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; 329 institutions reported holding it in 13F filings for Q2 2026, worth $4.97B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in iRhythm Holdings, Inc. as of Jun 30, 2026. 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
- 329
- +4 vs. Q1 2026
- Shares held
- 62.0M
- −7.25M (−10.5%) vs. Q1 2026
- Total value
- $4.97B
- +$138.1M (+2.9%) vs. Q1 2026
- New holders
- 49
- 120 more added
- Sold out
- 45
- 93 more reduced
6 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | 329 | $4.97B |
| Q1 2026 | 331 | $4.84B |
| Q4 2025 | 358 | $7.18B |
| Q3 2025 | 357 | $6.88B |
| Q2 2025 | 319 | $6.24B |
| Q1 2025 | 273 | $4.54B |
| Q4 2024 | 227 | $3.27B |
| Q3 2024 | 242 | $2.62B |
| Q2 2024 | 228 | $3.93B |
| Q1 2024 | 253 | $4.19B |
| Q4 2023 | 222 | $3.71B |
| Q3 2023 | 224 | $3.14B |
| Q2 2023 | 203 | $3.50B |
| Q1 2023 | 209 | $4.49B |
| Q4 2022 | 208 | $2.93B |
| Q3 2022 | 233 | $3.87B |
| Q2 2022 | 242 | $3.29B |
| Q1 2022 | 222 | $4.80B |
| Q4 2021 | 213 | $3.43B |
| Q3 2021 | 186 | $1.64B |
| Q2 2021 | 183 | $1.93B |
| Q1 2021 | 217 | $4.33B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding iRhythm Holdings, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 2,985,667 | $389.0M | 0.01% | +244,162+8.9% | Added |
| RTW Investments, LP | 2,182,631 | $259.6M | 2.22% | +514,131+30.8% | Added |
| Vanguard Portfolio Management LLC | 1,913,976 | $227.7M | 0.01% | +117,604+6.5% | Added |
| Artisan Partners Limited Partnership | 1,660,307 | $197.5M | 0.32% | +209,400+14.4% | Added |
| UBS Asset Management Americas Inc | 944,517 | $177.4M | 0.03% | −102,935−9.8% | Reduced |
| Vanguard Capital Management LLC | 1,463,211 | $174.0M | 0.00% | +17,501+1.2% | Added |
| Millennium Management LLC | 1,406,454 | $167.3M | 0.11% | −201,560−12.5% | Reduced |
| FMR LLC | 1,191,982 | $150.2M | 0.01% | −169,937−12.5% | Reduced |
| State Street Corp | 856,517 | $120.5M | 0.00% | +68,215+8.7% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 866,528 | $105.8M | 0.11% | −2,395,534−73.4% | Reduced |
| Geode Capital Management, LLC | 881,899 | $104.9M | 0.01% | +64,789+7.9% | Added |
| Eventide Asset Management, LLC | 880,338 | $104.7M | 1.40% | +119,513+15.7% | Added |
| Tenor Capital Management Co., L.P. | – | $97.1M | 1.37% | – | – |
| JPMorgan Chase & Co | 766,216 | $95.1M | 0.01% | +51,320+7.2% | Added |
| Holocene Advisors, LP | 783,636 | $93.2M | 0.21% | −465,022−37.2% | Reduced |
| Stephens Investment Management Group LLC | 693,437 | $82.5M | 0.88% | +131,907+23.5% | Added |
| Fuller & Thaler Asset Management, Inc. | 685,496 | $81.5M | 0.22% | +10,798+1.6% | Added |
| Braidwell LP | 654,262 | $77.8M | 2.88% | +44,070+7.2% | Added |
| D. E. Shaw & Co., Inc. | 629,686 | $74.9M | 0.05% | +75,420+13.6% | Added |
| Wolverine Asset Management LLC | – | $73.2M | 0.96% | – | – |
| Manufacturers Life Insurance Company, The | 561,251 | $66.8M | 0.05% | +170,674+43.7% | Added |
| Blair William & Co | 524,690 | $62.4M | 0.16% | −103,695−16.5% | Reduced |
| Bank of America Corp | 465,719 | $55.9M | 0.00% | +33,180+7.7% | Added |
| Polar Capital Holdings Plc | 458,089 | $54.5M | 0.15% | +36,477+8.7% | Added |
| Arrowstreet Capital, Limited Partnership | 450,865 | $53.6M | 0.02% | −132,014−22.6% | Reduced |
| Schroder Investment Management Group | 448,259 | $53.1M | 0.04% | +200,513+80.9% | Added |
| Advent Capital Management | – | $52.5M | 1.20% | – | New |
| LMR Partners LLP | – | $46.8M | 0.34% | – | – |
| Citadel Advisors LLC | 95,931 | $46.3M | 0.03% | −17,669−15.6% | Reduced |
| Opti Capital Management, LP | – | $45.3M | 2.77% | – | – |
| Ameriprise Financial Inc | 292,513 | $44.6M | 0.01% | +55,727+23.5% | Added |
| Goldman Sachs Group Inc | 362,346 | $43.1M | 0.00% | +13,783+4.0% | Added |
| DeepCurrents Investment Group LLC | – | $42.5M | 1.46% | – | – |
| Steelhead Partners LLC | – | $42.1M | 3.00% | – | – |
| Loomis Sayles & Co L P | 347,959 | $41.4M | 0.05% | −19,935−5.4% | Reduced |
| Capital Research Global Investors | 335,209 | $39.9M | 0.01% | −174,381−34.2% | Reduced |
| Allspring Global Investments Holdings, LLC | 300,057 | $37.4M | 0.06% | −167,056−35.8% | Reduced |
| Northern Trust Corp | 307,995 | $36.6M | 0.00% | +22,909+8.0% | Added |
| Mackay Shields LLC | – | $35.9M | 1.20% | – | – |
| Charles Schwab Investment Management Inc | 298,301 | $35.5M | 0.00% | +16,404+5.8% | Added |
| Westfield Capital Management Co LP | 288,924 | $34.4M | 0.11% | +288,924 | New |
| Jane Street Group, LLC | 275,262 | $32.7M | 0.02% | +162,398+143.9% | Added |
| Point72 Asset Management, L.P. | 273,162 | $32.5M | 0.05% | −326,243−54.4% | Reduced |
| Qube Research & Technologies Ltd | 271,624 | $32.3M | 0.04% | +44,740+19.7% | Added |
| Rock Springs Capital Management LP | 269,650 | $32.1M | 1.57% | +7,900+3.0% | Added |
| Citigroup Inc | 249,404 | $29.7M | 0.01% | +17,281+7.4% | Added |
| Deutsche Bank AG | 238,193 | $28.3M | 0.01% | +22,435+10.4% | Added |
| Vanguard Fiduciary Trust Co | 235,963 | $28.1M | 0.01% | +12,264+5.5% | Added |
| Perceptive Advisors LLC | 223,766 | $26.6M | 0.41% | +118,740+113.1% | Added |
| Fred Alger Management, LLC | 220,789 | $26.3M | 0.09% | −59,251−21.2% | Reduced |
| Tudor Investment Corp Et Al | 21,750,000 | $24.0M | 0.10% | +1,750,000+8.8% | Added |
| Oberweis Asset Management Inc | 202,004 | $24.0M | 0.50% | +46,000+29.5% | Added |
| Ophir Asset Management Pty Ltd | 201,491 | $24.0M | 1.97% | −134,316−40.0% | Reduced |
| Barclays PLC | 191,798 | $23.2M | 0.01% | +3,453+1.8% | Added |
| Next Century Growth Investors LLC | 187,064 | $22.3M | 1.18% | +17,758+10.5% | Added |
| Bamco Inc | 181,430 | $21.6M | 0.03% | −2,470−1.3% | Reduced |
| SEI Investments Co | 447,765 | $21.6M | 0.02% | −20,139−4.3% | Reduced |
| First Light Asset Management, LLC | 167,092 | $19.9M | 1.21% | −1,024−0.6% | Reduced |
| Massachusetts Financial Services Co | 165,998 | $19.7M | 0.01% | −639−0.4% | Reduced |
| Prosight Management, LP | 165,500 | $19.7M | 3.39% | +155,500+1,555.0% | Added |
| Schonfeld Strategic Advisors LLC | 152,062 | $18.1M | 0.10% | +63,929+72.5% | Added |
| Morgan Stanley | 147,998 | $17.6M | 0.00% | −89,801−37.8% | Reduced |
| Norges Bank | 148,072 | $17.6M | 0.00% | +148,072 | New |
| TimesSquare Capital Management, LLC | 137,311 | $16.3M | 0.24% | +46,659+51.5% | Added |
| Raymond James Financial Inc | 135,265 | $16.1M | 0.00% | −9,858−6.8% | Reduced |
| Frontier Capital Management Co LLC | 132,475 | $15.8M | 0.15% | +64,021+93.5% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 13,803 | $15.6M | 0.02% | −1,626−10.5% | Reduced |
| Bank of New York Mellon Corp | 318,768 | $14.3M | 0.00% | +10,979+3.6% | Added |
| Nuveen, LLC | 113,918 | $13.6M | 0.00% | +2,186+2.0% | Added |
| Mirabaud Asset Management (France) SAS | – | $12.9M | 5.79% | – | New |
| Segall Bryant & Hamill, LLC | 107,467 | $12.8M | 0.15% | +7,671+7.7% | Added |
| USS Investment Management Ltd | 106,957 | $12.7M | 0.05% | +106,957 | New |
| WCM Investment Management, LLC | 107,000 | $12.7M | 0.02% | −1,078−1.0% | Reduced |
| Champlain Investment Partners, LLC | 97,015 | $11.5M | 0.30% | +97,015 | New |
| Trexquant Investment LP | 96,268 | $11.5M | 0.07% | −15,043−13.5% | Reduced |
| Federated Hermes, Inc. | 95,871 | $11.4M | 0.02% | −53,588−35.9% | Reduced |
| New York State Common Retirement Fund | 92,993 | $11.1M | 0.01% | −9,601−9.4% | Reduced |
| Integral Health Asset Management, LLC | 90,000 | $10.7M | 0.44% | +90,000 | New |
| Wellington Management Group LLP | 88,257 | $10.5M | 0.00% | −2,203−2.4% | Reduced |
| PenderFund Capital Management Ltd. | – | $10.2M | 1.31% | – | New |
| Silvercrest Asset Management Group LLC | 85,830 | $10.2M | 0.07% | +24,149+39.2% | Added |
| Granahan Investment Management Inc | 83,903 | $9.98M | 0.36% | −12,119−12.6% | Reduced |
| State of Wisconsin Investment Board | 4,044,699 | $9.70M | 0.02% | +996,649+32.7% | Added |
| C WorldWide Group Holding A/S | 80,000 | $9.52M | 0.23% | 00.0% | Unchanged |
| UBS Group AG | 77,665 | $9.28M | 0.00% | −14,238−15.5% | Reduced |
| Peregrine Capital Management LLC | 75,724 | $9.01M | 0.29% | +9,849+15.0% | Added |
| Squarepoint Ops LLC | 71,862 | $8.55M | 0.02% | +65,698+1,065.8% | Added |
| Jennison Associates LLC | 67,924 | $8.08M | 0.00% | −69,116−50.4% | Reduced |
| Parkman Healthcare Partners LLC | 67,267 | $8.00M | 0.82% | +27,142+67.6% | Added |
| Legal & General Group Plc | 65,304 | $7.77M | 0.00% | +13,735+26.6% | Added |
| PFM Health Sciences, LP | 65,196 | $7.76M | 0.67% | +65,196 | New |
| Swiss National Bank | 64,800 | $7.71M | 0.00% | +1,100+1.7% | Added |
| Neuberger Berman Group LLC | 63,343 | $7.53M | 0.01% | +61,503+3,342.6% | Added |
| Man Group plc | 43,362 | $7.23M | 0.01% | −44,848−50.8% | Reduced |
| Principal Financial Group Inc | 59,733 | $7.11M | 0.00% | +6,257+11.7% | Added |
| Amundi | 56,534 | $6.72M | 0.00% | +6,959+14.0% | Added |
| Verition Fund Management LLC | 55,987 | $6.66M | 0.05% | +21,422+62.0% | Added |
| Lombard Odier Asset Management (Europe) Ltd | – | $6.46M | 0.28% | – | – |
| HealthInvest Partners AB | 54,102 | $6.44M | 1.73% | +31,780+142.4% | Added |
| Wells Fargo & Company | 47,903 | $6.36M | 0.00% | +21,005+78.1% | Added |