iRhythm Technologies Inc (IRTC) Ownership

178.37 ↓2.98 (-1.64%)
As of December 31, 1969, 7:00pm EST.

Institutional Ownership

Vanguard Group Inc is the biggest individual institutional holder of iRhythm Technologies Inc (IRTC), owning a total of 3.2 million shares. Combined, the top 43 institutional holders of IRTC own 113.29% of the company with a total of 36 million shares.

In the latest ownership report on June 30th 2025, the top 43 institutional holders decreased their combined ownership of IRTC by 1.7 million shares. 7 institutions bought 521,656 total additional shares and increased their ownership by an average of 23.75%. However 13 institutions sold 2,178,675 total shares and decreased their ownership by an average of 14.46%.

Overall this is a negative sign as the number of shares owned by the top 20 institutional holders of iRhythm Technologies decreased by a net total of -1,657,019 in the latest quarter.

Institution Ownership Chart

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Latest Institutional Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Vanguard Group Inc10.071%4.101%3,235,660127,4662025-06-30
Sands Capital Management, LLC9.075%-3.338%2,915,527-100,6802025-06-30
BlackRock Inc8.558%1.712%2,749,63546,2902025-06-30
Artisan Partners Limited Partnership8.531%-2.610%2,740,841-73,4392025-06-30
Capital Research Global Investors4.690%-31.588%1,506,864-695,7582025-06-30
State Street Corp2.703%-5.357%868,525-49,1632025-06-30
Geode Capital Management, LLC2.388%2.261%767,33616,9672025-06-30
Blair William & Co2.301%-6.414%739,331-50,6682025-06-30
BNP Paribas Investment Partners SA2.287%-16.503%734,624-145,1922025-06-30
Mackenzie Investments2.272%-36.865%729,813-426,1412025-06-30
Eventide Asset Management, LLC2.153%-6.552%691,573-48,4892025-06-30
Champlain Investment Partners, LLC2.058%-19.636%661,232-161,5592025-06-30
UBS Asset Mgmt Americas Inc1.891%-32.714%607,652-295,4322025-06-30
Fuller & Thaler Asset Management Inc1.826%13.167%586,47868,2382025-06-30
Bessemer Group Inc1.772%-0.846%569,196-4,8572025-06-30
JPMorgan Chase & Co1.753%0.122%563,2016872025-06-30
Stephens Inv Mgmt Group LLC1.721%6.211%552,91632,3342025-06-30
Allspring Global Investments Holdings, LLC1.352%-16.250%434,343-84,2752025-06-30
FMR Inc1.308%-9.288%420,201-43,0222025-06-30
Wellington Management Company LLP1.230%138.657%395,316229,6742025-06-30

Top Institutions

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Vanguard Group Inc10.071%4.101%3,235,660127,4662025-06-30
Sands Capital Management, LLC9.075%-3.338%2,915,527-100,6802025-06-30
BlackRock Inc8.558%1.712%2,749,63546,2902025-06-30
Artisan Partners Limited Partnership8.531%-2.610%2,740,841-73,4392025-06-30
Capital Research Global Investors4.690%-31.588%1,506,864-695,7582025-06-30
AllianceBernstein L.P.3.874%-4.371%1,212,471-55,4252024-09-30
Holocene Advisors, LP3.331%13.500%1,042,670124,0212024-06-30
State Street Corp2.703%-5.357%868,525-49,1632025-06-30
LTS One Management LP2.528%-14.393%774,748-130,2522023-09-30
State Street Corporation2.463%-1.067%769,233-8,2942024-03-31
Geode Capital Management, LLC2.388%2.261%767,33616,9672025-06-30
Blair William & Co2.301%-6.414%739,331-50,6682025-06-30
Citadel Advisors Llc2.454%85.025%739,000339,5942022-06-30
BNP Paribas Investment Partners SA2.287%-16.503%734,624-145,1922025-06-30
Mackenzie Investments2.272%-36.865%729,813-426,1412025-06-30
Morgan Stanley - Brokerage Accounts2.265%91.524%709,012338,8182024-06-30
Eventide Asset Management, LLC2.153%-6.552%691,573-48,4892025-06-30
Amvescap Plc.2.191%17.419%685,722101,7242024-06-30
Champlain Investment Partners, LLC2.058%-19.636%661,232-161,5592025-06-30
Westfield Capital Management Company, L.P.1.921%-19.363%617,078-148,1752025-03-31
UBS Asset Mgmt Americas Inc1.891%-32.714%607,652-295,4322025-06-30
Fuller & Thaler Asset Management Inc1.826%13.167%586,47868,2382025-06-30
NORGES BANK1.908%73.893%581,479247,0902022-12-31
Bessemer Group Inc1.772%-0.846%569,196-4,8572025-06-30
JPMorgan Chase & Co1.753%0.122%563,2016872025-06-30
BRAIDWELL LP1.732%-21.123%556,391-149,0002025-03-31
Stephens Inv Mgmt Group LLC1.721%6.211%552,91632,3342025-06-30
Westfield Capital Management Company, LP1.688%-13.264%528,291-80,7892024-09-30
Slate Path Capital LP1.599%0.000%510,50002024-12-31
Bank of New York Mellon Corp1.540%23.212%491,48592,5912024-12-31
Partner Fund Management LP1.567%0.000%485,46802023-09-30
HHG PLC1.572%-0.034%473,197-1602022-09-30
Lord, Abbett & Co LLC1.552%67.479%467,439188,3362022-09-30
Credit Suisse First Boston (CSFB)1.456%-4.070%454,827-19,2962024-03-31
Allspring Global Investments Holdings, LLC1.352%-16.250%434,343-84,2752025-06-30
Point72 Asset Management, L.P.1.308%0.000%420,303420,3032025-03-31
FMR Inc1.308%-9.288%420,201-43,0222025-06-30
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC1.335%2,594,210.000%415,089415,0732023-12-31
Bank of America Corp1.315%16.213%411,55157,4162024-09-30
Millennium Management LLC1.244%563.842%399,746339,5292025-03-31
Wellington Management Company LLP1.230%138.657%395,316229,6742025-06-30
T. Rowe Price Associates, Inc.1.261%-26.907%392,454-144,4712023-12-31
Fiera Capital Corporation1.250%-2.577%388,913-10,2872024-03-31

Mutual Fund Ownership

Sands Capital Global Growth Equity is the biggest individual fund holder of iRhythm Technologies Inc (IRTC), owning a total of 2.7 million shares. Combined, the top 49 mutual fund holders of IRTC own 85.77% of the company with a total of 27 million shares.

In the latest ownership report on August 31st 2025, the top 49 fund holders increased their combined ownership of IRTC by 38 thousand shares. 1 funds bought 3,290 total additional shares and increased their ownership by an average of 0.76%. However 1 funds sold 40,819 total shares and decreased their ownership by an average of 10.33%.

Overall this is a negative sign as the number of shares owned by the top 20 mutual funds holding iRhythm Technologies decreased by a net total of -37,529 in the latest report.

Mutual Funds Chart

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Latest Mutual Fund Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
iShares Russell 2000 ETF2.397%0.000%770,00202025-08-31
Bridge Builder Small/Mid Cap Growth1.353%0.762%434,8323,2902025-08-31
Champlain Small Company Fund, LLC1.103%-10.326%354,468-40,8192025-08-31

Top Mutual Funds

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Sands Capital Global Growth Equity8.250%-3.498%2,650,371-96,0762025-06-30
Sands Global Growth Eqty7.262%-0.324%2,212,627-7,2002023-03-31
Vanguard US Total Market Shares ETF3.208%7.308%1,007,59368,6232024-09-30
Vanguard Total Stock Mkt Idx Inv3.132%-2.598%1,006,345-26,8382025-07-31
Canada Life US Small-Mid Cap Growth A3.139%-3.933%1,002,117-41,0252025-01-31
Vanguard Instl Ttl Stck Mkt Idx Tr2.888%1.452%885,04812,6662023-03-31
American Funds SMALLCAP World A2.470%-46.864%793,700-700,0002025-06-30
Vanguard Small Cap Index2.411%-0.766%774,596-5,9782025-07-31
iShares Russell 2000 ETF2.397%0.000%770,00202025-08-31
Capital Group New Economy Comp1.946%0.000%625,21802025-06-30
American Funds New Economy A1.946%0.000%625,21802025-06-30
Artisan Mid Cap Investor1.940%-4.313%623,375-28,0972025-06-30
Artisan U.S. Mid-Cap Growth1.940%-4.313%623,375-28,0972025-06-30
Canada Life US Small-Mid Cap Growth F1.717%-5.329%551,661-31,0502025-06-30
Vanguard Institutional Extnd Mkt Idx Tr1.532%0.940%492,2294,5822025-06-30
Eventide Gilead N1.445%0.000%464,25202025-06-30
Sands Capital Global Growth A USD Acc1.431%-23.468%459,612-140,9402025-07-31
Vanguard Small Cap Growth Index Inv1.357%-0.356%435,814-1,5562025-07-31
Bridge Builder Small/Mid Cap Growth1.353%0.762%434,8323,2902025-08-31
Janus Henderson US SMID Cap Growth1.422%0.000%433,24102023-03-31
Janus Henderson Triton D1.422%0.000%433,24102023-03-31
JPM Global Healthcare C (acc) USD1.355%0.000%419,61302024-01-31
Vanguard Extended Market Index Investor1.367%0.681%417,8832,8282023-08-31
Fidelity® Select Health Care1.308%0.000%400,00002023-08-31
Fidelity® Select Medical Tech and Devcs1.305%-20.000%400,000-100,0002023-09-30
Stephens SMID Select Growth1.243%6.817%399,40925,4902025-06-30
FullerThaler Behavioral Small-Cap Growth1.218%8.140%391,38029,4602025-06-30
Old Westbury Large Cap Strategies1.213%0.000%389,58302025-04-30
Westfield Capital Mgt Co Sm-Cap Gr Eq1.211%54.552%380,264134,2212024-12-31
Harbor Small Cap Growth Instl1.211%17.727%380,26457,2602024-12-31
AB Small Cap Growth A1.210%-3.433%378,584-13,4602024-09-30
FullerThaler Behavioral Sm-Cp Gr R61.175%1.780%377,5006,6002025-07-31
Champlain Small Company Fund, LLC1.103%-10.326%354,468-40,8192025-08-31
Vanguard Explorer Inv1.101%23.182%353,83766,5892025-06-30
BNY Mellon Sm/Md Cp Gr I1.129%-4.645%351,089-17,1022024-03-31
Fidelity Advisor® Health Care I1.132%0.000%345,00002023-04-30
T. Rowe Price Health Sciences1.132%-5.357%340,910-19,2962022-09-30
Lord Abbett Developing Growth A1.123%-16.511%338,151-66,8752022-09-30
Select Medical Tech and Devcs1.077%-17.500%330,000-70,0002023-10-31
CS (Lux) Digital Health Equity SB USD1.061%-1.493%330,000-5,0002024-05-31
BNP Paribas Health Cr Innovtr Cl Cap1.021%-0.013%322,489-432025-02-28
Fidelity Small Cap Index1.019%0.424%318,8191,3452024-10-31
JPMorgan Small Cap Growth A0.989%-18.685%309,663-71,1552024-11-30
Fidelity® Small Cap Index0.965%2.794%295,7168,0382023-10-31
Champlain Small Company Adv0.943%25.532%295,00060,0002024-06-30
UBS (Lux) Digital Health Equity SB USD0.911%-1.724%285,000-5,0002024-10-31
iShares Russell 2000 Growth ETF0.887%5.756%275,83915,0132024-06-28
Fiera SMID Growth0.902%-1.884%272,461-5,2312022-12-31
AB Discovery Growth A0.860%-7.373%258,810-20,6002022-11-30

Discussions

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delaina10/5/25 09:31pm

$IRTC we always finish green after a red week. Less go!

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DivorceTiramisu5/9/25 02:40am

$IRTC tomorrow im gunna have a fucking good day regardless if its red or green. Red is buy green is hodl.

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chickenEggs11/30/24 06:12am

$IRTC glad I didn’t chase this isn’t moving anytime soon with all of those call options here lol

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