Type	Name	Date
Indenture	Second Supplemental Indenture, between Onyx Pharmaceuticals, Inc. and Wells Fargo Bank, National Association	10/01/2013
Indenture	Indenture between Onyx Pharmaceuticals, Inc. and Wells Fargo Bank, National Association	08/12/2009

Type	Name	Date
By-Laws	Amended and Restated Bylaws of Onyx Pharmaceuticals, Inc	10/01/2013

Type	Name	Date
Merger agreement	Agreement and Plan of Merger by and among Onyx Pharmaceuticals, Inc., Amgen Inc. and Arena Acquisition Company	08/26/2013