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, Q4 2025
Institutional positions in iRhythm Holdings, Inc. as of Dec 31, 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
- 335
- +4 vs. Q3 2025
- Shares held
- 35.2M
- +613.4K (+1.8%) vs. Q3 2025
- Total value
- $6.24B
- +$298.8M (+5.0%) vs. Q3 2025
- New holders
- 46
- 108 more added
- Sold out
- 42
- 122 more reduced
7 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding iRhythm Holdings, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 3,310,519 | $587.4M | 0.01% | +70,420+2.2% | Added |
| BlackRock, Inc. | 2,813,989 | $499.3M | 0.01% | −61,487−2.1% | Reduced |
| Sands Capital Management, LLC | 1,699,645 | $301.6M | 0.92% | −536,465−24.0% | Reduced |
| Artisan Partners Limited Partnership | 1,511,992 | $268.3M | 0.41% | −1,055,521−41.1% | Reduced |
| Capital Research Global Investors | 1,184,746 | $210.2M | 0.04% | +1,010+0.1% | Added |
| RTW Investments, LP | 1,181,990 | $209.7M | 2.10% | +1,181,990 | New |
| Geode Capital Management, LLC | 858,405 | $152.3M | 0.01% | +68,301+8.6% | Added |
| UBS Asset Management Americas Inc | 829,862 | $147.3M | 0.03% | +259,800+45.6% | Added |
| Millennium Management LLC | 826,376 | $146.6M | 0.11% | +548,519+197.4% | Added |
| State Street Corp | 764,839 | $135.7M | 0.00% | −83,039−9.8% | Reduced |
| JPMorgan Chase & Co | 758,587 | $134.6M | 0.01% | +319,149+72.6% | Added |
| Blair William & Co | 718,797 | $127.5M | 0.34% | −21,924−3.0% | Reduced |
| Eventide Asset Management, LLC | 692,486 | $122.9M | 1.92% | +974+0.1% | Added |
| Holocene Advisors, LP | 683,568 | $121.3M | 0.26% | +210,288+44.4% | Added |
| Fuller & Thaler Asset Management, Inc. | 639,423 | $113.5M | 0.38% | +44,175+7.4% | Added |
| FMR LLC | 628,766 | $111.6M | 0.01% | +4,671+0.7% | Added |
| Arrowstreet Capital, Limited Partnership | 606,969 | $107.7M | 0.06% | +65,930+12.2% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 583,014 | $103.5M | 0.12% | +12,760+2.2% | Added |
| Stephens Investment Management Group LLC | 519,325 | $92.1M | 1.20% | −633−0.1% | Reduced |
| Price T Rowe Associates Inc | 502,120 | $89.1M | 0.01% | +162,479+47.8% | Added |
| Invesco Ltd. | 498,385 | $88.4M | 0.01% | +95,248+23.6% | Added |
| Wellington Management Group LLP | 408,256 | $72.4M | 0.01% | −14,406−3.4% | Reduced |
| Allspring Global Investments Holdings, LLC | 407,409 | $71.4M | 0.12% | −8,108−2.0% | Reduced |
| Loomis Sayles & Co L P | 392,077 | $69.6M | 0.08% | +102,509+35.4% | Added |
| D. E. Shaw & Co., Inc. | 360,669 | $64.0M | 0.05% | +23,544+7.0% | Added |
| Bank of America Corp | 354,770 | $63.0M | 0.00% | −21,018−5.6% | Reduced |
| Mackenzie Financial Corp | 347,304 | $61.9M | 0.07% | −107,957−23.7% | Reduced |
| Goldman Sachs Group Inc | 329,135 | $58.4M | 0.01% | +5,878+1.8% | Added |
| Westfield Capital Management Co LP | 325,063 | $57.7M | 0.24% | +1,083+0.3% | Added |
| Bessemer Group Inc | 321,984 | $57.1M | 0.09% | −112,251−25.9% | Reduced |
| Fred Alger Management, LLC | 310,582 | $55.1M | 0.22% | −9,517−3.0% | Reduced |
| Polar Capital Holdings Plc | 308,100 | $54.7M | 0.25% | −27,808−8.3% | Reduced |
| Charles Schwab Investment Management Inc | 286,124 | $50.8M | 0.01% | −538−0.2% | Reduced |
| Northern Trust Corp | 279,070 | $49.5M | 0.01% | −15,301−5.2% | Reduced |
| Lord, Abbett & Co. LLC | 277,212 | $49.2M | 0.15% | −4,914−1.7% | Reduced |
| Driehaus Capital Management LLC | 267,968 | $47.5M | 0.32% | +49,545+22.7% | Added |
| Rock Springs Capital Management LP | 235,000 | $41.7M | 2.14% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 225,205 | $40.0M | 0.06% | +147,329+189.2% | Added |
| Point72 Asset Management, L.P. | 219,468 | $38.9M | 0.06% | −128,644−37.0% | Reduced |
| Braidwell LP | 217,345 | $38.6M | 1.23% | −8,500−3.8% | Reduced |
| SEI Investments Co | 203,355 | $36.1M | 0.04% | −43,611−17.7% | Reduced |
| Manufacturers Life Insurance Company, The | 196,075 | $34.8M | 0.03% | +727+0.4% | Added |
| Barclays PLC | 193,975 | $34.4M | 0.01% | +7,222+3.9% | Added |
| Jane Street Group, LLC | 192,391 | $34.1M | 0.04% | +99,953+108.1% | Added |
| Citigroup Inc | 190,335 | $33.8M | 0.02% | +33,915+21.7% | Added |
| Deutsche Bank AG | 187,661 | $33.3M | 0.01% | −11,882−6.0% | Reduced |
| Next Century Growth Investors LLC | 172,838 | $30.7M | 2.13% | −16,244−8.6% | Reduced |
| Morgan Stanley | 169,991 | $30.2M | 0.00% | +15,120+9.8% | Added |
| Balyasny Asset Management LLC | 167,274 | $29.7M | 0.06% | +167,274 | New |
| Schroder Investment Management Group | 162,053 | $28.9M | 0.02% | −2,013−1.2% | Reduced |
| Raymond James Financial Inc | 153,806 | $27.4M | 0.01% | −15,331−9.1% | Reduced |
| First Light Asset Management, LLC | 153,871 | $27.3M | 2.09% | −1,228−0.8% | Reduced |
| UBS Group AG | 153,218 | $27.2M | 0.01% | +100,435+190.3% | Added |
| Massachusetts Financial Services Co | 150,284 | $26.7M | 0.01% | −10,266−6.4% | Reduced |
| Qube Research & Technologies Ltd | 144,614 | $25.7M | 0.04% | −22,248−13.3% | Reduced |
| Jennison Associates LLC | 139,059 | $24.7M | 0.01% | −18,217−11.6% | Reduced |
| Nuveen, LLC | 133,675 | $23.7M | 0.01% | −82,973−38.3% | Reduced |
| Integral Health Asset Management, LLC | 130,000 | $23.1M | 1.17% | +65,000+100.0% | Added |
| New York State Common Retirement Fund | 129,732 | $23.0M | 0.03% | −37,715−22.5% | Reduced |
| Ophir Asset Management Pty Ltd | 127,697 | $22.7M | 2.54% | +26,136+25.7% | Added |
| Walleye Capital LLC | 127,596 | $22.6M | 0.13% | +31,684+33.0% | Added |
| Adage Capital Partners GP, L.L.C. | 125,000 | $22.2M | 0.03% | +75,000+150.0% | Added |
| Ameriprise Financial Inc | 123,621 | $21.9M | 0.00% | −13,688−10.0% | Reduced |
| Oberweis Asset Management Inc | 119,700 | $21.2M | 0.78% | +38,500+47.4% | Added |
| Franklin Resources Inc | 118,578 | $21.0M | 0.01% | +106,347+869.5% | Added |
| Bank of New York Mellon Corp | 112,119 | $19.9M | 0.00% | +12,957+13.1% | Added |
| Segall Bryant & Hamill, LLC | 111,697 | $19.8M | 0.27% | −13,601−10.9% | Reduced |
| Perceptive Advisors LLC | 108,000 | $19.2M | 0.35% | −15,000−12.2% | Reduced |
| Federated Hermes, Inc. | 106,407 | $18.9M | 0.03% | +36,006+51.1% | Added |
| Renaissance Technologies LLC | 103,900 | $18.4M | 0.03% | −17,500−14.4% | Reduced |
| Squarepoint Ops LLC | 93,708 | $16.6M | 0.03% | −87,327−48.2% | Reduced |
| M&G Plc | 84,138 | $14.9M | 0.08% | +7,270+9.5% | Added |
| C WorldWide Group Holding A/S | 80,000 | $14.2M | 0.25% | 00.0% | Unchanged |
| Trexquant Investment LP | 78,653 | $14.0M | 0.12% | +53,890+217.6% | Added |
| Engineers Gate Manager LP | 77,119 | $13.7M | 0.16% | −8,092−9.5% | Reduced |
| WCM Investment Management, LLC | 73,292 | $13.1M | 0.03% | −3,969−5.1% | Reduced |
| BNP Paribas Arbitrage, SA | 73,651 | $13.1M | 0.01% | −59,248−44.6% | Reduced |
| Frontier Capital Management Co LLC | 71,048 | $12.6M | 0.13% | −18,182−20.4% | Reduced |
| Principal Financial Group Inc | 69,421 | $12.3M | 0.01% | −10,715−13.4% | Reduced |
| Swiss National Bank | 63,400 | $11.2M | 0.01% | +1,500+2.4% | Added |
| Freestone Grove Partners LP | 63,140 | $11.2M | 0.08% | +63,140 | New |
| First Trust Advisors LP | 60,802 | $10.8M | 0.01% | +2,063+3.5% | Added |
| TimesSquare Capital Management, LLC | 59,822 | $10.6M | 0.16% | −7,495−11.1% | Reduced |
| Peregrine Capital Management LLC | 56,868 | $10.1M | 0.31% | −1,234−2.1% | Reduced |
| Norges Bank | 56,237 | $9.98M | 0.00% | +56,237 | New |
| Man Group plc | 56,202 | $9.97M | 0.02% | −150,220−72.8% | Reduced |
| Jain Global LLC | 54,844 | $9.73M | 0.10% | −76,248−58.2% | Reduced |
| Legal & General Group Plc | 52,070 | $9.24M | 0.00% | +10,065+24.0% | Added |
| State of Wisconsin Investment Board | 51,153 | $9.08M | 0.02% | −9,071−15.1% | Reduced |
| Castleark Management LLC | 50,193 | $8.91M | 0.26% | −8,200−14.0% | Reduced |
| Silvercrest Asset Management Group LLC | 47,898 | $8.50M | 0.06% | +61+0.1% | Added |
| Wells Fargo & Company | 45,286 | $8.04M | 0.00% | +16,169+55.5% | Added |
| Victory Capital Management Inc | 43,215 | $7.67M | 0.00% | −34,737−44.6% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 42,118 | $7.47M | 0.02% | −9,198−17.9% | Reduced |
| Steadfast Capital Management LP | 41,000 | $7.28M | 0.13% | +1,300+3.3% | Added |
| Rhumbline Advisers | 40,610 | $7.21M | 0.01% | −6,969−14.6% | Reduced |
| Prudential Financial Inc | 40,424 | $7.17M | 0.01% | −46,104−53.3% | Reduced |
| AQR Capital Management LLC | 40,165 | $7.13M | 0.00% | +8,744+27.8% | Added |
| Nomura Asset Management International Inc. | 39,747 | $7.05M | 0.01% | +39,747 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 38,534 | $6.84M | 0.01% | +6,678+21.0% | Added |