Security record · archived quarter
ATRC
AtriCure, Inc. · Healthcare · Medical - Instruments & Supplies
96Tracked holders
+1Δ holders
36.16MShares held
$1.43BReported value
+2New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +1.1% ·
share flow +0.6% ·
net new positions +2.1%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| 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 | — | — |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 4.90M | +1.3% | $193.99M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 2 | The Vanguard Group ✦ (passive) | 4.90M | +1.3% | $193.99M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | The Vanguard Group ✦ (passive) | 4.90M | +1.3% | $193.99M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | The Vanguard Group ✦ (passive) | 4.90M | +1.3% | $193.99M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | The Vanguard Group ✦ (passive) | 4.90M | +1.3% | $193.99M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 4.07M | +1.7% | $160.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 21 | Wellington Management ✦ | 3.92M | -8.7% | $155.00M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 22 | Wellington Management ✦ | 3.92M | -8.7% | $155.00M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 23 | Wellington Management ✦ | 3.92M | -8.7% | $155.00M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 24 | Wellington Management ✦ | 3.92M | -8.7% | $155.00M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 25 | Wellington Management ✦ | 3.92M | -8.7% | $155.00M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 26 | Wellington Management ✦ | 3.92M | -8.7% | $155.00M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 27 | Alliancebernstein L.P. | 3.56M | — | $140.98M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | Nomura Asset Management… | 2.04M | — | $80.65M | 0.1% | n/c | 1 | SEC ↗ |
| 29 | State Street Global Advisors ✦ (passive) | 1.24M | -1.7% | $49.15M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 30 | Geode Capital Management ✦ (passive) | 1.19M | 0.0% | $47.14M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 31 | Geode Capital Management ✦ (passive) | 1.19M | 0.0% | $47.14M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 32 | Neuberger Berman Group LLC | 1.09M | — | $43.00M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Neuberger Berman Group LLC | 1.09M | — | $43.00M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | BNP Paribas Asset Management… | 959.29K | — | $37.95M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | BNP Paribas Asset Management… | 959.29K | — | $37.95M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Dimensional Fund Advisors Lp | 921.90K | — | $36.47M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Dimensional Fund Advisors Lp | 921.90K | — | $36.47M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Dimensional Fund Advisors Lp | 921.90K | — | $36.47M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Dimensional Fund Advisors Lp | 921.90K | — | $36.47M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Dimensional Fund Advisors Lp | 921.90K | — | $36.47M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Marshall Wace ✦ | 913.45K | +63.4% | $36.14M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 42 | Marshall Wace ✦ | 913.45K | +63.4% | $36.14M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 43 | Marshall Wace ✦ | 913.45K | +63.4% | $36.14M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 44 | Marshall Wace ✦ | 913.45K | +63.4% | $36.14M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 45 | Goldman Sachs Group ✦ | 885.06K | +13.9% | $35.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 46 | Goldman Sachs Group ✦ | 885.06K | +13.9% | $35.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 47 | Goldman Sachs Group ✦ | 885.06K | +13.9% | $35.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 48 | Goldman Sachs Group ✦ | 885.06K | +13.9% | $35.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 49 | Voya Investment Management Llc | 712.33K | — | $28.18M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Voya Investment Management Llc | 712.33K | — | $28.18M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Voya Investment Management Llc | 712.33K | — | $28.18M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Bank Of America Corp /De/ | 675.73K | — | $26.73M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Bank Of America Corp /De/ | 675.73K | — | $26.73M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Bank Of America Corp /De/ | 675.73K | — | $26.73M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Bank Of America Corp /De/ | 675.73K | — | $26.73M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Bank Of America Corp /De/ | 675.73K | — | $26.73M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Bank Of America Corp /De/ | 675.73K | — | $26.73M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Bank Of America Corp /De/ | 675.73K | — | $26.73M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | UBS AM, a distinct business unit of… | 569.72K | — | $22.54M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | UBS AM, a distinct business unit of… | 569.72K | — | $22.54M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | UBS AM, a distinct business unit of… | 569.72K | — | $22.54M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | UBS AM, a distinct business unit of… | 569.72K | — | $22.54M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | UBS AM, a distinct business unit of… | 569.72K | — | $22.54M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | UBS AM, a distinct business unit of… | 569.72K | — | $22.54M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | UBS AM, a distinct business unit of… | 569.72K | — | $22.54M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | UBS AM, a distinct business unit of… | 569.72K | — | $22.54M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Massachusetts Financial Services Co… | 511.21K | — | $20.22M | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Massachusetts Financial Services Co… | 511.21K | — | $20.22M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Northern Trust Corp | 438.21K | — | $17.34M | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Northern Trust Corp | 438.21K | — | $17.34M | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Northern Trust Corp | 438.21K | — | $17.34M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Northern Trust Corp | 438.21K | — | $17.34M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Northern Trust Corp | 438.21K | — | $17.34M | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Northern Trust Corp | 438.21K | — | $17.34M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Charles Schwab Investment… | 437.88K | — | $17.32M | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Two Sigma Investments ✦ | 380.50K | -16.0% | $15.05M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 77 | Wcm Investment Management, Llc | 372.68K | — | $14.97M | 0.0% | n/c | 1 | SEC ↗ |
| 78 | Connor, Clark & Lunn Investment… | 378.50K | — | $14.97M | 0.0% | n/c | 1 | SEC ↗ |
| 79 | Morgan Stanley ✦ | 346.12K | +83.3% | $13.69M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 80 | Morgan Stanley ✦ | 346.12K | +83.3% | $13.69M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 81 | Morgan Stanley ✦ | 346.12K | +83.3% | $13.69M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 82 | Morgan Stanley ✦ | 346.12K | +83.3% | $13.69M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 83 | Morgan Stanley ✦ | 346.12K | +83.3% | $13.69M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 84 | Morgan Stanley ✦ | 346.12K | +83.3% | $13.69M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 85 | Morgan Stanley ✦ | 346.12K | +83.3% | $13.69M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 86 | Nuveen, LLC | 336.26K | — | $13.30M | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Nuveen, LLC | 336.26K | — | $13.30M | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Renaissance Technologies ✦ | 321.90K | +24.4% | $12.73M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 89 | Qube Research & Technologies Ltd | 290.54K | — | $11.49M | 0.0% | n/c | 1 | SEC ↗ |
| 90 | Fidelity (FMR) ✦ | 285.76K | -27.5% | $11.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 91 | Fidelity (FMR) ✦ | 285.76K | -27.5% | $11.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 92 | Fidelity (FMR) ✦ | 285.76K | -27.5% | $11.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 93 | Point72 Asset Management ✦ | 277.92K | New | $10.99M | 0.0% | New | 1 | SEC ↗ |
| 94 | Citadel Advisors ✦ | 242.74K | +433.5% | $9.60M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 95 | Citadel Advisors ✦ | 242.74K | +433.5% | $9.60M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 96 | Amundi | 230.85K | — | $9.13M | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Amundi | 230.85K | — | $9.13M | 0.0% | n/c | 1 | SEC ↗ |
| 98 | Amundi | 230.85K | — | $9.13M | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Raymond James Financial Inc | 217.46K | — | $8.74M | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Raymond James Financial Inc | 217.46K | — | $8.74M | 0.0% | n/c | 1 | 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 | $10.99M | 0.0% |
Exited
| No tracked exits this quarter. |
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.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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