Quentin S. Blackford - 07 Aug 2026 Form 4 Insider Report for iRhythm Holdings, Inc. (IRTC)

Reporting relationship: President and CEO, Director
Issuer ticker: IRTC
Reported as of: 07 Aug 2026
Net transaction value: -$3,348,012
SEC form: 4
Accepted by SEC: 11 Aug 2026, 16:02:42 UTC
Prior SEC filing: 12 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Marc Rosenbaum, attorney-in-fact

Key filing fact

Quentin S. Blackford filed Form 4 for iRhythm Holdings, Inc. (IRTC) on 11 Aug 2026.

Key facts

This page summarizes Quentin S. Blackford's Form 4 filing for iRhythm Holdings, Inc. (IRTC).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 11 Aug 2026, 16:02.

Change

Previous filing in this sequence was filed on 12 Jun 2026.
Current net transaction value: -$3,348,012.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001612451 Primary reporting owner

Blackford Quentin S.

Relationship: President and CEO, Director
Address: C/O IRHYTHM HOLDINGS, INC., 699 8TH ST #600, SAN FRANCISCO
Signature: /s/ Marc Rosenbaum, attorney-in-fact
Signature date: 11 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

IRTC transaction

Common Stock

Award

Transaction value
Shares: +48,534
Change %: +24%
Price: $0.000000^*
Shares after: 252,867
Date: 07 Aug 2026
Ownership: Direct
Footnotes: F1

IRTC transaction

Common Stock

Sale

Transaction value: $3,348,012
Shares: -26,859
Change %: -11%
Price: $124.65
Shares after: 226,008
Date: 10 Aug 2026
Ownership: Direct
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote 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 August 7, 2023.

Footnote F2

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