iRhythm (NASDAQ: IRTC) EVP sells 2,585 shares under 10b5-1 plan

Rhea-AI Filing Summary

iRhythm Holdings EVP Mervin Smith reported an open-market sale of 2,585 shares of common stock at $114.30 per share. The transaction took place on March 16, 2026 and was executed under a pre-established Rule 10b5-1 trading plan adopted on November 19, 2025.

After this sale, Smith continues to hold 23,027 shares directly, indicating he retains a substantial equity position in the company despite the disposition.

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).

X

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^*

Smith Mervin

(Last) (First) (Middle)

C/O IRHYTHM HOLDINGS, INC.

699 8TH STREET, #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 Strategic Business Ops

3. Date of Earliest Transaction (Month/Day/Year)
03/16/2026

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	03/16/2026	03/16/2026	S		2,585(1)	D	$114.3	23,027	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. The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan established by the reporting person on November 19, 2025.

Remarks:

	/s/ Marc Rosenbaum, attorney-in-fact	03/17/2026
	** 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 Mervin Smith?

iRhythm reported that EVP Strategic Business Ops Mervin Smith sold 2,585 shares of common stock. The sale occurred on March 16, 2026 at a price of $114.30 per share in an open-market transaction disclosed on Form 4.

How many iRhythm (IRTC) shares does Mervin Smith hold after this sale?

After the reported sale, Mervin Smith directly holds 23,027 shares of iRhythm common stock. This remaining stake shows he continues to have meaningful equity exposure to the company following the relatively small sale of 2,585 shares.

Was the iRhythm (IRTC) insider sale by Mervin Smith pre-planned?

Yes. The filing notes the sale was effected under a Rule 10b5-1 trading plan. That trading plan was established by Mervin Smith on November 19, 2025, indicating the transaction was pre-arranged rather than a discretionary market-timing decision.

What was the value of Mervin Smith’s iRhythm (IRTC) stock sale?

The transaction involved 2,585 shares sold at $114.30 per share. This implies gross sale proceeds of roughly $295,000 based on the disclosed per-share price, before any taxes, fees, or commissions associated with the open-market transaction.

What role does Mervin Smith hold at iRhythm (IRTC) in this Form 4?

In this Form 4, Mervin Smith is identified as an officer of iRhythm, serving as EVP Strategic Business Ops. His role as an executive makes his equity transactions subject to insider reporting requirements under U.S. securities regulations.