Exhibit 31.3
CERTIFICATIONS
I, Chris Diorio, Ph.D., certify that:
| 1. | I have reviewed this Amendment No. 1 to the Annual Report on Form10-K of Impinj, 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 30, 2018
/s/ Chris Diorio |
| Chris Diorio, Ph.D. |
Chief Executive Officer (Principal Executive Officer) |
