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iRhythm Holdings, Inc.

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

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.

Q2 2025 vs. Q1 2025

How the institutions holding iRhythm Holdings, Inc. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of IRTC: Q1 2025 compared with Q2 2025
MeasureQ1 2025Of which not filed for Q2 2025Q2 2025Change
Holders2562304+50
Shares36.0M2.67K35.4M−589.7K (−1.6%)
Value$3.77B$279.6K$5.44B+$1.67B (+44.4%)

2 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (71)

Institutions that held iRhythm Holdings, Inc. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to IRTC in Q2 2025
InstitutionSharesValue% of portfolio
Man Group plc267,603$41.2M0.09%
Loomis Sayles & Co L P255,517$39.3M0.05%
D. E. Shaw & Co., Inc.247,836$38.2M0.04%
Driehaus Capital Management LLC161,646$24.9M0.20%
Massachusetts Financial Services Co126,455$19.5M0.01%
PFM Health Sciences, LP88,157$13.6M1.18%
Oberweis Asset Management Inc81,200$12.5M0.54%
M&G Plc74,398$11.5M0.06%
Walleye Capital LLC73,822$11.4M0.11%
TimesSquare Capital Management, LLC71,660$11.0M0.16%
Jump Financial, LLC62,795$9.67M0.12%
Connor, Clark & Lunn Investment Management Ltd.53,926$8.30M0.03%
Federated Hermes, Inc.48,424$7.46M0.01%
Qube Research & Technologies Ltd47,425$7.30M0.01%
Integral Health Asset Management, LLC40,000$6.16M0.58%
Hillsdale Investment Management Inc.37,500$5.77M0.21%
EAM Investors, LLC33,968$5.23M0.79%
Y-Intercept (Hong Kong) Ltd30,413$4.68M0.11%
Quantbot Technologies LP23,242$3.58M0.09%
Nomura Holdings Inc16,031$2.47M0.02%
Winton Group Ltd12,877$1.98M0.10%
Entropy Technologies, LP11,189$1.72M0.14%
Numerai GP LLC9,757$1.50M0.22%
Centiva Capital, LP9,622$1.48M0.10%
O'Neil Global Advisors, Inc.9,176$1.41M0.33%
Arrowstreet Capital, Limited Partnership8,304$1.28M0.00%
Gotham Asset Management, LLC7,976$1.23M0.01%
Cookson Peirce & Co Inc7,072$1.09M0.05%
Wetherby Asset Management Inc6,742$1.04M0.05%
Future Fund LLC6,608$1.02M0.45%
One Capital Management, LLC6,608$1.02M0.04%
Occudo Quantitative Strategies LP6,135$944.5K0.11%
Virtue Capital Management, LLC5,685$875.3K0.16%
Bryce Point Capital, LLC4,860$748.2K0.63%
Franklin Resources Inc4,558$701.7K0.00%
Morris Retirement Advisors, LLC3,323$511.5K0.24%
O'Shaughnessy Asset Management, LLC3,245$499.6K0.00%
Virginia Retirement Systems Et Al2,700$415.7K0.00%
R Squared Ltd2,621$403.5K0.22%
Everence Capital Management Inc2,590$399.0K0.03%
Quadrature Capital Ltd2,360$363.3K0.01%
Corton Capital Inc.2,223$342.3K0.40%
Harbour Capital Advisors, LLC2,235$319.1K0.07%
Two Sigma Investments, LP1,900$292.5K0.00%
Anb Bank1,826$281.1K0.13%
Aigen Investment Management, LP1,686$259.6K0.04%
Neuberger Berman Group LLC1,611$248.0K0.00%
Moody National Bank Trust Division1,602$246.6K0.02%
Ethic Inc.1,566$242.3K0.00%
Corient IA LLC1,500$230.9K0.14%
Bank of Montreal1,454$223.9K0.00%
Atria Investments LLC1,300$200.1K0.00%
Versor Investments LP1,300$200.1K0.04%
State of Wyoming1,163$179.1K0.02%
Lazard Asset Management LLC468$72.0K0.00%
Antipodes Partners Ltd255$39.3K0.00%
Danske Bank A/S100$15.4K0.00%
Skopos Labs, Inc.100$15.4K0.00%
Private Trust Co NA46$7.08K0.00%
Brown Brothers Harriman & Co23$3.54K0.00%
Toronto Dominion Bank20$3.08K0.00%
Armstrong Advisory Group, Inc7$1.08K0.00%
Bare Financial Services, Inc7$1.08K0.00%
Global Retirement Partners, LLC5$7700.00%
Kilter Group LLC5$7700.00%
UMA Financial Services, Inc.3$4620.00%
Twin Peaks Wealth Advisors, LLC2$3250.00%
Tortoise Investment Management, LLC2$3080.00%
Essential Partners LLC2$3080.00%
Concord Wealth Partners1$1540.00%
TFC Financial Management1$1540.00%

Sold out (21)

Institutions that held iRhythm Holdings, Inc. at the end of Q1 2025 and filed for Q2 2025 without it.

Not filed for Q2 2025 yet (2)

Institutions that held iRhythm Holdings, Inc. at the end of Q1 2025 and haven't filed a 13F for Q2 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IRTC in Q1 2025 that haven't filed for Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
Caas Capital Management LP2,502$261.9K
Lindbrook Capital, LLC169$17.7K