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, Q3 2021
Institutional positions in iRhythm Holdings, Inc. as of Sep 30, 2021. 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
- 186
- +5 vs. Q2 2021
- Shares held
- 28.1M
- −874.1K (−3.0%) vs. Q2 2021
- Total value
- $1.64B
- −$275.8M (−14.4%) vs. Q2 2021
- New holders
- 35
- 52 more added
- Sold out
- 30
- 65 more reduced
2 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding iRhythm Holdings, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Sands Capital Management, LLC | 3,293,424 | $192.9M | 0.32% | +63,605+2.0% | Added |
| Vanguard Group Inc | 2,664,017 | $156.0M | 0.00% | −54,785−2.0% | Reduced |
| BlackRock Inc. | 2,061,012 | $120.7M | 0.00% | −16,772−0.8% | Reduced |
| Mackenzie Financial Corp | 1,902,051 | $111.4M | 0.16% | +88,698+4.9% | Added |
| JPMorgan Chase & Co | 1,791,775 | $104.9M | 0.01% | +382,498+27.1% | Added |
| Credit Suisse AG | 1,167,329 | $68.4M | 0.06% | +1,770+0.2% | Added |
| Wellington Management Group LLP | 1,114,699 | $65.3M | 0.01% | +20,364+1.9% | Added |
| State Street Corp | 877,064 | $51.4M | 0.00% | +63,109+7.8% | Added |
| Blair William & Co | 690,224 | $40.4M | 0.14% | +55,540+8.8% | Added |
| Citadel Advisors LLC | 615,715 | $36.1M | 0.04% | −311,009−33.6% | Reduced |
| Fiera Capital Corp | 602,042 | $35.3M | 0.09% | −9,985−1.6% | Reduced |
| Vident Investment Advisory, LLC | 577,585 | $33.8M | 1.02% | +164,971+40.0% | Added |
| Geode Capital Management, LLC | 492,004 | $28.8M | 0.00% | −9,535−1.9% | Reduced |
| Legal & General Group Plc | 489,847 | $28.7M | 0.01% | +131,601+36.7% | Added |
| Camber Capital Management LP | 475,000 | $27.8M | 1.03% | +475,000 | New |
| Rock Springs Capital Management LP | 448,000 | $26.2M | 0.55% | 00.0% | Unchanged |
| Invesco Ltd. | 432,175 | $25.3M | 0.01% | −10,518−2.4% | Reduced |
| Bessemer Group Inc | 425,638 | $24.9M | 0.05% | 00.0% | Unchanged |
| Holocene Advisors, LP | 375,474 | $22.0M | 0.13% | +300,808+402.9% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 356,808 | $20.9M | 0.08% | −1,025−0.3% | Reduced |
| Assenagon Asset Management S.A. | 350,521 | $20.5M | 0.08% | −160,394−31.4% | Reduced |
| Norges Bank | 350,336 | $20.5M | 0.00% | −224,736−39.1% | Reduced |
| Bank of New York Mellon Corp | 344,202 | $20.2M | 0.00% | +126,196+57.9% | Added |
| Price T Rowe Associates Inc | 342,092 | $20.0M | 0.00% | −227,617−40.0% | Reduced |
| Millennium Management LLC | 312,219 | $18.3M | 0.02% | −238,954−43.4% | Reduced |
| Northern Trust Corp | 305,319 | $17.9M | 0.00% | −5,730−1.8% | Reduced |
| Stephens Investment Management Group LLC | 273,682 | $16.0M | 0.22% | −1,324−0.5% | Reduced |
| Renaissance Technologies LLC | 242,100 | $14.2M | 0.02% | −93,500−27.9% | Reduced |
| Ameriprise Financial Inc | 237,370 | $13.9M | 0.00% | +211,718+825.3% | Added |
| Voloridge Investment Management, LLC | 234,668 | $13.7M | 0.09% | −53,937−18.7% | Reduced |
| Charles Schwab Investment Management Inc | 204,841 | $12.0M | 0.00% | −72,250−26.1% | Reduced |
| Morgan Stanley | 190,678 | $11.2M | 0.00% | −32,160−14.4% | Reduced |
| D. E. Shaw & Co., Inc. | 174,906 | $10.2M | 0.01% | +142,646+442.2% | Added |
| New York State Common Retirement Fund | 161,940 | $9.48M | 0.01% | −4,937−3.0% | Reduced |
| Balyasny Asset Management LLC | 159,709 | $9.35M | 0.04% | +115,475+261.1% | Added |
| Mirae Asset Global Investments Co., Ltd. | 157,576 | $9.23M | 0.02% | −30,593−16.3% | Reduced |
| Pura Vida Investments, LLC | 130,000 | $7.61M | 0.57% | −10,000−7.1% | Reduced |
| Nuveen Asset Management, LLC | 121,200 | $7.10M | 0.00% | −22,047−15.4% | Reduced |
| Bank of America Corp | 118,011 | $6.91M | 0.00% | −2,591−2.1% | Reduced |
| Eversept Partners, LP | 113,854 | $6.67M | 0.54% | +113,854 | New |
| Wells Fargo & Company | 100,446 | $5.88M | 0.00% | +22,826+29.4% | Added |
| Capital Research Global Investors | 100,000 | $5.86M | 0.00% | −956,827−90.5% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 99,772 | $5.84M | 0.36% | +21,573+27.6% | Added |
| Clough Capital Partners L P | 89,700 | $5.25M | 0.33% | +89,700 | New |
| Polar Asset Management Partners Inc. | 83,700 | $4.90M | 0.06% | +83,700 | New |
| Alberta Investment Management Corp | 83,056 | $4.86M | 0.04% | 00.0% | Unchanged |
| C WorldWide Group Holding A/S | 80,000 | $4.68M | 0.05% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 78,484 | $4.60M | 0.01% | +36,920+88.8% | Added |
| Exchange Traded Concepts, LLC | 72,776 | $4.26M | 0.11% | +22,851+45.8% | Added |
| Two Sigma Investments, LP | 66,505 | $3.90M | 0.01% | −417,212−86.3% | Reduced |
| Federated Hermes, Inc. | 66,415 | $3.89M | 0.01% | +66,415 | New |
| Skandinaviska Enskilda Banken AB (publ) | 65,251 | $3.82M | 0.02% | +57,363+727.2% | Added |
| Bank of Montreal | 65,646 | $3.82M | 0.00% | +65,646 | New |
| Swiss National Bank | 64,800 | $3.79M | 0.00% | +1,200+1.9% | Added |
| State of Wisconsin Investment Board | 60,500 | $3.54M | 0.01% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 60,271 | $3.53M | 0.07% | +60,271 | New |
| Landscape Capital Management, L.L.C. | 57,155 | $3.35M | 0.47% | +8,398+17.2% | Added |
| Parian Global Management LP | 56,456 | $3.31M | 2.37% | +56,456 | New |
| Alliancebernstein L.P. | 48,765 | $2.86M | 0.00% | −66,680−57.8% | Reduced |
| Russell Investments Group, Ltd. | 44,164 | $2.58M | 0.00% | +42,173+2,118.2% | Added |
| Goldman Sachs Group Inc | 40,767 | $2.39M | 0.00% | −24,832−37.9% | Reduced |
| UBS Asset Management Americas Inc | 40,084 | $2.35M | 0.00% | −673−1.7% | Reduced |
| California State Teachers Retirement System | 39,919 | $2.34M | 0.00% | −728−1.8% | Reduced |
| Prosight Management, LP | 37,396 | $2.19M | 1.28% | +17,196+85.1% | Added |
| Duality Advisers, LP | 36,386 | $2.13M | 0.16% | −10,162−21.8% | Reduced |
| Jane Street Group, LLC | 35,054 | $2.05M | 0.01% | −36,470−51.0% | Reduced |
| Parkman Healthcare Partners LLC | 32,500 | $1.90M | 0.48% | +32,500 | New |
| Rhumbline Advisers | 32,111 | $1.88M | 0.00% | +92+0.3% | Added |
| AXA S.A. | 31,507 | $1.84M | 0.01% | 00.0% | Unchanged |
| Cubist Systematic Strategies, LLC | 30,344 | $1.78M | 0.02% | −99,523−76.6% | Reduced |
| Jump Financial, LLC | 30,203 | $1.77M | 0.13% | −2,997−9.0% | Reduced |
| Royal Bank of Canada | 28,738 | $1.68M | 0.00% | +1,602+5.9% | Added |
| Bridgewater Associates, LP | 28,560 | $1.67M | 0.01% | −1,654−5.5% | Reduced |
| Mutual of America Capital Management LLC | 28,074 | $1.64M | 0.02% | −404−1.4% | Reduced |
| Crestline Management, LP | 27,680 | $1.62M | 0.15% | +27,680 | New |
| Man Group plc | 27,120 | $1.59M | 0.01% | −45,689−62.8% | Reduced |
| Parametric Portfolio Associates LLC | 26,157 | $1.53M | 0.00% | +4,568+21.2% | Added |
| TD Asset Management Inc | 24,453 | $1.43M | 0.00% | −4,481−15.5% | Reduced |
| Simplex Trading, LLC | 22,310 | $1.42M | 0.05% | −1,900−7.8% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 23,075 | $1.35M | 0.01% | −5,030−17.9% | Reduced |
| AQR Capital Management LLC | 22,833 | $1.34M | 0.00% | +8,255+56.6% | Added |
| Brinker Capital Investments, LLC | 18,984 | $1.26M | 0.02% | 00.0% | Unchanged |
| Walleye Capital LLC | 20,655 | $1.21M | 0.04% | +6,584+46.8% | Added |
| Deutsche Bank AG | 20,521 | $1.20M | 0.00% | −37,763−64.8% | Reduced |
| EULAV Asset Management | 20,300 | $1.19M | 0.03% | 00.0% | Unchanged |
| Panagora Asset Management Inc | 18,338 | $1.07M | 0.01% | +8,096+79.0% | Added |
| Gilder Gagnon Howe & Co LLC | 17,998 | $1.05M | 0.01% | +17,994+449,850.0% | Added |
| Dimensional Fund Advisors LP | 16,327 | $956.0K | 0.00% | +1,083+7.1% | Added |
| American International Group, Inc. | 16,150 | $946.0K | 0.01% | −384−2.3% | Reduced |
| Cinctive Capital Management LP | 16,000 | $937.0K | 0.05% | +16,000 | New |
| Manufacturers Life Insurance Company, The | 15,437 | $904.0K | 0.00% | −1,150−6.9% | Reduced |
| Engineers Gate Manager LP | 15,323 | $897.0K | 0.05% | −13,379−46.6% | Reduced |
| GAM Holding AG | 15,296 | $896.0K | 0.04% | +2,906+23.5% | Added |
| Envestnet Asset Management Inc | 14,777 | $865.0K | 0.00% | +1,006+7.3% | Added |
| Lombard Odier Asset Management (USA) Corp | 14,000 | $820.0K | 0.12% | +14,000 | New |
| Citigroup Inc | 13,317 | $780.0K | 0.00% | −307−2.3% | Reduced |
| Winton Group Ltd | 13,007 | $762.0K | 0.04% | +3,672+39.3% | Added |
| State Board of Administration of Florida Retirement System | 12,061 | $706.0K | 0.00% | 00.0% | Unchanged |
| Principal Financial Group Inc | 11,988 | $702.0K | 0.00% | +538+4.7% | Added |
| Stifel Financial Corp | 11,633 | $681.0K | 0.00% | +38+0.3% | Added |