EX-32.1 10 irtc-20221231xex321.htm EX-32.1
Exhibit 32.1
CERTIFICATIONS OF CHIEF EXECUTIVE OFFICER AND CHIEF 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 Annual Report of iRhythm Technologies, Inc. (the “Company”) on Form 10-K for the year ending December 31, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:
(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.

Date: February 23, 2023 | By: | /s/ Quentin S. Blackford
|  | Quentin S. Blackford President and Chief Executive Officer (Principal Executive Officer)
| By: | /s/ Brice Bobzien
|  | Brice Bobzien Chief Financial Officer (Principal Financial Officer)