Irhythm HoldingsIRTC
13F holders, Q3 2024 (September 30)242holders +14
45new positions
32sold out
5famous investors
$74.23avg. 13F price*
At the end of Q3 2024, 242 institutions reported holding Irhythm Holdings Inc. (IRTC) in their 13F filings, up 14 from Q2 2024. 45 opened new positions and 32 sold out. The largest holders were Vanguard Group Inc. ($231.5M), Artisan Partners Limited Partnership ($206.4M) and BlackRock, Inc. ($190.0M). 5 famous investors held it, including Steve Cohen (0.1% of Point72 Asset Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Irhythm Holdings Inc.
- CUSIP
- 450056106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 45 | $56.7M |
| Exits | 32 | $46.6M |
All 13F filers, Q2 2024 → Q3 2024: 2,951,318 shares bought and 4,260,311 shares sold, net −1,308,993 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 242 holders
| Vanguard Group Inc. | 0.00% | Add +4.6% | 3,117,928 | $231.5M |
| Artisan Partners Limited Partnership | 0.31% | Add +3.5% | 2,780,259 | $206.4M |
| BlackRock, Inc. | 0.00% | — | 2,559,645 | $190.0M |
| Sands Capital Management, LLC | 0.48% | Reduce -0.1% | 2,122,891 | $157.6M |
| Capital Research Global Investors | 0.03% | Reduce -21.6% | 1,955,000 | $145.1M |
| Mackenzie Financial Corp. | 0.15% | Reduce -0.6% | 1,419,834 | $105.4M |
| Alliancebernstein L.P. | 0.03% | Reduce -4.4% | 1,212,471 | $90.0M |
| JPMorgan Chase & Co. | 0.01% | Reduce -0.8% | 939,674 | $69.8M |
| State Street Corp. | 0.00% | Add +1.3% | 908,843 | $67.5M |
| Braidwell LP | 2.50% | Add +48.7% | 782,557 | $58.1M |
| Eventide Asset Management, LLC | 0.94% | Add +170.8% | 736,721 | $54.7M |
| Geode Capital Management, LLC | 0.00% | Add +0.8% | 733,308 | $54.5M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.13% | Add +38.1% | 707,175 | $52.5M |
| Champlain Investment Partners, LLC | 0.30% | Reduce -9.8% | 667,101 | $49.5M |
| Blair William & Co. | 0.14% | Reduce -19.4% | 644,441 | $47.8M |
| Westfield Capital Management Co. LP | 0.18% | Reduce -13.3% | 528,291 | $39.2M |
| Allspring Global Investments Holdings, LLC | 0.06% | Add +9.3% | 519,973 | $38.6M |
| Slate Path Capital LP | 0.64% | No change | 510,500 | $37.9M |
| Bank of America Corp. | 0.00% | Add +16.2% | 411,551 | $30.6M |
| Stephens Investment Management Group LLC | 0.41% | Reduce -4.8% | 400,325 | $29.7M |
| Bank of New York Mellon Corp | 0.01% | Reduce -0.5% | 398,894 | $29.6M |
| Rock Springs Capital Management LP | 0.96% | No change | 397,500 | $29.5M |
| FMR LLC | 0.00% | Add +7.0% | 388,074 | $28.8M |
| Fiera Capital Corp | 0.09% | Reduce -2.9% | 381,644 | $28.3M |
| Alyeska Investment Group, L.P. | 0.14% | Add +21.8% | 378,616 | $28.1M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Reduce -5.8% | 363,526 | $27.0M |
| Schroder Investment Management Group | 0.02% | Add +4.0% | 326,400 | $24.2M |
| Fred Alger Management, LLC | 0.11% | Add +24.4% | 314,117 | $23.3M |
| Morgan Stanley | 0.00% | Reduce -12.9% | 308,623 | $22.9M |
| Sei Investments Co. | 0.03% | Add +7.2% | 300,295 | $22.3M |
| Point72 Asset Management | 0.07% | Reduce -49.3% | 272,082 | $20.2M |
| Northern Trust Corp. | 0.00% | Add +0.7% | 268,518 | $19.9M |
| Bessemer Group Inc. | 0.03% | Add +0.0% | 268,281 | $19.9M |
| Millennium Management | 0.02% | Reduce -46.7% | 264,500 | $19.6M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +1.7% | 255,703 | $19.0M |
| New York State Common Retirement Fund | 0.02% | Reduce -5.3% | 216,203 | $16.1M |
| Wellington Management Group LLP | 0.00% | Add +6.2% | 213,949 | $15.9M |
| Barclays PLC | 0.01% | Add +34.4% | 209,247 | $15.5M |
| Deutsche Bank AG | 0.01% | Add +1.9% | 204,826 | $15.2M |
| Citigroup Inc. | 0.01% | Reduce -3.0% | 199,661 | $14.8M |
| Manufacturers Life Insurance Company, The | 0.01% | Add +7.3% | 196,423 | $14.6M |
| Goldman Sachs Group Inc. | 0.00% | Add +1.7% | 188,342 | $14.0M |
| Holocene Advisors, LP | 0.05% | Reduce -82.6% | 180,985 | $13.4M |
| Balyasny Asset Management L.P. | 0.03% | Add +264.1% | 143,611 | $10.7M |
| WCM Investment Management, LLC | 0.02% | Reduce -0.1% | 141,133 | $10.3M |
| Segall Bryant & Hamill, LLC | 0.13% | Add +2.1% | 132,602 | $9.8M |
| Loomis Sayles & Co. L P | 0.01% | Reduce -68.0% | 118,502 | $8.8M |
| Eagle Asset Management Inc. | 0.04% | Add +44.9% | 100,655 | $8.7M |
| Neuberger Berman Group LLC | 0.01% | Reduce -7.5% | 101,180 | $7.5M |
| Jane Street Group, LLC | 0.01% | Add +3.3% | 100,262 | $7.4M |
| Peregrine Capital Management LLC | 0.22% | Add +20.2% | 98,043 | $7.3M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -38.9% | 97,124 | $7.2M |
| Silvercrest Asset Management Group LLC | 0.05% | Reduce -0.6% | 95,484 | $7.1M |
| Alberta Investment Management Corp | 0.06% | No change | 94,714 | $7.0M |
| Polar Asset Management Partners Inc. | 0.24% | Add +28.5% | 93,300 | $6.9M |
| Cubist Systematic Strategies, LLC | 0.10% | New | 88,863 | $6.6M |
| Marshall Wace, LLP | 0.01% | New | 86,763 | $6.4M |
| Altium Capital Management LLC | 1.91% | New | 86,000 | $6.4M |
| Gilder Gagnon Howe & Co. LLC | 0.07% | Reduce -36.1% | 80,759 | $6.0M |
| Susquehanna International Group, LLP | 0.01% | Add +3498.8% | 80,720 | $6.0M |
| C WorldWide Group Holding A/S | 0.06% | No change | 80,000 | $5.9M |
| Harbor Capital Advisors, Inc. | 0.26% | Add +272.0% | 79,938 | $5.9M |
| Amundi | 0.00% | Add +5295.9% | 94,967 | $5.7M |
| Frontier Capital Management Co. LLC | 0.05% | New | 76,404 | $5.7M |
| Granahan Investment Management, LLC | 0.21% | New | 72,428 | $5.4M |
| Engineers Gate Manager LP | 0.10% | New | 72,309 | $5.4M |
| State of Wisconsin Investment Board | 0.01% | Add +1.0% | 70,580 | $5.2M |
| Ameriprise Financial Inc. | 0.00% | Add +3.7% | 62,726 | $4.7M |
| Western Standard LLC | 4.25% | New | 61,082 | $4.5M |
| Swiss National Bank | 0.00% | Reduce -1.0% | 60,700 | $4.5M |
| DLD Asset Management, LP | 10.96% | Add +30.8% | 57,750 | $4.3M |
| Polar Capital Holdings Plc | 0.02% | Reduce -25.5% | 57,165 | $4.2M |
| Citadel Advisors | 0.00% | Reduce -66.5% | 55,046 | $4.1M |
| Wells Fargo & Company | 0.00% | Reduce -8.0% | 52,734 | $3.9M |
| Banque Pictet & Cie SA | 0.04% | Add +34.4% | 52,568 | $3.9M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -2.6% | 51,213 | $3.8M |
| Legal & General Group Plc | 0.00% | Add +11.7% | 46,467 | $3.4M |
| Jump Financial, LLC | 0.07% | Add +810.8% | 44,928 | $3.3M |
| Rhumbline Advisers | 0.00% | Reduce -4.8% | 43,470 | $3.2M |
| UBS Group AG | 0.00% | Add +69.0% | 41,639 | $3.1M |
| Comerica Bank | 0.01% | Reduce -14.7% | 38,523 | $2.9M |
| Susquehanna Portfolio Strategies, LLC | 0.19% | Reduce -20.7% | 36,499 | $2.7M |
| Squarepoint Ops LLC | 0.01% | Add +300.4% | 32,745 | $2.4M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.01% | Reduce -0.4% | 32,606 | $2.4M |
| AXA S.A. | 0.01% | Reduce -1.6% | 32,473 | $2.4M |
| Macquarie Group Ltd. | 0.00% | Add +20.7% | 31,007 | $2.3M |
| California State Teachers Retirement System | 0.00% | Reduce -3.1% | 29,435 | $2.2M |
| State of New Jersey Common Pension Fund D | 0.01% | Add +32.5% | 28,414 | $2.1M |
| Kampmann Melissa S. | 1.37% | No change | 26,115 | $1.9M |
| Russell Investments Group, Ltd. | 0.00% | Add +81.9% | 24,851 | $1.8M |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | 0.05% | Add +34.8% | 24,726 | $1.8M |
| Twinbeech Capital LP | 0.03% | New | 24,281 | $1.8M |
| Royal Bank of Canada | 0.00% | Add +4.0% | 23,359 | $1.7M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -89.3% | 23,126 | $1.7M |
| Perceptive Advisors LLC | 0.04% | Reduce -35.8% | 22,591 | $1.7M |
| Simplex Trading, LLC | 0.05% | Add +1122.9% | 21,805 | $1.6M |
| Homestead Advisers Corp | 0.04% | No change | 21,300 | $1.6M |
| Mutual of America Capital Management LLC | 0.02% | Reduce -0.9% | 20,676 | $1.5M |
| B. Metzler seel. Sohn & Co. Holding AG | 0.02% | — | 20,500 | $1.5M |
| B. Metzler seel. Sohn & Co. AG | 0.02% | No change | 20,500 | $1.5M |
"% of holder's portfolio" is IRTC's weight in each manager's 13F, not the share of Irhythm Holdings Inc. the manager owns.