Exhibit 32.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, Michel Detheux, the Chief Executive Officer, and Matthew Gall, the Chief Financial Officer, of iTeos Therapeutics, Inc. (the “Company”), hereby certify, that, to their knowledge:
| (1) | the Quarterly Report on Form 10-Q for the period ended June 30, 2020 (the “Report”) of the Company fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
| (2) | the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |
Date: September 1, 2020 | By: | /s/ Michel Detheux |
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| Michel Detheux |
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| President, Chief Executive Officer and Director |
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| (Principal Executive Officer) |
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Date: September 1, 2020 | By: | /s/ Mathew Gall |
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| Matthew Gall |
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| Chief Financial Officer |
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| (Principal Financial Officer and |
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| Principal Accounting Officer) |
