AtriCure (ATRC) Institutional Ownership $33.26 -0.79 (-2.32%) Closing price 04:00 PM EasternExtended Trading$33.26 0.00 (0.00%) As of 05:07 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for AtriCure (NASDAQ:ATRC)CurrentInstitutional OwnershipPercentage99.11%Number ofInstitutional Buyers(last 12 months)143TotalInstitutional Inflows(last 12 months)$355.07MNumber ofInstitutional Sellers(last 12 months)77TotalInstitutional Outflows(last 12 months)$294.05M Get ATRC Insider Trade Alerts Want to know when executives and insiders are buying or selling AtriCure stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data ATRC Institutional Buying and Selling by Quarter AtriCure Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/21/2025Acadian Asset Management LLC195,582$6.30M0.0%+2,690.0%0.395% 5/20/2025 Focus Partners Wealth10,277$332K0.0%-37.0%0.021% 5/19/2025 Jane Street Group LLC100,853$3.25M0.0%+658.3%0.204% 5/19/2025 UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC2,196,914$70.87M0.0%+170.8%4.438% 5/16/2025 Goldman Sachs Group Inc.862,668$27.83M0.0%+1.0%1.743% 5/16/2025 Millennium Management LLC623,323$20.11M0.0%+79.2%1.259% 5/16/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.28,146$908K0.0%+4.6%0.057% 5/16/2025 Alliancebernstein L.P.3,676,849$118.62M0.0%-4.1%7.427% 5/16/2025 AQR Capital Management LLC83,685$2.70M0.0%+1.0%0.169% 5/16/2025 Amundi254,934$8.39M0.0%-5.7%0.515% Get the Latest News and Ratings for ATRC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for AtriCure and its competitors with MarketBeat's FREE daily newsletter. 5/16/2025 Adage Capital Partners GP L.L.C.275,000$8.87M0.0%-8.3%0.555% 5/15/2025 First Light Asset Management LLC1,314,718$42.41M4.8%-33.2%2.656% 5/15/2025 Royal Bank of Canada8,024$258K0.0%-5.3%0.016% 5/15/2025 Cubist Systematic Strategies LLC231,480$7.47M0.0%N/A0.468% 5/15/2025 Graham Capital Management L.P.45,446$1.47M0.0%+113.9%0.092% 5/15/2025 Paradigm Capital Management Inc. NY123,100$3.97M0.2%+14.7%0.249% 5/15/2025 DAFNA Capital Management LLC592,273$19.11M5.4%-7.7%1.196% 5/15/2025 Panagora Asset Management Inc.214,551$6.92M0.0%+3.7%0.433% 5/15/2025 Trexquant Investment LP275,548$8.89M0.1%+180.6%0.557% 5/15/2025 Champlain Investment Partners LLC2,137,963$68.97M0.5%-15.4%4.319% 5/14/2025 Corebridge Financial Inc.23,191$748K0.0%-1.5%0.047% 5/14/2025 MetLife Investment Management LLC28,296$913K0.0%-1.3%0.057% 5/14/2025 AlphaQuest LLC18,011$581K0.1%+255.8%0.036% 5/14/2025 Osterweis Capital Management Inc.295,605$9.54M0.0%N/A0.597% 5/14/2025 EntryPoint Capital LLC25,168$812K0.4%N/A0.051% 5/14/2025 Hsbc Holdings PLC25,592$827K0.0%-6.7%0.052% 5/14/2025 BNP PARIBAS ASSET MANAGEMENT Holding S.A.747,806$24.12M0.1%+24.5%1.511% 5/14/2025 Wellington Management Group LLP702,055$22.65M0.0%+7.3%1.418% 5/13/2025 Northern Trust Corp466,201$15.04M0.0%-3.6%0.942% 5/13/2025 Algert Global LLC56,069$1.81M0.0%-41.7%0.113% 5/13/2025 Raymond James Financial Inc.247,436$7.98M0.0%+103.5%0.500% 5/13/2025 Cresset Asset Management LLC11,328$365K0.0%N/A0.023% 5/13/2025 Neuberger Berman Group LLC1,186,065$38.37M0.0%+26.3%2.396% 5/13/2025 Russell Investments Group Ltd.181,719$5.86M0.0%+16.0%0.367% 5/13/2025 Informed Momentum Co LLC85,525$2.76M0.5%N/A0.173% 5/12/2025 Knott David M Jr24,620$794K0.4%N/A0.050% 5/12/2025 Nuveen LLC950,603$30.67M0.0%N/A1.920% 5/12/2025 Entropy Technologies LP6,990$225K0.0%N/A0.014% 5/12/2025 Invesco Ltd.52,162$1.68M0.0%+19.5%0.105% 5/12/2025 Connor Clark & Lunn Investment Management Ltd.223,569$7.21M0.0%+23.0%0.452% White House to reset Social Security? 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And it could have a major impact on how you collect Social Security - Click here to understand what'5/12/2025 Townsquare Capital LLC19,447$627K0.0%+20.5%0.039% 5/12/2025 Swiss National Bank94,500$3.05M0.0%-1.4%0.191% 5/9/2025 Deutsche Bank AG42,641$1.38M0.0%-6.2%0.086% 5/9/2025 Charles Schwab Investment Management Inc.392,861$12.67M0.0%-1.6%0.794% 5/9/2025 Vanguard Group Inc.4,714,371$152.09M0.0%+1.3%9.523% 5/8/2025 US Bancorp DE1,593$51K0.0%+98.1%0.003% 5/8/2025 XTX Topco Ltd16,301$526K0.0%N/A0.033% 5/8/2025 GSA Capital Partners LLP71,761$2.32M0.2%-0.6%0.145% 5/7/2025 Mackenzie Financial Corp29,143$940K0.0%+91.6%0.059% 5/7/2025 Perkins Capital Management Inc.29,900$965K1.0%-1.5%0.060% 5/7/2025 Zurcher Kantonalbank Zurich Cantonalbank 14,435$466K0.0%+10.5%0.029% 5/6/2025 Universal Beteiligungs und Servicegesellschaft mbH90,693$2.93M0.0%N/A0.183% 5/5/2025 GW&K Investment Management LLC981,523$31.66M0.3%-1.9%1.983% 5/5/2025 Allianz Asset Management GmbH122,858$3.96M0.0%+22.8%0.248% 5/5/2025 Teachers Retirement System of The State of Kentucky32,186$1.04M0.0%N/A0.065% 5/5/2025 Jennison Associates LLC593,270$19.14M0.0%N/A1.199% 5/2/2025 Victory Capital Management Inc.57,239$1.85M0.0%N/A0.116% 5/1/2025 Prudent Man Advisors LLC6,248$202K0.1%N/A0.013% 5/1/2025 CWM LLC2,818$91K0.0%+46.2%0.006% 4/29/2025 Envestnet Asset Management Inc.56,656$1.83M0.0%+22.9%0.114% 4/29/2025 Bank of New York Mellon Corp253,193$8.17M0.0%-2.0%0.512% 4/29/2025 Calamos Advisors LLC106,632$3.44M0.0%-3.6%0.215% 4/28/2025 Teacher Retirement System of Texas7,127$230K0.0%N/A0.014% 4/28/2025 First Horizon Advisors Inc.1,447$47K0.0%+135.3%0.003% 4/28/2025 WCM Investment Management LLC193,352$6.15M0.0%+0.8%0.391% 4/24/2025 Diversified Trust Co33,922$1.09M0.0%-7.3%0.069% 4/23/2025 Bessemer Group Inc.34,580$1.12M0.0%-13.4%0.071% 4/15/2025 Assenagon Asset Management S.A.146,096$4.71M0.0%+5.0%0.299% 4/14/2025 Harbor Capital Advisors Inc.28,388$916K0.0%N/A0.058% 4/8/2025 Rhumbline Advisers70,919$2.29M0.0%-10.0%0.145% 4/8/2025 Parallel Advisors LLC7,229$233K0.0%+13.0%0.015% 4/7/2025 GAMMA Investing LLC3,613$112K0.0%+9,664.9%0.007% 3/24/2025 Wellington Management Group LLP654,504$20.00M0.0%-57.6%1.339% 2/25/2025 Heck Capital Advisors LLC1,955$60K0.0%N/A0.004% 2/20/2025 Mackenzie Financial Corp15,214$465K0.0%N/A0.031% 2/17/2025 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC811,370$24.80M0.0%-20.7%1.664% 2/17/2025 Voloridge Investment Management LLC260,412$7.96M0.0%-33.2%0.534% 2/17/2025 Squarepoint Ops LLC55,472$1.70M0.0%-64.6%0.114% 2/17/2025 Two Sigma Advisers LP639,400$19.54M0.0%-3.7%1.312% 2/17/2025 Two Sigma Investments LP610,996$18.67M0.0%-14.9%1.253% 2/17/2025 State of Wyoming2,481$76K0.0%+21.9%0.005% 2/17/2025 Sherbrooke Park Advisers LLC10,792$330K0.1%N/A0.022% 2/17/2025 ProShare Advisors LLC13,330$407K0.0%+49.0%0.027% 2/17/2025 Man Group plc24,368$745K0.0%N/A0.050% 2/17/2025Nuveen Asset Management LLC1,037,348$31.70M0.0%-12.6%2.128% 2/17/2025 Millennium Management LLC347,836$10.63M0.0%-1.8%0.714% 2/17/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.26,916$823K0.0%+3.9%0.055% 2/17/2025 LMR Partners LLP16,313$499K0.0%N/A0.033% 2/17/2025 Graham Capital Management L.P.21,249$649K0.0%N/A0.044% 2/17/2025 Focus Partners Wealth16,306$498K0.0%N/A0.033% Watch This Robotics Demo Before July 23rd (Ad)Jeff Brown, the tech legend who picked shares of Nvidia in 2016 before they jumped by more than 22,000%... Just did a demo of what Nvidia’s CEO said will be "the first multitrillion-dollar robotics industry." Click here to watch the demo…2/17/2025 G2 Investment Partners Management LLC29,691$907K0.2%+7.2%0.061% 2/17/2025 D. E. Shaw & Co. Inc.67,462$2.06M0.0%-42.5%0.138% 2/17/2025 Deutsche Bank AG45,459$1.39M0.0%-69.4%0.093% 2/17/2025 Divisadero Street Capital Management LP212,982$6.51M0.8%-83.6%0.437% 2/17/2025 Centiva Capital LP16,687$510K0.0%N/A0.034% 2/17/2025 Brevan Howard Capital Management LP9,864$301K0.0%-41.1%0.020% 2/17/2025 Balyasny Asset Management L.P.76,190$2.33M0.0%-50.8%0.156% 2/17/2025 Bank of America Corp DE390,816$11.94M0.0%-34.8%0.802% 2/17/2025 BNP Paribas Financial Markets97,310$2.97M0.0%+676.4%0.200% 2/17/2025 Ameriprise Financial Inc.9,638$295K0.0%N/A0.020% (Data available from 1/1/2016 forward) ATRC Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of ATRC shares? During the previous two years, 250 institutional investors and hedge funds held shares of AtriCure. The most heavily invested institutionals were Vanguard Group Inc. ($152.09M), Alliancebernstein L.P. ($118.62M), Hood River Capital Management LLC ($89.35M), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($70.87M), Champlain Investment Partners LLC ($68.97M), Fred Alger Management LLC ($62.89M), and Macquarie Group Ltd. ($58.42M).Learn more on ATRC's institutional investors. What percentage of AtriCure stock is owned by institutional investors? 99.11% of AtriCure stock is owned by institutional investors. Learn more on ATRC's institutional investor holdings. Which institutional investors have been buying AtriCure stock? Of the 205 institutional investors that purchased AtriCure stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Hood River Capital Management LLC ($1.87M), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($1.39M), Nuveen LLC ($950.60K), Millennium Management LLC ($818.51K), First Light Asset Management LLC ($718.95K), Champlain Investment Partners LLC ($691.42K), and Jennison Associates LLC ($593.27K). How much institutional buying is happening at AtriCure? Institutional investors have bought a total of 17,582,862 shares in the last 24 months. This purchase volume represents approximately $560.73M in transactions. Which AtriCure major shareholders have been selling company stock? Of the 129 institutional investors that sold AtriCure stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Wellington Management Group LLP ($1.84M), FMR LLC ($1.14M), Divisadero Street Capital Management LP ($1.08M), First Light Asset Management LLC ($794.47K), Champlain Investment Partners LLC ($734.51K), Assenagon Asset Management S.A. ($652.68K), and Marshall Wace LLP ($513.42K). How much institutional selling is happening at AtriCure? Institutional investors have sold a total of 12,693,227 shares in the last 24 months. This volume of shares sold represents approximately $396.38M in transactions. 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