GP-Act III Acquisition (GPATU) Institutional Ownership $10.72 0.00 (0.00%) As of 10/16/2025 03:30 PM Eastern Add Compare Share Share Ownership Stock AnalysisChartCompetitorsOwnershipSEC FilingsTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for GP-Act III Acquisition (NASDAQ:GPATU)Number ofInstitutional Buyers(last 12 months)1TotalInstitutional Inflows(last 12 months)$79.56KNumber ofInstitutional Sellers(last 12 months)1TotalInstitutional Outflows(last 12 months)$8.84M Get GPATU Insider Trade Alerts Want to know when executives and insiders are buying or selling GP-Act III Acquisition stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. 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Skip Chart & View Institutional Buying and Selling Data GPATU Institutional Buying and Selling by Quarter GP-Act III Acquisition Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails12/3/2024Rivernorth Capital Management LLC17,748$181K0.0%-96.1%0.000% 11/15/2024Rivernorth Capital Management LLC17,748$181K0.0%-96.1%0.000% 11/13/2024Longfellow Investment Management Co. LLC7,800$80K0.0%N/A0.000% 9/20/2024Healthcare of Ontario Pension Plan Trust Fund1,875,000$18.81M0.1%N/A0.000% 8/15/2024CVI Holdings LLC460,000$4.61M4.2%N/A0.000% 8/15/2024Sea Otter Advisors LLC49,950$501K3.6%N/A0.000% 8/15/2024Shaolin Capital Management LLC100,000$1.00M0.0%N/A0.000% 8/15/2024Dryden Capital LLC300,000$3.01M5.1%N/A0.000% 8/14/2024Aristeia Capital L.L.C.500,000$5.02M0.1%N/A0.000% 8/14/2024Glazer Capital LLC275,100$2.76M0.2%N/A0.000% 8/14/2024Berkley W R Corp297,992$2.99M0.1%N/A0.000% 8/12/2024Clear Street LLC472,297$4.74M0.0%N/A0.000% 8/12/2024Highbridge Capital Management LLC10,000$100K0.0%N/A0.000% 8/8/2024Condor Capital Management19,500$196K0.0%N/A0.000% 8/7/2024Cowen AND Company LLC1,185,400$11.89M0.3%N/A0.000% 7/31/2024Picton Mahoney Asset Management1,875,000$18.81M0.7%N/A0.000% 7/29/2024TrueMark Investments LLC17,749$178K0.1%N/A0.000% (Data available from 1/1/2016 forward) GPATU Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of GPATU shares? During the previous two years, 16 institutional investors and hedge funds held shares of GP-Act III Acquisition. The most heavily invested institutionals were Picton Mahoney Asset Management ($18.81M), Healthcare of Ontario Pension Plan Trust Fund ($18.81M), Cowen AND Company LLC ($11.89M), Aristeia Capital L.L.C. ($5.02M), Clear Street LLC ($4.74M), CVI Holdings LLC ($4.61M), and Dryden Capital LLC ($3.01M).Learn more on GP-Act III Acquisition's institutional investors. Which institutional investors have been buying GP-Act III Acquisition's stock? Of the 15 institutional investors that purchased GP-Act III Acquisition's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Healthcare of Ontario Pension Plan Trust Fund ($1.88M), Picton Mahoney Asset Management ($1.88M), Cowen AND Company LLC ($1.19M), Aristeia Capital L.L.C. ($500K), Clear Street LLC ($472.30K), CVI Holdings LLC ($460K), and Dryden Capital LLC ($300K). How much institutional buying is happening at GP-Act III Acquisition? Institutional investors have bought a total of 7,800 shares in the last 24 months. This purchase volume represents approximately $79.56K in transactions. Which of GP-Act III Acquisition's major shareholders have been selling company stock? The following institutional investors have sold GP-Act III Acquisition stock in the last 24 months: Rivernorth Capital Management LLC ($866.90K). How much institutional selling is happening at GP-Act III Acquisition? Institutional investors have sold a total of 866,904 shares in the last 24 months. This volume of shares sold represents approximately $8.84M in transactions. 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