Adicet Bio (ACET) 10-Q 2021 Q1 Quarterly report

Exhibit 32.1

CERTIFICATIONS OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Adicet Bio, Inc. (the “Company”) for the quarter ended March 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C. Section 1350, that, to the best of their knowledge:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Chen Schor

Chen Schor

President and Chief Executive Officer

(Principal Executive Officer)

Dated: May 17, 2021

/s/ Nick Harvey

Nick Harvey

Chief Financial Officer

(Principal Financial and Accounting Officer)

Dated:  May 17, 2021