Amphastar Pharmaceuticals, Inc.

Amphastar Pharmaceuticals is a biopharmaceutical company that specializes in the development, manufacturing, and commercialization of technically challenging generic and proprietary injectable, inhalation, and intranasal products. The company also produces insulin active pharmaceutical ingredients (APIs) and operates cGMP-compliant facilities to support its diverse product portfolio. Headquartered in Rancho Cucamonga, California, Amphastar serves hospital and urgent care clinical settings, distributing its products primarily through group purchasing organizations and drug wholesalers. The company has been shifting its strategic focus toward a mix of proprietary and biosimilar assets to drive long-term growth.