Exhibit 31.3
CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
I, Natasha Giordano, 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/ Natasha Giordano |
|
| Natasha Giordano |
|
| President and |
|
| Chief Executive Officer |
|
| (principal executive officer) |
