iRhythm Technologies, Inc. — Director's Dealing 2026

Feb 26, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: iRhythm Holdings, Inc. (IRTC)
CIK: 0001388658
Period of Report: 2026-02-24

Reporting Person: Blackford Quentin S. (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-24	Common Stock	A	46687	—	Acquired	211666	Direct
2026-02-25	Common Stock	S	25540	$135.4189	Disposed	186126	Direct

Footnotes

F1: Represents the acquisition of shares upon the determination of the Compensation & Human Capital Management Committee of the Board of Directors of the Issuer that the performance conditions were met with respect to performance Restricted Stock Units ("RSUs") granted to the Reporting Person on February 27, 2023.

F2: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of performance RSUs.