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iRhythm Technologies (IRTC) Institutional Ownership

iRhythm Technologies logo
$110.37 -0.68 (-0.61%)
Closing price 04:00 PM Eastern
Extended Trading
$110.40 +0.03 (+0.03%)
As of 07:50 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for iRhythm Technologies (NASDAQ:IRTC)

Number of
Institutional Buyers
(last 12 months)
172
Total
Institutional Inflows
(last 12 months)
$4.49B
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

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/2/2026Versant Capital Management Inc221$25K0.0%+123.2%0.001%
9/29/2026Cim Investment Management Inc.4,824$574K0.1%+7.4%0.015%
9/9/2026First Light Asset Management LLC167,092$19.88M1.2%-0.6%0.507%
9/9/2026Engineers Gate Manager LP30,418$3.62M0.0%-38.3%0.092%
9/9/2026Squarepoint Ops LLC71,862$8.55M0.0%+1,065.8%0.218%
9/8/2026Nykredit A S1,982$236K0.0%N/A0.006%
8/26/2026Amundi56,534$6.73M0.0%+14.0%0.172%
8/25/2026VIRGINIA RETIREMENT SYSTEMS ET Al8,150$969K0.0%N/A0.025%
8/22/2026Kampmann Melissa S.21,012$2.50M1.9%-4.5%0.064%
8/21/2026Braidwell LP654,262$77.82M2.9%+7.2%1.985%
8/21/2026Nykredit A S1,982$236K0.0%N/A0.006%
8/20/2026Headlands Technologies LLC4,886$581K0.1%+6.7%0.015%
8/20/2026Two Sigma Securities LLC3,265$388K0.0%+20.9%0.010%
8/19/2026Hsbc Holdings PLC4,473$528K0.0%N/A0.014%
8/19/2026Wellington Management Group LLP88,257$10.50M0.0%-2.4%0.268%
8/14/2026Ancora Advisors LLC3,230$384K0.0%N/A0.010%
7/10/2026Handelsbanken Fonder AB12,239$1.46M0.0%+17.2%0.037%
7/9/2026Hennion & Walsh Asset Management Inc.3,521$419K0.0%-55.4%0.011%
7/8/2026Assenagon Asset Management S.A.22,161$2.64M0.0%-91.8%0.067%
7/7/2026Harbor Investment Advisory LLC420$50K0.0%N/A0.001%
5/29/2026Perceptive Advisors LLC105,026$12.40M0.2%-2.8%0.320%
5/22/2026Segall 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%
5/19/2026Bank of America Corp DE432,539$51.05M0.0%-41.7%1.316%
5/18/2026Amundi49,575$5.85M0.0%+48.4%0.151%
5/18/2026California State Teachers Retirement System37,324$4.41M0.0%+22.1%0.114%
5/18/2026Rock Springs Capital Management LP261,750$30.89M1.8%+11.4%0.797%
5/16/2026The Manufacturers Life Insurance Company390,577$46.10M0.0%+99.2%1.189%
5/16/2026Quantinno Capital Management LP18,621$2.20M0.0%+1,172.8%0.057%
5/16/2026First Light Asset Management LLC168,116$19.84M1.8%+9.3%0.512%
5/16/2026Castleark Management LLC27,193$3.21M0.1%-45.8%0.083%
5/15/2026Granahan Investment Management LLC96,022$11.33M0.5%+567.9%0.292%
5/15/2026Entropy Technologies LP10,652$1.26M0.1%+59.2%0.032%
5/14/2026Renaissance Technologies LLC53,800$6.35M0.0%-48.2%0.164%
5/14/2026Arrowstreet Capital Limited Partnership582,879$68.79M0.0%-4.0%1.774%
5/14/2026Inceptionr LLC5,420$640K0.2%+58.2%0.016%
5/14/2026Group One Trading LLC1,749$206K0.0%N/A0.005%
5/13/2026KCM Capital Inc30,000$3.54M0.6%-18.9%0.091%
5/13/2026First Trust Advisors LP47,589$5.62M0.0%-21.7%0.145%
5/8/2026PNC Financial Services Group Inc.1,480$175K0.0%-55.2%0.005%
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5/7/2026WCM Investment Management LLC108,078$12.34M0.0%+47.5%0.329%
5/7/2026KBC Group NV870$103K0.0%-88.3%0.003%
5/7/2026Swiss National Bank63,700$7.52M0.0%+0.5%0.194%
5/6/2026Jennison Associates LLC137,040$16.17M0.0%-1.5%0.417%
5/6/2026Future Fund LLC18,878$2.23M0.8%+27.8%0.057%
5/6/2026Assetmark Inc.821$97K0.0%+30.1%0.002%
5/6/2026Bessemer Group Inc.2,432$286K0.0%-99.2%0.007%
5/6/2026Allspring Global Investments Holdings LLC467,113$55.22M0.1%+14.7%1.422%
5/5/2026Hillsdale Investment Management Inc.34,950$4.13M0.1%+2.6%0.106%
5/4/2026Principal Financial Group Inc.53,476$6.31M0.0%-23.0%0.163%
5/1/2026Fifth Third Bancorp15,452$1.82M0.0%+17,068.9%0.047%
4/28/2026Stephens Investment Management Group LLC561,530$66.27M0.9%+8.1%1.709%
4/25/2026Strs Ohio1,200$142K0.0%-77.8%0.004%
4/25/2026Keybank National Association OH1,847$218K0.0%-4.8%0.006%
4/24/2026Peregrine Capital Management LLC65,875$7.78M0.3%+15.8%0.201%
4/23/2026Kampmann Melissa S.22,010$2.60M2.1%-2.7%0.068%
4/22/2026MRA Advisory Group3,210$379K0.2%+15.9%0.010%
4/22/2026Pictet Asset Management Holding SA5,492$648K0.0%+11.8%0.017%
4/20/2026Assenagon Asset Management S.A.270,221$31.89M0.0%+20.0%0.836%
4/17/2026Values First Advisors Inc.5,937$701K0.4%+3.0%0.018%
4/16/2026SG Americas Securities LLC5,870$693K0.0%-47.6%0.018%
3/17/2026Rockefeller Capital Management L.P.1,361$241K0.0%+89.8%0.004%
3/9/2026Corient Private Wealth LLC1,764$313K0.0%+12.1%0.005%
3/6/2026Hsbc Holdings PLC17,024$3.05M0.0%-39.7%0.053%
2/25/2026MidFirst Bank1,326$235K0.0%N/A0.004%
2/19/2026Corient Private Wealth LLC1,764$313K0.0%+12.1%0.005%
2/18/2026Virtue Capital Management LLC5,349$937K0.0%-9.8%0.017%
2/18/2026Vident Advisory LLC2,292$407K0.0%-6.1%0.007%
2/18/2026Mackenzie Financial Corp347,304$61.90M0.1%-23.7%1.078%
2/18/2026Fuller & Thaler Asset Management Inc.639,423$113.46M0.4%+7.4%1.985%
2/18/2026XTX Topco Ltd4,816$855K0.0%N/A0.015%
2/18/2026Wellington Management Group LLP408,256$72.44M0.0%-3.4%1.267%
2/18/2026RTW Investments LP1,181,990$209.73M2.1%N/A3.669%
2/18/2026Occudo Quantitative Strategies LP16,484$2.93M0.2%+103.8%0.051%
2/18/2026Ophir Asset Management Pty Ltd127,697$22.66M2.5%+25.7%0.396%
2/18/2026Perceptive Advisors LLC108,000$19.16M0.3%-12.2%0.335%
2/18/2026Millennium Management LLC826,376$146.63M0.1%+197.4%2.565%
2/18/2026Man Group plc56,202$9.97M0.0%-96.8%0.174%
2/18/2026Gotham Asset Management LLC2,017$358K0.0%-90.5%0.006%
2/18/2026Engineers Gate Manager LP77,119$13.68M0.2%-9.5%0.239%
2/18/2026Cinctive Capital Management LP4,974$883K0.0%-82.3%0.015%
2/18/2026Balyasny Asset Management L.P.167,274$29.68M0.0%N/A0.519%
2/18/2026Boothbay Fund Management LLC1,304$231K0.0%N/A0.004%
2/17/2026Freestone Grove Partners LP63,140$11.20M0.1%N/A0.196%
2/17/2026KCM Capital Inc37,000$6.57M1.3%N/A0.115%
2/17/2026Schonfeld Strategic Advisors LLC11,258$2.00M0.0%+4.4%0.035%
2/17/2026AQR Capital Management LLC40,165$7.13M0.0%+27.8%0.125%
2/17/2026EFG International AG26,643$4.73M0.1%N/A0.083%
2/17/2026Jain Global LLC54,844$9.73M0.0%-58.2%0.170%
2/17/2026First Light Asset Management LLC153,871$27.30M2.1%-0.8%0.478%
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2/17/2026Laird Norton Wetherby Trust Company LLC6,824$1.21M0.0%N/A0.021%
2/17/2026Kovack Advisors Inc.1,171$208K0.0%N/A0.004%
2/17/2026Trexquant Investment LP78,653$13.96M0.1%+217.6%0.244%
2/17/2026Amundi33,410$5.93M0.0%-40.0%0.104%
2/17/2026Jump Financial LLC20,530$3.64M0.0%+4.2%0.064%
2/17/2026Price T Rowe Associates Inc. MD502,120$89.10M0.0%+47.8%1.558%
2/17/2026Osaic Holdings Inc.1,649$293K0.0%-84.6%0.005%
2/17/2026Integral Health Asset Management LLC130,000$23.07M1.1%+100.0%0.403%
2/17/2026Adage 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, 320 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 281 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 26,228,764 shares in the last 24 months. This purchase volume represents approximately $4.49B 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 17,452,021 shares in the last 24 months. This volume of shares sold represents approximately $3.02B in transactions.


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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 10/2/2026. New 13F filings are added each quarter as they're published.
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