CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO RULE 13a-14(a) / 15d-14(a) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED
I, Norbert G. Riedel, certify that:
1. | I have reviewed this Quarterly Report on Form 10-Q for the period ended June 30, 2021 of Aptinyx Inc.; |
b. | any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting. |
| | | | |
Date: | August 10, 2021 | By: | | /s/ Norbert G. Riedel |
| | | | Norbert G. Riedel |
| | | | Chief Executive Officer (Principal Executive Officer) |