Subsequent Event

3 Months Ended

Mar. 31, 2024

Subsequent Events [Abstract]

Subsequent Event

Subsequent Event

In April 2024, we entered into an agreement and plan of merger (the “Alpine Merger Agreement”) to acquire all of the issued and outstanding shares of common stock of Alpine Immune Sciences, Inc. (“Alpine”), a publicly traded biotechnology company focused on discovering and developing innovative, protein-based immunotherapies, for approximately $4.9 billion in cash. Alpine’s lead molecule, povetacicept, is a highly potent and effective dual antagonist of BAFF (“B cell activating factor”) and APRIL (“a proliferation inducing ligand”). Through Phase 2 development, povetacicept has shown potential best-in-class efficacy in IgA nephropathy (“IgAN”), a serious, progressive, autoimmune disease of the kidney that can lead to end-stage-renal disease. The transaction is expected to close in the second quarter of 2024, subject to certain customary closing conditions, including the completion of a tender offer, the expiration of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act, and other conditions. We will account for the acquisition in the period that it closes. We intend to fund the acquisition with our cash and cash equivalents.