EX-32.1 9 avro-ex321_7.htm EX-32.1

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

In connection with the Annual Report of AVROBIO, Inc. (the “Company”) on Form 10-K for the year ended December 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of the Company certifies, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, to the best of his or her knowledge that:

(1) The Report 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 result of operations of the Company.

Date: March 18, 2021 |  | By: |  | /s/ Geoff MacKay
|  |  |  | Geoff MacKay
|  |  |  | Chief Executive Officer (Principal Executive Officer)

Date: March 18, 2021 |  | By: |  | /s/ Erik Ostrowski
|  |  |  | Erik Ostrowski
|  |  |  | Chief Financial Officer (Principal Financial Officer)