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, 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 | 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, 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 |
|---|---|---|---|---|---|
| Rock Springs Capital Management LP | 235,000 | $40.4M | 2.36% | −7,500−3.1% | Reduced |
| SEI Investments Co | 246,966 | $42.5M | 0.05% | −43,668−15.0% | Reduced |
| Millennium Management LLC | 277,857 | $47.8M | 0.04% | −58,450−17.4% | Reduced |
| Lord, Abbett & Co. LLC | 282,126 | $48.5M | 0.14% | −5,350−1.9% | Reduced |
| Charles Schwab Investment Management Inc | 286,662 | $49.3M | 0.01% | +15,195+5.6% | Added |
| Loomis Sayles & Co L P | 289,568 | $49.8M | 0.06% | +34,051+13.3% | Added |
| Northern Trust Corp | 294,371 | $50.6M | 0.01% | +5,054+1.7% | Added |
| Fred Alger Management, LLC | 320,099 | $55.1M | 0.21% | −5,444−1.7% | Reduced |
| Goldman Sachs Group Inc | 323,257 | $55.6M | 0.01% | −71,356−18.1% | Reduced |
| Westfield Capital Management Co LP | 323,980 | $55.7M | 0.23% | +33,410+11.5% | Added |
| Polar Capital Holdings Plc | 335,908 | $57.8M | 0.28% | +334,558+24,782.1% | Added |
| D. E. Shaw & Co., Inc. | 337,125 | $58.0M | 0.05% | +89,289+36.0% | Added |
| Price T Rowe Associates Inc | 339,641 | $58.4M | 0.01% | +313,394+1,194.0% | Added |
| Point72 Asset Management, L.P. | 348,112 | $59.9M | 0.13% | +26,014+8.1% | Added |
| Champlain Investment Partners, LLC | 365,627 | $62.9M | 0.47% | −295,605−44.7% | Reduced |
| Bank of America Corp | 375,788 | $64.6M | 0.00% | +28,156+8.1% | Added |
| Invesco Ltd. | 403,137 | $69.3M | 0.01% | +308,839+327.5% | Added |
| Allspring Global Investments Holdings, LLC | 415,517 | $69.6M | 0.11% | −18,826−4.3% | Reduced |
| Wellington Management Group LLP | 422,662 | $72.7M | 0.01% | +27,346+6.9% | Added |
| Bessemer Group Inc | 434,235 | $74.7M | 0.11% | −134,961−23.7% | Reduced |
| JPMorgan Chase & Co | 439,438 | $75.6M | 0.00% | −123,763−22.0% | Reduced |
| Mackenzie Financial Corp | 455,261 | $78.3M | 0.09% | −274,552−37.6% | Reduced |
| Holocene Advisors, LP | 473,280 | $81.4M | 0.19% | +160,186+51.2% | Added |
| Stephens Investment Management Group LLC | 519,958 | $89.4M | 1.16% | −32,958−6.0% | Reduced |
| Arrowstreet Capital, Limited Partnership | 541,039 | $93.1M | 0.06% | +532,735+6,415.4% | Added |
| UBS Asset Management Americas Inc | 570,062 | $98.0M | 0.02% | −37,590−6.2% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 570,254 | $98.1M | 0.25% | −164,370−22.4% | Reduced |
| Fuller & Thaler Asset Management, Inc. | 595,248 | $102.4M | 0.35% | +8,770+1.5% | Added |
| FMR LLC | 624,095 | $107.3M | 0.01% | +203,894+48.5% | Added |
| Eventide Asset Management, LLC | 691,512 | $118.9M | 1.96% | −610.0% | Reduced |
| Blair William & Co | 740,721 | $127.4M | 0.34% | +1,390+0.2% | Added |
| Geode Capital Management, LLC | 790,104 | $135.9M | 0.01% | +22,768+3.0% | Added |
| State Street Corp | 847,878 | $145.8M | 0.01% | −20,647−2.4% | Reduced |
| Capital Research Global Investors | 1,183,736 | $203.6M | 0.04% | −323,128−21.4% | Reduced |
| Sands Capital Management, LLC | 2,236,110 | $384.6M | 1.06% | −679,417−23.3% | Reduced |
| Artisan Partners Limited Partnership | 2,567,513 | $441.6M | 0.63% | −173,328−6.3% | Reduced |
| BlackRock, Inc. | 2,875,476 | $494.6M | 0.01% | +125,841+4.6% | Added |
| Vanguard Group Inc | 3,240,099 | $557.3M | 0.01% | +4,439+0.1% | Added |
| Freestone Grove Partners LP | 0 | $0 | 0.00% | −154,317−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −64,668−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −44,713−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −23,500−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −16,504−100.0% | Sold out |
| Kennedy Capital Management, Inc. | 0 | $0 | 0.00% | −15,844−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −12,877−100.0% | Sold out |
| Semanteon Capital Management, LP | 0 | $0 | 0.00% | −9,951−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −9,622−100.0% | Sold out |
| UBS Oconnor LLC | 0 | $0 | 0.00% | −7,993−100.0% | Sold out |
| Scientech Research LLC | 0 | $0 | 0.00% | −6,465−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −5,450−100.0% | Sold out |
| Bryce Point Capital, LLC | 0 | $0 | 0.00% | −4,860−100.0% | Sold out |
| R Squared Ltd | 0 | $0 | 0.00% | −2,621−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −2,223−100.0% | Sold out |
| Petrus Trust Company, LTA | 0 | $0 | 0.00% | −1,792−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −1,686−100.0% | Sold out |
| Moody National Bank Trust Division | 0 | $0 | 0.00% | −1,602−100.0% | Sold out |
| Pictet & Cie (Europe) SA | 0 | $0 | 0.00% | −1,542−100.0% | Sold out |
| Atria Investments LLC | 0 | $0 | 0.00% | −1,300−100.0% | Sold out |
| Raiffeisen Bank International AG | 0 | $0 | 0.00% | −680−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Geneos Wealth Management Inc. | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Kestra Investment Management, LLC | 0 | $0 | 0.00% | −28−100.0% | Sold out |
| Toronto Dominion Bank | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| South State Corp. | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| UMA Financial Services, Inc. | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| CIBC World Markets Corp | – | – | – | – | Not filed |