Exhibit 31.4
CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER
PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
I, Josiah Craver, certify that:
| 1. | I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2025 of Sensei Biotherapeutics, Inc. (the “registrant”); 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: June 2, 2026 | By: | /s/ Josiah Craver | ||||
| Josiah Craver | ||||||
| Senior Vice President, Finance (Principal Financial Officer) |
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