December 13, 2021 – Pfizer Inc. has entered into a definitive agreement under which Pfizer will acquire Arena Pharmaceuticals, Inc., a clinical stage company developing innovative potential therapies for the treatment of several immuno-inflammatory diseases.
Under the terms of the agreement, Pfizer will acquire all the outstanding shares of Arena for $100 per share in an all-cash transaction for a total equity value of approximately $6.7 billion. The boards of directors of both companies have unanimously approved the transaction.
Arena’s portfolio includes diverse development-stage therapeutic candidates in gastroenterology, dermatology, and cardiology, including etrasimod, an oral, selective sphingosine 1-phosphate (S1P) receptor modulator currently in development for a range of immuno-inflammatory diseases including gastrointestinal and dermatological diseases.
In addition, Arena’s pipeline includes two development-stage cardiovascular assets, temanogrel and APD418. Temanogrel is currently in Phase 2 for the treatment of microvascular obstruction and Raynaud’s phenomenon secondary to systemic sclerosis. APD418 is currently in Phase 2 for acute heart failure.
Under the terms of the merger agreement, Pfizer will acquire all of the outstanding shares of Arena common stock for $100 per share in cash. The proposed transaction is subject to customary closing conditions, including receipt of regulatory approvals and approval by Arena’s stockholders.