Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) today announced financial results for the fourth quarter and full year 2020 and provided a business update.

"In 2020, the Regeneron team rapidly mobilized our significant scientific, development, manufacturing, and operational capabilities to bring our monoclonal antibody cocktail, REGEN-COV, to patients with COVID-19 through an Emergency Use Authorization," said Leonard S. Schleifer, M.D., Ph.D., President and Chief Executive Officer of Regeneron. "In 2021, in addition to our ongoing work on COVID-19, we expect further diversified growth driven by continued EYLEA momentum, expanded approvals and increased market penetration for Dupixent, and new launches for Libtayo in oncology. We anticipate U.S. regulatory action for Libtayo in both non-small cell lung cancer and basal cell carcinoma within the next month – and anticipate additional readouts later this year from across our oncology pipeline, including the bispecific platform."

Financial Highlights

"In 2020, Regeneron delivered double-digit top- and bottom-line growth and significant shareholder value despite the unprecedented circumstances of a global pandemic," said Robert E. Landry, Executive Vice President, Finance and Chief Financial Officer of Regeneron. "As we look ahead into 2021 and beyond, our business momentum and strong balance sheet give us confidence as we invest in R&D for long-term growth and execute on our capital allocation priorities."

Business Highlights

Key Pipeline Progress
Regeneron has approximately 30 product candidates in clinical development, including five marketed products for which it is investigating additional indications. Updates from the clinical pipeline include:

Dupixent^® (dupilumab)

• In November 2020, the European Commission (EC) extended the marketing authorization in the European Union (EU) to include children 6 to 11 years of age with severe atopic dermatitis who are candidates for systemic therapy.
• In October 2020, the Company and Sanofi announced that a Phase 3 trial met its primary and all key secondary endpoints in children aged 6 to 11 years with uncontrolled moderate-to-severe asthma. A supplemental Biologics License Application (sBLA) was subsequently submitted and a submission in the EU is planned by the end of the first quarter of 2021.
• Phase 3 studies in chronic inducible urticaria, chronic sinusitis without nasal polyposis, and allergic fungal rhinosinusitis were initiated.

REGEN-COV™ (casirivimab and imdevimab), a dual antibody cocktail to SARS-CoV-2 virus

• In November 2020, REGEN-COV received Emergency Use Authorization (EUA) from the U.S. Food and Drug Administration (FDA). REGEN-COV is authorized for the treatment of mild to moderate COVID-19 in certain patients at high risk for progressing to severe COVID-19 and/or hospitalization.
• In January 2021, the Company announced a second agreement with the U.S. government to manufacture and deliver REGEN-COV. The U.S. government has agreed to acquire up to 1.25 million additional doses at the lowest treatment dose authorized or approved by the FDA for the indication authorized under the EUA, resulting in payments to the Company of up to $2.625 billion in the aggregate. The U.S. government is obligated to purchase all filled and finished doses of drug product delivered by June 30, 2021, and may accept doses through September 30, 2021 at its discretion. A number of factors may impact available filled and finished supply by June 30, 2021, including manufacturing considerations and authorized dose levels. The agreement is in addition to the July 2020 agreement with the U.S. government for approximately 300,000 doses.
• In February 2021, the European Medicines Agency (EMA) announced it had commenced a Rolling Review of data for the casirivimab and imdevimab antibody cocktail. Data on the safety, tolerability, and efficacy of the antibody cocktail will be shared with the EMA as they become available in the coming months.
• In October 2020, the Company announced additional positive results from an ongoing Phase 2/3 seamless trial in the COVID-19 outpatient setting showing that REGEN-COV significantly reduced viral load and COVID-19 medical visits (hospitalizations, emergency room, urgent care visits, and/or physician office/telemedicine visits). Initial clinical data from this trial were published in the New England Journal of Medicine (NEJM) in December 2020.
• A Phase 2 dose-ranging treatment study in non-hospitalized patients with COVID-19 was initiated and a lower 1,200 mg dose is being evaluated in the ongoing outpatient trial.
• In December 2020, the Company announced initial encouraging data from an ongoing Phase 1/2/3 trial in seronegative hospitalized COVID-19 patients requiring low-flow oxygen. The Phase 3 program in hospitalized patients will continue based on passing a futility analysis evaluating the risk of death or receiving mechanical ventilation and demonstrating positive reductions in viral load. In October 2020, the Independent Data Monitoring Committee (IDMC) for this trial recommended that, based on a potential safety signal and an unfavorable risk/benefit profile at this time, further enrollment of patients requiring high-flow oxygen or mechanical ventilation be placed on hold.
• The United Kingdom-based RECOVERY trial continues to evaluate REGEN-COV in hospitalized patients and has enrolled more than 6,000 patients in the cohort randomizing patients 1:1 to receive REGEN-COV or placebo.
• In January 2021, the Company announced positive initial results from an ongoing Phase 3 trial evaluating REGEN-COV used as a passive vaccine for the prevention of COVID-19 in people at high risk of infection (due to household exposure to a COVID-19 patient). An exploratory analysis was conducted on the first approximately 400 evaluable individuals enrolled in the trial, who were randomized to receive passive vaccination with REGEN-COV (1,200 mg via subcutaneous injections) or placebo.
• In January 2021, the Company announced that preclinical studies showed that the REGEN-COV antibody cocktail retains its potent neutralizing ability against circulating SARS-CoV-2 variants identified in the United Kingdom, South Africa, and Brazil. Both antibodies in the cocktail retained their potency against the UK variant (B.1.1.7); imdevimab retained its potency against the South African variant (B.1.351), while casirivimab potency was reduced but still comparable to that of other single antibodies in development against the original virus. The REGEN-COV antibody cocktail was prospectively designed so that if variants arose affecting one component, the other component could compensate and still allow for potent neutralizing activity. In fact, as reported in Science in June 2020, Regeneron scientists predicted the key mutation that has since appeared in the South African and Brazil variants, and further showed that this mutation would lower potency of the casirivimab component, but be compensated for by the imdevimab component.

Libtayo^® (cemiplimab)

• The FDA accepted for priority review, with a target action date of February 28, 2021, the sBLA for Libtayo as monotherapy to treat patients with first-line locally advanced or metastatic non-small cell lung cancer (NSCLC) with ?50% PD-L1 expression. A regulatory application for Libtayo as monotherapy in first-line NSCLC was also submitted in the EU.
• The FDA accepted for priority review, with a target action date of March 3, 2021, the sBLA for Libtayo for the treatment of patients with locally advanced or metastatic basal cell carcinoma (BCC). A regulatory application for Libtayo in advanced BCC was also submitted in the EU.

Inmazeb™ (atoltivimab, maftivimab, and odesivimab-ebgn)

• In October 2020, the FDA approved Inmazeb (REGN-EB3) for the treatment of infection caused by Zaire ebolavirus in adult and pediatric patients, including newborns of mothers who have tested positive for the infection.

REGN5458, a bispecific antibody targeting BCMA and CD3

• In December 2020, the Company announced updated data from the Phase 1 portion of a Phase 1/2 trial in patients with relapsed or refractory (R/R) multiple myeloma. The results continued to show deep and durable responses in patients with heavily-pretreated multiple myeloma and were shared in an oral presentation at the virtual 2020 American Society of Hematology (ASH) Annual Meeting.

Odronextamab, a CD20xCD3 bispecific antibody

• In December 2020, updated results from the Phase 1 trial in R/R follicular lymphoma, diffuse large B-cell lymphoma, and other B-cell non-Hodgkin lymphomas were shared in an oral presentation at ASH and included patient follow-up data of up to 3 years.
• In December 2020, the Company announced it was pausing new enrollment of patients with B-cell non-Hodgkin lymphomas (B-NHL) in its trials in compliance with an FDA partial clinical hold. The FDA requested that the Company amend the trial protocols in order to further reduce the incidence of ?Grade 3 cytokine release syndrome (CRS) during step-up dosing. The Company is working with the FDA to amend the protocol, with the goal of resuming patient enrollment within the first half of 2021.

Additional Bispecific Antibodies

• In addition to REGN5458 and odronextamab, the Company has advanced two CD3 bispecifics into clinical trials including MUC16xCD3 (REGN4018), which is being studied in ovarian cancer.
• Three costimulatory CD28 bispecifics are now in clinical trials targeting prostate cancer, ovarian cancer, and other solid tumors.
• Also in clinical development is the first of a third class of bispecifics, METxMET (REGN5093), in non-small cell lung cancer driven by MET mutations and/or amplifications.

Itepekimab, an antibody to IL-33

• The Company and Sanofi have initiated a Phase 3 program in chronic obstructive pulmonary disease (COPD).

REGN5713-5714-5715, a multi-antibody therapy to Betv1

• A Phase 3 study in birch allergy was recently initiated. REGN5713-5714-5715 is designed to treat allergic inflammatory conditions caused by the allergen Betv1, which is the main allergen responsible for birch pollen allergies. Birch pollen allergy is one of the most common causes of seasonal allergies that occur in the spring, and is also believed to trigger "oral allergy syndrome" food reactions to related allergens found in fruits and nuts such as apples, pears, and cherries.

Select 2021 Milestones

Fourth Quarter and Full Year 2020 Financial Results

Effective January 1, 2020, Regeneron implemented changes in the presentation of its financial statements related to certain reimbursements and other payments for products developed and commercialized with collaborators. The Company made these changes in presentation to better reflect the nature of the Company's costs incurred and revenues earned pursuant to arrangements with collaborators and to enhance the comparability of Regeneron's financial statements with industry peers. The change in presentation has been applied retrospectively. See note (4) below for further information.

Revenues

Total revenues increased by 30% to $2.423 billion in the fourth quarter of 2020, compared to $1.864 billion in the fourth quarter of 2019. Full year 2020 total revenues increased 30% to $8.497 billion, compared to $6.558 billion for the full year 2019.

EYLEA^® net product sales in the United States increased to $1.343 billion in the fourth quarter of 2020, compared to $1.222 billion in the fourth quarter of 2019. Full year 2020 EYLEA net product sales in the United States increased to $4.947 billion, compared to $4.644 billion for the full year 2019. Overall distributor inventory levels for EYLEA in the United States remained within the Company's one-to-two-week targeted range.

Net product sales of REGEN-COV were $146 million in the fourth quarter of 2020 and $186 million for the full year of 2020.

Total revenues also include Sanofi and Bayer collaboration revenues⁽²⁾ of $678 million in the fourth quarter and $2.373 billion for the full year 2020, compared to $482 million in the fourth quarter and $1.549 billion for the full year 2019. Sanofi collaboration revenue increased primarily due to the Company's share of profits from commercialization of antibodies, which were $230 million and $785 million in the fourth quarter and full year 2020, respectively, compared to $104 million and $209 million in the fourth quarter and full year 2019, respectively. The change in the Company's share of profits from commercialization of antibodies was primarily driven by higher Dupixent profits. In addition, in the third quarter of 2020, the Company earned the first $50 million sales-based milestone from Sanofi, upon annual sales of antibodies outside the United States exceeding $1.0 billion on a rolling twelve-month basis.

Refer to Table 4 for a summary of collaboration revenue.

Other revenues in the fourth quarter and full year of 2020, compared to the same periods in the prior year, increased primarily due to recognition of revenue of $43 million and $187 million, respectively, in connection with the Company's agreement with the Biomedical Advanced Research Development Authority (BARDA) related to funding of certain development activities for antibodies related to the treatment of COVID-19. Other revenues for the full year of 2020 also increased due to recognition of revenue in connection with the Company's agreement with BARDA related to funding of certain Inmazeb development activities and Sanofi's reimbursement for manufacturing commercial supplies of Praluent.

Operating Expenses

• The higher GAAP and non-GAAP R&D expenses in the fourth quarter and full year 2020, compared to the same periods in the prior year, were primarily due to additional costs incurred in connection with COVID-19 related development activities. The higher GAAP and non-GAAP R&D expenses for full year 2020 were also due to additional costs incurred in connection with the Company's earlier-stage pipeline, higher headcount and headcount-related costs, and an increase in clinical manufacturing activities. GAAP R&D expenses for full year 2020 included $85 million of up-front payments in connection with the Intellia collaboration agreement, and GAAP R&D expenses for full year 2019 included a $400 million up-front payment in connection with the Alnylam collaboration agreement.
• The change in GAAP and non-GAAP SG&A expenses in the fourth quarter and full year 2020, compared to the same periods in the prior year, was primarily due to an increase in commercialization-related costs for EYLEA and Libtayo, higher headcount-related costs, and, effective April 1, 2020, no longer receiving Praluent-related cost reimbursements from Sanofi for Regeneron-incurred expenses. GAAP SG&A expenses for the fourth quarter and full year 2020 were also positively impacted by a reversal of $121 million in accruals for litigation-related loss contingencies in the fourth quarter of 2020 as a result of the October 2020 ruling by the Technical Board of Appeal of the European Patent Office and its impact on certain patent infringement actions in Europe relating to Praluent. In addition, in the fourth quarter of 2019, the Company recorded a $35 million GAAP SG&A charge related to employee separation costs, as the Company eliminated certain commercialization activities and related headcount in connection with the restructuring of the antibody agreement with Sanofi.
• The increase in COGS in the fourth quarter and full year 2020, compared to the same periods in the prior year, was primarily due to the recognition of manufacturing costs in connection with the initiation of product sales of REGEN-COV (which commenced in the third quarter of 2020) and Praluent in the United States (which were recorded by Sanofi prior to April 1, 2020), as well as higher product sales of Libtayo and EYLEA in the United States. These increases were partly offset by lower period costs for the Company's Limerick commercial manufacturing facility and lower inventory write-downs and reserves.
• The increase in COCM in the fourth quarter and full year 2020, compared to the same periods in the prior year, was primarily due to the recognition of manufacturing costs associated with Dupixent and recognition of costs in connection with manufacturing ex-U.S. commercial supplies of Praluent for Sanofi. In addition, COCM increased for full year 2020 due to process validation costs in connection with manufacturing Inmazeb under our BARDA agreement.
• Other operating (income) expense, net, includes recognition of a portion of amounts previously deferred in connection with up-front and development milestone payments, as applicable, received in connection with the Company's collaborative arrangements. The increase in other operating income in the fourth quarter and full year 2020 was primarily due to the recognition of cumulative catch-up adjustments of $100 million, net, arising from an update to the estimate of the stage of completion for certain collaboration programs.

Other Financial Information

GAAP other income (expense), net, includes the recognition of net gains on equity securities of $60 million in the fourth quarter and $222 million for the full year 2020, compared to net gains of $189 million in the fourth quarter and $118 million for the full year 2019. In August 2020, the Company issued and sold $1.250 billion aggregate principal amount of 1.750% senior unsecured notes due 2030 and $750 million aggregate principal amount of 2.800% senior unsecured notes due 2050, for which the associated interest expense is included in GAAP and non-GAAP other income (expense), net.

GAAP income tax expense was $75 million and the effective tax rate was 6.2% in the fourth quarter of 2020, compared to $98 million and 11.0% in the fourth quarter of 2019. GAAP income tax expense was $297 million and the effective tax rate was 7.8% for the full year 2020, compared to $313 million and 12.9% for the full year 2019. The GAAP effective tax rate for the fourth quarter and full year 2020 was positively impacted, compared to the U.S. federal statutory rate, primarily by stock-based compensation, federal tax credits for research activities, and income earned in foreign jurisdictions with tax rates lower than the U.S. federal statutory rate. In the fourth quarter and full year 2020, the non-GAAP effective tax rate was 7.7% and 9.1%, respectively, compared to 10.6% and 14.6% in the fourth quarter and full year 2019, respectively.

GAAP net income per diluted share was $10.24 in the fourth quarter of 2020, compared to GAAP net income per diluted share of $6.93 in the fourth quarter of 2019. GAAP net income per diluted share was $30.52 for the full year 2020, compared to GAAP net income per diluted share of $18.46 for full year 2019. Non-GAAP net income per diluted share was $9.53 in the fourth quarter of 2020, compared to non-GAAP net income per diluted share of $7.50 in the fourth quarter of 2019. Non-GAAP net income per diluted share was $31.47 for the full year 2020, compared to non-GAAP net income per diluted share of $24.67 for the full year 2019. A reconciliation of the Company's GAAP to non-GAAP results is included in Table 3 of this press release.

During 2020, the Company repurchased 1.6 million shares of its common stock under the Company's share repurchase program. As of December 31, 2020, the Company had repurchased the entire $1.0 billion it was authorized to repurchase under the program.

In January 2021, the Company's board of directors authorized a new share repurchase program to repurchase up to $1.5 billion of the Company's common stock. Repurchases may be made from time to time at management's discretion through a variety of methods. The program has no time limit and can be discontinued at any time.

Net cash provided by operating activities in the fourth quarter of 2020 was $1.231 billion, compared to $787 million in the fourth quarter of 2019, resulting in $1.070 billion in free cash flow for the fourth quarter of 2020, compared to $648 million for the fourth quarter of 2019. Net cash provided by operating activities for the full year 2020 was $2.618 billion, compared to $2.430 billion in net cash provided by operating activities for the full year 2019, resulting in $2.004 billion in free cash flow for the full year 2020, compared to $2.000 billion for the full year 2019.

2021 Financial Guida