IRTC
iRhythm Technologies, Inc. · Healthcare · Medical - Devices
Momentum inputs (comparable managers):
holder breadth +11.1% ·
share flow +16.6% ·
net new positions +10.0%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 105 | -5 | 23.67M | $2.82B | +4 | −8 |
| Q1 2026 | 112 | +1 | 25.32M | $2.99B | +11 | −11 |
| Q4 2025 | 110 | -1 | 25.32M | $4.49B | +2 | −2 |
| Q3 2025 | 21 | +1 | 12.24M | $2.10B | +1 | — |
| Q2 2025 | 17 | +4 | 9.71M | $1.50B | +4 | — |
| Q1 2025 | 10 | +1 | 2.81M | $294.19M | +2 | −1 |
| Q4 2024 | 9 | -1 | 2.41M | $217.31M | +2 | −3 |
| Q3 2024 | 9 | +1 | 1.67M | $124.10M | +2 | −1 |
| Q2 2024 | 8 | — | 2.43M | $261.78M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 917.69K | -3.3% | $96.06M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 750.37K | +2.6% | $78.57M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 750.37K | +2.6% | $78.57M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Point72 Asset Management ✦ | 420.30K | New | $44.00M | 0.1% | New | 1 | SEC ↗ |
| 5 | Millennium Management ✦ | 399.75K | +563.8% | $41.85M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | Wellington Management ✦ | 165.64K | -29.2% | $17.34M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 7 | Adage Capital Partners ✦ | 100.00K | 0.0% | $10.47M | 0.0% | Held | 2 | SEC ↗ |
| 8 | T. Rowe Price ✦ | 22.91K | +9.9% | $2.40M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | Renaissance Technologies ✦ | 22.10K | New | $2.31M | 0.0% | New | 1 | SEC ↗ |
| 10 | AQR Capital Management ✦ | 8.30K | +0.3% | $869,158 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 8.30K | +0.3% | $869,158 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 8.30K | +0.3% | $869,158 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 13 | AQR Capital Management ✦ | 8.30K | +0.3% | $869,158 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | AQR Capital Management ✦ | 8.30K | +0.3% | $869,158 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | Citadel Advisors ✦ | 3.10K | -99.0% | $324,717 | 0.0% | ▼ Trim | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $44.00M | 0.1% |
| Renaissance Technologies | $2.31M | 0.0% |
Exited
| Bridgewater Associates | $303,332 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 300 holders, 34.72M shares, $4.07B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer, Director · 26.86K sh · $3.35M
Officer · 7.09K sh · $884,156
Officer · 7.09K sh · $884,170
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology