iRhythm Holdings (NASDAQ: IRTC) EVP sells 2,830 RSU tax shares

Rhea-AI Filing Summary

iRhythm Holdings, Inc. executive Sumi Shrishrimal, EVP and Chief Risk Officer, reported selling a total of 2,830 shares of common stock in three open-market transactions on March 2, 2026 at prices around $128.44 per share. According to the disclosure, these shares were sold to cover tax withholding and remittance obligations related to the vesting of Restricted Stock Units (RSUs). Following these sales, Shrishrimal directly owned 41,870 shares of iRhythm common stock.

Insider Trade Summary

Net Seller: 2,830 shares ($363,484)

Net Sell 3 txns

Insider Shrishrimal Sumi

Role EVP, Chief Risk Officer

Sold 2,830 shs ($363K)

Type	Security	Shares	Price	Value
Sale	Common Stock	946	$128.4382	$122K
Sale	Common Stock	906	$128.4387	$116K
Sale	Common Stock	978	$128.4416	$126K

Holdings After Transaction: Common Stock — 43,754 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)
03/02/2026

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	03/02/2026	03/02/2026	S		946(1)	D	$128.4382	43,754	D
Common Stock	03/02/2026	03/02/2026	S		906(1)	D	$128.4387	42,848	D
Common Stock	03/02/2026	03/02/2026	S		978(1)	D	$128.4416	41,870	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 shares were sold to cover tax withholding and remittance obligations in connection with the vesting of Restricted Stock Units (RSUs).

Remarks:

	/s/ Marc Rosenbaum, attorney-in-fact	03/03/2026
	** 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

How many iRhythm (IRTC) shares did EVP Sumi Shrishrimal sell?

Sumi Shrishrimal sold 2,830 iRhythm shares. The Form 4 shows three open-market sales of 946, 906, and 978 shares on March 2, 2026, all in common stock, primarily to cover tax withholding tied to vesting RSUs.

What prices were received in the iRhythm (IRTC) insider share sales?

The reported sale prices were about $128.44 per share. The transactions occurred at $128.4382, $128.4387, and $128.4416 on March 2, 2026, reflecting tightly grouped prices for the 2,830 common shares sold.

Why did iRhythm (IRTC) EVP Sumi Shrishrimal sell shares?

The shares were sold to cover tax withholding obligations. A footnote explains the 2,830 shares were sold to satisfy tax withholding and remittance requirements triggered by the vesting of Restricted Stock Units (RSUs), rather than as a standalone discretionary sale.

How many iRhythm (IRTC) shares does Sumi Shrishrimal own after the transactions?

After the sales, Shrishrimal directly owned 41,870 shares. The Form 4 shows the direct ownership figure decreasing with each transaction, ending at 41,870 iRhythm common shares following the final sale on March 2, 2026.

What is Sumi Shrishrimal’s role at iRhythm (IRTC)?

Sumi Shrishrimal serves as EVP and Chief Risk Officer. The Form 4 identifies Shrishrimal as an officer of iRhythm Holdings, Inc., holding the title Executive Vice President, Chief Risk Officer, while reporting the recent common stock sales.

Were the iRhythm (IRTC) insider sales direct or indirect holdings?

The reported iRhythm share sales involved direct ownership. Each transaction is coded as direct ("D") ownership of common stock, with no indication of trusts or other entities, and nature of ownership left blank in the disclosure.