iRhythm (IRTC) EVP, Chief Risk Officer awarded 5,518 RSUs in Form 4

Rhea-AI Filing Summary

Shrishrimal Sumi reported acquisition or exercise transactions in this Form 4 filing.

iRhythm Holdings, Inc. executive Sumi Shrishrimal, EVP and Chief Risk Officer, received a grant of 5,518 shares of Common Stock in the form of Restricted Stock Units (RSUs) on February 25, 2026 at a stated price of $0.00 per share. Following this equity award, her directly held common stock position is reported as 44,700 shares. Each RSU represents a right to receive one share of common stock, with 25% of the RSUs scheduled to vest on March 1, 2027 and the remaining RSUs vesting in equal installments on each one-year anniversary thereafter, contingent on her continued service.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Shrishrimal Sumi

Role EVP, Chief Risk Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	5,518	$0.00	--

Holdings After Transaction: Common Stock — 44,700 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Shrishrimal Sumi

(Last) (First) (Middle)

C/O IRHYTHM HOLDINGS, INC.

699 8TH ST #600

(Street)

SAN FRANCISCO CA 94103

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
iRhythm Holdings, Inc. [ IRTC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Risk Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/25/2026	02/25/2026	A		5,518(1)	A	$0	44,700	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. These securities are Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. 25% of the RSUs vest on March 1, 2027 and each one-year anniversary thereafter, subject to the Reporting Person continuing as a service provider through each such date.

Remarks:

	/s/ Marc Rosenbaum, attorney-in-fact	02/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did iRhythm (IRTC) report for Sumi Shrishrimal?

iRhythm reported that EVP and Chief Risk Officer Sumi Shrishrimal received a grant of 5,518 Restricted Stock Units of Common Stock. These RSUs were awarded at a stated price of $0.00 per share as part of her equity compensation package.

How many iRhythm (IRTC) shares does Sumi Shrishrimal hold after this Form 4?

After the reported grant, Sumi Shrishrimal is shown as directly holding 44,700 shares of iRhythm common stock. This total includes the impact of the 5,518-share RSU award disclosed in the Form 4 insider transaction report.

What are the vesting terms of the 5,518 RSUs granted by iRhythm (IRTC)?

The 5,518 RSUs vest over four years. Twenty-five percent vest on March 1, 2027, with the remaining RSUs vesting on each one-year anniversary thereafter, so long as Sumi Shrishrimal continues as a service provider through those dates.

Does the Form 4 for iRhythm (IRTC) involve a stock purchase or sale?

The Form 4 reflects an equity award, not an open-market purchase or sale. It reports an acquisition coded as a grant or award of 5,518 Restricted Stock Units at a stated price of $0.00 per share to executive Sumi Shrishrimal.

What does each iRhythm (IRTC) RSU in this filing represent?

Each Restricted Stock Unit reported in the filing represents a contingent right to receive one share of iRhythm’s Common Stock. Delivery of those shares depends on the vesting schedule and Sumi Shrishrimal’s continued service with the company.

Who is the insider involved in this iRhythm (IRTC) Form 4 transaction?

The insider is Sumi Shrishrimal, who serves as Executive Vice President and Chief Risk Officer of iRhythm Holdings, Inc. The Form 4 reports her receiving a grant of 5,518 Restricted Stock Units of the company’s Common Stock as compensation.