Security record
ATRC
AtriCure, Inc. · Healthcare · Medical - Instruments & Supplies
102Tracked holders
+4Δ holders
36.26MShares held
$1.02BReported value
+10New positions
−5Exits
Momentum inputs (comparable managers):
holder breadth +4.1% ·
share flow +2.7% ·
net new positions +4.9%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 102 | +4 | 36.26M | $1.02B | +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 · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 4.47M | +10.7% | $125.20M | 0.0% | ▲ Add | 5 | SEC ↗ ×15 |
| 2 | Wellington Management ✦ | 3.50M | +3.3% | $97.81M | 0.0% | ▲ Add | 9 | SEC ↗ ×6 |
| 3 | Alliancebernstein L.P. | 2.77M | -15.1% | $78.98M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | Vanguard Capital Management Llc | 2.19M | +1.6% | $61.29M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Nomura Asset Management… | 1.73M | -3.9% | $48.52M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 6 | Goldman Sachs Group ✦ | 1.60M | -4.2% | $44.71M | 0.0% | ▼ Trim | 4 | SEC ↗ ×4 |
| 7 | State Street Global Advisors ✦ (passive) | 1.39M | +6.7% | $38.94M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 8 | Marshall Wace ✦ | 1.33M | -9.1% | $37.32M | 0.0% | ▼ Trim | 9 | SEC ↗ ×4 |
| 9 | Geode Capital Management ✦ (passive) | 1.32M | +7.6% | $36.93M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 10 | Arrowstreet Capital ✦ | 1.30M | +366.8% | $36.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | Dimensional Fund Advisors Lp | 1.04M | +4.6% | $29.22M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 12 | Neuberger Berman Group LLC | 947.98K | -9.7% | $26.58M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 13 | BNP Paribas Asset Management… | 897.42K | -15.4% | $25.11M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 14 | Bank Of America Corp /De/ | 874.37K | +13.8% | $24.46M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 15 | Point72 Asset Management ✦ | 604.38K | New | $16.91M | 0.0% | New | 1 | SEC ↗ |
| 16 | Massachusetts Financial Services Co… | 580.62K | -0.8% | $16.25M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 17 | Qube Research & Technologies Ltd | 560.82K | +23.3% | $15.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | AQR Capital Management ✦ | 544.12K | +191.9% | $15.22M | 0.0% | ▲ Add | 9 | SEC ↗ ×7 |
| 19 | Two Sigma Investments ✦ | 525.79K | -30.0% | $14.71M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 20 | Fidelity (FMR) ✦ | 506.36K | +50.3% | $14.17M | 0.0% | ▲ Add | 5 | SEC ↗ ×3 |
| 21 | Northern Trust Corp | 482.04K | +7.2% | $13.49M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 22 | Morgan Stanley ✦ | 457.80K | -36.3% | $12.81M | 0.0% | ▼ Trim | 4 | SEC ↗ ×7 |
| 23 | Charles Schwab Investment… | 423.11K | -1.6% | $11.84M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 24 | Norges Bank ✦ (passive) | 374.36K | New | $10.47M | 0.0% | New | 1 | SEC ↗ |
| 25 | Nuveen, LLC | 365.82K | +8.6% | $10.24M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 26 | Wcm Investment Management, Llc | 351.08K | -2.4% | $10.08M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 27 | Connor, Clark & Lunn Investment… | 335.54K | -2.9% | $9.39M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 28 | Hrt Financial Lp | 299.74K | +346.9% | $8.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | First Eagle Investment Management… | 297.64K | +13.5% | $8.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 30 | Sei Investments Co | 281.31K | +7.9% | $7.87M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 31 | Raymond James Financial Inc | 266.06K | +22.7% | $7.44M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 32 | Amundi | 264.85K | +17.2% | $7.41M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 33 | Renaissance Technologies ✦ | 234.10K | -24.2% | $6.55M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 34 | Universal- Beteiligungs- und… | 226.34K | +5.0% | $6.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 35 | D. E. Shaw & Co. ✦ | 192.82K | +240.7% | $5.40M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 36 | Citadel Advisors ✦ | 177.34K | +103.0% | $4.96M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 37 | JPMorgan Chase ✦ | 160.39K | -6.3% | $4.67M | 0.0% | ▼ Trim | 4 | SEC ↗ ×6 |
| 38 | State Of Wisconsin Investment Board | 151.84K | -9.3% | $4.25M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 39 | Bank of New York Mellon Corp | 141.28K | +8.1% | $3.95M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 40 | UBS AM, a distinct business unit of… | 131.85K | -76.2% | $3.69M | 0.0% | ▼ Trim | 3 | SEC ↗ ×9 |
| 41 | Assenagon Asset Management S.A. | 124.67K | New | $3.49M | 0.0% | New | 1 | SEC ↗ ×2 |
| 42 | Wells Fargo & Company/Mn | 104.74K | +51.6% | $2.93M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 43 | Adage Capital Partners ✦ | 100.00K | -33.3% | $2.80M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 44 | Swiss National Bank | 96.50K | -1.5% | $2.70M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 45 | Ameriprise Financial Inc | 94.90K | +81.2% | $2.66M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 46 | LPL Financial LLC | 92.86K | +346.8% | $2.60M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 47 | Invesco Ltd. | 84.85K | +9.7% | $2.37M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 48 | Bridgewater Associates ✦ | 76.31K | +127.7% | $2.14M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 49 | T. Rowe Price ✦ | 73.08K | +21.2% | $2.04M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 50 | Principal Financial Group Inc | 69.85K | +8.6% | $1.95M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 51 | UBS Group AG | 64.19K | -2.5% | $1.80M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 52 | Rhumbline Advisers | 63.92K | -3.6% | $1.79M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 53 | Deutsche Bank Ag\ | 59.67K | +18.1% | $1.67M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 54 | Franklin Resources Inc | 58.89K | +6.1% | $1.65M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 55 | Envestnet Asset Management Inc | 55.14K | -4.7% | $1.54M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 56 | First Trust Advisors Lp | 48.41K | -74.4% | $1.35M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 57 | Legal & General Group Plc | 39.89K | -5.7% | $1.12M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 58 | Us Bancorp \De\ | 34.13K | +21.4% | $954,985 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 59 | Zurcher Kantonalbank (Zurich… | 30.43K | +35.3% | $851,571 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 60 | Citigroup Inc | 29.31K | +548.4% | $820,149 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 61 | Voya Investment Management Llc | 28.31K | -96.1% | $792,198 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 62 | Barclays Plc | 27.58K | +52.1% | $771,745 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 63 | Mariner, LLC | 26.60K | +207.7% | $744,209 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 64 | Manufacturers Life Insurance… | 24.98K | +10.9% | $699,080 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Man Group plc | 24.44K | -71.3% | $683,915 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 66 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 22.99K | +1.3% | $643,372 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Focus Partners Wealth | 22.88K | +26.2% | $640,097 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 68 | Cerity Partners LLC | 22.77K | New | $637,076 | 0.0% | New | 1 | SEC ↗ ×2 |
| 69 | Wealth Enhancement Advisory… | 18.01K | +121.8% | $617,520 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 70 | Russell Investments Group, Ltd. | 21.91K | +42.9% | $613,008 | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 71 | Truist Financial Corp | 21.55K | +1.1% | $602,829 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 72 | Bnp Paribas Financial Markets | 20.14K | -16.7% | $563,461 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 73 | Tidal Investments LLC | 19.09K | +46.2% | $534,166 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 74 | New York State Common Retirement… | 16.79K | 0.0% | $469,868 | 0.0% | Held | 3 | SEC ↗ |
| 75 | Creative Planning | 16.20K | +20.7% | $453,192 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 76 | Quantinno Capital Management LP | 15.87K | +63.1% | $443,931 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 77 | Stifel Financial Corp | 15.65K | +34.4% | $437,823 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 78 | American Century Companies Inc | 15.27K | +43.5% | $427,339 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 79 | Jones Financial Companies Lllp | 13.61K | +218.3% | $410,871 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 80 | Susquehanna International Group, Llp | 14.45K | -62.7% | $404,311 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 81 | Canada Pension Plan Investment Board | 14.10K | +43.9% | $394,518 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 82 | Mercer Global Advisors Inc /Adv | 13.56K | New | $379,437 | 0.0% | New | 1 | SEC ↗ |
| 83 | State Board Of Administration Of… | 13.30K | 0.0% | $372,106 | 0.0% | Held | 3 | SEC ↗ |
| 84 | Captrust Financial Advisors | 13.02K | +48.2% | $364,356 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 85 | Cetera Investment Advisers | 12.62K | New | $353,248 | 0.0% | New | 1 | SEC ↗ |
| 86 | Mackenzie Financial Corp | 10.53K | +25.0% | $294,517 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 87 | Royal Bank Of Canada | 10.34K | +373.6% | $290,000 | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 88 | Mitsubishi UFJ Trust & Banking Corp | 9.01K | New | $252,100 | 0.0% | New | 1 | SEC ↗ |
| 89 | HighTower Advisors, LLC | 8.49K | New | $237,550 | 0.0% | New | 1 | SEC ↗ |
| 90 | Prudential Financial Inc | 8.44K | -72.1% | $236,151 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 91 | Pictet Asset Management Holding SA | 7.86K | 0.0% | $219,895 | 0.0% | Held | 3 | SEC ↗ |
| 92 | Osaic Holdings, Inc. | 7.27K | +38.0% | $203,468 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 93 | Pnc Financial Services Group, Inc. | 5.89K | +24.1% | $164,830 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 94 | Ensign Peak Advisors, Inc | 4.12K | 0.0% | $115,138 | 0.0% | Held | 3 | SEC ↗ |
| 95 | Rockefeller Capital Management L.P. | 3.51K | -28.6% | $98,098 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 96 | Simplex Trading, Llc | 3.03K | +20.8% | $84,891 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 97 | DZ BANK AG Deutsche Zentral… | 2.02K | New | $56,463 | 0.0% | New | 1 | SEC ↗ |
| 98 | Fifth Third Bancorp | 1.96K | +10.1% | $54,884 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 99 | Assetmark, Inc | 1.50K | 0.0% | $41,830 | 0.0% | Held | 3 | SEC ↗ |
| 100 | Mitsubishi UFJ Asset Management… | 192 | 0.0% | $5,372 | 0.0% | Held | 3 | 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 | $16.91M | 0.0% |
| Norges Bank | $10.47M | 0.0% |
| Assenagon Asset Management… | $3.49M | 0.0% |
| Cerity Partners LLC | $637,076 | 0.0% |
| Mercer Global Advisors Inc… | $379,437 | 0.0% |
| Cetera Investment Advisers | $353,248 | 0.0% |
| Mitsubishi UFJ Trust &… | $252,100 | 0.0% |
| HighTower Advisors, LLC | $237,550 | 0.0% |
| DZ BANK AG Deutsche Zentral… | $56,463 | 0.0% |
Exited
| Millennium Management | $5.13M | was 0.0% |
| Allianz Asset Management GmbH | $3.49M | was 0.0% |
| Lazard Asset Management Llc | $1.54M | was 0.0% |
| Balyasny Asset Management L.P. | $493,540 | was 0.0% |
| ProShare Advisors LLC | $200,081 | 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.
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: Q2 2026 ·
Methodology ·
Get this via the API