Exhibit 31.3
CERTIFICATION
I, William M. Greenman, certify that:
| 1. | I have reviewed this Amendment No. 1 to the annual report on Form10-K/A of Cerus Corporation; 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: May 31, 2017
/s/ WILLIAM M. GREENMAN |
William M. Greenman Chief Executive Officer (Principal Executive Officer) |
