Gilead Sciences 10-K 2020-12-31

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

For the fiscal year ended December 31, 2020

or

For the transition period from to

Commission File No. 0-19731

GILEAD SCIENCES, INC.

(Exact Name of Registrant as Specified in Its Charter)

333 Lakeside Drive, Foster City, California 94404

(Address of principal executive offices) (Zip Code)

650-574-3000

(Registrant’s Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act:

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 and post such files). Yes ☒ No ¨

Indicate by check mark whether registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting 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. ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant based upon the closing price of its Common Stock on the Nasdaq Global Select Market on June 30, 2020 was $69.9 billion.*

The number of shares outstanding of the registrant’s Common Stock on February 18, 2021 was 1,256,593,156

DOCUMENTS INCORPORATED BY REFERENCE

Specified portions of the registrant’s proxy statement, which will be filed with the Commission pursuant to Regulation 14A in connection with the registrant’s 2021 Annual Meeting of Stockholders, to be held on May 12, 2021, are incorporated by reference into Part III of this Report.

• Based on a closing price of $76.94 per share on June 30, 2020. Excludes 346,304,310 shares of the registrant’s Common Stock held by executive officers, directors and any stockholders whose ownership exceeds 5% of registrant’s common stock outstanding at June 30, 2020. Exclusion of such shares should not be construed to indicate that any such person possesses the power, direct or indirect, to direct or cause the direction of the management or policies of the registrant or that such person is controlled by or under common control with the registrant.

GILEAD SCIENCES, INC.

2020 Form 10-K Annual Report

Table of Contents

We own or have rights to various trademarks, copyrights and trade names used in our business, including the following: GILEAD®, GILEAD SCIENCES®, AMBISOME®, ATRIPLA®, BIKTARVY®, CAYSTON®, COMPLERA®, DESCOVY®, DESCOVY FOR PREP®, EMTRIVA®, EPCLUSA®, EVIPLERA®, GENVOYA®, HARVONI®, HEPSERA®, JYSELECA®, LETAIRIS®, ODEFSEY®, RANEXA®, SOVALDI®, STRIBILD®, TECARTUSTM, TRODELVY®, TRUVADA®, TRUVADA FOR PREP®, TYBOST®, VEKLURY®, VEMLIDY®, VIREAD®, VOSEVI®, YESCARTA® and ZYDELIG®. LEXISCAN® is a registered trademark of Astellas U.S. LLC. MACUGEN® is a registered trademark of Bausch Health Ireland Limited. SYMTUZA® is a registered trademark of Janssen Sciences Ireland Unlimited Company. TAMIFLU® is a registered trademark of Hoffmann-La Roche Inc. HEPCLUDEX® is a registered trademark of MYR GmbH. This report also refers to trademarks, service marks and trade names of other companies.

This Annual Report on Form 10-K, including the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” contains forward-looking statements regarding future events and our future results that are subject to the safe harbors created under the Securities Act of 1933, as amended (the “Securities Act”), and the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Words such as “expect,” “anticipate,” “target,” “goal,” “project,” “hope,” “intend,” “plan,” “believe,” “seek,” “estimate,” “continue,” “may,” “could,” “should,” “might,” “forecast,” variations of such words and similar expressions are intended to identify such forward-looking statements. In addition, any statements other than statements of historical fact are forward-looking statements, including statements regarding overall trends, operating cost and revenue trends, liquidity and capital needs, collaboration and licensing arrangements, ongoing litigation and investigation matters, statements regarding the anticipated future impact on our business of the ongoing coronavirus disease 2019 (“COVID-19”) and related public health measures, statements regarding the development, manufacturing and distribution of Veklury as a treatment for COVID-19 and other statements of expectations, beliefs, future plans and strategies, anticipated events or trends and similar expressions.

We have based these forward-looking statements on our current expectations about future events. These statements are not guarantees of future performance and involve risks, uncertainties and assumptions that are difficult to predict. Our actual results may differ materially from those suggested by these forward-looking statements for various reasons, including those identified in Part I, Item 1A of this Annual Report on Form 10-K under the heading “Risk Factors.” Given these risks and uncertainties, you are cautioned not to place undue reliance on forward-looking statements. The forward-looking statements included in this report are made only as of the date hereof. Except as required under federal securities laws and the rules and regulations of the Securities and Exchange Commission (“SEC”), we do not undertake, and specifically decline, any obligation to update any of these statements or to publicly announce the results of any revisions to any forward-looking statements after the distribution of this report, whether as a result of new information, future events, changes in assumptions or otherwise.

PART I

Gilead Sciences, Inc. (“Gilead”, “we”, “our” or “us”) is a biopharmaceutical company that has pursued and achieved breakthroughs in medicine for more than three decades, with the goal of creating a healthier world for all people. We are committed to advancing innovative medicines to prevent and treat life-threatening diseases, including HIV, viral hepatitis and cancer. We operate in more than 35 countries worldwide, with headquarters in Foster City, California.

Our Business

Products

Our innovative medicines represent advancements by offering first-in-class treatments, greater efficacy, enhanced modes of delivery, more convenient treatment regimens, improved resistance profiles and reduced side effects. Our focus on innovation has allowed us to deliver marketed products across multiple therapeutic areas.

In 2020, our primary revenue-generating products and the approved indications in the United States are as follows:

HIV/AIDS

• Biktarvy****®** is an oral formulation dosed once a day for the treatment of HIV-1 infection in certain patients. Biktarvy is a single tablet regimen of a fixed-dose combination of our antiretroviral medications, bictegravir, emtricitabine and tenofovir alafenamide (“TAF”).

• Genvoya****®** is an oral formulation dosed once a day for the treatment of HIV-1 infection in certain patients. Genvoya is a single tablet regimen of a fixed-dose combination of our antiretroviral medicines, elvitegravir, cobicistat, emtricitabine and TAF.

• Descovy****®** is an oral formulation indicated in combination with other antiretroviral agents for the treatment of HIV-1 infection in certain patients. Descovy is a fixed-dose combination of our antiretroviral medications, emtricitabine and TAF. Descovy is also approved by U.S. Food and Drug Administration (“FDA”) for a pre-exposure prophylaxis (“PrEP”) indication to reduce the risk of sexually acquired HIV-1 infection in certain at-risk patients.

• Odefsey****®** is an oral formulation dosed once a day for the treatment of HIV-1 infection in certain patients. Odefsey is a single tablet regimen of a fixed-dose combination of our antiretroviral medications, emtricitabine and TAF, and rilpivirine marketed by Janssen Sciences Ireland Unlimited Company, one of the Janssen Pharmaceutical Companies of Johnson & Johnson (“Janssen”).

• Truvada****®** is an oral formulation indicated in combination with other antiretroviral agents for the treatment of HIV-1 infection in certain patients. It is a fixed-dose combination of our antiretroviral medications, TDF and emtricitabine. Truvada is also approved by FDA for a PrEP indication to reduce the risk of sexually acquired HIV-1 infection in certain at-risk patients.

• Complera****®/Eviplera®** is an oral formulation dosed once a day for the treatment of HIV-1 infection in certain patients. The product, marketed in the United States as Complera and in Europe as Eviplera, is a single tablet regimen of a fixed-dose combination of our antiretroviral medications, tenofovir disoproxil fumarate (“TDF”) and emtricitabine, and Janssen’s rilpivirine hydrochloride.

• Stribild****®** is an oral formulation dosed once a day for the treatment of HIV-1 infection in certain patients. Stribild is a single tablet regimen of a fixed-dose combination of our antiretroviral medications, elvitegravir, cobicistat, TDF and emtricitabine.

• Atripla****®** is an oral formulation indicated as a complete regimen for the treatment of HIV-1 infection in certain patients. Atripla is a fixed-dose combination of our antiretroviral medications, TDF and emtricitabine, and Bristol-Myers Squibb Company (“BMS”)’s efavirenz.

COVID-19

• Veklury****®** (remdesivir), an injection for intravenous use, is a nucleotide analog RNA polymerase inhibitor indicated for certain patients for the treatment of coronavirus disease 2019 (“COVID-19”) requiring hospitalization.

Liver Diseases

• Epclusa****®** is an oral formulation of a once-daily single tablet regimen of sofosbuvir and velpatasvir for the treatment of chronic hepatitis C virus (“HCV”) infection in adults and certain pediatric patients with genotype 1, 2, 3, 4, 5 or 6: (i) without cirrhosis or with compensated cirrhosis or (ii) with decompensated cirrhosis for use in combination with ribavirin. In addition, we have an authorized generic version of Epclusa distributed by our separate subsidiary, Asegua Therapeutics LLC.

• Harvoni****®** is an oral formulation of a once-daily, single tablet regimen of ledipasvir and sofosbuvir for the treatment of chronic HCV infection in: (i) adults with genotype 1, 4, 5 or 6 without cirrhosis or with compensated cirrhosis, (ii) adults with genotype 1 infection with decompensated cirrhosis, in combination with ribavirin, (iii) adults with genotype 1 or 4 who are liver transplant recipients without cirrhosis or with compensated cirrhosis, in combination with ribavirin, or (iv) certain pediatric patients with genotype 1, 4, 5 or 6 without cirrhosis or with compensated cirrhosis. In addition, we have an authorized generic version of Harvoni distributed by our separate subsidiary, Asegua Therapeutics LLC.

• Vosevi****®** is an oral formulation of a once-daily, single tablet regimen of sofosbuvir, velpatasvir and voxilaprevir for the re-treatment of chronic HCV infection in adults: (i) with genotype 1, 2, 3, 4, 5 or 6 previously treated with an NS5A inhibitor-containing regimen or (ii) with genotype 1a or 3 previously treated with a sofosbuvir-containing regimen without an NS5A inhibitor.

• Vemlidy****®** is an oral formulation of TAF dosed once a day for the treatment of chronic hepatitis B virus (“HBV”) infection in adults with compensated liver disease.

• Viread****®** is an oral formulation of TDF dosed once a day for the treatment of chronic HBV infection in adults and certain pediatric patients.

Hematology/Oncology/Cell Therapy

• Yescarta****®** (axicabtagene ciloleucel), a suspension for intravenous infusion, is a chimeric antigen receptor (“CAR”) T cell therapy for the treatment of adult patients with relapsed or refractory large B-cell lymphoma after two or more lines of systemic therapy, including diffuse large B-cell lymphoma (“DLBCL”) not otherwise specified, primary mediastinal large B-cell lymphoma, high-grade B-cell lymphoma and DLBCL arising from follicular lymphoma.

• Tecartus****™** (brexucabtagene autoleucel), a suspension for intravenous infusion, is a CAR T cell therapy for the treatment of adult patients with relapsed or refractory mantle cell lymphoma.

• Trodelvy****®** (sacituzumab govitecan-hziy), an injection for intravenous use, is a Trop-2 directed antibody and topoisomerase inhibitor conjugate indicated for the treatment of adult patients with metastatic triple-negative breast cancer who have received at least two prior therapies for metastatic disease. This indication is approved under accelerated approval by FDA, and continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.

• Zydelig**® (idelalisib) is an oral formulation of a kinase inhibitor for the treatment of patients with: (i) relapsed chronic lymphocytic leukemia (“CLL”), in combination with rituximab, for whom rituximab alone would be considered appropriate therapy due to other co-morbidities, (ii) relapsed follicular B-cell non-Hodgkin lymphoma (FL) in patients who have received at least two prior systemic therapies or (iii) relapsed small lymphocytic lymphoma who have received at least two prior systemic therapies.

Other

• Letairis**® (ambrisentan) is an oral formulation of an endothelin receptor antagonist for the treatment of pulmonary arterial hypertension (“PAH”) (WHO Group I) (i) to improve exercise capacity and delay clinical worsening or (ii) in combination with tadalafil to reduce the risks of disease progression and hospitalization for worsening PAH, and to improve exercise ability.

• Ranexa**® (ra

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In evaluating our business, you should carefully consider the following discussion of material risks, events and uncertainties that make an investment in us speculative or risky in addition to the other information in this Annual Report on Form 10-K. A manifestation of any of the following risks and uncertainties could, in circumstances we may or may not be able to accurately predict, materially and adversely affect our business, growth, reputation (including the commercial or scientific reputation of our products), prospects, product pipeline and sales, operating and financial results, financial condition, cash flows, liquidity and stock price. We note these factors for investors as permitted by the Private Securities Litigation Reform Act of 1995. It is not possible to predict or identify all such factors; our operations could also be affected by factors, events or uncertainties that are not presently known to us or that we currently do not consider to present significant risks to our operations. Therefore, you should not consider the following risks to be a complete statement of all the potential risks or uncertainties that we face.

Product and Commercialization Risks

Certain of our products subject us to additional or heightened risks.

HIV Products

We receive a substantial portion of our revenue from sales of our products for the treatment and prevention of HIV infection. During the twelve months ended December 31, 2020, sales of our HIV products accounted for approximately 70% of our total product sales. We may be unable to sustain or increase sales of our HIV products for any number of reasons, including market share gains by competitive products or the inability to introduce new HIV medications necessary to remain competitive. In such case, we may need to scale back our operations, including our future drug development and spending on research and development (“R&D”) efforts. For example, most of our HIV products contain tenofovir alafenamide (“TAF”), tenofovir disoproxil fumarate (“TDF”) and/or emtricitabine (“FTC”), which belong to the nucleoside class of antiviral therapeutics, and any changes to the treatment paradigm for HIV may cause nucleoside-based therapeutics to fall out of favor.

Veklury (remdesivir)

We face risks related to our significant investment in the rapid development, manufacturing and distribution of Veklury (remdesivir), which was approved by the U.S. Food and Drug Administration (“FDA”) in October 2020 as a treatment for hospitalized patients with COVID-19. Given the severity and urgency of the COVID-19 pandemic, we committed significant capital and resources for clinical trials and the scale-up of the production of remdesivir. We expect our investment will continue through 2021 and beyond, as we continue to manufacture large quantities of finished product and conduct additional studies of specific patient populations, develop and evaluate new formulations and delivery methods and combinations with other therapies. While the utilization of remdesivir has largely tracked the level of infections, we are unable to accurately predict our revenues or supply needs over the short and long term due to the potential for new and better therapeutics, the availability and effectiveness of vaccines and fluctuating hospital utilization rates. If we are unable to accurately forecast demand or manufacture Veklury at levels to meet actual demand, then this may result in shortages or excess inventory that may be written off. We are subject to significant public attention and scrutiny over the complex decisions made regarding the clinical data, allocation, distribution and pricing of Veklury, all of which affects our corporate reputation.

Yescarta

Advancing a novel and personalized therapy such as Yescarta, which is a Chimeric Antigen Receptor (“CAR”) T cell therapy, creates significant challenges, including:

• educating and certifying medical personnel regarding the procedures and the potential side effects, such as cytokine release syndrome and neurologic toxicities, in compliance with the Risk Evaluation and Mitigation Strategy program required by FDA;

• securing sufficient supply of other medications to manage side effects, such as tocilizumab and corticosteroids, which may not be available in sufficient quantities, may not adequately control the side effects and/or may have detrimental impacts on the efficacy of Yescarta;

• developing and maintaining a robust and reliable process for engineering a patient’s T cells in our facilities and infusing them back into the patient; and

• conditioning patients with chemotherapy in advance of administering our therapy, which may increase the risk of adverse side effects.

The use of engineered T cells as a potential cancer treatment is a recent development and may not be broadly accepted by physicians, patients, hospitals, cancer treatment centers, payers and others in the medical community. We may not be able to demonstrate to the medical community and payers the potential advantages of Yescarta compared to existing and future therapeutics. For challenges related to the reimbursement of Yescarta, see also “Our existing products are subject to reimbursement pressures from government agencies and other third parties, required rebates and other discounts on our products and other pricing pressures.”

We rely on third-party sites to collect patients’ white blood cells, known as apheresis centers, as well as shippers, couriers, and hospitals for the logistical collection of patients’ white blood cells and ultimate delivery of Yescarta to patients. These vendors may encounter disruptions or difficulties that could result in product loss and regulatory action. Apheresis centers may also choose not to participate in our quality certification process, or we may be unable to complete such certification in a timely manner or at all, which could delay or constrain our manufacturing and commercialization efforts.

Our success depends on developing and commercializing new products or expanding the indications for existing products.

If we are unable to launch commercially successful new products or new indications for existing products our business will be adversely impacted. The launch of commercially successful products is necessary to grow our business, cover our substantial R&D expenses, and offset revenue losses when existing products lose market share due to factors such as competition and loss of patent exclusivity. There are many difficulties and uncertainties inherent in drug development and the introduction of new products. The product development cycle is characterized by significant investments of resources, long lead times and unpredictable outcomes due to the nature of developing medicines for human use. We expend significant time and resources on our product pipeline without any assurance that we will recoup our investments or that our efforts will be commercially successful. A high rate of failure is inherent in the discovery and development of new products, and failure can occur at any point in the process, including late in the process after substantial investment.

We face challenges in accurately forecasting sales because of the difficulties in predicting demand for our products and fluctuations in purchasing patterns or wholesaler inventories.

We may be unable to accurately predict demand for our products, including the uptake of new products, as demand depends on a number of factors. For example, product demand may be adversely affected if physicians do not see the benefit of our products. Additionally, the non-retail sector in the United States, which includes government institutions, including state AIDS Drug Assistance Programs, the U.S. Department of Veterans Affairs, correctional facilities and large health maintenance organizations, tends to be less consistent in terms of buying patterns and often causes quarter-over-quarter fluctuations that

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Not applicable.

Our corporate headquarters are located in Foster City, California, where we house our administrative and certain of our R&D activities. We also have R&D facilities in Emeryville, Oceanside and Santa Monica, California; Gaithersburg, Maryland; Seattle, Washington; Morris Plains, New Jersey; Edmonton, Canada; and Dublin, Ireland. Our principal manufacturing facilities are in El Segundo, La Verne, Oceanside and San Dimas, California; Morris Plains, New Jersey; Edmonton, Canada; Cork, Ireland; and Hoofddorp, Netherlands. For more information about our manufacturing facilities, see Item 1 - Business “Our Manufacturing Facilities.” Our global operations include offices in Europe, North America, Asia, South America, Africa, Australia and the Middle East.

We believe that our existing properties, including both owned and leased sites, are in good condition and suitable for the conduct of our business. We believe our capital resources are sufficient to purchase, lease or construct any additional facilities required to meet our expected long-term growth needs.

For a description of our significant pending legal proceedings, please see Note 14. Commitments and Contingencies - Legal Proceedings of the Notes to Consolidated Financial Statements included in Part II, Item 8 of this Annual Report on Form 10-K.

Not applicable.

PART II

Our common stock is traded on the Nasdaq Global Select Market under the symbol “GILD.”

As of February 18, 2021, we had approximately 1,402 stockholders of record of our common stock.

Performance Graph**(1)**

The following graph compares our cumulative total stockholder return for the past five years to two indices: the Standard & Poor’s 500 Stock Index (“S&P 500 Index”) and the Nasdaq Biotechnology Index (“NBI Index”). The stockholder return shown on the graph below is not necessarily indicative of future performance, and we do not make or endorse any predictions as to future stockholder returns.

Comparison of Cumulative Total Return on Investment for the Past Five Years (2)

(1) This section is not “soliciting material,” is not deemed “filed” with the SEC and is not to be incorporated by reference in any of our filings under the Securities Act or the Exchange Act whether made before or after the date hereof and irrespective of any general incorporation language in any such filing.

(2) Shows the cumulative return on investment assuming an investment of $100 in our common stock, the NBI Index and the S&P 500 Index on December 31, 2015, and assuming that all dividends were reinvested.

Equity Compensation Plan Information

The following table provides certain information with respect to our equity compensation plans in effect as of December 31, 2020:

(1) Does not take into account 20 million restricted stock units, performance share awards or units and phantom shares, which have no exercise price and were granted under our 2004 and 2018 Equity Incentive Plans.

(2) Includes awards and shares previously issuable under The Immunomedics, Inc. Amended and Restated 2014 Long-Term Incentive Plan (the “Immunomedics Plan”), which was assumed in connection with our acquisition of Immunomedics, Inc. and subsequently merged into the 2004 Equity Incentive Plan.

(3) Under our Employee Stock Purchase Plan, participants are permitted to purchase our common stock at a discount on certain dates through payroll deductions within a pre-determined purchase period. Accordingly, these numbers are not determinable.

(4) Includes awards and shares issuable under the Forty Seven, Inc. 2018 Equity Incentive Plan, which was assumed in connection with our acquisition of Forty Seven, Inc. (“Forty Seven”) and subsequently amended and restated as our 2018 Equity Incentive Plan.

Material Features of the Gilead Sciences, Inc. 2018 Equity Incentive Plan

The Forty Seven, Inc. 2018 Equity Incentive Plan was originally established by Forty Seven in June 2018. In connection with Gilead’s acquisition of Forty Seven in April 2020, Gilead assumed the Forty Seven, Inc. 2018 Equity Incentive Plan, and amended and restated it as the Gilead Sciences, Inc. 2018 Equity Incentive Plan (the “2018 Plan”). The 2018 Plan is intended to help the Company secure and retain the services of eligible award recipients, provide incentives for such persons to exert maximum efforts for the success of the Company and any affiliate, and provide a means by which the eligible recipients may benefit from increases in value of Gilead common stock. From and after April 7, 2020, only employees and consultants of Forty Seven as of immediately prior to such date and employees and consultants of Gilead hired on or following such date are eligible to receive grants of new awards under the 2018 Plan.

The 2018 Plan provides for the award of incentive stock options and Nonstatutory stock options, each of which must generally have an exercise price equal to at least the fair market value of our common stock on the date of grant; stock appreciation rights; restricted stock awards; restricted stock unit awards; performance stock awards; other stock awards; and performance cash awards.

As of April 7, 2020, the aggregate number of shares of common stock issuable under the 2018 Plan (from and after such date) was 12,069,378. From and after April 7, 2020, Gilead has granted restricted stock units and stock options under the 2018 Plan, and these are the only types of equity awards outstanding under the plan. As of December 31, 2020, 10.3 million shares of Gilead common stock remained available for issuance under the 2018 Plan.

Issuer Purchases of Equity Securities

In the first quarter of 2016, our Board of Directors authorized a $12.0 billion stock repurchase program (“2016 Program”) under which repurchases may be made in the open market or in privately negotiated transactions. We made repurchases under the 2016 Program starting in April 2016.

In the first quarter of 2020, our Board of Directors authorized a new $5.0 billion stock repurchase program (“2020 Program”), which will commence upon the completion of the 2016 Program. Purchases under the 2020 Program may be made in the open market or in privately negotiated transactions.

During 2020, we repurchased and retired 22 million shares of our common stock for $1.6 billion through open market transactions under the 2016 Program.

As of December 31, 2020, the remaining authorized repurchase amount from both programs was $6.8 billion.

The table below summarizes our stock repurchase activity for the three months ended December 31, 2020:

(1) A total of 232 thousand shares were transferred to us from employees in satisfaction of minimum tax withholding obligations associated with the vesting of restricted stock units during the period. We did not purchase any shares of our common stock in the open market pursuant to our repurchase program.

GILEAD SCIENCES, INC.

SELECTED CONSOLIDATED FINANCIAL DATA

(1) See Management’s Discussion and Analysis of Financial Condition and Results of Operations included in Item 7 of this Annual Report on Form 10-K for a description of our results of operations for 2020.

(2) In 2020, we recorded acquired in-process research and development (“IPR&D”) expenses of $5.9 billion primarily related to our acquisition of Forty Seven, Inc. (“Forty Seven”) as well as other collaborations and investments we entered into during the year. In 2019, we recorded acquired IPR&D expenses of $5.1 billion primarily due to $3.92 billion of upfront collaboration and licensing expenses related to our global research and development collaboration with Galapagos NV, and a pre-tax impairment charge of $800 million from assets obtained in our acquisition of Kite Pharma, Inc. (“Kite”).

(3) In 2020, we recorded discrete tax benefits of $167 million related to settlements with taxing authorities. In 2019, we recorded a deferred tax benefit of $1.2 billion related to intangible asset transfers from a foreign subsidiary to Ireland and the United States. In 2018, we recorded a deferred tax charge of $588 million related to a transfer of acquired intangible assets from a foreign subsidiary to the United States. In December 2017, we recorded an estimated $5.5 billion net charge related to the enactment of the Tax Cuts and Jobs Act (“Tax Reform”). Tax Reform also lowered the corporate tax rate in the United States from 35% to 21% effective for tax years beginning after December 31, 2017.

(4) In 2020, in connection with the acquisition of Immunomedics, we issued $7.25 billion principal amount of senior unsecured notes and borrowed an aggregate principal amount of $1.0 billion under a three-year term loan facility. Also in 2020, we repaid $2.5 billion principal amount of our senior unsecured notes at maturity. In 2019, we repaid $2.8 billion principal amount of our senior unsecured notes at maturity. In 2018, we repaid $1.8 billion principal amount of our senior unsecured notes at maturity and repaid $4.5 billion of term loans borrowed in connection with our acquisition of Kite. In 2017, in connection with the acquisition of Kite, we issued $3.0 billion aggregate principal amount of senior unsecured notes and borrowed $6.0 billion aggregate principal amount term loan facility credit agreement, of which $1.5 billion was repaid in 2017. In 2016, we issued $5.0 billion principal amount of senior unsecured notes and repaid $285 million of principal balance of convertible senior notes and $700 million of principal balance of senior unsecured notes at maturity. See Note 12. Debt and Credit Facilities of the Notes to Consolidated Financial Statements included in Item 8 of this Annual Report on Form 10-K for additional information.

(5) In 2020, we made cash payments of $25.7 billion primarily related to our acquisitions of Immunomedics in October 2020 and Forty Seven in April 2020. See Note 6. Acquisitions of the Notes to Consolidated Financial Statements included in Item 8 of this Annual Report on Form 10-K for additional information.

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations (“MD&A”) is intended to help the reader understand our results of operations and financial condition. MD&A is provided as a supplement to, and should be read in conjunction with, our audited Consolidated Financial Statements and the accompanying Notes to Consolidated Financial Statements and other disclosures included in this Annual Report on Form 10-K (including the disclosures under Part I, Item 1A, “Risk Factors”). Additional information related to the comparison of our results of operations between the years 2019 and 2018 is included in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” of our 2019 Form 10-K filed with the U.S. Securities and Exchange Commission (the “SEC”), and is incorporated by reference into this Annual Report on Form 10-K. Our Consolidated Financial Statements have been prepared in accordance with U.S. generally accepted accounting principles and are presented in U.S. dollars.

MANAGEMENT OVERVIEW

Gilead Sciences, Inc. (“Gilead”, “we”, “our” or “us”) is a biopharmaceutical company that has pursued and achieved breakthroughs in medicine for more than three decades, with the goal of creating a healthier world for all people. We are committed to advancing innovative medicines to prevent and treat life-threatening diseases, including HIV, viral hepatitis and cancer. We operate in more than 35 countries worldwide, with headquarters in Foster City, California.

Our portfolio of marketed products includes AmBisome®, Atripla®, Biktarvy®, Cayston®, Complera®, Descovy®, Descovy for PrEP®, Emtriva®, Epclusa®, Eviplera®, Genvoya®, Harvoni®, Hepsera®, Jyseleca®, Letairis®, Odefsey®, Ranexa®, Sovaldi®, Stribild®, TecartusTM, Trodelvy®, Truvada®, Truvada for PrEP®, Tybost®, Veklury®, Vemlidy®, Viread®, Vosevi®, Yescarta® and Zydelig®. The approval status of Jyseleca varies worldwide, and Jyseleca is not approved in the United States. We also sell and distribute authorized generic versions of Epclusa and Harvoni in the United States through our separate subsidiary, Asegua Therapeutics, LLC. In addition, we sell and distribute certain products through our corporate partners under collaborative agreements.

2020 Business Highlights

Our financial performance was strong in 2020, despite the global impact of the COVID-19 pandemic, which is a clear reflection of the solid underlying fundamentals of our business driven by the HIV franchise and the increased demand we saw for Veklury amid the COVID-19 pandemic. We also continued to expand and strengthen our commercial portfolio and clinical pipeline across various therapeutic areas to drive future growth potential.

• In April, we acquired Forty Seven, Inc. (“Forty Seven”) for approximately $4.7 billion, gaining an investigational drug candidate, magrolimab, which is currently in Phase 2/3 clinical studies for a number of hematological cancers, including myelodysplastic syndrome, acute myeloid leukemia, non-Hodgkin lymphoma and solid tumors.

• In October, we acquired Immunomedics, Inc. (“Immunomedics”) for approximately $20.6 billion and gained Trodelvy, a Trop-2-directed antibody-drug conjugate, which was granted accelerated approval by the U.S. Food and Drug Administration (“FDA”) for the treatment of adult patients with metastatic triple-negative breast cancer (“mTNBC”). Trodelvy has potential broader applicability for multiple tumor types, and is being studied as a monotherapy and combination agent for additional tumor types, including HR+/HER2- breast cancer, urothelial cancer, non-small cell lung cancer and other solid tumors.

• In December, we entered into a definitive agreement to acquire MYR GmbH. Upon closing, which is subject to regulatory clearances and other conditions, the acquisition will provide us with Hepcludex® (bulevirtide), which was conditionally approved by the European Medicines Agency (“EMA”) for the treatment for chronic hepatitis delta virus (“HDV”) in July 2020.

• We significantly expanded our oncology portfolio through licensing, strategic collaboration as well as equity investments with our third-party collaboration partners. Additional information is included in Note 11. Collaborations and Other Arrangements of the Notes to Consolidated Financial Statements included in Item 8 of this Annual Report on Form 10-K.

In addition to the assets we acquired pursuant to our strategic transactions, we developed several other therapies and treatments in our portfolio: Jyseleca, Tecartus and Veklury, the first FDA-approved antiviral therapy for COVID-19. These efforts demonstrate our continued commitment to advancing innovative medicines in areas of unmet need.

Key Product, Pipeline and Corporate Updates*(1)*

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We are exposed to market risks that may result from changes in foreign currency exchange rates, interest rates, credit risks and market price. To reduce certain of these risks, we enter into various types of foreign currency or interest rate derivative hedging transactions, follow investment guidelines and monitor outstanding receivables as part of our risk management program.

Foreign Currency Exchange Risk

We have operations in more than 35 countries worldwide. As a result, our financial results could be significantly affected by factors such as changes in foreign currency exchange rates or weak economic conditions in the foreign markets in which we distribute our products. Our operating results are exposed to changes in foreign currency exchange rates between the U.S. dollar and various foreign currencies, the most significant of which is the Euro. When the U.S. dollar strengthens against these currencies, the relative value of sales made in the respective foreign currency decreases. Conversely, when the U.S. dollar weakens against these currencies, the relative amounts of such sales increase. Overall, we are a net receiver of foreign currencies and, therefore, benefit from a weaker U.S. dollar and are adversely affected by a stronger U.S. dollar relative to those foreign currencies in which we transact significant amounts of business.

Approximately 26% of our product sales were denominated in foreign currencies during 2020. To partially mitigate the impact of changes in currency exchange rates on net cash flows from our foreign currency denominated sales, we may enter into foreign currency exchange forward and option contracts. We also hedge certain monetary assets and liabilities denominated in foreign currencies, which reduces but does not eliminate our exposure to currency fluctuations between the date a transaction is recorded and the date that cash is collected or paid. In general, the market risks of these contracts are offset by corresponding gains and losses on the transactions being hedged.

As of December 31, 2020 and 2019, we had open foreign currency forward contracts with notional amounts of $2.4 billion and $2.9 billion, respectively. A hypothetical 10% adverse movement in foreign currency exchange rates compared with the U.S. dollar relative to exchange rates at December 31, 2020 and 2019 would have resulted in a reduction in fair value of these contracts of approximately $249 million and $285 million, respectively, on this date and, if realized, would negatively affect earnings over the remaining life of the contracts. The analysis does not consider the impact that hypothetical changes in foreign currency exchange rates would have on anticipated transactions that these foreign currency sensitive instruments were designed to offset.

Interest Rate Risk

Our portfolio of available-for-sale debt securities and our senior unsecured notes create an exposure to interest rate risk. With respect to our investment portfolio, we adhere to an investment policy that requires us to limit amounts invested in securities based on credit rating, maturity, industry group and investment type and issuer, except for securities issued by the U.S. government. The goals of our investment policy, in order of priority, are as follows:

• safety and preservation of principal and diversification of risk;

• liquidity of investments sufficient to meet cash flow requirements; and

• competitive after-tax rate of return.

The following table summarizes the expected maturities and average interest rates of our interest-generating assets and interest-bearing liabilities at December 31, 2020:

(1) Amounts represent principal balances. In addition to the senior unsecured fixed rate notes, we have a $2.5 billion five-year revolving credit facility that matures in June 2025. There were no amounts outstanding under the five-year revolving credit facility as of December 31, 2020. See Note 12. Debt and Credit Facilities of the Notes to Consolidated Financial Statements included in Item 8 of this Annual Report on Form 10-K for additional information.

Market Price Risk

We hold shares of common stock of certain publicly traded biotechnology companies primarily in connection with license and collaboration agreements. These equity securities are measured at fair value with any changes in fair value recognized in earnings.

The fair value of these equity securities was approximately $2.4 billion and $3.8 billion as of December 31, 2020 and 2019, respectively. Changes in fair value of these equity securities are impacted by the volatility of the stock market and changes in general economic conditions, among other factors. A hypothetical 20% increase or decrease in the stock prices of these equity securities would increase or decrease their fair value at December 31, 2020 and 2019 by approximately $478 million and $760 million, respectively.

GILEAD SCIENCES, INC.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Years ended December 31, 2020, 2019 and 2018

CONTENTS

Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of Gilead Sciences, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Gilead Sciences, Inc. (the Company) as of December 31, 2020 and 2019, the related consolidated statements of income, comprehensive income, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2020, 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, 2020 and 2019, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2020, 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, 2020, 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 25, 2021 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 Matters

The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters 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 matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

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Not applicable.

Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of Gilead Sciences, Inc.

Opinion on Internal Control over Financial Reporting

We have audited Gilead Sciences, Inc.’s internal control over financial reporting as of December 31, 2020, 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, Gilead Sciences, Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2020, based on the COSO criteria.

As indicated in the accompanying Management’s Report on Internal Control Over Financial Reporting, management’s assessment of and conclusion on the effectiveness of internal control over financial reporting did not include the internal controls of Immunomedics, Inc., which is included in the 2020 consolidated financial statements of the Company and constituted 3% and 11% of total assets and liabilities, respectively, as of December 31, 2020 and less than 1% of revenues for the year then ended. Our audit of internal control over financial reporting of the Company also did not include an evaluation of the internal control over financial reporting of Immunomedics, Inc.

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, 2020 and 2019, the related consolidated statements of income, comprehensive income, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2020, and the related notes and our report dated February 25, 2021 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 Jose, California

February 25, 2021

(a) Evaluation of Disclosure Controls and Procedures

An evaluation as of December 31, 2020 was carried out under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of our “disclosure controls and procedures,” which are defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended (the Exchange Act), as controls and other procedures of a company that are designed to ensure that the information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission’s rules and forms, and that such information is accumulated and communicated to the company’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective at December 31, 2020.

(b) Management’s Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rule 13a-15(f) of the Exchange Act. Our internal control system is designed to provide reasonable assurance regarding the preparation and fair presentation of financial statements for external purposes in accordance with generally accepted accounting principles. All internal control systems, no matter how well designed, have inherent limitations and can provide only reasonable assurance that the objectives of the internal control system are met.

Under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting, based on criteria established by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”) in its 2013 Internal Control-Integrated Framework. Based on our evaluation, we concluded that our internal control over financial reporting was effective as of December 31, 2020.

The scope of management’s assessment of the effectiveness of internal control over financial reporting excluded Immunomedics, Inc., which Gilead acquired in a business combination on October 23, 2020. Total assets, excluding goodwill and intangibles assets, total liabilities, and total revenues of Immunomedics represented approximately 3%, 11% and less than 1% of the total assets, total liabilities and total revenues of Gilead’s Consolidated Financial Statements as of and for the year ended December 31, 2020, respectively.

Our independent registered public accounting firm, Ernst & Young LLP, has audited our Consolidated Financial Statements included in Item 8 of this Annual Report on Form 10-K and have issued a report on our internal control over financial reporting as of December 31, 2020. Their report on the audit of internal control over financial reporting appears below.

(c) Changes in Internal Control over Financial Reporting

Our management, including our Chief Executive Officer and Chief Financial Officer, has evaluated any changes in our internal control over financial reporting that occurred during the quarter ended December 31, 2020, and has concluded that there was no change during such quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Not applicable.

PART III

The information required by this Item concerning our directors and executive officers is incorporated by reference to the sections of our Definitive Proxy Statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A in connection with our 2021 Annual Meeting of Stockholders (the “Proxy Statement”) under the headings “The Gilead Board of Directors - Nominees,” “Board Structure,” “Executive Officers,” and, if applicable, “Delinquent Section 16(a) Reports.”

Our written Code of Ethics applies to all of our directors and employees, including our executive officers, including without limitation our principal executive officer, principal financial officer, principal accounting officer or controller or persons performing similar functions. The Code of Ethics is available on our website at http://www.gilead.com in the Investors section under “Corporate Governance.” We intend to disclose future amendments to certain provisions of the Code of Ethics, and waivers of the Code of Ethics granted to executive officers and directors, on the website within four business days following the date of the amendment or waiver.

The information required by this Item is incorporated by reference to the sections of the Proxy Statement under the headings “Executive Compensation,” “Committees of our Board of Directors,” “Compensation Committee Report,” and “Compensation of Non-Employee Board Members.”

The information required by this Item is incorporated by reference to Item 5 of our Annual Report on Form 10-K under the heading “Equity Compensation Plan Information” and the section of the Proxy Statement under the heading “Security Ownership of Certain Beneficial Owners and Management.”

The information required by this Item is incorporated by reference to the sections of the Proxy Statement under the headings “The Gilead Board of Directors,” and “Board Processes.”

The information required by this Item is incorporated by reference to the section of the Proxy Statement under the heading “Principal Accountant Fees and Services.”

PART IV

(a) The following documents are filed as part of this Annual Report on Form 10-K:

(1) Index list to Consolidated Financial Statements:

(2) All other schedules are omitted because they are not required or the required information is included in the financial statements or notes thereto.

(3) Exhibits.

The following exhibits are filed herewith or incorporated by reference:

(1) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on September 14, 2020, and incorporated herein by reference.

(2) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on March 2, 2020, and incorporated herein by reference.

(3) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on May 9, 2019, and incorporated herein by reference.

(4) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on April 1, 2011, and incorporated herein by reference.

(5) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on December 13, 2011, and incorporated herein by reference.

(6) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on March 7, 2014, and incorporated herein by reference.

(7) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on November 17, 2014, and incorporated herein by reference.

(8) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on September 14, 2015, and incorporated herein by reference.

(9) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on September 20, 2016, and incorporated herein by reference.

(10) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on September 30, 2020, and incorporated herein by reference.

(11) Filed as an exhibit to Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019, and incorporated herein by reference.

(12) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on May 12, 2017, and incorporated herein by reference.

(13) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2011, and incorporated herein by reference.

(14) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2019, and incorporated herein by reference.

(15) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2019, and incorporated herein by reference.

(16) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2020, and incorporated herein by reference.

(17) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2009, and incorporated herein by reference.

(18) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2013, and incorporated herein by reference

(19) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2014, and incorporated herein by reference.

(20) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2020, and incorporated herein by reference.

(21) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2016, and incorporated herein by reference.

(22) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on May 8, 2015, and incorporated herein by reference.

(23) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2018, and incorporated herein by reference.

(24) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2018, and incorporated herein by reference.

(25) Filed as an exhibit to Registrant’s Current Report on Form 8-K filed on December 10, 2018, and incorporated herein by reference.

(26) Filed as an exhibit to Registrant’s Registration Statement on Form S-1 (No. 33-55680), as amended, and incorporated herein by reference.

(27) Filed as an exhibit to Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2006, and incorporated herein by reference.

(28) Filed as an exhibit to Registrant’s Annual Report on Form 10-K for the fiscal year ended March 31, 1994, and incorporated herein by reference.

(29) Filed as an exhibit to Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2000, and incorporated herein by reference.

(30) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2006, and incorporated herein by reference.

(31) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2013, and incorporated herein by reference.

(32) Filed as an exhibit to Triangle Pharmaceuticals, Inc.’s Quarterly Report on Form 10-Q/A filed on November 3, 1999, and incorporated herein by reference.

(33) Filed as an exhibit to Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2005, and incorporated herein by reference.

(34) Filed as an exhibit to Registrant’s Amendment No. 1 to Annual Report on Form 10-K/A filed on April 18, 2019, and incorporated herein by reference.

(35) Filed as an exhibit to Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014, and incorporated herein by reference.

(36) Filed as an exhibit to Kite Pharma, Inc.’s Registration Statement on Form S-1/A (No. 333-196081) filed on June 17, 2014, and incorporated herein by reference.

• Management contract or compensatory plan or arrangement.

** Filed herewith.

*** Furnished herewith.

+ Certain confidential portions of this Exhibit were omitted by means of marking such portions with an asterisk (the Mark). This Exhibit has been filed separately with the Secretary of the Securities and Exchange Commission without the Mark pursuant to Registrant’s Application Requesting Confidential Treatment under Rule 24b-2 under the Securities Exchange Act of 1934, as amended.

++ Certain confidential portions of this Exhibit were omitted by means of marking such portions with the Mark because the identified confidential portions are (i) not material and (ii) would be competitively harmful if publicly disclosed.

None.

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.

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Daniel P. O’Day and Brett A. Pletcher, and each of them, as his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him or her and in his or her name, place, and stead, in any and all capacities, to sign any and all amendments to this Report, and to file the same, with all 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 and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming that all said attorneys-in-fact and agents, or any of them or their or his 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, as amended, this Report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.