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; 303 institutions reported holding it in 13F filings for Q2 2026, worth $4.24B in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in iRhythm Holdings, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 338
- +35 vs. Q2 2025
- Shares held
- 34.7M
- −681.3K (−1.9%) vs. Q2 2025
- Total value
- $5.97B
- +$525.9M (+9.7%) vs. Q2 2025
- New holders
- 63
- 111 more added
- Sold out
- 28
- 114 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IRTC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 303 | $4.24B |
| Q1 2026 | 305 | $4.19B |
| Q4 2025 | 335 | $6.24B |
| Q3 2025 | 338 | $5.97B |
| Q2 2025 | 304 | $5.44B |
| Q1 2025 | 256 | $3.77B |
| Q4 2024 | 227 | $3.09B |
| Q3 2024 | 242 | $2.55B |
| Q2 2024 | 228 | $3.82B |
| Q1 2024 | 253 | $4.00B |
| Q4 2023 | 222 | $3.53B |
| Q3 2023 | 224 | $3.12B |
| Q2 2023 | 203 | $3.47B |
| Q1 2023 | 209 | $4.18B |
| Q4 2022 | 208 | $2.92B |
| Q3 2022 | 233 | $3.81B |
| Q2 2022 | 242 | $3.28B |
| Q1 2022 | 222 | $4.78B |
| Q4 2021 | 213 | $3.43B |
| Q3 2021 | 186 | $1.64B |
| Q2 2021 | 183 | $1.93B |
| Q1 2021 | 217 | $4.33B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding iRhythm Holdings, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 3,240,099 | $557.3M | 0.01% | +4,439+0.1% | Added |
| BlackRock, Inc. | 2,875,476 | $494.6M | 0.01% | +125,841+4.6% | Added |
| Artisan Partners Limited Partnership | 2,567,513 | $441.6M | 0.63% | −173,328−6.3% | Reduced |
| Sands Capital Management, LLC | 2,236,110 | $384.6M | 1.06% | −679,417−23.3% | Reduced |
| Capital Research Global Investors | 1,183,736 | $203.6M | 0.04% | −323,128−21.4% | Reduced |
| State Street Corp | 847,878 | $145.8M | 0.01% | −20,647−2.4% | Reduced |
| Geode Capital Management, LLC | 790,104 | $135.9M | 0.01% | +22,768+3.0% | Added |
| Blair William & Co | 740,721 | $127.4M | 0.34% | +1,390+0.2% | Added |
| Eventide Asset Management, LLC | 691,512 | $118.9M | 1.96% | −610.0% | Reduced |
| FMR LLC | 624,095 | $107.3M | 0.01% | +203,894+48.5% | Added |
| Fuller & Thaler Asset Management, Inc. | 595,248 | $102.4M | 0.35% | +8,770+1.5% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 570,254 | $98.1M | 0.25% | −164,370−22.4% | Reduced |
| UBS Asset Management Americas Inc | 570,062 | $98.0M | 0.02% | −37,590−6.2% | Reduced |
| Arrowstreet Capital, Limited Partnership | 541,039 | $93.1M | 0.06% | +532,735+6,415.4% | Added |
| Stephens Investment Management Group LLC | 519,958 | $89.4M | 1.16% | −32,958−6.0% | Reduced |
| Holocene Advisors, LP | 473,280 | $81.4M | 0.19% | +160,186+51.2% | Added |
| Mackenzie Financial Corp | 455,261 | $78.3M | 0.09% | −274,552−37.6% | Reduced |
| JPMorgan Chase & Co | 439,438 | $75.6M | 0.00% | −123,763−22.0% | Reduced |
| Bessemer Group Inc | 434,235 | $74.7M | 0.11% | −134,961−23.7% | Reduced |
| Wellington Management Group LLP | 422,662 | $72.7M | 0.01% | +27,346+6.9% | Added |
| Allspring Global Investments Holdings, LLC | 415,517 | $69.6M | 0.11% | −18,826−4.3% | Reduced |
| Invesco Ltd. | 403,137 | $69.3M | 0.01% | +308,839+327.5% | Added |
| Bank of America Corp | 375,788 | $64.6M | 0.00% | +28,156+8.1% | Added |
| Champlain Investment Partners, LLC | 365,627 | $62.9M | 0.47% | −295,605−44.7% | Reduced |
| Point72 Asset Management, L.P. | 348,112 | $59.9M | 0.13% | +26,014+8.1% | Added |
| Price T Rowe Associates Inc | 339,641 | $58.4M | 0.01% | +313,394+1,194.0% | Added |
| D. E. Shaw & Co., Inc. | 337,125 | $58.0M | 0.05% | +89,289+36.0% | Added |
| Polar Capital Holdings Plc | 335,908 | $57.8M | 0.28% | +334,558+24,782.1% | Added |
| Westfield Capital Management Co LP | 323,980 | $55.7M | 0.23% | +33,410+11.5% | Added |
| Goldman Sachs Group Inc | 323,257 | $55.6M | 0.01% | −71,356−18.1% | Reduced |
| Fred Alger Management, LLC | 320,099 | $55.1M | 0.21% | −5,444−1.7% | Reduced |
| Northern Trust Corp | 294,371 | $50.6M | 0.01% | +5,054+1.7% | Added |
| Loomis Sayles & Co L P | 289,568 | $49.8M | 0.06% | +34,051+13.3% | Added |
| Charles Schwab Investment Management Inc | 286,662 | $49.3M | 0.01% | +15,195+5.6% | Added |
| Lord, Abbett & Co. LLC | 282,126 | $48.5M | 0.14% | −5,350−1.9% | Reduced |
| Millennium Management LLC | 277,857 | $47.8M | 0.04% | −58,450−17.4% | Reduced |
| SEI Investments Co | 246,966 | $42.5M | 0.05% | −43,668−15.0% | Reduced |
| Rock Springs Capital Management LP | 235,000 | $40.4M | 2.36% | −7,500−3.1% | Reduced |
| Braidwell LP | 225,845 | $38.8M | 1.15% | −74,184−24.7% | Reduced |
| Driehaus Capital Management LLC | 218,423 | $37.6M | 0.27% | +56,777+35.1% | Added |
| Nuveen, LLC | 216,648 | $37.3M | 0.01% | +2,636+1.2% | Added |
| Man Group plc | 206,422 | $35.5M | 0.07% | −61,181−22.9% | Reduced |
| Deutsche Bank AG | 199,543 | $34.3M | 0.01% | +7,353+3.8% | Added |
| Manufacturers Life Insurance Company, The | 195,348 | $33.6M | 0.03% | −294−0.2% | Reduced |
| Next Century Growth Investors LLC | 189,082 | $32.5M | 2.37% | −35,781−15.9% | Reduced |
| Barclays PLC | 186,753 | $32.1M | 0.01% | −28,536−13.3% | Reduced |
| Squarepoint Ops LLC | 181,035 | $31.1M | 0.07% | +20,586+12.8% | Added |
| Raymond James Financial Inc | 169,137 | $29.1M | 0.01% | +52,670+45.2% | Added |
| New York State Common Retirement Fund | 167,447 | $28.8M | 0.04% | −2,566−1.5% | Reduced |
| Qube Research & Technologies Ltd | 166,862 | $28.7M | 0.04% | +119,437+251.8% | Added |
| Schroder Investment Management Group | 164,066 | $27.8M | 0.02% | −56,903−25.8% | Reduced |
| Massachusetts Financial Services Co | 160,550 | $27.6M | 0.01% | +34,095+27.0% | Added |
| Jennison Associates LLC | 157,276 | $27.0M | 0.02% | −140,216−47.1% | Reduced |
| Citigroup Inc | 156,420 | $26.9M | 0.02% | −10,324−6.2% | Reduced |
| First Light Asset Management, LLC | 155,099 | $26.7M | 2.51% | −32,256−17.2% | Reduced |
| Morgan Stanley | 154,871 | $26.6M | 0.00% | −23,027−12.9% | Reduced |
| Royal Bank of Canada | 137,886 | $23.7M | 0.00% | +60,165+77.4% | Added |
| Ameriprise Financial Inc | 137,309 | $23.6M | 0.01% | +2,021+1.5% | Added |
| BNP Paribas Arbitrage, SA | 132,899 | $22.9M | 0.02% | −50,358−27.5% | Reduced |
| Jain Global LLC | 131,092 | $22.5M | 0.29% | +131,092 | New |
| Segall Bryant & Hamill, LLC | 125,298 | $21.6M | 0.29% | −11,995−8.7% | Reduced |
| Perceptive Advisors LLC | 123,000 | $21.2M | 0.61% | +123,000 | New |
| Renaissance Technologies LLC | 121,400 | $20.9M | 0.03% | −19,800−14.0% | Reduced |
| Ophir Asset Management Pty Ltd | 101,561 | $17.5M | 2.16% | −100,523−49.7% | Reduced |
| Bank of New York Mellon Corp | 99,162 | $17.1M | 0.00% | −250,176−71.6% | Reduced |
| Walleye Capital LLC | 95,912 | $16.5M | 0.13% | +22,090+29.9% | Added |
| Jane Street Group, LLC | 92,438 | $15.9M | 0.02% | +4,270+4.8% | Added |
| Frontier Capital Management Co LLC | 89,230 | $15.3M | 0.14% | −17,185−16.1% | Reduced |
| Cubist Systematic Strategies, LLC | 89,220 | $15.3M | 0.22% | −21,507−19.4% | Reduced |
| Prudential Financial Inc | 86,528 | $14.9M | 0.02% | +40,703+88.8% | Added |
| Engineers Gate Manager LP | 85,211 | $14.7M | 0.17% | +10,369+13.9% | Added |
| Oberweis Asset Management Inc | 81,200 | $14.0M | 0.53% | 00.0% | Unchanged |
| Principal Financial Group Inc | 80,136 | $13.8M | 0.01% | +967+1.2% | Added |
| C WorldWide Group Holding A/S | 80,000 | $13.8M | 0.21% | 00.0% | Unchanged |
| Algert Global LLC | 79,730 | $13.7M | 0.23% | +49,764+166.1% | Added |
| Victory Capital Management Inc | 77,952 | $13.4M | 0.01% | +18,053+30.1% | Added |
| Assenagon Asset Management S.A. | 77,876 | $13.4M | 0.02% | +77,876 | New |
| M&G Plc | 76,868 | $13.2M | 0.07% | +2,470+3.3% | Added |
| WCM Investment Management, LLC | 77,261 | $13.1M | 0.03% | +91+0.1% | Added |
| Federated Hermes, Inc. | 70,401 | $12.1M | 0.02% | +21,977+45.4% | Added |
| TimesSquare Capital Management, LLC | 67,317 | $11.6M | 0.17% | −4,343−6.1% | Reduced |
| Integral Health Asset Management, LLC | 65,000 | $11.2M | 0.81% | +25,000+62.5% | Added |
| PFM Health Sciences, LP | 64,998 | $11.2M | 0.95% | −23,159−26.3% | Reduced |
| Swiss National Bank | 61,900 | $10.6M | 0.01% | +1,900+3.2% | Added |
| State of Wisconsin Investment Board | 60,224 | $10.4M | 0.02% | −8,251−12.0% | Reduced |
| First Trust Advisors LP | 58,739 | $10.1M | 0.01% | +2,542+4.5% | Added |
| Castleark Management LLC | 58,393 | $10.0M | 0.28% | +10,213+21.2% | Added |
| Peregrine Capital Management LLC | 58,102 | $9.99M | 0.30% | −18,492−24.1% | Reduced |
| Amundi | 55,678 | $9.79M | 0.00% | −4,930−8.1% | Reduced |
| UBS Group AG | 52,783 | $9.08M | 0.00% | +17,510+49.6% | Added |
| Macquarie Group Ltd | 51,421 | $8.84M | 0.01% | −6,102−10.6% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 51,316 | $8.83M | 0.03% | −2,610−4.8% | Reduced |
| Adage Capital Partners GP, L.L.C. | 50,000 | $8.60M | 0.01% | −25,000−33.3% | Reduced |
| Silvercrest Asset Management Group LLC | 47,837 | $8.23M | 0.05% | −1,286−2.6% | Reduced |
| Rhumbline Advisers | 47,579 | $8.18M | 0.01% | −898−1.9% | Reduced |
| Russell Investments Group, Ltd. | 46,894 | $8.07M | 0.01% | +22,643+93.4% | Added |
| Legal & General Group Plc | 42,005 | $7.22M | 0.00% | −1,999−4.5% | Reduced |
| Steadfast Capital Management LP | 39,700 | $6.83M | 0.12% | +39,700 | New |
| Hillsdale Investment Management Inc. | 38,250 | $6.58M | 0.20% | +750+2.0% | Added |
| Alliancebernstein L.P. | 37,489 | $6.45M | 0.00% | +95+0.3% | Added |