AtricureATRC
13F holders, Q1 2026 (March 31)224holders −10
27new positions
38sold out
6famous investors
$29.24avg. 13F price*
At the end of Q1 2026, 224 institutions reported holding Atricure Inc. (ATRC) in their 13F filings, down 10 from Q4 2025. 27 opened new positions and 38 sold out. The largest holders were Alliancebernstein L.P. ($128.9M), BlackRock, Inc. ($115.3M) and Wellington Management Group LLP ($96.5M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ray Dalio (0.0% of Bridgewater Associates's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Atricure Inc.
- CUSIP
- 04963C209
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 27 | $54.2M |
| Exits | 38 | $60.5M |
All 13F filers, Q4 2025 → Q1 2026: 5,719,357 shares bought and 4,377,018 shares sold, net +1,342,339 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 224 holders
| Alliancebernstein L.P. | 0.04% | Reduce -8.6% | 3,258,872 | $128.9M |
| BlackRock, Inc. | 0.00% | Reduce -0.6% | 4,042,681 | $115.3M |
| Wellington Management Group LLP | 0.02% | Reduce -13.7% | 3,382,555 | $96.5M |
| Hood River Capital Management LLC | 0.89% | Add +0.7% | 3,117,545 | $88.9M |
| Vanguard Portfolio Management LLC | 0.00% | — | 2,702,632 | $77.1M |
| Vanguard Capital Management LLC | 0.00% | — | 2,155,764 | $61.5M |
| Nomura Asset Management International Inc. | 0.09% | Reduce -11.5% | 1,804,927 | $51.5M |
| Goldman Sachs Group Inc. | 0.01% | Add +88.4% | 1,667,166 | $47.6M |
| Marshall Wace, LLP | 0.05% | Add +60.7% | 1,467,524 | $41.9M |
| State Street Corp. | 0.00% | Add +4.8% | 1,302,162 | $37.2M |
| Geode Capital Management, LLC | 0.00% | Add +2.9% | 1,226,116 | $35.0M |
| Divisadero Street Capital Management, LP | 1.55% | New | 1,159,955 | $33.1M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.04% | Add +10.6% | 1,060,806 | $30.3M |
| Neuberger Berman Group LLC | 0.02% | Reduce -3.3% | 1,050,282 | $30.0M |
| Dimensional Fund Advisors LP | 0.01% | Add +8.2% | 997,759 | $28.5M |
| Champlain Investment Partners, LLC | 0.35% | Reduce -17.3% | 971,111 | $27.7M |
| GW&K Investment Management, LLC | 0.24% | Add +1.2% | 963,415 | $27.5M |
| Kennedy Capital Management LLC | 0.50% | Reduce -0.4% | 834,155 | $23.8M |
| Bank of America Corp. | 0.00% | Add +13.7% | 768,561 | $21.9M |
| Two Sigma Investments, LP | 0.02% | Add +97.4% | 751,003 | $21.4M |
| First Light Asset Management, LLC | 1.87% | Reduce -37.9% | 729,521 | $20.8M |
| Voya Investment Management LLC | 0.02% | Add +1.0% | 719,649 | $20.5M |
| Morgan Stanley | 0.00% | Add +107.8% | 719,162 | $20.5M |
| DAFNA Capital Management LLC | 3.93% | No change | 597,431 | $17.0M |
| Massachusetts Financial Services Co. | 0.01% | Add +14.5% | 585,353 | $16.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -2.6% | 555,114 | $15.8M |
| Qube Research & Technologies Ltd | 0.02% | Add +56.5% | 454,791 | $13.0M |
| Northern Trust Corp. | 0.00% | Add +2.6% | 449,599 | $12.8M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -1.8% | 429,833 | $12.3M |
| Grandeur Peak Global Advisors, LLC | 2.55% | Add +16.3% | 381,902 | $10.9M |
| WCM Investment Management, LLC | 0.02% | Reduce -3.5% | 359,761 | $10.2M |
| Osterweis Capital Management Inc. | 0.62% | Add +71.8% | 349,645 | $10.0M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.02% | Reduce -8.8% | 345,388 | $9.9M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 342,854 | $9.8M |
| FMR LLC | 0.00% | Add +17.9% | 336,814 | $9.6M |
| Nuveen, LLC | 0.00% | Add +0.1% | 336,727 | $9.6M |
| Renaissance Technologies | 0.01% | Reduce -4.1% | 308,700 | $8.8M |
| Arrowstreet Capital, Limited Partnership | 0.00% | New | 277,682 | $7.9M |
| First Eagle Investment Management, LLC | 0.01% | Add +124.8% | 262,143 | $7.5M |
| Sei Investments Co. | 0.01% | Add +64.7% | 260,788 | $7.4M |
| Wasatch Advisors LP | 0.05% | Reduce -28.2% | 253,931 | $7.2M |
| Panagora Asset Management Inc. | 0.02% | Add +0.3% | 227,377 | $6.5M |
| Amundi | 0.00% | Reduce -2.1% | 225,932 | $6.4M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | Add +11.5% | 215,545 | $6.1M |
| Raymond James Financial Inc. | 0.00% | Reduce -0.3% | 216,907 | $6.1M |
| Nicholas Company, Inc. | 0.11% | Reduce -0.4% | 204,595 | $5.8M |
| First Trust Advisors LP | 0.00% | Add +60.7% | 189,285 | $5.4M |
| AQR Capital Management | 0.00% | Add +86.5% | 186,382 | $5.3M |
| Advisors Capital Management, LLC | 0.06% | Reduce -0.3% | 182,314 | $5.2M |
| Millennium Management | 0.00% | Add +9.8% | 179,886 | $5.1M |
| JPMorgan Chase & Co. | 0.00% | Reduce -4.6% | 171,263 | $4.8M |
| State of Wisconsin Investment Board | 0.01% | Add +1.9% | 167,354 | $4.8M |
| Adage Capital Partners Gp, L.L.C. | 0.01% | Add +36.1% | 150,000 | $4.3M |
| Trexquant Investment LP | 0.03% | Add +84.2% | 143,094 | $4.1M |
| Bank of New York Mellon Corp | 0.00% | Reduce -3.6% | 130,650 | $3.7M |
| Paradigm Capital Management Inc. | 0.13% | No change | 123,100 | $3.5M |
| Allianz Asset Management GmbH | 0.00% | Add +3.7% | 122,158 | $3.5M |
| Sit Investment Associates Inc. | 0.07% | Add +5.0% | 113,330 | $3.2M |
| Schonfeld Strategic Advisors LLC | 0.02% | New | 101,682 | $2.9M |
| Swiss National Bank | 0.00% | No change | 98,000 | $2.8M |
| Voloridge Investment Management, LLC | 0.01% | Reduce -55.9% | 97,182 | $2.8M |
| Acadian Asset Management LLC | 0.00% | Add +7.2% | 88,852 | $2.5M |
| Citadel Advisors | 0.00% | Reduce -64.0% | 87,347 | $2.5M |
| Man Group plc | 0.01% | Add +389.1% | 85,116 | $2.4M |
| HighMark Wealth Management LLC | 0.97% | No change | 83,720 | $2.4M |
| Invesco Ltd. | 0.00% | Add +3.9% | 77,316 | $2.2M |
| Emerald Investment Advisers, LLC | 0.18% | — | 71,492 | $2.0M |
| Riverwater Partners LLC | 0.67% | Add +16.9% | 70,506 | $2.0M |
| Wells Fargo & Company | 0.00% | Reduce -31.9% | 69,084 | $2.0M |
| HRT Financial LP | 0.00% | New | 67,071 | $1.9M |
| Rhumbline Advisers | 0.00% | Reduce -1.6% | 66,281 | $1.9M |
| UBS Group AG | 0.00% | Reduce -36.7% | 65,865 | $1.9M |
| Principal Financial Group Inc. | 0.00% | Add +45.7% | 64,296 | $1.8M |
| T. Rowe Price Associates Inc. | 0.00% | Add +19.2% | 60,285 | $1.7M |
| California State Teachers Retirement System | 0.00% | Add +33.3% | 59,947 | $1.7M |
| Orion Porfolio Solutions, LLC | 0.01% | Reduce -3.1% | 58,297 | $1.7M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -0.7% | 57,877 | $1.7M |
| D. E. Shaw & Co. | 0.00% | New | 56,589 | $1.6M |
| Franklin Resources Inc. | 0.00% | Add +6.2% | 55,516 | $1.6M |
| Lazard Asset Management LLC | 0.00% | Add +8.6% | 54,015 | $1.5M |
| Ameriprise Financial Inc. | 0.00% | Add +95.2% | 52,383 | $1.5M |
| Knott David M Jr | 0.87% | No change | 51,400 | $1.5M |
| Deutsche Bank AG | 0.00% | Add +10.0% | 50,510 | $1.4M |
| B. Metzler seel. Sohn & Co. AG | 0.01% | No change | 49,876 | $1.4M |
| Oak Harvest Investment Services | 0.13% | Add +20.0% | 45,000 | $1.3M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 44,784 | $1.3M |
| Engineers Gate Manager LP | 0.02% | Reduce -26.7% | 42,877 | $1.2M |
| Legal & General Group Plc | 0.00% | Reduce -18.7% | 42,302 | $1.2M |
| Harbor Capital Advisors, Inc. | 0.10% | Add +23.8% | 41,547 | $1.2M |
| Algert Global LLC | 0.02% | Reduce -84.4% | 40,799 | $1.2M |
| Scotia Capital Inc. | 0.00% | Add +3.7% | 40,379 | $1.2M |
| Diversified Trust Co. | 0.02% | Add +7.1% | 40,090 | $1.1M |
| Susquehanna International Group, LLP | 0.00% | New | 38,777 | $1.1M |
| Gsa Capital Partners LLP | 0.06% | Add +4.1% | 36,242 | $1.0M |
| Teachers Retirement System of the State of Kentucky | 0.01% | No change | 36,102 | $1.0M |
| Bridgewater Associates | 0.00% | New | 33,517 | $956K |
| Prudential Financial Inc. | 0.00% | Reduce -50.1% | 30,270 | $864K |
| Marks Group Wealth Management, Inc | 0.08% | No change | 28,973 | $827K |
| US Bancorp \de | 0.00% | Add +51.2% | 28,105 | $802K |
| MetLife Investment Management, LLC | 0.00% | Reduce -0.9% | 26,717 | $762K |
"% of holder's portfolio" is ATRC's weight in each manager's 13F, not the share of Atricure Inc. the manager owns.