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AtriCure (ATRC) Institutional Ownership

AtriCure logo
$52.46 -0.13 (-0.25%)
As of 04:00 PM Eastern
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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)
$431.52M
Number of
Institutional Sellers
(last 12 months)
71
Total
Institutional Outflows
(last 12 months)
$194.44M
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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
8/26/2026 Amundi264,854$7.41M0.0%+17.2%0.521%
8/26/2026 HighTower Advisors LLC8,490$238K0.0%N/A0.017%
8/25/2026 VIRGINIA RETIREMENT SYSTEMS ET Al17,200$481K0.0%N/A0.034%
8/24/2026 California State Teachers Retirement System1,634,927$45.75M0.0%+2,627.3%3.214%
8/22/2026 Three Seasons Wealth LLC7,152$200K0.0%N/A0.014%
8/20/2026 Grandeur Peak Global Advisors LLC587,399$16.44M4.0%+53.8%1.155%
8/20/2026 Headlands Technologies LLC10,064$282K0.0%N/A0.020%
8/20/2026 Susquehanna Fundamental Investments LLC50,484$1.41M0.0%N/A0.099%
8/19/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC131,853$3.69M0.0%-76.2%0.259%
8/19/2026 Wellington Management Group LLP3,495,603$97.81M0.0%+3.3%6.872%
8/18/2026 Grandeur Peak Global Advisors LLC587,399$16.44M3.3%N/A1.155%
8/17/2026 Bank of America Corp DE874,370$24.47M0.0%N/A1.719%
8/15/2026 Man Group plc24,443$684K0.0%N/A0.048%
8/15/2026 Jupiter Topco LLC22,883$640K0.0%N/A0.045%
8/15/2026 Meros Investment Management LP170,000$4.76M0.0%N/A0.334%
8/14/2026 Canada Pension Plan Investment Board14,100$395K0.0%N/A0.028%
8/14/2026 Osterweis Capital Management Inc.501,355$14.03M0.7%N/A0.986%
8/14/2026 Legal & General Group Plc39,893$1.12M0.0%N/A0.078%
8/14/2026 The Manufacturers Life Insurance Company 24,985$699K0.0%N/A0.049%
8/14/2026 Paradigm Capital Management Inc. NY123,100$3.44M0.1%N/A0.242%
8/14/2026 Algert Global LLC14,239$398K0.0%-65.1%0.028%
8/13/2026 Sanctuary Advisors LLC17,515$490K0.0%N/A0.034%
8/13/2026 Connor 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%
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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%
5/19/2026 Bank of America Corp DE768,561$21.93M0.0%+13.7%1.518%
5/18/2026 Amundi225,932$6.45M0.0%-2.1%0.446%
5/18/2026 California State Teachers Retirement System59,947$1.71M0.0%+33.3%0.118%
5/18/2026 Royal Bank of Canada2,184$61K0.0%-30.5%0.004%
5/16/2026 Quantinno Capital Management LP9,726$277K0.0%N/A0.019%
5/16/2026 First Light Asset Management LLC729,521$20.81M1.9%-37.9%1.441%
5/16/2026 Lazard 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%
5/15/2026 Entropy Technologies LP11,493$328K0.0%+26.5%0.023%
5/14/2026 Renaissance Technologies LLC308,700$8.81M0.0%-4.1%0.610%
5/14/2026 Arrowstreet Capital Limited Partnership277,682$7.92M0.0%N/A0.548%
5/14/2026 Caxton Associates LLP10,472$299K0.0%+52.1%0.021%
5/14/2026 Sei 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%
5/7/2026 WCM 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%
3/20/2026 Hsbc Holdings PLC17,224$686K0.0%+13.3%0.035%
3/17/2026 Rockefeller Capital Management L.P.3,983$158K0.0%+43.4%0.008%
2/19/2026 Invesco Ltd.74,435$2.95M0.0%+7.9%0.150%
2/18/2026 Mackenzie Financial Corp13,597$545K0.0%+5.3%0.027%
2/18/2026 XTX Topco Ltd11,069$438K0.0%+88.0%0.022%
2/18/2026 Voloridge Investment Management LLC220,290$8.72M0.0%-19.5%0.443%
2/18/2026 Wellington Management Group LLP3,917,991$155.00M0.1%-8.7%7.880%
2/18/2026 Susquehanna Portfolio Strategies LLC86,325$3.42M0.1%N/A0.174%
2/18/2026 Osterweis Capital Management Inc.203,575$8.05M0.3%-36.8%0.409%
2/18/2026 Millennium Management LLC163,795$6.48M0.0%-53.6%0.329%
2/18/2026 Man Group plc17,401$688K0.0%-70.8%0.035%
2/18/2026 Engineers Gate Manager LP58,479$2.31M0.0%+104.2%0.118%
2/17/2026 PDT Partners LLC21,201$839K0.1%-10.5%0.043%
2/17/2026 AQR Capital Management LLC99,956$3.95M0.0%+18.8%0.201%
2/17/2026 Lazard Asset Management LLC49,719$1.97M0.0%+6.1%0.100%
2/17/2026 First Light Asset Management LLC1,175,445$46.50M3.6%+32.0%2.364%
2/17/2026 Trexquant Investment LP77,667$3.07M0.0%+16.8%0.156%
2/17/2026 Amundi230,852$9.13M0.0%+5.2%0.464%
2/17/2026 Jump Financial LLC16,664$659K0.0%-57.9%0.034%
2/17/2026 Price T Rowe Associates Inc. MD50,577$2.00M0.0%+4.4%0.102%
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2/17/2026 Osaic Holdings Inc.7,184$284K0.0%+195.6%0.014%
2/17/2026 Adage 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%
2/17/2026 Kemnay Advisory Services Inc.2,892$114K0.0%N/A0.006%
2/17/2026 State of Wisconsin Investment Board164,199$6.50M0.0%-24.9%0.330%
2/17/2026 Captrust Financial Advisors7,944$314K0.0%+7.9%0.016%
2/17/2026 ExodusPoint Capital Management LP8,966$355K0.0%N/A0.018%
2/17/2026 Royal Bank of Canada3,144$124K0.0%-20.9%0.006%
2/17/2026 Graham Capital Management L.P.7,087$280K0.0%-38.3%0.014%
2/16/2026 Squarepoint Ops LLC85,803$3.39M0.0%-50.9%0.173%


ATRC Institutional Ownership - Frequently Asked Questions

During the previous two years, 252 institutional investors and hedge funds held shares of AtriCure. The most heavily invested institutionals were Vanguard Group Inc. ($193.99M), Alliancebernstein L.P. ($125.44M), BlackRock Inc. ($125.20M), Hood River Capital Management LLC ($100.31M), Wellington Management Group LLP ($97.81M), 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 230 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), California State Teachers Retirement System ($1.59M), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($1.39M), Osterweis Capital Management Inc. ($1.12M), Bank of America Corp DE ($1.08M), Nuveen LLC ($950.60K), and Grandeur Peak Global Advisors LLC ($792.90K).

Institutional investors have bought a total of 14,197,481 shares in the last 24 months. This purchase volume represents approximately $431.52M in transactions.

Of the 71 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: UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($1.06M), Champlain Investment Partners LLC ($843.15K), 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 5,438,117 shares in the last 24 months. This volume of shares sold represents approximately $194.44M 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 8/26/2026. New 13F filings are added each quarter as they're published.
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