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iRhythm Technologies (IRTC) Institutional Ownership

iRhythm Technologies logo
$128.52 +0.54 (+0.42%)
As of 08/21/2026 04:00 PM Eastern

Institutional Ownership Changes (13F Filings) for iRhythm Technologies (NASDAQ:IRTC)

Number of
Institutional Buyers
(last 12 months)
177
Total
Institutional Inflows
(last 12 months)
$4.51B
Number of
Institutional Sellers
(last 12 months)
117
Total
Institutional Outflows
(last 12 months)
$3.02B
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IRTC Institutional Buying and Selling by Quarter

iRhythm Technologies Major Shareholders & Ownership History

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/22/2026 Kampmann Melissa S.21,012$2.50M1.9%-4.5%0.064%
8/21/2026 Braidwell LP654,262$77.82M2.9%+7.2%1.985%
8/21/2026 Nykredit A S1,982$236K0.0%N/A0.006%
8/20/2026 Headlands Technologies LLC4,886$581K0.1%+6.7%0.015%
8/20/2026 Two Sigma Securities LLC3,265$388K0.0%+20.9%0.010%
8/19/2026 Hsbc Holdings PLC4,473$528K0.0%N/A0.014%
8/19/2026 Wellington Management Group LLP88,257$10.50M0.0%-2.4%0.268%
8/18/2026 Pin Oak Investment Advisors Inc.2,497$482K0.3%N/A0.008%
8/18/2026 Dearborn Partners LLC29,502$5.69M0.3%N/A0.090%
8/14/2026 Ancora Advisors LLC3,230$384K0.0%N/A0.010%
8/14/2026 Manning & Napier Advisors LLC1,833$348K0.0%N/A0.006%
8/14/2026 Dearborn Partners LLC29,502$5.69M0.3%N/A0.090%
8/13/2026 Covington Investment Advisors Inc.86,635$16.44M2.1%N/A0.263%
8/11/2026 Westport Asset Management Inc.4,127$783K0.3%N/A0.013%
8/11/2026 Madison Asset Management LLC3,572$678K0.0%N/A0.011%
8/7/2026 Citizens Financial Group Inc. RI48,960$9.29M0.1%N/A0.149%
7/10/2026 Handelsbanken Fonder AB12,239$1.46M0.0%+17.2%0.037%
7/9/2026 Hennion & Walsh Asset Management Inc.3,521$419K0.0%-55.4%0.011%
7/8/2026 Assenagon Asset Management S.A.22,161$2.64M0.0%-91.8%0.067%
7/7/2026 Harbor Investment Advisory LLC420$50K0.0%N/A0.001%
5/29/2026 Perceptive Advisors LLC105,026$12.40M0.2%-2.8%0.320%
5/22/2026 Segall Bryant & Hamill LLC99,796$11.78M0.1%-10.7%0.304%
5/19/2026Cim Investment Management Inc.4,491$530K0.1%-18.4%0.014%
5/19/2026 Bank of America Corp DE432,539$51.05M0.0%-41.7%1.316%
5/18/2026 Amundi49,575$5.85M0.0%+48.4%0.151%
5/18/2026California State Teachers Retirement System37,324$4.41M0.0%+22.1%0.114%
5/18/2026 Rock Springs Capital Management LP261,750$30.89M1.8%+11.4%0.797%
5/16/2026 The Manufacturers Life Insurance Company390,577$46.10M0.0%+99.2%1.189%
5/16/2026 Quantinno Capital Management LP18,621$2.20M0.0%+1,172.8%0.057%
5/16/2026 First Light Asset Management LLC168,116$19.84M1.8%+9.3%0.512%
5/16/2026 Castleark Management LLC27,193$3.21M0.1%-45.8%0.083%
5/15/2026 Granahan Investment Management LLC96,022$11.33M0.5%+567.9%0.292%
5/15/2026 Entropy Technologies LP10,652$1.26M0.1%+59.2%0.032%
5/14/2026 Renaissance Technologies LLC53,800$6.35M0.0%-48.2%0.164%
5/14/2026 Arrowstreet Capital Limited Partnership582,879$68.79M0.0%-4.0%1.774%
5/14/2026 Inceptionr LLC5,420$640K0.2%+58.2%0.016%
5/14/2026 Group One Trading LLC1,749$206K0.0%N/A0.005%
5/13/2026 KCM Capital Inc30,000$3.54M0.6%-18.9%0.091%
5/13/2026 First Trust Advisors LP47,589$5.62M0.0%-21.7%0.145%
5/8/2026 PNC Financial Services Group Inc.1,480$175K0.0%-55.2%0.005%
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5/7/2026 WCM Investment Management LLC108,078$12.34M0.0%+47.5%0.329%
5/7/2026 KBC Group NV870$103K0.0%-88.3%0.003%
5/7/2026 Swiss National Bank63,700$7.52M0.0%+0.5%0.194%
5/6/2026 Jennison Associates LLC137,040$16.17M0.0%-1.5%0.417%
5/6/2026 Future Fund LLC18,878$2.23M0.8%+27.8%0.057%
5/6/2026 Assetmark Inc.821$97K0.0%+30.1%0.002%
5/6/2026 Bessemer Group Inc.2,432$286K0.0%-99.2%0.007%
5/6/2026 Allspring Global Investments Holdings LLC467,113$55.22M0.1%+14.7%1.422%
5/5/2026 Hillsdale Investment Management Inc.34,950$4.13M0.1%+2.6%0.106%
5/4/2026 Principal Financial Group Inc.53,476$6.31M0.0%-23.0%0.163%
5/1/2026 Fifth Third Bancorp15,452$1.82M0.0%+17,068.9%0.047%
4/28/2026 Stephens Investment Management Group LLC561,530$66.27M0.9%+8.1%1.709%
4/25/2026 Strs Ohio1,200$142K0.0%-77.8%0.004%
4/25/2026 Keybank National Association OH1,847$218K0.0%-4.8%0.006%
4/24/2026 Peregrine Capital Management LLC65,875$7.78M0.3%+15.8%0.201%
4/23/2026 Kampmann Melissa S.22,010$2.60M2.1%-2.7%0.068%
4/22/2026 MRA Advisory Group3,210$379K0.2%+15.9%0.010%
4/22/2026 Pictet Asset Management Holding SA5,492$648K0.0%+11.8%0.017%
4/20/2026 Assenagon Asset Management S.A.270,221$31.89M0.0%+20.0%0.836%
4/17/2026 Values First Advisors Inc.5,937$701K0.4%+3.0%0.018%
4/16/2026 SG Americas Securities LLC5,870$693K0.0%-47.6%0.018%
3/17/2026 Rockefeller Capital Management L.P.1,361$241K0.0%+89.8%0.004%
3/9/2026 Corient Private Wealth LLC1,764$313K0.0%+12.1%0.005%
3/6/2026 Hsbc Holdings PLC17,024$3.05M0.0%-39.7%0.053%
2/25/2026 MidFirst Bank1,326$235K0.0%N/A0.004%
2/19/2026 Corient Private Wealth LLC1,764$313K0.0%+12.1%0.005%
2/18/2026 Virtue Capital Management LLC5,349$937K0.0%-9.8%0.017%
2/18/2026 Vident Advisory LLC2,292$407K0.0%-6.1%0.007%
2/18/2026 Mackenzie Financial Corp347,304$61.90M0.1%-23.7%1.078%
2/18/2026 Fuller & Thaler Asset Management Inc.639,423$113.46M0.4%+7.4%1.985%
2/18/2026 XTX Topco Ltd4,816$855K0.0%N/A0.015%
2/18/2026 Wellington Management Group LLP408,256$72.44M0.0%-3.4%1.267%
2/18/2026 RTW Investments LP1,181,990$209.73M2.1%N/A3.669%
2/18/2026 Occudo Quantitative Strategies LP16,484$2.93M0.2%+103.8%0.051%
2/18/2026 Ophir Asset Management Pty Ltd127,697$22.66M2.5%+25.7%0.396%
2/18/2026 Perceptive Advisors LLC108,000$19.16M0.3%-12.2%0.335%
2/18/2026 Millennium Management LLC826,376$146.63M0.1%+197.4%2.565%
2/18/2026 Man Group plc56,202$9.97M0.0%-96.8%0.174%
2/18/2026 Gotham Asset Management LLC2,017$358K0.0%-90.5%0.006%
2/18/2026 Engineers Gate Manager LP77,119$13.68M0.2%-9.5%0.239%
2/18/2026 Cinctive Capital Management LP4,974$883K0.0%-82.3%0.015%
2/18/2026 Balyasny Asset Management L.P.167,274$29.68M0.0%N/A0.519%
2/18/2026 Boothbay Fund Management LLC1,304$231K0.0%N/A0.004%
2/17/2026 Freestone Grove Partners LP63,140$11.20M0.1%N/A0.196%
2/17/2026 KCM Capital Inc37,000$6.57M1.3%N/A0.115%
2/17/2026 Schonfeld Strategic Advisors LLC11,258$2.00M0.0%+4.4%0.035%
2/17/2026 AQR Capital Management LLC40,165$7.13M0.0%+27.8%0.125%
2/17/2026 EFG International AG26,643$4.73M0.1%N/A0.083%
2/17/2026 Jain Global LLC54,844$9.73M0.0%-58.2%0.170%
2/17/2026 First Light Asset Management LLC153,871$27.30M2.1%-0.8%0.478%
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2/17/2026 Laird Norton Wetherby Trust Company LLC6,824$1.21M0.0%N/A0.021%
2/17/2026 Kovack Advisors Inc.1,171$208K0.0%N/A0.004%
2/17/2026 Trexquant Investment LP78,653$13.96M0.1%+217.6%0.244%
2/17/2026 Amundi33,410$5.93M0.0%-40.0%0.104%
2/17/2026 Jump Financial LLC20,530$3.64M0.0%+4.2%0.064%
2/17/2026 Price T Rowe Associates Inc. MD502,120$89.10M0.0%+47.8%1.558%
2/17/2026 Osaic Holdings Inc.1,649$293K0.0%-84.6%0.005%
2/17/2026 Integral Health Asset Management LLC130,000$23.07M1.1%+100.0%0.403%
2/17/2026 Adage Capital Partners GP L.L.C.125,000$22.18M0.0%+150.0%0.388%
2/17/2026California State Teachers Retirement System30,561$5.42M0.0%+1.5%0.095%


IRTC Institutional Ownership - Frequently Asked Questions

During the previous two years, 327 institutional investors and hedge funds held shares of iRhythm Technologies. The most heavily invested institutionals were Tudor Investment Corp ET AL ($3.44B), Vanguard Group Inc. ($587.42M), Sands Capital Management LLC ($301.59M), Artisan Partners Limited Partnership ($268.29M), Capital Research Global Investors ($210.22M), RTW Investments LP ($209.73M), and Geode Capital Management LLC ($152.34M).Learn more on iRhythm Technologies' institutional investors.

Of the 286 institutional investors that purchased iRhythm Technologies' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Tudor Investment Corp ET AL ($20M), RTW Investments LP ($1.18M), Millennium Management LLC ($888.05K), UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC ($828.06K), Arrowstreet Capital Limited Partnership ($606.97K), Fuller & Thaler Asset Management Inc. ($606.59K), and Eventide Asset Management LLC ($466.26K).

Institutional investors have bought a total of 26,359,910 shares in the last 24 months. This purchase volume represents approximately $4.51B in transactions.

Of the 117 institutional investors that sold iRhythm Technologies' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Universal Beteiligungs und Servicegesellschaft mbH ($6.55M), Man Group plc ($1.70M), RWC Asset Management LLP ($1.69M), Artisan Partners Limited Partnership ($1.23M), Sands Capital Management LLC ($1.22M), Deutsche Bank AG ($844.88K), and Bessemer Group Inc. ($566.76K).

Institutional investors have sold a total of 17,432,146 shares in the last 24 months. This volume of shares sold represents approximately $3.02B in transactions.



Institutional ownership data for NASDAQ:IRTC is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/22/2026. New 13F filings are added each quarter as they're published.
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