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, Q4 2021
Institutional positions in iRhythm Holdings, Inc. as of Dec 31, 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
- 213
- +28 vs. Q3 2021
- Shares held
- 29.1M
- +1.07M (+3.8%) vs. Q3 2021
- Total value
- $3.43B
- +$1.79B (+108.7%) vs. Q3 2021
- New holders
- 54
- 60 more added
- Sold out
- 26
- 70 more reduced
1 institution that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding iRhythm Holdings, Inc.; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Holocene Advisors, LP | 631,398 | $74.3M | 0.39% | +255,924+68.2% | Added |
| Invesco Ltd. | 741,695 | $87.3M | 0.02% | +309,520+71.6% | Added |
| Fiera Capital Corp | 746,716 | $87.9M | 0.21% | +144,674+24.0% | Added |
| Blair William & Co | 755,055 | $88.9M | 0.28% | +64,831+9.4% | Added |
| State Street Corp | 772,865 | $91.0M | 0.00% | −104,199−11.9% | Reduced |
| LTS One Management LP | 800,000 | $94.2M | 8.32% | +800,000 | New |
| Capital Research Global Investors | 877,000 | $103.2M | 0.02% | +777,000+777.0% | Added |
| Credit Suisse AG | 1,144,793 | $134.7M | 0.11% | −22,536−1.9% | Reduced |
| Mackenzie Financial Corp | 1,685,430 | $198.4M | 0.27% | −216,621−11.4% | Reduced |
| JPMorgan Chase & Co | 2,079,429 | $244.7M | 0.03% | +287,654+16.1% | Added |
| BlackRock Inc. | 2,084,707 | $245.3M | 0.01% | +23,695+1.1% | Added |
| Vanguard Group Inc | 2,680,700 | $315.5M | 0.01% | +16,683+0.6% | Added |
| Sands Capital Management, LLC | 3,041,867 | $358.0M | 0.66% | −251,557−7.6% | Reduced |
| Camber Capital Management LP | 0 | $0 | 0.00% | −475,000−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −350,521−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −242,100−100.0% | Sold out |
| Pura Vida Investments, LLC | 0 | $0 | 0.00% | −130,000−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −66,505−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −66,415−100.0% | Sold out |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −60,271−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −57,155−100.0% | Sold out |
| Prosight Management, LP | 0 | $0 | 0.00% | −37,396−100.0% | Sold out |
| Duality Advisers, LP | 0 | $0 | 0.00% | −36,386−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −30,203−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −15,323−100.0% | Sold out |
| Lombard Odier Asset Management (USA) Corp | 0 | $0 | 0.00% | −14,000−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −9,740−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −8,135−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −6,835−100.0% | Sold out |
| Quantamental Technologies LLC | 0 | $0 | 0.00% | −6,674−100.0% | Sold out |
| SG3 Management, LLC | 0 | $0 | 0.00% | −2,500−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −703−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −676−100.0% | Sold out |
| Creative Financial Designs Inc | 0 | $0 | 0.00% | −110−100.0% | Sold out |
| Barclays PLC | 0 | $0 | 0.00% | −70−100.0% | Sold out |
| Brewin Dolphin Ltd | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| HM Payson & Co | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| Parallax Volatility Advisers, L.P. | 0 | $0 | 0.00% | −22−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Berman Capital Advisors, LLC | – | – | – | – | Not filed |