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; 304 institutions reported holding it in 13F filings for Q2 2026, worth $4.24B in total; no superinvestor holds it.
13F holders, Q1 2022
Institutional positions in iRhythm Holdings, Inc. as of Mar 31, 2022. 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
- 222
- +13 vs. Q4 2021
- Shares held
- 30.4M
- +1.22M (+4.2%) vs. Q4 2021
- Total value
- $4.78B
- +$1.35B (+39.3%) vs. Q4 2021
- New holders
- 40
- 74 more added
- Sold out
- 27
- 79 more reduced
4 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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 | 304 | $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 2022
Shares, value and share of portfolio for each institution holding iRhythm Holdings, Inc.; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Citadel Advisors LLC | 399,406 | $62.9M | 0.07% | −109,188−21.5% | Reduced |
| Rock Springs Capital Management LP | 436,000 | $68.7M | 1.73% | +3,000+0.7% | Added |
| Bessemer Group Inc | 446,264 | $70.3M | 0.15% | +20,626+4.8% | Added |
| Janus Henderson Group PLC | 473,475 | $74.6M | 0.04% | −20,161−4.1% | Reduced |
| PFM Health Sciences, LP | 493,721 | $77.7M | 3.00% | −30,261−5.8% | Reduced |
| Geode Capital Management, LLC | 523,231 | $82.4M | 0.01% | +15,231+3.0% | Added |
| Lord, Abbett & Co. LLC | 538,035 | $84.7M | 0.23% | +538,035 | New |
| Price T Rowe Associates Inc | 586,699 | $92.4M | 0.01% | +62,194+11.9% | Added |
| Blair William & Co | 691,163 | $108.8M | 0.38% | −63,892−8.5% | Reduced |
| Fiera Capital Corp | 739,415 | $116.4M | 0.30% | −7,301−1.0% | Reduced |
| Holocene Advisors, LP | 751,508 | $118.3M | 0.63% | +120,110+19.0% | Added |
| State Street Corp | 757,206 | $119.2M | 0.01% | −15,659−2.0% | Reduced |
| Invesco Ltd. | 805,511 | $126.8M | 0.03% | +63,816+8.6% | Added |
| Credit Suisse AG | 874,176 | $137.7M | 0.12% | −270,617−23.6% | Reduced |
| LTS One Management LP | 1,010,000 | $159.0M | 17.85% | +210,000+26.3% | Added |
| Alliancebernstein L.P. | 1,128,377 | $177.7M | 0.07% | +1,079,912+2,228.2% | Added |
| Mackenzie Financial Corp | 1,175,842 | $185.2M | 0.25% | −509,588−30.2% | Reduced |
| Capital Research Global Investors | 1,411,300 | $222.2M | 0.05% | +534,300+60.9% | Added |
| JPMorgan Chase & Co | 1,619,374 | $255.0M | 0.03% | −460,055−22.1% | Reduced |
| BlackRock Inc. | 2,093,147 | $329.6M | 0.01% | +8,440+0.4% | Added |
| Vanguard Group Inc | 2,714,221 | $427.4M | 0.01% | +33,521+1.3% | Added |
| Sands Capital Management, LLC | 3,024,758 | $476.3M | 1.10% | −17,109−0.6% | Reduced |
| Proequities, Inc. | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Hitchwood Capital Management LP | 0 | $0 | 0.00% | −180,000−100.0% | Sold out |
| Sofinnova Investments, Inc. | 0 | $0 | 0.00% | −168,882−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −128,579−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −71,055−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −41,892−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −31,733−100.0% | Sold out |
| Crestline Management, LP | 0 | $0 | 0.00% | −18,050−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −17,734−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −17,515−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −11,120−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −9,446−100.0% | Sold out |
| Gyon Technologies Capital Management, LP | 0 | $0 | 0.00% | −8,196−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −3,834−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −3,495−100.0% | Sold out |
| Blueshift Asset Management, LLC | 0 | $0 | 0.00% | −3,428−100.0% | Sold out |
| AlphaCrest Capital Management LLC | 0 | $0 | 0.00% | −2,972−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −2,326−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| Jefferies Group LLC | 0 | $0 | 0.00% | −586−100.0% | Sold out |
| First Horizon Advisors, Inc. | 0 | $0 | 0.00% | −522−100.0% | Sold out |
| Signet Financial Management, LLC | 0 | $0 | 0.00% | −169−100.0% | Sold out |
| Plante Moran Financial Advisors, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Confluence Wealth Services, Inc. | 0 | $0 | 0.00% | −79−100.0% | Sold out |
| Spire Wealth Management | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| Snowden Capital Advisors LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Carroll Financial Associates, Inc. | – | – | – | – | Not filed |
| NEXT Financial Group, Inc | – | – | – | – | Not filed |
| Bell Investment Advisors, Inc | – | – | – | – | Not filed |
| Harbour Investments, Inc. | – | – | – | – | Not filed |