American Shared Hospital Services (AMS) Institutional Ownership $3.03 +0.03 (+1.00%) (As of 09:43 AM ET) Add Compare Share Share Ownership Stock AnalysisChartEarningsFinancialsHeadlinesOwnershipSEC FilingsShort Interest Institutional Ownership Changes (13F Filings) for American Shared Hospital Services (NYSEAMERICAN:AMS)CurrentInstitutional OwnershipPercentage23.16%Number ofInstitutional Buyers(last 12 months)3Number ofInstitutional Sellers(last 12 months)1 Get AMS Insider Trade Alerts Want to know when executives and insiders are buying or selling American Shared Hospital Services stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address Skip Chart & View Institutional Buying and Selling Data AMS Institutional Buying and Selling by Quarter Ad Darwin2025 AI Stock Picks: 2 Hidden Gems Under $10/ShareThe AI sector continues to make waves as we move into 2025, and now is a prime opportunity to get involved—without stretching your budget! We’ve just uncovered 2 promising AI stocks trading for under $10/share, and they’re positioned for impressive growth in the coming months.👉[Click here to get your FREE report delivered instantly!] American Shared Hospital Services Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/9/2024 Renaissance Technologies LLC55,501$177K0.0%+31.2%0.877% 8/9/2024 Dimensional Fund Advisors LP179,637$574K0.0%+4.9%2.838% 5/10/2024 Acadian Asset Management LLC86,399$254K0.0%-38.7%1.365% 5/7/2024 Empowered Funds LLC10,468$31K0.0%N/A0.165% 10/11/2023 Canton Hathaway LLC20,000$49K0.0%-33.3%0.321% 8/7/2023 Acadian Asset Management LLC140,864$358K0.0%-5.7%2.268% Get the Latest News and Ratings for AMS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for American Shared Hospital Services and its competitors with MarketBeat's FREE daily newsletter. 4/11/2023 Canton Hathaway LLC30,000$84K0.0%+50.0%0.488% 1/19/2023 Canton Hathaway LLC20,000$59K0.0%+100.0%0.325% 10/17/2022 Canton Hathaway LLC10,000$26K0.0%N/A0.164% 8/2/2022 Financial Counselors Inc.37,123$82K0.0%N/A0.611% 11/16/2021 Squarepoint Ops LLC27,453$76K0.0%-13.9%0.468% 8/17/2021 Bridgeway Capital Management LLC220,800$647K0.0%+47.0%3.806% 8/16/2021 Squarepoint Ops LLC31,871$93K0.0%N/A0.549% 8/13/2021 Vanguard Group Inc.104,644$307K0.0%+126.6%1.804% 8/12/2021 Dimensional Fund Advisors LP220,839$647K0.0%-9.8%3.807% 8/11/2021Susquehanna Fundamental Investments LLC10,600$31K0.0%N/A0.183% 7/31/2021 GWM Advisors LLC31,595$93K0.0%+46.3%0.545% 5/21/2021 Citadel Advisors LLC27,220$75K0.0%+164.3%0.469% 5/18/2021 Citadel Advisors LLC27,220$75K0.0%+164.3%0.469% 5/14/2021 Dimensional Fund Advisors LP244,723$678K0.0%+34.9%4.219% 5/11/2021 Acadian Asset Management LLC44,697$124K0.0%+28.9%0.771% 3/8/2021 Dimensional Fund Advisors LP181,429$403K0.0%-12.1%3.149% 2/25/2021 Dimensional Fund Advisors LP181,429$403K0.0%-12.1%3.149% 2/10/2021 Renaissance Technologies LLC48,300$107K0.0%N/A0.838% 1/27/2021 GWM Advisors LLC21,600$48K0.0%N/A0.375% 12/11/2020Virtu Financial LLC22,527$41K0.0%N/A0.391% 11/9/2020 Acadian Asset Management LLC30,109$55K0.0%+1,908.6%0.529% (Data available from 1/1/2016 forward) AMS Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of AMS shares? During the previous two years, the following institutional investors and hedge funds held shares of American Shared Hospital Services shares: Dimensional Fund Advisors LP ($574K), Acadian Asset Management LLC ($254K), Renaissance Technologies LLC ($177K), and Canton Hathaway LLC ($49K), Empowered Funds LLC ($31K).Learn more on AMS's institutional investors. What percentage of American Shared Hospital Services stock is owned by institutional investors? 23.16% of American Shared Hospital Services stock is owned by institutional investors. Learn more on AMS's institutional investor holdings. Which institutional investors have been buying American Shared Hospital Services stock? The following institutional investors have purchased American Shared Hospital Services stock in the last 24 months: Canton Hathaway LLC ($20K), Renaissance Technologies LLC ($13.20K), Empowered Funds LLC ($10.47K), and Dimensional Fund Advisors LP ($8.44K). How much institutional buying is happening at American Shared Hospital Services? Institutional investors have bought a total of 52,105 shares in the last 24 months. This purchase volume represents approximately $57.40K in transactions. Which American Shared Hospital Services major shareholders have been selling company stock? The following institutional investors have sold American Shared Hospital Services stock in the last 24 months: Acadian Asset Management LLC ($63.04K), and Canton Hathaway LLC ($10K). How much institutional selling is happening at American Shared Hospital Services? Institutional investors have sold a total of 73,040 shares in the last 24 months. This volume of shares sold represents approximately $21.91K in transactions. 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