Biomerica (BMRA) Institutional Ownership $2.98 -0.03 (-1.00%) Closing price 10/17/2025 04:00 PM EasternExtended Trading$2.97 -0.01 (-0.34%) As of 07:15 AM 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 ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Biomerica (NASDAQ:BMRA)CurrentInstitutional OwnershipPercentage22.28%Number ofInstitutional Buyers(last 12 months)2TotalInstitutional Inflows(last 12 months)$937.35KNumber ofInstitutional Sellers(last 12 months)2TotalInstitutional Outflows(last 12 months)$3.02M Get BMRA Insider Trade Alerts Want to know when executives and insiders are buying or selling Biomerica stock? 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Skip Chart & View Institutional Buying and Selling Data BMRA Institutional Buying and Selling by Quarter Biomerica Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/8/2025Geode Capital Management LLC21,663$68K0.0%-86.2%0.850% 5/16/2025Granahan Investment Management LLC87,968$50K0.0%-86.6%3.455% 5/13/2025Bulltick Wealth Management LLC137,149$78K0.0%N/A5.387% 2/17/2025Granahan Investment Management LLC658,767$198K0.0%+24.9%3.592% 8/8/2024Perritt Capital Management Inc70,000$31K0.0%N/A0.416% 5/8/2024Russell Investments Group Ltd.225,435$188K0.0%+11.8%1.340% 5/7/2024Fore Capital LLC59,680$50K0.0%+72.1%0.355% 2/7/2024Heritage Investors Management Corp34,598$43K0.0%-50.8%0.206% 2/5/2024Russell Investments Group Ltd.201,563$252K0.0%+15.0%1.198% 11/14/2023Potomac Capital Management Inc.171,519$148K0.2%-57.4%1.020% Get the Latest News and Ratings for BMRA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Biomerica and its competitors with MarketBeat's FREE daily newsletter. 8/14/2023Perritt Capital Management Inc.47,500$65K0.0%-29.6%0.283% 8/14/2023Potomac Capital Management Inc.402,916$548K0.6%-6.8%2.397% 8/14/2023Granahan Investment Management LLC1,144,824$1.56M0.0%-1.1%6.810% 8/8/2023Wasatch Advisors LP953,264$1.30M0.0%-2.2%5.671% 5/15/2023Granahan Investment Management LLC1,157,536$2.17M0.1%+3.1%6.885% 5/15/2023MYDA Advisors LLC73,775$138K0.1%N/A0.439% 5/12/2023Perritt Capital Management Inc.67,500$126K0.1%+170.0%0.401% 5/9/2023Fore Capital LLC49,680$93K0.1%+67.4%0.296% 5/9/2023Russell Investments Group Ltd.174,273$326K0.0%+173.3%1.037% 2/8/2023Russell Investments Group Ltd.63,768$214K0.0%+101.1%0.473% 2/7/2023Hollencrest Capital Management50,000$168K0.0%N/A0.371% 11/15/2022Maple Capital Management Inc.15,000$48K0.0%N/A0.112% 11/15/2022Perritt Capital Management Inc.25,000$98K0.1%-16.7%0.186% 11/4/2022Russell Investments Group Ltd.31,707$124K0.0%N/A0.236% 8/11/2022Group One Trading L.P.11,932$34K0.0%-76.0%0.093% 5/16/2022Granahan Investment Management LLC1,169,841$5.23M0.1%+6.1%9.102% 5/5/2022HCR Wealth Advisors10,000$45K0.0%-50.0%0.078% 4/11/2022Ridgewood Investments LLC60,000$268K0.2%N/A0.467% 2/8/2022Raymond James Financial Services Advisors Inc.13,662$53K0.0%N/A0.106% 2/4/2022HCR Wealth Advisors20,000$78K0.0%+100.0%0.156% 11/15/2021Granahan Investment Management Inc. MA1,031,358$4.64M0.1%+0.3%8.244% 11/9/2021BlackRock Inc.171,813$774K0.0%+8.9%1.373% 11/2/2021HCR Wealth Advisors10,000$45K0.0%N/A0.080% 10/29/2021GWM Advisors LLC31,400$141K0.0%-8.2%0.251% 10/25/2021Eudaimonia Partners LLC11,000$50K0.0%N/A0.088% 8/16/2021M&G Investment Management Ltd.163,205$653K0.0%N/A1.327% 8/16/2021State Street Corp54,231$217K0.0%N/A0.441% 8/13/2021Geode Capital Management LLC74,070$297K0.0%+15.2%0.602% 8/13/2021Vanguard Group Inc.581,110$2.33M0.0%-3.2%4.724% (Data available from 1/1/2016 forward) BMRA Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of BMRA shares? During the previous two years, the following institutional investors and hedge funds held shares of Biomerica shares: Russell Investments Group Ltd. ($188K), Potomac Capital Management Inc. ($148K), Bulltick Wealth Management LLC ($78K), Geode Capital Management LLC ($68K), Granahan Investment Management LLC ($50K), Fore Capital LLC ($50K), and Heritage Investors Management Corp ($43K).Learn more on Biomerica's institutional investors. What percentage of Biomerica's stock is owned by institutional investors? 22.28% of Biomerica's stock is owned by institutional investors. Learn more on BMRA's institutional investor holdings. Which institutional investors have been buying Biomerica's stock? The following institutional investors have purchased Biomerica's stock in the last 24 months: Bulltick Wealth Management LLC ($137.15K), Granahan Investment Management LLC ($131.31K), Perritt Capital Management Inc ($70K), Russell Investments Group Ltd. ($50.16K), and Fore Capital LLC ($25K). How much institutional buying is happening at Biomerica? Institutional investors have bought a total of 268,455 shares in the last 24 months. This purchase volume represents approximately $937.35K in transactions. Which of Biomerica's major shareholders have been selling company stock? The following institutional investors have sold Biomerica stock in the last 24 months: Granahan Investment Management LLC ($570.80K), and Geode Capital Management LLC ($134.92K). How much institutional selling is happening at Biomerica? Institutional investors have sold a total of 705,719 shares in the last 24 months. This volume of shares sold represents approximately $3.02M in transactions. 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