Exhibit 31
CERTIFICATIONS
I, Robert A. Bradway, Chairman of the Board, President and Chief Executive Officer of Amgen Inc., certify that:
| 1. | I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K/A of Amgen Inc.; |
| 2. | Based on my knowledge, this Amendment No. 1 does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Amendment No. 1. |
| Date: July 31, 2013 | /s/ Robert A. Bradway
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| Robert A. Bradway | ||||
| Chairman of the Board, Chief Executive Officer and President | ||||
CERTIFICATIONS
I, Jonathan M. Peacock, Executive Vice President and Chief Financial Officer of Amgen Inc., certify that:
| 1. | I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K/A of Amgen Inc.; |
| 2. | Based on my knowledge, this Amendment No. 1 does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Amendment No. 1. |
| Date: July 31, 2013 | /s/ JONATHAN M. PEACOCK
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| Jonathan M. Peacock | ||||
| Executive Vice President and Chief Financial Officer | ||||
