Regeneron Acquires Checkmate Pharmaceuticals

Sun Pharma Acquires Checkpoint Therapeutics

May 30, 2025

Biotechnology

Sun Pharmaceutical Industries Limited has completed the acquisition of Checkpoint Therapeutics, Inc., acquiring all outstanding shares for $4.10 per share in cash plus a contingent value right. The deal gives Sun Pharma ownership of UNLOXCYT (cosibelimab-ipdl), the FDA-approved anti-PD-L1 therapy for advanced cutaneous squamous cell carcinoma, and expands its oncology/onco-derm product portfolio.

Merck & Co., Inc. Acquires VelosBio Inc.

November 5, 2020

Biotechnology

Merck & Co., Inc. will acquire all outstanding shares of clinical-stage biopharmaceutical company VelosBio for $2.75 billion in cash. The acquisition adds VelosBio's lead investigational antibody-drug conjugate VLS-101 and ROR1-directed pipeline assets to Merck's oncology portfolio and is expected to close by the end of 2020, subject to customary conditions.

AbbVie to Acquire ImmunoGen for $10.1 Billion

November 30, 2023

Biotechnology

AbbVie has entered into a definitive agreement to acquire ImmunoGen for $31.26 per share in cash, valuing the company at approximately $10.1 billion. The deal gives AbbVie commercial rights to ELAHERE (mirvetuximab soravtansine-gynx) and ImmunoGen's ADC pipeline, expanding AbbVie's oncology capabilities; the transaction is expected to close in mid-2024 subject to shareholder and regulatory approvals.

AbbVie Acquires Capstan Therapeutics

August 19, 2025

Biotechnology

AbbVie has completed its acquisition of Capstan Therapeutics, adding Capstan's lead asset CPTX2309 — an in vivo targeted lipid nanoparticle (tLNP) anti‑CD19 CAR‑T candidate in Phase 1 for B cell‑mediated autoimmune diseases — and a proprietary tLNP RNA delivery platform. The deal strengthens AbbVie's immunology pipeline and expands its in vivo cell‑programming capabilities for RNA payload delivery.

Merck Acquires Acceleron Pharma for $11.5 Billion

September 30, 2021

Biotechnology

Merck has entered into a definitive agreement to acquire Acceleron Pharma Inc. for $180 per share in cash, representing an approximate total equity value of $11.5 billion. The acquisition brings Acceleron's late-stage sotatercept program (for pulmonary arterial hypertension) and its REBLOZYL portfolio into Merck's cardiovascular pipeline, subject to tender offer completion and customary regulatory approvals.

Vertex Pharmaceuticals Acquires Alpine Immune Sciences

April 10, 2024

Biotechnology

Vertex Pharmaceuticals will acquire Alpine Immune Sciences for $65 per share (approximately $4.9 billion) in cash. The acquisition adds Alpine’s lead candidate povetacicept (ALPN‑303) and protein-engineering/immunotherapy capabilities to Vertex’s pipeline and is expected to close in Q2 2024, subject to customary conditions.