Irhythm HoldingsIRTC
13F holders, Q2 2026 (June 30)303holders −2
40new positions
41sold out
7famous investors
$118.98avg. 13F price*
At the end of Q2 2026, 303 institutions reported holding Irhythm Holdings Inc. (IRTC) in their 13F filings, down 2 from Q1 2026. 40 opened new positions and 41 sold out. The largest holders were BlackRock, Inc. ($355.1M), RTW Investments, LP ($259.6M) and Vanguard Portfolio Management LLC ($227.7M). 7 famous investors held it, including Israel Englander (0.1% of Millennium Management's portfolio), Steve Cohen (0.1% of Point72 Asset Management's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Irhythm Holdings Inc.
- CUSIP
- 450056106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 40 | $90.3M |
| Exits | 41 | $99.1M |
All 13F filers, Q1 2026 → Q2 2026: 4,297,481 shares bought and 4,346,569 shares sold, net −49,088 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 303 holders
| BlackRock, Inc. | 0.01% | Add +8.9% | 2,985,667 | $355.1M |
| RTW Investments, LP | 2.22% | Add +30.8% | 2,182,631 | $259.6M |
| Vanguard Portfolio Management LLC | 0.01% | Add +6.5% | 1,913,976 | $227.7M |
| Artisan Partners Limited Partnership | 0.32% | Add +14.4% | 1,660,307 | $197.5M |
| Vanguard Capital Management LLC | 0.00% | Add +1.2% | 1,463,211 | $174.0M |
| Millennium Management | 0.12% | Reduce -12.5% | 1,406,454 | $167.3M |
| FMR LLC | 0.01% | Reduce -12.5% | 1,191,982 | $141.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.02% | Reduce -9.8% | 944,517 | $112.4M |
| Geode Capital Management, LLC | 0.01% | Add +7.9% | 881,899 | $104.9M |
| Eventide Asset Management, LLC | 1.40% | Add +15.7% | 880,338 | $104.7M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.10% | Add +13.7% | 866,528 | $103.1M |
| State Street Corp. | 0.00% | Add +8.7% | 856,517 | $101.9M |
| Holocene Advisors, LP | 0.21% | Reduce -37.2% | 783,636 | $93.2M |
| JPMorgan Chase & Co. | 0.01% | Add +7.2% | 766,216 | $90.9M |
| Stephens Investment Management Group LLC | 0.88% | Add +23.5% | 693,437 | $82.5M |
| Fuller & Thaler Asset Management, Inc. | 0.22% | Add +1.6% | 685,496 | $81.5M |
| Braidwell LP | 2.99% | Add +7.2% | 654,262 | $77.8M |
| D. E. Shaw & Co. | 0.05% | Add +13.6% | 629,686 | $74.9M |
| Manufacturers Life Insurance Company, The | 0.05% | Add +43.7% | 561,251 | $66.8M |
| Blair William & Co. | 0.16% | Reduce -16.5% | 524,690 | $62.4M |
| Bank of America Corp. | 0.00% | Add +7.7% | 465,719 | $55.4M |
| Polar Capital Holdings Plc | 0.15% | Add +8.7% | 458,089 | $54.5M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Reduce -22.6% | 450,865 | $53.6M |
| Schroder Investment Management Group | 0.04% | Add +80.9% | 448,259 | $53.1M |
| Goldman Sachs Group Inc. | 0.00% | Add +4.0% | 362,346 | $43.1M |
| Loomis Sayles & Co. L P | 0.05% | Reduce -5.4% | 347,959 | $41.4M |
| Capital Research Global Investors | 0.01% | Reduce -34.2% | 335,209 | $39.9M |
| Allspring Global Investments Holdings, LLC | 0.06% | Reduce -35.8% | 300,057 | $37.4M |
| Northern Trust Corp. | 0.00% | Add +8.0% | 307,995 | $36.6M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +5.8% | 298,301 | $35.5M |
| Ameriprise Financial Inc. | 0.01% | Add +23.5% | 292,513 | $34.8M |
| Westfield Capital Management Co. LP | 0.11% | New | 288,924 | $34.4M |
| Jane Street Group, LLC | 0.02% | Add +143.9% | 275,262 | $32.7M |
| Point72 Asset Management | 0.05% | Reduce -54.4% | 273,162 | $32.5M |
| Qube Research & Technologies Ltd | 0.04% | Add +19.7% | 271,624 | $32.3M |
| Rock Springs Capital Management LP | 1.57% | Add +3.0% | 269,650 | $32.1M |
| Citigroup Inc. | 0.01% | Add +7.4% | 249,404 | $29.7M |
| Deutsche Bank AG | 0.01% | Add +10.4% | 238,193 | $28.3M |
| Vanguard Fiduciary Trust Co. | 0.01% | Add +5.5% | 235,963 | $28.1M |
| Perceptive Advisors LLC | 0.41% | Add +113.1% | 223,766 | $26.6M |
| Fred Alger Management, LLC | 0.09% | Reduce -21.2% | 220,789 | $26.3M |
| Oberweis Asset Management Inc./ | 0.50% | Add +29.5% | 202,004 | $24.0M |
| Ophir Asset Management Pty Ltd | 1.97% | Reduce -40.0% | 201,491 | $24.0M |
| Barclays PLC | 0.01% | Add +1.8% | 191,798 | $22.8M |
| Next Century Growth Investors LLC | 1.18% | Add +10.5% | 187,064 | $22.3M |
| Baron Capital (BAMCO) | 0.03% | Reduce -1.3% | 181,430 | $21.6M |
| Sei Investments Co. | 0.02% | Reduce -10.1% | 178,765 | $21.3M |
| First Light Asset Management, LLC | 1.21% | Reduce -0.6% | 167,092 | $19.9M |
| Massachusetts Financial Services Co. | 0.01% | Reduce -0.4% | 165,998 | $19.7M |
| Prosight Management, LP | 3.39% | Add +1555.0% | 165,500 | $19.7M |
| Schonfeld Strategic Advisors LLC | 0.10% | Add +72.5% | 152,062 | $18.1M |
| Norges Bank | 0.00% | — | 148,072 | $17.6M |
| Morgan Stanley | 0.00% | Reduce -37.8% | 147,998 | $17.6M |
| TimesSquare Capital Management, LLC | 0.24% | Add +51.5% | 137,311 | $16.3M |
| Raymond James Financial Inc. | 0.00% | Reduce -6.8% | 135,265 | $16.1M |
| Frontier Capital Management Co. LLC | 0.15% | Add +93.5% | 132,475 | $15.8M |
| Bank of New York Mellon Corp | 0.00% | Add +10.2% | 118,768 | $14.1M |
| Nuveen, LLC | 0.00% | Add +2.0% | 113,918 | $13.6M |
| Segall Bryant & Hamill, LLC | 0.15% | Add +7.7% | 107,467 | $12.8M |
| USS Investment Management Ltd | 0.05% | New | 106,957 | $12.7M |
| WCM Investment Management, LLC | 0.02% | Reduce -1.0% | 107,000 | $12.7M |
| Champlain Investment Partners, LLC | 0.30% | New | 97,015 | $11.5M |
| Trexquant Investment LP | 0.07% | Reduce -13.5% | 96,268 | $11.5M |
| Citadel Advisors | 0.01% | Reduce -15.6% | 95,931 | $11.4M |
| Federated Hermes, Inc. | 0.02% | Reduce -35.9% | 95,871 | $11.4M |
| New York State Common Retirement Fund | 0.01% | Reduce -9.4% | 92,993 | $11.1M |
| Integral Health Asset Management, LLC | 0.44% | New | 90,000 | $10.7M |
| Wellington Management Group LLP | 0.00% | Reduce -2.4% | 88,257 | $10.5M |
| Silvercrest Asset Management Group LLC | 0.07% | Add +39.1% | 85,830 | $10.2M |
| Granahan Investment Management, LLC | 0.36% | Reduce -12.6% | 83,903 | $10.0M |
| C WorldWide Group Holding A/S | 0.23% | No change | 80,000 | $9.5M |
| UBS Group AG | 0.00% | Reduce -15.5% | 77,665 | $9.2M |
| Peregrine Capital Management LLC | 0.29% | Add +14.9% | 75,724 | $9.0M |
| Squarepoint Ops LLC | 0.02% | Add +1065.8% | 71,862 | $8.5M |
| Jennison Associates LLC | 0.00% | Reduce -50.4% | 67,924 | $8.1M |
| Parkman Healthcare Partners LLC | 0.82% | Add +67.6% | 67,267 | $8.0M |
| Legal & General Group Plc | 0.00% | Add +26.6% | 65,304 | $7.8M |
| PFM Health Sciences, LP | 0.67% | New | 65,196 | $7.8M |
| Swiss National Bank | 0.00% | Add +1.7% | 64,800 | $7.7M |
| Neuberger Berman Group LLC | 0.01% | Add +3342.6% | 63,343 | $7.5M |
| Principal Financial Group Inc. | 0.00% | Add +11.7% | 59,733 | $7.1M |
| Amundi | 0.00% | Add +14.0% | 56,534 | $6.7M |
| Verition Fund Management LLC | 0.05% | Add +62.0% | 55,987 | $6.7M |
| Atle Fund Management AB | 1.73% | Add +142.4% | 54,102 | $6.4M |
| Susquehanna Portfolio Strategies, LLC | 0.09% | Reduce -35.3% | 49,120 | $5.8M |
| Canada Pension Plan Investment Board | 0.00% | Reduce -17.2% | 48,700 | $5.8M |
| Wells Fargo & Company | 0.00% | Add +78.1% | 47,903 | $5.7M |
| State of Wisconsin Investment Board | 0.01% | Reduce -7.0% | 44,699 | $5.3M |
| T. Rowe Price Associates Inc. | 0.00% | Add +24.0% | 44,239 | $5.3M |
| California State Teachers Retirement System | 0.00% | Add +18.1% | 44,067 | $5.2M |
| Man Group plc | 0.01% | Reduce -50.8% | 43,362 | $5.2M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Reduce -0.1% | 42,314 | $5.0M |
| Alliancebernstein L.P. | 0.00% | Add +17.3% | 42,595 | $5.0M |
| Rhumbline Advisers | 0.00% | Add +6.6% | 42,028 | $5.0M |
| Renaissance Technologies | 0.01% | Reduce -28.4% | 38,500 | $4.6M |
| Sirios Capital Management L P | 0.50% | Reduce -0.8% | 34,455 | $4.1M |
| Engineers Gate Manager LP | 0.05% | Reduce -38.3% | 30,418 | $3.6M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | Add +5.8% | 30,320 | $3.6M |
| EFG International AG | 0.06% | Reduce -1.9% | 28,913 | $3.4M |
| Sectoral Asset Management Inc. | 2.16% | New | 26,070 | $3.1M |
"% of holder's portfolio" is IRTC's weight in each manager's 13F, not the share of Irhythm Holdings Inc. the manager owns.