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; 304 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 | 304 | $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 |
|---|---|---|---|---|---|
| Lord, Abbett & Co. LLC | 277,212 | $49.2M | 0.15% | −4,914−1.7% | Reduced |
| Northern Trust Corp | 279,070 | $49.5M | 0.01% | −15,301−5.2% | Reduced |
| Charles Schwab Investment Management Inc | 286,124 | $50.8M | 0.01% | −538−0.2% | Reduced |
| Polar Capital Holdings Plc | 308,100 | $54.7M | 0.25% | −27,808−8.3% | Reduced |
| Fred Alger Management, LLC | 310,582 | $55.1M | 0.22% | −9,517−3.0% | Reduced |
| Bessemer Group Inc | 321,984 | $57.1M | 0.09% | −112,251−25.9% | Reduced |
| Westfield Capital Management Co LP | 325,063 | $57.7M | 0.24% | +1,083+0.3% | Added |
| Goldman Sachs Group Inc | 329,135 | $58.4M | 0.01% | +5,878+1.8% | Added |
| Mackenzie Financial Corp | 347,304 | $61.9M | 0.07% | −107,957−23.7% | Reduced |
| Bank of America Corp | 354,770 | $63.0M | 0.00% | −21,018−5.6% | Reduced |
| D. E. Shaw & Co., Inc. | 360,669 | $64.0M | 0.05% | +23,544+7.0% | Added |
| Loomis Sayles & Co L P | 392,077 | $69.6M | 0.08% | +102,509+35.4% | Added |
| Allspring Global Investments Holdings, LLC | 407,409 | $71.4M | 0.12% | −8,108−2.0% | Reduced |
| Wellington Management Group LLP | 408,256 | $72.4M | 0.01% | −14,406−3.4% | Reduced |
| Invesco Ltd. | 498,385 | $88.4M | 0.01% | +95,248+23.6% | Added |
| Price T Rowe Associates Inc | 502,120 | $89.1M | 0.01% | +162,479+47.8% | Added |
| Stephens Investment Management Group LLC | 519,325 | $92.1M | 1.20% | −633−0.1% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 583,014 | $103.5M | 0.12% | +12,760+2.2% | Added |
| Arrowstreet Capital, Limited Partnership | 606,969 | $107.7M | 0.06% | +65,930+12.2% | Added |
| FMR LLC | 628,766 | $111.6M | 0.01% | +4,671+0.7% | Added |
| Fuller & Thaler Asset Management, Inc. | 639,423 | $113.5M | 0.38% | +44,175+7.4% | Added |
| Holocene Advisors, LP | 683,568 | $121.3M | 0.26% | +210,288+44.4% | Added |
| Eventide Asset Management, LLC | 692,486 | $122.9M | 1.92% | +974+0.1% | Added |
| Blair William & Co | 718,797 | $127.5M | 0.34% | −21,924−3.0% | Reduced |
| JPMorgan Chase & Co | 758,587 | $134.6M | 0.01% | +319,149+72.6% | Added |
| State Street Corp | 764,839 | $135.7M | 0.00% | −83,039−9.8% | Reduced |
| Millennium Management LLC | 826,376 | $146.6M | 0.11% | +548,519+197.4% | Added |
| UBS Asset Management Americas Inc | 829,862 | $147.3M | 0.03% | +259,800+45.6% | Added |
| Geode Capital Management, LLC | 858,405 | $152.3M | 0.01% | +68,301+8.6% | Added |
| RTW Investments, LP | 1,181,990 | $209.7M | 2.10% | +1,181,990 | New |
| Capital Research Global Investors | 1,184,746 | $210.2M | 0.04% | +1,010+0.1% | Added |
| Artisan Partners Limited Partnership | 1,511,992 | $268.3M | 0.41% | −1,055,521−41.1% | Reduced |
| Sands Capital Management, LLC | 1,699,645 | $301.6M | 0.92% | −536,465−24.0% | Reduced |
| BlackRock, Inc. | 2,813,989 | $499.3M | 0.01% | −61,487−2.1% | Reduced |
| Vanguard Group Inc | 3,310,519 | $587.4M | 0.01% | +70,420+2.2% | Added |
| Champlain Investment Partners, LLC | 0 | $0 | 0.00% | −365,627−100.0% | Sold out |
| PFM Health Sciences, LP | 0 | $0 | 0.00% | −64,998−100.0% | Sold out |
| Macquarie Group Ltd | 0 | $0 | 0.00% | −51,421−100.0% | Sold out |
| 1832 Asset Management L.P. | 0 | $0 | 0.00% | −28,200−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −27,893−100.0% | Sold out |
| Ossiam | 0 | $0 | 0.00% | −27,100−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −19,142−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −13,327−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −9,225−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −8,892−100.0% | Sold out |
| Fieldview Capital Management, LLC | 0 | $0 | 0.00% | −8,182−100.0% | Sold out |
| Calamos Advisors LLC | 0 | $0 | 0.00% | −7,494−100.0% | Sold out |
| CWM Advisors, LLC | 0 | $0 | 0.00% | −6,055−100.0% | Sold out |
| Dimensional Fund Advisors LP | 0 | $0 | 0.00% | −5,387−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −4,386−100.0% | Sold out |
| Diversified Trust Co | 0 | $0 | 0.00% | −4,245−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −4,177−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −3,588−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −3,302−100.0% | Sold out |
| Counterpoint Mutual Funds LLC | 0 | $0 | 0.00% | −2,900−100.0% | Sold out |
| O'Neil Global Advisors, Inc. | 0 | $0 | 0.00% | −2,718−100.0% | Sold out |
| Voleon Capital Management LP | 0 | $0 | 0.00% | −2,192−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −2,100−100.0% | Sold out |
| HighTower Advisors, LLC | 0 | $0 | 0.00% | −1,678−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −1,671−100.0% | Sold out |
| CI Private Wealth, LLC | 0 | $0 | 0.00% | −1,573−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −1,516−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −1,406−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −1,383−100.0% | Sold out |
| Stifel Financial Corp | 0 | $0 | 0.00% | −1,297−100.0% | Sold out |
| 111 Capital | 0 | $0 | 0.00% | −1,272−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −1,250−100.0% | Sold out |
| Stratos Wealth Partners, LTD. | 0 | $0 | 0.00% | −1,203−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −967−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −589−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −362−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Rise Advisors, LLC | 0 | $0 | 0.00% | −69−100.0% | Sold out |
| Halbert Hargrove Global Advisors, LLC | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| Tortoise Investment Management, LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |
| EFG Asset Management (North America) Corp. | – | – | – | – | Not filed |
| Synovus Financial Corp | – | – | – | – | Not filed |
| Wetherby Asset Management Inc | – | – | – | – | Not filed |
| CIBC Bancorp USA Inc. | – | – | – | – | Not filed |
| Point72 (DIFC) Ltd | – | – | – | – | Not filed |
| Point72 Europe (London) LLP | – | – | – | – | Not filed |