Idera Pharmaceuticals Acquires Aceragen

Aceragen Acquires Arrevus to Expand Late-Stage Rare Disease Pipeline

October 28, 2021

Biotechnology

Aceragen, Inc. acquired clinical-stage biopharmaceutical company Arrevus, Inc., adding Arrevus' lead oral anti-infective candidate ARV-1801 (renamed ACG-721) and several preclinical programs to Aceragen's rare-disease pipeline. The deal brings additional clinical and regulatory capabilities to Aceragen and is expected to be accretive as the company advances registrational and Phase 2/3 studies in cystic fibrosis and other orphan indications.

Zevra Therapeutics Acquires Acer Therapeutics

November 20, 2023

Pharmaceuticals

Zevra Therapeutics completed the acquisition of Acer Therapeutics in a stock-and-contingent-value-rights transaction, bringing the FDA-approved product OLPRUVA and clinical-stage candidate EDSIVO into Zevra's portfolio and transitioning Zevra to a commercial-stage rare disease company. The deal included Zevra's purchase of Acer's senior secured debt and issuance of approximately 2.96 million shares plus CVRs (up to $76 million), and was followed by a registered direct offering to a healthcare-focused investment fund.

Merck & Co. (Merck Sharp & Dohme) Acquires Cidara Therapeutics

January 8, 2026

Biotechnology

Merck Sharp & Dohme LLC (Merck & Co., Inc.) completed its cash tender offer and follow-on merger to acquire Cidara Therapeutics, Inc. for $221.50 per share, valuing the deal at about $9.2 billion. The acquisition adds Cidara’s late-stage, long-acting, strain-agnostic influenza antiviral candidate CD388 to Merck’s respiratory pipeline.

Novo Nordisk to Acquire Akero Therapeutics for Up to $5.2 Billion

October 10, 2025

Pharmaceuticals

Akero Therapeutics announced it has entered into a definitive agreement to be acquired by Novo Nordisk A/S in a transaction valued at up to $5.2 billion in cash. Under the terms of the deal, Akero shareholders will receive $54.00 per share at closing plus a non-transferable Contingent Value Right (CVR) that could pay an additional $6.00 per share contingent on full U.S. regulatory approval of efruxifermin (EFX) for compensated cirrhosis associated with MASH.

Roche Acquires Poseida Therapeutics

November 28, 2024

Biotechnology

Roche Holdings, Inc. has agreed to acquire San Diego-based Poseida Therapeutics for $9.00 per share in cash plus a contingent value right (CVR) for up to $4.00 per share, representing an aggregate equity value of up to $1.5 billion. The acquisition will bring Poseida's non-viral gene-editing platforms, allogeneic TSCM-rich CAR-T programs and in-house GMP cell therapy manufacturing into Roche's Pharmaceuticals Division to establish a new core capability in allogeneic cell therapy.

AbCellera Acquires TetraGenetics

September 13, 2021

Biotechnology

AbCellera Biologics Inc. acquired TetraGenetics, Inc. in an all-cash transaction to integrate TetraGenetics' recombinant transmembrane protein expression platform into AbCellera's antibody discovery technology stack. The acquisition expands AbCellera's ability to generate antibodies against difficult-to-drug ion channels, GPCRs and other transmembrane targets, and includes upfront and milestone-based payments.