EXHIBIT 31.1
Certification of Chief Executive Officer
Pursuant to Section 302 of Sarbanes-Oxley Act of 2002
I, Frank Witney, certify that:
1. | I have reviewed this Amendment No.1 to the Quarterly Report on Form 10-Q/A of Affymetrix, 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; |
May 3, 2013 | /s/ FRANK WITNEY | |
Name: | Frank Witney | |
Title: | Director, President and Chief Executive Officer |