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 | 99 | +3 | 35.69M | $1.00B | +9 | −7 |
| Q1 2026 | 100 | +5 | 35.01M | $1.03B | +10 | −6 |
| Q4 2025 | 96 | +1 | 36.16M | $1.43B | +2 | n/a |
| Q3 2025 | 17 | -1 | 19.38M | $683.04M | n/a | −2 |
| Q2 2025 | 16 | -1 | 18.32M | $600.37M | n/a | −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 | n/a | −1 |
| Q2 2024 | 13 | n/a | 5.61M | $127.65M | n/a | n/a |
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 ↗ ×5 |
| 2 | Wellington Management ✦ | 3.92M | -8.7% | $155.00M | 0.0% | ▼ Trim | 7 | SEC ↗ ×6 |
| 3 | Alliancebernstein L.P. | 3.56M | n/a | $140.98M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Nomura Asset Management… | 2.04M | n/a | $80.65M | 0.1% | n/c | 1 | SEC ↗ |
| 5 | State Street Global Advisors ✦ (passive) | 1.24M | -1.7% | $49.15M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 6 | Geode Capital Management ✦ (passive) | 1.19M | 0.0% | $47.14M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 7 | Dimensional Fund Advisors Lp | 921.90K | n/a | $36.47M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 8 | Marshall Wace ✦ | 913.45K | +63.4% | $36.14M | 0.0% | ▲ Add | 7 | SEC ↗ ×4 |
| 9 | Goldman Sachs Group ✦ | 885.06K | +13.9% | $35.01M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 10 | Voya Investment Management Llc | 712.33K | n/a | $28.18M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 11 | Bank Of America Corp /De/ | 675.73K | n/a | $26.73M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 12 | UBS AM, a distinct business unit of… | 569.72K | n/a | $22.54M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 13 | Massachusetts Financial Services Co… | 511.21K | n/a | $20.22M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 14 | Northern Trust Corp | 438.21K | n/a | $17.34M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 15 | Charles Schwab Investment… | 437.88K | n/a | $17.32M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | Two Sigma Investments ✦ | 380.50K | -16.0% | $15.05M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 17 | Wcm Investment Management, Llc | 372.68K | n/a | $14.97M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | Morgan Stanley ✦ | 346.12K | +83.3% | $13.69M | 0.0% | ▲ Add | 2 | SEC ↗ ×7 |
| 19 | Renaissance Technologies ✦ | 321.90K | +24.4% | $12.73M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 20 | Fidelity (FMR) ✦ | 285.76K | -27.5% | $11.30M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 21 | Amundi | 230.85K | n/a | $9.13M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 22 | Raymond James Financial Inc | 217.46K | n/a | $8.74M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 23 | Norges Bank ✦ (passive) | 214.02K | New | $8.47M | 0.0% | New | 1 | SEC ↗ |
| 24 | JPMorgan Chase ✦ | 179.60K | -60.4% | $7.10M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 25 | State Of Wisconsin Investment Board | 164.20K | n/a | $6.50M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Millennium Management ✦ | 163.79K | -53.6% | $6.48M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 27 | Sei Investments Co | 158.30K | n/a | $6.26M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 28 | First Trust Advisors Lp | 117.76K | n/a | $4.66M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | First Eagle Investment Management… | 116.61K | n/a | $4.61M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | Adage Capital Partners ✦ | 110.21K | -37.0% | $4.36M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 31 | Wells Fargo & Company/Mn | 101.49K | n/a | $4.01M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 32 | AQR Capital Management ✦ | 99.96K | +18.8% | $3.95M | 0.0% | ▲ Add | 7 | SEC ↗ ×5 |
| 33 | Barclays Plc | 92.61K | n/a | $3.66M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 34 | American Century Companies Inc | 81.61K | n/a | $3.23M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Invesco Ltd. | 74.44K | n/a | $2.94M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 36 | Rhumbline Advisers | 67.34K | n/a | $2.66M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Prudential Financial Inc | 60.61K | n/a | $2.40M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 38 | Franklin Resources Inc | 52.28K | n/a | $2.07M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 39 | Legal & General Group Plc | 52.04K | n/a | $2.06M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 40 | T. Rowe Price ✦ | 50.58K | +4.4% | $2.00M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 41 | Lazard Asset Management Llc | 49.72K | n/a | $1.97M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Deutsche Bank Ag\ | 45.93K | n/a | $1.82M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 43 | California State Teachers… | 44.96K | n/a | $1.78M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Principal Financial Group Inc | 44.14K | n/a | $1.75M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 45 | Hsbc Holdings Plc | 34.45K | n/a | $1.37M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 46 | Ameriprise Financial Inc | 26.84K | n/a | $1.06M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 47 | Victory Capital Management Inc | 24.84K | n/a | $982,789 | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Janus Henderson Group Plc | 22.88K | n/a | $904,908 | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Manufacturers Life Insurance… | 22.67K | n/a | $896,904 | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Truist Financial Corp | 21.19K | n/a | $838,434 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 51 | Zurcher Kantonalbank (Zurich… | 18.89K | n/a | $747,288 | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Us Bancorp \De\ | 18.58K | n/a | $735,183 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 53 | New York State Common Retirement… | 16.79K | n/a | $664,331 | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Bnp Paribas Financial Markets | 14.35K | n/a | $567,805 | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Mackenzie Financial Corp | 13.60K | n/a | $545,253 | 0.0% | n/c | 1 | SEC ↗ |
| 56 | State Board Of Administration Of… | 13.30K | n/a | $526,108 | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Canada Pension Plan Investment Board | 12.20K | n/a | $482,632 | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Stifel Financial Corp | 11.75K | n/a | $464,834 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 59 | ProShare Advisors LLC | 8.82K | n/a | $348,879 | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Pnc Financial Services Group, Inc. | 5.09K | n/a | $201,558 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 61 | Royal Bank Of Canada | 3.14K | n/a | $124,000 | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 62 | Assetmark, Inc | 1.57K | n/a | $62,149 | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Citigroup Inc | 1.39K | n/a | $54,909 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 64 | Jones Financial Companies Lllp | 515 | n/a | $20,373 | 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
| Norges Bank | $8.47M | 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.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Sep 23
Privitera Salvatore
Officer · 4.52K sh · $271,140
Sep 11
GROVES REGINA E
Director · 5.31K sh · $288,071
Sep 08
Privitera Salvatore
Officer · 3.66K sh · $201,135
Sep 02
Privitera Salvatore
Officer · 7.76K sh · $407,558
Aug 24
Dahlquist Karl S.
Officer · 9.37K sh · $458,099
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Oct 05
SC 13G/A: BlackRock, Inc.
Aug 14
SC 13G/A: ALLIANCEBERNSTEIN L.P.
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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