ATRC
AtriCure, Inc. · Healthcare · Medical - Instruments & Supplies
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +21.9% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 102 | +5 | 36.09M | $1.01B | +10 | −5 |
| Q1 2026 | 100 | +5 | 35.01M | $1.03B | +10 | −6 |
| Q4 2025 | 96 | +1 | 36.16M | $1.43B | +2 | — |
| Q3 2025 | 17 | -1 | 19.38M | $683.04M | — | −2 |
| Q2 2025 | 16 | -1 | 18.32M | $600.37M | — | −1 |
| Q1 2025 | 14 | 0 | 6.98M | $225.02M | +1 | −1 |
| Q4 2024 | 14 | +1 | 5.72M | $174.87M | +2 | −1 |
| Q3 2024 | 12 | -1 | 4.89M | $137.07M | — | −1 |
| Q2 2024 | 13 | — | 5.61M | $127.65M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 1.28M | -5.1% | $41.24M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 1.17M | +1.4% | $37.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 1.17M | +1.4% | $37.66M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Marshall Wace ✦ | 994.09K | +60.5% | $32.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | Marshall Wace ✦ | 994.09K | +60.5% | $32.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | Marshall Wace ✦ | 994.09K | +60.5% | $32.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | Wellington Management ✦ | 702.05K | +7.3% | $22.65M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | Wellington Management ✦ | 702.05K | +7.3% | $22.65M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | Wellington Management ✦ | 702.05K | +7.3% | $22.65M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | Two Sigma Investments ✦ | 667.92K | +9.3% | $21.55M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | Millennium Management ✦ | 623.32K | +79.2% | $20.11M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 12 | Point72 Asset Management ✦ | 558.35K | New | $18.01M | 0.1% | New | 1 | SEC ↗ |
| 13 | Renaissance Technologies ✦ | 307.90K | +87.9% | $9.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 14 | Adage Capital Partners ✦ | 275.00K | -8.3% | $8.87M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | Citadel Advisors ✦ | 189.48K | -2.8% | $6.11M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 16 | Citadel Advisors ✦ | 189.48K | -2.8% | $6.11M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 17 | AQR Capital Management ✦ | 83.69K | +1.0% | $2.70M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 18 | AQR Capital Management ✦ | 83.69K | +1.0% | $2.70M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 19 | AQR Capital Management ✦ | 83.69K | +1.0% | $2.70M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 20 | AQR Capital Management ✦ | 83.69K | +1.0% | $2.70M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 83.69K | +1.0% | $2.70M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 22 | Norges Bank ✦ (passive) | 58.95K | -47.3% | $1.90M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 23 | T. Rowe Price ✦ | 43.48K | -0.3% | $1.40M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 24 | D. E. Shaw & Co. ✦ | 25.36K | -62.4% | $817,952 | 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 | $18.01M | 0.1% |
Exited
| Arrowstreet Capital | $815,738 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 221 holders, 49.84M shares, $1.41B 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.