CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO RULE 13a-14(a) / 15d-14(a) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED
I, Ashish Khanna, certify that:
1. | I have reviewed this Quarterly Report on Form 10‑Q for the period ended September 30, 2019 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. |
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Date: | November 12, 2019 | By: |
| /s/ Ashish Khanna |
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| Ashish Khanna |
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| Chief Financial Officer and Chief Business Officer (Principal Financial and Accounting Officer) |