Amgen to acquire Onyx Pharmaceuticals for $10.4b

The Boards of Amgen and Onyx Pharmaceuticals, Inc. have unanimously approved a transaction under which Amgen will acquire all of the outstanding shares of Onyx for $125 per share in cash.  The purchase price is $10.4 billion, or $9.7 billion net of estimated Onyx cash.

Onyx Pharmaceuticals, Inc. is a global biopharmaceutical company engaged in the development and commercialization of innovative therapies for improving the lives of people with cancer. Onyx has a portfolio of oncology products for multiple myeloma, with Kyprolis® (carfilzomib) for Injection already approved in the United States (U.S.) and three partnered oncology assets: Nexavar®(sorafenib) tablets (an Onyx and Bayer HealthCare Pharmaceuticals, Inc. compound), Stivarga®(regorafenib) tablets (a Bayer compound), and palbociclib (a Pfizer, Inc. compound).  Onyx also has multiple oncology compounds in various stages of clinical development.

“We believe that Amgen is ideally suited to realize the full potential of Onyx’s portfolio and pipeline for the benefit of physicians and patients,” said Robert A. Bradway, chairman and chief executive officer at Amgen. Amgen intends to leverage its oncology capabilities and experience to support Onyx’s clinical development programs and maximize Kyprolis’ potential in the U.S. and the rest of the world.