Agios Pharmaceuticals
Annual Report 2021

Plain-text annual report

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-K (Mark One) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR Commission File Number: 001-36014 AGIOS PHARMACEUTICALS, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 88 Sidney Street, Cambridge, MA (Address of principal executive offices) 26-0662915 (IRS Employer Identification No.) 02139 (Zip Code) Title of Class Common Stock, Par Value $0.001 per share Registrant’s telephone number, including area code: (617) 649-8600 Securities registered pursuant to Section 12(b) of the Act: Trading symbol(s) AGIO Name of Exchange on Which Registered Nasdaq Global Select Market Securities registered pursuant to Section 12(g) of the Act: None 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. Emerging growth Large accelerated filer ☑ company ☐ Smaller reporting company ☐ Non-accelerated filer ☐ Accelerated filer ☐ 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 Act). Yes ☐ No ☑ The aggregate market value of the voting and non-voting Common Stock held by non-affiliates of the registrant computed by reference to the price of the registrant’s Common Stock as of June 30, 2021 (based on the last reported sale price on the Nasdaq Global Select Market as of such date) was $3,267,590,001. As of February 18, 2022, there were 54,637,501 shares of Common Stock, $0.001 par value per share, outstanding. DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant’s definitive proxy statement for its 2022 Annual Meeting of Stockholders to be filed pursuant to Regulation 14A within 120 days of the end of the registrant’s fiscal year ended December 31, 2021 are incorporated by reference into Part III of this Annual Report on Form 10-K to the extent stated herein. Table of Contents Item 1. Item 1A. Item 1B. Item 2. Item 3. Item 4. Item 5. Item 6. Item 7. Item 7A. Item 8. Item 9. Item 9A. Item 9B. Item 9C. Item 10. Item 11. Item 12. Item 13. Item 14. Item 15. Item 16. Table of contents PART I Page Business Risk Factors Unresolved Staff Comments Properties Legal Proceedings Mine Safety Disclosures PART II Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities Reserved Management’s Discussion and Analysis of Financial Condition and Results of Operations Quantitative and Qualitative Disclosures about Market Risk Financial Statements and Supplementary Data Changes in and Disagreements with Accountants on Accounting and Financial Disclosure Controls and Procedures Other Information Disclosure Regarding Foreign Jurisdictions that Prevent Inspections PART III Directors, Executive Officers and Corporate Governance Executive Compensation Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters Certain Relationships and Related Transactions, and Director Independence Principal Accountant Fees and Services Exhibits and Financial Statement Schedules Form 10-K Summary PART IV i 3 30 56 56 56 56 57 58 59 69 69 70 70 70 71 72 72 72 72 72 73 77 Table of Contents References to Agios PART I Throughout this Annual Report on Form 10-K, “the Company,” “we,” “us,” and “our,” and similar expressions, except where the context requires otherwise, refer to Agios Pharmaceuticals, Inc. and its consolidated subsidiaries, and “our board of directors” refers to the board of directors of Agios Pharmaceuticals, Inc. Cautionary Note Regarding Forward-looking Information This Annual Report on Form 10-K contains forward-looking statements that involve substantial risks and uncertainties. All statements, other than statements of historical facts, contained in this Annual Report on Form 10-K, including statements regarding our strategy, future operations, future financial position, future revenue, projected costs, prospects, plans, and objectives of management, are forward-looking statements. The words “anticipate,” “believe,” “estimate,” “expect,” “goal,” “intend,” “may,” “plan,” “predict,” “project,” “strategy,” “target,” “potential,” “will,” “would,” “could,” “should,” “continue,” “vision” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. The forward-looking statements in this Annual Report on Form 10-K include, among other things, statements regarding: • • • • • • • • • • • • • • • • • our plans to commercialize PYRUKYND® (mitapivat) for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States; the initiation, timing, progress and results of current and future preclinical studies and clinical trials, and our research and development programs; the potential of the isoforms of pyruvate kinase, including PKR and PKM2, as therapeutic targets; the potential benefits of our products and product candidates targeting PKR, including PYRUKYND® (mitapivat) and AG-946; our plans to develop and commercialize any product candidates for which we may receive approval, either alone or with partners; our ability to establish and maintain collaborations or to obtain additional funding, if needed; the timing or likelihood of regulatory filings and approvals, including the marketing authorization application, or MAA, for PYRUKYND® for the treatment of pyruvate kinase deficiency that we submitted to the European Medicines Agency, or EMA, in June 2021; our strategic vision. the timing, likelihood and amount of contingent consideration we may receive from Servier Pharmaceuticals LLC, or Servier, in connection with the sale of our oncology business to Servier that we consummated in March 2021; the implementation of our business model and strategic plans for our business, product candidates and technology; our commercialization, marketing and manufacturing capabilities and strategy; the rate and degree of market acceptance and clinical utility of our products; our competitive position; our intellectual property position; developments and projections relating to our competitors and our industry; the impact of the COVID-19 pandemic on our business, operations, strategy, goals and anticipated milestones; and our estimates regarding expenses, future revenue, capital requirements and needs for additional financing. We may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements, and you should not place undue reliance on our forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward- looking statements we make. We have included important factors in this Annual Report on Form 10-K, particularly in the "Summary Risk Factors" and “Risk Factors” sections, that could cause actual results or events to differ materially from the forward-looking statements that we make. Our forward- looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures or investments we may make. You should read this Annual Report on Form 10-K and the documents that we have filed as exhibits to this Annual Report on Form 10-K completely and with the understanding that our actual future results may be materially different from what we expect. We do not assume any obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. This Annual Report on Form 10-K includes statistical and other industry and market data that we obtained from industry publications and research, surveys and studies conducted by third parties. All of the market data used in this Annual Report on 1 Table of Contents Form 10-K involves a number of assumptions and limitations, and you are cautioned not to give undue weight to such data. We believe that the information from these industry publications, surveys and studies is reliable. The industry in which we operate is subject to a high degree of uncertainty and risk due to a variety of important factors, including those described in the sections titled “Summary Risk Factors” and “Risk Factors.” Summary Risk Factors Our business is subject to a number of risks that if realized could materially affect our business, financial condition, results of operations, cash flows and access to liquidity. These risks are discussed more fully in the “Risk Factors” section of this Annual Report on Form 10-K. Our principal risks include the following: • • • • • • • • • • • • If we do not successfully commercialize PYRUKYND® for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States and other products for which we receive approval, our prospects may be substantially harmed. Our ability to generate product revenue from PYRUKYND® depends heavily on our successful development and commercialization of the product. We depend heavily on the success of our clinical product candidates, including PYRUKYND® for use in indications other than PK deficiency and in other jurisdictions. Clinical trials of our product candidates may not be successful for a number of important reasons. If we or our collaborators are unable to commercialize our product candidates or experience significant delays in doing so, our business will be materially harmed. We may not be successful in our efforts to identify or discover potential product candidates or to develop additional medicines of commercial value. We may not achieve our goals included in our strategic vision, including receiving regulatory approvals for our product candidates in additional indications, expanding our clinical and research pipelines and achieving positive cash flow. If we are unable to achieve the goals in our strategic vision, such failure would likely result in significant harm to our financial position and adversely impact our stock price. The COVID-19 pandemic has and may continue to affect our ability to initiate or continue our planned, ongoing and future clinical trials, disrupt regulatory activities, disrupt our ability to maintain a commercial infrastructure for PYRUKYND® or have other adverse effects on our business and operations. PYRUKYND®, or any of our product candidates that may receive marketing approval in the future, may be less effective than previously believed or cause undesirable side effects that were not previously identified in clinical trials or may fail to achieve the degree of market acceptance by physicians, patients, healthcare payors and others in the medical community necessary for commercial success, which could compromise our ability, or that of any collaborators, to market the product. If we are unable to establish and maintain sales and marketing capabilities or enter into agreements with third parties to sell and market our products, we may not be successful in commercializing PYRUKYND® or our product candidates if and when they are approved. We face substantial competition, which may result in others discovering, developing or commercializing products before or more successfully than we do. There are a number of large pharmaceutical and biotechnology companies that currently market and sell products or are pursuing the development of products for the treatment of the disease indications for which we are developing our product or our product candidates. Our competitors may develop products that are more effective, safer, more convenient or less costly than PYRUKYND® or any product candidates that we are developing or that would render PYRUKYND® or our product candidates obsolete or non-competitive. We may face new challenges as a smaller, less diversified company following our sale of our oncology business to Servier. We are singularly focused on products and product candidates for the treatment of genetically defined diseases, or GDDs. As a result, we may be more susceptible to changing market conditions, including fluctuations and risks particular to the markets for patients with GDDs, than a more diversified company, which could adversely affect our business, financial condition and results of operations. If our existing capital is insufficient to execute our operating plan through major catalysts and to cash-flow positivity, we will need to raise capital, and if we are unable to raise capital when needed, we would be forced to delay, reduce or eliminate our product development programs or commercialization efforts. We have historically incurred operating losses. We expect to incur losses in the future and may never achieve or maintain profitability. Our net income for the year ended December 31, 2021 was $1,604.7 million and our net losses for the years ended December 31, 2020 and 2019 were $327.4 million and $411.5 million, respectively. The net income we generated in the year ended December 31, 2021 was primarily due to the sale of our oncology business to Servier in March 2021. As of December 31, 2021, we had an accumulated deficit of $238.8 million. We may depend on collaborations with third parties for the development and commercialization of our product candidates. If those collaborations are not successful, we may not be able to capitalize on the market potential of these product candidates. 2 Table of Contents • • We currently rely and expect to continue to rely on third parties for the manufacture of our product candidates for preclinical and clinical testing and for commercial supply of PYRUKYND® and any product candidate for which we obtain marketing approval. Any performance failure on the part of our existing or future third-party manufacturers could delay clinical development, marketing approval or our commercialization efforts. If we are unable to obtain and maintain patent or trade secret protection for our medicines and technology, or if the scope of the patent protection obtained is not sufficiently broad, our competitors could develop and commercialize medicines and technology similar or identical to ours, and our ability to successfully commercialize our medicines and technology may be adversely affected. If we do not, or are unable to, obtain or maintain any issued patents for any of our most advanced product candidates, it could have a material adverse effect on our competitive position, business, financial condition, results of operations, and prospects. Item 1. Business General We are a biopharmaceutical company committed to transforming patients’ lives through scientific leadership in the field of cellular metabolism and adjacent areas of biology, with the goal of creating differentiated, small molecule medicines for genetically defined diseases. We take a systems biology approach to deeply understand disease states, drive the discovery and validation of novel therapeutic targets, and define patient selection strategies, thereby increasing the probability that our experimental medicines will have the desired therapeutic effect, while cultivating connections with patient communities, healthcare professionals, partners and colleagues to discover, develop and deliver potential therapies for genetically defined diseases, or GDDs. Sale of Oncology Business to Servier Pharmaceuticals, LLC (Servier) On March 31, 2021, we completed the sale of our oncology business to Servier Pharmaceuticals LLC, or Servier. The transaction included the sale of our oncology business, including TIBSOVO®, our clinical-stage product candidates vorasidenib, AG-270 and AG-636, and our oncology research programs for a payment of approximately $1.8 billion in cash at the closing, subject to certain adjustments, and a payment of $200 million in cash, if, prior to January 1, 2027, vorasidenib is granted new drug application, or NDA, approval from the U.S. Food and Drug Administration, or FDA, with an approved label that permits vorasidenib’s use as a single agent for the adjuvant treatment of patients with Grade 2 glioma that have an isocitrate dehydrogenase 1 or 2 mutation (and, to the extent required by such approval, the vorasidenib companion diagnostic test is granted an FDA premarket approval), as well as a royalty of 5% of U.S. net sales of TIBSOVO® from the close of the transaction through loss of exclusivity, and a royalty of 15% of U.S. net sales of vorasidenib from the first commercial sale of vorasidenib through loss of exclusivity. Servier also acquired our co-commercialization rights for Bristol Myers Squibb’s IDHIFA® and the right to receive a $25.0 million potential milestone payment under our prior collaboration agreement with Celgene Corporation, or Celgene, and following the sale Servier is responsible for conducting certain clinical development activities within the IDHIFA® development program. We recorded income from royalties of approximately $6.6 million on U.S. net sales of TIBSOVO® by Servier in the gain on sale of oncology business line item within the consolidated statements of operations for the year ended December 31, 2021. Business Overview Genetically defined diseases The lead product in our genetically defined disease, or GDD, portfolio, PYRUKYND® (mitapivat), is an activator of both wild-type and a variety of mutant pyruvate kinase, or PK, enzymes, for the potential treatment of hemolytic anemias. In February 2022, the FDA approved PYRUKYND® for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States and we expect to commercially launch PYRUKYND® in the first quarter of 2022. In June 2021, we submitted a marketing authorization application, or MAA, to the EMA for PYRUKYND® for the treatment of adults with PK deficiency in the European Union. The MAA has passed validation, and the regulatory review process is ongoing. In addition, we are currently evaluating PYRUKYND® for the treatment of α- and β-thalassemia and sickle cell disease, or SCD, in the ongoing clinical trials described below and we intend to evaluate PYRUKYND® in pediatric patients with PK deficiency in the planned clinical trials described below. We are also developing AG-946, a novel, next-generation PK activator, for the potential treatment of hemolytic anemias and other indications, including SCD and anemia associated with low- to intermediate-risk myelodysplastic syndrome, or L-IR MDS. In addition to the aforementioned development programs, we foster a productive research engine and are seeking to advance multiple novel, investigational therapies in clinical and preclinical development in our focus area of GDDs, based on our scientific leadership in the field of cellular metabolism and adjacent areas of biology. 3 Table of Contents With nearly 15 years of focused study in cellular metabolism, we have a deep understanding of this biology, which is involved in the healthy functioning of nearly every system in the body. Building on this expertise, our focus on GDDs has enabled expansion of our research and promising biological insights based on highly translatable work from murine and cell-based models recapitulating human disease. Our laboratory capabilities are specialized to enable complex GDD studies. Our approach to drug discovery involves collaboration across all parts of our research, development and commercial teams, and favors targets that may impact an array of diseases or mutations, yielding a potential “pipeline within a mechanism”. We leverage these capabilities to identify under-researched targets, validate these targets using genetic and chemical approaches, and advance them rapidly into and through drug discovery. We believe that we have established state-of-the-art capabilities to study and drug metabolic targets including our ability to measure the activities of numerous metabolites in cells or tissues in a high throughput fashion and measure metabolic fluxes. This refers to the analysis of how metabolites, which are intermediates or small molecule products of metabolism, accumulate or diminish as they are created or chemically altered by multiple networks of metabolic enzymes. Through our historic efforts to drug metabolic enzymes we have established strong capabilities in the enzymology and structural biology of metabolic enzymes, facilitating our drug discovery efforts. We focus on the identification, validation, and drugging of targets with compelling patient selection biomarkers and robust pharmacodynamic readouts, thus increasing the potential for establishing proof of concept early in clinical development, along with the potential for accelerated approval. Our Strategy and Long-term Goals As part of our long-term strategy, we have developed and articulated a strategic vision that delineates our expected evolution in light of our singular focus on accelerating and expanding our GDD business. We aim to build a sustainable, multi-product company, based on our expertise in cellular metabolism and adjacent biology, that creates differentiated, small molecule medicines for patients. Our five-year vision includes (i) obtaining regulatory approvals for PYRUKYND® in PK deficiency, thalassemia and SCD, (ii) advancing at least five internally discovered molecules in clinical development spanning at least ten indications, (iii) fostering a robust research pipeline enabling us to submit investigational new drug, or IND, applications every 12-24 months, and (iv) achieving cash-flow positivity. Our Core Values Our company’s values cultivate an environment that promotes collaboration, contribution, engagement and high regard for others’ points of view. This foundation helps our people push the boundaries of our science and create transformative medicines, which we believe will provide long-term benefits for all our stakeholders. Our connections – with each other and with external parties – fuel the development of new therapies for the people who need them. Our core values include: • • • • • Aim High: We set the bar high for ourselves, and we keep working to raise it. At our core, we’re guided by a deep respect for the science and a commitment always to act with the utmost integrity. Come Together: We grow supportive relationships with patients and caregivers. We build trusting connections with collaborators. Together, we make a bigger impact than we ever could alone. Embrace Differences: Because opportunities and insights come from anywhere and anyone, we honor all voices and encourage honest dialogue. We learn equally from success and failure, bringing an open mind and a flexible approach to everything we do. Bring Your Whole Self: We know we make the biggest impact when each of us can contribute and lead in our own way. Blaze New Trails: We ask the tough questions that can lead to groundbreaking scientific advances. We nurture a creative mindset and resourceful approach that spark life-changing innovations for patients. Cellular Metabolism Cellular metabolism refers to the set of life-sustaining chemical transformations within the cells of living organisms. The conversion of nutrients into energy via enzyme-catalyzed reactions allows organisms to grow and reproduce, maintain their structures, and respond to their environments. Additionally, metabolites serve as key regulators of diverse aspects of cellular biology, and pharmacologic targeting of metabolism can therefore have disease-modifying effects in a wide variety of pathologies. The chemical reactions of metabolism are organized into metabolic pathways, in which one chemical is transformed through a series of steps into another chemical, by a sequence of enzymes. Enzymes catalyze quick and efficient reactions, serve as key regulators of metabolic pathways, and respond to changes in the cell’s environment or signals from other cells. We believe our deep understanding of metabolic pathways within normal cells enables us to identify altered metabolic pathways within abnormal cells. 4 Table of Contents Genetically defined diseases GDDs range from a broad group of more than 600 rare diseases caused by mutations of single genes to conditions resulting from alterations in one or many genes (polygenic diseases) that affect up to millions of patients worldwide. In these disorders, the defect of single or multiple genes leads to a deficient expression or function in one or several gene products which collectively manifest in organ dysfunction. As these conditions are by nature congenital and frequently hereditary, they are often detected either by genetic testing or phenotypic diagnosis in newborns or in early childhood. A typical course of many such diseases is inexorable deterioration until death or significant irreversible life-long disability and/or suffering. Many of these diseases carry severe or life-threatening features. Within this disease grouping, a disorder is considered orphan if it affects fewer than 200,000 people in the United States, or fewer than five per 10,000 people in France, Germany, Italy, Spain, United Kingdom, or the EU5. Many GDDs are likely to be under-diagnosed given the lack of available therapies or diagnostics, the rarity of the condition, or limited understanding of how the disease genetics relate to disease phenotype. Through the study of GDDs, and other conditions, it has been shown that small molecule therapies able to specifically correct genetic deficiencies and their associated organ dysfunction may have application in conditions that arise independent of patient genetics but for which identical organ dysfunction occurs. For example, a treatment for a hereditary hemolytic anemia may find direct application in the treatment of a secondarily acquired hemolytic anemia. Current treatment options for these disorders are generally limited. Severe and sustained diet modification or nutrient supplementation can be beneficial in certain GDDs. Several of these disorders, from a group known as lysosomal storage diseases, have been treated successfully with enzyme replacement therapy, or ERT, the therapeutic administration of a functional version of the defective enzyme. Examples of ERTs for lysosomal storage disorders include Fabrazyme® for Fabry disease, Myozome® for Pompe disease, Cerezyme® for Gaucher disease, and Elaprase® for Hunter syndrome. In addition, treatment of polygenic conditions such as achondroplasia by Vosoritide® and the monogenic condition, spinal muscular atrophy by gene therapy with Zolgensma® represent novel technologic approaches to addressing GDDs. Most mutations driving GDDs are intracellular and not amenable to corrective treatment with enzyme replacement therapies. Novel technologic approaches such as gene therapy are also being tested in a minority of conditions and is a technology with limited application based on cost, complexity and patient selection factors. Despite the promising progress made for patients with a small group of these diseases, the majority of patients with GDDs have few therapeutic options, and the standard of care for many such conditions is palliative, meaning treatment of symptoms with no effect on underlying disease mechanisms. Our goal is to develop mechanistically specific, small molecule approaches with the potential to have disease modifying and long-term rather than palliative effects. We are taking a novel small molecule approach to correct the defects within diseased cells with a goal of developing transformative medicines for patients. We focus on GDDs that share the following common set of features: • Genetic definition of single or multiple gene sets linked to a consistent and recognizable disease phenotype; • • • severe clinical presentation coupled with significant unmet medical need and evidence that disease damage while progressive is potentially reversible; sufficient patients to allow facile recruitment and statistical powering of prospective clinical trials; and a rigorous validation of the target, based upon a detailed mutational, structural, cell biological and biochemical analysis, to determine if a small molecule approach to correcting or significantly modifying the disease is both safe and feasible in newborn to elderly patients. Our Development Programs We believe that leveraging our core capabilities in cellular metabolism combined with our singular focus on GDDs has significantly enhanced our ability to build a rich and sustainable research and development engine, which has permitted us to discover new therapeutic approaches and multiple proprietary first-in-class orally available small molecules. 5 Table of Contents The following summarizes our approved product and most advanced clinical product candidates as of February 17, 2022, each of which is described in further detail below. PK Activator Program PK is the enzyme involved in the second to last reaction in glycolysis — the conversion of glucose into lactic acid. This enzyme has several tissue-specific isoforms (PKR, PKL, PKM1 and PKM2). Pyruvate kinase-R, or PKR, is the isoform of PK that is present in red blood cells, or RBCs. Mutations in PKR cause defects in RBC glycolysis and lead to a hematological GDD known as PK deficiency. Glycolysis is the only pathway available for RBCs to maintain the production of adenosine triphosphate, or ATP, which is a form of chemical energy within cells. Accordingly, we believe that activation of mutant forms of PKR can restore glycolytic pathway activity and increase RBC health in patients with PK deficiency, and activation of wild-type (non-mutated) PKR can serve as an effective compensatory mechanism in hemolytic anemias such as thalassemia and SCD. PK Deficiency PK deficiency is a rare genetic disorder and disease understanding is still evolving. We estimate that the prevalence of PK deficiency is between approximately 3,000 and 8,000 individuals in the United States and the EU5 and we believe that the 6 Table of Contents disease is likely under-diagnosed. PK deficiency leads to a shortened life span for RBCs and is the most common form of non-spherocytic hemolytic anemia in humans. There is currently no known unique ethnic or geographic representation of the disease. The disease manifests by mild to severe forms of anemia caused by the excessive premature destruction of RBCs. The chronic hemolysis can lead to long-term complications and comorbidities, regardless of the degree of the anemia, often resulting in jaundice and lifelong conditions associated with chronic anemia and secondary complications. The precise mechanism for the hemolysis is not well understood but is thought to result from membrane instability secondary to the metabolic defect caused by the low level of PKR enzyme. The hemolysis is “extra-vascular” in that the RBCs are destroyed in small capillaries or organs and do not spontaneously break open in the circulation. PK deficiency is an autosomal recessive disease whereby all patients inherit two mutations, one from each parent. Children with the disease produce PKR enzyme that has only a fraction of the normal level of activity (generally <50%). Current management strategies for PK deficiency, including blood transfusion and splenectomy, are associated with both short- and long-term risks. More than 350 different mutations have been identified to date. As a result, there are many different possible mutant combinations and no one clear mutational profile. The mutations observed in PK deficiency patients are classified in two main categories. A missense mutation causes a single amino acid change in the protein, generally resulting in some functional protein in the RBCs. A non-missense mutation is any mutation other than a missense mutation, generally resulting in little functional protein in the RBCs. It is estimated that 58 percent of patients with PK deficiency have two missense mutations, 27 percent have one missense and one non-missense mutation, and 15 percent have two non-missense mutations. Boston Children’s Hospital, in collaboration with us, is conducting a Natural History Study to better understand the symptoms and complications of PK deficiency, identify patients and treatment centers, and capture other clinical data, including genetic information. We initiated a global registry, called PEAK, for up to 500 adult and pediatric patients with PK deficiency in the first quarter of 2018 to increase understanding of the long-term disease burden of this chronic hemolytic anemia. Thalassemia Thalassemia is a hereditary blood disorder in which mutations in the α- or β-globin chains of hemoglobin lead to globin chain precipitates and aggregates that disturb the RBC membrane and induce oxidative stress, leading to decreased survival of RBC precursors, ineffective erythropoiesis, hemolysis of mature RBCs, and anemia. We estimate that the prevalence of thalassemia is between 18,000 and 23,000 individuals in the United States and EU5. In addition to anemia, patients with thalassemia can experience enlarged spleen, bone deformities, iron overload, fatigue, and infection. Current treatment strategies for thalassemia include blood transfusion and bone marrow transplantation, as well as recently improved therapies such as Reblozyl® for the treatment of thalassemia. We believe that the activation of wild-type PKR may increase ATP production and improve red cell fitness and survival of thalassemic RBCs, by increasing the clearance globin chain aggregates through ATP-dependent proteolytic mechanisms. Sickle Cell Disease SCD is an inherited blood disorder caused by mutations in hemoglobin that enable the hemoglobin to form long polymeric chains under certain conditions such as low oxygenation, or deoxygenation. Polymerization of this irregular hemoglobin results in RBCs taking on a sickle shape, causing them to aggregate and obstruct small blood vessels, restricting blood flow to organs resulting in pain, cell death and organ damage. We estimate that the prevalence of SCD is between 120,000 and 135,000 individuals in the United States and EU5. RBC deoxygenation is modulated by several factors, including the levels of 2,3-diphosphoglycerate, or 2,3-DPG, which is found to be elevated in sickle cell patient RBCs. Current treatment strategies focus on managing and preventing acute RBC sickling, and include hydroxyurea, L-glutamine and blood transfusions, as well as recently approved therapies such as Adakveo® and Oxbryta®. We believe that activation of wild-type PKR in patients with SCD may reduce hemoglobin polymerization and the sickling process by at least two mechanisms. Reducing the level of 2,3-DPG in RBCs would increase the oxygenation state of hemoglobin to reduce sickling, while increasing the levels of ATP may improve RBC hydration status which would also inhibit the sickling process. Low- to Intermediate-Risk MDS MDS is a heterogeneous group of rare hematological malignancies characterized by dysfunctional hematopoiesis (or formation of blood cells) , progressive cytopenia (or lower-than-normal number of blood cells) and an increased risk of progression to acute myeloid leukemia. The most common type of MDS is L-IR MDS, but many existing therapies and therapies under development focus on high risk MDS. Among patients with L-IR MDS, which is less likely to progress to acute myeloid leukemia, the primary concern is symptomatic anemia. We estimate that the prevalence of L-IR MDS in the United States is approximately 50,000 individuals. We believe that activation of wild-type PK in L-IR MDS patients may improve deficient PK activity in MDS erythrocytes. Current treatment options for L-IR MDS often require in-office visits and transfusions, and erythropoiesis stimulating agents and Reblozyl® (luspatercept-aamt) are the only approved therapies to treat anemia in a subset of patients. Despite approved therapies in subsets of patients, L-IR MDS associated anemia remains a disease with high unmet medical need. 7 Table of Contents PYRUKYND® (mitapivat): First-in-Class PK Activator We are developing PYRUKYND® for the treatment of PK deficiency and other hemolytic anemias such as thalassemia and SCD. PYRUKYND® is an orally available small molecule and a potent activator of the wild-type and mutated PKR enzymes. To date, we have demonstrated in clinical trials that treatment with PYRUKYND® can lead to durable sustained increases in hemoglobin in patients with amenable mutations in the PKR gene and a statistically significant and clinically meaningful reduction in transfusion burden in regularly transfused patients with PK deficiency, and we have observed in clinical trials of PYRUKYND® durable improvements in hemoglobin concentration and markers of hemolysis and ineffective erythropoeiesis in both α- and β- halassemia patients and reductions in 2,3-DPG and increases in ATP in SCD patients. In February 2022, the FDA approved PYRUKYND® for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States. In June 2021, we submitted a marketing authorization application, or MAA, to the EMA for the treatment of adults with PK deficiency the European Union. The MAA has passed validation, and the regulatory review process is ongoing. We have worldwide development and commercial rights to PYRUKYND® and expect to fund the future development and commercialization costs related to this program. PYRUKYND® has been granted orphan drug designation for the treatment of PK deficiency by the FDA and the EMA. Additionally, PYRUKYND® has received orphan drug designation from the FDA for the treatment of thalassemia and sickle cell disease. We have built our US commercial infrastructure to support the commercial launch of PYRUKYND in the US and continue to evaluate all options for the commercialization and continued development of PYRUKYND® outside of the United States in order to maximize the benefit to patients and value to our shareholders, including through exploring potential partnership opportunities. We are evaluating PYRUKYND® in the following clinical trials: • • • • • ENERGIZE, a phase 3, double-blind, randomized, placebo-controlled multicenter study evaluating the efficacy and safety of PYRUKYND® as a potential treatment for adults with non-transfusion-dependent α- or β-thalassemia, defined as ≤5 RBC units during the 24-week period before randomization and no RBC transfusions ≤8 weeks before providing informed consent or during the screening period. The primary endpoint of the trial is percentage of patients with hemoglobin response, defined as a ≥1.0 g/dL increase in average hemoglobin concentration from Week 12 through Week 24 compared with baseline. Secondary endpoints include markers of hemolysis and ineffective erythropoiesis, as well as patient- reported outcome measures. This trial is enrolling patients, and we expect to enroll a meaningful portion of the patients by the end of 2022. ENERGIZE-T, a phase 3, double-blind, randomized, placebo-controlled multicenter study evaluating the efficacy and safety of PYRUKYND® as a potential treatment for adults with transfusion-dependent α- or β-thalassemia, defined as 6 to 20 RBC units transfused and ≤6-week transfusion-free period during the 24-week period before randomization. The primary endpoint of the trial is percentage of patients with transfusion reduction response, defined as a ≥50% reduction in transfused RBC units with a reduction of ≥2 units of transfused RBCs in any consecutive 12-week period through Week 48 compared with baseline. Secondary endpoints include additional transfusion reduction measures and percentage of participants with transfusion-independence. This trial is enrolling patients, and we expect to enroll a meaningful portion of the patients by the end of 2022. RISE UP, a phase 2/3 study evaluating the efficacy and safety of PYRUKYND® in SCD patients who are 16 years of age or older, have had between two and 10 sickle cell pain crises in the past 12 months, and have hemoglobin within the range of 5.5 to 10.5 g/dL during screening. The phase 2 portion of the trial, which has initiated, includes a 12-week randomized, placebo-controlled period in which participants will be randomized in a 1:1:1 ratio to receive 50 mg PYRUKYND® twice daily, 100 mg PYRUKYND® twice daily or matched placebo. The primary endpoints are hemoglobin response, defined as ≥1 g/dL increase in average hemoglobin concentration from Week 10 through Week 12 compared to baseline, and safety. These data will be used to establish a clear dosing paradigm for the phase 3 portion. The phase 3 portion includes a 52-week randomized, placebo-controlled period in which participants will be randomized in a 2:1 ratio to receive the recommended PYRUKYND® dose level or placebo. The primary endpoints are hemoglobin response, defined as ≥1 g/dL increase in average hemoglobin from baseline to Week 52, and annualized rate of sickle cell pain crises. Participants who complete either the phase 2 or phase 3 portion will have the option to move into a 216-week open-label extension period to continue to receive PYRUKYND®. The phase 2 portion of this trial is enrolling patients, and we expect to complete enrollment in the phase 2 portion of the trial by the end of 2022. An extension study evaluating the long-term safety, tolerability and efficacy of treatment with PYRUKYND® in patients from ACTIVATE and ACTIVATE-T, our completed pivotal trials of PYRUKYND® in not regularly transfused and regularly transfused patients with PK deficiency. An extension study evaluating the long-term safety, tolerability and efficacy of treatment with PYRUKYND® in patients from DRIVE PK, our completed global phase 2, first-in-patient, open-label safety and efficacy clinical trial of PYRUKYND® in adult, not regularly transfused patients with PK deficiency. 8 Table of Contents • • • An extension study evaluating the safety, tolerability and efficacy of treatment with PYRUKYND® in patients from our completed phase 2, open- label safety and efficacy clinical trial of PYRUKYND® in adults with not-transfusion-dependent α- and β-thalassemia. In collaboration with the National Institutes of Health, or NIH, we are evaluating PYRUKYND® in a phase 1 trial in patients with SCD pursuant to a cooperative research and development agreement. The core trial period has completed. The long-term extension study is ongoing. In June 2020, clinical proof of concept was established based on a preliminary analysis of the data from this trial. In collaboration with UMC Utrecht, or UMC, we are evaluating PYRUKYND® in patients with SCD pursuant to an investigator sponsored trial agreement. The trial is ongoing and enrolling patients, although UMC experienced disruptions related to the COVID-19 pandemic. We expect to initiate two phase 3 trials of PYRUKYND®, ACTIVATE-kids and ACTIVATE-kidsT, in not regularly transfused and regularly transfused pediatric patients with PK deficiency in mid-2022. AG-946: Novel, Next-Generation PK Activator We are developing AG-946, a novel, next-generation PKR activator, for the potential treatment of hemolytic anemias. We are evaluating AG-946, in a phase 1 trial of AG-946 in healthy volunteers and in patients with SCD. The trial is currently enrolling healthy volunteers, and we expect to initiate the SCD patient cohort of this trial in the first half of 2022. We expect to initiate a phase 2a study of AG-946 in adults with L-IR MDS by year-end 2022. Intellectual Property Our commercial success depends in part on our ability to obtain and maintain proprietary or intellectual property protection for our product candidates and our core technologies, including novel biomarker and diagnostic discoveries, and other know-how, to operate without infringing on the proprietary rights of others and to prevent others from infringing our proprietary or intellectual property rights. Our policy is to seek to protect our proprietary and intellectual property position by, among other methods, filing U.S. and foreign patent applications related to our proprietary technology, inventions and improvements that are important to the development and implementation of our business. We also rely on confidential information, know-how and continuing technological innovation to develop and maintain our proprietary and intellectual property position. We may also choose to rely on trade secrets to protect certain aspects of our business that are not suitable or appropriate for patent protection. We file, or may collaborate with third parties to file, patent applications directed to our key products and product candidates, including PYRUKYND® and AG-946, in addition to related compounds and potential back-up compounds, in an effort to establish intellectual property positions to protect these new chemical entities as well as methods of using these compounds in the treatment of diseases, formulations, solid state forms, and manufacturing processes. We may also seek patent protection for certain biomarkers that may be useful in identifying the appropriate patient population for therapies with our product candidates. PK activator program The patent portfolio for our PK activator program contains issued patents and pending patent applications directed to compositions of matter for PYRUKYND®, as well as to related compounds, various solid state forms of PYRUKYND®, compositions of matter for second generation PKR activators, such as AG-946, as well as methods of use for these novel compounds. As of February 1, 2022, we owned approximately 9 issued U.S. patents and 176 issued foreign patents, and have pending patent applications in the US and in various foreign jurisdictions. The patents that have issued or will issue for our PK activator program will have a statutory expiration date of at least 2030 to 2040. Patent term adjustments or patent term extensions could result in later expiration dates. In some cases, the term of a US patent can be shortened by the filing of a terminal disclaimer which operates to reduce the term of a patent to that of an earlier expiring patent. The foreign issued patents and pending patent applications are in a number of jurisdictions, including Argentina, Australia, Austria, Belgium, Brazil, Canada, China, the Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Japan, Lebanon, Lithuania, Mexico, the Netherlands, Norway, Poland, Portugal, Romania, Russia, Saudi Arabia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, and the United Kingdom. Prosecution is a lengthy process, during which the scope of the claims initially submitted for examination by the U.S. Patent and Trademark Office, or USPTO, can be significantly narrowed by the time they issue, if they issue at all. We expect this could be the case with respect to some of our pending patent applications referred to above. Patent Term The term of individual patents depends upon the legal term for patents in the countries in which they are obtained. In most countries, including the United States, the patent term is 20 years from the earliest filing date of a non-provisional patent application, although term extensions may be available. In the United States, a patent’s term may be lengthened by patent term 9 Table of Contents adjustment, which compensates a patentee for administrative delays by the USPTO in examining and granting a patent, or may be shortened if a patent is terminally disclaimed over an earlier filed patent. The term of a patent that covers a drug or biological product may also be eligible for patent term extension when FDA approval is granted, provided statutory and regulatory requirements are met. The extension of the term of foreign patents varies, in accordance with local law. Although certain of the patents granted by the regulatory authorities of the EU may expire at specific dates, the terms of patents granted in certain European countries may extend beyond such EU patent expiration date if we were to obtain a supplementary protection certificate. In addition, because of the extensive time required for clinical development and regulatory review of a product candidate we may develop, it is possible that, before any of our product candidates can be commercialized, any related patent may expire or remain in force for only a short period following commercialization, thereby reducing any advantage of any such patent. In the future, if and when our product candidates receive approval by the FDA or foreign regulatory authorities, we expect to apply for patent term extensions on issued patents covering those products, depending upon the length of the clinical trials for each medicine and other factors. There can be no assurance that any of our pending patent applications will issue or that we will benefit from any patent term extension or favorable adjustment to the term of any of our patents. Additional Considerations As with other biotechnology and pharmaceutical companies, our ability to maintain and solidify our proprietary and intellectual property position for our product, product candidates and technologies will depend on our success in obtaining effective patent claims and enforcing those claims if granted. However, patent applications that we may file or license from third parties may not result in the issuance of patents. We also cannot predict the breadth of claims that may be allowed or enforced in our patents. Any issued patents that we may receive in the future may be challenged, invalidated or circumvented. For example, a third party can challenge the patentability of one or more of the claims of an issued patent in a post-grant proceeding before the USPTO or a foreign patent office such as the European Patent Office, which can result in the loss of certain claims or the loss of an entire patent. In addition, it is possible that a third party has filed a patent application in the United States, or abroad, that claims the same technology or chemical structures that are claimed in our own patent applications or patents. In such cases, we may have to participate in legal proceedings or enter into a licensing arrangement, which could result in substantial costs to us, even if the eventual outcome is favorable to us. In addition to patent protection, we also rely upon unpatented confidential information, including confidential technical information, know-how and continuing technological innovation to develop and maintain our competitive position. We seek to protect our proprietary information, in part, by using confidentiality agreements with our collaborators, third- party service providers, scientific advisors, employees and consultants, and by invention assignment agreements with our employees. We also have agreements requiring assignment of inventions with selected consultants, scientific advisors and collaborators. The confidentiality agreements are designed to protect our proprietary information and, in the case of agreements or clauses requiring invention assignment, to grant us ownership of technologies that are developed through a relationship with a third party. With respect to our proprietary cellular metabolism technology platform, we consider confidential information and know-how related to our cellular metabolism technology platform to be our primary intellectual property in this space. Confidential information and know-how can be difficult to protect. In particular, we anticipate that with respect to this technology platform, at least some of the technical information and know-how will, over time, become known within the industry through independent development, the publication of journal articles describing the methodology, and the movement of personnel skilled in the art from academic to industry scientific positions. Competition The pharmaceutical and biotechnology industries are characterized by rapidly advancing technologies, intense competition and a strong emphasis on proprietary products. While we believe that our technology, development experience and scientific knowledge provide us with competitive advantages, we face potential competition from many different sources, including major pharmaceutical, specialty pharmaceutical and biotechnology companies, academic institutions and governmental agencies and public and private research institutions. PYRUKYND® and any product candidates that we successfully develop and commercialize will compete with existing therapies and new therapies that may become available in the future. We compete in the areas of pharmaceutical, biotechnology and other related markets that address GDDs. There are other companies working to develop therapies in the field of GDDs, including divisions of large pharmaceutical companies and biotechnology companies of various sizes. Our competitors include: Bristol-Myers Squibb Company, or BMS; BioMarin Pharmaceutical, Inc., or BioMarin; bluebird bio, Inc., or bluebird; Forma; Merck & Co., Inc., or Merck; Novartis International AG, or Novartis; Pfizer, Inc., or Pfizer; Global Blood Therapeutics, or Global Blood; IMARA Inc., or IMARA; Rocket Pharma LTD, or Rocket Pharma; Vertex Pharmaceuticals Incorporated, or Vertex, Emmaus Life Sciences, or Emmaus, Fibrogen, Inc., or Fibrogen, and Geron Corporation, or Geron. 10 Table of Contents The most common methods for treating GDD patients with PKU and hemolytic anemias are dietary restriction, dietary supplementation or replacement, treatment of symptoms and complications, gene therapy, blood transfusions, organ transplant and enzyme replacement therapies. There are a number of marketed therapies available for treating patients with GDDs. For example, recently approved treatments for thalassemia, SCD, low-risk MDS and phenylketonuria include Reblozyl® from Merck (formerly Acceleron); Revlimid® from BMS; Lentiglobin® from bluebird; Adakveo® from Novartis; Oxbryta® from Global Blood; Kuvan® and Palynziq® from BioMarin and Endari® from Emmaus. While our product and product candidates may compete with existing medicines and other therapies, to the extent they are ultimately used in combination with or as an adjunct to these therapies, our product or product candidates may not be competitive with them. In addition to currently marketed therapies, there are also a number of products that are either small molecules, enzyme replacement therapies or gene therapies in various stages of clinical development to treat GDDs. For example, Rocket Pharma is conducting a clinical trial of a gene therapy targeting PK deficiency, Forma is developing a PKR activator for the treatment of hemolytic anemias, including PK deficiency, thalassemia, SCD and MDS, Fibrogen is developing Roxadustat for the treatment of anemia in MDS patients; Geron is developing imetelstat for the treatment of low-risk MDS, and Vertex is developing a gene therapy targeting SCD. These products in development may provide efficacy, safety, convenience and other benefits that are not provided by currently marketed therapies. As a result, they may provide competition for any of our product or product candidates for which we obtain market approval. Many of our competitors may have significantly greater financial resources and expertise in research and development, manufacturing, preclinical testing, conducting clinical trials, obtaining regulatory approvals and marketing approved medicines than we do. Mergers and acquisitions in the pharmaceutical, biotechnology and diagnostic industries may result in even more resources being concentrated among a smaller number of our competitors. These competitors also compete with us in recruiting and retaining qualified scientific and management personnel, and establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs. Smaller or early stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. The key competitive factors affecting the success of PYRUKYND® and any of our product candidates that we develop, if approved, are likely to be their efficacy, safety, convenience, price, the effectiveness of companion diagnostics in guiding the use of related therapeutics where appropriate, the level of generic competition and the availability of reimbursement from government and other third-party payors. Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize medicines that are safer, more effective, have fewer or less severe side effects, are more convenient or are less expensive than any medicines that we may develop. Our competitors also may obtain FDA or other regulatory approval for their medicines more rapidly than we may obtain approval for ours, which could result in our competitors establishing a strong market position before we are able to enter the market. In addition, our ability to compete may be affected in many cases by insurers or other third- party payors seeking to encourage the use of generic or other branded medicines. There are many generic medicines currently on the market for the indications that we are pursuing, and additional medicines are expected to become available on a generic basis over the coming years. We expect that PYRKYND® and any of our product candidates that may receive marketing approval, we expect that they will be priced at a significant premium over competitive generic medicines. Manufacturing We do not own or operate, and currently have no plans to establish, any manufacturing facilities. We currently rely, and expect to continue to rely, on third parties for the manufacture of our product candidates for preclinical and clinical testing, as well as for commercial manufacture of PYRUKYND® and any product candidate for which we receive marketing approval. To date, we have obtained materials for PYRUKYND® and AG-946 for our ongoing and planned clinical testing from third-party manufacturers. Although we have long-term supply arrangements in place for the commercial supply of PYRUKYND®, we primarily obtain our supplies from these manufacturers on a purchase order basis. Due to the volatility of the raw material supply network globally, we have gained regulatory approval for redundant supply of raw materials, and have an ongoing program to ensure this risk mitigation remains effective. We do not currently have arrangements in place for redundant supply for drug product, but maintain a broad safety stock program. As we have done for PYRUKYND®, for all of our other product candidates we intend to identify and qualify additional manufacturers to provide the active pharmaceutical ingredient and fill-and-finish services prior to submission of an NDA to the FDA. PYRUKYND® and AG-946 are organic compounds of low molecular weight, generally called small molecules. They can be manufactured in reliable and reproducible synthetic processes from readily available starting materials. The chemistry is amenable to scale-up and does not require unusual equipment in the manufacturing process. We expect to continue to develop drug candidates that can be produced cost-effectively at contract manufacturing facilities. 11 Table of Contents Government Regulation and Product Approvals Government authorities in the United States, at the federal, state and local level, and in other countries and jurisdictions, including the EU, extensively regulate, among other things, the research, development, testing, manufacture, pricing, quality control, approval, packaging, storage, recordkeeping, labeling, advertising, promotion, distribution, marketing, post-approval monitoring and reporting, and import and export of biopharmaceutical products. The processes for obtaining marketing approvals in the United States and in foreign countries and jurisdictions, along with compliance with applicable statutes and regulations and other regulatory authorities, require the expenditure of substantial time and financial resources. Approval and Regulation of Drugs in the United States In the United States, drug products are regulated under the Federal Food, Drug and Cosmetic Act, or FDCA, and applicable implementing regulations and guidance. The failure of an applicant to comply with the applicable regulatory requirements at any time during the product development process, including non-clinical testing, clinical testing, the approval process or post-approval process, may result in delays to the conduct of a study, regulatory review and approval and/or administrative or judicial sanctions. These sanctions may include, but are not limited to, the FDA’s refusal to allow an applicant to proceed with clinical trials, refusal to approve pending applications, license suspension or revocation, withdrawal of an approval, warning letters, adverse publicity, product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines and civil or criminal investigations and penalties brought by the FDA or Department of Justice, or DOJ, or other government entities, including state agencies. An applicant seeking approval to market and distribute a new drug in the United States generally must satisfactorily complete each of the following steps before the product candidate will be approved by the FDA: • • • • • • • • • • preclinical testing including laboratory tests, animal studies and formulation studies which must be performed in accordance with the FDA’s good laboratory practice, or GLP, regulations and standards; submission to the FDA of an IND for human clinical testing, which must become effective before human clinical trials may begin; approval by an independent institutional review board, or IRB, representing each clinical site before each clinical trial may be initiated; performance of adequate and well-controlled human clinical trials to establish the safety and efficacy of the product candidate for each proposed indication, in accordance with current good clinical practices, or GCP; preparation and submission to the FDA of a NDA for a drug product which includes not only the results of the clinical trials, but also, detailed information on the chemistry, manufacture and quality controls for the product candidate and proposed labeling for one or more proposed indication(s); review of the product candidate by an FDA advisory committee, where appropriate or if applicable; satisfactory completion of FDA inspection of the manufacturing facility or facilities, including those of third parties, at which the product candidate or components thereof are manufactured to assess compliance with current good manufacturing practices, or cGMP, requirements and to assure that the facilities, methods and controls are adequate to preserve the product’s identity, strength, quality and purity; satisfactory completion of any FDA audits of the non-clinical and clinical trial sites to assure compliance with GCP and the integrity of clinical data in support of the NDA; payment of user fees and securing FDA approval of the NDA to allow marketing of the new drug product; and compliance with any post-approval requirements, including the potential requirement to implement risk evaluation and mitigation strategies, or REMS, and the potential requirement to conduct any post-approval studies required by the FDA. Preclinical Studies Before an applicant begins testing a product candidate with potential therapeutic value in humans, the product candidate enters the preclinical testing stage. Preclinical tests include laboratory evaluations of product chemistry, formulation and stability, as well as other studies to evaluate, among other things, the toxicity of the product candidate. The conduct of the preclinical tests and formulation of the compounds for testing must comply with federal regulations and requirements, including GLP regulations and standards, and the United States Department of Agriculture’s Animal Welfare Act, if applicable. The results of the preclinical tests, together with manufacturing information and analytical data, are submitted to the FDA as part of an IND. Some long-term preclinical testing, such as animal tests of reproductive adverse events and carcinogenicity, and long-term toxicity studies, may continue after the IND is submitted. 12 Table of Contents The IND and IRB Processes An IND is an exemption from the FDCA that allows an unapproved product candidate to be shipped in interstate commerce for use in an investigational clinical trial and a request for FDA authorization to administer such investigational product to humans. Such authorization must be secured prior to interstate shipment and administration of any product candidate that is not the subject of an approved NDA. In support of a request for an IND, applicants must submit a protocol for each clinical trial and any subsequent protocol amendments must be submitted to the FDA as part of the IND. The FDA requires a 30-day waiting period after the filing of each IND before clinical trials may begin. This waiting period is designed to allow the FDA to review the IND to determine whether human research subjects will be exposed to unreasonable health risks. At any time during this 30-day period, or thereafter, the FDA may raise concerns or questions about the conduct of the trials as outlined in the IND and impose a clinical or partial clinical hold. In this case, the IND sponsor and the FDA must resolve any outstanding concerns before clinical trials can begin. Following commencement of a clinical trial under an IND, the FDA may also place a clinical or partial clinical hold on that trial. A clinical hold is an order issued by the FDA to the sponsor to delay a proposed clinical investigation or to suspend an ongoing investigation. A partial clinical hold is a delay or suspension of only part of the clinical work requested under the IND. For example, a specific protocol or part of a protocol is not allowed to proceed, while other protocols may do so. No more than 30 days after imposition of a clinical hold or partial clinical hold, the FDA will provide the sponsor a written explanation of the basis for the hold. Following issuance of a clinical or partial clinical hold, an investigation may only resume after the FDA has notified the sponsor that the investigation may proceed. The FDA will base that determination on information provided by the sponsor correcting the deficiencies previously cited or otherwise satisfying the FDA that the investigation can proceed. A sponsor may choose, but is not required, to conduct a foreign clinical study under an IND. When a foreign clinical study is conducted under an IND, all FDA IND requirements must be met unless waived. When a foreign clinical study is not conducted under an IND, the sponsor must ensure that the study complies with certain regulatory requirements, including GCP requirements, of the FDA in order to use the study as support for an IND or application for marketing approval. The GCP requirements encompass both ethical and data integrity standards for clinical studies. The FDA’s regulations are intended to help ensure the protection of human subjects enrolled in non-IND foreign clinical studies, as well as the quality and integrity of the resulting data. They further help ensure that non-IND foreign studies are conducted in a manner comparable to that required for IND studies. In addition to the foregoing IND requirements, an IRB representing each institution participating in the clinical trial must review and approve the plan for any clinical trial before it commences at that institution, and the IRB must conduct continuing review and reapprove the study at least annually. The IRB must review and approve, among other things, the study protocol and informed consent information to be provided to study subjects. An IRB must operate in compliance with FDA regulations. An IRB can suspend or terminate approval of a clinical trial at its institution, or an institution it represents, if the clinical trial is not being conducted in accordance with the IRB’s requirements or if the product candidate has been associated with unexpected serious harm to patients. Additionally, some trials are overseen by an independent group of qualified experts organized by the trial sponsor, known as a data safety monitoring board or committee. This group provides authorization as to whether or not a trial may move forward at designated check points based on access that only the group maintains to available data from the study. Suspension or termination of development during any phase of clinical trials can occur if it is determined that the participants or patients are being exposed to an unacceptable health risk. Other reasons for suspension or termination may be made based on evolving business objectives and/or competitive climate. Reporting Clinical Trial Results Under the Public Health Service Act, sponsors of clinical trials of certain FDA-regulated products, including prescription drugs and biologics, are required to register and disclose certain clinical trial information on a public registry (clinicaltrials.gov) maintained by the U.S. National Institutes of Health, or NIH. Information related to the product, patient population, phase of investigation, study sites and investigators and other aspects of the clinical trial is made public as part of the registration of the clinical trial. The NIH and the FDA have recently signaled the government’s willingness to begin enforcing these requirements against non-compliant clinical trial sponsors. The failure to submit clinical trial information to clinicaltrials.gov is also a prohibited act under the FDCA with violations subject to potential civil monetary penalties of up to $10,000 for each day the violation continues. Violations may also result in injunctions and/or criminal prosecution or disqualification from federal grants. Expanded Access to an Investigational Drug for Treatment Use Expanded access, sometimes called “compassionate use,” is the use of investigational new drug products outside of clinical trials to treat patients with serious or immediately life-threatening diseases or conditions when there are no comparable or satisfactory alternative treatment options. The rules and regulations related to expanded access are intended to improve access 13 Table of Contents to investigational drugs for patients who may benefit from investigational therapies. FDA regulations allow access to investigational drugs under an IND by the company or the treating physician for treatment purposes on a case-by-case basis for: individual patients (single-patient IND applications for treatment in emergency settings and non-emergency settings); intermediate-size patient populations; and larger populations for use of the drug under a treatment protocol or Treatment IND Application. When considering an IND application for expanded access to an investigational product with the purpose of treating a patient or a group of patients, the sponsor and treating physicians or investigators will determine suitability when all of the following criteria apply: patient(s) have a serious or immediately life-threatening disease or condition, and there is no comparable or satisfactory alternative therapy to diagnose, monitor, or treat the disease or condition; the potential patient benefit justifies the potential risks of the treatment and the potential risks are not unreasonable in the context or condition to be treated; and the expanded use of the investigational drug for the requested treatment will not interfere initiation, conduct, or completion of clinical investigations that could support marketing approval of the product or otherwise compromise the potential development of the product. While there is no obligation to make investigational products available for expanded access, sponsors are required to make policies for evaluating and responding to requests for expanded access publicly available upon the earlier of initiation of a Phase 2 or Phase 3 clinical trial, or 15 days after the drug or biologic receives designation as a breakthrough therapy, fast track product, or regenerative medicine advanced therapy. In addition, the Right to Try Act, among other things, provides a federal framework for certain patients to access certain investigational new drug products that have completed a Phase 1 clinical trial and are undergoing investigation for FDA approval. Under certain circumstances, eligible patients can seek treatment without enrolling in clinical trials and without obtaining FDA permission under the FDA expanded access program. There is no obligation for a drug manufacturer to make its drug products available to eligible patients as a result of the Right to Try Act, but the manufacturer must develop an internal policy and respond to patient requests according to that policy. Human Clinical Trials in Support of an NDA Clinical trials involve the administration of the investigational product candidate to human subjects under the supervision of a qualified investigator in accordance with GCP requirements which include, among other things, the requirement that all research subjects provide their informed consent in writing before their participation in any clinical trial. Clinical trials are conducted under written clinical trial protocols detailing, among other things, the objectives of the study, inclusion and exclusion criteria, the parameters to be used in monitoring safety and the effectiveness criteria to be evaluated. Human clinical trials are typically conducted in three sequential phases, but the phases may overlap or be combined. Phase 1 clinical trials are initially conducted in a limited population to test the product candidate for safety, including adverse effects, dose tolerance, absorption, metabolism, distribution, excretion and pharmacodynamics in healthy humans or in patients. During Phase 1 clinical trials, information about the investigational drug product’s pharmacokinetics and pharmacological effects may be obtained to permit the design of well-controlled and scientifically valid Phase 2 clinical trials. Phase 2 clinical trials are generally conducted in a limited patient population to identify possible adverse effects and safety risks, evaluate the efficacy of the product candidate for specific targeted indications, and determine dose tolerance and optimal dosage. Multiple Phase 2 clinical trials may be conducted by the sponsor to obtain information prior to beginning larger and more costly Phase 3 clinical trials. Phase 2 clinical trials are well controlled, closely monitored and conducted in a limited patient population. Phase 3 clinical trials proceed if the Phase 2 clinical trials demonstrate that a dose range of the product candidate is potentially effective and has an acceptable safety profile. Phase 3 clinical trials are undertaken within an expanded patient population to further evaluate dosage, provide substantial evidence of clinical efficacy, and further test for safety in an expanded and diverse patient population at multiple, geographically dispersed clinical trial sites. The FDA may require more than one Phase 3 clinical trial to support approval of a product candidate. A well-controlled, statistically robust Phase 3 clinical trial may be designed to deliver the data that regulatory authorities will use to decide whether or not to approve, and, if approved, how to appropriately label a drug; such Phase 3 clinical trials are referred to as “pivotal.” A phase 2 clinical trial can be a “pivotal” trial if the design provides a well-controlled and reliable assessment of clinical benefit, particularly in an area of unmet medical need. A company’s designation of the phase of a trial is not necessarily indicative that the trial will be sufficient to satisfy the FDA requirements of that phase. In some cases, the FDA may approve an NDA for a product candidate but require the sponsor to conduct additional clinical trials to further assess the product candidate’s safety and effectiveness after approval. Such post-approval trials are typically referred to as Phase 4 clinical trials. These trials are used to gain additional experience from the treatment of a larger number of patients in the intended treatment group and to further document a clinical benefit in the case of drugs approved under 14 Table of Contents accelerated approval regulations. Failure to exhibit due diligence with regard to conducting Phase 4 clinical trials could result in withdrawal of approval for products. Progress reports detailing the results of clinical trials must be submitted at least annually to the FDA and more frequently if serious adverse events occur. In addition, IND safety reports must be submitted to the FDA for any of the following: serious and unexpected suspected adverse reactions; findings from other studies or animal or in vitro testing that suggest a significant risk in humans exposed to the product; and any clinically important increase in the case of a serious suspected adverse reaction over that listed in the protocol or investigator brochure. Phase 1, Phase 2 and Phase 3 clinical trials may not be completed successfully within any specified period, or at all. The FDA will typically inspect one or more clinical sites to assure compliance with GCP and the integrity of the clinical data submitted. Review and Approval of an NDA In order to obtain approval to market a drug product in the United States, a marketing application must be submitted to the FDA that provides sufficient data establishing the safety and efficacy of the proposed drug product for its intended indication. The application must include all relevant data available from pertinent preclinical and clinical trials, including negative or ambiguous results as well as positive findings, together with detailed information relating to the product’s chemistry, manufacturing, controls and proposed labeling, among other things. Data can come from company-sponsored clinical trials intended to test the safety and effectiveness of a use of a product, or from a number of alternative sources, including studies initiated by investigators. To support marketing approval, the data submitted must be sufficient in quality and quantity to establish the safety and efficacy of the drug product to the satisfaction of the FDA. The NDA is a vehicle through which applicants formally propose that the FDA approve a new product for marketing and sale in the United States for one or more indications. Every new drug product candidate must be the subject of an approved NDA before it may be commercialized in the United States. Under federal law, the submission of most NDAs is subject to an application user fee, which for federal fiscal year 2022 is approximately $3.1 million. The sponsor of an approved NDA is also subject to an annual program fee, which for fiscal year 2022 is approximately $369,000 per product. Certain exceptions and waivers are available for some of these fees, such as an exception from the application fee for products with orphan designation and a waiver for certain small businesses. Following submission of an NDA, the FDA conducts a preliminary review of the application generally within 60 calendar days of its receipt and must inform the sponsor at that time or before whether the application is sufficiently complete to permit substantive review. The FDA may request additional information rather than accept the application for filing. In this event, the application must be resubmitted with the additional information. The resubmitted application is also subject to review before the FDA accepts it for filing. Once the submission is accepted for filing, the FDA begins an in-depth substantive review. Under the goals and policies agreed to by the FDA under the Prescription Drug User Fee Act, or PDUFA, applications seeking approval of New Molecular Entities, or NMEs, are meant to be reviewed within ten months from the date on which the FDA accepts the application for filing. The review process and the PDUFA goal date may be extended by the FDA for three additional months to consider new information or clarification provided by the applicant to address an outstanding deficiency identified by the FDA following the original submission. Before approving an application, the FDA typically will inspect the facility or facilities where the product is or will be manufactured. These pre-approval inspections may cover all facilities associated with an NDA submission, including component manufacturing, finished product manufacturing and control testing laboratories. 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. Under the FDA Reauthorization Act of 2017, the FDA must implement a protocol to expedite review of responses to inspection reports pertaining to certain applications, including applications for products in shortage or those for which approval is dependent on remediation of conditions identified in the inspection report. In addition, as a condition of approval, the FDA may require an applicant to develop a REMS. REMS use risk minimization strategies beyond the professional labeling to ensure that the benefits of the product outweigh the potential risks. REMS could include medication guides, communication plans for health care professionals, and elements to assure safe use, including special training or certification for prescribing or dispensing, dispensing only under certain circumstances, special monitoring and the use of patent registries. To determine whether a REMS is needed, the FDA will consider the size of the population likely to use the product, seriousness of the disease, expected benefit of the product, expected duration of treatment, seriousness of known or potential adverse events and whether the product is a NME. The FDA may refer an application for a novel product which presents difficult questions of safety or efficacy to an advisory committee or explain why such referral was not made. Typically, 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 when making decisions. 15 Table of Contents Fast Track, Breakthrough Therapy, Priority Review and Regenerative Advanced Therapy Designations The FDA is authorized to designate certain products for expedited review if they are intended to address an unmet medical need in the treatment of a serious or life-threatening disease or condition. These programs are referred to as Fast Track designation, Breakthrough Therapy designation, priority review designation and regenerative advanced therapy designation. • • • • Fast Track Designation. The FDA may designate a product for Fast Track review if it is intended, whether alone or in combination with one or more other products, for the treatment of a serious or life-threatening disease or condition, and it demonstrates the potential to address unmet medical needs for such a disease or condition. For Fast Track products, sponsors may have greater interactions with the FDA and the FDA may initiate review of sections of a Fast Track product’s application before the application is complete. This rolling review process may be available if the FDA determines, after preliminary evaluation of clinical data submitted by the sponsor, that a Fast Track product may be effective. However, the FDA’s time period goal for reviewing a Fast Track application does not begin until the last section of the application is submitted. In addition, the Fast Track designation may be withdrawn by the FDA if the FDA believes that the designation is no longer supported by data emerging in the clinical trial process. Breakthrough Therapy Designation. A product may be designated as a Breakthrough Therapy if it is intended, either alone or in combination with one or more other products, to treat a serious or life-threatening disease or condition and preliminary clinical evidence indicates that the product may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints. The FDA may take certain actions with respect to Breakthrough Therapies, including: holding meetings with the sponsor throughout the development process; providing timely advice to the product sponsor regarding development and approval; involving more senior staff in the review process; assigning a cross-disciplinary project lead for the review team; and taking other steps to design the clinical trials in an efficient manner. Priority Review. The FDA may designate a product for priority review if it is a product that treats a serious condition and, if approved, would provide a significant improvement in safety or effectiveness when compared with other available therapies. Significant improvement may be illustrated by evidence of increased effectiveness in the treatment of a condition, elimination or substantial reduction of a treatment-limiting product reaction, documented enhancement of patient compliance that may lead to improvement in serious outcomes, and evidence of safety and effectiveness in a new subpopulation. A priority designation is intended to direct overall attention and resources to the evaluation of such applications, and to shorten the FDA’s goal for review of a marketing application from ten months to six months. Regenerative Advanced Therapy Designation. A product is eligible for regenerative advanced therapies designation if it is a regenerative medicine therapy that is intended to treat, modify, reverse or cure a serious or life-threatening disease or condition, and preliminary clinical evidence indicates that the product has the potential to address unmet medical needs for such disease or condition. The benefits of a regenerative advanced therapy designation include early interactions with FDA to expedite development and review, benefits available to breakthrough therapies, potential eligibility for priority review and accelerated approval based on surrogate or intermediate endpoints. Accelerated Approval Pathway Drug or biologic products studied for their safety and effectiveness in treating serious or life-threatening illnesses and that provide meaningful therapeutic benefit over existing treatments may receive accelerated approval. Accelerated approval means that a product candidate may be approved on the basis of adequate and well controlled clinical trials establishing that the product candidate has an effect on a surrogate endpoint that is reasonably likely to predict a clinical benefit, or on the basis of an effect on a clinical endpoint other than survival or irreversible morbidity or mortality or other clinical benefit, taking into account the severity, rarity and prevalence of the condition and the availability or lack of alternative treatments. As a condition of approval, the FDA may require that a sponsor of a drug or biologic product candidate receiving accelerated approval perform adequate and well controlled post-marketing clinical trials. In addition, the FDA currently requires as a condition for accelerated approval pre-approval of promotional materials. The FDA’s Decision on an NDA Based on its evaluation of the application and accompanying information, including the results of the inspection of the manufacturing facilities, the FDA may issue an approval letter or a complete response letter. An approval letter authorizes commercial marketing of the product with specific prescribing information for the approved indications. A complete response letter generally indicates that the review cycle is complete and outlines the deficiencies in the submission and may require substantial additional testing or information in order for the FDA to reconsider the application. An applicant has one year to respond to the deficiencies identified in the complete response letter. The FDA has committed to reviewing such resubmissions in two or six months depending on the type of information included. Even with submission of this additional information, the FDA ultimately may decide that the application does not satisfy the regulatory criteria for approval. 16 Table of Contents If the FDA approves a new product, it may limit the approved indications for use of the product. The FDA may also require contraindications, warnings or precautions be included in the product labeling, require post-approval trials, 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, including REMS,to help ensure that the benefits of the product outweigh the potential risks. The FDA may prevent or limit further marketing of a product based on the results of post-marketing trials or surveillance programs. After approval, many 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. Under the Ensuring Innovation Act, signed into law in 2021, the FDA must publish action packages summarizing its decisions to approve new drugs within 30 days or approval of such drugs. Post-Approval Regulation If regulatory approval for marketing of a product or new indication for an existing product is obtained, the sponsor will be required to comply with all regular post-approval regulatory requirements as well as any post-approval requirements that the FDA may have imposed as part of the approval process. The sponsor will be required to report, among other things, certain adverse reactions and manufacturing problems to the FDA, provide updated safety and efficacy information and comply with requirements concerning advertising and promotional labeling requirements. Manufacturers and certain of their subcontractors are required to register their establishments with the FDA and certain state agencies, and are subject to periodic unannounced inspections by the FDA and certain state agencies for compliance with ongoing regulatory requirements, including cGMP regulations. Accordingly, the sponsor and its third-party manufacturers must continue to expend time, money and effort in the areas of production and quality control to maintain compliance with cGMP and other regulatory requirements. A product may also be subject to official lot release, meaning that the manufacturer is required to perform certain tests on each lot of the product before it is released for distribution. If the product is subject to official release, the manufacturer must submit samples of each lot, together with a release protocol showing a summary of the history of manufacture of the lot and the results of all of the manufacturer’s tests performed on the lot, to the FDA. The FDA may in addition perform certain confirmatory tests on lots of some products before releasing the lots for distribution. Finally, the FDA will conduct laboratory research related to the safety, purity, potency and effectiveness of pharmaceutical products. Once an approval is granted, the FDA may withdraw the approval if compliance with regulatory requirements 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, with manufacturing processes, or failure to comply with regulatory requirements, may result in: revisions to the approved labeling to add new safety information; imposition of post-market studies or clinical trials to assess safety risks; or imposition of distribution or other restrictions under a REMS program. 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 applications or supplements to approved applications, or suspension or revocation of product license 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 the marketing, labeling, advertising and promotion of prescription drug products placed on the market. This regulation includes, among other things, standards and regulations for direct-to-consumer advertising, communications regarding unapproved uses, industry-sponsored scientific and educational activities, and promotional activities involving the Internet and social media. Promotional claims about a drug’s safety or effectiveness are prohibited before the drug is approved. After approval, a drug product generally may not be promoted for uses that are not approved by the FDA, as reflected in the product’s prescribing information. In the United States, health care professionals are generally permitted to prescribe drugs for such uses not described in the drug’s labeling, known as off-label uses, because the FDA does not regulate the practice of medicine. However, FDA regulations impose rigorous restrictions on manufacturers’ communications, prohibiting the promotion of off-label uses. It may be permissible, under very specific, narrow conditions, for a manufacturer to engage in nonpromotional, non-misleading communication regarding off-label information, such as distributing scientific or medical journal information. If a company is found to have promoted off-label uses, it may become subject to adverse public relations and administrative and judicial enforcement by the FDA, the DOJ, or the Office of the Inspector General of the Department of Health and Human Services, as well as state authorities. This could subject a company to a range of penalties that could have a significant commercial impact, including civil and criminal fines and agreements that materially restrict the manner in which a company 17 Table of Contents promotes or distributes drug products. The federal government has levied large civil and criminal fines against companies for alleged improper promotion, and has also requested that companies enter into consent decrees or permanent injunctions under which specified promotional conduct is changed or curtailed. In addition, the distribution of prescription pharmaceutical products is subject to the Prescription Drug Marketing Act, or PDMA, and its implementing regulations, as well as the Drug Supply Chain Security Act, or DSCSA, which regulate the distribution and tracing of prescription drug samples at the federal level, and set minimum standards for the regulation of drug distributors by the states. The PDMA, its implementing regulations and state laws limit the distribution of prescription pharmaceutical product samples, and the DSCSA imposes requirements to ensure accountability in distribution and to identify and remove counterfeit and other illegitimate products from the market. Section 505(b)(2) NDAs NDAs for most new drug products are based on two full clinical trials which must contain substantial evidence of the safety and efficacy of the proposed new product for the proposed use. These applications are submitted under Section 505(b)(1) of the FDCA. The FDA is, however, authorized to approve an alternative type of NDA under Section 505(b)(2) of the FDCA. This type of application allows the applicant to rely, in part, on the FDA’s previous findings of safety and efficacy for a similar product, or published literature. Specifically, Section 505(b)(2) applies to NDAs for a drug for which the investigations made to show whether or not the drug is safe for use and effective in use and relied upon by the applicant for approval of the application “were not conducted by or for the applicant and for which the applicant has not obtained a right of reference or use from the person by or for whom the investigations were conducted.” Section 505(b)(2) authorizes the FDA to approve an NDA based on safety and effectiveness data that were not developed by the applicant. NDAs filed under Section 505(b)(2) may provide an alternate and potentially more expeditious pathway to FDA approval for new or improved formulations or new uses of previously approved products. If the 505(b)(2) applicant can establish that reliance on the FDA’s previous approval is scientifically appropriate, the applicant may eliminate the need to conduct certain preclinical or clinical studies of the new product. The FDA may also require companies to perform additional studies or measurements to support the change from the approved product. The FDA may then approve the new drug candidate for all or some of the label indications for which the referenced product has been approved, as well as for any new indication sought by the Section 505(b)(2) applicant. Generic Drugs and Regulatory Exclusivity In 1984, with passage of the Hatch-Waxman Amendments to the FDCA, Congress established an abbreviated regulatory scheme authorizing the FDA to approve generic drugs that are shown to contain the same active ingredients as, and to be bioequivalent to, drugs previously approved by the FDA pursuant to NDAs. Such previously approved drugs are known as the reference listed drugs, or RLDs. Abbreviated new drug applications, or ANDAs, for generic drugs generally do not include preclinical and clinical data to demonstrate safety and effectiveness. Instead, the applicant may rely on the preclinical and clinical testing previously conducted for the RLD. To approve an ANDA, the FDA must find that the generic version is identical to the RLD, with respect to the active ingredients, the route of administration, the dosage form, the strength of the drug and the conditions of use of the drug. At the same time, the FDA must also determine that the generic drug is “bioequivalent” to the RLD. Under the statute, a generic drug is bioequivalent to an RLD if “the rate and extent of absorption of the drug do not show a significant difference from the rate and extent of absorption of the listed drug.” Upon approval of an ANDA, the FDA indicates whether the generic product is “therapeutically equivalent” to the RLD in its publication “Approved Drug Products with Therapeutic Equivalence Evaluations,” also referred to as the “Orange Book.” Physicians and pharmacists consider a therapeutic equivalent generic drug to be fully substitutable for the RLD. Under the Hatch-Waxman Act, the FDA may not approve an ANDA or 505(b)(2) application until any applicable period of non-patent exclusivity for the RLD has expired. The FDCA provides a period of five years of non-patent data exclusivity for a new drug containing a new chemical entity, or NCE. For the purposes of this provision an NCE, is a drug that contains no active moiety that has previously been approved by the FDA in any other NDA. An active moiety is the molecule or ion responsible for the physiological or pharmacological action of the drug substance. In cases where such NCE exclusivity has been granted, a generic or follow-on drug application may not be filed with the FDA until the expiration of five years unless the submission is accompanied by a Paragraph IV certification, in which case the applicant may submit its application four years following the original product approval. The FDCA also provides for a period of three years of exclusivity if the NDA includes reports of one or more new clinical investigations, other than bioavailability or bioequivalence studies, that were conducted by or for the applicant and are essential to the approval of the application. This three-year exclusivity period often protects changes to a previously approved drug product, such as new indications, dosage forms, route of administration, combination of ingredients. Three-year exclusivity would be available for a drug product that contains a previously approved active moiety, provided the statutory requirement for 18 Table of Contents a new clinical investigation is satisfied. Unlike five-year NCE exclusivity, an award of three-year exclusivity does not block the FDA from accepting ANDAs or 505(b)(2) NDAs seeking approval for generic versions of the drug as of the date of approval of the original drug product; rather, this three-year exclusivity covers only the conditions of use associated with the new clinical investigations and, as a general matter, does not prohibit the FDA from approving follow-on applications for drugs containing the original active ingredient. Upon submission of an NDA or a supplement thereto, NDA sponsors are required to list with the FDA each patent with claims that cover the applicant’s product or an approved method of using the product. Upon approval of a new drug, each of the patents listed by the NDA sponsor is published in the Orange Book. When an ANDA applicant files its application with the FDA, the applicant is required to certify to the FDA concerning any patents listed for the reference product in the Orange Book. Specifically, the applicant must certify: (i) the required patent information has not been filed, (ii) the listed patent has expired, (iii) the listed patent has not expired, but will expire on a particular date and approval is sought after patent expiration or (iv) the listed patent is invalid, unenforceable or will not be infringed by the new product. To the extent that the Section 505(b)(2) applicant is relying on studies conducted for an already approved product, the applicant is required to certify to the FDA concerning any patents listed for the approved product in the Orange Book to the same extent that an ANDA applicant would. A certification that the new product will not infringe the already approved product’s listed patents or that such patents are invalid or unenforceable is called a Paragraph IV certification. If the applicant does not challenge the listed patents, the ANDA or 505(b)(2) NDA will not be approved until all the listed patents claiming the referenced product have expired. If the ANDA applicant or the 505(b)(2) applicant has provided a Paragraph IV certification to the FDA, the applicant must also send notice of the Paragraph IV certification to the NDA owner and patent holders once the ANDA or 505(b)(2) NDA has been accepted for filing by the FDA. The NDA owner and patent holders may then initiate a patent infringement lawsuit in response to the notice of the Paragraph IV certification. The filing of a patent infringement lawsuit within 45 days after the receipt of a Paragraph IV certification automatically prevents the FDA from approving the ANDA or 505(b) (2) NDA until the earlier of 30 months after the receipt of the Paragraph IV notice, expiration of the patent, or a decision in the infringement case that is favorable to the ANDA or 505(b)(2) applicant. Pediatric Studies Under the Pediatric Research Equity Act of 2003, or PREA, an NDA or supplement thereto must contain data that are adequate to assess the safety and effectiveness of the product 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. Sponsors must also submit pediatric study plans prior to the assessment data. Those plans must contain an outline of the proposed pediatric study or studies the applicant plans to conduct, including study objectives and design, any deferral or waiver requests and other information required by regulation. The applicant, the FDA, and the FDA’s internal review committee must then review the information submitted, consult with each other and agree upon a final plan. The FDA or the applicant may request an amendment to the plan at any time. For drugs intended to treat a serious or life-threatening disease or condition, the FDA must, upon the request of an applicant, meet to discuss preparation of the initial pediatric study plan or to discuss deferral or waiver of pediatric assessments. In addition, the FDA will meet early in the development process to discuss pediatric study plans with sponsors, and the FDA must meet with sponsors by no later than the end-of-phase 1 meeting for serious or life- threatening diseases and by no later than ninety (90) days after the FDA’s receipt of the study plan. 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. A deferral may be granted for several reasons, including a finding that the product or therapeutic candidate is ready for approval for use in adults before pediatric trials are complete or that additional safety or effectiveness data needs to be collected before the pediatric trials begin. Unless otherwise required by regulation, the pediatric data requirements do not apply to products with orphan designation, although FDA has recently taken steps to limit what it considers abuse of this statutory exemption in PREA by announcing that it does not intend to grant any additional orphan drug designations for rare pediatric subpopulations of what is otherwise a common disease. The FDA maintains a list of diseases that are exempt from the requirements of the PREA. Pediatric Exclusivity Pediatric exclusivity is another type of non-patent marketing exclusivity in the United States and, if granted, provides for the attachment of an additional six months of marketing protection to the term of any existing patent or regulatory exclusivity, including the non-patent and orphan exclusivity. This six- month exclusivity may be granted if an NDA sponsor submits pediatric data that fairly respond to a written request from the FDA for such data. The data do not need to show the product to be effective in the pediatric population studied; rather, if the clinical trial is deemed to fairly respond to the FDA’s request, the additional protection is granted. If reports of requested pediatric studies are submitted to and accepted by the FDA within the statutory time limits, whatever statutory or regulatory periods of exclusivity or patent protection cover the product are extended 19 Table of Contents by six months. This is not a patent term extension, but it effectively extends the regulatory period during which the FDA cannot approve another application. With regard to patents, the six-month pediatric exclusivity period will not attach to any patents for which a generic (ANDA or 505(b)(2) NDA) applicant submitted a Paragraph IV certification, unless the NDA sponsor or patent owner first obtains a court determination that the patent is valid and infringed by a proposed generic product. Orphan Drug Designation and Exclusivity Under the Orphan Drug Act, the FDA may designate a drug product as an “orphan drug” if it is intended to treat a rare disease or condition, generally meaning that it affects fewer than 200,000 individuals in the United States, or more in cases in which there is no reasonable expectation that the cost of developing and making a product available in the United States for treatment of the disease or condition will be recovered from sales of the product. A company must seek orphan drug designation before submitting an NDA for the candidate product. If the request is granted, the FDA will disclose the identity of the therapeutic agent and its potential use. Orphan drug designation does not shorten the PDUFA goal dates for the regulatory review and approval process, although it does convey certain advantages such as tax benefits and exemption from the PDUFA application fee. If a product with orphan designation receives the first FDA approval for the disease or condition for which it has such designation, or for a select indication or use within the rare disease or condition for which it was designated, the product generally will receive orphan drug exclusivity. Orphan drug exclusivity means that the FDA may not approve another sponsor’s marketing application for the same drug for the same condition for seven years, except in certain limited circumstances. Orphan exclusivity does not block the approval of a different product for the same rare disease or condition, nor does it block the approval of the same product for different conditions. If a drug designated as an orphan drug ultimately receives marketing approval for an indication broader than what was designated in its orphan drug application, it may not be entitled to exclusivity. Orphan drug exclusivity will not bar approval of another product under certain circumstances, including if a subsequent product with the same drug for the same condition is shown to be clinically superior to the approved product on the basis of greater efficacy or safety, or providing a major contribution to patient care, or if the company with orphan drug exclusivity is not able to meet market demand. This is the case despite an earlier court opinion holding that the Orphan Drug Act unambiguously required the FDA to recognize orphan exclusivity regardless of a showing of clinical superiority. The requirement for a product to show clinical superiority applies to product candidates that received orphan drug designation before the enactment of amendments to the FDCA in 2017 but have not been approved by the FDA. It is unclear how the FDA will implement a recent court decision concluding that orphan drug exclusivity applies to the entire designated disease or condition rather than the “indication or use”. Patent Term Restoration and Extension A patent claiming a new drug product, its method of use or its method of manufacture may be eligible for a limited patent term extension under the Hatch- Waxman Act, which permits a patent restoration of up to five years for patent term lost during product development and the FDA regulatory review. The restoration period granted on a patent covering a product is typically one-half the time between the effective date of when a clinical investigation involving human beings has begun and the submission date of an application for approval, plus the time between the submission date of an application and the ultimate approval date. Patent term restoration cannot be used to extend the remaining term of a patent past a total of 14 years from the product’s approval date. Only one patent applicable to an approved product is eligible for the extension, and the application for the extension must be submitted prior to the expiration of the patent in question. A patent that covers multiple products for which approval is sought can only be extended in connection with one of the approvals. The USPTO reviews and approves the application for any patent term extension or restoration in consultation with the FDA. Health Care Law and Regulation Health care providers and third-party payors play a primary role in the recommendation and prescription of drug products that are granted marketing approval. Arrangements with providers, consultants, third-party payors and customers are subject to broadly applicable fraud and abuse, anti-kickback, false claims laws, patient privacy laws and regulations and other health care laws and regulations that may constrain business and/or financial arrangements. Restrictions under applicable federal and state health care laws and regulations, include the following: • • the federal Anti-Kickback Statute, which prohibits, among other things, persons and entities from knowingly and willfully soliciting, offering, paying, receiving or providing remuneration, directly or indirectly, in cash or in kind, to induce or reward either the referral of an individual for, or the purchase, order or recommendation of, any good or service, for which payment may be made, in whole or in part, under a federal health care program such as Medicare and Medicaid; the federal civil and criminal false claims laws, including the civil False Claims Act, and civil monetary penalties laws, which prohibit individuals or entities from, among other things, knowingly presenting, or causing to be presented, to the federal government, claims for payment that are false, fictitious or fraudulent or knowingly making, using or causing to 20 Table of Contents • • • • • • made or used a false record or statement to avoid, decrease or conceal an obligation to pay money to the federal government; the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which created additional federal criminal laws that prohibit, among other things, knowingly and willfully executing, or attempting to execute, a scheme to defraud any health care benefit program or making false statements relating to health care matters; HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act, and their respective implementing regulations, including the Final Omnibus Rule published in January 2013, which impose obligations, including mandatory contractual terms, with respect to safeguarding the privacy, security and transmission of individually identifiable health information; the federal false statements statute, which prohibits knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statement in connection with the delivery of or payment for health care benefits, items or services; the Foreign Corrupt Practices Act, or FCPA, which prohibits companies and their intermediaries from making, or offering or promising to make improper payments to non-U.S. officials for the purpose of obtaining or retaining business or otherwise seeking favorable treatment; the federal transparency requirements known as the federal Physician Payments Sunshine Act, under the Patient Protection and Affordable Care Act, as amended by the Health Care Education Reconciliation Act, or the ACA, which requires certain manufacturers of drugs, devices, biologics and medical supplies to report annually to the Centers for Medicare & Medicaid Services, or CMS, within the United States Department of Health and Human Services, information related to payments and other transfers of value made by that entity to physicians, other healthcare providers and teaching hospitals, as well as ownership and investment interests held by physicians, other healthcare providers and their immediate family members; and analogous state and foreign laws and regulations, such as state anti-kickback and false claims laws, which may apply to health care items or services that are reimbursed by non-government third-party payors, including private insurers. Further, some state laws require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government in addition to requiring manufacturers to report information related to payments to physicians and other health care providers or marketing expenditures. Additionally, some state and local laws require the registration of pharmaceutical sales representatives in the jurisdiction. State and foreign laws also govern 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. Violations of these laws are punishable by criminal and/or civil sanctions, including, in some instances, exclusion from participation in federal and state health care programs, such as Medicare and Medicaid. Pharmaceutical Insurance Coverage and Health Care Reform In the United States and other countries, patients who are prescribed treatments for their conditions and providers performing the prescribed services generally rely on third-party payors to reimburse all or part of the associated health care costs. Significant uncertainty exists as to the coverage and reimbursement status of products approved by the FDA and other government authorities. Thus, even if a product candidate is approved, sales of the product will depend, in part, on the extent to which third-party payors, including government health programs in the United States such as Medicare and Medicaid, commercial health insurers and managed care organizations, provide coverage and establish adequate reimbursement levels for the product. The process for determining whether a payor will provide coverage for a product may be separate from the process for setting the price or reimbursement rate that the payor will pay for the product once coverage is approved. Third-party payors are increasingly challenging the prices charged, examining the medical necessity and reviewing the cost-effectiveness of medical products and services and imposing controls to manage costs. Third-party payors may limit coverage to specific products on an approved list, also known as a formulary, which might not include all of the approved products for a particular indication. In order to secure coverage and reimbursement for any product that might be approved for sale, a company may need to conduct expensive pharmacoeconomic studies in order to demonstrate the medical necessity and cost-effectiveness of the product, in addition to the costs required to obtain FDA or other comparable marketing approvals. Nonetheless, product candidates may not be considered medically necessary or cost effective. A decision by a third-party payor not to cover a product could reduce physician utilization once the product is approved and have a material adverse effect on sales, results of operations and financial condition. Additionally, a payor’s decision to provide coverage for a product does not imply that an adequate reimbursement rate will be approved. Further, one payor’s determination to provide coverage for a product does not assure that other payors will also provide coverage and reimbursement for the product, and the level of coverage and reimbursement can differ significantly from payor to payor. 21 Table of Contents The containment of health care costs also has become a priority of federal, state and foreign governments, and the prices of products have been a focus in this effort. Governments have shown significant interest in implementing cost-containment programs, including price controls, restrictions on reimbursement and requirements for substitution of generic products. Adoption of price controls and cost-containment measures, and adoption of more restrictive policies in jurisdictions with existing controls and measures, could further limit a company’s revenue generated from the sale of any approved products. Coverage policies and third-party reimbursement rates may change at any time. Even if favorable coverage and reimbursement status is attained for one or more products for which a company or its collaborators receive marketing approval, less favorable coverage policies and reimbursement rates may be implemented in the future. There have been a number of federal and state proposals during the last few years regarding the pricing of pharmaceutical and biopharmaceutical products, limiting coverage and reimbursement for drugs, biologics and other medical products, government control and other changes to the health care system in the United States. In March 2010, the United States Congress enacted the ACA, which, among other things, includes changes to the coverage and payment for drug products under government health care programs. Among the provisions of the ACA of importance to our potential product candidates are: • • • • • • • an annual, nondeductible fee on any entity that manufactures or imports specified branded prescription drugs and biologic agents, apportioned among these entities according to their market share in certain government healthcare programs; expansion of eligibility criteria for Medicaid programs by, among other things, allowing states to offer Medicaid coverage to certain individuals with income at or below 133% of the federal poverty level, thereby potentially increasing a manufacturer’s Medicaid rebate liability; expanded manufacturers’ rebate liability under the Medicaid Drug Rebate Program by increasing the minimum rebate for both branded and generic drugs, and revising the definition of “average manufacturer price,” or AMP, for calculating and reporting Medicaid drug rebates on outpatient prescription drug prices; addressed a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted or injected; expanded the types of entities eligible for the 340B drug discount program; established the Medicare Part D coverage gap discount program by requiring manufacturers to provide a 50% (and 70% starting January 1, 2019) point-of-sale-discount off the negotiated price of applicable brand drugs to eligible beneficiaries during their coverage gap period as a condition for the manufacturers’ outpatient drugs to be covered under Medicare Part D; and a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct comparative clinical effectiveness research, along with funding for such research. Other legislative changes have been proposed and adopted in the United States since the ACA was enacted. In August 2011, the Budget Control Act of 2011, among other things, created measures for spending reductions by Congress. A Joint Select Committee on Deficit Reduction, tasked with recommending a targeted deficit reduction of at least $1.2 trillion for the years 2013 through 2021, was unable to reach required goals, thereby triggering the legislation’s automatic reduction to several government programs. This includes aggregate reductions of Medicare payments to providers up to 2% per fiscal year, which will remain in effect through 2031. However, pursuant to the Coronavirus Aid, Relief and Economic Security Act and subsequent legislation, these Medicare reductions are suspended through the end of March 2022 and from April 2022 through June 2022, a 1% cut will be in effect, with the full 2% cut resuming thereafter. Since enactment of the ACA, there have been, and continue to be, numerous legal challenges and Congressional actions to repeal and replace provisions of the law. For example, with enactment of the Tax Cuts and Jobs Act of 2017 on December 22, 2017, Congress repealed the “individual mandate.” The repeal of this provision, which requires most Americans to carry a minimal level of health insurance, became effective in 2019. On November 10, 2020, the Supreme Court heard oral arguments as to whether the individual mandate portion of the ACA is an essential and inseverable feature of the ACA, and therefore because the mandate was repealed as part of the Tax Cuts and Jobs Act of 2017, the remaining provisions of the ACA are invalid as well. On June 17, 2021, the Supreme Court dismissed this action after finding that the plaintiffs did not have standing to challenge the ACA’s minimum essential coverage provision at issue in the case. Litigation and legislation over the ACA are likely to continue, with unpredictable and uncertain results. The Trump Administration also took executive actions to undermine or delay implementation of the ACA, including directing federal agencies with authorities and responsibilities under the ACA to waive, defer, grant exemptions from, or delay the implementation of any provision of the ACA that would impose a fiscal or regulatory burden on states, individuals, healthcare providers, health insurers, or manufacturers of pharmaceuticals or medical devices. On January 28, 2021, however, President 22 Table of Contents Biden rescinded those orders issued a new executive order which directs federal agencies to reconsider rules and other policies that limit Americans’ access to health care, and consider actions that will protect and strengthen that access. Under this executive order, federal agencies are directed to re-examine: policies that undermine protections for people with pre-existing conditions, including complications related to COVID-19; demonstrations and waivers under Medicaid and the ACA that may reduce coverage or undermine the programs, including work requirements; policies that undermine the Health Insurance Marketplace or other markets for health insurance; policies that make it more difficult to enroll in Medicaid and under the ACA; and policies that reduce affordability of coverage or financial assistance, including for dependents. The costs of prescription pharmaceuticals have also been the subject of considerable discussion in the United States. To date, there have been several recent U.S. congressional inquiries, as well as proposed and enacted state and federal legislation designed to, among other things, bring more transparency to drug pricing, review the relationship between pricing and manufacturer patient programs, and reduce the costs of drugs under Medicare and Medicaid. To those ends, President Trump issued several executive orders intended to lower the costs of prescription drug products. Certain of these orders are reflected in recently promulgated regulations, including an interim final rule implementing a most favored nation model for prices that would tie Medicare Part B payments for certain physician-administered pharmaceuticals to the lowest price paid in other economically advanced countries, effective January 1, 2021, but such rule has been subject to a nationwide preliminary injunction. In December 2021, the CMS issued a final rule to rescind it. With issuance of this rule, CMS stated that it will explore all options to incorporate value into payments for Medicare Part B pharmaceuticals and improve beneficiaries' access to evidence-based care. In November 2020, the Department of Health and Human Services, or HHS, finalized a regulation removing safe harbor protection for price reductions from pharmaceutical manufacturers to plan sponsors under Part D, either directly or through pharmacy benefit managers, unless the price reduction is required by law. The implementation of the rule has been delayed by the Biden administration from January 1, 2022 to January 1, 2023 in response to ongoing litigation. The rule also creates a new safe harbor for price reductions reflected at the point-of-sale, as well as a new safe harbor for certain fixed fee arrangements between pharmacy benefit managers and manufacturers, the implementation of which have also been delayed by the Biden administration until January 1, 2023. In addition, in response to an executive order from President Biden, the HHS recently released a plan to reduce pharmaceutical prices. At the state level, individual states are increasingly aggressive in passing legislation and implementing regulations designed to 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, HHS and the FDA published a final rule allowing states and other entities to develop a Section 804 Importation Program, or SIP, to import certain prescription drugs from Canada into the United States. The final rule is currently the subject of ongoing litigation, but at least six states (Vermont, Colorado, Florida, Maine, New Mexico and New Hampshire) have passed laws allowing for importation from Canada with the intent of developing SIPs for review and approval by the FDA. A number of states have also required drug manufacturers and other entities in the drug supply chain, including health carriers, pharmacy benefit managers and wholesale distributors, to disclose information about pricing of pharmaceuticals. In addition, regional health care authorities and individual hospitals are increasingly using bidding procedures to determine what pharmaceutical products and which suppliers will be included in their prescription drug and other health care programs. These measures could reduce the ultimate demand for our products, once approved, or put pressure on our product pricing. We expect that additional state and federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in reduced demand for our product candidates or additional pricing pressures. Review and Approval of Medicinal Products in the European Union In order to market any product outside of the United States, 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 non-U.S. regulatory authorities before it can commence clinical trials or marketing of the product in those countries or jurisdictions. Specifically, the process governing approval of medicinal products in the EU generally follows the same lines as in the United States. It entails satisfactory completion of preclinical studies and adequate and well-controlled clinical trials to establish the safety and efficacy of the product for each proposed indication. It also requires the submission to the relevant competent authorities of an MAA and granting of a marketing authorization by these authorities before the product can be marketed and sold in the EU. Clinical Trial Approval The Clinical Trials Directive 2001/20/EC, the Directive 2005/28/EC on GCP and the related national implementing provisions of the individual EU Member States govern the system for the approval of clinical trials in the EU. Under this system, an applicant must obtain prior approval from the competent national authority of the EU Member States in which the clinical trial 23 Table of Contents is to be conducted. Furthermore, the applicant may only start a clinical trial at a specific study site after the competent ethics committee has issued a favorable opinion. The clinical trial application must be accompanied by, among other documents, an investigational medicinal product dossier (the Common Technical Document) with supporting information prescribed by Directive 2001/20/EC, Directive 2005/28/EC, where relevant the implementing national provisions of the individual EU Member States and further detailed in applicable guidance documents. In April 2014, the Clinical Trial (Regulation, (EU)) No 536/2014 was adopted. The new Clinical Trial Regulation aims to simplify and streamline the approval of clinical trials in the EU. The main characteristics of the regulation include: a streamlined application procedure via a single entry point, the EU Portal and Database; a single set of documents to be prepared and submitted for the application as well as simplified reporting procedures for clinical trial sponsors; and a harmonized procedure for the assessment of applications for clinical trials, which is divided in two parts. Part I is assessed by the competent authorities of all EU Member States in which an application for authorization of a clinical trial has been submitted, or Concerned Member States. Part II is assessed separately by each Concerned Member State. Strict deadlines have been established for the assessment of clinical trial applications. The role of the relevant ethics committees in the assessment procedure will continue to be governed by the national law of the Concerned Member State. However, overall related timelines will be defined by the Clinical Trial Regulation. The Clinical Trial Regulation came into application on January 31, 2022 and is directly applicable in all the EU Member States, repealing the current Clinical Trials Directive 2001/20/EC. Conduct of all clinical trials performed in the EU were bound by previously applicable provisions until the new Clinical Trial Regulation became applicable. If a clinical trial continues for more than three years from the day on which the Clinical Trial Regulation became applicable, the Clinical Trial Regulation will begin to apply to the clinical trial as of the time of its effectiveness. Parties conducting certain clinical trials must, as in the United States, post clinical trial information in the EU at the EudraCT website: https://eudract.ema.europa.eu. PRIME Designation in the EU In March 2016, the EMA launched an initiative to facilitate development of product candidates in indications, often rare, for which few or no therapies currently exist. The priority medicines, or PRIME, scheme is intended to encourage drug development in areas of unmet medical need and provides accelerated assessment of products representing substantial innovation reviewed under the centralized procedure. Products from small- and medium-sized enterprises may qualify for earlier entry into the PRIME scheme than larger companies. Many benefits accrue to sponsors of product candidates with PRIME designation, including but not limited to, early and proactive regulatory dialogue with the EMA, frequent discussions on clinical trial designs and other development program elements, and accelerated marketing authorization application assessment once a dossier has been submitted. Importantly, a dedicated Agency contact and rapporteur from the Committee for Human Medicinal Products, or CHMP, or Committee for Advanced Therapies are appointed early in the PRIME scheme facilitating increased understanding of the product at EMA’s Committee level. Marketing Authorization To obtain a marketing authorization for a product under EU regulatory systems, an applicant must submit an MAA either under a centralized procedure administered by the EMA, or one of the procedures administered by competent authorities in the EU Member States, decentralized procedure; national procedure; or mutual recognition procedure. The centralized procedure provides for the grant of a single marketing authorization by the EMA that is valid in all EU Member States, as well as Iceland, Liechtenstein and Norway. The centralized procedure is compulsory for specific products, including for medicines produced by certain biotechnological processes, products designated as orphan medicinal products, advanced therapy medicinal products, and products with a new active substance indicated for the treatment of certain 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, the centralized procedure may be optional. The centralized procedure may at the request of the applicant also be used in certain other cases. The centralized procedure is optional for products that represent a significant therapeutic, scientific or technical innovation, or whose authorization would be in the interest of public health. Under the centralized procedure, the maximum timeframe for the evaluation of an MAA is 210 days, excluding clock stops, when additional information or written or oral explanation is to be provided by the applicant in response to questions of the CHMP. Accelerated assessment might be granted by the CHMP in exceptional cases, when a medicinal product is of major interest from the point of view of public health and from the viewpoint of therapeutic innovation. The timeframe for the evaluation of an MAA under the accelerated assessment procedure is 150 days, excluding stop clocks. 24 Table of Contents There are also two other possible routes to authorize medicinal products in several EU countries, which are available for investigational medicinal products that fall outside the scope of the centralized procedure: • • Decentralized procedure. Using the decentralized procedure, an applicant may apply for simultaneous authorization in more than one EU country of medicinal products that have not yet been authorized in any EU country and that do not fall within the mandatory scope of the centralized procedure. The applicant may choose a member state as the reference member state to lead the scientific evaluation of the application. Mutual recognition procedure. In the mutual recognition procedure, a medicine is first authorized in one EU Member State (which acts as the reference member state), in accordance with the national procedures of that country. Following this, further marketing authorizations can be progressively sought from other EU countries in a procedure whereby the countries concerned agree to recognize the validity of the original, national marketing authorization produced by the reference member state. Under the above-described procedures, before granting the marketing authorization, the EMA or the competent authorities of the Member States of the European Economic Area make an assessment of the risk-benefit balance of the product on the basis of scientific criteria concerning its quality, safety and efficacy. Conditional Approval The European Commission may also grant a so-called “conditional marketing authorization” prior to obtaining the comprehensive clinical data required for an application for a full marketing authorization. Such conditional marketing authorizations may be granted for product candidates (including medicines designated as orphan medicinal products), if (i) the product candidate is intended for the treatment, prevention or medical diagnosis of seriously debilitating or life-threatening diseases, (ii) the risk-benefit balance of the product candidate is positive; (iii) it is likely that the applicant will be in a position to provide the required comprehensive clinical trial data; (iv) the product fulfills an unmet medical need; and (v) the benefit to public health of the immediate availability on the market of the medicinal product concerned outweighs the risk inherent in the fact that additional data are still required. A conditional marketing authorization may contain specific obligations to be fulfilled by the marketing authorization holder, including obligations with respect to the completion of ongoing or new studies, and with respect to the collection of pharmacovigilance data. Conditional marketing authorizations are valid for one year, and may be renewed annually, if the risk-benefit balance remains positive, and after an assessment of the need for additional or modified conditions and/or specific obligations. The timelines for the centralized procedure described above also apply with respect to the review by the CHMP of applications for a conditional marketing authorization. Regulatory Data Protection in the EU In the EU, innovative medicinal products approved on the basis of a complete independent data package qualify for eight years of data exclusivity upon marketing authorization and an additional two years of market exclusivity pursuant to Directive 2001/83/EC. Regulation (EC) No 726/2004 repeats this entitlement for medicinal products authorized in accordance with the centralized authorization procedure. Data exclusivity prevents applicants for authorization of generics of these innovative products from referencing the innovator’s data to assess a generic (abridged) application for a period of eight years. During an additional two-year period of market exclusivity, a generic MAA can be submitted and authorized, and the innovator’s data may be referenced, but no generic medicinal product can be placed on the EU market until the expiration of the market exclusivity. The overall ten-year period will be extended to a maximum of 11 years if, during the first eight years of those ten years, the marketing authorization 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. Even if a compound is considered to be an NCE so that the innovator gains the prescribed period of data exclusivity, another company nevertheless could also market another version of the product if such company obtained marketing authorization based on an MAA with a complete independent data package of pharmaceutical, preclinical and clinical trials. Periods of Authorization and Renewals A marketing authorization has an initial validity for five years in principle. The marketing authorization 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. To this end, the marketing authorization holder must provide the EMA or the competent authority with a consolidated version of the file in respect of quality, safety and efficacy, including all variations introduced since the marketing authorization was granted, at least six months before the marketing authorization ceases to be valid. The European Commission or the competent authorities of the EU Member States may decide, on justified grounds relating to pharmacovigilance, to proceed with one additional five-year period of marketing authorization. Once subsequently definitively renewed, the marketing authorization 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 (in case of centralized procedure) or on the market of the authorizing EU Member State within three years after authorization ceases to be valid (the so-called sunset clause). 25 Table of Contents Pediatric Studies and Exclusivity Prior to obtaining a marketing authorization in the EU, applicants must demonstrate compliance with all measures included in an EMA-approved Pediatric Investigation Plan, or PIP, covering all subsets of the pediatric population, unless the EMA has granted a product-specific waiver, a class waiver, or a deferral for one or more of the measures included in the PIP. The respective requirements for all marketing authorization procedures are laid down in Regulation (EC) No 1901/2006, the so-called Pediatric Regulation. This requirement also applies when a company wants to add a new indication, pharmaceutical form or route of administration for a medicine that is already authorized. The Pediatric Committee of the EMA, or PDCO, may grant deferrals for some medicines, allowing a company to delay development of the medicine for children until there is enough information to demonstrate its effectiveness and safety in adults. The PDCO may also grant waivers when development of a medicine for children is not needed or is not appropriate, such as for diseases that only affect the adult population. Before an MAA can be filed or an existing marketing authorization can be amended, the EMA requests that companies comply with the agreed studies and measures listed in each relevant PIP. If an applicant obtains a marketing authorization in all EU Member States, or a marketing authorization granted in the centralized procedure by the European Commission, and the study results for the pediatric population are included in the product information, even when negative, the medicine is then eligible for an additional six month period of qualifying patent protection through extension of the term of the Supplementary Protection Certificate, or SPC, or alternatively a one year extension of the regulatory market exclusivity from ten to eleven years, as selected by the marketing authorization holder. Orphan Drug Designation and Exclusivity Regulation (EC) No. 141/2000, as implemented by Regulation (EC) No. 847/2000 provides that a drug can be designated as an orphan drug by the European Commission if its sponsor can establish that the product is intended for the diagnosis, prevention or treatment of: (1) a life-threatening or chronically debilitating condition affecting not more than five in ten thousand persons in the EU when the application is made; or (2) a life-threatening, seriously debilitating or serious and chronic condition in the EU and that without incentives it is unlikely that the marketing of the drug in the EU would generate sufficient return to justify the necessary investment. For either of these conditions, the applicant must demonstrate that there exists no satisfactory method of diagnosis, prevention or treatment of the condition in question that has been authorized in the EU or, if such method exists, the drug will be of significant benefit to those affected by that condition. Once authorized, orphan medicinal products are entitled to 10 years of market exclusivity in all EU Member States and a range of other benefits during the development and regulatory review process, including scientific assistance for study protocols, authorization through the centralized marketing authorization procedure covering all member countries, and a reduction or elimination of registration and marketing authorization fees. However, marketing authorization may be granted to a similar medicinal product with the same orphan indication during the 10-year period with the consent of the marketing authorization holder for the original orphan medicinal product or if the manufacturer of the original orphan medicinal product is unable to supply sufficient quantities. Marketing authorization may also be granted to a similar medicinal product with the same orphan indication if this product is safer, more effective or otherwise clinically superior to the original orphan medicinal product. The period of market exclusivity may, in addition, be reduced to six years if it can be demonstrated on the basis of available evidence that the original orphan medicinal product is sufficiently profitable not to justify maintenance of market exclusivity. Patent Term Extensions The European Union also provides for patent term extension through SPCs. The rules and requirements for obtaining a SPC are similar to those in the United States. An SPC may extend the term of a patent for up to five years after its originally scheduled expiration date and can provide up to a maximum of fifteen years of marketing exclusivity for a drug. In certain circumstances, these periods may be extended for six additional months if pediatric exclusivity is obtained. Although SPCs are available throughout the European Union, sponsors must apply on a country by country basis. Similar patent term extension rights exist in certain other foreign jurisdictions outside the European Union. Regulatory Requirements after a Marketing Authorization has been Obtained When an authorization for a medicinal product in the EU is obtained, the holder of the marketing authorization is required to comply with a range of requirements applicable to the manufacturing, marketing, promotion and sale of medicinal products. These include: • • The EU’s pharmacovigilance or safety reporting rules, which can impose post-authorization studies and additional monitoring obligations. The manufacturing of authorized medicinal products, for which a separate manufacturer’s license is mandatory, must also be conducted in strict compliance with the applicable EU laws, regulations and guidance, including Directive 2001/83/EC, Directive 2003/94/EC, Regulation (EC) No 726/2004 and the European Commission Guidelines for Good Manufacturing Practice. These requirements include compliance with EU cGMP standards when manufacturing 26 Table of Contents medicinal products and active pharmaceutical ingredients, including the manufacture of active pharmaceutical ingredients outside of the EU with the intention to import the active pharmaceutical ingredients into the EU. • The marketing and promotion of authorized drugs, including industry-sponsored continuing medical education and advertising directed toward the prescribers of drugs and/or the general public, are strictly regulated in the EU notably under Directive 2001/83EC, as amended, and EU Member State laws. Direct-to-consumer advertising of prescription medicines is prohibited across the EU. General Data Protection Regulation The collection, use, disclosure, transfer, or other processing of personal data regarding individuals in the EU, including personal health data, is subject to the EU General Data Protection Regulation, or GDPR, which became effective on May 25, 2018. The GDPR is wide-ranging in scope and imposes numerous requirements on companies that process personal data, including requirements relating to processing health and other sensitive data, obtaining consent of the individuals to whom the personal data relates, providing information to individuals regarding data processing activities, implementing safeguards to protect the security and confidentiality of personal data, providing notification of data breaches, and taking certain measures when engaging third-party processors. The GDPR also imposes strict rules on the transfer of personal data to countries outside the EU, including the United States, and permits data protection authorities to impose large penalties for violations of the GDPR, including potential fines of up to €20 million or 4% of annual global revenues, whichever is greater. The GDPR also confers a private right of action on data subjects and consumer associations to lodge complaints with supervisory authorities, seek judicial remedies, and obtain compensation for damages resulting from violations of the GDPR. Compliance with the GDPR will be a rigorous and time-intensive process that may increase the cost of doing business or require companies to change their business practices to ensure full compliance. In July 2020, the Court of Justice of the European Union, or the CJEU, invalidated the EU-U.S. Privacy Shield framework, one of the mechanisms used to legitimize the transfer of personal data from the EEA to the United States. The CJEU decision also drew into question the long-term viability of an alternative means of data transfer, the standard contractual clauses, for transfers of personal data from the EEA to the United States. Following the withdrawal of the U.K. from the EU, the U.K. Data Protection Act 2018 applies to the processing of personal data that takes place in the U.K. and includes parallel obligations to those set forth by GDPR. Pricing Decisions for Approved Products In the EU, pricing and reimbursement schemes vary widely from country to country. Some countries provide that products may be marketed only after a reimbursement price has been agreed. Some countries may require the completion of additional studies that compare the cost-effectiveness of a particular product candidate to currently available therapies or so-called health technology assessments, in order to obtain reimbursement or pricing approval. For example, the EU provides options for its Member States to restrict the range of products for which their national health insurance systems provide reimbursement and to control the prices of medicinal products for human use. Member States may approve a specific price for a product or it may instead adopt a system of direct or indirect controls on the profitability of the company placing the product on the market. Other Member States allow companies to fix their own prices for products, but monitor and control prescription volumes and issue guidance to physicians to limit prescriptions. Recently, many countries in the EU have increased the amount of discounts required on pharmaceuticals, and these efforts could continue as countries attempt to manage health care expenditures, especially in light of the severe fiscal and debt crises experienced by many countries in the EU. The downward pressure on health care costs in general, particularly prescription products, has become intense. As a result, increasingly high barriers are being erected to the entry of new products. Political, economic and regulatory developments may further complicate pricing negotiations, and there negotiations may continue after reimbursement has been obtained. Reference pricing used by various Member States, and parallel trade (i.e., arbitrage between low-priced and high-priced Member States), can further reduce prices. There can be no assurance that any country with price controls or reimbursement limitations for pharmaceutical products will allow favorable reimbursement and pricing arrangements for any products, if approved in those countries. Segment Reporting and Geographical Information We are engaged solely in the discovery and development of medicines in the field of cellular metabolism. Accordingly, we have determined that we operate in one operating segment. Our Scientific Advisors Scientific Advisors We have assembled a world-class scientific advisory board that includes renowned experts in cellular metabolism, drug discovery and translational medicine. These advisors work in close collaboration with our scientists to identify new research directions and accelerate our target validation and drug discovery programs. 27 Table of Contents Name Scott Biller, Ph.D. Lewis C. Cantley, Ph.D. Ralph Deberardinis, M.D., Ph.D. Tak W. Mak, Ph.D. Shin-San Michael Su, Ph.D. Marc Tessier-Lavigne, Ph.D. Craig B. Thompson, M.D. Matthew Vander Heiden, M.D., Ph.D. Employees and Human Capital Primary affiliation Former Chief Scientific Officer of Agios Pharmaceuticals The Cancer Center at Weill Cornell Medical College and New York-Presbyterian Hospital Children's Medical Center Research Institute at University of Texas Southwestern University of Toronto and the Campbell Family Institute for Breast Cancer Research Former Chief Scientific Officer of Decibel Therapeutics Stanford University Memorial Sloan-Kettering Cancer Center Koch Institute for Integrative Cancer Research at Massachusetts Institute of Technology As of December 31, 2021, we had 390 full-time employees and 2 part-time employees, all based in the United States and of which 120 held Ph.D., Pharm.D. or M.D. degrees. None of our employees are represented by a labor union or covered under a collective bargaining agreement. We also retain independent contractors to support the goals of our organization. We prioritize our employee experience and we are proud of our strong employee and contractor relations. We understand that attracting, retaining, engaging and supporting our talented team and maintaining a diverse and inclusive organization is critical to our success and our ability to increase the value we can provide for patients, shareholders and all stakeholders. We strive to cultivate a positive, respectful and fair work environment guided by the following three pillars: • • • Flexibility: We provide flexible work arrangements which results in happier, more engaged and more productive employees. We encourage a culture that promotes different perspectives, different work styles, health and wellness, care of families and productivity. Psychological safety: We aim to ensure our teams experience psychological safety – the belief that risk-taking and failure will not be punished, which leads to higher performing teams, more creativity, candor and better results. Deliberate development: We emphasize providing ongoing opportunities for employees to grow professionally, whether through bringing in external speakers, offering preceptorships in different departments, and providing tuition reimbursement and leadership skills training. To incentivize and reward strong performance, we have established a competitive and balanced compensation and benefits package, including short-term and long-term incentives, discretionary paid time off policy, generous parental and family leave plans and premium medical benefits. We are committed to fostering a welcoming and diverse workplace in which individuals from a variety of backgrounds can thrive. Our diversity and inclusion program focuses on valuing three types of differences: • • • Representative differences (demographic diversity, such as gender, race, ethnicity, sexual orientation) Experiential differences (identities based on life experiences that may change over time) Cognitive differences (unique ways of understanding and interpreting the world) We are a majority female organization and we maintain significant representation at all levels, including the Board of Directors. As of December 31, 2021, 59% of our workforce were women. Racial and ethnic diversity in the aggregate has improved at our company over the last few years. As of December 31, 2021, 30% of our workforce were ethnically diverse. However, we recognize that there is still important progress to be made, particularly as it relates to Black and Latino representation at our company, and this remains an area of continued emphasis for us. We regularly evaluate the effectiveness of our human capital management practices through employee surveys and fostering a culture of ongoing feedback and two-way dialogue. In addition, we track important human capital metrics such as turnover rate. Voluntary and involuntary turnover rates across all levels (executives/ senior managers, mid-level managers and professionals) are in alignment with, or lower than, the industry average. The COVID-19 pandemic evolved throughout 2021 and we continued to demonstrate our commitment to the health and wellbeing of our employees, our patients and our community. We regularly monitored local and national public health data and guidelines and adjusted our practices accordingly, while maintaining operational productivity. During 2021, we were able to eliminate our onsite testing requirements and temporarily relax our mask wearing policy. We also implemented a mandatory 28 Table of Contents vaccination policy for all employees, regardless of their role or work locations, subject to limited exceptions. Thoughtful management of our COVID-19 response continues to be a priority for our leadership team. We have continued the employee communication approach we implemented during 2020 with frequent virtual/hybrid meetings and the use of our dedicated intranet site to provide regular, transparent updates on the company’s COVID-19 response. We also implemented a new “Re-imagining Work” policy providing employees whose roles do not require an onsite or in field presence with an opportunity to choose the right working arrangement or them -- whether remote, hybrid with time split between home or the office, or primarily onsite in our Cambridge office. As we have continued to navigate the ever-changing environment of the pandemic, we believe our ability to embrace change and our long-standing culture of flexibility have helped us maintain productivity to deliver for patients. Our Corporate Information Our executive offices are located at 88 Sidney Street, Cambridge, Massachusetts 02139, and our telephone number is (617) 649-8600. Our website address is www.agios.com. References to our website are inactive textual references only and the content of our website should not be deemed incorporated by reference into this Form 10-K. Available Information Our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and any amendments to these reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, are available free of charge on our website located at www.agios.com as soon as reasonably practicable after they are filed with or furnished to the Securities and Exchange Commission, or SEC. These reports are also available at the SEC’s website at www.sec.gov. A copy of our Corporate Governance Guidelines, Code of Business Conduct and Ethics and the charters of the Audit Committee, Compensation Committee, and Nominating and Corporate Governance Committee are posted on our website, www.agios.com, under the heading “Corporate Governance” and are available in print to any person who requests copies by contacting us by calling (617) 649-8600 or by writing to Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139. 29 Table of Contents Item 1A. Risk Factors The following risk factors and other information included in this Annual Report on Form 10-K should be carefully considered. The risks and uncertainties described below are not the only risks and uncertainties we face. Additional risks and uncertainties not presently known to us or that we presently deem less significant may also impair our business operations. Please see page 1 of this Annual Report on Form 10-K for a discussion of some of the forward- looking statements that are qualified by these risk factors. If any of the following risks occur, our business, financial condition, results of operations and future growth prospects could be materially and adversely affected. Risks Related to the Discovery, Development, and Commercialization of our Products and Product Candidates If we do not successfully commercialize PYRUKYND and other products for which we receive approval, our prospects may be substantially harmed. In February 2022, we obtained marketing approval from the FDA for PYRUKYND® (mitapivat) for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States. PYRUKYND® is the first product for which we have received marketing approval following the sale of our oncology business to Servier in March 2021 and PYRUKYND® is the first product in our GDD portfolio that has received marketing approval. Our ability to generate revenue from PYRUKYND® will depend heavily on our successful development and commercialization of the product. The development and commercialization of PYRUKYND® could be unsuccessful if: • the medical community and third-party payors do not accept PYRUKYND® as safe, efficacious and cost-effective for the treatment of adults with PK deficiency; • we fail to maintain the necessary financial resources and expertise to manufacture, market and sell PYRUKYND®; • we fail to develop, implement and maintain effective marketing, sales and distribution strategies and operations for the development and commercialization of PYRUKYND®; • we fail to continue to develop, validate and maintain a commercially viable manufacturing process for PYRUKYND® that is compliant with current good manufacturing practices, or cGMP; • we fail to successfully obtain third party reimbursement and generate commercial demand that results in sales of PYRUKYND®; • • PYRUKYND® or any product candidate that we commercialize, may become subject to unfavorable pricing regulations and third-party reimbursement practices, which would harm our business. our efforts to commercialize PYRUKYND® are impeded by the effects of the COVID-19 pandemic; • we encounter any third-party patent interference, derivation, inter partes review, post-grant review, reexamination or patent infringement claims with respect to PYRUKYND®; • we fail to comply with regulatory and legal requirements applicable to the sale of PYRUKYND®; • competing drug products are approved for the same indications as PYRUKYND®; • we fail to approve marketing approval of PYRUKYND® in jurisdictions other than the United States; • new significant safety risks are identified; • we fail to gain and/or maintain sufficient market acceptance by physicians, patients, healthcare payors and others in the medical community; or, • • a significant number of eligible patients with PK deficiency do not end up being prescribed PYRUKYND® and, if they are, such patients do not stay on treatment; or PYRUKYND® does not demonstrate acceptable safety and efficacy in current or future clinical trials, or otherwise does not meet applicable regulatory standards for approval in indications other than currently approved indications. If we experience significant delays or an inability to successfully develop and commercialize PYRUKYND® our business would be materially harmed. We depend heavily on the success of our clinical product candidates, including our lead product candidate PYRUKYND® for use in indications other than PK deficiency and in other jurisdictions. Clinical trials of our product candidates may not be successful for a number of important reasons. If we or our collaborators are unable to commercialize our product candidates or experience significant delays in doing so, our business will be materially harmed. We have invested a significant portion of our efforts and financial resources in the identification of our product candidates and development of our most advanced clinical programs. Our ability to generate product revenue will depend heavily on the successful clinical development and eventual commercialization of our current and any future product candidates, including PYRUKYND® for use in indications other than PK deficiency and in jurisdictions outside of the United States. We have invested a significant portion of our efforts and financial resources in the identification of our product candidates and 30 Table of Contents development of our most advanced programs, including PYRUKYND®. In February 2022, the FDA approved PYRUKYND® for the treatment of hemolytic anemia in adults with PK deficiency in the United States. In June 2021, we submitted a MAA to the EMA for the treatment of adults with PK deficiency the European Union. We, and any collaborators, are not permitted to commercialize, market, promote or sell any product candidate in the United States without obtaining marketing approval from the FDA. Foreign regulatory authorities, such as the EMA, impose similar requirements in foreign jurisdictions. Before obtaining marketing approval from regulatory authorities for the sale of our product candidates, we must complete preclinical development and then conduct extensive clinical trials to demonstrate the safety and efficacy of our product candidates in humans. Clinical testing is expensive, difficult to design and implement, can take many years to complete and is uncertain as to outcome. We cannot guarantee that any clinical trials will be conducted as planned or completed on schedule, if at all. The clinical development of our product candidates is susceptible to the risk of failure inherent at any stage of product development. Moreover, we, or any collaborators, may experience any of a number of possible unforeseen adverse events in connection with clinical trials, many of which are beyond our control, including: • we, or our collaborators, may fail to demonstrate efficacy in a clinical trial or across a broad population of patients; • • • • • it is possible that even if one or more of our product candidates has a beneficial effect, that effect will not be detected during clinical evaluation as a result of one or more of a variety of factors, including the size, duration, design, measurements, conduct or analysis of our clinical trials. Conversely, as a result of the same factors, our clinical trials may indicate an apparent positive effect of a product candidate that is greater than the actual positive effect, if any. For example, many compounds that initially showed promise in earlier stage testing for treating specific disease indications have later been found to cause side effects that prevented further development of the compound; our product candidates may have undesirable side effects or other unexpected characteristics or otherwise expose participants to unacceptable health risks, causing us, our collaborators or our investigators, regulators or institutional review boards or the data safety monitoring board for such trial to halt, delay, interrupt, suspend or terminate the trials or cause us, or any collaborators, to abandon development or limit development of that product candidate to certain uses or subpopulations in which the undesirable side effects or other characteristics are less prevalent, less severe or more acceptable from a risk-benefit perspective; if our product candidates have undesirable side effects, it could result in a more restrictive label, or it could result in the delay or denial of marketing approval by the FDA or comparable foreign regulatory authorities; clinical trials of our product candidates may produce negative or inconclusive results, and we, or our collaborators, may decide, or regulators may require us, to conduct additional clinical trials, including testing in more subjects, or abandon product development programs; regulators or institutional review boards may not authorize us, our collaborators or our investigators to commence a clinical trial or conduct a clinical trial at a prospective trial site; • we or our collaborators may have delays in reaching or fail to reach agreement on acceptable clinical trial contracts or clinical trial protocols with prospective trial sites; • • • • • the number of patients required for clinical trials of our product candidates may be larger than we anticipate; enrollment in these clinical trials, which may be particularly challenging for some of the orphan diseases we target in our GDD programs, may be slower than we anticipate; or participants may drop out of these clinical trials at a higher rate than we anticipate; third-party contractors used by us or our collaborators may fail to comply with regulatory requirements or meet their contractual obligations in a timely manner, or at all; significant preclinical study or clinical trial delays could shorten any periods during which we, or any collaborators, may have the exclusive right to commercialize our product candidates or allow our competitors, or the competitors of any collaborators, to bring products to market before we, or any collaborators, do; the cost of clinical trials of our product candidates may be greater than anticipated; and, the supply or quality of our product candidates or other materials necessary to conduct clinical trials of our product candidates may be insufficient or inadequate. In December 2016, we withdrew our IND for AG-519, our second PKR activator, following verbal notification of a clinical hold from the FDA relating to a previously disclosed case of drug-induced cholestatic hepatitis which occurred in our phase 1 clinical trial of AG-519 in healthy volunteers. Although these decisions and this hepatic adverse event finding do not affect our ongoing clinical trials for PYRUKYND®, our first PKR activator, we cannot provide any assurances that there will not be similar or other treatment-related severe adverse events in our other clinical trials of PYRUKYND®, that our other trials will not be placed on clinical hold in the future, or that patient recruitment for our other trials will not be adversely impacted. 31 Table of Contents Our failure to successfully begin and complete clinical trials of our product candidates and to demonstrate the efficacy and safety necessary to obtain regulatory approval to market any of our product candidates could result in additional costs to us, or any collaborators, would impair our ability to generate revenue from product sales, regulatory and commercialization milestones and royalties and would significantly harm our business. We may not be successful in our efforts to identify or discover potential product candidates or to develop medicines of commercial value and we may not achieve our goals included in our strategic vision. A key element of our strategy is to identify and test compounds that target cellular metabolism and adjacent areas of biology in a variety of different types of GDDs. A significant portion of the research that we are conducting involves new compounds and drug discovery methods, including our proprietary technology. The drug discovery that we are conducting using our proprietary technology may not be successful in identifying compounds in our therapeutic areas. In addition, our research programs may initially show promise in identifying potential product candidates, yet fail to yield product candidates for clinical development for a number of reasons, including: • • the research methodology used may not be successful in identifying appropriate biomarkers or potential product candidates; or potential product candidates may, on further study, be shown to have harmful side effects or other characteristics that indicate that they are unlikely to be medicines that will receive marketing approval and achieve market acceptance. Research programs to identify new product candidates require substantial technical, financial and human resources. We may choose to focus our efforts and resources on a potential product candidate that ultimately proves to be unsuccessful. If we are unable to identify suitable compounds for preclinical and clinical development, or any medicines we develop do not effectively correct metabolic pathways or alter the metabolic state of immune cells, we will not be able to achieve our strategic vision and our specific long-term goals and will not be able generate product revenue in future periods, which likely would result in significant harm to our financial position and adversely impact our stock price. The COVID-19 pandemic has and may continue to affect our ability to initiate or continue our planned, ongoing and future clinical trials, disrupt regulatory activities, disrupt our ability to maintain a commercial infrastructure for our product or have other adverse effects on our business and operations. In addition, this pandemic may continue to adversely impact economies worldwide, which could result in adverse effects on our business and operations. In response to the COVID-19 pandemic, we were temporarily required to close our facilities except for a limited number of essential facilities and laboratory staff. Our Cambridge office reopened, with appropriate safety precautions in place that are aligned with local and CDC advisements. Operations have maintained productivity, while allowing employees who prefer to work onsite all or some of the time. Additionally, our field-based employees engage with healthcare providers and other third parties remotely and, where local regulations allow, on a limited in-person basis. In November 2021, we began requiring all employees, regardless of role or work location, to be fully vaccinated against COVID-19, as defined by CDC guidelines, subject to limited exceptions. We may face disruptions that may affect our ability to initiate and complete clinical trials including disruptions in procuring items that are essential for our research and development activities, including, for example, raw materials used in the manufacturing of our product candidates and laboratory supplies for planned and ongoing clinical trials, in each case, for which there may be shortages because of ongoing efforts to address the outbreak. We have enrolled, and seek to enroll, patients in our clinical trials at sites located both in the United States and internationally. Site initiation, participant recruitment and enrollment, participant dosing, distribution of clinical trial materials, study monitoring and data analysis has been and may continue to be paused or delayed due to changes in hospital or university policies, federal, state or local regulations, prioritization of hospital resources toward pandemic efforts, or other reasons related to the pandemic. We have faced and may continue to face difficulties recruiting or retaining patients in our ongoing clinical trials because of the pandemic. Patients enrolled in our clinical trials may be unable or unwilling to visit clinical trial sites which may impact the collection of important clinical trial data and has, and may continue to, necessitate remote data verification. In addition, limitations in the ability to visit sites has affected, and may continue to affect, our enrollment timelines for our clinical trials, and may adversely affect the timing of completion of our clinical trials or our ability to complete clinical trials in a fully compliant manner. Additionally, the potential suspension of clinical trial activity at clinical trial sites may have an adverse impact on our clinical trial plans and timelines. We have faced and may continue to face disruptions in our ability to prepare and submit applications to regulatory authorities for drug approvals and to build and maintain a commercial infrastructure for our product and product candidates. We may face manufacturing disruptions or disruptions related to the ability to obtain necessary institutional review board or other necessary site approvals, as well as other delays at clinical trial sites. 32 Table of Contents The response to the COVID-19 pandemic may redirect resources with respect to regulatory and intellectual property matters in a way that would adversely impact our ability to progress regulatory approvals and protect our intellectual property. In addition, we may face impediments to regulatory meetings and approvals due to measures intended to limit in-person interactions. The COVID-19 pandemic may continue to significantly impact economies and financial markets worldwide, which could result in adverse effects on our business and operations, impact our ability to raise additional funds through public offerings and impact the volatility of our stock price and trading in our stock. We cannot be certain what the overall impact of the COVID-19 pandemic will be on our business in the future and a continuation of the pandemic has the potential to adversely affect our business, financial condition, results of operations, and prospects. If we experience delays or difficulties in the enrollment of patients in clinical trials, our receipt of necessary regulatory approvals could be delayed or prevented. We or our collaborators may not be able to initiate, continue or complete clinical trials for our product candidates if we or they are unable to locate and enroll a sufficient number of eligible patients to participate in these trials as required by the FDA or analogous regulatory authorities outside the United States. Furthermore, enrollment has been and may continue to be particularly challenging in light of the ongoing COVID-19 pandemic and even more so for some of the orphan diseases we target in our GDD programs. Patient enrollment is also affected by other factors including: • • • • • • • • prevalence and severity of the disease under investigation; availability and efficacy of approved medications for the disease under investigation; eligibility criteria for the study in question; perceived risks and benefits of the product candidate under study; efforts to facilitate timely enrollment in clinical trials; patient referral practices of physicians; the ability to monitor patients adequately during and after treatment; and proximity and availability of clinical trial sites for prospective patients. Utilizing our precision medicine approach, we generally focus our development activities on genetically or biomarker defined patients most likely to respond to our therapies. As a result, the potential patient populations for our clinical trials are narrowed, and we may experience difficulties in identifying and enrolling a sufficient number of patients in our clinical trials. In addition, some of our competitors may have ongoing or planned clinical trials for product candidates that would treat the same indications as our product candidates, and patients who would otherwise be eligible for our clinical trials may instead enroll in clinical trials of our competitors’ product candidates. For example, Rocket Pharma LTD, or Rocket Pharma, is developing a gene therapy targeting PK deficiency; Vertex Pharmaceuticals Incorporated, or Vertex, is developing a gene therapy targeting SCD; IMARA Inc., or IMARA, and Forma Therapeutics Holdings, Inc., or Forma, are developing molecules for the treatment of beta thalassemia and SCD; Global Blood Therapeutics is developing molecules for the treatment of SCD; Fibrogen, Inc. is developing Roxadustat for the treatment of anemia in MDS patients; and Geron Corporation is developing imetelstat for the treatment of low-risk MDS. Roivant Sciences is developing RVT-2001 (licensed from Eisai Co., Ltd.) for the treatment of transfusion-dependent anemia in patients with lower-risk MDS. Competition for eligible patients may make it particularly difficult for us to enroll a sufficient number of patients to complete our clinical trials for our product candidates in a timely and cost-effective manner. We rely on contract research organization, or CROs, and clinical trial sites to ensure the proper and timely conduct of our clinical trials and while we have agreements governing their committed activities, we have limited influence over their actual performance. Our or our collaborators’ inability to enroll a sufficient number of patients for our clinical trials would result in significant delays or may require us to abandon one or more clinical trials altogether. Enrollment delays in our clinical trials may result in increased development costs for our product candidates, which would cause the value of our company to decline and limit our ability to obtain additional financing. Results of preclinical studies and early clinical trials may not be predictive of results of later-stage clinical trials. The outcome of preclinical studies and early clinical trials may not be predictive of the success of later clinical trials, and interim results of clinical trials do not necessarily predict success in future clinical trials. Many companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in late-stage clinical trials after achieving positive results in earlier stages of development, and we could face similar setbacks. The design of a clinical trial can determine whether its results will support approval of a product and flaws in the design of a clinical trial may not become apparent until the clinical trial is well advanced. In addition, preclinical and clinical data are often susceptible to varying interpretations and analyses. Many companies that believed their product candidates performed satisfactorily in preclinical studies and clinical trials have 33 Table of Contents nonetheless failed to obtain marketing approval for the product candidates. Even if we, or any collaborators, believe that the results of clinical trials for our product candidates warrant marketing approval, the FDA or comparable foreign regulatory authorities may disagree and may not grant marketing approval of our product candidates. In some instances, there can be significant variability in safety or efficacy results between different clinical trials of the same product candidate due to numerous factors, including changes in trial procedures set forth in protocols, differences in the size and type of the patient populations, changes in and adherence to the dosing regimen and other clinical trial protocols and the rate of dropout among clinical trial participants. While we obtained marketing approval of PYRUKYND® for the treatment of [adults with PK deficiency] in the United States, we cannot be certain that we will obtain marketing approval of PYRYKYND® in other indications. The results of clinical trials of PYRUKYND® for the treatment of PK deficiency do not predict that PYRUKYND® will be efficacious in our ongoing clinical trials in other indications. If we fail to receive positive results in clinical trials of our product candidates, the development timeline and regulatory approval and commercialization prospects for our most advanced product candidates, and, correspondingly, our business and financial prospects would be negatively impacted. We may expend our limited resources to pursue a particular product candidate or indication and fail to capitalize on product candidates or indications that may be more profitable or for which there is a greater likelihood of success. Because we have limited financial and managerial resources, we focus on research programs and product candidates that we identify for specific indications. As a result, we may forego or delay pursuit of opportunities with other product candidates or for other indications that later prove to have greater commercial potential. Our resource allocation decisions may cause us to fail to capitalize on viable commercial medicines or profitable market opportunities. Our spending on current and future research and development programs and product candidates for specific indications may not yield any commercially viable medicines. If we do not accurately evaluate the commercial potential or target market for a particular product candidate, we may relinquish valuable rights to that product candidate through collaboration, licensing or other royalty arrangements in cases in which it would have been more advantageous for us to retain sole development and commercialization rights to such product candidate. Even if any of our product candidates receives marketing approval, we or others may later discover that the product is less effective than previously believed or causes undesirable side effects that were not previously identified, which could compromise our ability, or that of any collaborators, to market the product. It is possible that our clinical trials, or those of any collaborators, may indicate an apparent positive effect of a product candidate that is greater than the actual positive effect, if any, or alternatively fail to identify undesirable side effects. If, following approval of a product candidate, including PYRUKYND®, we, or others, discover that the product is less effective than previously believed or causes undesirable side effects that were not previously identified, any of the following adverse events could occur: • regulatory authorities may withdraw their approval of the product or seize the product; • we, or any collaborators, may be required to recall the product, change the way the product is administered or conduct additional clinical trials; • additional restrictions may be imposed on the marketing of, or the manufacturing processes for, the particular product; • we may be subject to fines, injunctions or the imposition of civil or criminal penalties; • regulatory authorities may require the addition of labeling statements; • we, or any collaborators, may be required to create a Medication Guide outlining the risks of the previously unidentified side effects for distribution to patients; • we, or any collaborators, could be sued and held liable for harm caused to patients; • • the product may become less competitive; and our reputation may suffer. PYRUKYND®, or any of our product candidates that may receive marketing approval in the future, may fail to achieve the degree of market acceptance by physicians, patients, healthcare payors and others in the medical community necessary for commercial success. PYRUKYND®, or any of our product candidates that may receive marketing approval in the future, may fail to gain and/or maintain sufficient market acceptance by physicians, patients, healthcare payors and others in the medical community. If PYRUKYND® or any of our product candidates, if approved, do not achieve an adequate level of acceptance, we may not generate significant product revenue and we may not become profitable. The degree of market acceptance of PYRUKYND® and any of our product candidates, if approved for commercial sale, will depend on a number of factors, including: • efficacy and potential advantages compared to alternative treatments; 34 Table of Contents • • • • • • • the ability to offer our medicines for sale at competitive prices; convenience and ease of administration compared to alternative treatments; the willingness of the target patient population to try new therapies and of physicians to prescribe these therapies; ensuring uninterrupted product supply; the strength of marketing and distribution support; sufficient third-party coverage or reimbursement; and the prevalence and severity of any side effects. If we are unable to establish and maintain sales and marketing capabilities or enter into agreements with third parties to sell and market our product candidates, we may not be successful in commercializing PYRUKYND® or our product candidates if they are approved. We have limited experience in the sale, marketing or distribution of pharmaceutical products. To achieve commercial success for approved medicines for which we retain sales and marketing responsibilities, we must either develop a sales and marketing organization or outsource these functions to other third parties. Although we had established sales and marketing capabilities to support our co-promotion efforts for IDHIFA® and our sales of TIBSOVO® prior to the sale of our oncology business to Servier, we are again in the process of building our sales and marketing infrastructure to commercially launch and sell PYRUKYND® for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States. We may need to further build our sales and marketing infrastructure to commercialize PYRUKYND® in other indications or outside of the United States or to commercialize any of our other product candidates for which we obtain marketing approval. There are risks involved with both establishing our own sales and marketing capabilities and entering into arrangements with third parties to perform these services. For example, recruiting and training a sales force is expensive and time consuming and could delay any product launch. If the commercial launch of a product candidate for which we recruit a sales force and establish marketing capabilities is delayed or does not occur for any reason, we would have prematurely or unnecessarily incurred these commercialization expenses. This may be costly, and our investment would be lost if we cannot retain or reposition our sales and marketing personnel. Factors that may inhibit our efforts to commercialize our medicines on our own include: • • • • our inability to recruit and retain adequate numbers of effective sales and marketing personnel; the inability of sales personnel to obtain access to physicians or persuade adequate numbers of physicians to prescribe any future medicines; the lack of complementary medicines to be offered by sales personnel, which may put us at a competitive disadvantage relative to companies with more extensive product lines; and unforeseen costs and expenses associated with creating an independent sales and marketing organization. If we enter into arrangements with third parties to perform sales, marketing and distribution services, our product revenue or the profitability of product revenue to us are likely to be lower than if we were to market and sell any medicines that we develop ourselves. In addition, we may not be successful in entering into arrangements with third parties to sell and market our product candidates or may be unable to do so on terms that are favorable to us. We likely will have little control over such third parties, and any of them may fail to devote the necessary resources and attention to sell and market our medicines effectively. If we do not establish sales and marketing capabilities successfully, either on our own or in collaboration with third parties, we will not be successful in commercializing PYRUKYND® or any of our product candidates for which we obtain marketing approval. We face substantial competition, which may result in others discovering, developing or commercializing products before or more successfully than we do. We face competition with respect to PYRUKYND® and our current product candidates, and we and our collaborators will face competition with respect to any product candidates that we or they may seek to develop or commercialize in the future. Potential competitors include major pharmaceutical companies, specialty pharmaceutical companies, biotechnology companies, academic institutions, government agencies and other public and private research organizations that conduct research, seek patent protection and establish collaborative arrangements for research, development, manufacturing and commercialization. There are a number of large pharmaceutical and biotechnology companies that currently market and sell products or are pursuing the development of products for the treatment of the disease indications for which we are developing our product or our product candidates, such as PK deficiency, thalassemia, SCD and L-IR MDS. For example, Acceleron Pharma Inc. (in collaboration with Bristol-Myers Squibb Company) and bluebird bio, Inc., or bluebird, are each marketing therapies to treat beta thalassemia, Novartis International AG, Emmaus Life Sciences and Global Blood Therapeutics are each marketing 35 Table of Contents therapies to treat SCD, Rocket Pharma is conducting a clinical trial of a gene therapy targeting PK deficiency, and a number of other biotechnology companies have product candidates in clinical development in similar indications as ours. There are a variety of treatment options available, including a number of marketed enzyme replacement therapies, for treating patients with GDDs. In addition to currently marketed therapies, there are also a number of products that are either enzyme replacement therapies, gene therapies or PK activators in various stages of clinical development to treat GDDs. These products in development may provide efficacy, safety, convenience and other benefits that are not provided by currently marketed therapies or for which there are no approved treatments. As a result, they may provide significant competition for any of our product candidates for which we obtain marketing approval. There are also a number of product candidates in preclinical or clinical development by third parties to treat GDDs by targeting similar mechanisms of action as our product candidates. These companies include large pharmaceutical companies, such as Novartis, as well as biotechnology companies of various sizes, such as BioMarin Pharmaceutical Inc., bluebird, Forma, IMARA, PTC Therapeutics, Inc., Rocket Pharma, and Vertex. Our competitors may develop products that are more effective, safer, more convenient or less costly than PYRUKYND® or any product candidates that we are developing or that would render PYRUKYND® or our product candidates obsolete or non-competitive. In addition, our competitors may discover biomarkers that more efficiently measure metabolic pathways than our methods, which may give them a competitive advantage in developing potential products. Our competitors may also obtain marketing approval from the FDA or other regulatory authorities for their products more rapidly than we may obtain approval for ours, which could result in our competitors establishing a strong market position before we are able to enter the market. Many of our competitors have significantly greater financial resources and expertise in research and development, manufacturing, preclinical testing, conducting clinical trials, obtaining regulatory approvals and marketing approved products than we do. Mergers and acquisitions in the pharmaceutical and biotechnology industries may result in even more resources being concentrated among a smaller number of our competitors. Smaller and clinical stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. These third parties compete with us in recruiting and retaining qualified scientific and management personnel, establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs. If the FDA does not grant our products, if and when approved, appropriate periods of data exclusivity before approving generic or follow-on versions of our products, the sales of our products could be adversely affected. With FDA approval of an NDA, the product covered by the application is specified as a “reference-listed drug” in the FDA’s publication, “Approved Drug Products with Therapeutic Equivalence Evaluations,” or the Orange Book. Manufacturers may seek approval of generic versions of reference-listed drugs through submission of abbreviated new drug applications, or ANDAs, in the United States. In support of an ANDA, a generic manufacturer need not conduct clinical trials. Rather, the applicant generally must show that its product has the same active ingredient(s), dosage form, strength, route of administration and conditions of use or labeling as the reference-listed drug and that the generic version is bioequivalent to the reference-listed drug, meaning it is absorbed in the body at the same rate and to the same extent. Generic products may be significantly less costly to bring to market than the reference-listed drug and companies that produce generic products are generally able to offer them at lower prices. Thus, following the introduction of a generic drug, a significant percentage of the sales of any reference-listed drug may be typically lost to the generic product. A manufacturer may also submit an NDA under section 505(b)(2) of the Federal Food, Drug and Cosmetic Act, or FDCA, that references the FDA’s prior approval of the innovator product or preclinical studies and/or clinical trials that were not conducted by, or for, the applicant and for which the applicant has not obtained a right of reference. A 505(b)(2) NDA product, or follow-product, may be for a new or improved version of the original reference listed drug. The FDA may not approve an ANDA or 505(b)(2) NDA until any applicable period of non-patent exclusivity for the reference-listed drug has expired. The FDCA provides a period of five years of new chemical entity exclusivity for a new drug containing a new active moiety. Specifically, in cases where such exclusivity has been granted, an ANDA or a 505(b)(2) NDA may not be filed with the FDA until the expiration of five years unless the submission is accompanied by a Paragraph IV certification that a patent covering the reference-listed drug is either invalid or will not be infringed by the generic product, in which case the applicant may submit its application four years following approval of the reference-listed drug. The FDCA also provides a period of three years of new clinical investigation data exclusivity in connection with the approval of a supplemental indication for the product for which a clinical trial is deemed by the FDA as essential for approval. In the event that a generic or follow-on manufacturer is somehow able to obtain FDA approval without adherence to these periods of data exclusivity, the competition that our approved products may face from generic and follow-on versions could 36 Table of Contents negatively impact our future revenue, profitability and cash flows and substantially limit our ability to obtain a return on our investments in those product candidates. In addition, if there are patents listed for our drug products in the Orange Book, ANDAs and 505(b)(2) NDAs would be required to include a certification as to each listed patent indicating whether the applicant intends to challenge the patent. We cannot predict which, if any, patents in our current portfolio or patents we may obtain in the future will be eligible for listing in the Orange Book, how any generic or follow-on competitor would address such patents, whether we would sue on any such patents or the outcome of any such suit. Product liability lawsuits against us or any collaborators could cause us or our collaborators to incur substantial liabilities and could limit commercialization of any medicines that we or they may develop. We and any collaborators face a risk of product liability exposure related to our product candidates in human clinical trials and face an even greater risk as we or they commercially sell any medicines, including PYRUKYND®. If we or any collaborators cannot successfully defend ourselves or themselves against claims that our product candidates or medicines caused injuries, we or they could incur substantial costs and liabilities. Regardless of merit or eventual outcome, liability claims may also result in, among other thing, decreased demand for any product candidates or medicines that we may develop, reputational harm and lost revenue. Although we maintain product liability insurance coverage, it may not be adequate to cover all liabilities that we may incur. Our internal computer systems, or those of any third parties with which we contract, may fail or suffer security breaches, which could result in a material disruption of our product development programs. Despite the implementation of security measures, our internal computer systems and those of third parties with which we contract are vulnerable to damage from computer viruses, worms and other destructive or disruptive software, unauthorized access, natural disasters, terrorism, war and telecommunication and electrical failures. Such systems are also vulnerable to service interruptions or to security breaches from inadvertent or intentional actions by our employees, third-party vendors and/or business partners, or from cyber incidents by malicious third parties. Cyber incidents are increasing in their frequency, sophistication and intensity, and have become increasingly difficult to detect. Cyber incidents could include the deployment of harmful malware, ransomware, denial-of-service attacks, unauthorized access to or deletion of files, social engineering and other means to affect service reliability and threaten the confidentiality, integrity and availability of information. Cyber incidents also could include phishing attempts or e-mail fraud to cause payments or information to be transmitted to an unintended recipient. We could be subject to risks caused by misappropriation, misuse, leakage, falsification or intentional or accidental release or loss of information maintained in the information systems and networks of our company, including personal information of our employees. System failures, accidents, cyber incidents or security breaches could cause interruptions in our operations, and could result in a material disruption of our clinical and commercialization activities and business operations, whether due to a loss of our trade secrets or other proprietary information or other similar disruptions, in addition to possibly requiring substantial expenditures of resources to remedy. For example, the loss of clinical trial data from completed or future trials could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the data. To the extent that any disruption or security breach were to result in a loss of, or damage to, our data or applications, or inappropriate disclosure of confidential or proprietary information, we could incur liability, our competitive position could be harmed and our product research, development and commercialization efforts could be delayed. In addition, we may not have adequate insurance coverage to provide compensation for any losses associated with such events. If a material breach of our security or that of our vendors occurs, the market perception of the effectiveness of our security measures could be harmed, we could lose business and our reputation and credibility could be damaged. We could be required to expend significant amounts of money and other resources to repair or replace information systems or networks. Although we develop and maintain systems and controls designed to prevent these events from occurring, and we have a process to identify and mitigate threats, the development and maintenance of these systems, controls and processes is costly and requires ongoing monitoring and updating as technologies change and efforts to overcome security measures become more sophisticated. Moreover, despite our efforts, the possibility of these events occurring cannot be eliminated entirely. Compliance with global privacy and data security requirements could result in additional costs and liabilities to us or inhibit our ability to collect and process data globally, and the failure to comply with such requirements could subject us to significant fines and penalties, which may have a material adverse effect on our business, financial condition or results of operations. The regulatory framework for the collection, use, safeguarding, sharing, transfer and other processing of information worldwide is rapidly evolving and is likely to remain uncertain for the foreseeable future. Globally, virtually every jurisdiction in which we operate has established its own data security and privacy frameworks with which we must comply. For example, the collection, use, disclosure, transfer, or other processing of personal data regarding individuals in the EU, including personal health data, is 37 Table of Contents subject to EU General Data Protection Regulation, or the GDPR, which applies to all member states of the European Economic Area, or EEA. The GDPR is wide-ranging in scope and imposes numerous requirements on companies that process personal data. The GDPR imposes significant obligations on us with respect to clinical trials conducted in the EEA. In addition, the GDPR also imposes strict rules on the transfer of personal data to countries outside the EU, including the United States and, as a result, increases the scrutiny that clinical trial sites located in the EEA should apply to transfers of personal data from such sites to countries that are considered to lack an adequate level of data protection, such as the United States. The GDPR also permits data protection authorities to require destruction of improperly gathered or used personal information and/or impose substantial fines for violations of GDPR, and it also confers a private right of action on data subjects and consumer associations to lodge complaints with supervisory authorities, seek judicial remedies and obtain compensation for damages resulting from violations of GDPR. In addition, the GDPR provides that EU member states may make their own further laws and regulations limiting the processing of personal data, including genetic, biometric or health data. Given the breadth and depth of changes in data protection obligations, preparing for and complying with the GDPR’s requirements is rigorous and time intensive and requires significant resources and a review of our technologies, systems and practices, as well as those of any third-party collaborators, service providers, contractors or consultants that process or transfer personal data collected in the EU. The GDPR and other changes in laws or regulations associated with the enhanced protection of certain types of sensitive data, such as healthcare data or other personal information from our clinical trials, could require us to change our business practices and put in place additional compliance mechanisms, may interrupt or delay our development, regulatory and commercialization activities and increase our cost of doing business, and could lead to government enforcement actions, private litigation and significant fines and penalties against us and could have a material adverse effect on our business, financial condition or results of operations. Similarly, failure to comply with federal and state laws regarding privacy and security of personal information could expose us to fines and penalties under such laws. Even if we are not determined to have violated these laws, government investigations into these issues typically require the expenditure of significant resources and generate negative publicity, which could harm our reputation and our business. Similar privacy and data security requirements are either in place or underway in the United States. There are a broad variety of data protection laws that are applicable to our activities, and a wide range of enforcement agencies at both the state and federal levels that can review companies for privacy and data security concerns based on general consumer protection laws. The Federal Trade Commission and state Attorneys General all are aggressive in reviewing privacy and data security protections for consumers. New laws also are being considered at both the state and federal levels. For example, the California Consumer Privacy Act, which went into effect on January 1, 2020, is creating similar risks and obligations as those created by GDPR, though the California Consumer Privacy Act does exempt certain information collected as part of a clinical trial subject to the Federal Policy for the Protection of Human Subjects (the Common Rule). Many other states are considering similar legislation. A broad range of legislative measures also have been introduced at the federal level. Accordingly, failure to comply with current and any future federal and state laws regarding privacy and security of personal information could expose us to fines and penalties. We also face a threat of consumer class actions related to these laws and the overall protection of personal data. Even if we are not determined to have violated these laws, government investigations into these issues typically require the expenditure of significant resources and generate negative publicity, which could harm our reputation and our business. Risks Related to Our Financial Position We face new challenges as a smaller, less diversified company following the sale of our oncology business to Servier. Following the sale of our oncology business to Servier in March 2021, we have focused our resources and efforts on product and product candidates for the treatment of GDDs. The success of the GDD business is subject to various risks and uncertainties, including the possibility that we may not be able to successfully commercialize PYRUKYND®, which only recently was approved by the FDA for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States, the possibility of adverse clinical and other developments in respect of PYRUKYND® or our other product candidates of the GDD business, and unanticipated changes in applicable laws and regulations that may adversely affect the GDD business. We developed most of our initial products and product candidates for the treatment of various types of cancer. The sale of our oncology business to Servier, including our approved products at the time of sale, TIBSOVO® and IDHIFA®, has resulted in us being a smaller, less diversified company with a more limited business concentrated on products and product candidates for the treatment of GDDs. As a result, we may be more susceptible to changing market conditions, including fluctuations and risks particular to the markets for patients with GDDs, than a more diversified company, which could adversely affect our business, financial condition and results of operations. In addition, even with the FDA approval of PYRUKYND® the diversification of our revenues, costs and cash flows has diminished following the transaction. Our results of operations, cash flows, working capital and financing requirements may be subject to increased volatility and our ability to fund capital expenditures and investments or satisfy other financial commitments may be diminished. 38 Table of Contents We have broad discretion as to the use of the proceeds from the sale of our oncology business to Servier, and we may not use the proceeds effectively. We have broad discretion with respect to the use of proceeds of the sale of our oncology business to Servier. The results and effectiveness of the use of proceeds, including the repurchase of shares of our common stock, are uncertain, and we could spend the proceeds in ways that do not improve our remaining business, financial condition or results of operations. Our failure to apply these funds effectively could have an adverse effect on its business, financial condition and results of operations. Raising additional capital may cause dilution to our stockholders, restrict our operations or require us to relinquish rights to our technologies or product candidates. Until such time, if ever, as we can generate substantial product revenue, including from sales of PYRUKYND®, we expect to finance our cash needs primarily through cash on hand, royalty payments from Servier with respect to U.S. net sales of TIBSOVO®, a potential milestone payment from Servier if vorasidenib is approved by the FDA and, potentially, collaborations, strategic alliances, licensing arrangements and other nondilutive strategic transactions. In addition, in connection with potential future strategic transactions, we may pursue opportunistic debt offerings, and equity or equity-linked offerings. We do not have any committed external source of funds other than the potential milestone and royalty payments that we are eligible to receive under our purchase agreement with Servier. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interest of our stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our common stockholders. Debt financing, if available, may require us to enter into agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends. In addition, securing financing could require a substantial amount of time and attention from our management and may divert a disproportionate amount of their attention away from day-to-day activities, which may adversely affect our management’s ability to oversee the development of our product candidates. If we raise funds through collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or to grant licenses on terms that may not be favorable to us. If our existing capital is insufficient to execute our operating plan through major catalysts and to cash-flow positivity, we will need to raise capital, and if we are unable to raise capital when needed, we would be forced to delay, reduce or eliminate our product development programs or commercialization efforts. We expect to incur significant expenses as we continue to advance our ongoing activities. We expect to execute our operating plan through major catalysts and to cash-flow positivity without the need to raise additional equity. Our estimate as to how long we expect our existing cash, cash equivalents, and marketable securities to be available to fund our operating plan is based on assumptions that may prove to be wrong, and we could use our available capital resources sooner than we currently expect. Further, changing circumstances, some of which may be beyond our control, could cause us to consume capital significantly faster than we currently anticipate, and we may need to seek additional funds. Our future capital requirements will depend on many factors, including: • • • • • • • • • • • the amount and timing of revenue received from commercial sales of PYRUKYND® and any of our other product candidates for which we may receive marketing approval; the amount of contingent consideration we ultimately receive in connection with the sale of our oncology business to Servier; the costs and timing of our ongoing commercialization activities, including product manufacturing, sales, marketing and distribution, for PYRUKYND® for the treatment of [adults with PK deficiency]; the scope, progress, results and costs of drug discovery, preclinical development, laboratory testing and clinical trials for our product candidates; the costs, timing and outcome of regulatory review of our product candidates; the costs of preparing, filing and prosecuting patent applications, maintaining and enforcing our intellectual property rights and defending intellectual property-related claims; the costs and timing of future commercialization activities, including product manufacturing, sales, marketing and distribution, for any of our product candidates for which we may receive marketing approval; our ability to establish and maintain collaborations on favorable terms, if at all; our ability to successfully execute on our strategic plans; operational delays due to the COVID-19 pandemic; and the extent to which we acquire or in-license, or monitor or out-license, other medicines and technologies. 39 Table of Contents We have historically incurred operating losses. We expect to incur losses in the future and may never achieve or maintain profitability. We have a history of incurring operating losses. Our net income for the year ended December 31, 2021 was $1,604.7 million and our net losses for the years ended December 31, 2020 and 2019 were $327.4 million and $411.5 million, respectively. As of December 31, 2021, we had an accumulated deficit of $238.8 million. Prior to the sale of our oncology business to Servier, we had generated only modest revenue from sales of TIBSOVO® and, prior to our sale to Royalty Pharma of our royalty rights to IDHIFA®, from royalties on sales of IDHIFA®. We have only recently obtained marketing approval and have begun to commercialize PYRUKYND® for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States. PYRUKYND® is the first product we have received marketing approval for following the sale of our oncology business, including approved products TIBSOVO® and IDHIFA®, to Servier in March 2021. We have neither obtained marketing approval for PYRUKYND® in any other indications or for any indication outside of the United States nor have we obtained marketing approval for any of our other product candidates, all of which are in preclinical or clinical development stages. In June 2021, we submitted a MAA for PYRUKYND® in adults with PK deficiency to the EMA. Prior to the sale of our oncology business to Servier, we financed our operations primarily through public offerings of our common stock and our collaboration agreements with Celgene and have devoted substantially all of our efforts to research and development. Following the sale of our oncology business to Servier on March 31, 2021, we have financed and expect to finance our operations primarily through cash on hand, royalty payments from Servier with respect to U.S. net sales of TIBSOVO®, a potential milestone payment from Servier if vorasidenib is approved by the FDA, potential sales of PYRUKYND® and, potentially, collaborations, strategic alliances, licensing arrangements and other nondilutive strategic transactions. We expect to continue to incur significant expenses and net losses until such time as we are able to report profitable results. The net losses we incur may fluctuate significantly from quarter to quarter. We anticipate that we will incur significant expenses if and as we: • • • • • commercially launch PYRUKYND® for the treatment of [adults with PK deficiency] in the United States; continue to establish and maintain a sales, marketing and distribution infrastructure to commercialize PYRUKYND® and other product candidates for which we may obtain marketing approval; initiate and continue clinical trials for our products and product candidates, including PYRUKYND® in other indications; continue our research and preclinical development of our product candidates and seek to identify additional product candidates; seek marketing approvals for our product candidates that successfully complete clinical trials; require the manufacture of larger quantities of product candidates for clinical development and commercialization; • maintain, expand and protect our intellectual property portfolio; • • • add additional personnel to support our product research and development and planned future commercialization efforts and our operations; add equipment and physical infrastructure to support our research and development; and acquire or in-license other medicines and technologies. To become and remain profitable, we must develop and successfully commercialize one or more medicines with significant market potential. This will require us to be successful in a range of challenging activities, including completing preclinical testing and clinical trials of our product candidates, obtaining marketing approval for these product candidates, manufacturing, marketing and selling those medicines for which we may obtain marketing approval and satisfying any post-marketing requirements. Notwithstanding the extent to which we may succeed in any of these activities, we may never generate revenues that are significant or large enough to achieve profitability. If we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our failure to become and remain profitable would decrease the value of our company and could impair our ability to raise capital, maintain our research and development efforts, expand our business or continue our operations. A decline in the value of our company could also cause our stockholders to lose all or part of their investment. The amount of contingent consideration we will receive from the sale of our oncology business to Servier is subject to various risks and uncertainties. Upon closing of the sale of our oncology business to Servier, Servier assumed certain liabilities with respect to the oncology business and paid to us: approximately $1.8 billion in cash, net of certain adjustments for the working capital of the oncology business at the time of closing of the transaction and amounts for a representation and warranty insurance policy. In addition, Servier will pay to us: • $200 million in cash if, prior to January 1, 2027, vorasidenib is granted approval for a new drug application, or NDA, from the FDA with an approved label that permits vorasidenib’s use as a single agent for the adjuvant treatment of 40 Table of Contents patients with Grade 2 glioma that have an IDH1 or IDH2 mutation (and, to the extent required by such approval, the vorasidenib companion diagnostic test is granted an FDA premarket approval); • • a royalty payment of 5% of the U.S. net sales (as defined in the purchase agreement with Servier) of TIBSOVO® from the completion of the transaction through loss of exclusivity of TIBSOVO®; and a royalty payment of 15% of the U.S. net sales (as defined in the purchase agreement with Servier) of vorasidenib from its first commercial sale through loss of exclusivity of vorasidenib. The contingent consideration described above is subject to various risks and uncertainties. Whether the regulatory approval milestone will be achieved prior to January 1, 2027 is subject to various risks and uncertainties, many of which are outside of the control of the parties, including adverse clinical developments with respect to vorasidenib. In addition, we cannot predict what success, if any, Servier may have in the United States with respect to sales of TIBSOVO® and vorasidenib, if approved, and, therefore, the amount of royalty payments that we can expect to receive from Servier under the terms of the purchase agreement prior to the loss of exclusivity of these products. The royalty payments are also subject to deductions and other adjustments under the terms of the purchase agreement, the amounts of which are uncertain as of the date of this report. Changes in tax laws or in their implementation or interpretation may adversely affect our business and financial condition. Changes in tax law may adversely affect our business or financial condition. On December 22, 2017, the U.S. government enacted the Tax Cuts and Jobs Act, or the Tax Act, which significantly reformed the U.S. Internal Revenue Code of 1986, as amended, or the Code. The Tax Act, among other things, contained significant changes to corporate taxation. As part of Congress’ response to the COVID-19 pandemic, the Families First Coronavirus Response Act, or FFCR Act, was enacted on March 18, 2020, the Coronavirus Aid, Relief, and Economic Security Act, or CARES Act, was enacted on March 27, 2020, COVID-19 relief provisions were included in the Consolidated Appropriations Act, 2021, or CAA, which was enacted on December 27, 2020 and the American Rescue Plan Act of 2021, or ARPA, was enacted on March 11, 2021. All contain numerous tax provisions. Regulatory guidance under the Tax Act, the FFCR Act, the CARES Act, the CAA and the ARPA is and continues to be forthcoming, and such guidance could ultimately increase or lessen impact of these laws on our business and financial condition. It is possible that Congress will enact additional legislation in connection with the COVID-19 pandemic. Furthermore, as a result of the changes in the U.S. presidential administration and control of the U.S. Senate, it is possible that additional tax legislation will be enacted. Such legislation could have an impact on our company. In addition, it is uncertain if and to what extent various states will conform to the Tax Act, the FFCR Act, the CARES Act, the CAA or the ARPA. Risks Related to Our Dependence on Third Parties We may depend on collaborations with third parties for the development and commercialization of our product candidates. If those collaborations are not successful, we may not be able to capitalize on the market potential of these product candidates. We may seek collaborations for the development and commercialization of our product candidates with large and mid-size pharmaceutical companies and biotechnology companies. We face significant competition in seeking appropriate collaborators. Collaborations are complex and time-consuming to negotiate and document. Whether we reach a definitive agreement for a collaboration will depend, among other things, upon our assessment of the collaborator’s resources and expertise, the terms and conditions of the proposed collaboration and the proposed collaborator’s evaluation of a number of factors. We may not be able to negotiate collaborations on a timely basis, on acceptable terms, or at all. Collaborators may have rights that restrict us from entering into future agreements on certain terms with potential collaborators. If we enter into any such arrangements with collaborators, we will likely have limited control over the amount and timing of resources that our collaborators dedicate to the development or commercialization of our product candidates. Collaborators may not pursue development and commercialization of our product candidates or may elect not to continue or renew development or commercialization programs based on clinical trial results, changes in the collaborator’s strategic focus or available funding or external factors such as an acquisition that diverts resources or creates competing priorities. Collaborators may delay clinical trials, provide insufficient funding for a clinical trial program, stop a clinical trial or abandon a product candidate, repeat or conduct new clinical trials or require a new formulation of a product candidate for clinical testing, which may result in a need for additional capital to pursue further development or commercialization of the applicable product candidate. Collaborators may not properly maintain or defend our intellectual property rights or may use our proprietary information in such a way as to invite litigation that could jeopardize or invalidate our proprietary information or expose us to potential litigation. Disputes may arise between the collaborators and us that result in the delay or termination of the research, development or commercialization 41 Table of Contents of our medicines or product candidates or that result in costly litigation or arbitration that diverts management attention and resources. Our ability to generate revenue from these arrangements will depend on our collaborators’ abilities to successfully perform the functions assigned to them in these arrangements. We rely and expect to continue to rely on third parties to conduct our clinical trials and some aspects of our research and preclinical testing, and those third parties may not perform satisfactorily, including failing to meet deadlines for the completion of such trials, research or testing. We do not independently conduct clinical trials of any of our product candidates. We rely and expect to continue to rely on third parties, such as CROs, clinical data management organizations, medical institutions and clinical investigators, to conduct our clinical trials. In addition, we currently rely and expect to continue to rely on third parties to conduct some aspects of our research and preclinical testing. Any of these third parties may terminate their engagements with us, some in the event of an uncured material breach and some at any time. If any of our relationships with these third parties terminate, we may not be able to enter into similar arrangements with alternative third-parties or to do so on commercially reasonable terms. Switching or adding additional third parties involves additional cost and requires management time and focus. As a result, delays may occur in our product development activities. Although we seek to carefully manage our relationships with our CROs, we could encounter such challenges or delays that could have a material adverse impact on our business, financial condition and prospects. Our reliance on third parties for research and development activities reduces our control over these activities but does not relieve us of our responsibilities. For example, we are responsible for ensuring that each of our studies is conducted in accordance with the applicable protocol and legal, regulatory and scientific standards, and our reliance on third parties does not relieve us of our responsibility to comply with any such standards. We and these third parties are required to comply with current good clinical practices, or cGCP, which are regulations and guidelines enforced by the FDA, the Competent Authorities of the Member States of the European Economic Area and comparable foreign regulatory authorities for all of our product candidates in clinical development. Regulatory authorities enforce these cGCPs through periodic inspections of trial sponsors, principal investigators and trial sites. If we or any of these third parties fail to comply with applicable cGCPs, the clinical data generated in our clinical trials may be deemed unreliable and the FDA, the EMA, or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving our marketing applications. We cannot assure you a given regulatory authority will determine that any of our clinical trials comply with cGCP regulations. We also are required to register ongoing clinical trials and post the results of completed clinical trials on a U.S. government-sponsored database, clinicaltrials.gov, within certain timeframes. Failure to do so can result in fines, adverse publicity and civil and criminal sanctions. We are exposed to risk of fraud or other misconduct by such third parties. Furthermore, third parties on whom we rely may also have relationships with other entities, some of which may be our competitors. In addition, these third parties are not our employees, and except for remedies available to us under our agreements with such third parties, we cannot control whether or not they devote sufficient time and resources to our on-going clinical, nonclinical and preclinical programs. If these third parties do not successfully carry out their contractual duties or obligations or meet expected deadlines, if they need to be replaced or if the quality or accuracy of the clinical data they obtain is compromised, our clinical trials may be extended, delayed or terminated and we may not be able to obtain, or may be delayed in obtaining, marketing approvals for our product candidates and will not be able to, or may be delayed in our efforts to, successfully commercialize our medicines. We also rely and expect to continue to rely on other third parties to store and distribute drug supplies for our clinical trials. Any performance failure on the part of our distributors could delay clinical development or marketing approval of our product candidates or commercialization of our medicines, producing additional losses and depriving us of potential product revenue. We contract with third parties for the manufacture of our product candidates for preclinical and clinical testing for commercialization. We do not have any manufacturing facilities. We currently rely, and expect to continue to rely, on third-party manufacturers for the materials and manufacture of our product candidates for preclinical and clinical testing and for commercial supply of PYRUKYND® and any product candidate for which we or our collaborators obtain marketing approval. Although we have entered into long-term supply agreements for commercial supply of PYRUKYND® with third-party manufacturers ahead of its commercial launch, we may be unable to establish similar long-term supply agreements with third-party manufacturers with respect to our other GDD product candidates or to do so on acceptable terms. Even if we are able to establish agreements with third-party manufacturers, reliance on third-party manufacturers entails additional risks, including: • reliance on the third party for regulatory compliance, quality assurance, environmental and safety and pharmacovigilance reporting; 42 Table of Contents • • the possible breach of the manufacturing agreement by the third party; and the possible termination or nonrenewal of the agreement by the third party at a time that is costly or inconvenient for us. Third-party manufacturers may not be able to comply with current cGMPs. regulations or similar regulatory requirements on a global basis. Our failure, or the failure of our third-party manufacturers, to comply with applicable regulations could result in sanctions being imposed on us, including fines, injunctions, civil penalties, delays, suspension or withdrawal of approvals, license revocation, seizures or recalls of product candidates or medicines, operating restrictions and criminal prosecutions, any of which could significantly and adversely affect supplies of our medicines and harm our business and results of operations. We have been monitoring our supply chain network for any disruptions due to the COVID-19 pandemic, and our manufacturers have remained largely unaffected, with any campaign delays experienced to date being limited to a few days in duration. Although global shipping continues to be disrupted due to the pandemic, we have not yet experienced a supply impact. If either we or any third parties on which we rely are adversely impacted by restrictions resulting from the COVID-19 pandemic, our supply chain may be disrupted, limiting our ability to manufacture our product candidates for our clinical trials and research and development operations and our product for commercialization. Any performance failure on the part of our existing or future manufacturers could delay clinical development, marketing approval or our commercialization efforts. We do not currently have arrangements in place for redundant supply for drug product. If any one of our current contract manufacturers cannot perform as agreed, we may be required to replace that manufacturer. Although we believe that there are several potential alternative manufacturers who could manufacture our product or our product candidates, we may incur added costs and delays in identifying and qualifying any such replacement. Our current and anticipated future dependence upon others for the manufacture of our product candidates or medicines may adversely affect our future profit margins and our ability to commercialize any medicines that receive marketing approval on a timely and competitive basis. Risks Related to Our Intellectual Property If we are unable to obtain and maintain patent or trade secret protection for our medicines and technology, or if the scope of the patent protection obtained is not sufficiently broad, our competitors could develop and commercialize medicines and technology similar or identical to ours, and our ability to successfully commercialize our medicines and technology may be adversely affected. Our success depends in large part on our ability to obtain and maintain patent protection in the United States and other countries with respect to our proprietary medicines and technology. We seek to protect our proprietary position by filing patent applications in the United States and abroad related to our novel technologies and medicines that are important to our business. We do not yet have issued patents for all our most advanced product candidates in all markets in which we intend to commercialize but we continue to actively pursue patent protection for our assets around the world. The patent prosecution process is costly and time-consuming, and we may not be able to file and prosecute all necessary or desirable patent applications at a reasonable cost or in a timely manner. It is also possible that we will fail to identify and/or file patent applications on every aspect of our research and development output that is or may be eligible for patent protection. Although we enter into non-disclosure and confidentiality agreements with parties who may have access to patentable aspects of our research and development output, such as our employees, corporate collaborators, outside scientific collaborators, contract research organizations, contract manufacturers, consultants, advisors and other third parties, any of these parties may breach the agreements and disclose such output before a patent application is filed, thereby jeopardizing our ability to seek patent protection. There is also the possibility that loss or theft of data or records may jeopardize the ability to seek patent protection or impede the progress or drafting of patent applications. We have licensed patent rights, and in the future may license additional patent rights, from third parties. Such licenses may be accompanied by milestone and/or royalty payment obligations. These licensed patent rights may be valuable to our business, and we may not have the right to control the preparation, filing and prosecution of patent applications, or to maintain the patents, covering technology or medicines underlying such licenses. We cannot be certain that these patents and applications will be prosecuted and enforced in a manner consistent with the best interests of our business. If any such licensors fail to maintain such patents, or lose rights to those patents, the rights we have licensed may be reduced or eliminated and our right to develop and commercialize any of our products that are the subject of such licensed rights could be adversely affected. In addition to the foregoing, the risks associated with patent rights that we license from third parties also apply to patent rights we own. The patent position of biotechnology and pharmaceutical companies generally is highly uncertain, involves complex legal and factual questions and has in recent years been the subject of much litigation. As a result, the issuance, scope, validity, enforceability and commercial value of our patent rights are highly uncertain. Our pending and future patent applications may 43 Table of Contents not result in patents being issued that protect our technology or medicines or that effectively prevent others from commercializing competitive technologies and medicines. Changes in either the patent laws or interpretation of the patent laws in the United States and other countries may diminish the value of our patents or narrow the scope of our patent protection. The laws of foreign countries may not protect our rights to the same extent as the laws of the United States. Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent applications in the United States and other jurisdictions are typically not published until 18 months after filing, or in some cases not at all. Therefore we cannot be certain that we were the first to make the inventions claimed in our owned or licensed patents or pending patent applications, or that we were the first to file for patent protection of such inventions. Assuming the other requirements for patentability are met, prior to March 2013, in the United States, the first to make the claimed invention was entitled to the patent, while outside the United States, the first to file a patent application was entitled to the patent. Beginning in March 2013, the United States transitioned to a first inventor to file system in which, assuming the other requirements for patentability are met, the first inventor to file a patent application will be entitled to the patent. We may be subject to a third-party pre-issuance submission of prior art to the U.S. Patent and Trademark Office, or USPTO, or become involved in opposition, derivation, revocation, reexamination, post-grant and inter partes review or interference proceedings challenging our patent rights or the patent rights of others. An adverse determination in any such submission, proceeding or litigation could reduce the scope of, or invalidate, our patent rights, allow third parties to commercialize our technology or products and compete directly with us, without payment to us, or result in our inability to manufacture or commercialize medicines without infringing third-party patent rights. Even if our patent applications issue as patents, they may not issue in a form that will provide us with any meaningful protection, prevent competitors or other third parties from competing with us or otherwise provide us with any competitive advantage. Our competitors or other third parties may be able to circumvent our patents by developing similar or alternative technologies or products in a non-infringing manner. The issuance of a patent is not conclusive as to its inventorship, scope, validity or enforceability, and our patents may be challenged in the courts or patent offices in the United States and abroad. Such challenges may result in loss of the patent or in one or more patent claims being narrowed or invalidated, which could limit our ability to stop others from using or commercializing similar or identical technology and products, or limit the duration of the patent protection of our technology and medicines. Given the significant amount of time required for the discovery, development, preclinical and clinical testing and regulatory review and approval of new product candidates, patents protecting such candidates might expire before or shortly after such candidates are commercialized. As a result, our intellectual property may not provide us with sufficient rights to exclude others from commercializing products similar or identical to ours. In such circumstances we would be relying primarily on regulatory or marketing exclusivity to exclude others from commercializing a generic version of our products. We may become involved in lawsuits to protect or enforce our patents and other intellectual property rights, which could be expensive, time consuming and unsuccessful. Competitors may infringe our patents and other intellectual property rights. To counter infringement or unauthorized use, we may be required to file infringement claims, which can be expensive and time consuming. In addition, in an infringement proceeding, a court may decide that a patent of ours is invalid or unenforceable, or may refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology in question. An adverse result in any litigation proceeding could put one or more of our patents at risk of being invalidated or interpreted narrowly. Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during this type of litigation. Third parties may initiate legal proceedings alleging that we or our collaborators are infringing their intellectual property rights, the outcome of which would be uncertain and could have a material adverse effect on the success of our business. The biotechnology and pharmaceutical industries are characterized by extensive litigation regarding patents and other intellectual property rights. Our commercial success depends upon our ability and the ability of our collaborators to develop, manufacture, market and sell our product and product candidates and use our proprietary technologies without infringing the proprietary rights and intellectual property of third parties. We have in the past and may in the future become party to, or threatened with, adversarial proceedings or litigation regarding intellectual property rights with respect to our medicines and technology, including opposition, derivation, revocation, reexamination, post-grant and inter partes review or interference proceedings before the USPTO or other patent offices around the world. For example, in 2011, The Leonard and Madlyn Abramson Family Cancer Research Institute at the Abramson Cancer Center of the University of Pennsylvania initiated a lawsuit against us, one of our founders, Craig B. Thompson, M.D., and Celgene, alleging misappropriation of intellectual property and, in 2012, the Trustees of the University of Pennsylvania initiated a similar lawsuit against us and Dr. Thompson. Each of these lawsuits was settled in 2012. We are not aware of any other legal proceedings having been filed against us to date. Third parties may assert infringement claims against us based on existing patents or patents that may be granted in the future. If we or one of our collaborators are found to infringe a third party’s intellectual property rights, we or they could be required to 44 Table of Contents obtain a license from such third party to continue developing and marketing our medicines and technology. However, we or our collaborators may not be able to obtain any required license on commercially reasonable terms or at all. Even if we or our collaborators were able to obtain a license, it could be non- exclusive, thereby giving our competitors and other third parties access to the same technologies licensed to us. We or our collaborators could be forced, including by court order, to cease developing and commercializing the infringing technology or medicine. In addition, we or our collaborators could be found liable for monetary damages. A finding of infringement could prevent us or our collaborators from commercializing our product and product candidates or force us to cease some of our business operations, which could materially harm our business. Claims that we or our collaborators have misappropriated the confidential information or trade secrets of third parties could have a similar negative impact on our business. We may be subject to claims that our employees have wrongfully used or disclosed alleged trade secrets of their former employers. Many of our employees, consultants or advisors are currently or were previously employed at universities or other biotechnology or pharmaceutical companies, including our competitors or potential competitors. Although we try to ensure that our employees, consultants and advisors do not use the proprietary information or know-how of others in their work for us, we may be subject to claims that we or these individuals have used or disclosed intellectual property, including trade secrets or other proprietary information, of any such individual’s current or former employer. Litigation may be necessary to defend against these claims. If we fail in defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a distraction to our organization. Intellectual property litigation could cause us to spend substantial resources and distract our personnel from their normal responsibilities. Even if resolved in our favor, litigation or other legal proceedings relating to intellectual property claims may cause us to incur significant expenses, and could distract our technical and management personnel from their normal responsibilities. In addition, there could be public announcements of the results of hearings, motions or other interim proceedings or developments and if securities analysts or investors perceive these results to be negative, it could have a substantial adverse effect on the price of our common stock. Such litigation or proceedings could substantially increase our operating losses and reduce the resources available for development activities or any future sales, marketing or distribution activities. We may not have sufficient financial or other resources to adequately conduct such litigation or proceedings. Some of our competitors may be able to sustain the costs of such litigation or proceedings more effectively than we can because of their greater financial resources and more mature and developed intellectual property portfolios. Uncertainties resulting from the initiation and continuation of patent litigation or other proceedings could have a material adverse effect on our ability to compete in the marketplace. If we are unable to protect the confidentiality of our confidential information related to our proprietary platforms and technology, our business and competitive position could be harmed. In addition to seeking patents for some of our technology and medicines, we also rely on maintaining the confidentiality of unpatented know-how, technology and other proprietary information, to maintain our competitive position. For example, we consider the confidential information and know-how related to our cellular metabolism technology platform to be our primary intellectual property assets in this space. Unpatented proprietary technical information and know-how can be difficult to protect. We seek to protect this proprietary technical information and know-how, in part, by entering into non-disclosure and confidentiality agreements with parties who have access to them, such as our employees, corporate collaborators, outside scientific collaborators, contract research organizations, contract manufacturers, consultants, advisors and other third parties. We also enter into confidentiality and invention or patent assignment agreements with our employees and consultants. Despite these efforts, any of these parties may breach the agreements and disclose our proprietary information, and we may not be able to obtain adequate remedies for such breaches. Enforcing a claim that a party illegally disclosed or misappropriated proprietary information is difficult, expensive and time-consuming, and the outcome is unpredictable. If any of our proprietary technical information and know-how were to be lawfully obtained or independently developed by a competitor or other third party, we would have no right to prevent them from using that technology or information to compete with us. Moreover, we anticipate that with respect to this platform, at least some of this technical information and know-how will, over time, be disseminated within the industry through independent development, the publication of journal articles describing the methodology, and the movement of personnel skilled in the art from academic to industry scientific positions. Risks Related to Regulatory Approval of Our Product Candidates and Other Legal Compliance Matters Even if we complete necessary preclinical studies and clinical trials, the marketing approval process is expensive, time-consuming and uncertain and may prevent us from obtaining approvals for the commercialization of some or all of our product candidates. If we or our collaborators are not able to obtain, or if there are delays in obtaining, required regulatory 45 Table of Contents approvals, we or they will not be able to commercialize, or will be delayed in commercializing, our product candidates, and our ability to generate revenue will be materially impaired. Our product candidates and the activities associated with their development and commercialization, including their design, testing, manufacture, safety, efficacy, record keeping, labeling, storage, approval, advertising, promotion, sale and distribution, export and import, are subject to comprehensive regulation by the FDA and other regulatory agencies in the United States and by the EMA and comparable regulatory authorities in other countries. With the exception of the FDA approval of PYRUKYND®, for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States, we have not received approval to market any of our current product candidates from regulatory authorities in any jurisdiction. Securing marketing approval requires the submission of extensive preclinical and clinical data and supporting information to the various regulatory authorities for each therapeutic indication to establish the product candidate’s safety and efficacy. Securing regulatory approval also requires the submission of information about the product manufacturing process to, and inspection of manufacturing facilities by, the relevant regulatory authority. Our product candidates may not be effective, may be only moderately effective or may prove to have undesirable or unintended side effects, toxicities or other characteristics that may preclude our obtaining marketing approval or prevent or limit commercial use. The FDA, EMA and other foreign regulatory authorities have substantial discretion in the approval process. Accordingly, it is possible that the FDA or EMA may refuse to accept for substantive review any NDA, sNDA or MAA that we submit for our product candidates, or may conclude after review of our data that our marketing application is insufficient to obtain marketing approval of our product candidates, including with respect to the MAA for PYRUKYND® that is currently under review by the EMA. If the FDA or EMA does not accept or approve our applications for any of our product candidates, the applicable regulator may require that we conduct additional clinical trials, preclinical studies or manufacturing validation studies and submit that data before reconsidering our applications. Depending on the extent of these or any other FDA- or EMA-required trials or studies, approval of any marketing applications that we submit may be delayed by several years, or may require us to expend more resources than we planned. It is also possible that additional trials or studies, if performed and completed, may not be considered sufficient by the FDA or EMA to approve any marketing applications. We may not be successful in obtaining FDA or EMA approval of our product candidates on a timely basis, or ever. We have limited experience in filing and supporting the applications necessary to gain marketing approvals and expect to rely on third-party contract research organizations to assist us in this process, and failure to obtain marketing approval for our product candidates will prevent us from commercializing the product candidate in the applicable jurisdictions. Further, the process of obtaining marketing approvals, both in the United States and abroad, is expensive, may take many years if additional clinical trials are required, if approval is obtained at all, and can vary substantially based upon a variety of factors, including the type, complexity and novelty of the product candidates involved. Changes in marketing approval policies during the development period, changes in or the enactment of additional statutes or regulations, or changes in regulatory review for each submitted product application, may cause delays in the approval or rejection of an application. In addition, varying interpretations of the data obtained from preclinical and clinical testing could delay, limit or prevent marketing approval of a product candidate. Any marketing approval we or our collaborators ultimately obtain may be limited or subject to restrictions or post-approval commitments that render the approved medicine not commercially viable. In addition, the COVID-19 pandemic may continue to disrupt the U.S. and international healthcare and regulatory systems. These disruptions could materially delay the review of, and/or decision making with respect to, marketing approvals for our product candidates. Any delay in regulatory review or decision making resulting from such disruptions could materially affect the development of our product candidates. Disruptions at the FDA and other agencies may prolong the time necessary for regulatory submissions to be reviewed and/or new drugs to be 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 were to occur, 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. Should the FDA determine that an inspection is necessary for approval of a regulatory submission and an inspection cannot be completed during the review cycle due to restrictions on travel due to COVID-19, and the FDA does not determine a remote interactive evaluation to be adequate, the FDA has stated that it generally intends to issue a complete response letter or defer action on the regulatory submission until an inspection can be completed. If we or our collaborators experience delays in obtaining approval or if we or they fail to obtain approval of our product candidates, the commercial prospects for our product candidates may be harmed and our ability to generate revenue will be materially impaired. Failure to obtain marketing approval in foreign jurisdictions would prevent our medicines from being marketed in such jurisdictions and any of our medicines that are approved for marketing in such jurisdiction will be subject to risk associated with foreign operations. 46 Table of Contents In order to market and sell our medicines in the EU and many other foreign jurisdictions, we or our collaborators must obtain separate marketing approvals and comply with numerous and varying regulatory requirements. The approval procedure varies among countries and can involve additional testing. The time required to obtain approval may differ substantially from that required to obtain FDA approval. The regulatory approval process outside the United States generally includes all of the risks associated with obtaining FDA approval. In addition, in many countries outside the United States, a product must be approved for reimbursement before the product can be approved for sale in that country. We or our collaborators may not obtain approvals from regulatory authorities outside the United States on a timely basis, if at all. Moreover, approval by the FDA does not ensure approval by regulatory authorities in other countries or jurisdictions, and approval by one regulatory authority outside the United States does not ensure approval by regulatory authorities in other countries or jurisdictions or by the FDA. We may not be able to file for marketing approvals and may not receive necessary approvals to commercialize our medicines in any market. Additionally, we could face heightened risks with respect to seeking marketing approval in the United Kingdom as a result of the withdrawal of the United Kingdom from the EU on December 31, 2020, commonly referred to as Brexit. On December 24, 2020, the United Kingdom and EU entered into a Trade and Cooperation Agreement, which sets out certain procedures for approval and recognition of medical products in each jurisdiction, and the United Kingdom and EU continue to work on the rules for implementation. Since the regulatory framework for pharmaceutical products in the United Kingdom covering the quality, safety, and efficacy of pharmaceutical products, clinical trials, marketing authorization, commercial sales, and distribution of pharmaceutical products is derived from EU directives and regulations, the consequences of Brexit and the impact the future regulatory regime that applies to products and the approval of product candidates in the United Kingdom remains unclear. Any delay in obtaining, or an inability to obtain, any marketing approvals, as a result of Brexit or otherwise, would prevent us from commercializing any product candidates in the United Kingdom and/or the EU and restrict our ability to generate revenue and achieve and sustain profitability, which could significantly and materially harm our business. We expect that we will be subject to additional risks in commercializing any of our product candidates that receive marketing approval outside the United States, including tariffs, trade barriers and regulatory requirements; economic weakness, including inflation, or political instability in particular foreign economies and markets; compliance with tax, employment, immigration and labor laws for employees living or traveling abroad; foreign currency fluctuations, which could result in increased operating expenses and reduced revenue, and other obligations incident to doing business in another country; and workforce uncertainty in countries where labor unrest is more common than in the United States. In addition, we do not have experience commercializing products outside of the United States and such efforts may depend on our ability to find a suitable collaborator. Fast track designation and/or priority review designation by the FDA or PRIME designation in the EU may not actually lead to a faster development or regulatory review or approval process, nor does it assure approval of the product candidate by the FDA or the EMA. We may seek fast track designation, priority review designation and/or PRIME designation for our product candidates. If a product candidate is intended for the treatment of a serious or life-threatening disease or condition and the product candidate demonstrates the potential to address unmet medical needs for this disease or condition, the drug sponsor may apply for FDA fast track designation. Further, if the FDA determines that a product candidate offers major advances in treatment or provides a treatment where no adequate therapy exists, the FDA may designate the product candidate for priority review. A priority review designation means that the goal for the FDA to review an application is six months, rather than the standard review period of ten months. Receiving priority review from the FDA does not guarantee approval within the six-month review cycle or thereafter. The FDA has broad discretion on whether to grant fast track designation and/or priority review designation to a product candidate, so even if we believe a particular product candidate is eligible for such designation or status, the FDA may decide not to grant it. Even if our product candidates receive fast track designation and/or priority review designation, we may not experience a faster development process, review or approval, if at all, compared to conventional FDA procedures. The FDA may withdraw fast track designation if it believes that the designation is no longer supported by data from our clinical development program. In addition, in the EU, the PRIME designation program focuses on product candidates that target conditions for which there exists no satisfactory method of treatment in the EU or product candidates that may offer a major therapeutic advantage over existing treatments. The benefits of a PRIME designation include, among other things, the potential to qualify product for accelerated review, meaning reduction in the review time for an opinion on approvability to be issued earlier in the application process. PRIME designation enables an applicant to request parallel EMA scientific advice and health technology assessment advice to facilitate timely market access. Even if our product candidates receive PRIME designation, we may not experience a faster development process, review or approval compared to conventional EMA procedures and it does not assure or increase the likelihood of the EMA’s grant of a marketing authorization. 47 Table of Contents We, or any collaborators, may not be able to obtain orphan drug designation or orphan drug exclusivity for our drug candidates and, even if we do, that exclusivity may not prevent the FDA or the EMA from approving competing drugs. Regulatory authorities in some jurisdictions, including the United States and Europe, may designate drugs and biologics for relatively small patient populations as orphan drugs. Under the Orphan Drug Act, the FDA may designate a product as an orphan drug if it is a drug or biologic intended to treat a rare disease or condition, which is generally defined as a patient population of fewer than 200,000 individuals annually in the United States. Generally, if a product with an orphan drug designation subsequently receives the first marketing approval for the indication for which it has such designation, the product is entitled to a period of marketing exclusivity, which precludes the EMA or the FDA from approving another marketing application for the same product for that time period. The applicable period is seven years in the United States and ten years in Europe. The European exclusivity period can be reduced to six years if a product no longer meets the criteria for orphan drug designation or if the product is sufficiently profitable so that market exclusivity is no longer justified. Orphan drug exclusivity may be lost if the FDA or EMA determines that the request for designation was materially defective or if the manufacturer is unable to assure sufficient quantity of the product to meet the needs of patients with the rare disease or condition. Moreover, even after an orphan drug is approved, the FDA can subsequently approve a different product for the same condition if the FDA concludes that the later product is clinically superior in that it is shown to be safer, more effective or makes a major contribution to patient care. Moreover, even after an orphan drug is approved, the FDA can subsequently approve a different product for the same condition if the FDA concludes that the later product is clinically superior in that it is shown to be safer, more effective or makes a major contribution to patient care. The FDA may reevaluate the Orphan Drug Act and its regulations and policies. We do not know if, when, or how the FDA may change the orphan drug regulations and policies in the future, and it is uncertain how any changes might affect our business. Any product or product candidate for which we or our collaborators obtain marketing approval could be subject to restrictions or withdrawal from the market and we may be subject to substantial penalties if we fail to comply with regulatory requirements or if we experience unanticipated problems with our medicines, when and if any of them are approved. Any product or product candidate for which we or our collaborators obtain marketing approval, along with the manufacturing processes, post-approval clinical data, labeling, advertising and promotional activities for such medicine, will be subject to continual requirements of and review by the FDA and other regulatory authorities. These requirements include submissions of safety and other post-marketing information and reports, registration and listing requirements, cGMP requirements relating to quality control and manufacturing, quality assurance and corresponding maintenance of records and documents, and requirements regarding the distribution of samples to physicians and record keeping. Even if marketing approval of a product candidate is granted, the approval may be subject to limitations on the indicated uses for which the medicine may be marketed or to the conditions of approval, or contain requirements for costly post-marketing testing and surveillance to monitor the safety or efficacy of the medicine, including the requirement to implement a risk evaluation and mitigation strategy. The FDA and other agencies, including the Department of Justice, or the DOJ, closely regulate and monitor the post-approval marketing and promotion of products to ensure that they are marketed and distributed only for the approved indications and in accordance with the provisions of the approved labeling. The FDA and DOJ impose stringent restrictions on manufacturers’ communications regarding off-label use and if we market our medicines for uses other than their respective approved indications, we may be subject to enforcement action for off-label marketing. Violations of the FDCA and other statutes, including the False Claims Act, relating to the promotion and advertising of prescription drugs may lead to investigations and enforcement actions alleging violations of federal and state health care fraud and abuse laws, as well as state consumer protection laws, which violations may result in the imposition of significant administrative, civil and criminal penalties. Our relationships with healthcare providers, physicians and third-party payors are subject to applicable anti-kickback, fraud and abuse and other healthcare laws and regulations, which, in the event of a violation, could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm and diminished profits and future earnings. Healthcare providers, physicians and third-party payors will play a primary role in the recommendation and prescription of PYRUKYND® and any product candidates for which we obtain marketing approval. Our future arrangements with healthcare providers, physicians and third-party payors may expose us to broadly applicable fraud and abuse and other healthcare laws and regulations that may constrain the business or financial arrangements and relationships through which we market, sell and distribute PYRUKYND® and any other medicines for which we obtain marketing approval. Restrictions under applicable federal and state healthcare laws and regulations include the following: • the federal Anti-Kickback Statute prohibits, among other things, persons 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 or arranging of, any good or service, for which payment may be made under a federal healthcare program such as Medicare and Medicaid; 48 Table of Contents • • the federal False Claims Act imposes criminal and civil penalties, including through civil whistleblower or qui tam actions, against individuals or entities for, among other things, knowingly presenting, or causing to be presented, false or fraudulent claims for payment by a federal healthcare program or making a false statement or record material to payment of a false claim or avoiding, decreasing or concealing an obligation to pay money to the federal government, with potential liability including mandatory treble damages and significant per-claim penalties; the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, imposes criminal and civil liability for executing a scheme to defraud any healthcare benefit program or making false statements relating to healthcare matters; • HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act and its implementing regulations, also imposes obligations, including mandatory contractual terms, with respect to safeguarding the privacy, security and transmission of individually identifiable health information; • • the federal Physician Payments Sunshine Act requires applicable manufacturers of covered drugs to report payments and other transfers of value to physicians and teaching hospitals and other covered recipients; and analogous state and foreign laws and regulations, such as state anti-kickback and false claims laws and transparency statutes, may apply to sales or marketing arrangements and claims involving healthcare items or services reimbursed by non-governmental third-party payors, including private insurers. Some state laws require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government and may require drug manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing expenditures. State and foreign laws also govern 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 with third parties will comply with applicable healthcare laws and regulations will involve substantial costs. It is possible that governmental authorities will conclude that our business practices may not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, damages, fines, imprisonment, exclusion of products from government funded healthcare programs, such as Medicare and Medicaid, and the curtailment or restructuring of our operations. If any of the physicians or other healthcare providers or entities with whom we expect to do business are found to be not in compliance with applicable laws, they may be subject to criminal, civil or administrative sanctions, including exclusions from government funded healthcare programs. The provision of benefits or advantages to physicians to induce or encourage the prescription, recommendation, endorsement, purchase, supply, order or use of medicinal products is also prohibited in the EU. The provision of benefits or advantages to physicians is governed by the national anti-bribery laws of EU Member States, such as the U.K. Bribery Act 2010. Infringement of these laws could result in substantial fines and imprisonment. Payments made to physicians in certain EU Member States must be publicly disclosed. Moreover, agreements with physicians often must be the subject of prior notification and approval by the physician’s employer, his or her competent professional organization and/or the regulatory authorities of the individual EU Member States. These requirements are provided in the national laws, industry codes or professional codes of conduct, applicable in the EU Member States. Failure to comply with these requirements could result in reputational risk, public reprimands, administrative penalties, fines or imprisonment. PYRUKYND® or any product candidate that we commercialize, such products may become subject to unfavorable pricing regulations and third-party reimbursement practices, which would harm our business. The commercial success of PYRUKYND® or of any of our product candidates will depend substantially, both domestically and abroad, on the extent to which the costs of our product candidates will be paid by third-party payors, including government health administration authorities and private health coverage insurers. If coverage and reimbursement is not available, or reimbursement is available only to limited levels, we, or any collaborators, may not be able to successfully commercialize PYRUKYND® or our product candidates. Even if coverage is provided, the approved reimbursement amount may not be high enough to allow us, or any future collaborators, to establish or maintain pricing sufficient to realize a sufficient return on our or their investments. In the United States, no uniform policy of coverage and reimbursement for products exists among third-party payors and coverage and reimbursement for 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. There is significant uncertainty related to third-party payor coverage and reimbursement of newly approved drugs. Marketing approvals, pricing and reimbursement for new drug products vary widely from country to country. Some countries require 49 Table of Contents approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after marketing or product licensing approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continuing governmental control even after initial approval is granted. In these countries, pricing negotiations with governmental authorities can take considerable time after the receipt of marketing approval for a product. To obtain reimbursement or pricing approval in some countries, we may be required to conduct a clinical trial that compares the cost effectiveness of our product candidates to other available therapies. If reimbursement of our products is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, our ability to generate revenues and become profitable could be impaired. As a result, we, or any collaborators, might obtain marketing approval for a product in a particular country, but then be subject to price regulations that delay commercial launch of the product, possibly for lengthy time periods, which may negatively impact the revenue we are able to generate from the sale of the product in that country. Adverse pricing limitations may hinder our ability or the ability of any collaborators to recoup our or their investment in one or more product candidates, even if our product candidates obtain marketing approval. Patients who are provided medical treatment for their conditions generally rely on third-party payors to reimburse all or part of the costs associated with their treatment. Therefore, our ability, and the ability of any collaborators, to commercialize PYRUKYND® or any of our product candidates will depend in part on the extent to which coverage and reimbursement for these products and related treatments will be available from third-party payors. Third-party payors decide which medications they will cover and establish reimbursement levels. The healthcare industry is acutely focused on cost containment, both in the United States and elsewhere. Government authorities and other third-party payors have attempted to control costs by limiting coverage and the amount of reimbursement for particular medications, which could affect our ability or that of any collaborators to sell PYRUKYND® or our product candidates profitably. These payors may not view our products, if any, as cost-effective, and coverage and reimbursement may not be available to our customers, or those of any collaborators, or may not be sufficient to allow our products, if any, to be marketed on a competitive basis. Cost-control initiatives could cause us, or any collaborators, to decrease the price we, or they, might establish for products, which could result in lower than anticipated product revenue. If the prices for our products, if any, decrease or if governmental and other third-party payors do not provide coverage or adequate reimbursement, our prospects for revenue and profitability will suffer. In addition, increasingly, third-party payors are requiring higher levels of evidence of the benefits and clinical outcomes of new technologies and are challenging the prices charged. We cannot be sure that coverage will be available for PYRUKYND® or any product candidate that we, or any collaborator, may commercialize and, if available, that the reimbursement rates will be adequate. Further, the net reimbursement for drug products may be subject to additional reductions if there are changes to laws that presently restrict imports of drugs from countries where they may be sold at lower prices than in the United States. An inability to promptly obtain coverage and adequate payment rates from both government-funded and private payors for PYRUKYND® or any of our product candidates for which we, or any collaborator, may obtain marketing approval could significantly harm our operating results, our ability to raise capital needed to commercialize products and our overall financial condition. Current and future healthcare reform legislation may increase the difficulty and cost for us and any collaborators to obtain reimbursement and commercialize our drug candidates. In the United States and foreign jurisdictions, there have been a number of legislative and regulatory changes and proposed changes regarding the healthcare system that could prevent or delay marketing approval of our product candidates, restrict or regulate post-approval activities and affect our ability, or the ability of any collaborators, to profitably sell PYRUKYND® or any other product for which we, or they, obtain marketing approval. We expect that current laws, as well as other healthcare reform measures that may be adopted in the future, may result in more rigorous coverage criteria and in additional downward pressure on the price that we, or any collaborators, may receive for any approved products. If reimbursement of our products is unavailable or limited in scope, our business could be materially harmed. In March 2010, President Obama signed into law the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Affordability Reconciliation Act, or collectively the ACA. In August 2011, the Budget Control Act of 2011, among other things, created measures for spending reductions by Congress. This legislation resulted in aggregate reductions to Medicare payments to providers of up to 2% per fiscal year, which will remain in effect through 2031. However, pursuant to the CARES Act and subsequent legislation, these Medicare sequester reductions are suspended through the end of March 2022 and from April 2022 through June 2022, a 1% cut will be in effect, with the full 2% cut resuming thereafter. The American Taxpayer Relief Act of 2012, among other things, reduced Medicare payments to several providers and increased the statute of limitations period for the government to recover overpayments to providers from three to five years. These laws may result in additional reductions in Medicare and other healthcare funding and otherwise affect the prices we may obtain for any of our product candidates for which we may obtain regulatory approval or the frequency with which any such product candidate is prescribed or used. 50 Table of Contents Since enactment of the ACA, there have been, and continue to be, numerous legal challenges and Congressional actions to repeal and replace provisions of the law. For example, in 2017, Congress repealed the “individual mandate.” The repeal of this provision, which requires most Americans to carry a minimal level of health insurance, became effective in 2019. On November 10, 2020, the Supreme Court heard oral arguments as to whether the individual mandate portion of the ACA is an essential and inseverable feature of the ACA, and therefore because the mandate was repealed as part of the Tax Cuts and Jobs Act, the remaining provisions of the ACA are invalid as well. On February 10, 2021, the Biden Administration withdrew the federal government’s support for overturning the ACA. On June 17, 2021, the Supreme Court struck down the lower court rulings, finding that the plaintiffs did not have standing to challenge the ACA’s minimum essential coverage provision at issue in the case. The Trump Administration also took executive actions to undermine or delay implementation of the ACA, including directing federal agencies with authorities and responsibilities under the ACA to waive, defer, grant exemptions from, or delay the implementation of any provision of the ACA that would impose a fiscal or regulatory burden on states, individuals, healthcare providers, health insurers, or manufacturers of pharmaceuticals or medical devices. On January 28, 2021, however, President Biden revoked these Orders and issued a new Executive Order which directs federal agencies to reconsider rules and other policies that limit Americans’ access to health care, and consider actions that will protect and strengthen that access. This Executive Order also directs the U.S. Department of Health and Human Services to create a special enrollment period for the Health Insurance Marketplace in response to the COVID-19 pandemic. We cannot predict how federal agencies will respond to such Executive Orders. The costs of prescription pharmaceuticals in the United States and foreign jurisdictions are subject to considerable legislative and executive actions and could impact the prices we obtain for our drug products, if and when approved. The costs of prescription pharmaceuticals have also been the subject of considerable discussion in the United States. To date, there have been several recent U.S. congressional inquiries, as well as proposed and enacted state and federal legislation designed to, among other things, bring more transparency to drug pricing, review the relationship between pricing and manufacturer patient programs, reduce the costs of drugs under Medicare and reform government program reimbursement methodologies for products. To those ends, President Trump issued several executive orders intended to lower the costs of prescription drug products. Certain of these orders are reflected in recently promulgated regulations, including an interim final rule implementing President Trump’s most favored nation model, which would tie Medicare Part B payments for certain physician- administered drugs to the lowest price paid in other economically advanced countries effective, but such final rule is currently subject to a nationwide preliminary injunction. On August 21, 2021, the Centers for Medicare & Medicaid Services, or CMS, issued a proposed rule to rescind President Trump’s interim final rule, following public notice and comment, and CMS stated it will explore all options to incorporate value into payments for Medicare Part B drugs and improve beneficiaries’ access to evidence-based care. The Biden Administration has frozen certain of the Trump Administration’s measures to reform drug prices. It remains to be seen whether the orders and resulting regulations put in place during the Trump Administration will remain in force. Further, on September 24, 2020, the Trump Administration finalized a rulemaking allowing states or certain other non-federal government entities to submit importation program proposals to the FDA for review and approval. Applicants are required to demonstrate that their importation plans pose no additional risk to public health and safety and will result in significant cost savings for consumers. The FDA has issued draft guidance that would allow manufacturers to import their own FDA-approved drugs that are authorized for sale in other countries (multi-market approved products). At the state level, individual states are increasingly aggressive in passing legislation and implementing regulations designed to 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. In addition, regional health care authorities and individual hospitals are increasingly using bidding procedures to determine what pharmaceutical products and which suppliers will be included in their prescription drug and other health care programs. These measures could reduce the ultimate demand for our products, once approved, or put pressure on our product pricing. We expect that additional state and federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in reduced demand for our product or product candidates or additional pricing pressures. In the European Union, similar political, economic and regulatory developments may affect our ability to profitably commercialize our product candidates, if approved. We are subject to U.S. and foreign export control, import, sanctions, anti-corruption and anti-money laundering laws with respect to our operations and non-compliance with such laws can subject us to criminal and/or civil liability and harm our business. We are subject to export control and import laws and regulations, including the U.S. Export Administration Regulations, U.S. Customs regulations, various economic and trade sanctions regulations administered by the U.S. Treasury Department’s Office 51 Table of Contents of Foreign Assets Control, the U.S. Foreign Corrupt Practices Act of 1977, as amended, the U.S. domestic bribery statute contained in 18 U.S.C. § 201, the U.S. Travel Act, the USA PATRIOT Act, and other state and national anti-bribery and anti-money laundering laws in countries in which we conduct activities. Anti-corruption laws are interpreted broadly and prohibit companies and their employees, agents, third-party intermediaries, joint venture partners and collaborators from authorizing, promising, offering, or providing, directly or indirectly, improper payments or benefits to recipients in the public or private sector. We may have direct or indirect interactions with officials and employees of government agencies or government-affiliated hospitals, universities, and other organizations. In addition, we may engage third party intermediaries to promote our clinical research activities abroad and/or to obtain necessary permits, licenses, and other regulatory approvals. We can be held liable for the corrupt or other illegal activities of these third- party intermediaries, our employees, representatives, contractors, partners, and agents, even if we do not explicitly authorize or have actual knowledge of such activities. Noncompliance with such laws could subject us to whistleblower complaints, investigations, sanctions, settlements, prosecution, other enforcement actions, disgorgement of profits, significant fines, damages, other civil and criminal penalties or injunctions, suspension and/or debarment from contracting with certain persons, the loss of export privileges, reputational harm, adverse media coverage, and other collateral consequences. If any subpoenas, investigations, or other enforcement actions are launched, or governmental or other sanctions are imposed, or if we do not prevail in any possible civil or criminal litigation, our business, results of operations and financial condition could be materially harmed. In addition, responding to any action will likely result in a materially significant diversion of management’s attention and resources and significant defense and compliance costs and other professional fees. In certain cases, enforcement authorities may even cause us to appoint an independent compliance monitor which can result in added costs and administrative burdens. If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could have a material adverse effect on the success of our business. We are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use, storage, treatment and disposal of hazardous materials and wastes. Our operations involve the use of hazardous and flammable materials, including chemicals and biological and radioactive materials. Our operations also produce hazardous waste products. We generally contract with third parties for the disposal of these materials and wastes. We cannot eliminate the risk of contamination or injury from these materials. In the event of contamination or injury resulting from our use of hazardous materials, we could be held liable for any resulting damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties. Although we maintain workers’ compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from the use of hazardous materials, this insurance may not provide adequate coverage against potential liabilities. We do not maintain insurance for environmental liability or toxic tort claims that may be asserted against us in connection with our storage or disposal of biological, hazardous or radioactive materials. In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety laws and regulations. These current or future laws and regulations may impair our research, development or production efforts. Failure to comply with these laws and regulations also may result in substantial fines, penalties or other sanctions. Risks Related to Employee Matters and Managing Growth Our future success depends on our ability to retain our key executives and scientific leadership and to attract, retain and motivate qualified personnel. We are highly dependent on the principal members of our management and scientific teams, each of whom is employed “at will,” meaning we or they may terminate the employment relationship at any time. We do not maintain “key person” insurance for any of our executives or other employees. The loss of the services of any of these persons could impede the achievement of our research, development and commercialization objectives. We cannot predict the likelihood, timing or effect of future transitions among our executive leadership. Recruiting and retaining qualified scientific, clinical, manufacturing, regulatory and sales and marketing personnel will also be critical to our success. We may not be able to attract and retain these personnel on acceptable terms given the competition among numerous pharmaceutical and biotechnology companies and universities and research institutions for similar personnel. Our consultants and advisors, including our scientific co-founders, who assist us in formulating our research and development and commercialization strategy may be employed by employers other than us and may have commitments under consulting or advisory contracts with other entities that may limit their availability to us. Furthermore, the ongoing COVID-19 pandemic and our flexible workplace policy allowing employees to work from home may make it difficult for us to maintain our corporate culture. We expect to continue to experience growth in the number of our employees as we expand our development, regulatory and future sales and marketing capabilities. To manage our anticipated future growth, we must continue to implement and improve 52 Table of Contents our managerial, operational and financial systems, expand our facilities and continue to recruit and train additional qualified personnel. Any inability to manage growth could delay the execution of our business plans or disrupt our operations. Our employees may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements, which could have a material adverse effect on our business. We are exposed to the risk of employee fraud or other misconduct. Misconduct by employees could include intentional failures to comply with FDA regulations or regulations in other jurisdictions, provide accurate information to the FDA or other regulatory authorities, comply with manufacturing standards we have established, comply with federal and state healthcare fraud and abuse laws and regulations, report financial information or data accurately, disclose unauthorized activities to us, or comply with securities laws. Employee misconduct could also involve the improper use of information obtained in the course of clinical trials or interactions with the FDA or other regulatory authorities, including for illegal insider trading activities, which could result in regulatory sanctions and serious harm to our reputation. We have adopted a Code of Business Conduct and Ethics, but it is not always possible to identify and deter employee misconduct, and the precautions we take to detect and prevent this activity may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to be in compliance with such laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business and results of operations, including the imposition of significant fines or other sanctions. We may engage in acquisitions that could disrupt our business, cause dilution to our stockholders or reduce our financial resources. In the future, we may enter into transactions to acquire other businesses, products or technologies. Because we have not made any acquisitions to date, our ability to do so successfully is unproven. If we do identify suitable candidates, we may not be able to make such acquisitions on favorable terms, or at all. Any acquisitions we make may not strengthen our competitive position, and these transactions may be viewed negatively by customers or investors. We may decide to incur debt in connection with an acquisition or issue our common stock or other equity securities to the stockholders of the acquired company, which would reduce the percentage ownership of our existing stockholders. We could incur losses resulting from undiscovered liabilities of the acquired business that are not covered by the indemnification we may obtain from the seller. In addition, we may not be able to successfully integrate the acquired personnel, technologies and operations into our existing business in an effective, timely and non-disruptive manner. Acquisitions may also divert management attention from day-to-day responsibilities, increase our expenses and reduce our cash available for operations and other uses. We cannot predict the number, timing or size of future acquisitions or the effect that any such transactions might have on our operating results. Risks Related to Our Common Stock and Other Matters Provisions in our corporate charter documents and under Delaware law could make an acquisition of us, which may be beneficial to our stockholders, more difficult and may prevent attempts by our stockholders to replace or remove our current management. Provisions in our corporate charter and our bylaws may discourage, delay or prevent a merger, acquisition or other change in control of us that stockholders may consider favorable, including transactions in which you might otherwise receive a premium for your shares. These provisions could also limit the price that investors might be willing to pay in the future for shares of our common stock, thereby depressing the market price of our common stock. In addition, because our board of directors is responsible for appointing the members of our management team, these provisions may frustrate or prevent any attempts by our stockholders to replace or remove our current management by making it more difficult for stockholders to replace members of our board of directors. Among other things, these provisions: • • • • • • • establish a classified board of directors such that not all members of the board are elected at one time; allow the authorized number of our directors to be changed only by resolution of our board of directors; limit the manner in which stockholders can remove directors from the board; establish advance notice requirements for stockholder proposals that can be acted on at stockholder meetings and nominations to our board of directors; require that stockholder actions must be effected at a duly called stockholder meeting and prohibit actions by our stockholders by written consent; limit who may call stockholder meetings; authorize our board of directors to issue preferred stock without stockholder approval, which could be used to institute a shareholder rights plan, or so-called “poison pill,” that would work to dilute the stock ownership of a potential hostile acquirer, effectively preventing acquisitions that have not been approved by our board of directors; and 53 Table of Contents • require the approval of the holders of at least 75% of the votes that all our stockholders would be entitled to cast to amend or repeal certain provisions of our charter or bylaws. Moreover, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which prohibits a person who owns in excess of 15% of our outstanding voting stock from merging or combining with us for a period of three years after the date of the transaction in which the person acquired in excess of 15% of our outstanding voting stock, unless the merger or combination is approved in a prescribed manner. The price of our common stock is likely to be volatile, which could result in substantial losses for purchasers of our common stock. The trading price of our common stock has been, and may continue to be, volatile and could be subject to wide fluctuations in response to various factors, some of which are beyond our control. For example, since January 1, 2015 the price of our common stock on the Nasdaq Global Select Market has ranged from $27.55 per share to $138.85 per share. The stock market in general and the market for biopharmaceutical companies in particular have experienced extreme volatility that has often been unrelated to the operating performance of particular companies. While the full extent of the economic impact and the duration of the COVID-19 pandemic may be difficult to assess or predict, it has already caused, and is likely to result in further, significant disruption of global financial markets, which may reduce our ability to access capital either at all or on favorable terms. The market price for our common stock may be influenced by many factors, including: • • • • • • • • • • • • • • • • • • • • our success in launching and commercializing PYRUKYND®; the impact of the sale of our oncology business to Servier on our business; the impact of our repurchases of shares of common stock from our stockholders; announcements by us or our competitors of significant acquisitions, strategic partnerships, joint ventures, collaborations or capital commitments; the timing and results of clinical trials of product candidates, or our competitors’ product candidates; regulatory actions with respect to our product or product candidates or our competitors’ products and product candidates; commencement or termination of collaborations for our development programs; failure or discontinuation of any of our development programs; regulatory or legal developments in the United States and other countries; developments or disputes concerning patent applications, issued patents or other proprietary rights; the recruitment or departure of key personnel; the level of expenses related to any of our products, product candidates or development programs; the results of our efforts to develop additional product candidates and products; actual or anticipated changes in estimates as to financial results or development timelines; announcement or expectation of additional financing efforts; sales of our common stock by us, our insiders or other stockholders, including shares issuable upon exercise of outstanding stock options and upon vesting of stock units under our stock incentive plans; variations in our financial results or results of companies that are perceived to be similar to us; changes in estimates, evaluations or recommendations by securities analysts, that cover our stock or the failure by one or more securities analysts to continue to cover our stock; changes in the structure of healthcare payment systems; the societal and economic impact of public health epidemics, such as the ongoing COVID-19 pandemic and any recession, depression or sustained market event resulting from the pandemic; • market conditions in the pharmaceutical and biotechnology sectors; • • general economic, industry and market conditions; and the other factors described in this “Risk Factors” section. In the past, following periods of volatility in the market price of a company's securities, securities class-action litigation often has been instituted against that company. Such litigation, if instituted against us, could cause us to incur substantial costs to defend such claims and divert managements' attention and resources, which could seriously harm our business, financial condition, results of operations and prospects. 54 Table of Contents We also cannot guarantee that an active trading market for our shares will be sustained. An inactive trading market for our common stock may impair our ability to raise capital to continue to fund our operations by selling shares and may impair our ability to acquire other companies or technologies by using our shares as consideration. Our financial condition and operating results also may fluctuate from quarter to quarter and year to year due to a variety of factors, many of which are beyond our control. Accordingly, you should not rely upon the results of any quarterly or annual periods as indications of future operating performance. Our executive officers, directors and principal stockholders maintain the ability to significantly influence all matters submitted to stockholders for approval. As of December 31, 2021, our executive officers, directors and principal stockholders, in the aggregate, beneficially owned shares representing a significant percentage of our capital stock. As a result, if these stockholders were to choose to act together, they would be able to significantly influence all matters submitted to our stockholders for approval, as well as our management and affairs. For example, these persons could significantly influence the election of directors and approval of any merger, consolidation or sale of all or substantially all of our assets. This concentration of voting power could delay or prevent an acquisition of our company on terms that other stockholders may desire. Our ability to use our net operating loss carryforwards and certain other tax attributes may be limited. Under Section 382 of the Code and corresponding provisions of state law, if a company undergoes an “ownership change,” generally defined as a greater than 50% change (by value) in its equity ownership by certain stockholders over a three-year period, the company’s ability to use its pre-change net operating loss carryforwards and other pre-change tax attributes (such as research tax credits) to offset its post-change taxable income may be limited. Our prior equity offerings and other changes in our stock ownership, some of which are outside of our control, may have resulted or could in the future result in an ownership change. We completed a review of our changes in ownership through December 31, 2021, and determined that we did not have a qualified ownership change since our last review as of December 31, 2020. Future ownership changes under Section 382 may limit the amount of net operating loss and tax credit carryforwards that we could potentially utilize to reduce future tax liabilities. There is also a risk that due to regulatory changes, such as suspensions on the use of net operating losses, or other unforeseen reasons, our existing net operating losses could expire or otherwise become unavailable to offset future income tax liabilities. The Tax Act, as amended by the CARES Act, includes changes to U.S. federal tax rates and the rules governing net operating loss carryforwards that may significantly impact our ability to utilize our net operating losses to offset taxable income in the future. In addition, state net operating losses generated in one state cannot be used to offset income generated in another state. For these reasons we may be unable to use a material portion of our net operating losses and other tax attributes. Our effective tax rate may fluctuate, and we may incur obligations in tax jurisdictions in excess of accrued amounts. We are subject to taxation in numerous U.S. states and territories. As a result, our effective tax rate is derived from a combination of applicable tax rates in the various places that we operate. In preparing our financial statements, we estimate the amount of tax that will become payable in each of such places. Nevertheless, our effective tax rate may be different from previous periods or our current expectations due to numerous factors, including as a result of changes in the mix of our profitability from state to state, the results of examinations and audits of our tax filings, our inability to secure or sustain acceptable agreements with tax authorities, changes in accounting for income taxes and changes in tax laws. Any of these factors may result in tax obligations in excess of amounts accrued in our financial statements. We incur costs as a result of operating as a public company, and our management is required to devote substantial time to compliance initiatives and corporate governance practices. We have incurred and will continue to incur significant legal, accounting and other expenses as a public company. The Sarbanes-Oxley Act of 2002, the Dodd-Frank Wall Street Reform and Consumer Protection Act, the listing requirements of The Nasdaq Global Select Market and other applicable securities rules and regulations impose various requirements on public companies, including establishment and maintenance of effective disclosure and financial controls and corporate governance practices. Stockholder activism, the current political environment and the current high level of government intervention and regulatory reform may lead to substantial new regulations. Our management and other personnel devote, and will need to continue to devote, a substantial amount of time to these compliance initiatives. Moreover, these rules and regulations increase our legal and financial compliance costs and make some activities more time-consuming and costly. There can be no assurance that we will repurchase shares of our common stock or that we will repurchase shares at favorable prices. On March 25, 2021, we announced that our board of directors authorized the Repurchase Program for the repurchase of up to $1.2 billion of our outstanding shares of common stock. On March 31, 2021, in connection with the Repurchase Program, we entered into a definitive share repurchase agreement with BMS to repurchase 7.1 million shares of our common stock held by 55 Table of Contents certain subsidiaries of BMS for an aggregate purchase price of $344.5 million, or $48.38 per share. This repurchase was completed on April 5, 2021. Further, on April 2, 2021, in connection with the Repurchase Program, we entered into a Rule 10b5-1 repurchase plan pursuant to which we repurchased approximately 9.1 million shares of common stock for $458.0 million, or $50.35 per share, under the plan. In total, as of December 31, 2021, we have repurchased 16.2 million shares of common stock for $802.5 million under the Repurchase Program. On October 5, 2021, we terminated our Rule 10b5-1 share repurchase program and on October 13, 2021 entered into a Rule 10b-18 repurchase plan that allows us to conduct open market repurchases over time up to our remaining authorization. The amount and timing of share repurchases are subject to capital availability, our cash balances and future capital requirements and our determination that share repurchases are in the best interest of our stockholders and are in compliance with all respective laws and our applicable agreements. We have paused our share repurchases and for the foreseeable future, we expect that our capital allocation will be prioritized towards opportunities to accelerate programs in our development pipeline and/or pursue potential complementary business development opportunities. A reduction in repurchases under, or the completion of, our Repurchase Program could have a negative effect on our stock price. We can provide no assurance that we will repurchase shares at favorable prices, if at all. Because we do not anticipate paying any cash dividends on our capital stock in the foreseeable future, capital appreciation, if any, will be the sole source of gain for our stockholders. We have never declared or paid cash dividends on our capital stock. We currently intend to retain all of our future earnings, if any, to finance the growth and development of our business. As a result, capital appreciation, if any, of our common stock will be the sole source of gain for our stockholders for the foreseeable future. Item 1B. Unresolved Staff Comments None. Item 2. Properties We currently lease approximately 146,000 square feet at 88 Sidney Street, 43,000 square feet at 64 Sidney Street, and 13,000 square feet at 38 Sidney Street, Cambridge, Massachusetts. All leases, as amended, expire on February 29, 2028. At the end of the initial lease period, we have the option to extend the leases at all facilities for two consecutive five year periods at the fair market rent at the time of the extension. In August 2021, we entered into a long- term sublease agreement for 13,000 square feet of the office space at 38 Sidney Street Cambridge, Massachusetts. The term of the lease runs until December 2024. We believe our existing facilities are adequate for our current needs and that additional space will be available in the future on commercially reasonable terms as needed. Item 3. Legal Proceedings As of December 31, 2021, we were not a party to any material legal or arbitration proceedings. No governmental proceedings are pending or, to our knowledge, contemplated against us. We are not a party to any material proceedings in which any director, member of senior management or affiliate of ours is either a party adverse to us or our subsidiaries or has a material interest adverse to us or our subsidiaries. Item 4. Mine Safety Disclosures Not applicable. 56 Table of Contents PART II Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities Market Information Our common stock has been publicly traded on the Nasdaq Global Select Market under the symbol “AGIO” since July 24, 2013. Prior to that time, there was no public market for our common stock. Holders As of February 18, 2022, there were approximately 9 holders of record of our common stock. This number does not include beneficial owners whose shares are held by nominees in street name. Dividends We have not declared or paid any cash dividends on our capital stock since our inception. We intend to retain future earnings, if any, to finance the operation and expansion of our business and do not anticipate paying any cash dividends to holders of common stock in the foreseeable future. Securities Authorized for Issuance under Equity Compensation Plans Information about our equity compensation plans is incorporated herein by reference to Item 12, Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters, of this Annual Report on Form 10-K. Performance Graph The following performance graph and related information shall not be deemed to be “soliciting material” or to be “filed” with the Securities and Exchange Commission, or SEC, for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities under that Section, nor shall such information be incorporated by reference into any future filing under the Exchange Act or the Securities Act of 1933, as amended, or the Securities Act, except to the extent that we specifically incorporate it by reference into such filing. The following graph compares the performance of our common stock to the NASDAQ Composite Index and the NASDAQ Biotechnology Index from December 31, 2016 through December 31, 2021. The comparison assumes $100 was invested after the market closed on December 31, 2016 in our common stock and in each of the foregoing indices, and it assumes reinvestment of dividends, if any. The stock price performance included in this graph is not necessarily indicative of future stock price performance. 57 Table of Contents Recent Sales of Unregistered Securities None. Purchases of Equity Securities by the Issuer or Affiliated Purchasers On March 25, 2021, we announced that our board of directors authorized a share repurchase program to purchase up to $1.2 billion of our outstanding shares of common stock, or the Repurchase Program. Under the Repurchase Program, we are authorized to repurchase shares through open market purchases, privately negotiated block sales and through Rule 10b5-1 repurchase plans. The Repurchase Program has no expiration date. On March 31, 2021, in connection with the Repurchase Program, we entered into a definitive share repurchase agreement with BMS to repurchase 7.1 million shares of our common stock held by certain subsidiaries of BMS for an aggregate purchase price of $344.5 million, or $48.38 per share. This repurchase was completed on April 5, 2021. On April 2, 2021, in connection with the Repurchase Program, we entered into a Rule 10b5-1 repurchase plan to repurchase up to $600 million of shares of our common stock of the $1.2 billion shares authorized. As of December 31, 2021, we have repurchased approximately 9.1 million shares of common stock for $458.0 million, or $50.35 per share, under the Rule 10b5-1 repurchase plan. In total, as of December 31, 2021, we have repurchased 16.2 million shares of common stock for $802.5 million, or $49.49 per share, under the Repurchase Program. On October 5, 2021, we terminated our Rule 10b5-1 share repurchase plan and on October 13, 2021 we entered into a Rule 10b-18 repurchase plan that allows us to conduct open market repurchases over time up to our remaining authorization under the Repurchase Program. As of December 31, 2021, we have not repurchased any shares under the Rule 10b-18 repurchase plan. The amount and timing of share repurchases are subject to capital availability, our cash balances and future capital requirements and our determination that share repurchases are in the best interest of our stockholders and are in compliance with all respective laws and our applicable agreements. We have paused our share repurchases and for the foreseeable future, we expect that our capital allocation will be prioritized towards opportunities to accelerate programs in our development pipeline and/or pursue potential complementary business development opportunities. The table below summarizes the repurchases made under our Repurchase Program during the three months ended December 31, 2021: Period October 1, 2021 through October 31, 2021 November 1, 2021 through November 30, 2021 December 1, 2021 through December 31, 2021 Total Issuer Purchases of Equity Securities Total Number of Shares Purchased(1) Average Price Paid per Share Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (1) Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (in millions) 416,259 $ — $ — $ 416,259 $ 45.76 — — 45.76 416,259 $ — $ — $ 416,259 397.5 — — (1) All shares repurchased by us during the three months ended December 31, 2021, were repurchased pursuant to the Repurchase Program, as described above. Item 6. Reserved. 58 Table of Contents Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations You should read the following discussion and analysis of our financial condition and results of operations together with our consolidated financial statements and the related notes and other financial information included elsewhere in this Annual Report on Form 10-K. Some of the information contained in this discussion and analysis or set forth elsewhere in this Annual Report on Form 10-K, including information with respect to our plans and strategy for our business, includes forward-looking statements that involve risks and uncertainties. You should review "Item 1A, Risk Factors" of this Annual Report on Form 10-K for a discussion of important factors that could cause actual results to differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis. Overview We are a biopharmaceutical company committed to transforming patients’ lives through scientific leadership in the field of cellular metabolism and adjacent areas of biology, with the goal of creating differentiated, small molecule medicines for genetically defined diseases. We take a systems biology approach to deeply understand disease states, drive the discovery and validation of novel therapeutic targets, and define patient selection strategies, thereby increasing the probability that our experimental medicines will have the desired therapeutic effect, while cultivating connections with patient communities, healthcare professionals, partners and colleagues to discover, develop and deliver potential therapies for genetically defined diseases, or GDDs. The lead product in our genetically defined disease, or GDD, portfolio, PYRUKYND® (mitapivat), is an activator of both wild-type and a variety of mutant pyruvate kinase, or PK, enzymes, for the potential treatment of hemolytic anemias. In February 2022, the FDA approved PYRUKYND® for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States and we expect to commercially launch PYRUKYND® in the first quarter of 2022. In June 2021, we submitted a marketing authorization application, or MAA, to the EMA for PYRUKYND® for the treatment of adults with PK deficiency in the European Union. The MAA has passed validation, and the regulatory review process is ongoing. In addition, we are currently evaluating PYRUKYND® for the treatment of α- and β-thalassemia and sickle cell disease, or SCD, in the ongoing clinical trials described below and we intend to evaluate PYRUKYND® in pediatric patients with PK deficiency in the planned clinical trials described below. We are also developing AG-946, a novel, next-generation PK activator, for the potential treatment of hemolytic anemias and other indications, including SCD and anemia associated with low- to intermediate-risk myelodysplastic syndrome, or L-IR MDS. In addition to the aforementioned development programs, we foster a productive research engine and are seeking to advance multiple novel, investigational therapies in clinical and preclinical development in our focus area of GDDs, based on our scientific leadership in the field of cellular metabolism and adjacent areas of biology. Sale of Oncology Business to Servier Pharmaceuticals, LLC (Servier) On March 31, 2021, we completed the sale of our oncology business to Servier Pharmaceuticals LLC, or Servier. The transaction included the sale of our oncology business, including TIBSOVO®, our clinical-stage product candidates vorasidenib, AG-270 and AG-636, and our oncology research programs for a payment of approximately $1.8 billion in cash at the closing, subject to certain adjustments, and a payment of $200 million in cash, if, prior to January 1, 2027, vorasidenib is granted new drug application, or NDA, approval from the U.S. Food and Drug Administration, or FDA, with an approved label that permits vorasidenib’s use as a single agent for the adjuvant treatment of patients with Grade 2 glioma that have an isocitrate dehydrogenase 1 or 2 mutation (and, to the extent required by such approval, the vorasidenib companion diagnostic test is granted an FDA premarket approval), as well as a royalty of 5% of U.S. net sales of TIBSOVO® from the close of the transaction through loss of exclusivity, and a royalty of 15% of U.S. net sales of vorasidenib from the first commercial sale of vorasidenib through loss of exclusivity. Servier also acquired our co-commercialization rights for Bristol Myers Squibb’s IDHIFA® and the right to receive a $25.0 million potential milestone payment under our prior collaboration agreement with Celgene Corporation, or Celgene, and following the sale Servier is responsible for conducting certain clinical development activities within the IDHIFA® development program. The oncology business met the criteria within Accounting Standards Codification 205-20 to be reported as discontinued operations because the transaction was a strategic shift in business that had a major effect on our operations and financial results. Therefore, we have reported the historical results of the oncology business including the results of operations and cash flows as discontinued operations, and related assets and liabilities were retrospectively reclassified as assets and liabilities of discontinued operations for all periods presented herein. Unless otherwise noted, applicable amounts in the prior year have been recast to conform to this discontinued operations presentation. Refer to Note 3 of our consolidated financial statements included in this Annual Report on Form 10-K for additional information. A more complete description of our business prior to the consummation of the transaction is included in Item 1. “Business”, in Part I of the Annual Report on Form 10-K for the year 59 Table of Contents ended December 31, 2020 that was previously filed with the Securities and Exchange Commission, or SEC, on February 25, 2021. Financial Operations Overview Impact of COVID-19 on our Business As of December 31, 2021, we have not experienced a significant financial or supply chain impact directly related to the COVID-19 pandemic but have experienced some disruptions to clinical operations, including timelines to complete patient enrollment in some of our clinical trials, as further described below. We are continuing to serve third parties while taking precautions to provide a safe work environment for our employees and third parties. Our lab- based employees who need to be onsite to fulfill their job responsibilities have been onsite since late May 2020, and we have opened our Cambridge office to employees who prefer to work onsite. Our field-based employees engage with healthcare providers and other third parties remotely and, where local regulations allow, on a limited in-person basis. We are conducting our return to work program under strict guidelines as required by federal, state, and local authorities. Effective November 8, 2021, we will require all employees, regardless of role or work location, to be fully vaccinated against COVID-19, as defined by the Center of Disease Control and Prevention's guidelines, subject to limited exceptions. We have been monitoring our supply chain network for disruptions due to the COVID-19 pandemic, and our third-party manufacturers remain largely unaffected, with any campaign delays experienced to date being limited to a few days in duration. Although global shipping continues to be disrupted due to the pandemic, we have not experienced a supply impact. The extent of the pandemic’s effect on our operational and financial performance will depend in large part on future developments, which cannot be predicted with confidence at this time. Future developments include changes in the duration, scope and severity of the pandemic, including any variant strains of the COVID-19 virus, the actions taken to contain or mitigate its impact, the impact on governmental programs and budgets, the supply, distribution and efficacy of vaccines, and the resumption of widespread economic activity. Any prolonged material disruption of our employees, suppliers, manufacturing, or third parties could negatively impact our consolidated financial position, consolidated results of operations and consolidated cash flows. As a result, we may have to take further actions that we determine are in the best interests of our employees or as required by federal, state, or local authorities. General Since inception, our operations have primarily focused on organizing and staffing our company, business planning, raising capital, assembling our core capabilities in cellular metabolism, identifying potential product candidates, undertaking preclinical studies, conducting clinical trials, establishing a commercial infrastructure, preparing for the commercial launch of PYRUKYND® and, prior to the sale of our oncology business to Servier on March 31, 2021, marketing TIBSOVO® and IDHIFA®. Through March 31, 2021, we have financed our operations primarily through proceeds from the sale of our royalty rights, commercial sales of TIBSOVO®, funding received from our collaboration agreements, private placements of our preferred stock, our initial public offering of our common stock and concurrent private placement of common stock to an affiliate of Celgene, and our follow-on public offerings. Following the sale of our oncology business to Servier on March 31, 2021, we expect to finance our operations primarily through cash on hand, royalty payments from Servier with respect to U.S. net sales of TIBSOVO®, the potential milestone payment from Servier if vorasidenib is approved by the FDA, and potential sales of PYRUKYND® if successfully launched by us and, potentially, collaborations, strategic alliances, licensing arrangements and other nondilutive strategic transactions. Additionally, since inception, we have incurred significant operating losses. Our net income for the year ended December 31, 2021 was $1,604.7 million and our net losses for the years ended December 31, 2020 and 2019 were $327.4 million and $411.5 million, respectively. As of December 31, 2021, we had an accumulated deficit of $238.8 million. The net income we generated in the year ended December 31, 2021 was primarily due to the sale of our oncology business to Servier, which was consummated on March 31, 2021. Following the consummation of the sale of our oncology business, we expect to incur significant expenses and net losses until such time we are able to report profitable results. Our net losses may fluctuate significantly from year to year. We expect that we will continue to incur significant expenses as we continue to advance and expand clinical development activities for our lead programs: PYRUKYND®, and AG-946; continue to discover and validate novel targets and drug product candidates; expand and protect our intellectual property portfolio; and hire additional commercial, development and scientific personnel. Research and development expenses Research and development activities are central to our business model. Product candidates in later stages of clinical development generally have higher development costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials. We expect research and development costs related to our GDD portfolio to increase significantly for the foreseeable future as our product candidate development programs progress. However, the successful development of our product candidates is highly uncertain. As such, at this time, we cannot reasonably estimate or 60 Table of Contents know the nature, timing and estimated costs of the efforts that will be necessary to complete the remainder of the development and to commercialize these product candidates. While PYRUKYND® was only recently approved by the FDA, we are unable to predict when future net cash inflows will commence from PYRUKYND® or any of our product candidates. This is due to the numerous risks and uncertainties associated with developing medicines, including the uncertainty of: • • • • • • • establishing an appropriate safety profile with an investigational new drug application, or IND, and/or NDA-enabling toxicology and clinical trials; the successful enrollment in, and completion of, clinical trials; the receipt of marketing approvals from applicable regulatory authorities; establishing compliant commercial manufacturing capabilities or making arrangements with third-party manufacturers; obtaining and maintaining patent and trade secret protection and regulatory exclusivity for our product candidates; launching commercial sales of the products, if and when approved, whether alone or in collaboration with others; and maintaining an acceptable safety profile of the products following approval. A change in the outcome of any of these variables with respect to the development of any of our product candidates would significantly change the costs and timing associated with the development of that product candidate. Research and development expenses consist primarily of costs incurred for our research activities, including our drug discovery efforts, and the development of our product candidates, which include: • • • • employee-related expenses, including salaries, benefits and stock-based compensation expense; expenses incurred under agreements with third parties, including contract research organizations, or CROs, that conduct research and development and both preclinical and clinical activities on our behalf, and the cost of consultants; the cost of lab supplies and acquiring, developing and manufacturing preclinical and clinical study materials; and facilities, depreciation, and other expenses, which include direct and allocated expenses for rent and the maintenance of facilities, insurance and other operating costs. The following summarizes our most advanced programs: PYRUKYND® (mitapivat): First-in-Class PK Activator We are developing PYRUKYND® for the treatment of PK deficiency and other hemolytic anemias such as thalassemia and SCD. PYRUKYND® is an orally available small molecule and a potent activator of the wild-type and mutated PKR enzymes. To date, we have demonstrated in clinical trials that treatment with PYRUKYND® can lead to durable sustained increases in hemoglobin in patients with amenable mutations in the PKR gene and a statistically significant and clinically meaningful reduction in transfusion burden in regularly transfused patients with PK deficiency, and we have observed in clinical trials of PYRUKYND® durable improvements in hemoglobin concentration and markers of hemolysis and ineffective erythropoeiesis in both α- and β- halassemia patients and reductions in 2,3-DPG and increases in ATP in SCD patients. In February 2022, the FDA approved PYRUKYND® for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States. In June 2021, we submitted a marketing authorization application, or MAA, to the EMA for the treatment of adults with PK deficiency the European Union. The MAA has passed validation, and the regulatory review process is ongoing. We have worldwide development and commercial rights to PYRUKYND® and expect to fund the future development and commercialization costs related to this program. PYRUKYND® has been granted orphan drug designation for the treatment of PK deficiency by the FDA and the EMA. Additionally, PYRUKYND® has received orphan drug designation from the FDA for the treatment of thalassemia and sickle cell disease. We have built our US commercial infrastructure to support the commercial launch of PYRUKYND in the US and continue to evaluate all options for the commercialization and continued development of PYRUKYND® outside of the United States in order to maximize the benefit to patients and value to our shareholders, including through exploring potential partnership opportunities. We are evaluating PYRUKYND® in the following clinical trials: • ENERGIZE, a phase 3, double-blind, randomized, placebo-controlled multicenter study evaluating the efficacy and safety of PYRUKYND® as a potential treatment for adults with non-transfusion-dependent α- or β-thalassemia, defined as ≤5 RBC units during the 24-week period before randomization and no RBC transfusions ≤8 weeks before providing informed consent or during the screening period. The primary endpoint of the trial is percentage of patients with hemoglobin response, defined as a ≥1.0 g/dL increase in average hemoglobin concentration from Week 12 through Week 24 compared with baseline. Secondary endpoints include markers of hemolysis and ineffective erythropoiesis, as well as patient- reported outcome measures. This trial is enrolling patients, and we expect to enroll a meaningful portion of the patients by the end of 2022. 61 Table of Contents • • • • • • • ENERGIZE-T, a phase 3, double-blind, randomized, placebo-controlled multicenter study evaluating the efficacy and safety of PYRUKYND® as a potential treatment for adults with transfusion-dependent α- or β-thalassemia, defined as 6 to 20 RBC units transfused and ≤6-week transfusion-free period during the 24-week period before randomization. The primary endpoint of the trial is percentage of patients with transfusion reduction response, defined as a ≥50% reduction in transfused RBC units with a reduction of ≥2 units of transfused RBCs in any consecutive 12-week period through Week 48 compared with baseline. Secondary endpoints include additional transfusion reduction measures and percentage of participants with transfusion-independence. This trial is enrolling patients, and we expect to enroll a meaningful portion of the patients by the end of 2022. RISE UP, a phase 2/3 study evaluating the efficacy and safety of PYRUKYND® in SCD patients who are 16 years of age or older, have had between two and 10 sickle cell pain crises in the past 12 months, and have hemoglobin within the range of 5.5 to 10.5 g/dL during screening. The phase 2 portion of the trial, which has initiated, includes a 12-week randomized, placebo-controlled period in which participants will be randomized in a 1:1:1 ratio to receive 50 mg PYRUKYND® twice daily, 100 mg PYRUKYND® twice daily or matched placebo. The primary endpoints are hemoglobin response, defined as ≥1 g/dL increase in average hemoglobin concentration from Week 10 through Week 12 compared to baseline, and safety. These data will be used to establish a clear dosing paradigm for the phase 3 portion. The phase 3 portion includes a 52-week randomized, placebo-controlled period in which participants will be randomized in a 2:1 ratio to receive the recommended PYRUKYND® dose level or placebo. The primary endpoints are hemoglobin response, defined as ≥1 g/dL increase in average hemoglobin from baseline to Week 52, and annualized rate of sickle cell pain crises. Participants who complete either the phase 2 or phase 3 portion will have the option to move into a 216-week open-label extension period to continue to receive PYRUKYND®. The phase 2 portion of this trial is enrolling patients, and we expect to complete enrollment in the phase 2 portion of the trial by the end of 2022. An extension study evaluating the long-term safety, tolerability and efficacy of treatment with PYRUKYND® in patients from ACTIVATE and ACTIVATE-T, our completed pivotal trials of PYRUKYND® in not regularly transfused and regularly transfused patients with PK deficiency. An extension study evaluating the long-term safety, tolerability and efficacy of treatment with PYRUKYND® in patients from DRIVE PK, our completed global phase 2, first-in-patient, open-label safety and efficacy clinical trial of PYRUKYND® in adult, not regularly transfused patients with PK deficiency. An extension study evaluating the safety, tolerability and efficacy of treatment with PYRUKYND® in patients from our completed phase 2, open- label safety and efficacy clinical trial of PYRUKYND® in adults with not-transfusion-dependent α- and β-thalassemia. In collaboration with the National Institutes of Health, or NIH, we are evaluating PYRUKYND® in a phase 1 trial in patients with SCD pursuant to a cooperative research and development agreement. The core trial period has completed. The long-term extension study is ongoing. In June 2020, clinical proof of concept was established based on a preliminary analysis of the data from this trial. In collaboration with UMC Utrecht, or UMC, we are evaluating PYRUKYND® in patients with SCD pursuant to an investigator sponsored trial agreement. The trial is ongoing and enrolling patients, although UMC experienced disruptions related to the COVID-19 pandemic. We expect to initiate two phase 3 trials of PYRUKYND®, ACTIVATE-kids and ACTIVATE-kidsT, in not regularly transfused and regularly transfused pediatric patients with PK deficiency in mid-2022. AG-946: Novel, Next-generation PKR Activator We are developing AG-946, a novel, next-generation PKR activator, for the potential treatment of hemolytic anemias. We are evaluating AG-946, in a phase 1 trial of AG-946 in healthy volunteers and in patients with SCD. The trial is currently enrolling healthy volunteers, and we expect to initiate the SCD patient cohort of this trial in the first half of 2022. We expect to initiate a phase 2a study of AG-946 in adults with L-IR MDS by year-end 2022. Other research and platform programs Other research and platform programs include activities related to exploratory efforts, target validation and lead optimization for our discovery and follow- on programs, and our proprietary metabolomics platform. Selling, general and administrative expenses Selling, general and administrative expenses consist primarily of salaries and other related costs, including stock-based compensation, for personnel in executive, finance, business development, commercial, legal and human resources functions. Other significant costs include facility-related costs not otherwise included in research and development expenses, legal fees relating to patent and corporate matters, and fees for accounting and consulting services. 62 Table of Contents We anticipate that our selling, general and administrative expenses will increase in the future to support continued research and development activities and ongoing and future commercialization activities related to our GDD portfolio, including the commercialization of PYRUKYND® and any of our other product candidates. These increases will likely include increased costs related to the hiring of additional personnel and fees to outside consultants, lawyers and accountants, among other expenses. Critical Accounting Policies and Significant Judgments and Estimates Our management’s discussion and analysis of our financial condition and results of operations are based on our consolidated financial statements, which we have prepared in accordance with accounting principles generally accepted in the United States. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reporting periods. On an ongoing basis, we evaluate our estimates and judgments. We base our estimates on historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. While our significant accounting policies are described in more detail in the notes to our consolidated financial statements included in this Annual Report on Form 10-K, we believe that the following accounting policies are the most critical in fully understanding and evaluating our financial condition and results of operations and are policies that require a significant level of judgment and estimates. Accrued research and development expenses As part of the process of preparing our consolidated financial statements, we are required to estimate our accrued expenses. This process involves reviewing quotations and contracts, identifying services that have been performed on our behalf and estimating the level of service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified of the actual cost. Certain service providers invoice us in arrears for services performed or when contractual milestones are met. We make estimates of our accrued expenses as of each balance sheet date in our financial statements based on facts and circumstances known to us at that time. We periodically confirm the accuracy of our estimates with the service providers and make adjustments if necessary. Examples of estimated accrued research and development expenses include fees paid to: (i) CROs and other third parties in connection with clinical studies and preclinical development activities; (ii) investigative sites in connection with clinical studies; and (iii) third parties related to product manufacturing, development and distribution of clinical supplies. We base our expenses related to CROs on our estimates of the services received and efforts expended pursuant to quotes and contracts with CROs that conduct research and development on our behalf. The financial terms of these agreements are subject to negotiation, vary from contract to contract and may result in uneven payment flows. There may be instances in which payments made to our vendors will exceed the level of services provided and result in a prepayment of the research and development expense. In accruing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from our estimate, we adjust the accrual or prepaid accordingly. Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and could result in us reporting amounts that are too high or too low in any particular period. Stock-based compensation We account for stock-based compensation awards in accordance with ASC 718, Compensation –Stock Compensation. For stock-based awards granted to employees, non-employees and members of the board of directors for their services and for participation in our employee stock purchase plan, we estimate the grant date fair value of each option award using the Black-Scholes option-pricing model. The use of the Black-Scholes option-pricing model requires us to make assumptions with respect to the expected term of the option, the expected volatility of the common stock consistent with the expected life of the option, risk-free interest rates and expected dividend yields of the common stock. Expected term. We use the “simplified method” as prescribed by the Securities and Exchange Commission Staff Accounting Bulletin No. 107, Share Based Payments, to estimate the expected term of stock option grants. Under this approach, the weighted-average expected life is presumed to be the average of the contractual term of ten years and the weighted-average vesting term of the stock options, taking into consideration multiple vesting tranches. We utilize this method due to lack of historical data and the plain-vanilla nature of our share-based awards. 63 Table of Contents Volatility. The expected volatility has been determined using Agios' historical volatilities for a period equal to the expected term of the option grant. Risk-free rate. The risk-free rate is based on the yield curve of U.S. Treasury securities with periods commensurate with the expected term of the options being valued. Dividends. We have never paid, and do not anticipate paying, any cash dividends in the foreseeable future, and, therefore, use an expected dividend yield of zero in the option-pricing model. Forfeitures. We account for forfeitures as they occur and, therefore, do not estimate forfeitures. For awards subject to service-based vesting conditions, we recognize stock-based compensation expense equal to the grant date fair value of stock options on a straight-line basis over the requisite service period. For awards subject to both performance and service-based vesting conditions, we recognize stock- based compensation expense over the remaining service period if the performance condition is considered probable of achievement using management’s best estimates. Discontinued Operations We accounted for the sale of our oncology business in accordance with Accounting Standards Codification, ASC, 205 Discontinued Operations and Accounting Standards Update, ASU, No. 2014-08, Reporting of Discontinued Operations and Disclosures of Disposals of Components of an Entity. We followed the held-for-sale criteria as defined in ASC 360 and ASC 205. ASC 205 requires that a component of an entity that has been disposed of or is classified as held for sale and has operations and cash flows that can be clearly distinguished from the rest of the entity be reported as assets held for sale and discontinued operations. In the period a component of an entity has been disposed of or classified as held for sale, the results of operations for the periods presented are reclassified into separate line items in the consolidated statements of operations. Assets and liabilities are also reclassified into separate line items on the related consolidated balance sheets for the periods presented. The statements of cash flows for the periods presented are also reclassified to reflect the results of discontinued operations as separate line items. ASU 2014-08 requires that only a disposal of a component of an entity, or a group of components of an entity, that represents a strategic shift that has, or will have, a major effect on the reporting entity’s operations and financial results be reported in the financial statements as discontinued operations. ASU 2014-08 also provides guidance on the financial statement presentations and disclosures of discontinued operations. Due to the sale of our oncology business during the first quarter of 2021, in accordance with ASC 205, we have classified the results of the oncology business as discontinued operations in our consolidated statements of operations and cash flows for all periods presented, see Note 3, Discontinued Operations. All assets and liabilities associated with our oncology business were therefore classified as assets and liabilities of discontinued operations in our consolidated balance sheets for the periods presented. All amounts included in the notes to the consolidated financial statements relate to continuing operations unless otherwise noted. Results of Operations Certain prior-year amounts have been reclassified to conform with current presentation. Comparison of years ended December 31, 2021, 2020 and 2019 Total Operating Expenses (In thousands) Cost and expenses: Research and development Selling, general and administrative Total Operating Expenses 2021 2020 2019 $ $ 256,973 $ 121,445 378,418 $ 220,811 $ 115,105 335,916 $ 214,262 102,007 316,269 Total Operating Expenses – 2021 vs 2020 – The increase in total operating expenses of $42.5 million in 2021 compared to 2020 was primarily due to an increase of $36.2 million in research and development expenses, which is described below under Research and Development Expenses, and an increase of $6.3 million in selling, general and administrative expense due to higher personnel costs related to additional hiring for our sales workforce and commercial launch preparation activities in anticipation of the FDA approval of PYRUKYND®. Included in selling, general and administrative expenses is approximately $4.4 million of reimbursable transition related services we provided to Servier related to the sale of the oncology business. Total Operating Expenses – 2020 vs 2019 – The increase in total operating expenses of $19.6 million in 2020 compared to 2019 was primarily due to an increase of $13.1 million in selling, general and administrative expense due to higher personnel costs, including stock-based compensation expense, related to additional hiring for our workforce. Included in selling, general and administrative expense is approximately $5.0 million in professional fees related to entering into the sale transaction with 64 Table of Contents Servier. The increase of $6.5 million in research and development expenses is described below under Research and Development Expenses. Research and Development Expenses Our research and development expenses, by major program, are outlined in the table below: (In thousands) PK activator (PYRUKYND®) Novel PK activator (AG-946) Other research and platform programs Total direct research and development expenses Compensation and related expenses Facilities and IT related expenses & other Other expenses - transition services Total indirect research and development expenses Total research and development expense 2021 2020 2019 73,999 $ 10,658 22,959 107,616 95,198 44,767 9,392 149,357 256,973 $ 48,669 $ 8,378 13,790 70,837 99,923 50,051 — 149,974 220,811 $ 47,481 5,849 13,615 66,945 98,700 48,617 — 147,317 214,262 $ $ Total Research and Development Expenses – 2021 vs 2020 – The increase in research and development expenses of $36.2 million in 2021 compared to 2020 was primarily due to a $36.8 million increase in our direct expenses. The increase in direct expenses was primarily due to a $25.3 million increase in PYRUKYND® costs and a $9.2 million increase in other research and platform programs. The increase in PYRUKYND® costs was primarily due to startup costs for the initiated phase 3 trials of PYRUKYND®, ENERGIZE and ENERGIZE-T, and the phase 2/3 trial of PYRUKYND® in patients with SCD, RISE UP, offset by closeouts of ACTIVATE & ACTIVATE-T studies, and commercial launch preparation activities. The increase in other research and platform programs costs was primarily driven by planned increased activity on various exploratory activities. Included in total indirect research and development expenses was $9.4 million of reimbursable transition related services we provided to Servier related to the sale of the oncology business for discovery, clinical development, technical operations, and related activities which will continue for periods ranging from one month to approximately one year after March 31, 2021. Total Research and Development Expenses – 2020 vs 2019 – The increase in research and development expenses of $6.5 million in 2020 compared to 2019 was primarily due to a $3.9 million increase in our direct expenses and a $2.7 million increase in our indirect expenses. The increase in direct expenses was primarily due to a $2.5 million increase for AG-946 driven by the phase 1 trial start. Other Income and Expense (In thousands) Gain on sale of oncology business Interest income, net Other income, net 2021 2020 2019 $ 6,639 $ 836 14,433 — $ 6,611 — — 14,861 — Other Income and Expense- 2021 vs 2020 – The increase in other income, net in 2021 compared to 2020, primarily relates to approximately $13.8 million of reimbursable transition related services and fees for the sale of the oncology business for the year ended December 31, 2021. The increase in gain on sale of oncology business primarily relates to income from royalties on U.S. net sales of TIBSOVO® by Servier of approximately $6.6 million for the year ended December 31, 2021. The decrease in interest income, net is primarily attributable to a decrease in interest rates. Other Income and Expense – 2020 vs 2019 – The decrease in interest income, net in 2020 compared to 2019, is primarily attributable to the decrease in interest rates at the end of the first quarter of 2020, which reduced the interest rates earned by 0.50% to 1.50% from prior periods and the decrease in our outstanding marketable securities balance for the year ended December 31, 2020. 65 Table of Contents Loss from Operations and Net Income (Loss) (In thousands) Net loss from continuing operations Net income (loss) from discontinued operations, net of tax Net income (loss) $ 2021 (356,510) $ 1,961,225 1,604,715 2020 (329,305) $ 1,935 (327,370) 2019 (301,408) (110,064) (411,472) Loss from Operations and Net Income (Loss) – 2021 vs 2020 – The increase in net loss from continuing operations in 2021 compared to 2020 was primarily driven by higher research and development expenses discussed above under Research and Development Expenses, partially offset by $13.9 million of reimbursable transition related services and fees related to the sale of the oncology business and a $6.6 million gain on sale of oncology business related to income from royalties on U.S. net sales of TIBSOVO® by Servier. The change in net income (loss) from discontinued operations and net income (loss) for the year ended December 31, 2021 compared to the year ended December 31, 2020 was primarily driven by the sale of our oncology business to Servier for approximately $1.8 billion in cash in the first quarter of 2021, which is included within net income from discontinued operations. Loss from Operations and Net Income (Loss) – 2020 vs 2019 – The increase in net loss from continuing operations in 2020 compared to 2019 was primarily driven by higher operating expenses as described above in Total Operating Expenses. The decrease in net loss in 2020 compared to 2019 was primarily driven by net income from discontinued operations for the year ended December 31, 2020 from the sale of the oncology business discussed above. Liquidity and Capital Resources Sources of liquidity Since our inception, and through March 31, 2021, we financed our operations primarily through proceeds from the sale of our royalty rights, commercial sales of TIBSOVO®, funding received from our collaboration agreements, private placements of our preferred stock, our initial public offering of our common stock and concurrent private placement of common stock to an affiliate of Celgene, and our follow-on public offerings. Following the sale of our oncology business to Servier on March 31, 2021, we have financed and expect to continue to finance our operations primarily through cash on hand, royalty payments from Servier with respect to U.S. net sales of TIBSOVO®, the potential milestone payment from Servier if vorasidenib is approved by the FDA, potential sales of PYRUKYND®, if successfully launched by us and, potentially, collaborations, strategic alliances, licensing arrangements and other nondilutive strategic transactions. On March 31, 2021, we completed the sale of our oncology business to Servier Pharmaceuticals LLC, or Servier. The transaction included the sale of our oncology business, including TIBSOVO®, our clinical-stage product candidates vorasidenib, AG-270 and AG-636, and our oncology research programs for a payment of approximately $1.8 billion in cash at the closing, subject to certain adjustments, and a payment of $200 million in cash, if, prior to January 1, 2027, vorasidenib is granted new drug application, or NDA, approval from the U.S. Food and Drug Administration, or FDA, with an approved label that permits vorasidenib’s use as a single agent for the adjuvant treatment of patients with Grade 2 glioma that have an isocitrate dehydrogenase 1 or 2 mutation (and, to the extent required by such approval, the vorasidenib companion diagnostic test is granted an FDA premarket approval), as well as a royalty of 5% of U.S. net sales of TIBSOVO® from the close of the transaction through loss of exclusivity, and a royalty of 15% of U.S. net sales of vorasidenib from the first commercial sale of vorasidenib through loss of exclusivity. Servier also acquired our co-commercialization rights for Bristol Myers Squibb’s IDHIFA® and the right to receive a $25.0 million potential milestone payment under our prior collaboration agreement with Celgene Corporation, or Celgene, and following the sale Servier is responsible for conducting certain clinical development activities within the IDHIFA® development program. On March 25, 2021, we announced that our board of directors authorized the repurchase of up to $1.2 billion of our outstanding shares of common stock, or the Repurchase Program, using the proceeds from the sale of our oncology business to Servier. On March 31, 2021, in connection with the Repurchase Program, we entered into a definitive share repurchase agreement with Bristol-Myers Squibb Company, or BMS, to repurchase 7.1 million shares of our common stock held by certain subsidiaries of BMS for an aggregate purchase price of $344.5 million, or $48.38 per share. This repurchase was completed on April 5, 2021. Further, on April 2, 2021, in connection with the Repurchase Program, we entered into a Rule 10b5-1 repurchase plan pursuant to which we may repurchase up to $600 million of shares of our common stock. As of December 31, 2021, we have repurchased approximately 9.1 million shares of common stock for $458.0 million, or $50.35 per share, under the Rule 10b5-1 repurchase plan. On October 5, 2021, we terminated our Rule 10b5-1 share repurchase program and on October 13, 2021 entered into a Rule 10b-18 repurchase plan that allows us to conduct open market repurchases over time up to our remaining authorization under the Repurchase Program. In total, as of December 31, 2021, we have repurchased 16.2 million shares of common stock for $802.5 million, or $49.49 per share, under the Repurchase Program. We have paused our share repurchases 66 Table of Contents and for the foreseeable future, we expect that our capital allocation will be prioritized towards opportunities to accelerate programs in our development pipeline and/or pursue potential complementary business development opportunities. On April 30, 2020, we entered into an at-the-market sales agreement, or the 2020 sales agreement, with Cowen & Company LLC, or Cowen, pursuant to which we may offer and sell shares of our common stock having an aggregate offering price of up to $250.0 million through Cowen pursuant to a universal shelf registration statement on Form S-3 filed with the SEC on April 30, 2020. As of December 31, 2021, $250.0 million in common stock remained available for future issuance under the 2020 sales agreement. In November 2019, we completed a public offering of 9,487,500 shares of common stock at an offering price of $31.00 per share. We received net proceeds from this offering of $277.2 million, after deducting underwriting discounts and commissions paid by us, certain of which are subject to reimbursement. In addition to our existing cash, cash equivalents and marketable securities, we are eligible to earn a $200 million milestone payment, and royalty payments under our transaction agreement with Servier. Our right to payments under our transaction agreement with Servier is our only committed potential external source of funds. Whether the regulatory approval milestone for vorasidenib will be achieved is subject to various risks and uncertainties, many of which are outside our control, including adverse clinical developments with respect to vorasidenib. Furthermore, we cannot predict what success, if any, Servier may have in the United States with respect to sales of TIBSOVO® and, if approved, vorasidenib, and consequently we cannot estimate the amount of royalty payments that we can expect to receive from Servier under the purchase agreement prior to the loss of exclusivity of these products. Cash flows The following table provides information regarding our cash flows for the years ended December 31, 2021, 2020 and 2019: (In thousands) Net cash used in operating activities Net cash provided by investing activities Net cash (used in) provided by financing activities Net change in cash and cash equivalents 2021 (407,320) $ 1,248,778 (765,768) 75,690 $ $ $ 2020 (290,759) $ 75,746 261,518 46,505 $ 2019 (370,622) 91,440 289,611 10,429 Net cash used in operating activities Cash used in operating activities of $407.3 million during the year ended December 31, 2021, of which $314.1 million was used by continuing operations and $93.2 million was used by discontinued operations, was primarily due to operating expenses driven by research and development costs described above in Research and Development Expenses, offset by cash received of $39.5 million from sales of TIBSOVO®, and $1.2 million in cost reimbursements related to our collaboration agreements with Celgene. Cash used in operating activities of $290.8 million during the year ended December 31, 2020, of which $243.9 million was used by continuing operations and $46.8 million was used by discontinued operations, was primarily due to operating expenses driven by research and development costs described above in Research and Development Expenses, offset by cash received of $123.8 million from sales of TIBSOVO®, $7.9 million in royalty payments and $6.1 million in cost reimbursements related to our Collaboration Agreements with Celgene, $7.0 million in interest received, and $3.6 million in cost reimbursements related to our agreement with CStone Pharmaceuticals. Cash used in operating activities of $370.6 million during the year ended December 31, 2019, of which $236.2 million was used by continuing operations and $134.5 million was used by discontinued operations, was primarily due to operating expenses driven by research and development costs described above in Research and Development Expenses, offset by cash received of $60.7 million from product sales of TIBSOVO®, $19.1 million in cost reimbursements and royalty payments under our Collaboration Agreements with Celgene, and a $5.0 million milestone payment under our agreement with CStone Pharmaceuticals. Net cash provided by investing activities The cash provided by investing activities for the year ended December 31, 2021, of which $1,802.9 million was provided by discontinued operations and $554.2 million was used by continuing operations was primarily due to the approximately $1.8 billion in cash proceeds received from the sale of our oncology business to Servier that was completed on March 31, 2021, and the result of higher purchases of marketable securities than proceeds from maturities and sales of marketable securities. The cash provided by investing activities for the year ended December 31, 2020, of which $76.5 million was provided by continuing operations and $0.8 million was used by discontinued operations was primarily the result of lower purchases of 67 Table of Contents marketable securities than proceeds from maturities and sales of marketable securities, offset by $14.9 million in purchases of property and equipment. The cash provided by investing activities for the year ended December 31, 2019, of which $91.6 million was provided by continuing operations and $0.1 million was used by discontinued operations was primarily the result of lower purchases of marketable securities than proceeds from maturities and sales of marketable securities, offset by $12.0 million in purchases of property and equipment. Net cash (used in) provided by financing activities The cash used in financing activities for the year ended December 31, 2021 was primarily the due to the repurchase of common stock under our Repurchase Program of $802.5 million, partially offset by $37.3 million of proceeds received from stock option exercises and purchases made pursuant to our employee stock purchase plan. The cash provided by financing activities for the year ended December 31, 2020 was primarily the result of net proceeds of $250.5 million from the sale of our tiered, sales-based royalty rights on worldwide net sales of IDHIFA® (enasidenib) and our ex-US regulatory milestones to RPI in June 2020, and the $11.3 million of proceeds received from stock option exercises and purchases made pursuant to our employee stock purchase plan. The cash provided by financing activities for the year ended December 31, 2019 was primarily the result of proceeds of $277.2 million from the November 2019 follow-on public offering, net of underwriting discounts and commissions, as well as proceeds of $12.5 million received from stock option exercises and purchases made pursuant to our employee stock purchase plan. Funding requirements Although our expenses decreased following the completion of the sale of our oncology business to Servier on March 31, 2021, we anticipated that this decrease will be offset as we continue the research, development and clinical trials of, seek marketing approvals for, and commercialize our product candidates in our GDD portfolio, including as we commercialize PYRUKYND®. If we obtain marketing approval for PYRUKYND® in other indications our outside of the united states or for any of our product candidates, we expect to incur significant commercialization expenses related to product sales, marketing, manufacturing and distribution. We expect that our existing cash, cash equivalents and marketable securities as of December 31, 2021, will enable us to execute our operating plan through major catalysts and to cash-flow positivity without the need to raise additional equity. Our future capital requirements will depend on many factors, including: • • • • • • • • • • • the amount of contingent consideration we ultimately receive in connection with the sale of our oncology business to Servier; the amount and timing of revenue, if any, received from commercial sales of PYRUKYND® or any of our product candidates for which we receive marketing approval; the costs and timing of commercialization activities, including product manufacturing, sales, marketing and distribution for PYRUKYND®; the scope, progress, results and costs of drug discovery, preclinical development, laboratory testing and clinical trials for our product candidates; the costs, timing and outcome of regulatory review of our product candidates; the costs of preparing, filing and prosecuting patent applications, maintaining and enforcing our intellectual property rights and defending intellectual property-related claims; the costs and timing of future commercialization activities, including product manufacturing, sales, marketing and distribution, for any of our product candidates for which we may receive marketing approval; our ability to establish and maintain collaborations on favorable terms, if at all; our ability to successfully execute on our strategic plans; operational delays due to the ongoing COVID-19 pandemic; and the extent to which we acquire or in-license, or monitor or out-license, other medicines and technologies. Until such time, if ever, as we can generate substantial product revenue, we expect to finance our cash needs primarily through cash on hand, royalty payments from Servier with respect to U.S. net sales of TIBSOVO®, a potential milestone payment from Servier if vorasidenib is approved by the FDA and, potentially, collaborations, strategic alliances, licensing arrangements and other nondilutive strategic transactions. In addition, in connection with potential future strategic transactions, we may pursue opportunistic debt offerings, and equity or equity-linked offerings. We do not have any committed external source of funds other than the potential milestone and royalty payments that we are eligible to receive under our purchase agreement with Servier. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership 68 Table of Contents interest of our stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our common stockholders. Debt financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends. If we raise funds through collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates, or grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings when needed or on attractive terms, we may be required to delay, limit, reduce or terminate our product development or future commercialization efforts, or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves. Off-Balance Sheet Arrangements We did not have, during the periods presented, and we do not currently have, any off-balance sheet arrangements, as defined under applicable SEC rules. Contractual Obligations The following table summarizes our significant contractual obligations as of the payment due date by period at December 31, 2021: (In thousands) Operating lease obligations (1) Manufacturing arrangements (2) Service arrangements (3) Payments due by period $ Total 116,238 $ 1,012 10,000 Less than 1 year 1-3 years 3-5 years More than 5 years 15,560 $ — 2,000 36,786 $ 675 4,000 39,658 $ 337 4,000 24,234 — — (1) Relates payment obligations under lease agreements covering approximately 146,000 square feet at 88 Sidney Street, 43,000 square feet at 64 Sidney Street, and 13,000 square feet at 38 Sidney Street, Cambridge, Massachusetts. All leases, as amended, expire on February 29, 2028. At the end of the initial lease period, we have the option to extend the leases at all facilities for two consecutive five year periods at the fair market rent at the time of the extension. (2) Relates to payment obligations under a packaging and supply agreement for drug product. (3) Relates to payment obligations under a development and manufacturing services agreement for drug product. We enter into agreements in the normal course of business with CROs for clinical trials and contract manufacturing organizations, or CMOs, for supply manufacturing and with vendors for preclinical research studies and other services and products for operating purposes. These contractual obligations are cancelable at any time by us, generally upon prior written notice to the vendor, and are thus not included in the contractual obligations table. The service arrangement included in the table above is for a contractual term of five years, however, the total funds can be allocated in any manner to meet the agreement terms. Amounts included assume equal payments each year. Item 7A. Quantitative and Qualitative Disclosures about Market Risk We are exposed to market risk related to changes in interest rates. As of December 31, 2021, we had cash, cash equivalents and marketable securities of $1,286.4 million, consisting primarily of investments in U.S. Treasuries, and government and corporate debt securities. Our primary exposure to market risk is interest rate sensitivity, which is affected by changes in the general level of U.S. interest rates, particularly because our investments are in short-term marketable securities. Our marketable securities are subject to interest rate risk and could fall in value if market interest rates increase. Due to the short- term duration of our investment portfolio and the low risk profile of our investments, we do not believe an immediate and uniform 100 basis point increase in interest rates would have a material effect on the fair market value of our investment portfolio. We are also exposed to market risk related to changes in foreign currency exchange rates. We have contracts with CROs and CMOs that are located in Asia and Europe that are denominated in foreign currencies. We are subject to fluctuations in foreign currency rates in connection with these agreements. We do not currently hedge our foreign currency exchange rate risk. As of December 31, 2021 and December 31, 2020, we had minimal or no liabilities denominated in foreign currencies. Item 8. Financial Statements and Supplementary Data The financial statements required to be filed pursuant to this Item 8 are appended to this Annual Report on Form 10-K. An index of those financial statements is found in Item 15, Exhibits and Financial Statement Schedules, of this Annual Report on Form 10-K. 69 Table of Contents Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure None. Item 9A. Controls and Procedures Evaluation of Disclosure Controls and Procedures Our management, with the participation of our principal executive officer and our principal financial officer, evaluated, as of the end of the period covered by this Annual Report on Form 10-K, the effectiveness of our disclosure controls and procedures. Based on that evaluation of our disclosure controls and procedures as of December 31, 2021, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures as of such date are effective at the reasonable assurance level. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act are recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and our management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Management’s Annual Report on Internal Control over Financial Reporting Our management is responsible for establishing and maintaining adequate internal control over our financial reporting. Internal control over financial reporting is defined in Rules 13a-15(f) and 15d-15(f) promulgated under the Exchange Act as a process designed by, or under the supervision of, our principal executive and principal financial officers 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 U.S. GAAP. Our internal control over financial reporting includes those policies and procedures that: • • • pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect our transactions and dispositions of our assets; provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with U.S. GAAP, and that our receipts and expenditures are being made only in accordance with authorizations of our management and directors; and provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on our financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. 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. Our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2021. In making this assessment, management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in its 2013 Internal Control – Integrated Framework. Based on our assessment, our management has concluded that, as of December 31, 2021, our internal control over financial reporting is effective based on those criteria. The effectiveness of our internal control over financial reporting as of December 31, 2021, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report, which is included herein. Changes in Internal Control over Financial Reporting There were no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the fiscal quarter ended December 31, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. Item 9B. Other Information None. 70 Table of Contents Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections Not applicable. 71 Table of Contents Item 10. Directors, Executive Officers and Corporate Governance PART III The information required by this Item 10 will be included in our definitive proxy statement to be filed with the Securities and Exchange Commission, or SEC, with respect to our 2022 Annual Meeting of Stockholders and is incorporated herein by reference. Item 11. Executive Compensation The information required by this Item 11 will be included in our definitive proxy statement to be filed with the SEC with respect to our 2022 Annual Meeting of Stockholders and is incorporated herein by reference. Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters The information required by this Item 12 will be included in our definitive proxy statement to be filed with the SEC with respect to our 2022 Annual Meeting of Stockholders and is incorporated herein by reference. Item 13. Certain Relationships and Related Transactions, and Director Independence The information required by this Item 13 will be included in our definitive proxy statement to be filed with the SEC with respect to our 2022 Annual Meeting of Stockholders and is incorporated herein by reference. Item 14. Principal Accountant Fees and Services The information required by this Item 14 will be included in our definitive proxy statement to be filed with the SEC with respect to our 2022 Annual Meeting of Stockholders and is incorporated herein by reference. 72 Table of Contents Item 15. Exhibits and Financial Statement Schedules (1) Financial Statements PART IV The following documents are included on pages F-1 through F-27 attached hereto and are filed as part of this Annual Report on Form 10-K. Report of Independent Registered Public Accounting Firm (PCAOB ID 238) Consolidated Balance Sheets Consolidated Statements of Operations Consolidated Statements of Comprehensive Income (Loss) Consolidated Statements of Stockholders’ Equity Consolidated Statements of Cash Flows Notes to Consolidated Financial Statements 2 4 5 6 7 8 9 (2) Financial Statement Schedules Schedules have been omitted since they are either not required or not applicable or the information is otherwise included herein. (3) Exhibits Exhibit Number 2.1+ 3.1 3.2 4.1 4.2 10.1# 10.2# 10.3# 10.4# 10.5# 10.6# 10.7# Description of Exhibit Purchase and Sale Agreement, dated as of December 20, 2020, by and among the Registrant, Servier Pharmaceuticals, LLC, and, solely for purposes of guaranteeing certain obligations of the Purchaser, Servier S.A.S Restated Certificate of Incorporation of the Registrant Second Amended and Restated By-Laws Specimen Stock Certificate evidencing the shares of common stock Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934 2007 Stock Incentive Plan Form of Incentive Stock Option Agreement under 2007 Stock Incentive Plan Form of Nonstatutory Stock Option Agreement under 2007 Stock Incentive Plan 2013 Stock Incentive Plan Form of Incentive Stock Option Agreement under 2013 Stock Incentive Plan Form of Nonstatutory Stock Option Agreement under 2013 Stock Incentive Plan 2013 Employee Stock Purchase Plan Incorporated by Reference File Number 001-36014 Date of Filing December 22, 2020 001-36014 July 30, 2013 001-36014 333-189216 December 19, 2018 June 24, 2013 Form 8-K 8-K 8-K S-1 10-K 001-36014 February 19, 2020 333-189216 333-189216 June 10, 2013 June 10, 2013 333-189216 June 10, 2013 333-189216 333-189216 June 24, 2013 June 24, 2013 333-189216 June 24, 2013 333-189216 June 24, 2013 S-1 S-1 S-1 S-1 S-1 S-1 S-1 73 Exhibit Number Filed Herewith 2.1 3.1 3.1 4.1 4.3 10.1 10.2 10.3 10.4 10.5 10.6 10.7 Table of Contents Exhibit Number 10.8 10.9# 10.10† 10.11† 10.12 10.13 10.14 10.15# 10.16 10.17† 10.18† 10.19# 10.20# 10.21† 10.22# 10.23 Description of Exhibit Form of Indemnification Agreement between the Registrant and each of its Executive Officers and Directors Letter Agreement, dated as of April 1, 2014, between the Registrant and Christopher Bowden, Ph.D. Discovery and Development Collaboration and License Agreement, dated as of April 14, 2010, as amended on October 3, 2011, between the Registrant and Celgene Corporation Third Amendment to Discovery and Development Collaboration and License Agreement, dated July 14, 2014 between the Registrant and Celgene Corporation Common Stock Purchase Agreement, dated as of July 16, 2013, between the Registrant and Celgene Alpine Investment Co., LLC Lease, dated as of September 15, 2014, between the Registrant and Forest City 88 Sidney, LLC First Amendment to Lease for 88 Sidney Street, dated as of November 21, 2014, between the Registrant and Forest City 88 Sidney, LLC Summary Description of Annual Cash Incentive Program Second Amendment to Lease for 88 Sidney Street, dated July 20, 2015, by and between the Registrant and Forest City 88 Sidney Street, LLC Collaboration and License Agreement by and between the Registrant and Celgene Corporation Re: AGI-23088 for the US Territory, dated as of April 27, 2015 Collaboration and License Agreement by and between Agios International Sarl and Celgene International II Sarl Re: AGI-23088 for the ROW Territory, dated as of April 27, 2015 Form of Performance Share Unit Agreement under 2013 Stock Incentive Plan Severance Benefits Plan Master Research and Collaboration Agreement, dated May 17, 2016, by and among the Registrant, Celgene Corporation and Celgene RIVOT Ltd. Letter Agreement between the Registrant and Andrew Hirsch, effective August 11, 2016 Lease, dated as of November 17, 2017, between the Registrant and UP 64 Sidney Street, LLC Incorporated by Reference Form S-1 File Number 333-189216 Date of Filing Exhibit Number Filed Herewith July 11, 2013 10.12 10-K 001-36014 February 26, 2016 10.13 S-1 333-189216 July 16, 2013 10.14 10-K 001-36014 February 24, 2015 10.15 S-1 8-K 8-K 10-Q 8-K 333-189216 July 16, 2013 10.15 001-36014 September 19, 2014 001-36014 November 26, 2014 001-36014 001-36014 May 11, 2015 July 23, 2015 10.1 10.1 10.1 10.1 10-Q 001-36014 August 7, 2015 10.1 10-Q 001-36014 August 7, 2015 10.2 001-36014 February 26, 2016 10.25 001-36014 001-36014 April 22, 2016 August 8, 2016 001-36014 August 16, 2016 001-36014 November 22, 2017 10.1 10.1 99.2 10.1 10-K 8-K 10-Q 8-K 8-K 74 Table of Contents Exhibit Number 10.24 10.25 10.26# 10.27† 10.28# 10.29# 10.30# 10.31 10.32 10.33 10.34# 10.35# 10.36† 10.37† 10.38† 10.39 Description of Exhibit Third Amendment to Lease for 88 Sidney Street, dated November 17, 2017, by and between the Registrant and Forest City 88 Sidney Street, LLC First Amendment of Lease, dated April 11, 2018, by and between UP 64 Sidney Street, LLC and Agios Pharmaceuticals. Inc. Form of Restricted Stock Unit Agreement under 2013 Stock Incentive Plan (for employees) License Agreement, dated June 25, 2018, by and between Agios Pharmaceuticals, Inc. and CStone Pharmaceuticals Amended and Restated Letter Agreement, dated as of August 30, 2018, between the Registrant and David P. Schenkein, M.D. Letter Agreement, dated as of August 30, 2018, between the Registrant and Jacqualyn A. Fouse, Ph.D. Form of Restricted Stock Unit Agreement under 2013 Stock Incentive Plan (for directors) Lease, dated as of April 11, 2019, by and between the Registrant and Thirty-Eight Sidney Street Limited LLC Fourth Amendment to Lease, dated as of April 11, 2019, by and between the Registrant and Forest City 88 Sidney Street, LLC Third Amendment of Lease, dated as of April 11, 2019, by and between the Registrant and UP 64 Sidney Street, LLC Letter Agreement, dated as of September 17, 2019, between the Registrant and Jonathan Biller Letter Agreement, dated as of October 7, between the Registrant and Bruce Car Amendment to Master Research and Collaboration Agreement, dated as of February 5, 2020, by and among the Registrant, Celgene Corporation and Celgene RIVOT Ltd Amendment I to License Agreement, dated as of March 2, 2020, by and between the Registrant and CStone Pharmaceuticals Amendment II to License Agreement, dated as of March 2, 2020, by and between the Registrant and CStone Pharmaceuticals Sales Agreement, dated April 30, 2020, by and between the Registrant and Cowen and Company, LLC Incorporated by Reference Form 8-K File Number 001-36014 Date of Filing Exhibit Number Filed Herewith November 22, 2017 10.2 8-K 001-36014 April 13, 2018 10.1 10-Q 10-Q 001-36014 May 4, 2018 001-36014 August 2, 2018 10.1 10.2 10-Q 001-36014 November 1, 2018 10.1 10-Q 001-36014 November 1, 2018 10.2 10-K 10-Q 001-36014 February 14, 2019 10.32 001-36014 August 1, 2019 10.1 10-Q 001-36014 August 1, 2019 10.2 10-Q 001-36014 August 1, 2019 10.3 10-K 10-Q 10-Q 001-36014 February 19, 2020 10.35 001-36014 April 30, 2020 001-36014 April 30, 2020 10.1 10.2 10-Q 001-36014 April 30, 2020 10.3 10-Q 001-36014 April 30, 2020 10.4 S-3ASR 333-237930 April 30, 2020 1.2 75 Table of Contents Exhibit Number 10.40† 10.41 10.42# 10.43 10.44 21.1 23.1 31.1 31.2 32.1* 32.2* 101.INS 101.SCH 101.CAL 101.DEF 101.LAB 101.PRE 104 # † Description of Exhibit Royalty Purchase Agreement, dated as of June 11, 2020, by and between the Registrant and RPI 2019 Intermediate Finance Trust Share Repurchase Agreement, dated as of March 31, 2021, by and between the Registrant and Bristol-Myers Squibb Company Letter Agreement, dated as of July 27, 2021, between the Registrant and Chris Bowden, M.D. Sublease Agreement, dated July 27, 2021, between the Registrant and Prime Medicine, Inc. (38 Sidney Street) Sublease Agreement, dated July 27, 2021, between the Registrant and Prime Medicine, Inc. (64 Sidney Street) Subsidiaries of the Registrant Consent of PricewaterhouseCoopers LLP, an Independent Registered Public Accounting Firm Certification of principal executive officer pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as amended Certification of principal financial officer pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as amended. Certification of principal executive officer pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. Certification of principal financial officer pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. XBRL Instance Document XBRL Taxonomy Extension Schema Document XBRL Taxonomy Calculation Linkbase Document XBRL Taxonomy Extension Definition Linkbase Document XBRL Taxonomy Label Linkbase Document XBRL Taxonomy Presentation Linkbase Document Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) Incorporated by Reference Form 10-Q File Number 001-36014 Date of Filing Exhibit Number Filed Herewith July 30, 2020 10.2 10-Q 001-36014 April 29, 2021 10-Q 10-Q 001-36014 November 3, 2021 001-36014 November 3, 2021 10.1 10.1 10.2 X X X X X X X X X X X X X Indicates management contract or compensatory plan or arrangement. Confidential treatment has been granted as to certain portions, which portions have been omitted and filed separately with the Securities and Exchange Commission. 76 Table of Contents Incorporated by Reference Exhibit Number + * Description of Exhibit Filed Herewith Pursuant to Item 601(6)(2) of Regulation S-K, the disclosure schedules to the Purchase Agreement (identified therein) have been omitted from this Current Report on Form 8-K and will be furnished to the SEC supplementally upon request. This certification will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent specifically incorporated by reference into such filing. File Number Exhibit Number Date of Filing Form Item 16. Form 10-K Summary None. 77 Table of Contents 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. SIGNATURES February 24, 2022 AGIOS PHARMACEUTICALS, INC. By: /s/ Jacqualyn A. Fouse Jacqualyn A. Fouse, Ph.D. Chief Executive Officer Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. Signature /s/ Jacqualyn A. Fouse Jacqualyn A. Fouse, Ph.D. /s/ Jonathan Biller Jonathan Biller /s/ T.J. Washburn T.J. Washburn /s/ Paul J. Clancy Paul J. Clancy /s/ Ian Clark Ian Clark /s/ Kaye Foster Kaye Foster /s/ Maykin Ho Maykin Ho, Ph.D. /s/ John M. Maraganore John M. Maraganore, Ph.D. /s/ David Scadden David Scadden, M.D. /s/ David P. Schenkein David P. Schenkein, M.D. Title Chief Executive Officer and Director (Principal executive officer) Chief Financial Officer and Head of Corporate Affairs (Principal financial officer) Senior Director of Accounting (Principal accounting officer) Date February 24, 2022 February 24, 2022 February 24, 2022 Director February 24, 2022 Director February 24, 2022 Director February 24, 2022 Director February 24, 2022 Director February 24, 2022 Director Director February 24, 2022 February 24, 2022 78 Table of Contents Agios Pharmaceuticals, Inc. Index to Consolidated Financial Statements Report of Independent Registered Public Accounting Firm (PCAOB ID 238) Consolidated Balance Sheets Consolidated Statements of Operations Consolidated Statements of Comprehensive Income (Loss) Consolidated Statements of Stockholders’ Equity Consolidated Statements of Cash Flows Notes to Consolidated Financial Statements F-1 2 4 5 6 7 8 9 Table of Contents To the Board of Directors and Stockholders of Agios Pharmaceuticals, Inc. Opinions on the Financial Statements and Internal Control over Financial Reporting Report of Independent Registered Public Accounting Firm We have audited the accompanying consolidated balance sheets of Agios Pharmaceuticals, Inc. and its subsidiaries (the “Company”) as of December 31, 2021 and 2020, and the related consolidated statements of operations, of comprehensive income (loss), of stockholders’ equity and of cash flows for each of the three years in the period ended December 31, 2021, including the related notes (collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2021 and 2020, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2021 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO. Basis for Opinions The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management's Annual Report on Internal Control over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (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 audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated 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 consolidated 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 consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions. 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 (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) 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 (iii) 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. Critical Audit Matters The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or F-2 Table of Contents disclosures that are material to the consolidated financial statements and (ii) 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 matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates. Discontinued Operations - Expenses Directly Attributable to the Oncology Business As described in Notes 2 and 3 to the consolidated financial statements, on March 31, 2021, the Company completed the sale of its oncology business, including TIBSOVO®, its clinical-stage product candidates vorasidenib, AG-270 and AG-636, and its oncology research programs, to Servier Pharmaceuticals LLC for a payment of approximately $1.8 billion, a payment of $200 million if, prior to January 1, 2027, vorasidenib is granted new drug application approval from the U.S. Food and Drug Administration, a royalty of 5% of U.S. net sales of TIBSOVO® from the close of the transaction through loss of exclusivity, and a royalty of 15% of U.S. net sales of vorasidenib from the first commercial sale of vorasidenib through loss of exclusivity. Management accounted for the sale of the oncology business as a discontinued operation given the sale of the business represented a strategic shift that had a major effect on the Company’s operations and financial results. As a result, management has classified the results of the oncology business, including the research and development, marketing, selling and general and administrative expenses incurred directly to solely support the oncology business, as discontinued operations in the consolidated statements of operations for all periods presented. The Company has included in discontinued operations $41.6 million in research and development expenses and $8.6 million in selling, general and administrative expenses for the year ended December 31, 2021. The principal consideration for our determination that performing procedures relating to discontinued operations - expenses directly attributable to the oncology business is a critical audit matter is the significant audit effort involved in performing procedures related to management’s determination and classification of the expenses incurred directly to solely support the oncology business as discontinued operations. Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to discontinued operations, including controls over management’s determination of the expenses incurred directly to solely support the oncology business. These procedures also included, among others, evaluating management’s process for identifying expenses incurred directly to solely support the oncology business and testing the completeness, accuracy, and classification of operating expenses between discontinued operations and continuing operations in the consolidated financial statements. /s/ PricewaterhouseCoopers LLP Boston, Massachusetts February 24, 2022 We have served as the Company’s auditor since 2017. F-3 Table of Contents (In thousands) December 31: Assets Current assets: Cash and cash equivalents Marketable securities Other receivable Prepaid expenses and other current assets Current assets of discontinued operations Total current assets Marketable securities Operating lease assets Property and equipment, net Financing lease assets Other non-current assets Non-current assets of discontinued operations Total assets Liabilities and stockholders’ equity Current liabilities: Accounts payable Accrued expenses Operating lease liabilities Financing lease liabilities Current liabilities of discontinued operations Total current liabilities Operating lease liabilities, net of current portion Financing lease liabilities, net of current portion Non-current liabilities of discontinued operations Total liabilities Commitments and contingent liabilities (Note 9) Stockholders’ equity: Agios Pharmaceuticals, Inc. Consolidated Balance Sheets 2021 2020 $ $ $ $ 203,126 $ 816,892 4,378 39,835 — 1,064,231 266,375 75,124 28,923 183 2,900 — 1,437,736 $ 16,700 $ 31,967 10,828 331 — 59,826 85,659 276 — 145,761 127,436 445,493 — 15,889 47,859 636,677 97,608 84,661 30,815 590 — 2,601 852,952 17,724 30,801 7,093 317 38,459 94,394 97,458 331 261,269 453,452 — 71 2,334,348 (1,198) (238,760) (802,486) 1,291,975 1,437,736 $ — 69 2,242,801 105 (1,843,475) — 399,500 852,952 Preferred stock, $0.001 par value; 25,000,000 shares authorized, no shares issued and outstanding at December 31, 2021 and 2020 Common stock, $0.001 par value; 125,000,000 shares authorized; 70,550,631 shares issued and 54,334,220 outstanding at December 31, 2021 and 69,293,920 shares issued and outstanding at December 31, 2020 Additional paid-in capital Accumulated other comprehensive (loss) income Accumulated deficit Treasury stock, at cost (16,216,411 shares at December 31, 2021 and no shares at December 31, 2020) Total stockholders’ equity Total liabilities and stockholders’ equity See accompanying Notes to Consolidated Financial Statements. F-4 Table of Contents Agios Pharmaceuticals, Inc. Consolidated Statements of Operations (In thousands, except share and per share data) Years Ended December 31: Cost and expenses: Research and development Selling, general and administrative Total cost and expenses Loss from operations Gain on sale of oncology business Interest income, net Other income, net Net loss from continuing operations Net income (loss) from discontinued operations, net of tax Net income (loss) Net loss from continuing operations per share - basic and diluted Net income (loss) from discontinued operations per share - basic and diluted Net income (loss) per share - basic and diluted Weighted-average number of common shares used in computing net loss per share from continuing operations, net income (loss) per share from discontinued operations and net income (loss) per share – basic and diluted 2021 2020 2019 $ $ $ $ $ 256,973 $ 121,445 378,418 (378,418) 6,639 836 14,433 (356,510) 1,961,225 1,604,715 $ (5.90) $ 32.45 $ 26.55 $ 220,811 $ 115,105 335,916 (335,916) — 6,611 — (329,305) 1,935 (327,370) $ (4.77) $ 0.03 $ (4.74) $ 214,262 102,007 316,269 (316,269) — 14,861 — (301,408) (110,064) (411,472) (5.02) (1.84) (6.86) 60,447,346 68,997,879 59,994,539 See accompanying Notes to Consolidated Financial Statements. F-5 Table of Contents Agios Pharmaceuticals, Inc. Consolidated Statements of Comprehensive Income (Loss) (In thousands) Years Ended December 31: Net income (loss) Other comprehensive (loss) income: Unrealized (loss) gain on available-for-sale securities Comprehensive income (loss) 2021 1,604,715 $ 2020 (327,370) $ 2019 (411,472) (1,303) 1,603,412 $ (97) (327,467) $ 2,373 (409,099) $ $ See accompanying Notes to Consolidated Financial Statements. F-6 Table of Contents Agios Pharmaceuticals, Inc. Consolidated Statements of Stockholders’ Equity (In thousands, except share amounts) Balance at December 31, 2018 Shares 58,218,653 $ Unrealized gain on available-for-sale securities Net loss Stock-based compensation expense Issuance of common stock under stock incentive and employee stock purchase plans Issuance of common stock for follow-on offering Disposition of oncology business — — — 694,952 9,487,500 — Balance at December 31, 2019 68,401,105 $ Unrealized loss on available-for-sale securities Net loss Stock-based compensation expense Issuance of common stock under stock incentive and employee stock purchase plans Disposition of oncology business — — — 892,815 — Balance at December 31, 2020 69,293,920 $ Unrealized loss on available-for-sale securities Net income Stock-based compensation expense Issuance of common stock under stock incentive and employee stock purchase plans Repurchase of common stock Disposition of oncology business — — — 1,256,711 — — Balance at December 31, 2021 70,550,631 $ Common Stock Additional Paid-In Capital Accumulated Other Comprehensive Income (Loss) Amount 58 $ 1,794,283 $ (2,171) $ — — — 1 9 — 68 — — — 1 — 69 — — — 2 — — 71 $ $ $ — — 58,050 12,515 277,192 14,323 2,156,363 — — 61,602 11,316 13,520 2,242,801 — — 53,508 37,294 — 745 2,334,348 $ $ $ 2,373 — — — — — 202 (97) — — — — 105 (1,303) — — — — — (1,198) $ $ $ Treasury Accumulated Deficit (1,104,633) Shares Amount Total Stockholders’ Equity — $ — $ 687,537 — (411,472) — — — — (1,516,105) — (327,370) — — — (1,843,475) — 1,604,715 — — — — — — — — $ — — — — — — $ — — — — — — — — — — $ — — — — — — $ — — — — — — (238,760) — (16,216,411) — — (802,486) — (16,216,411) $ (802,486) $ 2,373 (411,472) 58,050 12,516 277,201 14,323 640,528 (97) (327,370) 61,602 11,317 13,520 399,500 (1,303) 1,604,715 53,508 37,296 (802,486) 745 1,291,975 See accompanying Notes to Consolidated Financial Statements. F-7 Table of Contents Agios Pharmaceuticals, Inc. Consolidated Statements of Cash Flows (In thousands) Years Ended December 31: Operating activities Net income (loss) Less: Net income (loss) from discontinued operations Net loss from continuing operations Adjustments to reconcile net loss to net cash used in operating activities: Depreciation and amortization Stock-based compensation expense Net amortization of premium (accretion of discount) on marketable securities Loss on disposal of property and equipment Non-cash operating lease expense Changes in operating assets and liabilities: Other receivables Prepaid expenses and other current and non-current assets Accounts payable Accrued expenses Operating lease liabilities Net cash used in operating activities Net cash used in operating activities - discontinued operations Net cash used in operating activities Investing activities Purchases of marketable securities Proceeds from maturities and sales of marketable securities Purchases of property and equipment Net cash (used in) provided by investing activities Net cash provided by (used in) investing activities - discontinued operations Net cash provided by investing activities Financing activities Payments on financing lease obligations Purchase of treasury stock Proceeds from public offering of common stock, net of reimbursements Net proceeds from stock option exercises and employee stock purchase plan Net cash (used in) provided by financing activities Net cash provided by financing activities - discontinued operations Net cash (used in) provided by financing activities Net change in cash and cash equivalents Cash and cash equivalents at beginning of the period Cash and cash equivalents at end of the period Supplemental disclosure of non-cash investing and financing transactions: Additions to property and equipment in accounts payable and accrued expenses Cash taxes paid Operating lease liabilities arising from obtaining operating lease assets Financing lease liabilities arising from obtaining financing lease assets 2021 2020 2019 $ 1,604,715 $ 1,961,225 (356,510) (327,370) $ 1,935 (329,305) 9,240 53,508 6,949 12 9,537 (4,378) (26,846) 1,863 66 (7,527) (314,086) (93,234) (407,320) (1,378,221) 829,804 (5,741) (554,158) 1,802,936 1,248,778 (578) (802,486) — 37,296 (765,768) — (765,768) 75,690 127,436 203,126 $ 1,678 $ 16,078 $ — $ 511 $ $ $ $ $ $ 9,790 61,602 3,022 — 8,982 — (3) 3,330 6,765 (8,127) (243,944) (46,815) (290,759) (557,030) 647,685 (14,106) 76,549 (803) 75,746 (336) — — 11,317 10,981 250,537 261,518 46,505 80,931 127,436 $ 465 $ — $ — $ — $ (411,472) (110,064) (301,408) 8,088 58,050 (3,195) 1,052 8,532 — (3,751) 4,162 (825) (6,861) (236,156) (134,466) (370,622) (488,566) 592,177 (12,028) 91,583 (143) 91,440 (113) — 277,201 12,523 289,611 — 289,611 10,429 70,502 80,931 5,168 — 42,322 1,052 See accompanying Notes to Consolidated Financial Statements. F-8 Table of Contents Note 1. Nature of Business References to Agios Agios Pharmaceuticals, Inc. Notes to Consolidated Financial Statements Throughout this Annual Report on Form 10-K, “the Company,” “we,” “us,” and “our,” and similar expressions, except where the context requires otherwise, refer to Agios Pharmaceuticals, Inc. and its consolidated subsidiaries, and “our board of directors” refers to the board of directors of Agios Pharmaceuticals, Inc. Overview We are a biopharmaceutical company committed to transforming patients’ lives through scientific leadership in the field of cellular metabolism and adjacent areas of biology, with the goal of creating differentiated, small molecule medicines for genetically defined diseases. We take a systems biology approach to deeply understand disease states, drive the discovery and validation of novel therapeutic targets, and define patient selection strategies, thereby increasing the probability that our experimental medicines will have the desired therapeutic effect, while cultivating connections with patient communities, healthcare professionals, partners and colleagues to discover, develop and deliver potential therapies for genetically defined diseases, or GDDs. We are located in Cambridge, Massachusetts. The lead product candidate in our GDD portfolio, PYRUKYND® (mitapivat), is an activator of both wild-type and mutant pyruvate kinase, or PK, enzymes for the potential treatment of hemolytic anemias. On February 17, 2022, the FDA approved PYRUKYND® for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States. In addition, we are currently evaluating PYRUKYND® for the treatment of thalassemia and sickle cell disease, or SCD, in clinical trials. We are also developing AG-946, a novel, next-generation PKR activator, for the potential treatment of hemolytic anemias and other indications. In addition to the aforementioned development programs, we foster a productive research engine and are seeking to advance multiple novel, investigational therapies in clinical and preclinical development in our focus area of GDDs, based on our scientific leadership in the field of cellular metabolism and adjacent areas of biology. We are subject to risks common to companies in our industry including, but not limited to, uncertainties relating to conducting clinical research and development, the manufacture and supply of products for clinical and commercial use, obtaining and maintaining regulatory approvals and pricing and reimbursement for our products, market acceptance, managing global growth and operating expenses, availability of additional capital, competition, obtaining and enforcing patents, stock price volatility, dependence on collaborative relationships and third-party service providers, dependence on key personnel, potential litigation, product liability claims and government investigations. Sale of our Oncology Business to Servier On March 31, 2021, we completed the sale of our oncology business to Servier Pharmaceuticals LLC, or Servier. The transaction included the sale of our oncology business, including TIBSOVO®, our clinical-stage product candidates vorasidenib, AG-270 and AG-636, and our oncology research programs for a payment of approximately $1.8 billion in cash at the closing, subject to certain adjustments, and a payment of $200 million in cash, if, prior to January 1, 2027, vorasidenib is granted new drug application, or NDA, approval from the U.S. Food and Drug Administration, or FDA, with an approved label that permits vorasidenib’s use as a single agent for the adjuvant treatment of patients with Grade 2 glioma that have an isocitrate dehydrogenase 1 or 2 mutation (and, to the extent required by such approval, the vorasidenib companion diagnostic test is granted an FDA premarket approval), as well as a royalty of 5% of U.S. net sales of TIBSOVO® from the close of the transaction through loss of exclusivity, and a royalty of 15% of U.S. net sales of vorasidenib from the first commercial sale of vorasidenib through loss of exclusivity. Servier also acquired our co-commercialization rights for Bristol Myers Squibb’s IDHIFA® and the right to receive a $25.0 million potential milestone payment under our prior collaboration agreement with Celgene Corporation, or Celgene, and following the sale Servier is responsible for conducting certain clinical development activities within the IDHIFA® development program. We recorded income from royalties of approximately $6.6 million on U.S. net sales of TIBSOVO® by Servier in the gain on sale of oncology business line item within the condensed consolidated statements of operations, for the year ended December 31, 2021. Reclassifications Certain amounts in prior periods have been reclassified to reflect the impact of the discontinued operations treatment of the oncology business in order to conform to the current period presentation. F-9 Table of Contents Liquidity On March 31, 2021, we completed the sale of our oncology business to Servier, and received approximately $1.8 billion in cash at closing. In connection with the sale, on March 25, 2021, we announced that our board of directors authorized the repurchase of up to $1.2 billion of our outstanding shares of common stock, or the Repurchase Program, using the proceeds from the sale of our oncology business to Servier. On March 31, 2021, in connection with the Repurchase Program, we entered into a definitive share repurchase agreement with Bristol-Myers Squibb Company, or BMS, to repurchase 7.1 million shares of our common stock held by certain subsidiaries of BMS for an aggregate purchase price of $344.5 million, or $48.38 per share. This repurchase was completed on April 5, 2021. Further, on April 2, 2021, in connection with the Repurchase Program, we entered into a Rule 10b5-1 repurchase plan pursuant to which we may repurchase up to $600 million of shares of our common stock. On October 5, 2021, we terminated our Rule 10b5-1 share repurchase program and on October 13, 2021 entered into a Rule 10b-18 repurchase plan that allows us to conduct open market repurchases over time up to our remaining authorization. As of December 31, 2021, we have repurchased approximately 9.1 million shares of common stock for $458.0 million, or $50.35 per share, under the Rule 10b5-1 repurchase plan. As of December 31, 2021, we have not repurchased any shares under the Rule 10b-18 repurchase plan. In total, as of December 31, 2021, we have repurchased 16.2 million shares of common stock for $802.5 million, or $49.49 per share, under the Repurchase Program. We have paused our share repurchases for the foreseeable future. On April 30, 2020, we entered into an at-the-market sales agreement, or the 2020 sales agreement, with Cowen & Company LLC, or Cowen, pursuant to which we may offer and sell shares of our common stock having an aggregate offering price of up to $250.0 million through Cowen pursuant to a universal shelf registration statement on Form S-3 filed with the SEC on April 30, 2020. As of December 31, 2021, $250.0 million in common stock remained available for future issuance under the 2020 sales agreement. As of December 31, 2021, we had cash, cash equivalents and marketable securities of $1,286.4 million. Although we have incurred recurring losses and expect to continue to incur losses for the foreseeable future, we expect our cash, cash equivalents and marketable securities to be sufficient to fund current operations for at least the next twelve months from the issuance of the financial statements. If we are unable to raise additional funds through equity or debt financings, we may be required to delay, limit, reduce or terminate product development or future commercialization efforts or grant rights to develop and market products or product candidates that we would otherwise prefer to develop and market ourselves. Note 2. Summary of Significant Accounting Policies Principles of consolidation The consolidated financial statements include our accounts and the accounts of our wholly owned subsidiaries, Agios Securities Corporation, Agios International Sarl (GmbH), Agios Germany GmbH, Agios Netherlands B.V., Agios Italy S.R.L., Agios France SARL, and Agios Limited. All intercompany transactions have been eliminated in consolidation. The consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles, or U.S. GAAP. Use of estimates The preparation of financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. On an ongoing basis we evaluate our estimates, judgments and methodologies. We base our estimates on historical experience and on various other assumptions that we believe are reasonable, the results of which form the basis for making judgments about the carrying values of assets, liabilities and equity and the amount of revenues and expenses. The full extent to which the COVID-19 pandemic will directly or indirectly impact our business, results of operations and financial condition, including expenses, reserves and allowances, clinical trials, research and development costs and employee-related amounts, will depend on future developments that are highly uncertain, including as a result of new information that may emerge concerning COVID-19 and any variant strains of the virus and the actions taken to contain the pandemic or treat COVID-19, as well as the economic impact on local, regional, national and international customers and markets. We have made estimates of the impact of COVID-19 within our financial statements and there may be changes to those estimates in future periods. Actual results may differ from these estimates. Cash and cash equivalents We consider highly liquid investments with a maturity of three months or less when purchased to be cash equivalents. Cash equivalents are stated at fair value. F-10 Marketable securities Marketable securities at December 31, 2021 and 2020 consisted of investments in U.S. Treasuries, government securities and corporate debt securities. We determine the appropriate classification of the securities at the time they are acquired and evaluate the appropriateness of such classifications at each balance sheet date. We classify our marketable securities as available-for-sale pursuant to Accounting Standards Codification, or ASC, 320, Investments – Debt and Equity Securities. Marketable securities are recorded at fair value. Unrealized gains are included as a component of accumulated other comprehensive (loss) income in the consolidated balance sheets and statements of stockholders’ equity and a component of total comprehensive income (loss) in the consolidated statements of comprehensive income (loss), until realized. Realized gains and losses are included in investment income on a specific-identification basis. At December 31, 2021 and 2020, we held both current and non-current investments. Investments classified as current have maturities of less than one year. Investments classified as non-current are those that: (i) have a maturity of one to two years, and (ii) we do not intend to liquidate within the next twelve months, although these funds are available for use and therefore classified as available-for-sale. We review marketable securities for impairment whenever the fair value of a marketable security is less than the amortized cost and evidence indicates that a marketable security’s carrying amount is not recoverable. Unrealized losses are evaluated for impairment under ASC 326, Financial Instruments - Credit Losses, to determine if the impairment is credit-related or noncredit-related. Credit-related impairment is recognized as an allowance on the balance sheet with a corresponding adjustment to earnings, and noncredit-related impairment is recognized in other comprehensive income (loss), net of taxes. Evidence considered in this assessment includes reasons for the impairment, compliance with our investment policy, the severity of the impairment, collectability of the security, and any adverse conditions specifically related to the security, an industry, or geographic area. Fair value measurements We record cash equivalents and marketable securities at fair value. ASC 820, Fair Value Measurements and Disclosures, establishes a fair value hierarchy for those instruments measured at fair value that distinguishes between assumptions based on market data (observable inputs) and our own assumptions (unobservable inputs). The hierarchy consists of three levels: Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 – Quoted prices for similar assets and liabilities in active markets, quoted prices in markets that are not active, or inputs which 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 market participants would use in pricing the asset or liability in which there is little, if any, market activity for the asset or liability at the measurement date. Our financial assets, which include cash equivalents and marketable securities, have been initially valued at the transaction price, and subsequently revalued at the end of each reporting period, utilizing third-party pricing services or other observable market data. The pricing services utilize industry standard valuation models, including both income and market based approaches, and observable market inputs to determine value. After completing our validation procedures, we did not adjust or override any fair value measurements provided by the pricing services as of December 31, 2021 or 2020. Fair value information for these assets, including their classification in the fair value hierarchy is included in Note 4. Fair Value Measurements. There have been no changes to the valuation methods during the years ended December 31, 2021 and 2020. We evaluate transfers between levels at the end of each reporting period. The carrying amounts of other receivable, prepaid expenses and other current assets, accounts payable, and accrued expenses approximate their fair values due to their short-term maturities. Concentrations of credit risk Financial instruments which potentially subject us to credit risk consist primarily of cash, cash equivalents, and marketable securities. We hold these investments in highly rated financial institutions, and, by policy, limit the amounts of credit exposure to any one financial institution. These amounts at times may exceed federally insured limits. We have not experienced any credit losses in such accounts and do not believe we are exposed to any significant credit risk on these funds. We have no off-balance sheet concentrations of credit risk, such as foreign currency exchange contracts, option contracts, or other hedging arrangements. F-11 Property and equipment Property and equipment consist of laboratory equipment, computer equipment and software, leasehold improvements, furniture and fixtures, and office equipment. Costs of major additions and betterment are capitalized; maintenance and repairs, which do not improve or extend the life of the respective assets, are charged to expense as incurred. Upon retirement or sale, the cost of the disposed asset and the related accumulated depreciation are removed from the accounts and the resulting gain or loss is recognized. Property and equipment is stated at cost, and depreciated using the straight-line method over the estimated useful lives of the respective assets: Laboratory equipment Computer equipment and software Furniture and fixtures Office equipment Years 5 3 5 5 Leasehold improvements are amortized over the lesser of the remaining lease term or the estimated useful life of the improvement. Impairment of long-lived assets We periodically evaluate our long-lived assets for potential impairment in accordance with ASC 360, Property, Plant and Equipment. Potential impairment is assessed when there is evidence that events or changes in circumstances indicate that the carrying amount of an asset may not be recovered. Recoverability of these assets is assessed based on the undiscounted expected future cash flows from the assets, considering a number of factors, including past operating results, budgets and economic projections, market trends and product development cycles. If impairments are identified, assets are written down to their estimated fair value. We did not recognize any impairment charges through December 31, 2021. Leases We determine if an arrangement is a lease at inception. An arrangement is determined to contain a lease if the contract conveys the right to control the use of an identified property or equipment for a period of time in exchange for consideration. If we can benefit from the various underlying assets of a lease on their own or together with other resources that are readily available, or if the various underlying assets are neither highly dependent on nor highly interrelated with other underlying assets in the arrangement, they are considered to be a separate lease component. In the event multiple underlying assets are identified, the lease consideration is allocated to the various components based on each of the component’s relative fair value. Operating lease 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 leasing arrangement. Operating lease assets and operating lease liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As most of our leases do not provide an implicit rate, in determining the operating lease liabilities, we use an estimate of our incremental borrowing rate. The incremental borrowing rate is determined using two alternative credit scoring models to estimate our credit rating, adjusted for collateralization. The calculation of the operating lease assets includes any lease payments made and excludes any lease incentives. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. For operating leases, we record operating lease assets and lease liabilities in our consolidated balance sheets. Lease expense for lease payments is recognized on a straight-line basis over the lease term. Short-term leases, or leases that have a lease term of 12 months or less at commencement date, are excluded from this treatment and are recognized on a straight-line basis over the term of the lease. We have not entered into any material short-term leases or financing leases as of December 31, 2021. Research and development costs Research and development costs, including those accrued as of each balance sheet date, are expensed as incurred. These costs include salaries and personnel-related costs, consulting fees, fees paid for contract research services, fees paid to contract research organizations, or CROs, and other third parties in connection with clinical trials and preclinical development activities, fees paid to investigative sites in connection with clinical studies, the costs associated with the product manufacturing, development, and distribution of clinical supplies, the costs of laboratory equipment and facilities, and other external costs. F-12 Nonrefundable advance payments for goods or services to be received in the future for use in research and development activities are deferred and capitalized. Additionally, there may be instances in which payments made to our vendors will exceed the level of services provided, and result in a prepayment of the research and development expense. The capitalized amounts are expensed as the related goods are delivered or the services are performed. We estimate the time period over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from our estimate, we adjust the accrual or prepaid accordingly. Stock-based compensation We account for stock-based compensation awards in accordance with ASC 718, Compensation –Stock Compensation, or ASC 718. For stock-based awards granted to employees and to members of the board of directors for their services and for participation in our employee stock purchase plan, we primarily estimate the grant date fair value of each option award using the Black-Scholes option-pricing model. The use of the Black-Scholes option-pricing model requires us to make assumptions with respect to the expected term of the option, the expected volatility of the common stock consistent with the expected life of the option, risk-free interest rates and expected dividend yields of the common stock. For awards subject to service-based vesting conditions, we recognize stock-based compensation expense equal to the grant date fair value of stock options on a straight-line basis over the requisite service period. For awards subject to both performance and service-based vesting conditions, we recognize stock-based compensation expense over the remaining service period if the performance condition is considered probable of achievement using management’s best estimates. Income taxes Income taxes are recorded in accordance with ASC 740, Accounting for Income Taxes, or ASC 740, which provides for deferred taxes using an asset and liability approach. We recognize deferred tax assets and liabilities for the expected future tax consequences of events that have been included in our financial statements or tax returns. We determine our deferred tax assets and liabilities based on differences between the financial reporting and tax bases of assets and liabilities, which are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. Valuation allowances are provided, if based upon the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. We also account for uncertain tax positions in accordance with the provisions of ASC 740. When uncertain tax positions exist, we recognize the tax benefit of tax positions to the extent that the benefit will more likely than not be realized. The determination as to whether the tax benefit will more likely than not be realized is based upon the technical merits of the tax position as well as consideration of the available facts and circumstances. Comprehensive income (loss) Comprehensive income (loss) is defined as the change in equity of a business enterprise during a period from transactions, and other events and circumstances, and currently consists of net loss and unrealized gains and losses on available-for-sale securities. Accumulated other comprehensive (loss) income consists entirely of unrealized gains and losses from available-for-sale securities as of December 31, 2021 and 2020. Net income (loss) per share Basic net income (loss) per share is calculated by dividing net income (loss) by the weighted-average shares outstanding during the period, without consideration for common stock equivalents. Diluted net income (loss) per share is calculated by adjusting weighted-average shares outstanding for the dilutive effect of common stock equivalents outstanding for the period, determined using the treasury-stock method. For purposes of the dilutive net income (loss) per share calculation, stock options, restricted stock units, or RSUs, performance-based stock units, or PSUs, and market-based stock units, or MSUs, for which the performance vesting conditions have been met, and employee stock purchase plan shares are considered to be common stock equivalents but are excluded from the calculation of diluted net income (loss) per share as their effect would be anti-dilutive. We utilize the control number concept in the computation of diluted earnings per share to determine whether potential common stock equivalents are dilutive. The control number used is loss from continuing operations. The control number concept requires that the same number of potentially dilutive securities applied in computing diluted earnings per share from continuing operations be applied to all other categories of income or loss, regardless of their anti-dilutive effect on such categories. Since we had a net loss for continuing operations for all periods presented, no dilutive effect has been recognized in the calculation of income (loss) from discontinued operations per share or net income (loss) per share. Segment and geographic information Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision maker, or decision-making group, in making decisions on how to F-13 allocate resources and assess performance. Our chief operating decision maker is the chief executive officer. Our chief operating decision maker and we view our operations and manage our business as one operating segment. Discontinued Operations We accounted for the sale of our oncology business in accordance with Accounting Standards Codification, ASC, 205 Discontinued Operations and Accounting Standards Update, ASU, No. 2014-08, Reporting of Discontinued Operations and Disclosures of Disposals of Components of an Entity. We followed the held-for-sale criteria as defined in ASC 360 and ASC 205. ASC 205 requires that a component of an entity that has been disposed of or is classified as held for sale and has operations and cash flows that can be clearly distinguished from the rest of the entity be reported as assets held for sale and discontinued operations. In the period a component of an entity has been disposed of or classified as held for sale, the results of operations for the periods presented are reclassified into separate line items in the consolidated statements of operations. Assets and liabilities are also reclassified into separate line items on the related consolidated balance sheets for the periods presented. The statements of cash flows for the periods presented are also reclassified to reflect the results of discontinued operations as separate line items. ASU 2014-08 requires that only a disposal of a component of an entity, or a group of components of an entity, that represents a strategic shift that has, or will have, a major effect on the reporting entity’s operations and financial results be reported in the financial statements as discontinued operations. ASU 2014-08 also provides guidance on the financial statement presentations and disclosures of discontinued operations. Due to the sale of the oncology business during the first quarter of 2021, in accordance with ASC 205, Discontinued Operations, we have classified the results of the oncology business as discontinued operations in our consolidated statements of operations and cash flows for all periods presented, see Note 3, Discontinued Operations. All assets and liabilities associated with our oncology business were therefore classified as assets and liabilities of discontinued operations in our consolidated balance sheets for the periods presented. All amounts included in the notes to the consolidated financial statements relate to continuing operations unless otherwise noted. Treasury Stock Treasury stock purchases are accounted for under the cost method whereby the entire cost of the acquired stock is recorded as treasury stock. Recent accounting pronouncements Leases In February 2016, the Financial Accounting Standard Board, or FASB issued Accounting Standards Update, or ASU, No. 2016-02, Leases (Topic 842), which was codified as ASC 842, Leases, and amended through subsequent ASUs. We adopted ASC 842 effective January 1, 2019 using the optional transition method provided for under ASU 2018-11, Leases (Topic 842): Targeted Improvements, whereby we applied the new lease requirements through a cumulative-effect adjustment, which after completing our implementation analysis, resulted in no material adjustment to our January 1, 2019 beginning accumulated deficit balance. We also elected the package of practical expedients provided for under ASU 2018-11, which allows us not to reassess whether contracts are or contain leases, lease classification, and whether initial direct costs qualify for capitalization. Additionally, as an accounting policy, for our building leases, we chose not to separate the non-lease components from the lease components and, instead, accounted for each non-lease component and lease component as a single component. We completed our assessment over the impact of the standard and determined that the only material leases that we hold are our building leases. Upon adoption of the standard on January 1, 2019, we recorded operating right of use assets of $59.9 million and operating lease liabilities of $77.3 million on our consolidated balance sheets. Other recent accounting pronouncements In June 2018, the FASB issued ASU 2018-07 – Compensation-Stock Compensation (Topic 718)-Improvements to Nonemployee Share-Based Payment Accounting. ASU 2018-07 simplifies the accounting for share-based payments to nonemployees by aligning it with the accounting for share-based payments to employees, with certain exceptions. ASU 2018-07 is effective for fiscal years beginning after December 15, 2018. The Company adopted the new standard as of January 1, 2019. There was no material impact to the Company’s consolidated financial position, results of operation, or cash flows. In December 2019, the FASB issued ASU 2019-12 – Income Taxes (Topic 740) Simplifying the Accounting for Income Taxes, as part of its initiative to reduce complexity in the accounting standards. The amendments in ASU 2019-12 eliminate certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. ASU 2019-12 also clarifies and simplifies other aspects of the accounting for income taxes. The amendments in ASU 2019-12 are effective for the fiscal years beginning after December 15, 2020. Early adoption is permitted, including adoption in any interim period. The Company has early F-14 adopted this amendment as of January 1, 2019. There was no material impact to the Company’s consolidated financial position, results of operation, or cash flows. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326), which introduces new guidance for the accounting for credit losses on instruments within its scope. The new guidance introduces an approach based on expected losses to estimate credit losses on certain types of financial instruments. Credit losses relating to available-for-sale debt securities will also be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. The guidance is effective for fiscal years beginning after December 31, 2019, including interim periods within those years. The Company adopted this amendment as of January 1, 2020, which eliminated the concept of other-than-temporary impairments and required credit losses on debt securities to be recorded through an allowance for credit losses instead of as a reduction in the amortized cost basis of the securities. Application of the amendments is through a cumulative-effect adjustment to retained earnings as of the effective date. There was no material impact to the Company’s consolidated financial position, results of operation, or cash flows. Other accounting standards that have been issued by the FASB or other standards-setting bodies that do not require adoption until a future date are not expected to have a material impact on our financial statements upon adoption. Subsequent events We considered events or transactions occurring after the balance sheet date, but prior to the issuance of the consolidated financial statements, for potential recognition or disclosure in our consolidated financial statements. All significant subsequent events have been properly disclosed in the consolidated financial statements. Note 3. Discontinued Operations On March 31, 2021, we completed the sale of our oncology business to Servier. We have determined the sale of the oncology business represents a strategic shift that had a major effect on our business and therefore met the criteria for classification as discontinued operations at March 31, 2021. Accordingly, the oncology business is reported as discontinued operations in accordance with ASC 205-20, Discontinued Operations. The related assets and liabilities of the oncology business are classified as assets and liabilities of discontinued operations in the consolidated balance sheets and the results of operations from the oncology business as discontinued operations in the consolidated statements of operations. Applicable amounts in prior years have been recast to conform to this discontinued operations presentation. We recognized a gain on the sale of the oncology business upon closing. The following table presents the assets and liabilities of the discontinued operations as of December 31, 2020: (in thousands) Assets Current assets: Accounts receivable, net Collaboration receivable – related party Collaboration receivable – other Inventory Prepaid expenses and other current assets Total current assets of discontinued operations Other non-current assets Total assets of discontinued operations Liabilities Current liabilities: Accounts payable Accrued expenses Total current liabilities of discontinued operations Liability related to the sale of future revenue, net of debt issuance costs Total liabilities of discontinued operations F-15 December 31, 2020 $ $ $ $ 21,328 2,123 1,948 14,698 7,762 47,859 2,601 50,460 9,120 29,339 38,459 261,269 299,728 The following table presents the net liabilities transferred for the sale of the oncology business at March 31, 2021: (in thousands) Assets Current assets: Accounts receivable, net Collaboration receivable – related party Collaboration receivable – other Inventory Prepaid expenses and other current assets Total current assets of discontinued operations Other non-current assets Total assets of discontinued operations Liabilities Current liabilities: Accounts payable Accrued expenses Total current liabilities of discontinued operations Liability related to the sale of future revenue, net of debt issuance costs Total liabilities of discontinued operations Net liabilities distributed to Servier The following table presents the gain on the sale for the year ended December 31, 2021: (in thousands) Cash proceeds Less: transaction and insurance costs Plus: net liabilities distributed, including working capital adjustment Gain on sale, pre-tax Income tax expense Gain on sale, net of tax As of December 31, 2021, there were no assets or liabilities classified as discontinued operations. March 31, 2021 25,386 2,253 2,438 16,190 7,125 53,392 2,234 55,626 4,245 30,288 34,533 264,281 298,814 (243,188) December 31, 2021 1,802,936 (53,573) 239,770 1,989,133 (12,799) 1,976,334 $ $ $ $ $ $ F-16 The following table presents the financial results of the discontinued operations: (in thousands) Revenues: Product revenue, net Collaboration revenue – related party Collaboration revenue – other Royalty revenue – related party Total revenue Cost and expenses: Cost of sales Research and development Selling, general and administrative Total cost and expenses (Loss) income from discontinued operations Non-cash interest expense for the sale of future revenue Gain on the sale of the oncology business (Loss) income from discontinued operations, pre-tax Income tax expense Net (loss) income from discontinued operations 2021 2020 2019 36,909 $ 1,350 491 2,659 41,409 706 41,564 8,551 50,821 (9,412) (5,697) 1,989,133 1,974,024 (12,799) 1,961,225 $ 121,089 $ 68,274 3,571 10,262 203,196 2,805 146,659 33,965 183,429 19,767 (17,832) — 1,935 — 1,935 $ 59,851 39,257 8,262 10,542 117,912 1,317 196,632 30,027 227,976 (110,064) — (110,064) — (110,064) $ $ In accordance with ASC 205-20, only expenses specifically identifiable and related to a business to be disposed may be presented in discontinued operations. As such, the research and development, marketing, selling and general and administrative expenses in discontinued operations include corporate costs incurred directly to solely support our oncology business. We have also entered into a Transition Services Agreement with Servier, through which we will provide transitional services related to discovery, clinical development, technical operations, commercial and general and administrative related activities for periods ranging from one month to approximately one year through March 31, 2022. The milestone payment for approval of vorasidenib and royalty payments related to vorasidenib and TIBSOVO® represent contingent consideration. Contingent consideration has been accounted for as a gain contingency in accordance with ASC 450, Contingencies, and will be recognized in earnings in the period when realizable. Note 4. Fair Value Measurements The following table summarizes our cash equivalents and marketable securities measured at fair value and by level (as described in Note 2. Summary of Significant Accounting Policies) on a recurring basis as of December 31, 2021: (In thousands) Cash equivalents Total cash equivalents Marketable securities: U.S. Treasuries Government securities Corporate debt securities Total marketable securities Total cash equivalents and marketable securities Level 1 Level 2 Level 3 Total 156,229 $ 156,229 21,524 $ 21,524 — $ — 177,753 177,753 — — — — 156,229 $ 309,658 166,104 607,505 1,083,267 1,104,791 $ — — — — — $ 309,658 166,104 607,505 1,083,267 1,261,020 $ $ There were no transfers between Level 1 and Level 2 and we had no financial assets or liabilities that were classified as Level 3 at any point during the year ended December 31, 2021. F-17 Note 5. Marketable Securities Marketable securities at December 31, 2021 consisted of the following: (In thousands) Current: U.S. Treasuries Government securities Corporate debt securities Total Current Non-current: U.S. Treasuries Government securities Corporate debt securities Total Non-current Total marketable securities Marketable securities at December 31, 2020 consisted of the following: (In thousands) Current: U.S. Treasuries Government securities Corporate debt securities Total Current Non-current: U.S. Treasuries Government securities Corporate debt securities Total Non-current Total marketable securities Amortized Cost Unrealized Gains Unrealized Losses Fair Value 269,109 $ 17,764 530,490 817,363 40,607 148,820 77,675 267,102 1,084,465 $ — $ 1 3 4 — — — — 4 $ (36) $ (10) (429) (475) 269,073 17,755 530,064 816,892 (23) (470) (234) (727) (1,202) $ 40,584 148,350 77,441 266,375 1,083,267 Amortized Cost Unrealized Gains Unrealized Losses Fair Value 113,559 $ 108,263 223,461 445,283 15,147 26,831 55,735 97,713 542,996 $ 134 $ 37 140 311 — 8 2 10 321 $ (21) $ (8) (72) (101) (10) — (105) (115) (216) $ 113,672 108,292 223,529 445,493 15,137 26,839 55,632 97,608 543,101 $ $ $ $ There were no material realized gains or losses on marketable securities for the years ended December 31, 2021 and 2020. At December 31, 2021 and 2020, we held 294 and 87 debt securities, respectfully, that were in an unrealized loss position for less than one year. We did not record an allowance for credit losses as of December 31, 2021 and December 31, 2020 related to these securities. The aggregate fair value of debt securities in an unrealized loss position at December 31, 2021 and 2020 was $950.5 million and $299.0 million, respectively. There were no individual securities that were in a significant unrealized loss position as of December 31, 2021 and 2020. We regularly review the securities in an unrealized loss position and evaluate the current expected credit loss by considering factors such as historical experience, market data, issuer-specific factors, and current economic conditions. We do not consider these marketable securities to be impaired as of December 31, 2021 and 2020. F-18 Note 6. Property and Equipment, net Property and equipment, net consisted of the following at December 31: (In thousands) Laboratory equipment Computer equipment and software Leasehold improvements Furniture and fixtures Office equipment Construction in progress Total property and equipment Less: accumulated depreciation Total property and equipment, net 2021 2020 22,165 $ 6,913 32,726 3,035 1,690 7,368 73,897 (44,974) 28,923 $ 23,858 6,945 32,568 3,035 1,651 4,111 72,168 (41,353) 30,815 $ $ Depreciation expense for the years ended December 31, 2021, 2020 and 2019 was $8.8 million, $9.4 million and $8.0 million, respectively. Note 7. Leases Our building leases are comprised of office and laboratory space under non-cancelable operating leases. These lease agreements have remaining lease terms of six years and contain various clauses for renewal at our option. The renewal options were not included in the calculation of the operating lease assets and the operating lease liabilities as the renewal option is not reasonably certain of being exercised. The lease agreements do not contain residual value guarantees. On April 11, 2019, we entered into an agreement to lease approximately 13,000 square feet of office space located at 38 Sidney Street, Cambridge, Massachusetts, or the 38 Sidney Lease, with Thirty-Eight Sidney Street, LLC. The initial term of the 38 Sidney Lease commenced on May 1, 2019 and expires on February 29, 2028. At the end of the lease term, we have the option to extend the 38 Sidney Lease for two consecutive terms of five years at fair market rent at the time of the extension. The 38 Sidney Lease provides us with the right to lease additional space within the 38 Sidney Street building and also includes rent escalation clauses and a tenant improvement allowance of $1.0 million. In connection with the 38 Sidney Lease, we also amended our existing building leases at 88 Sidney Street, Cambridge, Massachusetts and at 64 Sidney Street, Cambridge, Massachusetts to extend the initial terms of those leases by approximately three years through February 29, 2028. The amendments also provide us with the right to lease additional space at the 64 Sidney Street building. Our existing extension options for the 88 Sidney Street building and 64 Sidney Street building continue as set forth in the existing leases for those buildings. The components of lease expense and other information related to leases were as follows: (In millions) Operating Lease Costs Cash paid for amounts included in the measurement of operating lease liabilities 2021 2020 2019 $ 15.2 $ 14.4 15.2 $ 14.4 15.1 12.8 We have not entered into any material short-term leases or financing leases as of December 31, 2021. In arriving at the operating lease liabilities as of December 31, 2021, we applied the weighted-average incremental borrowing rate of 5.7% from inception over a weighted-average remaining lease term of 6.2 years. In arriving at the operating lease liabilities as of December 31, 2020, we applied the weighted- average incremental borrowing rate of 5.7% over a weighted-average remaining lease term of 7.2 years. F-19 As of December 31, 2021, undiscounted minimum rental commitments under non-cancelable leases, for each of the next five years and total thereafter, were as follows: (In thousands) 2022 2023 2024 2025 2026 Thereafter Undiscounted minimum rental commitments Interest Total operating lease liabilities $ $ 15,560 18,126 18,660 19,507 20,151 24,234 116,238 (19,751) 96,487 We provided our landlord a standby letter of credit of $2.9 million as security for our leases. We are not required to maintain any cash collateral for the standby letter of credit. In August 2021, we entered into a long-term sublease agreement for 13,000 square feet of the office space at 38 Sidney Street Cambridge, Massachusetts. The term of the lease runs until December 2024. We recorded operating sublease income of $0.5 million for the year ended December 31, 2021 in other income, net in the consolidated statements of operations. As of December 31, 2021, the future minimum lease payments to be received under the long-term sublease agreement were as follows: (In thousands) 2022 2023 2024 Total Note 8. Accrued Expenses Accrued expenses consisted of the following at December 31: (In thousands) Accrued compensation Accrued research and development costs Accrued professional fees Accrued other Total accrued expenses Note 9. Commitments and Contingent Liabilities Manufacturing Commitments 1,118 1,152 1,186 3,456 $ 2021 2020 $ $ 19,818 $ 5,980 2,335 3,834 31,967 $ 20,345 5,444 2,897 2,115 30,801 We are party to various agreements with contract manufacturing organizations that we are not contractually able to terminate for convenience and avoid any and all future obligations to the vendors. Under such agreements, we are obligated to make certain minimum payments, with the exact amounts in the event of termination to be based on the timing of the termination and the exact terms of the agreement. F-20 Legal Contingencies From time to time, we may be involved in disputes and legal proceedings in the ordinary course of business. These proceedings may include allegations of infringement of intellectual property, employment or other matters. We do not have any ongoing legal proceedings that, based on our estimates, could have a material effect on our consolidated financial statements. Note 10. Common Stock We are authorized to issue 125,000,000 shares of our common stock. Holders of common stock are entitled to one vote per share. Additionally, holders of common stock are entitled to receive dividends, if and when declared by our board of directors, and to share ratably in our assets legally available for distribution to our shareholders in the event of liquidation. Note 11. Share-Based Payments Stock incentive plans In June 2013, our Board of Directors adopted and, in July 2013 our stockholders approved, the 2013 Stock Incentive Plan, or the 2013 Plan. The 2013 Plan became effective upon the closing of our initial public offering and provides for the grant of incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock awards, restricted stock units, or RSUs, performance-based share units, or PSUs, and other stock-based awards to employees, non-employees and non-employee directors. Following the adoption of the 2013 Plan, we granted no further stock options or other awards under the 2007 Stock Incentive Plan, or the 2007 Plan. Any options or awards outstanding under the 2007 Plan at the time of adoption of the 2013 Plan remain outstanding and effective. As of December 31, 2021, the total number of shares reserved under the 2007 Plan and the 2013 Plan was 11,422,409, and we had 5,343,905 shares available for future issuance under the 2013 Plan. The 2013 Plan provides for an annual increase, to be added on the first day of each fiscal year, beginning with the fiscal year ending December 31, 2014 and continuing until the expiration of the 2013 Plan, equal to the lesser of (i) 2,000,000 shares of common stock, (ii) 4% of the outstanding shares of common stock on such date or (iii) an amount determined by our Board of Directors. On January 1, 2022, the annual increase for the 2013 Plan resulted in an additional 2,000,000 shares authorized for issuance. Stock options The following table summarizes the stock option activity of all stock incentive plans for the year ended December 31, 2021: Outstanding at December 31, 2020 Granted Exercised Forfeited/Expired Outstanding at December 31, 2021 Exercisable at December 31, 2021 Vested and expected to vest at December 31, 2021 Number of Stock Options 6,143,046 $ 1,073,989 (758,685) (1,659,524) 4,798,826 $ 3,367,239 $ 4,798,826 $ Weighted- Average Exercise Price 58.46 55.54 44.73 62.70 58.51 60.52 58.51 Weighted- Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) 6.68 $ 13,714 6.24 $ 5.25 $ 6.24 $ 4,697 4,697 4,697 The weighted-average grant date fair value of options granted was $31.20, $32.10 and $36.44 during the years ended December 31, 2021, 2020 and 2019, respectively. The total intrinsic value of options exercised was $8.5 million, $10.4 million and $6.4 million during the years ended December 31, 2021, 2020 and 2019, respectively. At December 31, 2021, the total unrecognized compensation expense related to unvested stock option awards was $39.8 million, which we expect to recognize over a weighted-average period of approximately 2.33 years. F-21 Restricted stock units Upon vesting, each RSU entitles the holder to receive a specified number of shares of our common stock. The following table presents RSU activity for the year ended December 31, 2021: Unvested shares at December 31, 2020 Granted Vested Forfeited Unvested shares at December 31, 2021 Number of Stock Units Weighted-Average Grant Date Fair Value 1,284,378 $ 835,698 (403,138) (714,014) 1,002,924 $ 50.78 55.49 56.90 51.81 51.51 As of December 31, 2021, there was approximately $29.5 million of total unrecognized compensation expense related to RSUs, which we expect to be recognized over a weighted-average period of 1.74 years. Performance-based stock units At the achievement of the performance-based and service-based vesting criteria, each PSU entitles the holder to receive a specified number of shares of our common stock. The following table presents PSU activity for the year ended December 31, 2021: Unvested shares at December 31, 2020 Granted Vested Forfeited Unvested shares at December 31, 2021 Number of Stock Units Weighted-Average Grant Date Fair Value 142,229 $ 141,000 — (49,170) 234,059 $ 54.28 54.20 — 54.08 54.28 Stock-based compensation expense associated with these PSUs is recognized if the underlying performance condition is considered probable of achievement using our management’s best estimates. As of December 31, 2021, there was no unrecognized compensation expense related to PSUs with performance-based vesting criteria that are considered probable of achievement that we expect to recognize. There is $12.7 million of total unrecognized compensation expense related to PSUs with performance-based vesting criteria that are considered not probable of achievement. Market-based stock units The Company has issued certain equity awards that contain market based vesting conditions, in which shares of stock are earned at vesting based on stock price performance. The fair value of MSUs are estimated using a Monte Carlo simulation model. Assumptions and estimates utilized in the model include the risk-free interest rate, dividend yield, expected stock volatility and the estimated period to achievement of the market condition. The following table presents MSU activity for the year ended December 31, 2021: Unvested shares at December 31, 2020 Granted Unvested shares at December 31, 2021 Number of Stock Units Weighted-Average Grant Date Fair Value 42,695 $ — 42,695 $ 41.50 — 41.50 As of December 31, 2021, there was no remaining unrecognized compensation expense related to MSUs. 2013 Employee Stock Purchase Plan In June 2013, our Board of Directors adopted, and in July 2013 our stockholders approved, the 2013 Employee Stock Purchase Plan, or the 2013 ESPP. On January 1, 2022, the annual increase for the 2013 ESPP resulted in an additional 509,091 shares authorized for issuance. We issued 94,888 shares and 120,293 shares during the years ended December 31, 2021 and 2020, respectively, under the 2013 ESPP. The 2013 ESPP provides participating employees with the opportunity to purchase up to an F-22 aggregate of 1,345,454 shares of our common stock. As of December 31, 2021, we had 885,556 shares available for future issuance under the 2013 ESPP. Stock-based compensation expense During the years ended December 31, 2021, 2020 and 2019, we recorded stock-based compensation expense for employee and non-employee stock options, RSUs, PSUs, ESPP shares and other stock-based awards. Stock-based compensation expense by award type included within the consolidated statements of operations is as follows: (In thousands) Stock options Restricted stock units Performance-based stock units Employee Stock Purchase Plan Other stock awards Total stock-based compensation expense 2021 2020 2019 $ $ 30,985 $ 21,510 — 1,013 — 53,508 $ 37,705 $ 19,893 1,760 1,463 781 61,602 $ Expenses related to equity-based awards were allocated as follows in the consolidated statements of operations: (In thousands) Research and development expense Selling, general and administrative expense Total stock-based compensation expense 2021 2020 2019 $ $ 24,527 $ 28,981 53,508 $ 27,119 $ 34,483 61,602 $ 38,650 14,733 2,239 1,437 991 58,050 27,287 30,763 58,050 No related tax benefits were recognized for the years ended December 31, 2021, 2020 and 2019. The fair value of each stock option granted to employees and nonemployees is estimated on the date of grant using the Black-Scholes option-pricing model. The following table summarizes the weighted average assumptions used in calculating the grant date fair value of the awards: Risk-free interest rate Expected dividend yield Expected term (in years) Expected volatility Expected term 2021 2020 2019 .72 % — 6.05 61.72 % 1.24 % — 6.05 73.80 % 2.32 % — 6.06 76.19 % We use the “simplified method” as prescribed by the Securities and Exchange Commission Staff Accounting Bulletin No. 107, Share Based Payments, to estimate the expected term of stock option grants. Under this approach, the weighted-average expected life is presumed to be the average of the contractual term of ten years and the weighted-average vesting term of the stock options, taking into consideration multiple vesting tranches. We utilize this method due to lack of historical data and the plain-vanilla nature of our share-based awards. Volatility The expected volatility has been determined using Agios' historical volatilities for a period equal to the expected term of the option grant. Risk-free rate The risk-free rate is based on the yield curve of U.S. Treasury securities with periods commensurate with the expected term of the options being valued. Dividends We have never paid, and do not anticipate paying, any cash dividends in the foreseeable future, and, therefore, use an expected dividend yield of zero in the option-pricing model. Forfeitures We account for forfeitures as they occur and, therefore, do not estimate forfeitures. F-23 Note 12. Income Taxes The domestic and foreign components of loss from continuing operations before income taxes are as follows: (In thousands) Domestic Foreign Total 2021 2020 2019 $ $ (356,665) $ 155 (356,510) $ (330,669) $ 1,364 (329,305) $ (322,471) 21,063 (301,408) We did not have any material provision for income taxes for the years ended December 31, 2021, 2020 and 2019. A reconciliation of the expected income tax benefit (expense) computed using the federal statutory income tax rate to our effective income tax rate is as follows for the years ended December 31, 2021, 2020 and 2019: Income tax benefit computed at federal statutory tax rate State taxes, net of federal benefit Change in valuation allowance General business credits and other credits Permanent differences and other adjustments Stock based compensation Foreign rate differential Total 2021 2020 2019 21.0 % 2.6 % (24.5)% 5.3 % (3.9)% (0.5)% — % — % 21.0 % 2.5 % (28.2)% 7.0 % (1.6)% (0.7)% — % — % 21.0 % 3.9 % (29.5)% 6.9 % (1.9)% (0.9)% 0.5 % — % Deferred income taxes reflect the net tax effects of temporary differences between the carrying amount of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of our deferred tax assets and liabilities for the years ended December 31, 2021 and 2020 are as follows: (In thousands) Deferred tax assets: Net operating loss carryforwards Tax credit carryforwards Purchased intangible assets Stock-based compensation Operating lease liability Non-deductible accruals and reserves, including inventory RPI Royalty Sale Other Total deferred tax assets Depreciation and amortization Operating lease right of use asset Less: valuation allowance Net deferred taxes 2021 2020 39,186 $ 152,128 12,150 27,217 22,963 4,033 — — 257,677 (3,168) (18,031) (236,478) — $ 310,841 163,589 13,543 34,284 25,085 12,730 58,048 1,230 619,350 (4,002) (20,596) (594,752) — $ $ On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law making several changes to the Internal Revenue Code. The changes include, but are not limited to: increasing the limitation on the amount of deductible interest expense, allowing companies to carryback certain net operating losses, and increasing the amount of net operating loss carryforwards that corporations can use to offset taxable income. The tax law changes in the Act did not have a material impact on the Company’s income tax provision. As of December 31, 2021, we had net operating loss carryforwards, or NOLs, available to reduce federal, state and foreign income taxes of approximately $22.1 million, $420.0 million and $65.2 million, respectively. The federal NOLs have an indefinite life, however, if not utilized, the state and foreign NOLs begin to expire in 2035 and 2024, respectively. At December 31, 2021, we also had available research and development tax credits for federal and state income tax purposes of F-24 approximately $13.5 million and $24.0 million, respectively. If not utilized, the credits begin to expire in 2029 and 2027 for federal and state income tax purposes. We engaged in clinical testing activities and incurred expenses that qualify for the federal orphan drug tax credit. At December 31, 2021, we had available orphan drug tax credits for federal purposes only of approximately $119.6 million. If not utilized, the orphan drug credits begin to expire in 2035. As provided by Section 382 of the Internal Revenue Code of 1986, or Section 382, and similar state provisions, utilization of NOLs and tax credit carryforwards may be subject to substantial annual limitations due to ownership change limitations that have previously occurred or that could occur in the future. Ownership changes may limit the amount of NOLs and tax credit carryforwards that can be utilized annually to offset future taxable income and tax, respectively. In general, an ownership change, as defined by Section 382, results from transactions that increase the ownership of five percent stockholders in the stock of a corporation by more than 50 percent in the aggregate over a three year period. We completed a review of our changes in ownership through December 31, 2021 and determined that transactions have resulted in no ownership changes during the year ended December 31, 2021, as defined by Section 382. The impact of the historical ownership changes has been reflected in our deferred tax assets in the table above. As required by ASC 740, we have evaluated the positive and negative evidence bearing upon the realizability of our deferred tax assets. Based on the weight of available evidence, both positive and negative, we recorded a valuation allowance of $236.5 million and $594.8 million as of December 31, 2021 and December 31, 2020, respectively, because we have determined that it is more likely than not that these assets will not be fully realized. The valuation allowance decreased by $358.3 million for the year ended December 31, 2021 primarily due to the utilization of net operating losses and tax credits and increased by $92.5 million for the year ended December 31, 2020 primarily due to the generation of net operating losses. The following table presents our change in valuation allowance for the years ended December 31, 2021 and, 2020: (in thousands) 2021 2020 Valuation allowance at the beginning of the year (Decrease) Increase for the current period Valuation allowance at the end of the year $ $ 594,752 $ (358,274) 236,478 $ 502,209 92,543 594,752 In December 2019, the FASB issued Accounting Standards Update No. 2019-12 – Income Taxes (Topic 740) Simplifying the Accounting for Income Taxes, as part of its initiative to reduce complexity in the accounting standards. The amendments in ASU 2019-12 eliminate certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. ASU 2019-12 also clarifies and simplifies other aspects of the accounting for income taxes. The amendments in ASU 2019-12 are effective for the fiscal years beginning after December 15, 2020. Early adoption is permitted, including adoption in any interim period. The Company has early adopted this amendment as of January 1, 2019. There was no material impact to the Company’s consolidated financial position, results of operation, or cash flows. As of December 31, 2021, the unremitted earnings of our foreign subsidiaries are not material. We have not provided for U.S. income taxes or foreign withholding taxes on these earnings as it is our current intention to permanently reinvest these earnings outside the U.S. The tax liability on these earnings is also not material. Events that could trigger a tax liability include, but are not limited to, distributions, reorganizations or restructurings and/or tax law changes. We apply the accounting guidance in ASC 740 related to accounting for uncertainty in income taxes. Our reserves related to taxes are based on a determination of whether, and how much of, a tax benefit taken by us in our tax filings or positions is more likely than not to be realized following resolution of any potential contingencies present related to the tax benefit. The following table presents our unrecognized tax benefits activity for the years ended December 31, 2021 and 2020: (In thousands) Unrecognized tax benefits at the beginning of the year Gross increases - current period tax positions Unrecognized tax benefits at the end of the year 2021 2020 $ $ 21,131 $ 3,089 24,220 $ 17,460 3,671 21,131 We will recognize interest and penalties related to uncertain tax positions above the line as an expense to continuing operations. As of December 31, 2021 and 2020, we had no accrued interest or penalties related to uncertain tax positions and no such amounts have been recognized. If all of the Company’s unrecognized tax benefits as of December 31, 2021 were to become recognizable in the future, we would record $24.2 million of unrecognized tax benefits. The uncertain tax position does not impact our effective income tax rate due to the full valuation allowance. F-25 We are subject to taxation in the United States, Switzerland, Netherlands, Germany, Italy and France. The statute of limitations for assessment by the IRS and state tax authorities is open for tax years ending December 31, 2021, 2020, 2019, and 2018, although carryforward attributes that were generated for tax years prior to 2018 may still be adjusted upon examination by the IRS or state tax authorities if they either have been, or will be, used in a future period. The statute of limitations for assessment in Switzerland remains open for tax years ending December 31, 2021, 2020, 2019, and 2018. The Company’s subsidiaries in the Netherlands and Germany were incorporated in 2019 and therefore the statute of limitations for assessment that remain open in these jurisdictions are for the tax years ending December 31, 2021, 2020 and 2019. The Company’s subsidiaries in Italy and France were incorporated in 2020 and therefore the statute of limitations for assessment that remain open in these jurisdictions are for the tax years ending December 31, 2021 and 2020. There are currently no federal, state or foreign audits in progress. As of December 31, 2021, we have an income tax receivable of $2.9 million recorded within prepaid expenses and other assets. There was no income tax receivable at December 31, 2020. Note 13. Defined Contribution Benefit Plan We sponsor a 401(k) retirement plan, in which substantially all of our full-time employees are eligible to participate. Participants may contribute a percentage of their annual compensation to this plan, subject to statutory limitations. We will make matching contributions equal to 100% of the employee’s contributions, subject to a maximum of 4% of eligible compensation. Note 14. Net Income (Loss) per Share Basic net loss per share is calculated by dividing net loss by the weighted-average shares outstanding during the period, without consideration for common stock equivalents. Diluted net loss per share is calculated by adjusting the weighted average shares outstanding for the dilutive effect of common stock equivalents outstanding for the period, determined using the treasury stock method. For purposes of the dilutive net loss per share calculation, stock options, RSUs, PSUs and MSUs for which the performance and market vesting conditions, respectively, have been deemed probable, and 2013 ESPP shares are considered to be common stock equivalents, while PSUs and MSUs with performance and market vesting conditions, respectively, that were not deemed probable as of December 31, 2021 are not considered to be common stock equivalents. We utilize the control number concept in the computation of diluted earnings per share to determine whether potential common stock equivalents are dilutive. The control number used is loss from continuing operations. The control number concept requires that the same number of potentially dilutive securities applied in computing diluted earnings per share from continuing operations be applied to all other categories of income or loss, regardless of their anti-dilutive effect on such categories. Since we had a net loss for continuing operations for all periods presented, no dilutive effect has been recognized in the calculation of income from discontinued operations per share. Basic and diluted net loss per share was the same for all periods presented. The following common stock equivalents were excluded from the calculation of diluted net loss per share applicable to common stockholders for the periods indicated because including them would have had an anti-dilutive effect: Stock options Restricted stock units Performance-based stock units Employee Stock Purchase Plan shares Total Note 15. Share Repurchase Program 2021 4,798,826 1,002,924 — 39,864 5,841,614 Years ended December 31, 2020 6,143,046 1,284,378 — 46,439 7,473,863 2019 6,201,485 766,953 72,046 49,418 7,089,902 On March 25, 2021, we announced that our board of directors authorized the Repurchase Program for the repurchase of up to $1.2 billion of our outstanding shares of common stock. On March 31, 2021, in connection with the Repurchase Program, we entered into a definitive share repurchase agreement with BMS to repurchase 7.1 million shares of our common stock held by certain subsidiaries of BMS for an aggregate purchase price of $344.5 million, or $48.38 per share. This repurchase was completed on April 5, 2021. Further, on April 2, 2021, in connection with the Repurchase Program, we entered into a Rule 10b5-1 repurchase plan to which we may repurchase up to $600 million of shares of our common stock. As of December 31, 2021, we have repurchased F-26 approximately 9.1 million shares of common stock for $458.0 million, or $50.35 per share, under the Rule 10b5-1 repurchase plan. In total, as of December 31, 2021, we have repurchased 16.2 million shares of common stock for $802.5 million, or $49.49 per share, under the Repurchase Program. On October 5, 2021, we terminated our Rule 10b5-1 share repurchase plan and on October 13, 2021 we entered into a Rule 10b-18 repurchase plan that allows us to conduct open market repurchases over time up to our remaining authorization under the Repurchase Program. Repurchased shares are held as treasury stock until they are retired or re-issued. Treasury stock purchases are accounted for under the cost method whereby the entire cost of the acquired stock is recorded as treasury stock. Repurchases of our common stock are accounted for as of the settlement date. There were no retirements or re-issuances of treasury stock during the year ended December 31, 2021. Note 16. Selected Quarterly Financial Data (Unaudited) The following table contains quarterly financial information for 2021 and 2020: 2021 (in thousands, except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Loss from continuing operations Net income (loss) from discontinued operations, net of tax Net income (loss) Net loss from continuing operations per share - basic and diluted Net income (loss) from discontinued operations per share - basic and diluted Net income (loss) per share - basic and diluted $ (90,877) $ 1,965,202 1,874,325 (1.31) 28.26 26.95 (82,790) $ (3,427) (86,217) (1.36) (0.06) (1.41) (84,259) $ (4,507) (88,766) (1.48) (0.08) (1.56) (98,584) 3,957 (94,627) (1.81) 0.07 (1.74) 2020 (in thousands, except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Loss from continuing operations Net income (loss) from discontinued operations, net of tax Net income (loss) Net loss from continuing operations per share - basic and diluted Net income (loss) from discontinued operations per share - basic and diluted Net income (loss) per share - basic and diluted $ (84,094) $ 43,838 (40,256) (1.23) 0.64 (0.59) (81,495) $ (8,983) (90,478) (1.18) (0.13) (1.31) (79,175) $ (19,804) (98,979) (1.15) (0.29) (1.43) (84,541) (13,116) (97,657) (1.22) (0.19) (1.41) 17. Subsequent Events On February 17, 2022, the FDA approved PYRUKYND® for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency in the United States. F-27  THIS SUBLEASE AGREEMENT (the “Sublease”) is made as of the 27th day of July, 2021, by and between Agios Pharmaceuticals, Inc., a Delaware corporation (“Sublandlord”) and Prime Medicine, Inc., a Delaware corporation (“Subtenant”). SUBLEASE AGREEMENT RECITALS: WHEREAS, Up 64 Sidney Street, LLC, a Delaware limited liability company, as landlord (“Landlord”), and Sublandlord, as tenant, are parties to that certain lease agreement dated November 17, 2017 (the “Prime Lease”) pursuant to which Landlord has leased to Sublandlord certain premises containing approximately 27,083 rentable square feet of laboratory and office space (the “Premises”) on the fourth (4 ) floor of the building commonly known as 64 Sidney Street, Cambridge, Massachusetts (the “Building”). A redacted copy of the Prime Lease is attached hereto as Exhibit A. rd WHEREAS, Sublandlord desires to sublease to Subtenant and Subtenant desires to sublease from Sublandlord the Premises in accordance with the provisions of this Sublease. NOW THEREFORE, in consideration of the premises, the rents, and the mutual covenants herein contained, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows: 1. Sublease of Premises. Sublandlord does hereby sublease to Subtenant, and Subtenant does hereby sublease from Sublandlord, for the Term (as hereinafter defined) and upon the conditions hereafter provided, the Premises, as further described on Exhibit B to the Prime Lease and as depicted on Exhibit C to the Prime Lease located in the Building. The Building is a part of the University Park at MIT as depicted on Exhibit C-1 to the Prime Lease. The Premises being sublet to Subtenant by Sublandlord under this Sublease are the same premises being leased by Sublandlord from Landlord under the Prime Lease. 2. Term. The Term of this Sublease shall commence on the later of (i) the date of full execution and delivery of Landlord’s consent to this Sublease, and (ii) the date of the vacating and decommissioning of the Premises by the current tenant, and in no event later than April 15, 2022 (the “Commencement Date”), and shall expire, absolutely and without the need for notice from either party to the other, on that date which is three (3) years after the Commencement Date, unless the Commencement Date does not occur on the 1 calendar day of a calendar month, in which case the Term shall end on the date which is three (3) years following the last day of the calendar month in which the Commencement Date occurs (the “Term”), unless otherwise terminated as hereinafter provided. Notwithstanding the foregoing, in the event that the Commencement Date has not occurred by June 1, 2022, Sublandlord and Subtenant shall each have the right to terminate this Sublease, which shall then be of no further force or effect. st 3. Rent. a. Beginning on the Commencement Date (the “Rent Commencement Date”), Subtenant shall pay to Sublandlord, in lawful money of the United States, base annual rent (the “Base Rent”) during the first year of the Term in the amount of Three Million One Hundred Fourteen Thousand Five Hundred Forty Five and 00/100 Dollars ($3,114,545.00), payable in equal monthly installments of Two Hundred Fifty Nine Thousand Five Hundred Forty Five and 42/100 ($259,545.42) which are payable on or before the first (1 ) day of each calendar month during the Term, without notice or demand and without abatement, set-off or deduction (except that Subtenant shall pay the first monthly installment on the execution hereof), which Base Rent shall be adjusted on each anniversary of the Commencement Date (unless the Commencement Date is other than the first day of a month, in which event the Base st 1 100565089.1 Annual Rent shall be adjusted on the anniversary of the first day of the calendar month following the Commencement Date) as follows: Period Base Annual Rent Base Monthly Rent Year 1 $ 3,114,545.00 $ 259,545.42 Year 2 $ 3,207,981.35 $ 267,331.78 Year 3 $ 3,304,220.79 $ 275,351.73 b. Subtenant shall also be responsible for any and all charges, fees or expenses payable under the Prime Lease that are attributable to the Subtenant’s use or occupancy of the Premises, including: (i) the Tenant’s Tax Expense Allocable to the Premises (as such term is defined in Section 3.2(b) of the Prime Lease); (ii) the Tenant’s Operating Expenses Allocable to the Premises (as such term is defined in Section 3.3(b) of the Prime Lease); (iii) any additional rent payable on account of Subtenant’s use of excess heating, ventilation and air conditioning and electricity, but in no event shall Subtenant use more electricity in the Subleased Premises than that which the feeders, risers, panels and other electricity supply equipment serving the Premises are capable of safely supplying; (iv) amounts payable to Landlord or Sublandlord for separately sub- metered utilities and services pursuant to Section 3.4 of the Prime Lease; and (v) any additional rent payable on account of any services provided by Landlord or Sublandlord to Subtenant or otherwise attributable to or arising out of the use or occupancy of the Premises (collectively, “Additional Rent”). Additional Rent shall be paid within ten (10) days of Tenant’s receipt of Landlord’s invoice therefor. Notwithstanding anything to the contrary set forth in this subsection 3(b), Sublandlord shall provide to Subtenant, at least thirty (30) days prior to the beginning of each calendar year during the Sublease Term, an estimated expense budget. c. During the Term, the Subtenant shall pay directly to the provider charges for all separately metered utilities serving the Premises, including gas and electric, and shall pay to Sublandlord as Additional Rent its pro rata share of water, sewer and other services and utilities which shall be prorated to reflect Subtenant’s proportional usage based upon Subtenant’s proportional occupancy of the Building. d. Supplementing, but without limiting the provisions of Sections 3.b. and 3.c. above, Subtenant agrees to pay to Sublandlord as Additional Rent, all charges for operating expenses, taxes, insurance, utilities and all other charges for which Sublandlord is responsible, whether under the Prime Lease or otherwise (other than those that are expressly stated in this Sublease to be Sublandlord’s responsibility), relating to the Premises and payable by Sublandlord to Landlord. The parties intend that this Sublease shall constitute a “net lease,” so that rent shall provide Sublandlord with “net” return for the Term, free of any expenses or charges with respect to the Premises, except as otherwise provided in this Sublease. 4. Extension Option. On the conditions (which conditions Sublandlord may waive in its sole discretion by written notice to Tenant) that both at the time Subtenant exercises the Extension Option (as defined below) or at any time thereafter until the commencement of the corresponding Extension Term (as defined below) (i) there exists no event of default hereunder, (ii) this Sublease is still in full force and effect, and (iii) Sublandlord shall have determined in its sole discretion, and shall have advised Subtenant of such determination within fifteen (15) days of receipt of Subtenant’s Extension Notice (as hereinafter defined), to make the Premises available to Subtenant for lease for the Extension Term, Subtenant may extend the term of the Sublease (the “Extension Option”) for one (1) period of six (6) months (the “Extension Term”) by delivering written notice of its exercise of the Extension Option no later than nine (9) months prior to the expiration of the Term (the “Extension Notice”). The Base Rent for such Extension Term shall be at the prevailing fair market rate for comparable space for a 5-year term in the Mid- Cambridge submarket, as such fair market rate is determined by Sublandlord in its sole but reasonable discretion. 2 100565089.1 5. Condition of Premises. Sublandlord shall deliver the Premises to Subtenant in it’s “as is, where is” condition provided that the Premises shall be appropriately demised and with all required base building systems, including, but not limited to, HVAC, electrical, life safety and plumbing systems in good working condition and suitable for the permitted use hereunder. Sublandlord shall be responsible for maintaining all base building systems, including, but not limited to, HVAC, electrical, life safety and plumbing systems. Subtenant’s taking possession of the Premises shall be conclusive evidence as against Subtenant that the Premises were in good order and satisfactory condition when Subtenant took possession. No promise of Sublandlord to alter, remodel or improve the Premises and no representation respecting the condition of the Premises or the Building have been made to Subtenant. Additionally, throughout the Term, Subtenant shall have the right to use the existing furniture and IT/AV equipment in the Premises; such existing furniture and IT/AV equipment is listed herein in Exhibit B (the “Existing Furniture and Equipment”); such use is included as part of Base Rent. Subtenant shall have no obligation to remove the Existing Furniture and Equipment at the end of the Term unless Subtenant and Sublandlord mutually agree that Subtenant will purchase any of the Existing Furniture and Equipment, in which event Subtenant shall remove the same at the expiration or earlier termination of the Sublease Term. Use. Subtenant will use and occupy the Premises solely laboratory and general office use purposes for research and development and any ancillary uses related thereto and for no other purpose except as may be permitted by applicable law. 6. 7. Security Deposit/Letter of Credit. As a material inducement for Sublandlord to enter into this Sublease, Subtenant shall deliver on the date hereof an irrevocable, unconditional standby letter of credit issued by Subtenant’s financial institution for the benefit of Sublandlord in the face amount of Seven Hundred Seventy Eight Thousand Six Hundred Thirty Six and 26/100 ($778,636.26) Dollars (the “Letter of Credit”), receipt whereof is hereby acknowledged by Sublandlord. Subtenant shall cause the Letter of Credit to be renewed annually and shall provide to Sublandlord written confirmation of such renewal at least thirty (30) days prior to its expiration. Sublandlord may submit to the issuer of any Letter of Credit hereunder from time to time draws for payment as Sublandlord deems necessary or desirable in order to cure or otherwise remedy any Subtenant default. Within ten (10) days after submission of any request for payment by Sublandlord under any Letter of Credit (a “Draw”), Subtenant shall deliver to Sublandlord written amendment of such Letter of Credit restoring the amount available to be drawn thereunder by Sublandlord to the same level existing immediately prior to the Draw or otherwise as required hereunder. 8. Parking. Commencing on the Rent Commencement Date and continuing through the Term, Subtenant shall be entitled to use and shall pay for 1.5 parking passes per 1,000 square feet (which shall initially be equal to forty-one (41) parking passes) in accordance with Section 2.4 of the Prime Lease. For each such parking pass, Subtenant shall pay the higher rate of either (i) $325.00 per month or (ii) the current monthly parking rate charged by Landlord in accordance with Section 2.4 of the Prime Lease. 9. Default Under and/or Termination of the Prime Lease. a. If for any reason the term of the Prime Lease is terminated prior to the anticipated expiration date of this Sublease, this Sublease shall thereupon terminate, and Sublandlord shall not be liable to Subtenant by reason thereof for damages or otherwise (except those arising out of Sublandlord’s failure to remit rent to Landlord if rent hereunder is actually received by Sublandlord from Subtenant, Sublandlord’s default hereunder) and Sublandlord shall return to Subtenant rent paid in advance by Subtenant, if any, prorated as of the date of the termination of the Prime Lease. 3 100565089.1  b. If Landlord elects to take over the right, title and interest of Sublandlord in accordance with the Prime Lease, it is understood and agreed that Landlord shall not (i) be liable for any previous act or omission of Sublandlord under this Sublease, (ii) be subject to any offset which theretofore accrued to Subtenant against Sublandlord, and (iii) be bound by any previous modification of this Sublease to which it has not consented, or by any previous prepayment of more than one month’s rent. In such event, Subtenant shall also, promptly upon Landlord’s request, execute and deliver all instruments necessary or appropriate to confirm such attornment and recognition. c. From and after the date of any default by Sublandlord resulting in a termination, reentry or dispossession under the Prime Lease, until the date that this Sublease is terminated in accordance with this Section 7, Subtenant shall pay all Base Annual Rent, Additional Rent and any other sums due by Subtenant under the Sublease directly to Landlord and Subtenant shall continue to perform all of its obligations hereunder. 10. Notice of Default. Sublandlord hereby agrees to provide to Subtenant, within ten (10) business days after receipt thereof, a copy of any notice of default under the Prime Lease which Sublandlord receives from Landlord. Subtenant shall have the option of curing any monetary default which is not being contested by Sublandlord by forwarding to Sublandlord sufficient funds to cure such default. Sublandlord hereby agrees to immediately remit such sums to Landlord. 11. Subordination to and Incorporation of Terms of Prime Lease. a. This Sublease is in all respects subject and subordinate to any mortgage, deed, deed of trust, ground lease or other instrument now or hereafter encumbering the Building or the land on which it is located, to the terms and conditions of the Prime Lease and to the matters to which the Prime Lease, including any amendments thereto, is or shall be subordinate. The terms, provisions, covenants, stipulations, conditions, rights, obligations, remedies and agreements of the Prime Lease are incorporated into this Sublease by reference and made a part hereof as if herein set forth at length, and shall, as between Sublandlord and Subtenant (as if they were the landlord and the tenant, respectively, under the Prime Lease and as if the Premises were the Premises demised under the Prime Lease), constitute the terms of this Sublease, except to the extent that they do not relate to the Premises or are inapplicable to, or modified or eliminated by, the terms of this Sublease. Sublandlord and Subtenant each agree to observe and be bound by each and every covenant, condition and provision of the Prime Lease insofar as any such covenant, condition or provision affects the Premises or Subtenant's use thereof. Subtenant acknowledges that it has reviewed and is familiar with the Prime Lease. In confirmation of the subordination provided for in this paragraph, Subtenant shall, within ten (10) days after Sublandlord's reasonable request, promptly execute any requested or appropriate certificate or other document. b. To the extent that Sublandlord is entitled under the Prime Lease to any abatement of rent as a result of damage or casualty to the Premises, then Subtenant shall have the right to an abatement of rent hereunder in an amount equal to the total rent required hereunder multiplied by a fraction equal to the number of square feet in the Premises rendered unusable divided by the number of square feet in the Premises rendered unusable. c. Subtenant hereby assumes and agrees to perform faithfully and be bound by, with respect to the Premises, all of Sublandlord’s obligations, covenants, agreements and liabilities under the Prime Lease and all terms, conditions, provisions and restrictions contained in the Prime Lease except the following provisions of the Prime Lease: (i) (ii) (iii) Section 2.6 – Extension Options; Section 2.7 – Right of First Offer; and Section 3.1 – Annual Fixed Rent. 4 100565089.1 The reference in this Sublease to any particular section or article of the Prime Lease shall not in any way be deemed or construed to derogate from the general incorporation by reference of the entire Prime Lease (except as aforesaid) into this Sublease. d. Subtenant shall not do anything which could result in a default under the Prime Lease or permit the Prime Lease to be cancelled or terminated. e. It is expressly understood and agreed that Sublandlord does not assume and shall not have any of the obligations or liabilities of Landlord under the Prime Lease and that Sublandlord is not making the representations or warranties, if any, made by Landlord in the Prime Lease. With respect to work, services, repairs and restoration or the performance of other obligations required of Landlord under the Prime Lease, Sublandlord’s sole obligation with respect thereto shall be to request the same, upon written request from Subtenant, and to use reasonable efforts to obtain the same from Landlord, which efforts shall not require initiating any litigation. Sublandlord shall not be liable in damages, nor shall rent abate hereunder, for or on account of any failure by Landlord to perform the obligations and duties imposed on it under the Prime Lease. f. Whenever Subtenant desires to do any act or thing that requires the consent or approval of the Landlord pursuant to the Prime Lease, (i) Subtenant shall not do such act or thing without first having obtained the consent or approval of both Landlord and Sublandlord (and Sublandlord’s right to withhold consent or approval shall be independent of Landlord’s right), and (ii) in no event shall Sublandlord be required to give its consent or approval prior to Landlord doing so, unless required by Landlord. 12. Signage. Sublandlord, at its sole cost and expense, shall request that Landlord provide to Subtenant Building standard signage on all tenant directories at the Building as well as at the entrance to the Premises. All signage to be installed at the Premises shall be subject to the approval of Landlord and subject to the terms of the Prime Lease. 13. Building Rules and Regulations. Subtenant shall comply with all rules and regulations of the Building. 14. Alterations. Notwithstanding anything to the contrary contained in the Prime Lease, Subtenant shall not make any improvements, alterations or changes to the Premises whatsoever, including without limitation, structural or non-structural changes, without the prior written consent of Sublandlord and Landlord and in accordance with the terms of the Prime Lease. Subtenant will not suffer or permit to attach nor will it do any act or make any contract that may create the foundation of any mechanic’s or other lien for work, labor, services or materials, or otherwise, and whenever any such lien shall be filed or shall attach Subtenant will, within ten (10) days thereafter, secure a cancellation thereof by paying the same or in such other manner prescribed by law. 15. Insurance. Subtenant shall maintain insurance of the kinds and in the amounts required to be maintained by Sublandlord under the Prime Lease and in accordance with all other requirements therein. All policies of liability insurance shall name as additional insureds the Landlord and Sublandlord and their respective officers, directors or partners, as the case may be, and the respective agents and employees of each of them. Subtenant shall deliver certificates evidencing such insurance with delivery of the first month’s rent. Before taking occupancy of the Premises, Subtenant shall provide Sublandlord with proof of such insurance. 16. Assignment and Further Sublease. Provided that both on the date on which Subtenant notifies Sublandlord of its desire to enter into an assignment and on the date on which such assignment is to take effect, Subtenant is not in default of any of its obligations hereunder, during the term of the Sublease, Subtenant shall have the right to sub-sublease all or portion of the Premises subject to (i) Sublandlord written consent, which shall not be 5 100565089.1 unreasonably withheld or delayed, (ii) Landlord’s written consent, which shall be subject to and in accordance with the Prime Lease (including the right to terminate the Lease, and, accordingly the Sublease) and (iii) payment of any fee which is required by the Landlord. Subtenant will remain liable for all obligations under the Sublease. Assignment rights shall be pursuant the Prime Lease. Subtenant shall provide such financial and other information regarding the proposed assignee as requested by Sublandlord and/or Landlord. In the event that Sublandlord and Landlord consent to any assignment or sublease of the Premises, as a condition of such consent, Subtenant shall pay to Sublandlord fifty percent (50%) of any rent, sum or other consideration to be paid or given in connection with any assignment or sublet (after first deducting Subtenant’s reasonable actual costs to sub-sublet the Premises), either initially or over time, in excess of Base Rent and Additional Rent hereunder, as if such amount were originally called for by the terms of this Sublease as Additional Rent. Subtenant shall furnish Sublandlord with a sworn statement, certified by an independent certified public accountant, setting forth in detail the computation of any such excess rent (which computation shall be based upon generally accepted accounting principles, including an amortization of Subtenant’s actual costs in such assignment or sublease (e.g., the cost of commissions, improvement allowance and any other reasonable actual out-of-pocket transaction cost)), and Sublandlord, or its representatives, shall have access to the books, records and papers of Subtenant in relation thereto, and to make copies thereof. 17. Access. Subtenant shall be afforded access to the Premises 24 hours a day, 7 days a week, and 365 days a year, and on all dates and at all times permitted by applicable government rules and regulations, and in accordance with the terms of the Prime Lease, excluding emergency events, which may cause the Building to limit access to tenants. Subtenant shall have 24-hour access to the loading dock and freight elevator at no additional cost. 18. Surrender. Upon expiration of the Term or other termination of this Sublease, Subtenant shall quit and surrender to Sublandlord the Premises and remove all of its furniture, furnishings, personal property and equipment in order to leave the Premises, broom clean and in as good order, repair and condition as they were on the date the Term of this Sublease commenced, ordinary wear and tear excepted. The obligations of Subtenant to perform this covenant shall survive the expiration or other termination of this Sublease. 19. Default; Remedies. a. Sublandlord reserves the right to terminate this Sublease and Subtenant’s occupancy of the Premises in the event that (i) Subtenant fails to make any Base Rent payment, Additional Rent or any other monetary amount due under this Sublease within five (5) business days of its due date, or (ii) Subtenant fails to observe and perform any of its obligations under this Sublease within ten business (10) days after written notice thereof from Sublandlord, except to the extent such default cannot be cured within said ten business (10) day period, in which event Subtenant shall have such additional time as may be necessary to cure such default so long as Subtenant has commenced cure within such ten business (10) day period and is diligently and continuously pursuing the remedies necessary to cure such default within thirty (30) days after notice thereof. The acceptance of any late payments of Base Rent shall not be deemed a waiver of Sublandlord’s rights under this section. In the event it becomes necessary for Sublandlord to enforce its rights against Subtenant by legal action Subtenant shall pay all of Sublandlord’s reasonable legal costs and expenses in connection therewith including reasonable legal fees provided that Sublandlord is the prevailing party in such action. b. In case of any such termination, Subtenant shall pay to and indemnify Sublandlord each month against all loss of rent and all costs, expenses, or obligations which Sublandlord may incur by reason of any such termination between the time of termination and the end of the Term, or, at such election of Sublandlord, exercised at the time of the termination or at any time thereafter, Subtenant shall pay to Sublandlord as damages, in a lump sum, the 6 100565089.1 then present value of the aggregate amount of rent and other payments provided herein to be paid by Subtenant to Sublandlord through the time when the Term of this Sublease would have expired but for the default by Subtenant. It is understood and agreed that at the time of the termination or at any time thereafter that Subtenant shall be liable for any expenses incurred by Sublandlord in connection with obtaining possession of the Premises, with removing from the Premises property of Subtenant and persons claiming under Subtenant (including warehouse charges), with putting the Premises into condition for delivery to Landlord or reletting and with any reletting, including without limitation, attorneys’ fees and brokers’ fees, and that any monies collected from any reletting shall be applied first to the foregoing expenses and then to the payment of rent and all other payments due from Subtenant to Sublandlord. 7 100565089.1 20. Indemnification. Subtenant shall indemnify and hold harmless Sublandlord from and against any and all losses, claims, damages, liabilities, actions, costs and expenses (including reasonable attorneys’ fees) incurred by Sublandlord arising out of or related to this Sublease or Subtenant’s use and occupancy of the Premises, unless caused by the intentional acts or gross negligence of Sublandlord. This indemnification shall survive termination of this Sublease. 21. Notices. Any notice required or permitted to be given hereunder shall be in writing and may be given by certified mail, return receipt requested, personal delivery, Federal Express or other delivery service. If notice is given by certified mail, return receipt requested, notice shall be deemed given three (3) days after the notice is deposited with the U.S. Mail, postage prepaid, addressed to Subtenant or to Sublandlord at the address set forth below. If notice is given by personal delivery, Federal Express or other delivery service, notice shall be deemed given on the date the notice is actually received by Sublandlord or Subtenant. Either party may by notice to the other specify a different address for notice purposes. If to Sublandlord: Agios Pharmaceuticals, Inc. 88 Sidney Street Cambridge, MA 02139 With a copy to: Eckert, Seamans, Cherin & Mellott, LLC Two International Place, 16 Floor Boston, MA 02110 Attn: Stuart A. Offner, Esq. th If to Subtenant: Prime Medicine, Inc. 21 Erie Street Cambridge, MA 02139 Attn: Keith Gottesdiener If Sublandlord receives any notice from Landlord which affects Subtenant or the Premises, Sublandlord shall provide Subtenant with a copy thereof. 22. Hold Over. If Subtenant holds over after the expiration of the Term or earlier termination thereof, such tenancy shall be a tenancy at sufferance, and shall not constitute a renewal hereof or an extension for any further term, and in such case Base Rent shall be payable at a monthly rate equal to (a) 150% of Base Rent and Additional Rent applicable during the last rental period of the Term for any holding over during the first ninety (90) days following expiration of the Term or earlier termination thereof, and (b) 175% of Base Rent and Additional Rent applicable during the last rental period of the Term for any holding over subsequent to the holding over period of subsection 22(a). Such tenancy shall be subject to every other applicable term, covenant and agreement contained herein. For purposes of this paragraph holding over shall include (i) Subtenant’s remaining in the Premises after the expiration or earlier termination of the Term, and/or (ii) failing to deliver the Premises in the condition required in this Sublease or the Prime Lease. Nothing contained in this paragraph shall be construed as consent by Sublandlord to any holding over by Subtenant, and Sublandlord expressly reserves the right to require Subtenant to surrender possession of the Premises to Landlord as provided in the Sublease and Prime Lease upon the expiration or other termination of this Sublease. If Subtenant holds over without Sublandlord’s express written consent, and tenders payment of rent for any period beyond the expiration of the Term by way of check (whether directly to Sublandlord, its agents, or to a lock box) or wire transfer, Subtenant acknowledges and agrees that the cashing of such check or acceptance of such wire shall be considered inadvertent and not be construed as creating a month-to-month tenancy. The provisions of this paragraph shall not be deemed to limit or constitute a waiver of any other rights or remedies of Sublandlord provided herein or at law. If Subtenant fails to surrender the Premises upon the termination or expiration of this Sublease, in addition to any other liabilities to Sublandlord accruing therefrom, 8 100565089.1 Subtenant shall protect, defend, indemnify and hold Sublandlord harmless from all loss, costs (including reasonable attorneys' fees) and liability resulting from such failure, including, without limiting the generality of the foregoing, any claims made by Landlord or any succeeding tenant founded upon such failure to surrender and any lost profits to Sublandlord resulting therefrom. 23. Brokerage Commissions. Each party hereby represents and warrants to the other that it has had no dealings with any real estate broker or agent in connection with this Sublease, excepting only CBRE, which shall be paid in accordance with an existing agreement with Sublandlord, and that it knows of no other real estate broker or agent who is or might be entitled to a commission in connection with this Sublease. Each party agrees to protect, defend, indemnify and hold the other harmless from and against any and all claims inconsistent with the foregoing representations and warranties for any brokerage, finder’s or similar fee or commission in connection with this Sublease, if such claims are based on or relate to any act of the indemnifying party which is contrary to the foregoing representations and warranties. 24. Waiver of Jury Trial. THE PARTIES HEREBY WAIVE THEIR RESPECTIVE RIGHTS TO TRIAL BY JURY IN ANY ACTION OR PROCEEDING INVOLVING THE PREMISES, BUILDING OR ARISING OUT OF THIS SUBLEASE OR THE PRIME LEASE. 25. Modification. This Sublease may only be modified by written agreement signed by Sublandlord and Subtenant. 26. Counterparts. This Sublease may be executed in counterparts, each of which shall be an original and all of which, when assembled, shall constitute but one document. 27. of Massachusetts. Governing Law. The terms and provisions of this Sublease shall be governed by the laws of the Commonwealth 28. Consent. It is expressly understood and agreed that this Sublease, and the parties’ rights and obligations hereunder, are contingent upon the Landlord’s written consent of this Sublease. If Landlord’s consent shall not have been obtained within thirty (30) days after the date of this Sublease, Sublandlord and Subtenant shall each have the right to terminate this Sublease by providing the other with its written election to do so before (but not after) Landlord’s consent is obtained (the “Termination Notice”). In the event of such a termination, neither party shall have any further rights or obligations hereunder. 29. Emergency Generator / Roof Rights. The emergency generator usage is at capacity. Subtenant shall have the right, upon approval by the Sublandlord and Landlord, to invest in and implement additional capacity (if feasible) and/or install a generator at Tenant’s sole cost and expense. 30. Shared Services. Shared services supporting the Premises include the following: compressed air, lab vacuum, nitrogen, glass wash and autoclave. 31. Safety Permits. Subtenant shall be responsible for the acquisition and maintenance of the MWRA Permit. [SIGNATURES APPEAR ON FOLLOWING PAGE.] 9 100565089.1  IN WITNESS WHEREOF, the Sublandlord and Subtenant have each executed this Sublease effective as of the date first above written. SUBLANDLORD: Agios Pharmaceuticals, Inc., a Delaware corporation By: /s/Jonathan Biller Name: Jonathan Biller Title: Chief Financial Officer, Head of Legal and Corporate Affairs SUBTENANT: Prime Medicine, Inc., a Delaware corporation By: /s/ Keith Gottesdiener Name: Keith Gottesdiener Title: Chief Executive Officer Landlord hereby consents to this Sublease: LANDLORD: Up 64 Sidney Street, LLC, a Delaware limited liability company By: Name: Title: 10 100565089.1 Exhibit “A” Prime Lease 11 100565089.1 Exhibit “B” Existing Furniture and Equipment 12 100565089.1 Entity Agios Securities Corporation Agios Limited Agios International Sarl (GmbH) Agios Netherlands B.V. Agios Germany GmbH Agios Italy S.R.L. Agios France SARL Exhibit 21.1 SUBSIDIARIES State or other Jurisdiction of Incorporation or Organization Massachusetts Bermuda Switzerland The Netherlands Germany Italy France CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-253498, 333-236523, 333-229669, 333-223031, 333-216106, 333-209755, 333-201796, 333-193802, and 333-190101) and Form S-3 (No. 333-237930) of Agios Pharmaceuticals, Inc. of our report dated February 24, 2022 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K. Exhibit 23.1 /s/ PricewaterhouseCoopers LLP Boston, Massachusetts February 24, 2022 I, Jacqualyn Fouse, certify that: 1. I have reviewed this Annual Report on Form 10-K of Agios Pharmaceuticals, Inc.; CERTIFICATION Exhibit 31.1 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d- 15(f)) for the registrant and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; (b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, 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; (c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and (d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and 5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions): (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting. February 24, 2022 /s/ Jacqualyn A. Fouse Jacqualyn A. Fouse, Ph.D Chief Executive Officer (principal executive officer) Exhibit 31.2 I, Jonathan Biller, certify that: 1. I have reviewed this Annual Report on Form 10-K of Agios Pharmaceuticals, Inc.; CERTIFICATION 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d- 15(f)) for the registrant and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; (b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, 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; (c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and (d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and 5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions): (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting. February 24, 2022 /s/ Jonathan Biller Jonathan Biller Chief Financial Officer and Head of Corporate Affairs (principal financial officer) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 Exhibit 32.1 In connection with this Annual Report on Form 10-K of Agios Pharmaceuticals, Inc. (the “Company”) for the year ended December 31, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Jacqualyn Fouse, Chief Executive Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, that, to her knowledge on the date hereof: (1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. February 24, 2022 /s/ Jacqualyn A. Fouse Jacqualyn A. Fouse, Ph.D. Chief Executive Officer (principal executive officer) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 Exhibit 32.2 In connection with this Annual Report on Form 10-K of Agios Pharmaceuticals, Inc. (the “Company”) for the year ended December 31, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Jonathan Biller, Chief Financial Officer and Head of Legal and Corporate Affairs of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, that, to his knowledge on the date hereof: (1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. February 24, 2022 /s/ Jonathan Biller Jonathan Biller Chief Financial Officer and Head of Corporate Affairs (principal financial officer) 

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