EX-31.2 4 exel2017033110-qaexhibit312.htm EXHIBIT 31.2

Exhibit

Exhibit 31.2

CERTIFICATION

I, Christopher J. Senner, certify that:

1. I have reviewed this Form 10-Q/A of Exelixis, 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.

/s/    CHRISTOPHER J. SENNER

Christopher J. Senner

Executive Vice President and Chief Financial Officer

(Principal Financial Officer)

Date: July 14, 2017