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, Q1 2025
Institutional positions in iRhythm Holdings, Inc. as of Mar 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
- 256
- +32 vs. Q4 2024
- Shares held
- 36.0M
- +1.75M (+5.1%) vs. Q4 2024
- Total value
- $3.77B
- +$682.2M (+22.1%) vs. Q4 2024
- New holders
- 54
- 79 more added
- Sold out
- 22
- 83 more reduced
3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding iRhythm Holdings, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 3,108,194 | $325.4M | 0.01% | −28,176−0.9% | Reduced |
| Sands Capital Management, LLC | 3,016,207 | $315.7M | 1.07% | −160,495−5.1% | Reduced |
| Artisan Partners Limited Partnership | 2,814,280 | $294.6M | 0.48% | +51,546+1.9% | Added |
| BlackRock, Inc. | 2,703,345 | $283.0M | 0.01% | −25,511−0.9% | Reduced |
| Capital Research Global Investors | 2,202,622 | $230.6M | 0.05% | +565,596+34.6% | Added |
| Mackenzie Financial Corp | 1,155,954 | $121.0M | 0.17% | −225,988−16.4% | Reduced |
| State Street Corp | 917,688 | $96.1M | 0.00% | −31,093−3.3% | Reduced |
| UBS Asset Management Americas Inc | 903,084 | $94.5M | 0.02% | +568,261+169.7% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 879,816 | $92.1M | 0.25% | −20,300−2.3% | Reduced |
| Champlain Investment Partners, LLC | 822,791 | $86.1M | 0.62% | +96,529+13.3% | Added |
| Blair William & Co | 789,999 | $82.7M | 0.25% | +185,262+30.6% | Added |
| Geode Capital Management, LLC | 750,369 | $78.6M | 0.01% | +18,902+2.6% | Added |
| Eventide Asset Management, LLC | 740,062 | $77.5M | 1.54% | +652+0.1% | Added |
| Westfield Capital Management Co LP | 617,078 | $64.6M | 0.31% | −148,175−19.4% | Reduced |
| Bessemer Group Inc | 574,053 | $60.1M | 0.11% | +6,046+1.1% | Added |
| JPMorgan Chase & Co | 562,514 | $58.9M | 0.00% | −144,292−20.4% | Reduced |
| Braidwell LP | 556,391 | $58.2M | 2.05% | −149,000−21.1% | Reduced |
| Allspring Global Investments Holdings, LLC | 518,618 | $55.4M | 0.10% | −51,430−9.0% | Reduced |
| Stephens Investment Management Group LLC | 520,582 | $54.5M | 0.79% | +17,657+3.5% | Added |
| Fuller & Thaler Asset Management, Inc. | 518,240 | $54.2M | 0.21% | +518,240 | New |
| FMR LLC | 463,223 | $48.5M | 0.00% | −12,182−2.6% | Reduced |
| Goldman Sachs Group Inc | 433,780 | $45.4M | 0.01% | +108,941+33.5% | Added |
| Point72 Asset Management, L.P. | 420,303 | $44.0M | 0.12% | +420,303 | New |
| Millennium Management LLC | 399,746 | $41.8M | 0.04% | +339,529+563.8% | Added |
| Ophir Asset Management Pty Ltd | 377,682 | $39.5M | 6.91% | −49,720−11.6% | Reduced |
| Bank of America Corp | 371,920 | $38.9M | 0.00% | +119,452+47.3% | Added |
| Slate Path Capital LP | 365,400 | $38.3M | 0.69% | −145,100−28.4% | Reduced |
| Bank of New York Mellon Corp | 357,501 | $37.4M | 0.01% | −133,984−27.3% | Reduced |
| First Light Asset Management, LLC | 325,046 | $34.0M | 3.89% | −105,454−24.5% | Reduced |
| Schroder Investment Management Group | 314,690 | $33.0M | 0.03% | +6,352+2.1% | Added |
| SEI Investments Co | 312,762 | $32.7M | 0.04% | −5,891−1.8% | Reduced |
| Northern Trust Corp | 292,009 | $30.6M | 0.00% | +4,675+1.6% | Added |
| Jennison Associates LLC | 280,187 | $29.3M | 0.02% | +280,187 | New |
| Lord, Abbett & Co. LLC | 258,628 | $27.1M | 0.10% | +258,628 | New |
| Charles Schwab Investment Management Inc | 254,579 | $26.6M | 0.00% | −4,915−1.9% | Reduced |
| Rock Springs Capital Management LP | 254,300 | $26.6M | 1.52% | −143,200−36.0% | Reduced |
| Fred Alger Management, LLC | 249,714 | $26.1M | 0.15% | −23,059−8.5% | Reduced |
| Morgan Stanley | 232,669 | $24.4M | 0.00% | −19,095−7.6% | Reduced |
| Frontier Capital Management Co LLC | 224,910 | $23.5M | 0.26% | −130,237−36.7% | Reduced |
| Next Century Growth Investors LLC | 208,220 | $21.8M | 1.94% | +208,220 | New |
| Deutsche Bank AG | 204,915 | $21.5M | 0.01% | −300.0% | Reduced |
| Barclays PLC | 200,482 | $21.0M | 0.01% | −15,029−7.0% | Reduced |
| Manufacturers Life Insurance Company, The | 196,358 | $20.6M | 0.02% | +439+0.2% | Added |
| Citigroup Inc | 185,142 | $19.4M | 0.01% | −5,056−2.7% | Reduced |
| UBS Group AG | 183,106 | $19.2M | 0.00% | +12,511+7.3% | Added |
| Verition Fund Management LLC | 166,472 | $17.4M | 0.10% | +166,472 | New |
| Wellington Management Group LLP | 165,642 | $17.3M | 0.00% | −68,198−29.2% | Reduced |
| New York State Common Retirement Fund | 160,886 | $16.8M | 0.02% | +33,307+26.1% | Added |
| Alberta Investment Management Corp | 145,166 | $15.2M | 0.10% | 00.0% | Unchanged |
| WCM Investment Management, LLC | 138,437 | $14.5M | 0.04% | +235+0.2% | Added |
| Freestone Grove Partners LP | 136,972 | $14.3M | 0.15% | +120,260+719.6% | Added |
| Segall Bryant & Hamill, LLC | 130,748 | $13.7M | 0.21% | −8,643−6.2% | Reduced |
| Raymond James Financial Inc | 110,126 | $11.5M | 0.00% | +8,639+8.5% | Added |
| Adage Capital Partners GP, L.L.C. | 100,000 | $10.5M | 0.02% | 00.0% | Unchanged |
| Amundi | 95,854 | $10.2M | 0.00% | −7,054−6.9% | Reduced |
| Silvercrest Asset Management Group LLC | 94,881 | $9.93M | 0.07% | −248−0.3% | Reduced |
| Nuveen, LLC | 92,729 | $9.71M | 0.00% | +92,729 | New |
| Peregrine Capital Management LLC | 83,055 | $8.69M | 0.29% | −16,098−16.2% | Reduced |
| C WorldWide Group Holding A/S | 80,000 | $8.37M | 0.10% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 75,040 | $7.86M | 0.02% | +624+0.8% | Added |
| Point72 (DIFC) Ltd | 72,129 | $7.55M | 0.73% | +72,129 | New |
| Ameriprise Financial Inc | 68,677 | $7.19M | 0.00% | −2,577−3.6% | Reduced |
| Comerica Bank | 62,228 | $6.51M | 0.03% | −11,982−16.1% | Reduced |
| Swiss National Bank | 60,700 | $6.35M | 0.00% | −700−1.1% | Reduced |
| Redmile Group, LLC | 56,844 | $5.95M | 0.56% | +56,844 | New |
| Susquehanna International Group, LLP | 55,108 | $5.77M | 0.01% | +28,886+110.2% | Added |
| Macquarie Group Ltd | 54,917 | $5.75M | 0.01% | +24,520+80.7% | Added |
| Engineers Gate Manager LP | 54,576 | $5.71M | 0.10% | −7,368−11.9% | Reduced |
| Harbor Capital Advisors, Inc. | 54,233 | $5.68M | 0.26% | −30,714−36.2% | Reduced |
| Principal Financial Group Inc | 50,449 | $5.28M | 0.00% | +47,785+1,793.7% | Added |
| Polar Capital Holdings Plc | 49,773 | $5.21M | 0.03% | 00.0% | Unchanged |
| Castleark Management LLC | 48,290 | $5.05M | 0.18% | +48,290 | New |
| Banque Pictet & Cie SA | 46,545 | $4.87M | 0.05% | −12,719−21.5% | Reduced |
| Rhumbline Advisers | 45,946 | $4.81M | 0.00% | +2,995+7.0% | Added |
| Jane Street Group, LLC | 45,753 | $4.79M | 0.01% | +16,309+55.4% | Added |
| Cubist Systematic Strategies, LLC | 43,717 | $4.58M | 0.06% | +43,717 | New |
| Legal & General Group Plc | 42,911 | $4.49M | 0.00% | −2,015−4.5% | Reduced |
| Susquehanna Fundamental Investments, LLC | 42,414 | $4.44M | 0.07% | +550+1.3% | Added |
| Cinctive Capital Management LP | 37,260 | $3.90M | 0.31% | +29,119+357.7% | Added |
| Alliancebernstein L.P. | 36,847 | $3.86M | 0.00% | −2,870−7.2% | Reduced |
| Envestnet Asset Management Inc | 35,816 | $3.75M | 0.00% | +19,447+118.8% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 35,271 | $3.69M | 0.01% | +922+2.7% | Added |
| EFG Asset Management (North America) Corp. | 34,808 | $3.64M | 0.60% | +6,378+22.4% | Added |
| First Trust Advisors LP | 33,860 | $3.54M | 0.00% | +33,860 | New |
| RE Advisers Corp | 32,400 | $3.39M | 0.08% | +4,300+15.3% | Added |
| Squarepoint Ops LLC | 29,959 | $3.14M | 0.01% | +7,694+34.6% | Added |
| California State Teachers Retirement System | 28,818 | $3.02M | 0.00% | −400−1.4% | Reduced |
| Kampmann Melissa S. | 25,025 | $2.62M | 2.07% | +1,100+4.6% | Added |
| Fieldview Capital Management, LLC | 24,203 | $2.53M | 0.36% | +24,203 | New |
| Wells Fargo & Company | 23,993 | $2.51M | 0.00% | +3,021+14.4% | Added |
| Price T Rowe Associates Inc | 22,907 | $2.40M | 0.00% | +2,059+9.9% | Added |
| Invesco Ltd. | 22,216 | $2.33M | 0.00% | +3,016+15.7% | Added |
| Renaissance Technologies LLC | 22,100 | $2.31M | 0.00% | +22,100 | New |
| DLD Asset Management, LP | 21,960 | $2.30M | 0.33% | −12,240−35.8% | Reduced |
| Jefferies Financial Group Inc. | 21,844 | $2.29M | 0.04% | +21,844 | New |
| Russell Investments Group, Ltd. | 20,847 | $2.18M | 0.00% | −1,418−6.4% | Reduced |
| Trexquant Investment LP | 20,791 | $2.18M | 0.03% | +20,791 | New |
| Mutual of America Capital Management LLC | 20,727 | $2.17M | 0.02% | +69+0.3% | Added |
| HealthInvest Partners AB | 20,547 | $2.15M | 0.95% | +20,547 | New |
| B. Metzler seel. Sohn & Co. AG | 20,500 | $2.15M | 0.02% | 00.0% | Unchanged |