iRhythm (IRTC): Capital Research Reports 1.51M Shares, 4.7% Stake

Capital Research Global Investors filed Amendment No.4 to a Schedule 13G/A reporting its holdings in iRhythm Technologies, Inc. (Common Stock, CUSIP 450056106).

Rhea-AI Filing Summary

Capital Research Global Investors filed Amendment No.4 to a Schedule 13G/A reporting its holdings in iRhythm Technologies, Inc. (Common Stock, CUSIP 450056106). The filing states CRGI holds 1,506,864 shares, representing 4.7% of the 31,925,267 shares believed outstanding, with sole voting and dispositive power for that amount. The filing cites an event date of 06/30/2025 and is signed on 08/05/2025.

The filing describes CRGI as a division of Capital Research and Management Company and related investment management entities that provide services under the name "Capital Research Global Investors." The statement includes a certification that the shares were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.

Insights

Financial Analyst

TL;DR: CRGI reports a 4.7% passive stake (1,506,864 shares) in IRTC; below 5% threshold, limited governance impact.

The filing discloses a non-controlling position of 1,506,864 shares, representing 4.7% of the 31,925,267 shares believed outstanding. Voting and dispositive power are reported as sole for that exact amount, and the certification states the holdings are in the ordinary course of business and not intended to influence control. From an investment-analysis perspective, this is a notable institutional position but falls below common 5% thresholds that often trigger heightened investor scrutiny or additional disclosure obligations.

Corporate Governance Expert

TL;DR: The filing confirms sole voting/dispositive power for 1,506,864 shares and certifies holdings not intended to influence issuer control.

The Schedule 13G/A clarifies the reporting person is Capital Research Global Investors, a division of Capital Research and Management Company and affiliated investment management entities, organized in Delaware. The report emphasizes a passive ownership stance with explicit certification that the stake was not acquired to change or influence company control. Given the 4.7% level, this position is material as an institutional holding but does not, by itself, indicate governance intentions or control actions disclosed in this filing.

FAQ

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

What ownership stake did Capital Research Global Investors report in iRhythm (IRTC)?

The filing reports 1,506,864 shares, representing 4.7% of the 31,925,267 shares believed outstanding.

What type of SEC filing did Capital Research Global Investors submit for IRTC?

They filed an Amendment No. 4 to Schedule 13G/A reporting beneficial ownership in iRhythm Technologies, Inc.

What date is listed as the event requiring the Schedule 13G filing?

The filing cites an event date of 06/30/2025.

Does the filing indicate voting or dispositive power over the reported shares?

Yes. The filing reports sole voting power of 1,506,864 shares and sole dispositive power of 1,506,864 shares.

Did Capital Research state whether the shares were acquired to influence control of iRhythm?

The filing includes a certification that the securities were acquired and are held in the ordinary course of business and not to change or influence control of the issuer.

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

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Accepted by SEC EDGAR 08/13/2025 - 11:39 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 4)

iRhythm Technologies, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

450056106

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 450056106

1

Names of Reporting Persons

Capital Research Global Investors

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,506,864.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,506,864.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,506,864.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

4.7 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: iRhythm Technologies, Inc.
(b)	Address of issuer's principal executive offices: 699 8th Street, Suite 600, San Francisco, CA 94103, United States of America
Item 2.
(a)	Name of person filing: Capital Research Global Investors
(b)	Address or principal business office or, if none, residence: 333 South Hope Street, 55th Fl, Los Angeles, CA 90071
(c)	Citizenship: N/A
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 450056106
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 1,506,864 ** **Capital Research Global Investors ("CRGI") is a division of Capital Research and Management Company ("CRMC"), as well as its investment management subsidiaries and affiliates Capital Bank and Trust Company, Capital International, Inc., Capital International Limited, Capital International Sarl, Capital International K.K., Capital Group Private Client Services, Inc., and Capital Group Investment Management Private Limited (together with CRMC, the "investment management entities"). CRGI's divisions of each of the investment management entities collectively provide investment management services under the name "Capital Research Global Investors." CRGI is deemed to be the beneficial owner of 1,506,864 shares or 4.7% of the 31,925,267 shares believed to be outstanding.
(b)	Percent of class: 4.7 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1,506,864
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1,506,864
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Capital Research Global Investors

Signature:	Jae Won Chung
Name/Title:	Vice President and Senior Counsel II, Capital Research and Management Company
Date:	08/05/2025