iRhythm Holdings, Inc.

IRTC

Exchange: Nasdaq
Industry: Surgical & Medical Instruments & Apparatus
SEC CIK: 0001388658

SEC filings (opens in a new tab)

In the last 90 days, iRhythm Holdings, Inc. insiders filed 0 open-market purchases and 11 sales; 304 institutions reported holding it in 13F filings for Q2 2026, worth $4.24B in total; no superinvestor holds it.

Q3 2023 vs. Q2 2023

How the institutions holding iRhythm Holdings, Inc. changed between Q2 2023 and Q3 2023.

All holders in Q3 2023 All holders in Q2 2023

13F holders of IRTC: Q2 2023 compared with Q3 2023
Measure	Q2 2023	Of which not filed for Q3 2023	Q3 2023	Change
Holders	203	2	224	+23
Shares	33.3M	18.4K	33.2M	−137.9K (−0.4%)
Value	$3.47B	$1.92M	$3.12B	−$351.7M (−10.1%)

2 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (38)

Institutions that held iRhythm Holdings, Inc. at the end of Q3 2023 but not at the end of Q2 2023.

Institutions new to IRTC in Q3 2023
Institution	Shares	Value	% of portfolio
Wellington Management Group LLP	219,167	$20.7M	0.00%
First Light Asset Management, LLC	88,039	$8.30M	0.79%
WCM Investment Management, LLC	82,522	$7.78M	0.02%
ExodusPoint Capital Management, LP	41,155	$3.88M	0.05%
Silvercrest Asset Management Group LLC	40,400	$3.81M	0.03%
Squarepoint Ops LLC	22,637	$2.13M	0.01%
Kampmann Melissa S.	22,390	$2.11M	2.04%
Fred Alger Management, LLC	15,760	$1.49M	0.01%
Millrace Asset Group, Inc.	14,272	$1.34M	1.66%
B. Metzler seel. Sohn & Co. AG	12,633	$1.19M	0.02%
Canada Pension Plan Investment Board	11,100	$1.05M	0.00%
Assenagon Asset Management S.A.	9,688	$913.2K	0.00%
Dynamic Technology Lab Private Ltd	9,463	$892.0K	0.09%
AlphaCentric Advisors LLC	7,000	$659.8K	0.37%
Verition Fund Management LLC	6,396	$602.9K	0.01%
RE Advisers Corp	6,300	$593.8K	0.02%
Walleye Capital LLC	4,685	$441.6K	0.01%
Bayesian Capital Management, LP	4,287	$404.1K	0.05%
O'Shaughnessy Asset Management, LLC	4,025	$379.4K	0.01%
Two Sigma Investments, LP	3,863	$364.1K	0.00%
Pictet Asset Management Holding SA	3,382	$318.8K	0.00%
Capstone Investment Advisors, LLC	3,096	$291.8K	0.01%
Virginia Retirement Systems Et Al	3,000	$282.8K	0.00%
Magnetar Financial LLC	2,578	$243.0K	0.01%
Vident Advisory, LLC	2,400	$226.2K	0.01%
Inceptionr LLC	2,279	$214.8K	0.12%
Graham Capital Management, L.P.	2,272	$214.2K	0.01%
Natixis	1,500	$141.4K	0.00%
KBC Group NV	693	$65.0K	0.00%
Walleye Trading LLC	583	$55.0K	0.00%
Lazard Asset Management LLC	404	$38.0K	0.00%
Stephens Inc	175	$16.5K	0.00%
FinTrust Capital Advisors, LLC	26	$2.45K	0.00%
EverSource Wealth Advisors, LLC	20	$1.89K	0.00%
Summit Partners Public Asset Management, LLC	16	$1.51K	0.00%
Larson Financial Group LLC	11	$1.04K	0.00%
Tfo-TDC, LLC	3	$313	0.00%
DHJJ Financial Advisors, Ltd.	2	$189	0.00%

Sold out (15)

Institutions that held iRhythm Holdings, Inc. at the end of Q2 2023 and filed for Q3 2023 without it.

Institutions that sold out of IRTC in Q3 2023
Institution	Shares, Q2 2023	Value, Q2 2023
Twinbeech Capital LP	22,878	$2.39M
Quantbot Technologies LP	19,754	$2.06M
Cerity Partners LLC	11,584	$1.21M
Connor, Clark & Lunn Investment Management Ltd.	10,651	$1.11M
Jump Financial, LLC	10,200	$1.06M
Maverick Capital LtdSuperinvestorMaverick Capital	10,064	$1.05M
Engineers Gate Manager LP	7,650	$798.0K
Vontobel Holding Ltd.	4,373	$456.2K
NinePointTwo Capital	2,616	$272.0K
Cresset Asset Management, LLC	2,071	$216.0K
SeaCrest Wealth Management, LLC	1,985	$207.1K
Carmel Capital Partners, LLC	425	$44.3K
Psagot Value Holdings Ltd. / (Israel)	23	$2.00K
Versant Capital Management, Inc	4	$417
Sofos Investments, Inc.	104	$192

Not filed for Q3 2023 yet (2)

Institutions that held iRhythm Holdings, Inc. at the end of Q2 2023 and haven't filed a 13F for Q3 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IRTC in Q2 2023 that haven't filed for Q3 2023
Institution	Shares, Q2 2023	Value, Q2 2023
Bradley Mark J.	15,025	$1.57M
Pictet Asset Management SA	3,382	$352.8K