Form 144: Proposed sale of 2,585 IRTC performance shares

Mervin Smith reported proposed sales of Common Stock tied to performance shares.

Rhea-AI Filing Summary

Mervin Smith reported proposed sales of Common Stock tied to performance shares. The filing lists 2,585 performance shares with a transaction date of 02/24/2026 and identifies the broker Morgan Stanley Smith Barney LLC.

The filing also records prior sales by Mervin Smith during the past three months: 1,352 shares on 03/02/2026 for $173,652.33, 4,041 shares on 02/25/2026 for $547,227.77, and 732 shares on 02/24/2026 for $103,146.12.

Insights

Compliance Analyst

Form 144 lists a proposed sale of 2,585 performance shares and recent dispositions by the reporting person.

The notice records a proposed brokered sale dated 02/24/2026 and three completed dispositions in late February and early March 2026 with exact share counts and proceeds. This aligns with routine Rule 144 reporting for restricted or control securities.

Documentation shows broker details and per‑trade proceeds; timing and final settlement are tied to the listed dates. Subsequent filings will show actual settlement and any remaining restricted shares.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did the Form 144 for IRTC disclose?

The Form 144 discloses a proposed sale of 2,585 performance shares dated 02/24/2026 and three recent dispositions: 1,352, 4,041, and 732 shares, with reported proceeds for each trade.

Who is the reporting person on the IRTC Form 144?

The filing names Mervin Smith as the reporting person and lists Morgan Stanley Smith Barney LLC as the broker handling the proposed sale of 2,585 performance shares on 02/24/2026.

What were the proceeds reported for recent IRTC sales?

The Form 144 shows proceeds of $173,652.33 for 1,352 shares on 03/02/2026, $547,227.77 for 4,041 shares on 02/25/2026, and $103,146.12 for 732 shares on 02/24/2026.

Are the 2,585 performance shares already sold for IRTC?

The Form 144 lists the 2,585 performance shares as securities to be sold with date 02/24/2026; the notice records the proposed sale rather than confirming settlement, and any final disposition would be reflected in subsequent filings.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/16/2026 - 04:13 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001985217
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	iRhythm Holdings, Inc.
SEC File Number	001-37918
Address of Issuer	699 8th Street Suite 600 San Francisco CALIFORNIA 94103
Phone	(415) 632-5700
Name of Person for Whose Account the Securities are To Be Sold	MERVIN SMITH
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	2585	295465.50	32316760	03/16/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/24/2026	Performance Shares	ISSUER			2585	02/24/2026	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
MERVIN SMITH 699 8th Street Suite 600 San Francisco CA 94103	Common	03/02/2026	1352	173652.33
MERVIN SMITH 699 8th Street Suite 600 San Francisco CA 94103	Common	02/25/2026	4041	547227.77
MERVIN SMITH 699 8th Street Suite 600 San Francisco CA 94103	Common	02/24/2026	732	103146.12

144: Remarks and Signature

Remarks
Date of Notice	03/16/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/19/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Mervin Orsino Smith
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)