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

0100200300 Q1 2024: 224Q1 2024Q2 2024: 198Q2 2024Q3 2024: 202Q3 2024Q4 2024: 213Q4 2024Q1 2025: 221Q1 2025Q2 2025: 201Q2 2025Q3 2025: 223Q3 2025Q4 2025: 234Q4 2025Q1 2026: 224Q1 2026Q2 2026: 251Q2 2026

Total Exit/New Position Q4 2025 → Q1 2026

InstitutionsTotal Value
New Positions27$54.2M
Exits38$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
Perkins Capital Management Inc. 0.70% Reduce -4.9% 26,100 $745K
Rice Hall James & Associates, LLC 0.04% New 25,210 $719K
BNP Paribas Financial Markets 0.00% Add +68.4% 24,164 $689K
Janus Henderson Group PLC 0.00% No change 22,883 $653K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Add +0.9% 22,695 $647K
Manufacturers Life Insurance Company, The 0.00% Reduce -0.7% 22,524 $643K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +19.1% 22,493 $642K
Teacher Retirement System of Texas 0.00% New 21,949 $626K
Truist Financial Corp. 0.00% Add +0.5% 21,305 $608K
LPL Financial LLC 0.00% Reduce -0.6% 20,785 $593K
Handelsbanken Fonder AB 0.00% No change 20,300 $579K
EntryPoint Capital, LLC 0.17% Add +180.0% 19,881 $567K
Vanguard Global Advisers, LLC 0.00% — 19,435 $554K
Vident Advisory, LLC 0.00% New 18,140 $518K
Barclays PLC 0.00% Reduce -80.4% 18,135 $517K
Focus Partners Wealth 0.00% Reduce -0.2% 18,134 $517K
Balyasny Asset Management L.P. 0.00% New 17,299 $494K
Dynamic Technology Lab Private Ltd 0.08% Add +31.2% 17,076 $487K
New York State Common Retirement Fund 0.00% No change 16,793 $479K
Cresset Asset Management, LLC 0.00% Add +43.5% 15,904 $454K
Mirabella Financial Services LLP 0.05% New 15,731 $449K
Russell Investments Group, Ltd. 0.00% Add +3.2% 15,334 $437K
Arizona State Retirement System 0.00% Reduce -0.6% 13,656 $390K
Fiduciary Trust Co 0.00% Add +15.4% 13,630 $389K
Creative Planning 0.00% Add +7.0% 13,419 $383K
Police & Firemen's Retirement System of New Jersey 0.00% No change 13,392 $382K
State Board of Administration of Florida Retirement System 0.00% No change 13,299 $379K
Valmark Advisers, Inc. 0.00% New 13,080 $373K
Tidal Investments LLC 0.00% Add +0.9% 13,057 $373K
Vanguard Investments Australia, Ltd. 0.00% — 12,181 $348K
Aquatic Capital Management LLC 0.01% New 11,774 $336K
Stifel Financial Corp. 0.00% Reduce -0.9% 11,639 $332K
Entropy Technologies, LP 0.02% Add +26.5% 11,493 $328K
Blue Trust, Inc. 0.00% No change 11,475 $327K
Commerce Bank 0.00% Reduce -4.6% 11,445 $327K
Diversify Wealth Management, LLC 0.01% Add +27.1% 11,631 $318K
Intech Investment Management LLC 0.00% Reduce -37.8% 11,026 $315K
KLP Kapitalforvaltning As 0.00% No change 11,000 $314K
American Century Companies Inc. 0.00% Reduce -87.0% 10,640 $304K
Caxton Associates LLP 0.01% Add +52.1% 10,472 $299K
MAI Capital Management 0.00% Reduce -1.1% 9,949 $284K
Canada Pension Plan Investment Board 0.00% Reduce -19.7% 9,800 $280K
Quantinno Capital Management LP 0.00% New 9,726 $277K
SG Americas Securities, LLC 0.00% Reduce -74.0% 9,627 $275K
Bessemer Group Inc. 0.00% Reduce -71.1% 9,570 $273K
Graham Capital Management, L.P. 0.01% Add +34.9% 9,563 $273K
Brevan Howard Capital Management LP 0.00% Reduce -52.5% 9,500 $271K
First Bank & Trust 0.04% Add +5.4% 9,282 $265K
Cornerstone Investment Partners, LLC 0.01% New 9,178 $262K
Captrust Financial Advisors 0.00% Add +10.6% 8,787 $251K
Cwm, LLC 0.00% Add +254.8% 8,767 $250K
Mariner, LLC 0.00% New 8,645 $247K
Vanguard Personalized Indexing Management, LLC 0.00% Add +61.2% 8,635 $246K
Mackenzie Financial Corp. 0.00% Reduce -38.1% 8,420 $240K
Wealth Enhancement Advisory Services, LLC 0.00% Add +27.8% 8,121 $236K
Astra Wealth Partners LLC 0.14% No change 8,048 $230K
Ieq Capital, LLC 0.00% New 7,952 $227K
VIRGINIA RETIREMENT SYSTEMS ET Al 0.00% No change 7,900 $225K
Pictet Asset Management Holding SA 0.00% No change 7,859 $224K
AlTi Global, Inc. 0.00% Reduce -0.1% 7,274 $208K
ProShare Advisors LLC 0.00% Reduce -20.5% 7,013 $200K
Public Employees Retirement Association of Colorado 0.00% No change 6,170 $176K
Quadrant Capital Group LLC 0.00% Reduce -0.1% 5,616 $160K
Osaic Holdings, Inc. 0.00% Reduce -26.6% 5,270 $150K
Rockefeller Capital Management L.P. 0.00% Add +23.3% 4,911 $140K
PNC Financial Services Group, Inc. 0.00% Reduce -6.8% 4,748 $135K
Citigroup Inc. 0.00% Add +225.7% 4,521 $129K
Globeflex Capital L P 0.02% No change 4,496 $128K
Jones Financial Companies LLLP 0.00% Add +730.5% 4,277 $124K
Ensign Peak Advisors, Inc 0.00% No change 4,115 $117K
CANADA LIFE ASSURANCE Co 0.00% No change 4,041 $116K
Ameritas Investment Partners, Inc. 0.00% No change 4,043 $115K
Parallel Advisors, LLC 0.00% Reduce -10.3% 3,643 $104K
Tower Research Capital LLC (TRC) 0.00% Reduce -23.1% 3,595 $103K
State of Wyoming 0.01% Add +87.7% 3,537 $101K
State of Alaska, Department of Revenue 0.00% No change 2,871 $81K
Simplex Trading, LLC 0.00% New 2,512 $72K
Royal Bank of Canada 0.00% Reduce -30.5% 2,184 $61K
Farther Finance Advisors, LLC 0.00% Reduce -27.0% 2,005 $57K
STRS Ohio 0.00% No change 1,800 $51K
Fifth Third Bancorp 0.00% New 1,781 $51K
Assetmark, Inc. 0.00% Reduce -4.8% 1,495 $43K
KBC Group NV 0.00% No change 1,484 $42K
Pinnacle Wealth Planning Services, Inc. 0.00% No change 1,362 $39K
Smartleaf Asset Management LLC 0.00% Add +5.4% 1,208 $34K
Geneos Wealth Management Inc. 0.00% No change 1,135 $32K
Huntington National Bank 0.00% Reduce -4.4% 847 $24K
Larson Financial Group LLC 0.00% Add +26.1% 661 $19K
First Horizon Corp. 0.00% Reduce -75.9% 545 $16K
Nisa Investment Advisors, LLC 0.00% No change 387 $11K
Essential Partners LLC 0.00% Add +868.4% 368 $10K
Allworth Financial LP 0.00% Add +1053.6% 323 $9K
Sterling Capital Management LLC 0.00% Reduce -0.6% 314 $9K
Signaturefd, LLC 0.00% Reduce -14.8% 294 $8K
Rossby Financial, LCC 0.00% No change 239 $7K
Los Angeles Capital Management LLC 0.00% No change 208 $6K
Parkside Financial Bank & Trust 0.00% No change 194 $6K
Mitsubishi UFJ Asset Management Co., Ltd. 0.00% No change 192 $5K
EverSource Wealth Advisors, LLC 0.00% Add +481.3% 186 $5K
Versant Capital Management, Inc 0.00% Add +302.2% 185 $5K
Rothschild Investment LLC 0.00% Add +30.2% 168 $5K
Brown Brothers Harriman & Co. 0.00% Reduce -13.9% 143 $4K
C M Bidwell & Associates Ltd. 0.00% No change 117 $3K
Private Wealth Management Group, LLC 0.00% No change 116 $3K
Salem Investment Counselors Inc. 0.00% New 111 $3K
Owl Creek Wealth Partners LLC 0.00% — 110 $3K
LRI Investments, LLC 0.00% Reduce -1.3% 78 $2K
GAMMA Investing LLC 0.00% Reduce -61.6% 58 $2K
Mather Group, Llc. 0.00% New 55 $2K
IFP Advisors, Inc 0.00% Add +511.1% 55 $2K
Truvestments Capital LLC 0.00% No change 54 $2K
Arax Advisory Partners 0.00% Add +172.2% 49 $1K
Wealth Preservation Advisors, LLC 0.00% New 48 $1K
Keating Financial Advisory Services, Inc. 0.00% New 48 $1K
Investors Portfolio Services LLC 0.00% New 41 $1K
True Wealth Design, LLC 0.00% No change 32 $913
Cornerstone Planning Group LLC 0.00% No change 31 $912
Basecamp Wealth Advisors LLC 0.00% New 23 $656
Optiver Holding B.V. 0.00% Reduce -50.0% 18 $514
SJS Investment Consulting Inc. 0.00% New 11 $314
Caitong International Asset Management Co., Ltd 0.00% Add +600.0% 7 $200
Hughes Financial Services, LLC 0.00% Add +300.0% 4 $114
Avion Wealth 0.00% No change 19 $0
Covestor Ltd 0.00% No change 3 $0

"% of holder's portfolio" is ATRC's weight in each manager's 13F, not the share of Atricure Inc. the manager owns.