Quentin S. Blackford - 24 Feb 2026 Form 4 Insider Report for iRhythm Holdings, Inc. (IRTC)

Role
President and CEO, Director
Signature
/s/ Marc Rosenbaum, attorney-in-fact
Issuer symbol
IRTC
Transactions as of
24 Feb 2026
Net transactions value
-$3,458,599
Form type
4
Filing time
26 Feb 2026, 17:14:46 UTC
Previous filing
04 Nov 2025
Next filing
27 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Blackford Quentin S. President and CEO, Director C/O IRHYTHM HOLDINGS, INC., 699 8TH ST #600, SAN FRANCISCO /s/ Marc Rosenbaum, attorney-in-fact 26 Feb 2026 0001612451

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IRTC Common Stock Award $0 +46,687 +28% $0.000000 211,666 24 Feb 2026 Direct F1
transaction IRTC Common Stock Sale $3,458,599 -25,540 -12% $135.42 186,126 25 Feb 2026 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.

Remarks:

On January 12, 2026, iRhythm Technologies, Inc. (iRhythm Tech) and iRhythm Holdings, Inc. (Issuer) effectuated a holding company reorganization pursuant to which the Issuer became the successor issuer to iRhythm Tech pursuant to Rule 12g-3(a) of the Securities Exchange Act of 1934, as amended. On such date, all outstanding shares and equity awards of iRhythm Tech automatically converted into securities of the Issuer on a one for one basis, with no change to the proportionate interests of security holders.