iRhythm (IRTC) Files Form 144 for 5,000-Share Sale on Nasdaq

Rhea-AI Filing Summary

iRhythm Technologies (IRTC) Form 144 reports a proposed sale of 5,000 common shares to occur on 09/03/2025 through Morgan Stanley Smith Barney LLC on Nasdaq with an aggregate market value of $875,000. The filing shows the 5,000 shares were originally granted as restricted stock in four tranches between 07/01/2020 and 12/31/2023, and the total equals the 5,000 shares listed for sale. The filer previously sold 3,737 shares in the past three months for aggregate proceeds of $573,285.36. The filing includes the required attestation that the seller is not aware of undisclosed material adverse information.

Positive

• Full disclosure of share origin: The filing lists acquisition dates and amounts that exactly match the 5,000 shares proposed for sale.
• Broker and exchange specified: Morgan Stanley Smith Barney LLC and Nasdaq are named, which clarifies execution venue.
• Compliance attestation included: The filer represents no undisclosed material adverse information, meeting Rule 144 requirements.

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine insider sale filing showing planned disposition of restricted shares through a broker; size is immaterial to market cap.

The Form 144 documents a routine notice of proposed sale by an insider or affiliate, using Morgan Stanley Smith Barney LLC as broker on Nasdaq. The 5,000-share block equals the aggregate of four restricted-stock issuances listed in the filing, indicating the sale is of vested/issued shares rather than a secondary transfer from a third party. Recent dispositions of 737 and 3,000 shares in June and September 2025 are disclosed, with combined recent proceeds of $573,285.36. Given the company's outstanding shares of 32,127,763, the proposed sale represents roughly 0.016% of shares outstanding, which is unlikely to be material to valuation but is relevant for transparency and insider activity tracking.

Corporate Governance Expert

TL;DR: Filing reflects compliance with Rule 144 disclosure; it documents source and timing of restricted-stock acquisitions.

The notice clearly ties the securities to specific restricted-stock grants dated 2020, 2022, 2023, and 2023, listing acquisition dates and quantities that sum to the 5,000 shares to be sold. This level of granularity supports compliance with Rule 144 aggregation and attestation requirements. The included representation regarding lack of undisclosed material information and mention of trading-plan related fields (left blank) indicate no reliance disclosed on a Rule 10b5-1 plan within this filing. For governance monitoring, the filing provides the necessary facts without revealing additional company-sensitive information.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	5000	875000.00	32127763	09/03/2025	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	12/31/2023	Restricted Stock	ISSUER			1159	12/31/2023	Not Applicable
Common	03/01/2023	Restricted Stock	ISSUER			278	03/01/2023	Not Applicable
Common	07/01/2022	Restricted Stock	ISSUER			1365	07/01/2022	Not Applicable
Common	07/01/2020	Restricted Stock	ISSUER			2198	07/01/2020	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
DANIEL WILSON 699 8th Street Suite 600 San Francisco CA 94103	COMMON	09/02/2025	737	123285.36
DANIEL WILSON 699 8th Street Suite 600 San Francisco CA 94103	Common	06/23/2025	3000	450000.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Form 144 filed for IRTC disclose about the planned sale?

The filing discloses a proposed sale of 5,000 common shares on 09/03/2025 through Morgan Stanley Smith Barney LLC on NASDAQ with an aggregate market value of $875,000.

Who sold shares in the past three months according to this Form 144?

Daniel Wilson is listed as having sold 737 shares on 09/02/2025 and 3,000 shares on 06/23/2025 for combined gross proceeds of $573,285.36.

What is the source of the 5,000 shares being sold?

The 5,000 shares were acquired as restricted stock in four tranches dated 07/01/2020, 07/01/2022, 03/01/2023, and 12/31/2023, totaling 5,000 shares.

How large is the proposed sale relative to IRTC's outstanding shares?

The filing lists 32,127,763 shares outstanding; the proposed 5,000-share sale represents approximately 0.016% of outstanding shares.

Does the Form 144 indicate reliance on a Rule 10b5-1 trading plan?

No date for a plan adoption or instruction is provided in the filing, and no reliance on a Rule 10b5-1 plan is indicated.