Exhibit 31.2
Certification of Chief Executive Officer and Chief Financial Officer
Pursuant to
Section 302 of the Sarbanes-Oxley Act of 2002
I, James R. Sulat, certify that:
1. | I have reviewed this Amendment No. 1 to Annual Report on Form 10-K/A of Maxygen, Inc.; and |
2. | Based on my knowledge, this report 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 report. |
Date: April 19, 2013
/s/ James R. Sulat |
James R. Sulat |
Chief Executive Officer & Chief Financial Officer |