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AtriCure (ATRC) Institutional Ownership

AtriCure logo
$44.30 +0.81 (+1.86%)
Closing price 04:00 PM Eastern
Extended Trading
$44.33 +0.03 (+0.07%)
As of 05:15 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 Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for AtriCure (NASDAQ:ATRC)

Current
Institutional Ownership
Percentage
99.11%
Number of
Institutional Buyers
(last 12 months)
143
Total
Institutional Inflows
(last 12 months)
$323.32M
Number of
Institutional Sellers
(last 12 months)
75
Total
Institutional Outflows
(last 12 months)
$185.21M
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ATRC Institutional Buying and Selling by Quarter

AtriCure Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/14/2026Legal & General Group Plc39,893$1.12M0.0%N/A0.078%
8/14/2026The Manufacturers Life Insurance Company 24,985$699K0.0%N/A0.049%
8/14/2026Paradigm Capital Management Inc. NY123,100$3.44M0.1%N/A0.242%
8/14/2026Algert Global LLC14,239$398K0.0%-65.1%0.028%
8/13/2026Sanctuary Advisors LLC17,515$490K0.0%N/A0.034%
8/13/2026Connor Clark & Lunn Investment Management Ltd.335,541$9.39M0.0%N/A0.660%
8/13/2026 Globeflex Capital L P4,496$126K0.0%N/A0.009%
8/12/2026 Commerce Bank11,445$320K0.0%N/A0.022%
8/12/2026 Emerald Investment Advisers LLC79,102$2.21M0.1%N/A0.155%
8/12/2026 Ieq Capital LLC41,484$1.16M0.0%N/A0.082%
8/11/2026 Allworth Financial LP1,527$43K0.0%N/A0.003%
8/11/2026 B. Metzler seel. Sohn & Co. AG49,876$1.40M0.0%N/A0.098%
8/11/2026 Advisors Capital Management LLC174,496$4.88M0.1%N/A0.343%
8/10/2026 Diversify Advisory Services LLC11,993$448K0.0%N/A0.024%
8/7/2026 BlackRock Inc.4,474,548$125.20M0.0%N/A8.797%
8/7/2026 Deutsche Bank AG59,668$1.67M0.0%N/A0.117%
8/7/2026 Rice Hall James & Associates LLC134,207$3.76M0.2%N/A0.264%
8/6/2026 Global Retirement Partners LLC1,874$52K0.0%N/A0.004%
8/6/2026 Bank of New York Mellon Corp141,275$3.95M0.0%N/A0.278%
7/10/2026 Wasatch Advisors LP233,604$6.54M0.0%-8.0%0.461%
7/10/2026 Handelsbanken Fonder AB22,800$638K0.0%+12.3%0.045%
7/9/2026 First Bank & Trust8,874$248K0.0%-4.4%0.018%
7/9/2026 Tactive Advisors LLC13,367$374K0.1%N/A0.026%
7/8/2026 Assenagon Asset Management S.A.62,334$1.74M0.0%N/A0.123%
7/7/2026 Harbor Investment Advisory LLC1,426$40K0.0%N/A0.003%
5/19/2026Bank of America Corp DE768,561$21.93M0.0%+13.7%1.518%
5/18/2026 Amundi225,932$6.45M0.0%-2.1%0.446%
5/18/2026California State Teachers Retirement System59,947$1.71M0.0%+33.3%0.118%
5/18/2026Royal Bank of Canada2,184$61K0.0%-30.5%0.004%
5/16/2026Quantinno Capital Management LP9,726$277K0.0%N/A0.019%
5/16/2026First Light Asset Management LLC729,521$20.81M1.9%-37.9%1.441%
5/16/2026Lazard Asset Management LLC54,015$1.54M0.0%+8.6%0.107%
5/15/2026 Rice Hall James & Associates LLC25,210$719K0.0%N/A0.050%
5/15/2026Entropy Technologies LP11,493$328K0.0%+26.5%0.023%
5/14/2026Renaissance Technologies LLC308,700$8.81M0.0%-4.1%0.610%
5/14/2026Arrowstreet Capital Limited Partnership277,682$7.92M0.0%N/A0.548%
5/14/2026Caxton Associates LLP10,472$299K0.0%+52.1%0.021%
5/14/2026Sei Investments Co.260,788$7.44M0.0%+64.7%0.515%
5/14/2026 State of Wyoming3,537$101K0.0%+87.7%0.007%
5/13/2026 First Trust Advisors LP189,285$5.40M0.0%+60.7%0.374%
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5/7/2026WCM Investment Management LLC359,761$10.17M0.0%-3.5%0.710%
5/7/2026 Dimensional Fund Advisors LP997,759$28.47M0.0%+8.2%1.970%
5/7/2026 Parallel Advisors LLC3,643$104K0.0%-10.2%0.007%
5/6/2026 Bessemer Group Inc.9,570$273K0.0%-71.1%0.019%
5/5/2026 Bank of New York Mellon Corp130,650$3.73M0.0%-3.6%0.258%
5/4/2026 Principal Financial Group Inc.64,296$1.83M0.0%+45.7%0.127%
5/2/2026 Diversify Wealth Management LLC11,631$318K0.0%+27.0%0.023%
5/2/2026 Valmark Advisers Inc.13,080$373K0.0%N/A0.026%
5/1/2026 Fifth Third Bancorp1,781$51K0.0%N/A0.004%
4/24/2026 Perkins Capital Management Inc.26,100$745K0.7%-4.9%0.052%
4/21/2026 Wasatch Advisors LP253,931$7.25M0.0%-28.2%0.502%
4/16/2026 SG Americas Securities LLC9,627$275K0.0%-74.0%0.019%
4/16/2026 Diversified Trust Co40,090$1.14M0.0%+7.1%0.079%
3/20/2026Hsbc Holdings PLC17,224$686K0.0%+13.3%0.035%
3/17/2026Rockefeller Capital Management L.P.3,983$158K0.0%+43.4%0.008%
2/19/2026Invesco Ltd.74,435$2.95M0.0%+7.9%0.150%
2/18/2026Mackenzie Financial Corp13,597$545K0.0%+5.3%0.027%
2/18/2026XTX Topco Ltd11,069$438K0.0%+88.0%0.022%
2/18/2026Voloridge Investment Management LLC220,290$8.72M0.0%-19.5%0.443%
2/18/2026Wellington Management Group LLP3,917,991$155.00M0.1%-8.7%7.880%
2/18/2026Susquehanna Portfolio Strategies LLC86,325$3.42M0.1%N/A0.174%
2/18/2026Osterweis Capital Management Inc.203,575$8.05M0.3%-36.8%0.409%
2/18/2026Millennium Management LLC163,795$6.48M0.0%-53.6%0.329%
2/18/2026Man Group plc17,401$688K0.0%-70.8%0.035%
2/18/2026Engineers Gate Manager LP58,479$2.31M0.0%+104.2%0.118%
2/17/2026PDT Partners LLC21,201$839K0.1%-10.5%0.043%
2/17/2026AQR Capital Management LLC99,956$3.95M0.0%+18.8%0.201%
2/17/2026Lazard Asset Management LLC49,719$1.97M0.0%+6.1%0.100%
2/17/2026First Light Asset Management LLC1,175,445$46.50M3.6%+32.0%2.364%
2/17/2026Trexquant Investment LP77,667$3.07M0.0%+16.8%0.156%
2/17/2026 Amundi230,852$9.13M0.0%+5.2%0.464%
2/17/2026Jump Financial LLC16,664$659K0.0%-57.9%0.034%
2/17/2026Price T Rowe Associates Inc. MD50,577$2.00M0.0%+4.4%0.102%
2/17/2026Osaic Holdings Inc.7,184$284K0.0%+195.6%0.014%
2/17/2026Adage Capital Partners GP L.L.C.110,210$4.36M0.0%-37.0%0.222%
2/17/2026 Russell Investments Group Ltd.14,864$588K0.0%+83.0%0.030%
2/17/2026Kemnay Advisory Services Inc.2,892$114K0.0%N/A0.006%
2/17/2026State of Wisconsin Investment Board164,199$6.50M0.0%-24.9%0.330%
2/17/2026Captrust Financial Advisors7,944$314K0.0%+7.9%0.016%
2/17/2026ExodusPoint Capital Management LP8,966$355K0.0%N/A0.018%
2/17/2026Royal Bank of Canada3,144$124K0.0%-20.9%0.006%
2/17/2026Graham Capital Management L.P.7,087$280K0.0%-38.3%0.014%
2/16/2026Squarepoint Ops LLC85,803$3.39M0.0%-50.9%0.173%
2/16/2026Verition Fund Management LLC11,301$447K0.0%-36.3%0.023%
2/16/2026 Panagora Asset Management Inc.226,575$8.96M0.0%+5.0%0.456%
2/16/2026Kennedy Capital Management LLC837,326$33.13M0.7%+0.0%1.684%
2/16/2026Entropy Technologies LP9,085$359K0.0%N/A0.018%
2/16/2026Barclays PLC92,606$3.66M0.0%+8.3%0.186%
2/13/2026 Arete Wealth Advisors LLC5,600$222K0.0%N/A0.011%
2/13/2026Marshall Wace LLP913,453$36.14M0.0%+63.4%1.837%
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2/13/2026 Stifel Financial Corp11,750$465K0.0%N/A0.024%
2/13/2026Neuberger Berman Group LLC1,086,326$43.00M0.0%-8.8%2.185%
2/13/2026 Smartleaf Asset Management LLC1,146$46K0.0%+59.8%0.002%
2/13/2026Bridgefront Capital LLC12,506$495K0.1%N/A0.025%
2/13/2026 First Trust Advisors LP117,758$4.66M0.0%-12.8%0.237%
2/13/2026 OpenArc Corporate Advisory LLC44,084$1.74M0.0%N/A0.089%
2/13/2026 Champlain Investment Partners LLC1,173,605$46.43M0.5%-40.7%2.360%
2/13/2026Charles Schwab Investment Management Inc.437,883$17.32M0.0%+2.3%0.881%
2/13/2026 State Street Corp1,242,374$49.15M0.0%-1.7%2.499%
2/13/2026Dynamic Technology Lab Private Ltd13,013$515K0.1%+110.9%0.026%


ATRC Institutional Ownership - Frequently Asked Questions

During the previous two years, 250 institutional investors and hedge funds held shares of AtriCure. The most heavily invested institutionals were Vanguard Group Inc. ($193.99M), Wellington Management Group LLP ($155.00M), Alliancebernstein L.P. ($125.44M), BlackRock Inc. ($125.20M), Hood River Capital Management LLC ($100.31M), State Street Corp ($49.15M), and Geode Capital Management LLC ($47.14M).Learn more on AtriCure's institutional investors.

99.11% of AtriCure's stock is owned by institutional investors. Learn more on ATRC's institutional investor holdings.

Of the 226 institutional investors that purchased AtriCure's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($4.47M), Hood River Capital Management LLC ($1.93M), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($1.39M), First Light Asset Management LLC ($970.61K), Nuveen LLC ($950.60K), Millennium Management LLC ($818.51K), and Osterweis Capital Management Inc. ($617.69K).

Institutional investors have bought a total of 10,214,034 shares in the last 24 months. This purchase volume represents approximately $321.50M in transactions.

Of the 74 institutional investors that sold AtriCure's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Champlain Investment Partners LLC ($843.15K), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($633.14K), First Light Asset Management LLC ($570.73K), Marshall Wace LLP ($446.08K), Wellington Management Group LLP ($374.10K), Wasatch Advisors LP ($273.22K), and Nuveen LLC ($220.32K).

Institutional investors have sold a total of 5,094,309 shares in the last 24 months. This volume of shares sold represents approximately $185.21M in transactions.


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Institutional ownership data for NASDAQ:ATRC is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/14/2026. New 13F filings are added each quarter as they're published.
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