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Related Party - Gilead Sciences, Inc. | 9 Months Ended
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Sep. 30, 2023
Related Party Transactions [Abstract] |
Related Party - Gilead Sciences, Inc. | Related party - Gilead Sciences, Inc. In 2020, we and Gilead Sciences, Inc. (Gilead) entered into an Option, License and Collaboration Agreement (the Gilead Collaboration Agreement), Common Stock Purchase Agreement (the Stock Purchase Agreement), and Investor Rights Agreement (Investor Rights Agreement). In 2021, we amended the Gilead Collaboration Agreement (the First Gilead Collaboration Agreement Amendment) and the Stock Purchase Agreement (the First Stock Purchase Agreement Amendment), and in 2022 we amended the Investor Rights Agreement (Amended Investor Rights Agreement). In the second quarter of 2023, we expanded our collaboration to include research-stage inflammation programs (the Second Gilead Collaboration Agreement Amendment) and further amended the Stock Purchase Agreement (the Second Stock Purchase Agreement Amendment). We refer to these agreements collectively as the Gilead Agreements. Stock Purchase Agreement and Investor Rights Agreement In 2020, under the Stock Purchase Agreement, Gilead purchased 6.0 million shares of our common stock for a total cost of $200 million, of which $91 million was allocated to the revenue related performance obligations created by the Gilead Collaboration Agreement (See Note 5, Revenues for more information). In 2021, under the First Stock Purchase Agreement Amendment, Gilead purchased 5.7 million shares of our common stock for a total cost of $220 million. In June 2023, under the Second Stock Purchase Agreement Amendment, Gilead purchased 1.0 million shares of our common stock for a total cost of $20 million. Gilead has the right, at its option until July 2025, to purchase up to a maximum of 35% of the Company’s then-outstanding voting common stock, at a purchase price equal to the greater of a 20% premium to market (based on a trailing five-day average closing price at option exercise) or the $33.54 initial purchase price. Based on the value of our common stock at each contract closing, the right to purchase additional shares had no value. Under the Investor Rights Agreement, Gilead has the right, which they have exercised, to designate two members of our Board of Directors. This agreement also included a three-year standstill and a two-year lockup, provided Gilead with registration rights commencing at the end of the lockup period and provides Gilead with pro rata participation rights in certain future financings. In October 2022, we registered Gilead’s shares and entered into the Amended Investor Rights Agreement, primarily to extend the two-year lockup period to three-years which expired on July 13, 2023. As of September 30, 2023, Gilead held approximately 19.8% of the Company’s outstanding common stock arising from purchases in our May 2020 public offering and purchases under the Stock Purchase Agreement and the First and Second Amended Stock Purchase Agreements. Collaboration Agreements In 2020, we entered into the Gilead Collaboration Agreement, which gave Gilead an exclusive license to develop and commercialize zimberelimab (the anti PD-1 program) in certain markets and time-limited options to acquire exclusive licenses to develop and commercialize any of our then-current and future clinical programs arising during the 10-year collaboration term, contingent upon $100 million option continuation payments payable on each of the second, fourth, sixth and eighth anniversaries of the agreement. Upon closing of the transaction in July 2020, Gilead made an upfront payment of $175 million. In 2021, we entered into the First Gilead Collaboration Agreement Amendment pursuant to which Gilead exercised its option to three programs—providing Gilead with exclusive licenses to develop and commercialize domvanalimab and AB308 (collectively, the anti-TIGIT program), etrumadenant (the adenosine receptor antagonist program) and quemliclustat (the CD73 program), in certain markets—for a total payment of $725 million that was received in 2022. The amendment also (i) provided for a slight reduction in the royalties for these three programs, such that Gilead will pay us tiered royalties as a percentage of revenues ranging from the mid-teens to the low twenties; and (ii) removed the $100 million option continuation payment that was otherwise due on the second anniversary of the Gilead Collaboration Agreement. Gilead's option, on a program-by-program basis, will expire after a prescribed period following the achievement of a clinical development milestone in such program and our delivery to Gilead of the requisite data package. Gilead may exercise its option to any program at any time prior to expiration of the option and will pay Arcus an option fee of $150 million per program. With respect to domvanalimab, we are also eligible to receive up to $500 million in potential U.S. regulatory approval milestones. For each program that Gilead opts in to, both companies will co-develop and equally share global development costs, subject to certain opt-out rights that we have, and caps on our spending and related subsequent adjustments. For each program, provided we have not exercised our opt-out rights, we have the option to co-promote in the United States with equal sharing of related profits and losses. Gilead has the right to exclusively commercialize outside of the U.S., subject to the rights of our existing partners in any territories and will pay us tiered royalties as a percentage of revenues ranging from the high teens to the low twenties. Under the First Gilead Collaboration Agreement Amendment, Gilead also has option rights to two immuno-oncology research programs for which we will lead discovery and early development activities. With respect to these two research programs, Gilead has the right to exercise its option, on a program-by-program basis, either (i) upon our completion of certain IND-enabling activities for an option payment of $60 million or (ii) following the achievement of a clinical development milestone for an option payment of $150 million. These research programs were not determined to be performance obligations at contract inception, due to the very early stages of the programs. In May 2023, we entered into the Second Gilead Collaboration Agreement Amendment pursuant to which we expanded our collaboration to provide Gilead with options to license up to four jointly selected research-stage programs that target inflammatory diseases for which we will lead discovery and early development activities. We will receive an upfront payment of $17.5 million for each initiated program and Gilead will have an option to license each program at two separate, prespecified time points. For the first two research programs, Gilead has the right to exercise its option, on a program-by-program basis, either (i) upon our completion of certain IND-enabling activities for an option payment of $45 million or (ii) following the achievement of a clinical development milestone for an option payment of $150 million. If Gilead exercises its option at the earlier time point for the first two programs, we would be eligible to receive up to $375 million in regulatory and commercial milestone payments as well as tiered royalties for each optioned program. For any other program option exercise by Gilead, the parties would have rights to co-develop and share global development costs and to co-commercialize and share profits in the US for that program. We received a total upfront payment of $35 million for an initial two research programs in June 2023. As of September 30, 2023, Gilead has licenses to domvanalimab, AB308, etrumadenant, quemliclustat and zimberelimab. For the three months ended September 30, 2023 and 2022, we recognized revenue under the Gilead Agreements of $28 million and $31 million, respectively, and net reimbursements from Gilead recognized as reductions in research and development (R&D) expense of $22 million and $27 million, respectively. For the nine months ended September 30, 2023 and 2022, we recognized revenue under the Gilead Agreements of $82 million and $73 million, respectively, and net reimbursements from Gilead recognized as reductions in R&D expense of $89 million and $93 million, respectively. For a more detailed discussion on revenues recognized under the Gilead Agreements, see Note 5, Revenues.

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