Type	Name	Date
Merger agreement	Agreement and Plan of Merger, among ChemoCentryx, Inc., Amgen Inc. and Carnation Merger Sub, Inc	08/04/2022
Merger agreement	Agreement and Plan of Merger, by and among Amgen Inc., Franklin Acquisition Sub, Inc. and Five Prime Therapeutics, Inc	03/04/2021
Merger agreement	Agreement and Plan of Merger, by and among Amgen Inc., Arena Acquisition Company and Onyx Pharmaceuticals, Inc	08/26/2013
Merger agreement	Agreement and Plan of Merger, by and among Amgen Inc., Armstrong Acquisition Corp. and Micromet, Inc	01/26/2012