Irhythm HoldingsIRTC
13F holders, Q3 2025 (September 30)338holders +35
62new positions
29sold out
7famous investors
$171.79avg. 13F price*
At the end of Q3 2025, 338 institutions reported holding Irhythm Holdings Inc. (IRTC) in their 13F filings, up 35 from Q2 2025. 62 opened new positions and 29 sold out. The largest holders were Vanguard Group Inc. ($557.3M), BlackRock, Inc. ($494.6M) and Artisan Partners Limited Partnership ($441.6M). 7 famous investors held it, including Steve Cohen (0.1% of Point72 Asset Management's portfolio), David E. Shaw (0.1% of D. E. Shaw & Co.'s portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Irhythm Holdings Inc.
- CUSIP
- 450056106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 62 | $104.8M |
| Exits | 29 | $60.1M |
All 13F filers, Q2 2025 → Q3 2025: 3,668,507 shares bought and 4,353,161 shares sold, net −684,654 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 338 holders
| Vanguard Group Inc. | 0.01% | Add +0.1% | 3,240,099 | $557.3M |
| BlackRock, Inc. | 0.01% | Add +4.6% | 2,875,476 | $494.6M |
| Artisan Partners Limited Partnership | 0.64% | Reduce -6.3% | 2,567,513 | $441.6M |
| Sands Capital Management, LLC | 1.06% | Reduce -23.3% | 2,236,110 | $384.6M |
| Capital Research Global Investors | 0.04% | Reduce -21.4% | 1,183,736 | $203.6M |
| State Street Corp. | 0.01% | Reduce -2.4% | 847,878 | $145.8M |
| Geode Capital Management, LLC | 0.01% | Add +3.0% | 790,104 | $135.9M |
| Blair William & Co. | 0.34% | Add +0.2% | 740,721 | $127.4M |
| Eventide Asset Management, LLC | 1.96% | Reduce -0.0% | 691,512 | $118.9M |
| FMR LLC | 0.01% | Add +48.5% | 624,095 | $107.3M |
| Fuller & Thaler Asset Management, Inc. | 0.35% | Add +1.5% | 595,248 | $102.4M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.25% | Reduce -22.4% | 570,254 | $98.1M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.02% | Reduce -6.2% | 570,062 | $98.0M |
| Arrowstreet Capital, Limited Partnership | 0.06% | Add +6415.4% | 541,039 | $93.1M |
| Stephens Investment Management Group LLC | 1.16% | Reduce -6.0% | 519,958 | $89.4M |
| Holocene Advisors, LP | 0.19% | Add +51.2% | 473,280 | $81.4M |
| Mackenzie Financial Corp. | 0.09% | Reduce -37.6% | 455,261 | $78.3M |
| JPMorgan Chase & Co. | 0.00% | Reduce -22.0% | 439,438 | $75.6M |
| Bessemer Group Inc. | 0.11% | Reduce -23.7% | 434,235 | $74.7M |
| Wellington Management Group LLP | 0.01% | Add +6.9% | 422,662 | $72.7M |
| Allspring Global Investments Holdings, LLC | 0.11% | Reduce -4.3% | 415,517 | $69.6M |
| Invesco Ltd. | 0.01% | Add +327.5% | 403,137 | $69.3M |
| Bank of America Corp. | 0.00% | Add +8.1% | 375,788 | $64.6M |
| Champlain Investment Partners, LLC | 0.47% | Reduce -44.7% | 365,627 | $62.9M |
| Point72 Asset Management | 0.14% | Add +8.1% | 348,112 | $59.9M |
| T. Rowe Price Associates Inc. | 0.01% | Add +1194.0% | 339,641 | $58.4M |
| D. E. Shaw & Co. | 0.05% | Add +36.0% | 337,125 | $58.0M |
| Polar Capital Holdings Plc | 0.28% | Add +24782.1% | 335,908 | $57.8M |
| Westfield Capital Management Co. LP | 0.23% | Add +11.5% | 323,980 | $55.7M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -18.1% | 323,257 | $55.6M |
| Fred Alger Management, LLC | 0.21% | Reduce -1.7% | 320,099 | $55.1M |
| Northern Trust Corp. | 0.01% | Add +1.8% | 294,371 | $50.6M |
| Loomis Sayles & Co. L P | 0.06% | Add +13.3% | 289,568 | $49.8M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +5.6% | 286,662 | $49.3M |
| Lord, Abbett & Co. LLC | 0.15% | Reduce -1.9% | 282,126 | $48.5M |
| Millennium Management | 0.04% | Reduce -17.4% | 277,857 | $47.8M |
| Sei Investments Co. | 0.05% | Reduce -15.0% | 246,966 | $42.5M |
| Rock Springs Capital Management LP | 2.37% | Reduce -3.1% | 235,000 | $40.4M |
| Braidwell LP | 1.57% | Reduce -24.7% | 225,845 | $38.8M |
| Driehaus Capital Management LLC | 0.27% | Add +35.1% | 218,423 | $37.6M |
| Nuveen, LLC | 0.01% | Add +1.2% | 216,648 | $37.3M |
| Man Group plc | 0.07% | Reduce -22.9% | 206,422 | $35.5M |
| Deutsche Bank AG | 0.01% | Add +3.8% | 199,543 | $34.3M |
| Manufacturers Life Insurance Company, The | 0.03% | Reduce -0.1% | 195,348 | $33.6M |
| Next Century Growth Investors LLC | 2.37% | Reduce -15.9% | 189,082 | $32.5M |
| Barclays PLC | 0.01% | Reduce -13.3% | 186,753 | $32.1M |
| Squarepoint Ops LLC | 0.07% | Add +12.8% | 181,035 | $31.1M |
| Raymond James Financial Inc. | 0.01% | Add +45.2% | 169,137 | $29.1M |
| New York State Common Retirement Fund | 0.04% | Reduce -1.5% | 167,447 | $28.8M |
| Qube Research & Technologies Ltd | 0.04% | Add +251.8% | 166,862 | $28.7M |
| Schroder Investment Management Group | 0.02% | Reduce -25.8% | 164,066 | $27.8M |
| Massachusetts Financial Services Co. | 0.01% | Add +27.0% | 160,550 | $27.6M |
| Jennison Associates LLC | 0.02% | Reduce -47.1% | 157,276 | $27.0M |
| Citigroup Inc. | 0.02% | Reduce -6.2% | 156,420 | $26.9M |
| First Light Asset Management, LLC | 2.51% | Reduce -17.2% | 155,099 | $26.7M |
| Morgan Stanley | 0.00% | Reduce -12.9% | 154,871 | $26.6M |
| Royal Bank of Canada | 0.00% | Add +77.4% | 137,886 | $23.7M |
| Ameriprise Financial Inc. | 0.01% | Add +1.5% | 137,309 | $23.6M |
| BNP Paribas Financial Markets | 0.02% | Reduce -27.5% | 132,899 | $22.9M |
| Jain Global LLC | 0.31% | New | 131,092 | $22.5M |
| Segall Bryant & Hamill, LLC | 0.29% | Reduce -8.7% | 125,298 | $21.6M |
| Perceptive Advisors LLC | 0.62% | New | 123,000 | $21.2M |
| Renaissance Technologies | 0.03% | Reduce -14.0% | 121,400 | $20.9M |
| Ophir Asset Management Pty Ltd | 2.16% | Reduce -49.7% | 101,561 | $17.5M |
| Bank of New York Mellon Corp | 0.00% | Reduce -71.6% | 99,162 | $17.1M |
| Walleye Capital LLC | 0.15% | Add +29.9% | 95,912 | $16.5M |
| Jane Street Group, LLC | 0.02% | Add +4.8% | 92,438 | $15.9M |
| Frontier Capital Management Co. LLC | 0.14% | Reduce -16.1% | 89,230 | $15.3M |
| Cubist Systematic Strategies, LLC | 0.22% | Reduce -19.4% | 89,220 | $15.3M |
| Prudential Financial Inc. | 0.02% | Add +88.8% | 86,528 | $14.9M |
| Engineers Gate Manager LP | 0.17% | Add +13.8% | 85,211 | $14.7M |
| Oberweis Asset Management Inc./ | 0.53% | No change | 81,200 | $14.0M |
| Principal Financial Group Inc. | 0.01% | Add +1.2% | 80,136 | $13.8M |
| C WorldWide Group Holding A/S | 0.21% | No change | 80,000 | $13.8M |
| Algert Global LLC | 0.23% | Add +166.1% | 79,730 | $13.7M |
| Victory Capital Management Inc. | 0.01% | Add +30.1% | 77,952 | $13.4M |
| Assenagon Asset Management S.A. | 0.02% | New | 77,876 | $13.4M |
| M&G PLC | 0.07% | Add +3.3% | 76,868 | $13.2M |
| WCM Investment Management, LLC | 0.03% | Add +0.1% | 77,261 | $13.1M |
| Federated Hermes, Inc. | 0.02% | Add +45.4% | 70,401 | $12.1M |
| TimesSquare Capital Management, LLC | 0.17% | Reduce -6.1% | 67,317 | $11.6M |
| Integral Health Asset Management, LLC | 0.81% | Add +62.5% | 65,000 | $11.2M |
| PFM Health Sciences, LP | 0.97% | Reduce -26.3% | 64,998 | $11.2M |
| Swiss National Bank | 0.01% | Add +3.2% | 61,900 | $10.6M |
| State of Wisconsin Investment Board | 0.02% | Reduce -12.1% | 60,224 | $10.4M |
| First Trust Advisors LP | 0.01% | Add +4.5% | 58,739 | $10.1M |
| Castleark Management LLC | 0.28% | Add +21.2% | 58,393 | $10.0M |
| Peregrine Capital Management LLC | 0.30% | Reduce -24.1% | 58,102 | $10.0M |
| Amundi | 0.00% | Reduce -8.1% | 55,678 | $9.8M |
| UBS Group AG | 0.00% | Add +49.6% | 52,783 | $9.1M |
| Macquarie Group Ltd. | 0.01% | Reduce -10.6% | 51,421 | $8.8M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | Reduce -4.8% | 51,316 | $8.8M |
| Adage Capital Partners Gp, L.L.C. | 0.01% | Reduce -33.3% | 50,000 | $8.6M |
| Silvercrest Asset Management Group LLC | 0.05% | Reduce -2.6% | 47,837 | $8.2M |
| Rhumbline Advisers | 0.01% | Reduce -1.9% | 47,579 | $8.2M |
| Russell Investments Group, Ltd. | 0.01% | Add +93.4% | 46,894 | $8.1M |
| Legal & General Group Plc | 0.00% | Reduce -4.5% | 42,005 | $7.2M |
| Steadfast Capital Management LP | 0.12% | New | 39,700 | $6.8M |
| Hillsdale Investment Management Inc. | 0.20% | Add +2.0% | 38,250 | $6.6M |
| Alliancebernstein L.P. | 0.00% | Add +0.3% | 37,489 | $6.4M |
"% of holder's portfolio" is IRTC's weight in each manager's 13F, not the share of Irhythm Holdings Inc. the manager owns.