertible senior notes
 —
 170.1

 Other current liabilities
 46.1
 35.9

 Total current liabilities
 507.7
 654.8

 Noncurrent operating lease liabilities
 455.1
 258.3

 Other noncurrent liabilities
 166.2
 106.3

 Total liabilities
 1,129.0
 1,019.4

 Stockholders' equity:

 Preferred stock, $ 0.001 par value; 5.0 shares authorized; no shares issued and outstanding

 —
 —

 Common stock, $ 0.001 par value; 220.0 shares authorized; 99.4 and 98.7 shares issued and outstanding, respectively

 0.1
 0.1

 Additional paid-in capital
 2,554.6
 2,382.0

 Accumulated other comprehensive income
 5.8
 7.0

 Retained earnings (accumulated deficit)

 29.2
 ( 157.1)

 Total stockholders' equity
 2,589.7
 2,232.0

 Total liabilities and stockholders' equity
 $
 3,718.7
 $
 3,251.4

 See accompanying notes to consolidated financial statements.

 CONSOLIDATED STATEMENTS INCOME
 AND COMPREHENSIVE INCOME

 (in millions, except per share data)
 2024
 2023
 2022

 Revenues:

 Net product sales

 $
 2,330.6
 $
 1,860.6
 $
 1,440.9

 Collaboration revenue

 24.7
 26.5
 47.8

 Total revenues

 2,355.3
 1,887.1
 1,488.7

 Operating expenses:

 Cost of revenues
 34.0
 39.7
 23.2

 Research and development
 731.1
 565.0
 463.8

 Acquired in-process research and development
 12.5
 143.9
 —

 Selling, general, and administrative
 1,007.2
 887.6
 752.7

 Total operating expenses
 1,784.8
 1,636.2
 1,239.7

 Operating income
 570.5
 250.9
 249.0

 Other (expense) income:

 Unrealized (loss) gain on equity investments
 ( 37.1)
 28.4
 30.8

 ( 138.4)
 —
 ( 70.0)

 Interest income and other, net
 91.0
 52.8
 4.1

 Total other (expense) income, net
 ( 84.5)
 81.2
 ( 35.1)

 Income before provision for income taxes
 486.0
 332.1
 213.9

 144.7
 82.4
 59.4

 341.3
 249.7
 154.5

 Foreign currency translation adjustments, net of tax

 ( 1.1)
 2.4
 2.9

 Unrealized gain (loss) on available-for-sale debt securities, net of tax

 12.5
 ( 9.1)

 Comprehensive income
 $
 340.1
 $
 264.6
 $
 148.3

 Earnings per share, basic
 $
 3.40
 $
 2.56
 $
 1.61

 Earnings per share, diluted
 $
 3.29
 $
 2.47
 $
 1.56

 Weighted average common shares outstanding, basic
 100.4
 97.7
 95.8

 Weighted average common shares outstanding, diluted
 103.7
 101.0
 98.9

 See accompanying notes to consolidated financial statements.

 CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

 Common Stock
 Additional
Paid-In Capital
 Accumulated
Other
Comprehensive Income (Loss)
 Retained Earnings (Accumulated Deficit)

 Total Stockholders' Equity

 Shares
 $

 Balances at December 31, 2021
 94.9
 $
 0.1
 $
 2,011.4
 $
 ( 1.7)
 $
 ( 635.8)
 $
 1,374.0

 —
 —
 —
 —
 154.5
 154.5

 Other comprehensive loss, net of tax
 —
 —
 —
 ( 6.2)
 —
 ( 6.2)

 Cumulative-effect adjustment due to adoption of ASU 2020-06
 —
 —
 ( 106.8)
 —
 74.5
 ( 32.3)

 —
 —
 173.1
 —
 —
 173.1

 Issuances of common stock under stock plans
 1.6
 —
 44.7
 —
 —
 44.7

 Balances at December 31, 2022
 96.5
 $
 0.1
 $
 2,122.4
 $
 ( 7.9)
 $
 ( 406.8)
 $
 1,707.8

 —
 —
 —
 —
 249.7
 249.7

 Other comprehensive income, net of tax
 —
 —
 —
 14.9
 —
 14.9

 —
 —
 194.3
 —
 —
 194.3

 Issuances of common stock under stock plans
 2.2
 —
 65.3
 —
 —
 65.3

 Balances at December 31, 2023
 98.7
 $
 0.1
 $
 2,382.0
 $
 7.0
 $
 ( 157.1)
 $
 2,232.0

 —
 —
 —
 —
 341.3
 341.3

 Other comprehensive income, net of tax
 —
 —
 —
 ( 1.2)
 —
 ( 1.2)

 —
 —
 195.5
 —
 —
 195.5

 Issuances of common stock under stock plans
 2.7
 —
 122.1
 —
 —
 122.1

 Repurchases of common stock under accelerated buyback agreements
 ( 2.0)
 —
 ( 145.0)
 —
 ( 155.0)
 ( 300.0)

 Balances at December 31, 2024
 99.4
 $
 0.1
 $
 2,554.6
 $
 5.8
 $
 29.2
 $
 2,589.7

 See accompanying notes to consolidated financial statements.

 CONSOLIDATED STATEMENTS OF CASH FLOWS

 2024
 2023
 2022

 Cash flows from operating activities:

 $
 341.3
 $
 249.7
 $
 154.5

 Adjustments to reconcile net income to net cash from operating activities:

 195.5
 194.3
 173.1

 138.4
 —
 70.0

 Depreciation
 23.5
 17.8
 15.1

 (Accretion) amortization of (discount) premium on investments, net

 ( 26.2)
 ( 18.3)
 3.7

 Amortization of intangible assets
 3.6
 3.5
 0.5

 Changes in fair values of equity investments
 37.1
 ( 28.4)
 ( 30.8)

 Deferred income taxes

 ( 123.1)
 ( 56.7)
 19.1

 Other
 24.5
 1.6

 Changes in operating assets and liabilities:

 Accounts receivable
 ( 39.8)
 ( 89.3)
 ( 162.2)

 Inventory

 ( 19.1)
 5.4
 ( 2.6)

 Accounts payable and accrued liabilities
 29.0
 64.3
 114.6

 Other assets and liabilities, net
 10.7
 47.8
 ( 17.2)

 Cash flows from operating activities
 595.4
 389.9
 339.4

 Cash flows from investing activities:

 Purchases of available-for-sale debt securities
 ( 1,056.1)
 ( 1,379.9)
 ( 621.2)

 Sales and maturities of available-for-sale debt securities
 967.5
 972.4
 511.0

 Acquisition of business, net of cash acquired
 —
 —
 ( 42.7)

 Purchases of equity investments
 —
 ( 31.3)
 ( 7.7)

 Capital expenditures
 ( 38.2)
 ( 28.3)
 ( 16.5)

 Cash flows from investing activities
 ( 126.8)
 ( 467.1)
 ( 177.1)

 Cash flows from financing activities:

 Issuances of common stock under benefit plans
 122.1
 65.3
 44.7

 Repurchases of common stock under accelerated buyback agreements
 ( 300.0)
 —
 —

 Payments associated with convertible senior notes
 ( 308.8)
 —
 ( 279.0)

 Cash flows from financing activities
 ( 486.7)
 65.3
 ( 234.3)

 Effect of exchange rate changes on cash and cash equivalents
 —
 0.3
 ( 1.3)

 Change in cash and cash equivalents and restricted cash
 ( 18.1)
 ( 11.6)
 ( 73.3)

 Cash, cash equivalents and restricted cash at beginning of period

 259.1
 270.7
 344.0

 Cash, cash equivalents and restricted cash at end of period

 $
 241.0
 $
 259.1
 $
 270.7

 Supplemental Disclosure:

 Accrued capital expenditures
 $
 2.2
 $
 2.5
 $
 0.7

 Right-of-use assets acquired through operating leases
 $
 271.6
 $
 200.8
 $
 —

 Cash paid for interest
 $
 1.6
 $
 3.8
 $
 6.6

 Cash paid for income taxes
 $
 217.5
 $
 51.5
 $
 14.4

 See accompanying notes to consolidated financial statements.

 NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

 1. Business Overview and Summary of Significant Accounting Policies
 Nature of Operations
 Neurocrine Biosciences, Inc. and its subsidiaries (Neurocrine Biosciences, the Company, we, our, or us) is a neuroscience-focused global biopharmaceutical company focused on discovering, developing, and delivering innovative therapies to help ease the burden of debilitating disorders and diseases.
 Use of Estimates
 The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP), which requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements. Actual results could differ from those estimates.
 Basis of Consolidation
 The consolidated financial statements include the accounts of Neurocrine Biosciences as well as our wholly owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.
 Revenue Recognition
 We recognize revenue when the customer obtains control of promised goods or services in an amount that reflects the consideration which we expect to receive in exchange for such goods or services. Revenue is recognized using a five-step model: (i) identify contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenues when (or as) we satisfy the performance obligation.
 Product Revenue
 We sell INGREZZA (valbenazine) in the U.S. primarily to specialty pharmacy providers and distributors and CRENESSITYTM (crinecerfont) in the U.S. to a specialty pharmacy provider. Net product sales of INGREZZA totaled $ 2.3 billion for 2024, $ 1.8 billion for 2023, and $ 1.4 billion for 2022 and accounted for substantially all of our total net product sales during each of these years.
 Product revenue is recorded net of reserves for variable consideration, including discounts and allowances offered within contracts with our customers, payors, and other third parties. These reserves, classified as reductions of accounts receivable or liabilities, are based on estimates and include the following categories:
 • Product discounts represent estimated obligations for trade term discounts and other incentives offered to our customers. We accrue for product discounts based on actual historical discounts, including the timing of customer payments.
 • Distributor and other fees represent fees for inventory management, data, and distribution services and are generally recorded as a reduction of revenue or expensed as selling, general, and administrative to the extent we can demonstrate a separable benefit and fair value for these services.
 • Government rebates represent estimated obligations to government agencies under the Medicaid Drug Rebate Program and Medicare Part D and are recorded as a reduction of revenue in the period the related revenue is recognized. We accrue for government rebates based on estimated claims for the current quarter, estimated claims for prior quarters for which an invoice has not been received, and claims for prior quarters for which an invoice has been received but not paid.
 • Chargebacks represent estimated obligations to our customers for differences between list and contract prices. We accrue for chargebacks as a reduction of revenue based on estimated contractual discounts on product inventory levels on-hand in our distribution channel.
 • Payor and pharmacy rebates represent estimated obligations to payors and pharmacies for contract discounts on product sales and are recorded as a reduction of revenue in the period the related revenue is recognized. We accrue for payor and pharmacy rebates based on actual historical rebates, contractual rebate percentages, sales made through the payor channel, and purchases made by pharmacies.

 • Copay assistance represents financial assistance to qualified patients with prescription drug copay requirements. We accrue for copay assistance as a reduction of revenue based on estimated claims and the cost per claim we expect to receive in connection with inventory that exists in the distribution channel at period end.
 • Product returns represent estimated obligations for return rights offered to our customers due to shipment errors and damaged product and are recorded as a reduction of revenue in the period the related revenue is recognized. We accrue for product returns based on actual historical returns, benchmarking data, and industry experience.
 Collaboration Revenues
 We have entered into collaboration and license agreements under which we out-license certain rights to our product candidates to third parties. For arrangements that include sales-based royalties, and under which the license is deemed to be the predominant item to which the royalties relate, we recognize revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied). Each quarterly period, sales-based royalties are recorded based on estimated quarterly net sales of the associated collaboration products. Differences between actual results and estimated amounts are adjusted for in the period in which they become known, which typically follows the quarterly period in which the estimate was made. To date, actual royalties received have not differed materially from our estimates.
 Cash Equivalents
 We consider all highly liquid investments that are readily convertible into cash without penalty and have an original maturity of three months or less at the time of purchase to be cash equivalents.
 Accounts Receivable
 Accounts receivable are recorded net of customer allowances for prompt payment discounts, chargebacks, and any allowance for credit losses. Our estimate for the allowance for credit losses, which has not been significant to date, is determined based on existing contractual payment terms, actual payment patterns of our customers, and individual customer circumstances.
 Our exposure to credit losses may increase if our customers are adversely affected by changes in healthcare laws, coverage and reimbursement, economic pressures or uncertainty associated with local or global economic recessions, or other customer-specific factors.
 Debt Securities
 Debt securities consist of investments in certificates of deposit, corporate debt securities, and securities of government-sponsored entities. We classify debt securities as available-for-sale. Available-for-sale debt securities are recorded at fair value, with unrealized gains and losses included in other comprehensive income or loss, net of tax. We exclude accrued interest from both the fair value and amortized cost basis of debt securities. A debt security is placed on nonaccrual status at the time any principal or interest payments become 90 days delinquent. Interest accrued but not received for a debt security placed on nonaccrual status is reversed against interest income.
 Interest income includes amortization (accretion) of purchase premiums (discounts). Premiums (discounts) on debt securities are amortized (accreted) using the effective interest rate method. Gains and losses on sales of debt securities are recorded on the trade date in investment income and other, net, and determined using the specific identification method.

 Allowance for Credit Losses
 For available-for-sale debt securities in an unrealized loss position, we first assess whether we intend to sell, or it is more likely than not that we will be required to sell, the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security's amortized cost basis is written down to fair value through earnings. For available-for-sale debt securities that do not meet the aforementioned criteria, we evaluate whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, we consider the extent to which fair value is less than amortized cost, any changes in interest rates, and any changes to the rating of the security by a rating agency, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security is compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded, limited by the amount that the fair value is less than the amortized cost basis. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income or loss, as applicable.
 Accrued interest receivables on available-for-sale debt securities were $ 14.4 million and $ 11.2 million, respectively, as of December 31, 2024 and 2023. We do not measure an allowance for credit losses for accrued interest receivables. For the purposes of identifying and measuring an impairment, accrued interest is excluded from both the fair value and amortized cost basis of the debt security. Uncollectible accrued interest receivables associated with an impaired debt security are reversed against interest income upon identification of the impairment. No accrued interest receivables were written off during 2024, 2023, or 2022.
 Concentration of Credit Risk
 Financial instruments that potentially subject us to concentrations of credit risk include cash and cash equivalents, investments in debt securities, and accounts receivable.
 To minimize the risks related to cash and cash equivalents and investments in debt securities, we have established guidelines related to credit ratings and maturities intended to safeguard principal balances and maintain liquidity. Our investment portfolio is maintained in accordance with our investment policy, which defines allowable investments, specifies credit quality standards, and limits the credit exposure of any single issuer.
 To minimize the risks related to accounts receivable, which are typically unsecured, we monitor the financial performance and creditworthiness of our customers so that we can properly assess and respond to changes in their credit profiles.
 The following table presents the percent of total gross product sales and total accounts receivable for each of our customers who individually accounted for 10% or more of total gross product sales and/or 10% or more of total accounts receivable.

 Percent of
 Percent of

 Total Gross Product Revenues
 Accounts Receivable

 2024
 2023
 2022
 2024
 2023

 Customer A
 %
 %
 %
 %
 %

 Customer B
 %
 %
 %
 %
 %

 Customer C
 %
 %
 %
 %
 %

 Customer D
 < 10 %
 %
 %
 < 10 %
 < 10 %

 Equity Investments
 We account for certain equity investments subject to the equity method of accounting, or through which we have the ability to exercise significant influence (but not control) over the operating and financial policies of an investee, under the fair value option. In assessing whether we exercise significant influence, we consider the nature and magnitude of such an investment, the voting and protective rights we hold, any participation in the governance of the investee and other relevant factors, such as the presence of a collaborative or other business relationship. Such investments in publicly traded companies are currently classified within Level 1 of the fair value hierarchy and carried at fair value, with any changes in the fair value of such investments recognized in earnings.

 Fair Value of Financial Instruments
 We record cash equivalents, debt securities available-for-sale and equity security investments at fair value based on a fair value hierarchy that distinguishes between assumptions based on market data (observable inputs) and our own assumptions (unobservable inputs). The fair value hierarchy consists of the following three levels:
 Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities.
 Level 2 – Quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability.
 Level 3 – Unobservable inputs that reflect our own assumptions about the assumptions that market participants would use in pricing the asset or liability when there is little, if any, market activity for the asset or liability at the measurement date.
 Investments in debt securities available-for-sale are classified as Level 2 and carried at fair value. We estimate the fair value of debt securities available-for-sale by utilizing third-party pricing services. These pricing services utilize industry standard valuation models, including both income and market-based approaches, for which all significant inputs are observable, either directly or indirectly, to estimate fair value. Such inputs include market pricing based on real-time trade data for similar instruments, issuer credit spreads, benchmark yields, broker/dealer quotes and other observable inputs. We validate valuations obtained from third-party pricing services by understanding the models used, obtaining market values from other pricing sources and analyzing data in certain instances.
 We deem transfers between levels of the fair value hierarchy to have occurred at the end of the reporting period during which the event or change in circumstances that caused the transfer occurred.
 Inventory
 Inventory is valued at the lower of cost or net realizable value. We determine the cost of inventory using the standard-cost method, which approximates actual cost based on the first-in, first-out method. We perform an assessment of the recoverability of our inventory on a quarterly basis and write down any excess and obsolete inventory to its net realizable value in the period in which the impairment is first identified. When future commercialization is considered probable and the future economic benefit is expected to be realized, based on management's judgment, we capitalize pre-launch inventory costs prior to regulatory approval.
 Prior to U.S. Food and Drug Administration (FDA) approval of CRENESSITY in December 2024, all costs related to its manufacturing were expensed as research and development (R&D) in the period incurred. As a result, our physical inventory as of December 31, 2024 included active pharmaceutical product with no cost basis. Costs related to the manufacturing of bulk drug product, finished bottling, and other labeling activities that occurred post-FDA approval are included in the inventory value as of December 31, 2024.
 Leases
 We determine if an arrangement is a lease at contract inception. Right-of-use (ROU) assets represent our right to use an underlying asset for the lease term and operating lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and operating lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. When determining the lease term, we include options to extend or terminate the lease when it is reasonably certain that such options will be exercised.
 As none of our operating leases provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. Our incremental borrowing rate is determined using a secured borrowing rate for the same currency and term as the associated lease.
 The lease payments used to determine our ROU assets may include prepaid or accrued lease payments and any lease incentives received and are recognized in ROU assets on our consolidated balance sheets.
 Our lease agreements may include both lease and non-lease components, which we account for as a single lease component when the payments are fixed. Variable payments included in lease agreements are expensed as incurred.
 Our operating leases are reflected in ROU assets, noncurrent operating lease liabilities, and other current liabilities on our consolidated balance sheets. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term.

 Impairment of ROU Assets
 ROU assets are reviewed for impairment when indicators of impairment are present. ROU assets are tested for impairment individually or as part of an asset group if the cash flows related to the ROU asset are not independent from the cash flows of other assets and liabilities. An asset group is the unit of accounting for long-lived assets to be held and used, which represents the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities.
 Corporate ROU assets that are actively being marketed for sublease in connection with excess leased capacity are tested for impairment individually when the cash flows related to the ROU asset are determined to be independent from the cash flows of other assets and liabilities. Corporate ROU assets are otherwise tested for impairment on a consolidated level with consideration given to all cash flows of the company as corporate functions do not generate cash flows and are funded by revenue-producing activities at lower levels of the entity.
 Property and Equipment
 Property and equipment are stated at cost and depreciated over the estimated useful lives of the assets using the straight-line method. Equipment is depreciated over an average estimated useful life of 3 to 7 years. Leasehold improvements are depreciated over the shorter of their estimated useful lives or the remaining lease term. Depreciation expense was $ 23.5 million for 2024, $ 17.8 million for 2023, and $ 15.1 million for 2022.
 Goodwill, Intangible Assets, and Other Long-Lived Assets
 Assets acquired, including intangible assets and in-process research and development (IPR&D) and liabilities assumed are measured at fair value as of the acquisition date. Goodwill, which has an indefinite useful life, represents the excess of cost over fair value of the net assets acquired. Intangible assets acquired in a business combination that are used for IPR&D activities are considered indefinite lived until the completion or abandonment of the associated research and development efforts. Upon reaching the end of the relevant research and development project (i.e., upon commercialization), the IPR&D asset is amortized over its estimated useful life. If the relevant research and development project is abandoned, the IPR&D asset is expensed in the period of abandonment.
 Goodwill and IPR&D are not amortized; however, they are reviewed for impairment at least annually, as of October 1, and more frequently if an event occurs indicating the potential for impairment. Goodwill and IPR&D are considered to be impaired if the carrying value of the reporting unit or IPR&D asset exceeds its respective fair value.
 We perform our goodwill impairment analysis at the reporting unit level, which aligns with our reporting structure and availability of discrete financial information. During the goodwill impairment review, we assess qualitative factors to determine whether it is more likely than not that the fair value of the reporting unit is less than the carrying amount, including goodwill. The qualitative factors include, but are not limited to, macroeconomic conditions, industry and market considerations, and our overall financial performance. If, after assessing the totality of these qualitative factors, we determine that it is not more likely than not that the fair value of the reporting unit is less than the carrying amount, then no additional assessment is deemed necessary. Otherwise, we proceed to compare the estimated fair value of the reporting unit with the carrying value, including goodwill. If the carrying amount of the reporting unit exceed the fair value, we record an impairment loss based on the difference. We may elect to bypass the qualitative assessment in a period and proceed to perform the quantitative goodwill impairment test.
 Our identifiable intangible assets with a finite life are typically comprised of acquired product rights. The cost of identifiable intangible assets with finite lives is generally amortized on a straight-line basis over the assets' respective estimated useful lives.
 We perform regular reviews to determine if any event has occurred that may indicate that intangible assets with finite useful lives and other long-lived assets are potentially impaired. If indicators of impairment exist, an impairment test is performed to assess the recoverability of the affected assets by determining whether the carrying amount of such assets exceeds the undiscounted expected future cash flows. If the affected assets are not recoverable, we estimate the fair value of the assets and record an impairment loss if the carrying value of the assets exceeds the fair value. Factors that may indicate potential impairment include a significant decline in our stock price and market capitalization compared to the net book value, significant changes in the ability of a particular asset to generate positive cash flows for our strategic business objectives, and the pattern of utilization of a particular asset.

 Share Repurchases
 Shares repurchased pursuant to our share repurchase program are immediately retired upon purchase. Repurchased common stock is reflected as a reduction of stockholders' equity by reducing our common stock for the par value of the shares repurchased and reducing our capital surplus for the excess of the repurchase price over the par value. The excess over the par value of the shares repurchased is recorded as a reduction to retained earnings to the extent available, with any remainder recorded as a reduction to additional paid-in capital.
 Cost of Revenues
 Cost of revenues includes third-party manufacturing, transportation, freight, and indirect overhead costs primarily for the manufacture and distribution of INGREZZA drug product sold, manufacturing costs in connection with our supply of valbenazine drug product under our collaboration with Mitsubishi Tanabe Pharma Corporation, royalties on net sales of CRENESSITY and elagolix, amortization of intangible assets, and adjustments for excess and obsolete inventory to the extent management determines that the cost cannot be recovered based on estimates about future demand.
 Research and Development
 R&D expenses primarily consist of preclinical and clinical trial costs, payroll and benefits costs, including stock-based compensation associated with employees involved in R&D activities, certain facility-based costs, and certain costs associated with our collaborative arrangements. All such costs are expensed as R&D when incurred.
 Collaborations and Other Arrangements
 We enter into collaborative agreements with third parties to develop and commercialize drug candidates. Collaborative activities may include joint R&D and commercialization of new products. We generally receive certain licensing rights under these arrangements. These collaborations often require upfront payments and may include additional milestone, R&D cost sharing, royalty, or profit share payments, contingent upon the occurrence of certain future events linked to the success of the asset in development and commercialization. Upfront payments associated with collaborative arrangements are generally expensed as IPR&D. Amounts paid or payable to the partner in connection with the achievement of development milestones prior to regulatory approval are expensed as R&D when such milestones are achieved. Regulatory and commercial milestone payments made to the partner subsequent to regulatory approval are capitalized as intangible assets and amortized to cost of revenues over the estimated useful life of the related asset. Royalties are expensed as cost of revenues when incurred.
 Asset Acquisitions
 We account for acquisitions of assets (or groups of assets) that do not meet the definition of a business using the cost accumulation method, whereby the cost of the acquisition, including certain transaction costs, is allocated to the assets (or group of assets) acquired on the basis of their relative fair value(s) on the measurement date. No goodwill is recognized in an asset acquisition. Intangible assets acquired in an asset acquisition for use in R&D activities which have no alternative future use are expensed as IPR&D on the acquisition date. Amounts paid to acquire such assets are classified as operating cash outflows on the consolidated statements of cash flows. Future costs to develop these assets are expensed as R&D when incurred.
 Advertising
 Costs associated with advertising are expensed as incurred and are included in selling, general, and administrative on the consolidated statements of income. Advertising expenses were $ 191.0 million for 2024, $ 159.9 million for 2023, and $ 149.7 million for 2022.
 Stock-Based Compensation
 We grant stock options to purchase our common stock to eligible employees and directors and also grant certain employees restricted stock units (RSUs) and performance-based restricted stock units (PRSUs). Additionally, we allow employees to participate in an employee stock purchase plan (ESPP).

 We estimate the fair value of stock options and shares to be issued under the ESPP using the Black-Scholes option-pricing model on the date of grant. RSUs are valued based on the closing price of our common stock on the date of grant. The fair value of equity instruments expected to vest is recognized and amortized on a straight-line basis over the requisite service period of the award, which is generally three to four years; however, certain provisions in our equity compensation plans provide for shorter vesting periods under certain circumstances. The fair value of shares to be issued under the ESPP is recognized and amortized on a straight-line basis over the purchase period, which is generally six months. PRSUs vest upon the achievement of certain predefined company-specific performance-based criteria. Expense related to PRSUs is generally recognized ratably over the expected performance period once the predefined performance-based criteria for vesting becomes probable.
 Income Taxes
 Our income tax provision is computed under the asset and liability method. Significant estimates are required in determining our income tax provision. Some of these estimates are based on interpretations of existing tax laws or regulations. We recognize deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements or tax returns. Under this method, deferred tax assets and liabilities are determined on the basis of the difference between the tax basis of assets and liabilities and their respective financial reporting amounts (temporary differences) at enacted tax rates in effect for the years in which the differences are expected to reverse. A valuation allowance is established for deferred tax assets for which it is more likely than not that some portion or all of the deferred tax assets, including net operating losses and tax credits, will not be realized. We periodically re-assess the need for a valuation allowance against our deferred tax assets based on various factors including our historical earnings experience by taxing jurisdiction, and forecasts of future operating results and utilization of net operating losses and tax credits prior to their expiration. Significant judgment is required in making this assessment and, to the extent that a reversal of any portion of our valuation allowance against our deferred tax assets is deemed appropriate, a tax benefit will be recognized against our income tax provision in the period of such reversal.
 We recognize tax benefits from uncertain tax positions only if it is more likely than not that the tax position will be sustained upon examination by the tax authorities based on the technical merits of the position. An adverse resolution of one or more of these uncertain tax positions in any period could have a material impact on the results of operations for that period.
 Earnings Per Share
 Basic earnings per share are computed using the weighted average number of common shares outstanding during the period. Diluted earnings per share are computed using the treasury stock and if-converted methods and reflect the weighted average number of common and potentially dilutive shares outstanding during the period, excluding those which effect would be anti-dilutive. PRSUs for which the performance condition has not been achieved are excluded from the calculation of diluted earnings per share.
 Recently Adopted Accounting Pronouncements
 In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires public entities to disclose information about their reportable segments' significant expenses and other segment items on an interim and annual basis. Public entities with a single reportable segment are required to apply the disclosure requirements in ASU 2023-07, as well as all existing segment disclosures and reconciliation requirements in ASC 280 on an interim and annual basis. ASU 2023-07 is effective for annual reporting periods beginning after December 15, 2023, and for interim reporting periods beginning January 1, 2025. We adopted ASU 2023-07 for our annual reporting period beginning on January 1, 2024. The adoption of ASU 2023-07 had no significant impact on our financial statement disclosures.
 Recently Issued Accounting Pronouncements Not Yet Adopted
 In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires public entities, on an annual basis, to provide disclosure of specific categories in the rate reconciliation, as well as disclosure of income taxes paid disaggregated by jurisdiction. ASU 2023-09 is effective for annual reporting periods beginning after December 15, 2024, with early adoption permitted. We are currently evaluating the impact that adoption of ASU 2023-09 will have on our financial statement disclosures.

 In November 2024, the FASB issued ASU 2024-03, Income Statement–Reporting Comprehensive Income–Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires public entities to disclose specified information about certain costs and expenses on an interim and annual basis. ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027, with early adoption permitted. We are currently evaluating the impact that adoption of ASU 2024-03 will have on our financial statement disclosures.

 2. Collaboration and License Agreements
 Nxera Pharma UK Limited, or Nxera.
 In 2021, we entered into a collaboration and license agreement with Nxera (formerly Sosei Heptares) to develop and commercialize certain compounds containing sub-type selective muscarinic M1, M4, or dual M1/M4 receptor agonists, which we have the exclusive rights to develop, manufacture and commercialize worldwide, excluding in Japan, where Nxera retains the rights to develop, manufacture, and commercialize all compounds comprised of M1 receptor agonists, subject to certain exceptions. With respect to such rights retained by Nxera, we retain the rights to opt in to profit sharing arrangements, pursuant to which we and Nxera will equally share in the operating profits and losses for such compounds in Japan. Subject to specified conditions, we may elect to exercise such opt-in rights with respect to each such compound either before initiation of the first proof of concept Phase 2 clinical trial for such compound or following our receipt from Nxera of the top-line data from such clinical trial for such compound. We are responsible for all development, manufacturing, and commercialization costs of any collaboration product.
 In connection with the FDA's acceptance of our investigational new drug application for NBI-1117568 for the treatment of schizophrenia in 2022, we expensed a milestone payment of $ 30.0 million to Nxera as R&D in 2022.
 In connection with the successful completions of a long-term toxicity program for NBI-1117568 and a Phase 2 clinical study for NBI-1117568 in schizophrenia in 2024, we expensed milestone payments totaling $ 50.0 million to Nxera as R&D in 2024. We expect to advance NBI-1117568 into Phase 3 development in the first half of 2025, which would trigger a milestone of $ 15.0 million payable to Nxera upon initiation of the Phase 3 clinical study.
 Under the terms of the agreement, Nxera may be entitled to receive potential future payments of up to $ 2.5 billion upon the achievement of certain event-based milestones and would be entitled to receive royalties on the future net sales of any collaboration product.
 Unless earlier terminated, the agreement will continue on a licensed product-by-licensed product and country-by-country basis until the date on which the royalty term for such licensed product has expired in such country. On a licensed product-by-licensed product and country-by-country basis, royalty payments would commence on the first commercial sale of a licensed product and terminate on the later of (i) the expiration of the last patent covering such licensed product in such country, (ii) a number of years from the first commercial sale of such licensed product in such country and (iii) the expiration of regulatory exclusivity for such licensed product in such country.
 We may terminate the agreement in its entirety or with respect to one or more targets upon 180 days' written notice to Heptares during the research collaboration term and upon 90 days' written notice to Nxera following the expiration of the research collaboration term. Following the expiration of the research collaboration term, Nxera may terminate the agreement on a target-by-target basis in the event that we do not conduct any material development activities outside of Japan with respect to a certain compound or licensed product within the applicable target class for a continuous period of not less than 365 days and do not commence any such activities within 120 days of receiving written notice. Either party may terminate the agreement, subject to specified conditions, (i) in the event of material breach by the other party, subject to a cure period, (ii) if the other party challenges the validity or enforceability of certain intellectual property rights, subject to a cure period, or (iii) if the other party becomes insolvent or takes certain actions related to insolvency.

 Takeda Pharmaceutical Company Limited, or Takeda.
 In 2020, we entered into an exclusive license agreement with Takeda (the 2020 Takeda Agreement), pursuant to which we acquired the exclusive rights to develop and commercialize certain early to mid-stage psychiatry compounds, including luvadaxistat, NBI-1070770, osavampator (formerly NBI-1065845), NBI-1065846, and three non-clinical stage compounds. Pursuant to the 2020 Takeda Agreement, osavampator was designated as a profit-share product, meaning we and Takeda would equally share in the operating profits and losses. Takeda also retained the right to opt-out of the profit-sharing arrangement, pursuant to which Takeda would be entitled to receive potential future payments upon the achievement of certain event-based milestones with respect to osavampator and receive royalties on the future net sales of osavampator (in lieu of equally sharing in the operating profits and losses).
 In 2024, we provided Takeda with written notice of termination of the license under the 2020 Takeda Agreement to develop and commercialize luvadaxistat and NBI-1065846. The termination is anticipated to be effective in April 2025. In January 2025, we and Takeda amended and restated the exclusive license agreement (the Restated Takeda Agreement) to, among other things, reflect the conversion from sharing operating profits and losses with respect to the development and commercialization of osavampator to a royalty-bearing license, the return of rights to osavampator in Japan to Takeda, and our previous termination of DAAO inhibitors under the 2020 Takeda Agreement, including luvadaxistat, and GPR139 agonists, including NBI-1065846.
 Under the Restated Takeda Agreement, we will retain exclusive rights to develop and commercialize osavampator for all indications in all territories worldwide except Japan, where Takeda will reacquire exclusive development and commercialization rights. In addition, each party is responsible for development costs for osavampator in its respective territory, and each party is eligible to receive royalty payments based on the other party's net sales of osavampator in the other party's territory. Pursuant to the Restated Takeda Agreement and upon the successful development and commercialization of osavampator, we expect tiered based royalties payable to Takeda to be in the mid-to-upper teens in the U.S. and low double-digits outside of the U.S. on a blended basis as a percentage of net sales. Additionally, we are entitled to receive royalties from Takeda on the future net sales of osavampator in Japan.
 In connection with the approval of our clinical trial application for NBI-1070770 for the treatment of major depressive disorder in 2022, we expensed a milestone payment of $ 5.0 million to Takeda as R&D in 2022.
 In connection with the initiation of a Phase 2 clinical study for NBI-1070770 in major depressive disorder in 2024, we expensed a milestone payment of $ 7.5 million to Takeda as R&D in 2024.
 Takeda may be entitled to receive potential future payments upon the achievement of certain event-based milestones. As of December 31, 2024, the aggregate amount of these potential future payments was up to $ 1.9 billion, excluding the effects of the Restated Takeda Agreement and any pending terminations. Takeda is also entitled to receive royalties on the future net sales of any royalty-bearing product. In January 2025, we advanced osavampator into Phase 3 development to evaluate the efficacy and safety of osavampator in adults with major depressive disorder. The initiation of the Phase 3 study, as defined, will trigger a $ 35.0 million milestone payable to Takeda. No expense was recognized in connection with this milestone in 2024.
 Unless earlier terminated, the Restated Takeda Agreement will continue on a licensed product-by-licensed product and country-by-country basis until the date on which, (i) for any royalty-bearing product, the royalty term has expired in such country; and (ii) for any profit-share product, for so long as we continue to develop, manufacture, or commercialize such licensed product. On a licensed product-by-licensed product and country-by-country basis, royalty payments would commence on the first commercial sale of a royalty-bearing product and terminate on the later of (i) the expiration of the last patent covering such royalty-bearing product in such country, (ii) a number of years from the first commercial sale of such royalty-bearing product in such country and (iii) the expiration of regulatory exclusivity for such royalty-bearing product in such country.

 We may terminate the Restated Takeda Agreement in its entirety or in one or more (but not all) of the United States, Japan, the European Union and the United Kingdom, or, collectively, the major markets, upon six months ' written notice to Takeda (i) with respect to all licensed products prior to the first commercial sale of the first licensed product for which first commercial sale occurs, or (ii) with respect to all licensed products in one or more given target classes, as defined in the Restated Takeda Agreement, prior to the first commercial sale of the first licensed product in such target class for which first commercial sale occurs. We may terminate the Restated Takeda Agreement in its entirety or in one or more (but not all) of the major markets upon 12 months' written notice to Takeda (i) with respect to all licensed products following the first commercial sale of the first licensed product for which first commercial sale occurs, or (ii) with respect to all licensed products in one or more given target classes following the first commercial sale of the first licensed product in such target class for which first commercial sale occurs. Takeda may terminate the Restated Takeda Agreement, subject to specified conditions, (i) if we challenge the validity or enforceability of certain Takeda intellectual property rights or (ii) on a target class-by-target class basis, in the event that we do not conduct any material development or commercialization activities with respect to any licensed product within such target class for a specified continuous period. Subject to a cure period, either party may terminate the Restated Takeda Agreement in the event of any material breach, solely with respect to the target class of a licensed product to which such material breach relates, or in its entirety in the event of any material breach that relates to all licensed products, or if either party challenges the validity or enforceability of certain intellectual property rights.
 Idorsia Pharmaceuticals Ltd., or Idorsia.
 In 2020, we entered into a collaboration and license agreement with Idorsia, pursuant to which we acquired the exclusive rights to develop and commercialize NBI-827104, a potent, selective, orally active and brain penetrating T-type calcium channel blocker in clinical development for the treatment of a rare pediatric epilepsy and other potential indications, including essential tremor. We are responsible for all manufacturing, development, and commercialization costs of any collaboration product. In the fourth quarter of 2024, we provided Idorsia with written notice of termination of the license agreement to develop and commercialize NBI-827104. The termination became effective in January 2025.
 Xenon Pharmaceuticals Inc., or Xenon.
 In 2019, we entered into a collaboration and license agreement with Xenon to identify, research and develop sodium channel inhibitors, including NBI-921352 and three preclinical candidates, which compounds we have the exclusive rights to develop and commercialize. We are responsible for all development and manufacturing costs of any collaboration product, subject to certain exceptions.
 In connection with the achievement of a development milestone in 2022, we paid Xenon $ 15.0 million, including a purchase of 0.3 million shares (at $ 31.855 per share) of Xenon common stock (the 2022 Xenon Shares). The 2022 Xenon Shares were recorded at a fair value of $ 7.7 million after considering Xenon's stock price on the measurement date. The remaining $ 7.3 million of the milestone payment was expensed as R&D in 2022.
 Under the terms of the agreement, Xenon may be entitled to receive potential future payments of up to $ 1.7 billion upon the achievement of certain event-based milestones and is entitled to receive royalties on the future net sales of any collaboration product. Xenon retains the right to elect to co-develop one product in a major indication, pursuant to which Xenon would receive a mid-single digit percentage increase in royalties earned on the future net sales of such product in the United States and we and Xenon would equally share in the development costs of such product in the applicable indication, except where such development costs relate solely to the regulatory approval of such product outside the United States.
 Unless earlier terminated, the agreement will continue on a licensed product-by-licensed product and country-by-country basis until the expiration of the royalty term for such product in such country. Upon the expiration of the royalty term for a particular licensed product and country, the license obtained by us with respect to such product and country will become fully paid, royalty free, perpetual and irrevocable. We may terminate the agreement upon 90 days' written notice to Xenon, provided that such unilateral termination will not be effective for certain products until we have used commercially reasonable efforts to complete certain specified clinical studies. Either party may terminate the agreement in the event of a material breach in whole or in part, subject to specified conditions.

 Voyager Therapeutics, Inc., or Voyager.
 2019 Voyager Agreement
 In 2019, we entered into a collaboration and license agreement with Voyager (the 2019 Voyager Agreement), pursuant to which we retain certain rights to develop and commercialize the Friedreich's ataxia (FA) program and two undisclosed programs. We are responsible for all development and commercialization costs of any collaboration product under the 2019 Voyager Agreement, subject to certain co-development and co-commercialization rights retained by Voyager.
 In connection with the 2019 Voyager Agreement, we purchased 4.2 million shares (at $ 11.9625 per share) of Voyager common stock (the 2019 Voyager Shares), which are subject to certain transfer, beneficial ownership, and voting restrictions for a period of up to three years from the effective date of the 2023 Voyager Agreement (defined below). The 2019 Voyager Shares were recorded at a fair value of $ 54.7 million after considering Voyager's stock price and certain transfer restrictions that were applicable to the shares on the measurement date.
 In connection with the selection of a development candidate under the FA program pursuant to our collaboration with Voyager, we expensed a milestone payment of $ 5.0 million to Voyager as R&D in 2024.
 Under the terms of the 2019 Voyager Agreement, Voyager may be entitled to receive potential future payments of up to $ 1.3 billion upon the achievement of certain event-based milestones and is entitled to receive royalties on the future net sales of any collaboration product, subject to certain co-development and co-commercialization rights retained by Voyager.
 Unless terminated earlier, the 2019 Voyager Agreement will continue in effect until the expiration of the last to expire royalty term with respect to any collaboration product under the agreement or the last expiration or termination of any exercised co-development and co-commercialization rights by Voyager as provided for in the 2019 Voyager Agreement. We may terminate the 2019 Voyager Agreement upon 180 days' written notice to Voyager prior to the first commercial sale of any collaboration product under the 2019 Voyager Agreement or upon one year after the date of notice if such notice is provided after the first commercial sale of any collaboration product under the 2019 Voyager Agreement.
 2023 Voyager Agreement
 In 2023, we entered into a collaboration and license agreement with Voyager which we amended in April 2024 (as amended, the 2023 Voyager Agreement), pursuant to which we acquired the global rights to the gene therapy products directed to the gene that encodes glucosylceramidase beta 1 (GBA1) for the treatment of Parkinson's disease and other diseases associated with GBA1 (the GBA1 Program), and three gene therapy programs directed to rare central nervous system (CNS) targets, each enabled by Voyager's next-generation TRACERTM capsids. With respect to collaboration products subject to the GBA1 Program, we are responsible for all development and commercialization costs of any such products, including in the U.S., where Voyager retains certain co-development and co-commercialization rights. Voyager may elect to exercise such rights, pursuant to which we and Voyager would equally share in the operating profits and losses of such products in the U.S. (in lieu of Voyager being entitled to receive potential future payments of certain event-based milestones upon their achievement in the U.S. and receive royalties on the future net sales of such products in the U.S.), following Voyager's receipt of the top-line data from a first clinical trial Parkinson's disease. However, if we and Voyager elect to focus on an indication other than Parkinson's disease prior to Voyager's receipt of top-line data from a first clinical trial for Parkinson's disease, then Voyager may elect to exercise such co-development and co-commercialization rights after the later of: (i) Voyager's receipt of top-line data from the first clinical trial of a product that is the subject of the GBA1 Program or (ii) the date we and Voyager decide not to pursue Parkinson's disease as an indication for development under the GBA1 Program. Irrespective of Voyager's election to exercise such rights, Voyager may be entitled to receive potential future payments upon the achievement of certain event-based milestones outside the U.S. and would be entitled to receive royalties on the future net sales of any such product outside the U.S. With respect to collaboration products subject to the three gene therapy programs directed to rare CNS targets, we are responsible for all development and commercialization costs for any such products.

 In connection with the 2023 Voyager Agreement, we paid Voyager $ 175.0 million upfront, including a purchase of 4.4 million shares (at $ 8.88 per share) of Voyager common stock (the 2023 Voyager Shares), which are subject to certain transfer, beneficial ownership, and voting restrictions for a period of up to three years from the effective date of the 2023 Voyager Agreement. We accounted for the transaction as an asset acquisition as the set of acquired assets did not constitute a business. In addition, as part of the collaboration, Jude Onyia, Ph. D., Chief Scientific Officer of Neurocrine Biosciences, was appointed to Voyager's board of directors. Dr. Onyia (or another individual designated by us) will be nominated for election to Voyager's board of directors annually for a maximum duration of 10 years from the effective date of the 2023 Voyager Agreement. As a result, our equity investment in Voyager became subject to the equity method of accounting, and Voyager became a related party, following our purchase of the 2023 Voyager Shares, after which, together with the 2019 Voyager Shares, we owned approximately 19.9 % of the voting stock of Voyager. We elected the fair value option to account for our equity investment in Voyager as we believe it creates greater transparency regarding the investment's fair value at future reporting dates. The 2023 Voyager Shares were recorded at a fair value of $ 31.3 million after considering Voyager's stock price on the measurement date. The remaining $ 143.9 million of the purchase price, which includes certain transaction-related costs, was expensed as in-process research and development in the first quarter of 2023 as the license had no foreseeable alternative future use.
 In connection with the selection of two development candidates under the GBA1 program pursuant to our collaboration with Voyager, we expensed milestone payments totaling $ 6.0 million to Voyager as R&D in 2024.
 Under the terms of the 2023 Voyager Agreement, Voyager may be entitled to receive potential future payments of up to $ 6.1 billion upon the achievement of certain event-based milestones and is entitled to receive royalties on the future net sales of any collaboration product, subject to certain co-development and co-commercialization rights retained by Voyager.
 Unless terminated earlier, the 2023 Voyager Agreement will continue in effect until the expiration of the last to expire royalty term with respect to any collaboration product under the 2023 Voyager Agreement or the last expiration or termination of any exercised co-development and co-commercialization rights by Voyager as provided for in the 2023 Voyager Agreement. We may terminate the 2023 Voyager Agreement upon 180 days' written notice to Voyager prior to the first commercial sale of any collaboration product under the 2023 Voyager Agreement or upon one year after the date of notice if such notice is provided after the first commercial sale of any collaboration product under the 2023 Voyager Agreement.
 Sanofi S.A., or Sanofi.
 In 2014, we entered into a license agreement with Sanofi, pursuant to which we acquired the global rights to develop and commercialize certain corticotropin-releasing factor type 1 receptor (CRF1) antagonists, including crinecerfont. We are responsible for all manufacturing, development, and commercialization costs of any licensed product.
 In connection with FDA approval of CRENESSITY capsules and oral solution as an adjunctive treatment of classic congenital adrenal hyperplasia (CAH) in December 2024, we paid a $ 5.0 million milestone to Sanofi in January 2025, which we accrued to other current liabilities and recorded within intangible assets, net on the consolidated balance sheet as of December 31, 2024.
 Under the terms of the agreement, Sanofi may be entitled to receive potential future payments of up to $ 10.0 million upon the achievement of certain event-based milestones and is entitled to receive royalties at tiered percentage rates ranging from 3.0 % to 5.0 % on our future net sales of CRENESSITY in the U.S. for the longer of 16 years or the life of the related patent rights.
 Mitsubishi Tanabe Pharma Corporation, or MTPC.
 In 2015, we out-licensed the rights to valbenazine in Japan and other select Asian markets to MTPC. In 2020, we entered into a commercial supply agreement with MTPC, pursuant to which we supply MTPC with valbenazine drug product for commercial use in such markets. MTPC is responsible for all development, manufacturing and commercialization costs of valbenazine in such markets.
 MTPC launched DYSVAL (valbenazine) in Japan for the treatment of tardive dyskinesia in June 2022 and subsequently in other select Asian markets, where it is marketed as REMLEAS (valbenazine). We receive royalties at tiered percentage rates on MTPC net sales of valbenazine.

 In connection with MTPC's first commercial sale of DYSVAL in Japan, we received a milestone payment of $ 20.0 million in 2022. ASC 606 provides a royalty exception for a sales-based or usage-based royalty promised in exchange for a license of intellectual property. Under the royalty exception, the milestone would be recognized as revenue only when the later of (1) the subsequent sale or usage occurs or (2) the performance obligation to which some or all of the sales-based or usage-based royalty has been allocated has been satisfied (or partially satisfied). As the milestone related to a license of intellectual property and was contingent upon MTPC's first commercial sale of DYSVAL in Japan, the milestone was recognized as revenue in 2022.
 Under the terms of our license agreement with MTPC, we may be entitled to receive potential future payments of up to $ 30.0 million upon the achievement of certain sales-based milestones and are entitled to receive royalties at tiered percentage rates on future MTPC net sales of valbenazine for the longer of 10 years or the life of the related patent rights. MTPC may terminate the agreement upon 180 days' written notice to us. In such event, all out-licensed product rights would revert to us.
 AbbVie Inc., or AbbVie.
 In 2010, we out-licensed the global rights to elagolix to AbbVie. AbbVie is responsible for all development and commercialization costs of elagolix.
 AbbVie launched ORILISSA (elagolix tablets) in the U.S. for the treatment of moderate to severe pain associated with endometriosis in August 2018 and ORIAHNN (elagolix, estradiol and norethindrone acetate capsules and elagolix capsules) in the U.S. for the treatment of heavy menstrual bleeding due to uterine fibroids in June 2020. We receive royalties at tiered percentage rates on AbbVie net sales of elagolix and recognized elagolix royalty revenue of $ 13.5 million for 2024, $ 16.7 million for 2023, and $ 21.2 million for 2022.
 Under the terms of our license agreement with AbbVie, we may be entitled to receive potential future payments of up to $ 366.0 million upon the achievement of certain event-based milestones and are entitled to receive royalties at tiered percentage rates on future AbbVie net sales of elagolix for the longer of 10 years or the life of the related patent rights. AbbVie may terminate the agreement upon 180 days' written notice to us. In such event, all out-licensed product rights would revert to us.

 3. Available-for-Sale Debt Securities
 The following table presents a summary of available-for-sale debt securities, aggregated by major security type and contractual maturity.

2024
2023

 Contractual
Maturity
 Amortized
Cost
 Unrealized Gain
 Unrealized Loss
 Fair
Value
 Amortized
Cost
 Unrealized Gain
 Unrealized Loss
 Fair
Value

 Commercial paper
 0 to 1 years
 $
 37.1
 $
 —
 $
 —
 $
 37.1
 $
 53.5
 $
 —
 $
 —
 $
 53.5

 Corporate debt securities
 0 to 1 years
 527.0
 0.6
 527.5
 382.1
 0.1
 ( 1.0)
 381.2

 Securities of government-sponsored entities
 0 to 1 years
 278.2
 0.3
 —
 278.5
 346.1
 0.2
 ( 0.5)
 345.8

 $
 842.3
 $
 0.9
 $
 $
 843.1
 $
 781.7
 $
 0.3
 $
 ( 1.5)
 $
 780.5

 Corporate debt securities
 1 to 3 years
 $
 584.4
 $
 2.0
 $
 ( 1.0)
 $
 585.4
 $
 483.5
 $
 2.9
 $
 ( 0.4)
 $
 486.0

 Securities of government-sponsored entities
 1 to 3 years
 154.4
 0.3
 154.1
 201.1
 0.5
 201.5

 $
 738.8
 $
 2.3
 $
 ( 1.6)
 $
 739.5
 $
 684.6
 $
 3.4
 $
 ( 0.5)
 $
 687.5

 Unrealized losses on available-for-sale debt securities were primarily due to changes in interest rates. These investments are of high credit quality, and we do not intend to sell these investments and it is not more likely than not that we will be required to sell these investments before recovery of their amortized cost basis. No allowance for credit losses was recognized as of December 31, 2024 or December 31, 2023.

 The following table presents available-for-sale debt securities that were in an unrealized loss position as of December 31, 2024, aggregated by major security type and length of time in a continuous loss position.

 Less Than 12 Months
 12 Months or Longer
 Total

 Fair
Value
Loss
 Fair
Value
Loss
 Fair
Value
Loss

 Corporate debt securities
 $
 334.9
 $
 ( 1.1)
 $
 —
 $
 —
 $
 334.9
 $
 ( 1.1)

 Securities of government-sponsored entities
 $
 123.8
 $
 $
 —
 $
 —
 $
 123.8
 $

 The following table presents available-for-sale debt securities that were in an unrealized loss position as of December 31, 2023, aggregated by major security type and length of time in a continuous loss position.

 Less Than 12 Months
 12 Months or Longer
 Total

 Fair
Value
Loss
 Fair
Value
Loss
 Fair
Value
Loss

 Corporate debt securities
 $
 265.1
 $
 ( 0.4)
 $
 183.8
 $
 ( 1.0)
 $
 448.9
 $
 ( 1.4)

 Securities of government-sponsored entities
 $
 214.6
 $
 $
 16.7
 $
 ( 0.4)
 $
 231.3
 $

 4. Fair Value Measurements
 The following table presents a summary of certain financial assets, which were measured at fair value on a recurring basis.

2024
2023

 Fair
Value
 Leveling
 Fair
Value
 Leveling

 Level 1
 Level 2
 Level 1
 Level 2

 Cash and cash equivalents
 $
 233.0
 $
 233.0
 $
 —
 $
 251.1
 $
 251.1
 $
 —

 Available-for-sale debt securities
 1,582.6
 —
 1,582.6
 1,468.0
 —
 1,468.0

 Equity investments
 124.8
 124.8
 —
 161.9
 161.9
 —

 $
 1,940.4
 $
 357.8
 $
 1,582.6
 $
 1,881.0
 $
 413.0
 $
 1,468.0

 5. Earnings Per Share
 Earnings per share were calculated as follows:

 (in millions, except per share data)
 2024
 2023
 2022

 Net income - basic and diluted
 $
 341.3
 $
 249.7
 $
 154.5

 Weighted-average common shares outstanding:

 Basic
 100.4
 97.7
 95.8

 Effect of dilutive securities
 3.3
 3.3
 3.1

 Diluted
 103.7
 101.0
 98.9

 Earnings per share:

 Basic
 $
 3.40
 $
 2.56
 $
 1.61

 Diluted
 $
 3.29
 $
 2.47
 $
 1.56

 Shares which have been excluded from diluted per share amounts because their effect would have been anti-dilutive were 2.4 million for 2024, 4.7 million for 2023, and 4.6 million for 2022.

 6. Stockholders' Equity
 Share Repurchases
 During 2024, we entered into an accelerated share repurchase (ASR) transaction with a third-party financial institution to repurchase an aggregate of $ 300.0 million of shares of the Company's common stock.
 The transaction was accounted for as a treasury stock transaction and a forward stock purchase contract, which was considered indexed to the Company's own stock and classified as an equity instrument.

 At inception, we paid the financial institution $ 300.0 million using cash on hand and took initial delivery of 2.0 million shares, which resulted in an immediate reduction of the outstanding shares used to calculate the weighted-average common shares for both basic and diluted earnings per share. The fair market value of the 2.0 million initial shares received was $ 240.5 million, with the par value of the initial shares received recorded as a reduction to common stock, the excess of the fair market value over the par value of the initial shares received recorded as a reduction to retained earnings to the extent available, and the remainder recorded as a reduction to additional paid-in capital. The remaining $ 59.5 million of the repurchase price was recorded to additional paid-in capital.
 The ASR transaction terminated in February 2025, at which time we became contractually entitled to receive an additional 0.3 million shares upon settlement.

 7. Stock-Based Compensation
 2020 Equity Incentive Plan
 In May 2022, 2023, and 2024, our stockholders approved amendments of the 2020 Equity Incentive Plan (as so amended, the Amended 2020 Plan). The Amended 2020 Plan provides for the grant of stock options, stock appreciation rights, restricted stock awards, restricted stock unit awards, performance awards, and other awards. As of December 31, 2024, 10.6 million shares of common stock remain available for future grant under the Amended 2020 Plan.
 Under the terms of the Amended 2020 Plan, the number of shares of common stock available for issuance will be: (i) reduced by (a) one share for each share issued pursuant to an appreciation award (as defined in the Amended 2020 Plan) granted under the Amended 2020 Plan and (b) 2.13 shares for each share issued pursuant to a full value award (as defined in the Amended 2020 Plan) granted under the Amended 2020 Plan on or after May 18, 2022; and (ii) increased by (a) one share for each share subject to an appreciation award that becomes available again for issuance under the terms of the Amended 2020 Plan and (b) 2.13 shares for each share subject to a full value award that becomes available again for issuance under the terms of the Amended 2020 Plan on or after May 18, 2022.
 2011 Equity Incentive Plan
 In May 2011, we adopted the 2011 Equity Incentive Plan (the 2011 Plan). The 2011 Plan was a stockholder-approved plan pursuant to which outstanding awards have been made, but from which no further awards can or will be made.
 2018 Employee Stock Purchase Plan
 In May 2021, our stockholders approved an amendment and restatement of the 2018 Employee Stock Purchase Plan (as so amended and restated, the Amended 2018 ESPP). As of December 31, 2024, 0.3 million shares of common stock remain available for future issuance under the Amended 2018 ESPP.
 Stock-Based Compensation Expense
 The effect of stock-based compensation expense on the consolidated statements of income and comprehensive income by line-item follows:

 2024
 2023
 2022

 Selling, general, and administrative

 $
 126.7
 $
 126.3
 $
 115.4

 Research and development

 68.8
 68.0
 57.7

 Total stock-based compensation expense
 $
 195.5
 $
 194.3
 $
 173.1

 Stock-based compensation expense by award-type follows:

 2024
 2023
 2022

 Stock options
 $
 80.7
 $
 91.6
 $
 62.6

 RSUs
 97.7
 93.4
 86.4

 PRSUs
 11.5
 4.6
 20.1

 ESPP
 5.6
 4.7
 4.0

 Total stock-based compensation expense
 $
 195.5
 $
 194.3
 $
 173.1

 As of December 31, 2024, unrecognized stock-based compensation expense by award-type and the weighted-average period over which such expense is expected to be recognized, as applicable, was as follows:

 (dollars in millions)
 Unrecognized Expense
 Weighted-Average Recognition Period

 Stock options
 $
 92.7
 2.2 years

 RSUs
 $
 187.5
 2.3 years

 PRSUs
 $
 30.7

 Stock Options
 Typically, stock options have a 10-year term and vest over a three to four-year period. The exercise price of stock options granted is equal to the closing price of our common stock on the date of grant. We estimate the fair value of stock options using the Black-Scholes option-pricing model on the date of grant. The Black-Scholes option-pricing model incorporates various and highly sensitive assumptions including expected volatility, term and interest rates. The weighted-average grant-date fair values of stock options granted were $ 55.74 for 2024, $ 45.19 for 2023, and $ 32.05 for 2022.
 The fair value of each stock option granted was estimated on the date of grant using the Black-Scholes option-pricing valuation model with the following weighted-average assumptions:

 2024
 2023
 2022

 Risk-free interest rate
 4.3
 %
 3.9
 %
 1.8
 %

 Expected volatility of common stock
 37.2
 %
 40.8
 %
 42.6
 %

 Dividend yield
 0.0
 %
 0.0
 %
 0.0
 %

 Expected option term
 5.5 years
 5.5 years
 5.0 years

 The weighted-average valuation assumptions were determined as follows:
 • The expected volatility of common stock is estimated based on the historical volatility of our common stock over the most recent period commensurate with the estimated expected term of our stock options.
 • The expected option term is estimated based on historical experience as well as the status of the employee. For example, directors and officers have a longer expected option term than all other employees.
 • The risk-free interest rate for periods within the contractual life of a stock option is based upon observed interest rates appropriate for the expected term of our employee stock options.
 • We have not historically declared or paid dividends and do not intend to do so in the foreseeable future.
 The following table presents summary of activity related to stock options.

 (in millions, except weighted average data)
 Number of
Stock Options
 Weighted
Average
Exercise Price
 Weighted-Average Remaining Contractual Term
 Aggregate Intrinsic Value

 Outstanding at December 31, 2023

 10.0
 $
 84.46

 Granted
 1.5
 $
 133.93

 Exercised
 ( 1.7)
 $
 65.22

 Canceled
 $
 108.84

 Outstanding at December 31, 2024

 9.6
 $
 95.48
 6.2 years
 $
 394.0

 Exercisable at December 31, 2024

 6.8
 $
 88.40
 5.3 years
 $
 327.7

 The total intrinsic value of stock options exercised was $ 122.5 million for 2024, $ 39.9 million for 2023, and $ 39.7 million for 2022. Cash received from stock option exercises was $ 110.8 million for 2024, $ 55.5 million for 2023, and $ 37.0 million for 2022.
 Restricted Stock Units
 RSUs typically vest over a four-year period and may be subject to a deferred delivery arrangement at the election of eligible employees. The fair value of RSUs is based on the closing sale price of our common stock on the date of issuance. The total fair value of RSUs that vested was $ 116.7 million for 2024, $ 101.0 million for 2023, and $ 72.4 million for 2022.

 The following table presents a summary of activity related to RSUs.

 (in millions, except weighted average data)
 Number of
RSUs
 Weighted-Average Grant Date
Fair Value
 Weighted-Average Remaining Contractual Term
 Aggregate Intrinsic Value

 Unvested at December 31, 2023

 2.4
 $
 97.32

 Granted
 1.1
 $
 132.74

 Released
 ( 0.9)
 $
 97.91

 Canceled
 $
 108.56

 Unvested at December 31, 2024

 2.4
 $
 111.90
 1.2 years
 $
 329.2

 Performance-Based Restricted Stock Units
 PRSUs vest based on the achievement of certain predefined Company-specific performance criteria. Any unvested PRSUs will expire if it is determined the related performance criteria has not been met during the applicable three to four-year performance period. The fair value of PRSUs is estimated based on the closing sale price of our common stock on the date of grant. The fair value of PRSUs that vested was $ 34.4 million during 2023. No PRSUs vested during 2024 or 2022.
 The following table presents a summary of activity related to PRSUs.

 (in millions, except weighted average data)
 Number of
PRSUs
 Weighted-Average Grant Date
Fair Value
 Weighted-Average Remaining Contractual Term
 Aggregate Intrinsic Value

 Unvested at December 31, 2023

 0.3
 $
 89.23

 Granted
 0.1
 $
 138.90

 Unvested at December 31, 2024

 0.4
 $
 105.11
 1.4 years
 $
 49.9

 Employee Stock Purchase Plan
 Under the Amended 2018 ESPP, eligible employees may purchase shares of our common stock at a discount semi-annually based on a percentage of their annual compensation. The discounted purchase price is equal to the lower of 85 % of (i) the market value per share of the common stock on the first day of the offering period or (ii) the market value per share of common stock on the purchase date.

 8. Income Taxes
 The following table presents income from continuing operations before provision for income taxes for domestic and international operations.

 2024
 2023
 2022

 U.S.

 $
 597.5
 $
 409.2
 $
 218.0

 Foreign
 ( 111.5)
 ( 77.1)
 ( 4.1)

 Income before provision for income taxes
 $
 486.0
 $
 332.1
 $
 213.9

 The following table presents the components of income tax expense for continuing operations.

 2024
 2023
 2022

 Current:

 Federal
 $
 215.2
 $
 115.0
 $
 17.1

 State
 52.5
 28.1
 20.3

 Current income taxes
 267.7
 143.1
 37.4

 Deferred:

 Federal
 ( 104.9)
 ( 45.2)
 27.5

 State
 ( 18.1)
 ( 15.5)
 ( 5.5)

 Deferred income taxes

 ( 123.0)
 ( 60.7)
 22.0

 $
 144.7
 $
 82.4
 $
 59.4

 The provision for income taxes on earnings subject to income taxes differs from the statutory federal rate due to the following:

 2024
 2023
 2022

 Federal income taxes at 21 %

 $
 102.1
 $
 69.7
 $
 44.9

 State income tax, net of federal benefit
 34.6
 17.5
 11.8

 Branded prescription drug fee
 7.5
 8.7
 6.5

 Loss on extinguishment of convertible senior notes
 29.1
 —
 12.0

 ( 20.4)
 ( 3.9)
 ( 2.5)

 Officer compensation
 3.3
 9.6
 9.2

 Foreign rate differential

 7.2
 3.4

 Change in tax rate
 ( 5.5)
 ( 1.1)

 Research credits
 ( 49.2)
 ( 42.2)
 ( 29.9)

 Change in valuation allowance
 23.9
 22.0
 7.4

 Other
 7.2
 3.1
 1.3

 $
 144.7
 $
 82.4
 $
 59.4

 The following table presents the significant components of our deferred tax assets.

 2024
 2023

 Deferred tax assets:

 Net operating losses
 $
 50.5
 $
 36.5

 Research and development credits
 62.8
 55.3

 Capitalized research and development
 255.7
 178.7

 61.4
 52.7

 Operating lease assets
 122.7
 72.0

 Intangible assets
 121.4
 110.0

 Other
 51.7
 37.2

 Total deferred tax assets
 726.2
 542.4

 Deferred tax liabilities:

 Operating lease liabilities
 ( 112.8)
 ( 66.3)

 Other
 ( 15.5)
 ( 24.6)

 Total deferred tax liabilities
 ( 128.3)
 ( 90.9)

 Net of deferred tax assets and liabilities
 597.9
 451.5

 Valuation allowance
 ( 112.2)
 ( 88.9)

 Net deferred tax assets
 $
 485.7
 $
 362.6

 As of December 31, 2024 and 2023, we recorded a valuation allowance of $ 112.2 million and $ 88.9 million, respectively, against our gross deferred tax asset balance.
 As of each reporting date, management considers new evidence, both positive and negative, that could affect its assessment of the future realizability of our deferred tax assets. As of December 31, 2024, management determined there was sufficient positive evidence to conclude that it is more likely than not deferred tax assets of $ 485.7 million are realizable. The recorded valuation allowance of $ 112.2 million consisted primarily of state and foreign net operating loss carryforwards and state credit carryforwards for which management cannot conclude it is more likely than not to be realized.
 As of December 31, 2024, we had state and foreign income tax net operating loss carryforwards of $ 279.5 million and $ 237.5 million, respectively. We had no federal income tax operating loss carryforwards as of December 31, 2024. California net operating losses will begin to expire in 2031 unless previously utilized and the net operating losses related to other states will begin to expire in 2037. Swiss net operating losses will begin to expire in 2030 unless previously utilized. UK net operating losses will carry forward indefinitely.

 As of December 31, 2024, we had state R&D tax credit carryforwards of $ 97.1 million. California R&D tax credits carry forward indefinitely, while R&D tax credits related to other states will begin to expire in 2034 unless previously utilized.
 Additionally, the future utilization of our net operating loss and R&D tax credit carryforwards to offset future taxable income may be subject to an annual limitation, pursuant to Internal Revenue Code Sections 382 and 383, as a result of ownership changes that could occur in the future. No ownership changes have occurred through December 31, 2024.
 The impact of an uncertain income tax position on the income tax return must be recognized at the largest amount that is more-likely-than-not to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained.
 We recognize interest and penalties related to income tax matters in income tax expense. We had accruals for interest related to income tax matters of $ 10.9 million as of December 31, 2024 and $ 3.1 million as of December 31, 2023. We had accruals for penalties related to income tax matters of $ 2.2 million as of December 31, 2024 and 2023.
 We are subject to taxation in the U.S. and various state and foreign jurisdictions. Our tax years for 2002 for federal, 2000 for California, 2015 for other significant state jurisdictions, and 2019 and forward for foreign jurisdictions are subject to examination by tax authorities due to the carryforward of unutilized net operating losses and R&D tax credits.
 The following table presents a summary of activity related to unrecognized tax benefits.

 2024
 2023
 2022

 Balance at January 1
 $
 121.0
 $
 84.5
 $
 64.6

 Increase related to prior year tax positions
 4.0
 3.4
 4.7

 Increase related to current year tax positions
 54.8
 36.7
 15.2

 Decrease related to prior year tax positions

 —
 ( 3.6)
 —

 Balance at December 31
 $
 179.8
 $
 121.0
 $
 84.5

 As of December 31, 2024, we had $ 141.9 million of unrecognized tax benefits that, if recognized and realized, would affect the effective tax rate, subject to changes in the valuation allowance. We do not expect a significant change in our unrecognized tax benefits in the next 12 months.

 9. Leases
 Our operating leases have terms that expire beginning 2025 through 2036 and consist of office space and research and development laboratories, including our corporate headquarters. Certain of these lease agreements contain clauses for renewal at our option. As we were not reasonably certain to exercise any of these renewal options at commencement of the associated leases, no such options were recognized as part of our ROU assets or operating lease liabilities.
 The following table presents supplemental operating lease information for operating leases that have commenced.

 (in millions, except weighted average data)
 2024
 2023
 2022

 Operating lease cost
 $
 43.6
 $
 17.1
 $
 16.3

 Sublease income
 ( 2.0)
 ( 0.7)
 —

 Net operating lease cost
 $
 41.6
 $
 16.4
 $
 16.3

 Cash paid for amounts included in the measurement of operating lease liabilities
 $
 33.1
 $
 17.9
 $
 16.9

 2024
2023

 Weighted average remaining lease term

 10.8 years
 10.8 years

 Weighted average discount rate
 4.9
 %
 5.1
 %

 Restricted cash related to letters of credit issued in lieu of cash security deposits
 $
 7.8
 $
 7.8

 The following table presents approximate future non-cancelable minimum lease payments under operating leases and sublease income as of December 31, 2024.

 Operating
 Leases (1)

 Sublease
Income

 Year ending December 31, 2025

 $
 41.8
 $

 Year ending December 31, 2026

 58.2

 Year ending December 31, 2027

 59.1

 Year ending December 31, 2028

 60.6

 Year ending December 31, 2029

 60.7

 Thereafter
 373.9
 ( 5.3)

 Total operating lease payments (sublease income)

 654.3
 $
 ( 22.8)

 Less accreted interest
 158.6

 Total operating lease liabilities
 495.7

 Less current operating lease liabilities included in other current liabilities
 40.6

 Noncurrent operating lease liabilities
 $
 455.1

 New Campus Facility
 On February 8, 2022, we entered into a lease agreement for a four-building campus facility to be constructed in San Diego, California, including a six-year option for the construction of a fifth building. This campus facility, comprised of office space and research and development laboratories, now serves as our new corporate headquarters.
 The construction of the new campus facility was phased. In connection with the completion of the first phase of construction relating to office space, we recognized ROU assets of $ 199.0 million and operating lease liabilities of $ 189.8 million in December 2023. In connection with the completion of the second phase of construction relating to laboratory space, we recognized ROU assets of $ 258.9 million and operating lease liabilities of $ 211.7 million in October 2024.
 As we continue to occupy our new campus facility, certain of our existing leased properties will be marketed for sublease when we determine there is excess leased capacity. Certain of these subleases contain both lease and non-lease components. Sublease income is recognized as an offset to operating expense on a straight-line basis over the lease term. Income related to non-lease components is recognized in operating expenses as a reduction to costs we incur in relation to the primary lease.
 Impairment of ROU Assets
 During 2024, we reassessed the asset groupings for corporate ROU assets that are actively being marketed for sublease in connection with leased office space that has been vacated as we continue to occupy our new campus facility. For asset groups where impairment was triggered, we used discounted cash flow models (an income approach) with Level 3 inputs to estimate the fair values of the asset groups and recognized corresponding impairment charges totaling $ 14.0 million in 2024, of which $ 11.3 million and $ 2.7 million, respectively, was related to the ROU assets and tenant improvements associated with the underlying leased properties. The significant assumptions used in the discounted cash flows models included projected sublease income over the remaining lease term, expected downtime prior to the commencement of executed or future subleases, and discount rates that reflected a market participant's assumptions in valuing the asset groups.

 10. Convertible Senior Notes
 On May 2, 2017, we completed a private placement of $ 517.5 million in aggregate principal amount of 2.25 % fixed-rate convertible senior notes due May 15, 2024 (the 2024 Notes) and entered into the 2017 Indenture with respect to the 2024 Notes. Interest on the 2024 Notes was due semi-annually on May 15 and November 15 of each year.
 In 2020, we repurchased $ 136.2 million in aggregate principal amount of the 2024 Notes for an aggregate repurchase price of $ 186.9 million in cash. In 2022, we repurchased $ 210.8 million in aggregate principal amount of the 2024 Notes for an aggregate repurchase price of $ 279.0 million in cash, which resulted in the recognition of a $ 70.0 million loss on extinguishment.

 On or after January 15, 2024, holders of the 2024 Notes had the ability to convert the 2024 Notes at any time until the close of business on the scheduled trading day immediately preceding May 15, 2024. In January 2024, we provided notice to the holders of the 2024 Notes electing to settle all conversions of the 2024 Notes which occur on or after January 15, 2024 in cash. Consequently, the embedded conversion option of the 2024 Notes (the conversion feature) required bifurcation and separate accounting from the 2024 Notes as it no longer qualified for the equity scope exception under ASC 815, Derivatives and Hedging. Upon bifurcation of the conversion feature, we recorded a derivative liability at a fair value of $ 126.6 million (Level 3) and a corresponding debt discount that was accreted over the remaining term of the 2024 Notes using the straight-line method. Subsequent changes in the fair value of the derivative liability and accretion of the associated debt discount were recorded in other income (expense), net on the consolidated statements of income.
 During 2024, holders of the 2024 Notes converted $ 169.8 million in aggregate principal amount of the 2024 Notes for $ 308.2 million in cash, reflecting a conversion premium of $ 138.4 million calculated based on the per share volume-weighted average price (VWAP) for each of the 30 consecutive trading days during the observation period (as more fully described in the 2017 Indenture). The 2024 Notes were settled in full upon maturity on May 15, 2024.
 The following table presents a summary of charges recognized in connection with the bifurcation of the conversion feature of the 2024 Notes and conversions of the 2024 Notes by holders during 2024.

 Amount

 Accretion of debt discount associated with derivative liability
 $
 126.6

 Change in fair value of derivative liability
 9.6

 Loss on extinguishment of convertible senior notes
 2.2

 $
 138.4

 11. Goodwill and Intangible Assets
 The following table presents the changes in the carrying amount of goodwill. Goodwill is included in other noncurrent assets in the consolidated balance sheets.

 Amount

 Balance as of December 31, 2022
 $
 5.4

 Foreign currency translation adjustments
 0.4

 Balance as of December 31, 2023
 5.8

 Foreign currency translation adjustments

 Balance as of December 31, 2024
 $
 5.7

 The following table presents information relating to our recognized intangible assets.

2024
2023

 (dollars in millions)
 Gross Carrying Amount
 Accumulated Amortization
 Net
Carrying Amount
 Gross Carrying Amount
 Accumulated Amortization
 Net
Carrying Amount

 Developed product rights (1)

 $
 40.5
 $
 7.7
 $
 32.8
 $
 35.9
 $
 4.0
 $
 31.9

 Acquired IPR&D
 $
 3.7
 $
 —
 3.7
 $
 3.6
 $
 —
 3.6

 Total intangible assets, net
 $
 36.5
 $
 35.5

 (1) Developed product rights have a useful life of 10 to 16 years.
 (2) Acquired IPR&D is considered indefinite lived until the completion or abandonment of the associated research and development efforts.

 The following table presents approximate future annual amortization expense for our finite-lived intangible assets as of December 31, 2024.

 Amount

 Year ending December 31, 2025

 $
 3.9

 Year ending December 31, 2026

 $
 3.9

 Year ending December 31, 2027

 $
 3.9

 Year ending December 31, 2028

 $
 3.9

 Year ending December 31, 2029

 $
 3.9

 Thereafter
 $
 13.3

 12. Other Balance Sheet Details
 Inventory consisted of the following:

 2024
 2023

 Raw materials
 $
 33.7
 $
 21.5

 Work in process
 10.9
 9.7

 Finished goods
 12.8
 12.3

 57.4
 43.5

 Less inventory reserves

 —
 ( 5.2)

 Total inventory
 $
 57.4
 $
 38.3

 Property and equipment, net, consisted of the following:

 2024
 2023

 Tenant improvements
 $
 35.9
 $
 38.1

 Scientific equipment
 95.7
 79.6

 Computer equipment
 38.9
 25.2

 Furniture and fixtures
 18.6
 10.9

 189.1
 153.8

 Less accumulated depreciation
 ( 106.5)
 ( 83.0)

 Total property and equipment, net
 $
 82.6
 $
 70.8

 Accounts payable and accrued liabilities consisted of the following:

 2024
 2023

 Sales rebates and reserves
 $
 144.2
 $
 139.3

 Accrued employee related costs
 107.5
 86.2

 Accrued development costs
 50.8
 44.3

 Current branded prescription drug fee
 49.2
 45.7

 Accounts payable and other accrued liabilities
 110.0
 133.3

 Total accounts payable and accrued liabilities
 $
 461.6
 $
 448.8

 Other noncurrent liabilities consisted of the following:

 2024
 2023

 Noncurrent income taxes payable

 $
 160.7
 $
 96.0

 Other noncurrent liabilities
 5.5
 10.3

 Total other noncurrent liabilities
 $
 166.2
 $
 106.3

 The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown on the consolidated statements of cash flows.

 2024
 2023

 Cash and cash equivalents
 $
 233.0
 $
 251.1

 Restricted cash included in other noncurrent assets

 8.0
 8.0

 Total cash, cash equivalents, and restricted cash
 $
 241.0
 $
 259.1

 13. Retirement Plan
 We have a 401(k) defined contribution savings plan for the benefit of all qualifying employees and permits voluntary contributions by employees up to 60 % of base salary limited by the IRS-imposed maximum. Employer contributions were $ 15.5 million for 2024, $ 12.5 million for 2023, and $ 10.3 million for 2022.

 14. Segment Reporting and Disaggregation of Relevant Expense Captions
 Neurocrine Biosciences operates as a single global business segment dedicated to the research and development, commercialization, and sale of pharmaceuticals primarily in the U.S. for the treatment of neurological, neuroendocrine, and neuropsychiatric disorders. Net product sales from external customers attributed to foreign countries, intra-entity sales, and long-lived assets located outside the U.S. were not significant for 2024, 2023, or 2022. The accounting policies of the segment are the same as those described in the summary of significant accounting policies.
 The determination of a single business segment is consistent with the consolidated financial information regularly reviewed by the Chief Executive Officer as chief operating decision maker (CODM) in assessing segment performance and deciding how to allocate resources on a consolidated basis.
 The CODM assesses performance for the segment and decides how to allocate resources based on net income that also is reported on the consolidated statements of income as consolidated net income. The CODM uses net income to monitor budget and forecast versus actual results in assessing segment performance and to evaluate income generated from segment assets in deciding how to allocate resources. The measure of segment assets is reported on the consolidated balance sheets as total consolidated assets.

 The following table presents information about reported segment revenues, segment profit, and significant segment expenses.

 2024
 2023
 2022

 Revenues

 $
 2,355.3
 $
 1,887.1
 $
 1,488.7

 Less:

 Cost of revenues
 34.0
 39.7
 23.2

 Research and development:

 External research and development
 343.5
 310.0
 213.5

 Payroll and benefits
 236.7
 206.7
 163.8

 Milestones
 71.7
 0.8
 42.7

 Other research and development (1)

 79.2
 47.5
 43.8

 Total research and development
 731.1
 565.0
 463.8

 Acquired in-process research and development
 12.5
 143.9
 —

 Selling, general, and administrative
 1,007.2
 887.6
 752.7

 Unrealized loss (gain) on equity investments
 37.1
 ( 28.4)
 ( 30.8)

 138.4
 —
 70.0

 Interest income and other, net
 ( 91.0)
 ( 52.8)
 ( 4.1)

 144.7
 82.4
 59.4

 $
 341.3
 $
 249.7
 $
 154.5

 (1) Other research and development consists of indirect costs incurred for the benefit of multiple research and development programs, including depreciation, information technology, and other facility-based expenses, such as rent expense.

 15. Legal Proceedings
 In January 2025, we filed suit in the United States District Court for the District of Delaware against Spruce Biosciences, Inc. (Spruce), seeking to invalidate one of Spruce's patents. In addition, we have initiated (1) administrative proceedings against other Spruce patents in the U.S. Patent Office, and (2) both judicial and administrative proceedings against Spruce patents in other jurisdictions.
 From time to time, we may also become subject to other legal proceedings or claims arising in the ordinary course of our business. We currently believe that none of the claims or actions pending against us is likely to have, individually or in the aggregate, a material adverse effect on our business, financial condition or results of operations. Given the unpredictability inherent in litigation, however, we cannot predict the outcome of these matters.

 Item 9. Changes and Disagreements with Accountants on Accounting and Financial Disclosure
 Not applicable.

 Item 9A. Controls and Procedures
 We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our Exchange Act reports is recorded, processed, summarized and reported within the timelines specified in the SEC's rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, can only provide reasonable assurance of achieving the desired control objectives, and in reaching a reasonable level of assurance, management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.
 As required by SEC Rule 13a-15(b), we carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures as of the end of the year covered by this report. Based on the foregoing, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective at the reasonable assurance level.

 Management's Report on Internal Control Over Financial Reporting
 Internal control over financial reporting refers to the process designed by, or under the supervision of, our Chief Executive Officer and Chief Financial Officer, and effected by our board of directors, management and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles, and includes those policies and procedures that:
 (1)Pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of our assets;
 (2)Provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that our receipts and expenditures are being made only in accordance with authorization of our management and directors; and
 (3)Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on the financial statements.
 Internal control over financial reporting cannot provide absolute assurance of achieving financial reporting objectives because of its inherent limitations. Internal control over financial reporting is a process that involves human diligence and compliance and is subject to lapses in judgment and breakdowns resulting from human failures. Internal control over financial reporting also can be circumvented by collusion or improper management override. Because of such limitations, there is a risk that material misstatements may not be prevented or detected on a timely basis by internal control over financial reporting. However, these inherent limitations are known features of the financial reporting process. Therefore, it is possible to design into the process safeguards to reduce, though not eliminate, this risk. Management is responsible for establishing and maintaining adequate internal control over financial reporting for the company.
 Management has used the framework set forth in the report entitled Internal Control-Integrated Framework (2013 framework) published by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), known as COSO, to evaluate the effectiveness of our internal control over financial reporting. Based on this assessment, management has concluded that our internal control over financial reporting was effective as of December 31, 2024. Ernst & Young, LLP, our independent registered public accounting firm, has issued an attestation report on our internal control over financial reporting as of December 31, 2024, which is included herein.
 There has been no change in our internal control over financial reporting during our most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

 Report of Independent Registered Public Accounting Firm
 To the Stockholders and the Board of Directors of Neurocrine Biosciences, Inc.
 Opinion on Internal Control Over Financial Reporting
 We have audited Neurocrine Biosciences, Inc.'s internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Neurocrine Biosciences, Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2024, based on the COSO criteria.
 We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2024 and 2023, the related consolidated statements of income and comprehensive income, stockholders' equity and cash flows for each of the three years in the period ended December 31, 2024, and the related notes and our report dated February 10, 2025 expressed an unqualified opinion thereon.
 Basis for Opinion
 The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management's Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
 We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.
 Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.
 Definition and Limitations of Internal Control Over Financial Reporting
 A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.
 Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

 /s/ Ernst & Young LLP

 San Diego, California
 February 10, 2025

 Item 9B. Other Information
 During the period from October 1, 2024, to December 31, 2024, our executive officers and directors adopted or terminated contracts, instructions or written plans for the purchase or sale of our securities as noted below:

 Name and Title
 Action
 Date
 Trading Arrangement
 Total Shares
 Authorized
 to be Sold***

 Expiration
Date

 Rule 10b5-1*
 Non-Rule 10b5-1**

 Stephen A. Sherwin, M.D.

 Adoption

 11/7/2024
 X
 13,831
 5/7/2025

 Jude Onyia, Ph. D.

 Adoption

 11/18/2024
 X
 89,090
 12/31/2025

 Chief Scientific Officer

 David W. Boyer

 Termination

 12/11/2024
 X
 18,571
 2/15/2025

 Chief Corporate Affairs Officer

 ______________
 * Intended to satisfy the affirmative defense of Rule 10b5-1(c)
 ** Not intended to satisfy the affirmative defense of Rule 10b5-1(c)
 *** Represents the maximum number of shares that may be sold pursuant to the 10b5-1 arrangement. The number of shares sold is dependent on the satisfaction of certain conditions as set forth in the written plan and the satisfaction of applicable vesting conditions of equity awards.
 Executive Severance Plan
 On February 7, 2025, the compensation committee of our board of directors (the Compensation Committee) approved and adopted an Executive Severance Plan (the Severance Plan), pursuant to which executive officers are eligible to participate, including Kyle W. Gano, Ph. D., our President and Chief Executive Officer, Matthew C. Abernethy, our Chief Financial Officer, Eric Benevich, our Chief Commercial Officer, Jude Onyia, Ph. D., our Chief Scientific Officer, and Eiry W. Roberts, M.D., our Chief Medical Officer (each, a Covered Employee, and collectively, the Covered Employees). Pursuant to the Severance Plan, the Covered Employees are eligible to receive the severance benefits described below, contingent upon the respective Covered Employee's execution of a general release of claims in favor of the Company as further described in the Severance Plan. The severance benefits provided pursuant to the Severance Plan supersede any severance benefits to which the Covered Employees were previously entitled, including pursuant to their respective employment agreements.
 The Severance Plan provides that, upon (a) a termination of a Covered Employee's employment without "cause" (as defined in the Severance Plan) and other than due to death or "disability" (as defined in the Severance Plan) or (b) the Covered Employee's "resignation for good reason" (as defined in the Severance Plan), in each case outside of the time period beginning with the date on which a "change in control" (as defined in the Severance Plan) occurs and ending 12 months following the change in control, or the "change in control determination period," the Covered Employee will be entitled to receive: (1) cash severance equal to the product of (x) the sum of (i) the Covered Employee's annual base salary and (ii) the Covered Employee's target annual incentive bonus for the year of termination, multiplied by (y) 1 (or 1.5 for Dr. Gano); (2) a cash payment equal to the Covered Employee's pro rata annual incentive bonus for the year of termination based on actual achievement of the applicable performance goals for such year; (3) payment of premiums for continued coverage under the Company's group health plans for up to 12 months (or 18 months for Dr. Gano); (4) accelerated vesting of the Covered Employee's outstanding time-vesting equity awards to the extent such awards were scheduled to vest under their terms based on the Covered Employee's continued service over the 12-month period (or 15-month period for Dr. Gano) following the date of termination; and (5) vesting of the Covered Employee's outstanding performance-vesting equity awards to the extent the Compensation Committee determines, in its sole discretion, that the applicable performance goals for such awards have been met as of the date of termination.

 In addition, the Severance Plan provides that, upon (a) a termination of a Covered Employee's employment without "cause" and other than due to death or "disability" or (b) the Covered Employee's "resignation for good reason, in each case within the change in control determination period, the Covered Employee will be entitled to receive, in lieu of the benefits described above: (1) a cash payment equal to the product of (x) the sum of (i) the Covered Employee's annual base salary and (ii) the Covered Employee's target annual incentive bonus for the year of termination, multiplied by (y) 1.5 (or 2 for Dr. Gano); (2) a cash payment equal to the Covered Employee's pro rata target annual incentive bonus for the year of termination; (3) payment of premiums for continued coverage under the Company's group health plans for up to 18 months (or 24 months for Dr. Gano); and (4) full vesting acceleration of the Covered Employee's outstanding equity awards, with performance-vesting equity awards vesting at the greater of (x) the target level of performance or (y) the actual level of performance measured in accordance with the applicable performance goals as of the date of termination, as determined by the Compensation Committee in its sole discretion.
 The Severance Plan further provides that, upon the termination of a Covered Employee's employment due to his or her death or "disability" (as defined in the Severance Plan), the Covered Employee will be entitled to receive full vesting acceleration of the Covered Employee's outstanding equity awards, with performance-vesting equity awards vesting at the greater of (x) the target level of performance or (y) the actual level of performance measured in accordance with the applicable performance goals as of the date of termination, as determined by the Compensation Committee in its sole discretion.
 The foregoing description of the Severance Plan does not purport to be complete and is qualified in its entirety by reference to the full text of the Severance Plan, a copy of which is filed as Exhibit 10.26 to this Annual Report on Form 10-K.
 Amendment and Restatement of Employment Arrangements
 In connection with the adoption of the Severance Plan, and upon the approval by the Compensation Committee, on February 7, 2025, we entered into amended and restated employment agreements (the Amended Employment Agreements) with each of our executive officers, including Dr. Gano, Mr. Abernethy, Mr. Benevich, Dr. Onyia, and Dr. Roberts. The Amended Employment Agreements amend and restate the employment agreements that we previously entered into with our executive officers. Provisions that were amended in include, among other things:
 • Each Amended Employment Agreement provides that the executive officer is eligible for severance benefits under the terms and conditions of the Severance Plan and that such benefits supersede the severance benefits set forth in his or her prior employment agreement.
 • Pursuant to their respective Amended Employment Agreements, Dr. Gano, Mr. Abernethy, Mr. Benevich, Dr. Onyia, and Dr. Roberts will receive an annual base salary of $920,000, $725,913, $668,690, $720,520 and $731,400, respectively, and will continue to be eligible to receive an annual cash incentive bonus with a target bonus amount equal to 50% (or 100% for Dr. Gano) of his or her base pay earned for the applicable year.
 • Each Amended Employment Agreement provides that compensation provided thereunder, under the Severance Plan, or otherwise awarded or paid to the executive officer in connection with his or her employment with the Company will be subject to recoupment in accordance with the following, as applicable: (i) the Neurocrine Biosciences, Inc. Policy for Recoupment of Incentive Compensation, as may be amended from time to time (covering incentive compensation that is received by a covered officer prior to October 2, 2023); (ii) the Neurocrine Biosciences, Inc. Incentive Compensation Recoupment Policy, as may be amended from time to time (covering incentive compensation that is received by a covered officer on or after October 2, 2023); (iii) any clawback policy that we are required to adopt pursuant to the listing standards of any national securities exchange or association on which our securities are listed or as is otherwise required by the Dodd-Frank Wall Street Reform and Consumer Protection Act or other applicable law; and (iv) any other clawback policy that we adopt.
 The foregoing is only a brief description of certain terms of the Amended Employment Agreements, does not purport to be complete, and is qualified in its entirety by reference to the full text of the Amended Employment Agreements, copies of which are filed as Exhibits 10.31 through 10.35 to this Annual Report on Form 10-K.

 Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections
 None.

 Item 10. Directors, Executive Officers and Corporate Governance
 Information required by this item will be contained in our Definitive Proxy Statement for our 2025 Annual Meeting of Stockholders, to be filed pursuant to Regulation 14A with the SEC within 120 days of December 31, 2024. Such information is incorporated herein by reference.
 We have adopted a code of ethics that applies to our Chief Executive Officer, Chief Financial Officer, and to all of our other officers, directors, employees and agents. The code of ethics is available at the Corporate Governance section of the Investors page on our website at www.neurocrine.com. We intend to disclose future amendments to, or waivers from, certain provisions of our code of ethics on the above website within four business days following the date of such amendment or waiver. Information found on, or accessible through, our website is not part of, and is not incorporated into, this Annual Report on Form 10-K.

 Item 11. Executive Compensation
 Information required by this item will be contained in our Definitive Proxy Statement for our 2025 Annual Meeting of Stockholders, to be filed pursuant to Regulation 14A with the SEC within 120 days of December 31, 2024. Such information is incorporated herein by reference.

 Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
 Information required by this item will be contained in our Definitive Proxy Statement for our 2025 Annual Meeting of Stockholders, to be filed pursuant to Regulation 14A with the SEC within 120 days of December 31, 2024. Such information is incorporated herein by reference.

 Item 13. Certain Relationships and Related Transactions, and Director Independence
 Information required by this item will be contained in our Definitive Proxy Statement for our 2025 Annual Meeting of Stockholders, to be filed pursuant to Regulation 14A with the SEC within 120 days of December 31, 2024. Such information is incorporated herein by reference.

 Item 14. Principal Accounting Fees and Services
 Information required by this item will be contained in our Definitive Proxy Statement for our 2025 Annual Meeting of Stockholders, to be filed pursuant to Regulation 14A with the SEC within 120 days of December 31, 2024. Such information is incorporated herein by reference.

 Item 15. Exhibits, Financial Statement Schedules
 (a) Documents filed as part of this report.
 1. List of Financial Statements. The following are included in Item 8 of this report:
 Report of Independent Registered Public Accounting Firm
 Consolidated Balance Sheets as of December 31, 2024 and 2023
 Consolidated Statements of Income and Comprehensive Income for the years ended December 31, 2024, 2023, and 2022
 Consolidated Statements of Stockholders' Equity for the years ended December 31, 2024, 2023, and 2022
 Consolidated Statements of Cash Flows for the years ended December 31, 2024, 2023, and 2022
 Notes to the Consolidated Financial Statements
 2. List of all Financial Statement schedules. All schedules are omitted because they are not applicable, or the required information is shown in the Financial Statements or notes thereto.
 3. List of Exhibits required by Item 601 of Regulation S-K. See part (b) below.
 (b) Exhibits. The following exhibits are filed as part of, or incorporated by reference into, this report:

 Exhibit

 3.1
 Certificate of Incorporation, as amended

 Incorporated by reference to Exhibit 3.1 of the Company's Quarterly Report on Form 10-Q filed on November 5, 2018

 3.2
 Bylaws, as amended

 Incorporated by reference to Exhibit 3.2 of the Company's Quarterly Report on Form 10-Q filed on October 30, 2024

 4.1
 Form of Common Stock Certificate

 Incorporated by reference to the Company's Registration Statement on Form S-1 (Registration No. 333-03172)

 4.2
 Indenture, dated as of May 2, 2017, by and between the Company and U.S. Bank National Association, as Trustee

 Incorporated by reference to Exhibit 4.1 of the Company's Current Report on Form 8-K filed on May 2, 2017

 4.3
 First Supplemental Indenture, dated as of December 22, 2021, by and between the Company and U.S. Bank National Association, as Trustee

 Incorporated by reference to Exhibit 4.3 of the Company's Annual Report on Form 10-K filed on February 11, 2022

 4.4
 Form of Note representing the Company's 2.25% Convertible Notes due 2024

 Incorporated by reference to Exhibit 99.1 of the Company's Current Report on Form 8-K filed on May 2, 2017

 4.5
 Description of Common Stock of the Company

 Incorporated by reference to Exhibit 4.4 of the Company's Annual Report on Form 10-K filed on February 7, 2020

 19.1

 Neurocrine Biosciences, Inc. Insider Trading Policy

 21.1
 Subsidiaries of the Company

 23.1
 Consent of Independent Registered Public Accounting Firm

 31.1
 Certification of Chief Executive Officer pursuant to Rules 13a-14 and 15d-14 promulgated under the Securities Exchange Act of 1934

 31.2
 Certification of Chief Financial Officer pursuant to Rules 13a-14 and 15d-14 promulgated under the Securities Exchange Act of 1934

 32**

 Certifications of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

 97+

 Neurocrine Biosciences, Inc. Clawback Policy

 Incorporated by reference to Exhibit 97 of the Company's Annual Report on Form 10-K filed on February 9, 2024

 101.INS

 101.SCH

 101.CAL

 101.DEF

 101.LAB

 101.PRE

 Collaboration and License Agreements:

 10.1*

 Collaboration Agreement dated June 15, 2010, by and between Abbott International Luxembourg S.a.r.l. and the Company as amended on August 31, 2011

 Incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q filed on May 5, 2021

 10.2*

 First Amendment to Collaboration and License Agreement Dated August 31, 2011 between the Company and Abbott International Luxemburg S.a.r.l.

 Incorporated by reference to Exhibit 10.2 of the Company's Quarterly Report on Form 10-Q filed on May 5, 2021

 10.3*

 Collaboration and License Agreement dated March 31, 2015 between Mitsubishi Tanabe Pharma Corporation and the Company

 Incorporated by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q filed on May 5, 2021

 10.4*
 Collaboration and License Agreement dated January 28, 2019 between Voyager Therapeutics, Inc. and the Company

 10.5
 Stock Purchase Agreement dated January 28, 2019 between Voyager Therapeutics, Inc. and the Company

 Incorporated by reference to Exhibit 10.6 of the Company's Annual Report on Form 10-K filed on February 7, 2019

 10.6
 Amendment No. 1 to Collaboration and License Agreement dated June 14, 2019 between Voyager Therapeutics, Inc. and the Company

 Incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q filed on July 29, 2019

 10.7*

 Exclusive License Agreement dated June 12, 2020 between Takeda Pharmaceutical Company Limited and the Company

 Incorporated by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q filed on August 3, 2020

 10.8*

 Collaboration and License Agreement dated November 22, 2021 between Heptares Therapeutics Limited and the Company

 Incorporated by reference to Exhibit 10.10 of the Company's Annual Report on Form 10-K filed on February 11, 2022

 10.9*

 Collaboration and License Agreement dated January 8, 2023 between Voyager Therapeutics, Inc. and the Company

 Incorporated by reference to Exhibit 10.2 of the Company's Quarterly Report on Form 10-Q filed on May 3, 2023

 10.10*

 First Amendment to the Collaboration and License Agreement, effective April 3, 2024, between the Company and Voyager Therapeutics, Inc.

 Incorporated by reference to Exhibit 10.2 of the Company's Quarterly Report on Form 10-Q filed on August 1, 2024

 10.11

 Stock Purchase Agreement dated January 8, 2023 between Voyager Therapeutics, Inc. and the Company

 Incorporated by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q filed on May 3, 2023

 10.12

 Amended and Restated Investor Agreement dated January 8, 2023 between Voyager Therapeutics, Inc. and the Company

 Incorporated by reference to Exhibit 10.4 of the Company's Quarterly Report on Form 10-Q filed on May 3, 2023

 Equity Plans and Related Agreements:

 10.13+

 Neurocrine Biosciences, Inc. 2011 Equity Incentive Plan, as amended

 Incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q filed on October 30, 2024

 10.14+

 Form of Stock Option Grant Notice and Option Agreement for use under the Neurocrine Biosciences, Inc. 2011 Equity Incentive Plan, and Form of Restricted Stock Unit Grant Notice and Restricted Stock Unit Agreement for use under the Neurocrine Biosciences, Inc. 2011 Equity Incentive Plan

 Incorporated by reference to Exhibit 99.1 of the Company's Current Report on Form 8-K filed on June 1, 2015

 10.15+

 Form of Stock Option Grant Notice and Option Agreement for use under the Neurocrine Biosciences, Inc. 2011 Equity Incentive Plan, as amended

 Incorporated by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q filed on October 30, 2024

 10.16+

 Form of Restricted Stock Unit Award Grant Notice and Restricted Stock Unit Award Agreement for grants on or after February 13, 2024 made under the Neurocrine Biosciences, Inc. 2020 Equity Incentive Plan

 Incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q filed on May 1, 2024

 10.17+

 Form of Stock Option Grant Notice and Option Agreement for grants made to Kevin Gorman on or after February 13, 2024 made under the Neurocrine Biosciences, Inc. 2020 Equity Incentive Plan

 Incorporated by reference to Exhibit 10.2 of the Company's Quarterly Report on Form 10-Q filed on May 1, 2024

 10.18+

 Neurocrine Biosciences, Inc. Inducement Plan, as amended

 Incorporated by reference to Exhibit 10.17 of the Company's Annual Report on Form 10-K filed on February 13, 2018

 10.19+

 Form of Stock Option Grant Notice and Option Agreement for use under the Neurocrine Biosciences, Inc. Inducement Plan, and Form of Restricted Stock Unit Grant Notice and Restricted Stock Unit Agreement for use under the Neurocrine Biosciences, Inc. Inducement Plan

 Incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q filed on July 29, 2015

 10.20+

 Neurocrine Biosciences, Inc. 2018 Employee Stock Purchase Plan, as amended and restated

 Incorporated by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q filed on August 4, 2022

 10.21+

 Form of Stock Option Grant Notice and Option Agreement for use under the Neurocrine Biosciences, Inc. 2020 Equity Incentive Plan, and Form of Restricted Stock Unit Award Grant Notice and Restricted Stock Unit Award Agreement for use under the Neurocrine Biosciences, Inc. 2020 Equity Incentive Plan

 Incorporated by reference to Exhibit 10.17 of the Company's Annual Report on Form 10-K filed on February 11, 2022

 10.22+

 Neurocrine Biosciences, Inc. 2020 Equity Incentive Plan, as amended and restated

 Incorporated by reference to Exhibit 10.2 of the Company's Quarterly Report on Form 10-Q filed on October 30, 2024

 10.23+

 Neurocrine Biosciences, Inc. 2011 Equity Incentive Plan, as amended

 Incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q filed on October 30, 2024

 10.24+

 Neurocrine Biosciences, Inc. 2020 Equity Incentive Plan, as amended and restated

 Incorporated by reference to Exhibit 10.2 of the Company's Quarterly Report on Form 10-Q filed on October 30, 2024

 10.25+

 Form of Stock Option Grant Notice and Option Agreement for use under the Neurocrine Biosciences, Inc. 2011 Equity Incentive Plan, as amended

 Incorporated by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q filed on October 30, 2024

 Agreements with Officers and Directors:

 10.26+

 Neurocrine Biosciences, Inc. Executive Severance Plan effective February 7, 2025

 10.27+

 Form of Indemnity Agreement entered into between the Company and its officers and directors

 Incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q filed on November 1, 2017

 10.28+

 Amended and Restated Employment Agreement effective August 1, 2007 between the Company and Kevin C. Gorman, Ph. D.

 Incorporated by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q filed on August 3, 2007

 10.29+

 Form of Amendment to Employment Agreement for executive officers, effective as of December 15, 2010

 Incorporated by reference to Exhibit 10.32 of the Company's Annual Report on Form 10-K filed on February 11, 2008

 10.30+

 Amended and Restated Employment Agreement effective October 11, 2024 between the Company and Kyle W. Gano, Ph. D.

 10.31+

 Amended and Restated Employment Agreement effective February 7, 2025 between the Company and Kyle W. Gano, Ph. D.

 10.32+

 Amended and Restated Employment Agreement effective February 7, 2025 between the Company and Matthew C. Abernethy

 10.33+

 Amended and Restated Employment Agreement effective February 7, 2025 between the Company and Eric Benevich

 10.34+

 Amended and Restated Employment Agreement effective February 7, 2025 between the Company and Jude Onyia

 10.35+

 Amended and Restated Employment Agreement effective February 7, 2025 between the Company and Eiry W. Roberts

 Agreements Related to Real Property:

 10.36

 Amended and Restated Lease dated November 1, 2011 between the Company and Kilroy Realty, L.P.

 Incorporated by reference to Exhibit 99.2 of the Company's Current Report on Form 8-K filed on January 18, 2012

 10.37

 First Amendment to Amended and Restated Lease between the Company and Kilroy Realty, L.P., dated June 5, 2017

 Incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q filed on August 3, 2017

 10.38

 Second Amendment to Amended and Restated Lease between the Company and Kilroy Realty, L.P., dated October 12, 2017

 Incorporated by reference to Exhibit 10.3 of the Company's Quarterly Report on Form 10-Q filed on November 1, 2017

 10.39

 Third Amendment to Amended and Restated Lease between the Company and Kilroy Realty, L.P. dated August 7, 2019

 Incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q filed on November 4, 2019

 10.40

 Commercial Lease dated February 8, 2022, by and between the Company and Gemdale Aperture Phase I, LLC

 Incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q filed on May 4, 2022

 +
 Management contract or compensatory plan or arrangement.

 *

 Certain information in this exhibit has been omitted pursuant to Item 601 of Regulation S-K.

 **

 These certifications are being furnished solely to accompany this annual report pursuant to 18 U.S.C. Section 1350 and are not being filed for purposes of Section 18 of the Securities Exchange Act of 1934 and are not to be incorporated by reference into any filing of Neurocrine Biosciences, Inc., whether made before or after the date hereof, regardless of any general incorporation language in such filing.

 Except as specifically noted above, the Company's Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K have a Commission File Number of 000-22705.

 (c) Financial Statement Schedules. See Item 15(a)(2) above.

 SIGNATURES
 Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

 (Registrant)

 By:
 /s/ Kyle W. Gano

 Kyle W. Gano

 Chief Executive Officer

 Date:
 February 10, 2025

 By:
 /s/ Matthew C. Abernethy

 Matthew C. Abernethy

 Chief Financial Officer

 Date:
 February 10, 2025

 POWER OF ATTORNEY
 KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Kyle W. Gano and Matthew C. Abernethy, and each of them, as his or her true and lawful attorneys-in-fact and agents, with full power of substitution for him or her, and in his or her name in any and all capacities, to sign any and all amendments to this Annual Report on Form 10-K, and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power of authority to do and perform each and every act and thing requisite and necessary to be done therewith, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, and any of them, his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.
 Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the Registrant and in the capacities indicated as of February 10, 2025:

 Signature
 Title

 /s/ Kyle W. Gano

 Chief Executive Officer and Director

 Kyle W. Gano, Ph. D.
 (Principal Executive Officer)

 /s/ Matthew C. Abernethy

 Chief Financial Officer

 Matthew C. Abernethy
 (Principal Financial and Accounting Officer)

 /s/ William H. Rastetter
 Chairman of the Board of Directors

 William H. Rastetter, Ph. D.

 /s/ Kevin C. Gorman

 Kevin C. Gorman, Ph. D.

 /s/ Gary A. Lyons

 Gary A. Lyons

 /s/ Johanna Mercier

 Johanna Mercier

 /s/ George J. Morrow

 George J. Morrow

 /s/ Leslie V. Norwalk

 Leslie V. Norwalk

 /s/ Christine A. Poon

 Christine A. Poon

 /s/ Richard F. Pops

 Richard F. Pops

 /s/ Shalini Sharp

 Shalini Sharp

 /s/ Stephen A. Sherwin

 Stephen A. Sherwin, M.D.