Exhibit 31.4
CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
I, Rita O’Connor, certify that:
| 1. | I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K of PLx Pharma 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 24, 2020 |
| /s/ Rita O’Connor |
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| Rita O’Connor |
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| Chief Financial Officer (principal financial officer) |
