Horizon Space Acquisition I (HSPO) Institutional Ownership $12.12 +0.08 (+0.62%) Closing price 08/22/2025 09:30 AM EasternExtended Trading$12.12 0.00 (0.00%) As of 08/22/2025 04:04 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 Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisChartCompetitorsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Horizon Space Acquisition I (NASDAQ:HSPO)CurrentInstitutional OwnershipPercentage69.10%Number ofInstitutional Buyers(last 12 months)4TotalInstitutional Inflows(last 12 months)$4.94MNumber ofInstitutional Sellers(last 12 months)7TotalInstitutional Outflows(last 12 months)$7.76M Get HSPO Insider Trade Alerts Want to know when executives and insiders are buying or selling Horizon Space Acquisition I stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data HSPO Institutional Buying and Selling by Quarter Horizon Space Acquisition I Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/13/2025 Clear Street LLC4,864$58K0.0%+138.1%0.117% 8/4/2025 Wolverine Asset Management LLC367,049$4.40M0.0%-2.8%8.802% 5/12/2025Mizuho Securities USA LLC375,210$4.39M0.1%-6.1%8.998% 5/12/2025 Wolverine Asset Management LLC377,729$4.49M0.1%-5.3%9.060% 2/25/2025 Polar Asset Management Partners Inc.150,000$1.74M0.0%-25.0%1.915% 2/17/2025 Polar Asset Management Partners Inc.150,000$1.74M0.0%-25.0%1.916% 2/14/2025 Berkley W R Corp205,129$2.34M0.1%+71.9%2.620% 2/14/2025 Westchester Capital Management LLC297,000$3.39M0.2%-23.7%3.793% 2/11/2025Mizuho Securities USA LLC399,500$4.51M0.1%-36.2%5.102% 2/3/2025 Wolverine Asset Management LLC398,712$4.62M0.0%-25.0%5.092% Get the Latest News and Ratings for HSPO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Horizon Space Acquisition I and its competitors with MarketBeat's FREE daily newsletter. 11/14/2024 Glazer Capital LLC373,605$4.19M0.2%-1.4%4.770% 11/14/2024 Westchester Capital Management LLC389,400$4.36M0.2%+23.9%4.972% 11/13/2024 Crossingbridge Advisors LLC153,522$1.72M1.3%-2.1%1.961% 11/12/2024Mizuho Securities USA LLC626,071$7.00M0.1%+77.9%7.996% 11/4/2024 Wolverine Asset Management LLC531,943$5.96M0.1%-0.5%6.794% 10/22/2024Spartan Fund Management Inc.32,833$368K1.1%-60.4%0.380% 8/14/2024 Glazer Capital LLC378,861$4.18M0.3%-1.6%4.381% 8/7/2024Cowen AND Company LLC252,422$2.79M0.1%+1.7%2.919% 8/2/2024 Wolverine Asset Management LLC534,857$5.91M0.1%+1.1%6.185% 7/31/2024Spartan Fund Management Inc.82,833$913K2.6%N/A0.958% 5/16/2024 Berkley W R Corp119,316$1.30M0.1%-50.0%1.379% 5/14/2024 K2 Principal Fund L.P.75,000$816K0.1%N/A0.867% 5/14/2024 Karpus Management Inc.582,835$6.34M0.2%-3.3%6.740% 5/10/2024Mizuho Securities USA LLC308,389$3.34M0.1%-24.0%3.566% 2/15/2024 Glazer Capital LLC382,709$4.11M0.4%+11.2%4.424% 2/13/2024 Karpus Management Inc.602,900$6.47M0.2%-5.3%6.970% 2/13/2024 Cohanzick Management LLC211,196$2.27M1.4%N/A2.442% 2/8/2024Mizuho Securities USA LLC405,632$4.32M0.1%-37.0%4.689% 2/1/2024 Wolverine Asset Management LLC528,857$5.68M0.0%+53.9%6.115% 11/21/2023 Shaolin Capital Management LLC150,000$1.58M0.0%-124.6%1.734% 11/15/2023 Radcliffe Capital Management L.P.191,851$2.03M0.3%-7.1%2.218% 11/14/2023 AQR Arbitrage LLC196,133$2.07M0.1%-20.3%2.130% 11/13/2023 Wolverine Asset Management LLC343,557$3.63M0.0%+227.4%3.730% 11/9/2023 Karpus Management Inc.636,475$6.72M0.2%-24.7%6.911% 11/9/2023Cowen AND Company LLC203,217$2.15M0.2%+113.1%2.206% 11/9/2023Mizuho Securities USA LLC644,000$6.76M0.2%+114.1%6.992% 11/8/2023 GABELLI & Co INVESTMENT ADVISERS INC.60,785$642K0.1%-10.2%0.660% 11/6/2023 Periscope Capital Inc.150,000$1.58M0.2%-41.0%1.628% 8/11/2023 Karpus Management Inc.845,300$8.78M0.3%+20.2%9.178% 8/11/2023 Weiss Asset Management LP210,213$2.20M0.2%-14.3%2.282% Elon Musk’s New Technology (Ad)Elon Musk is building something in Memphis that could eclipse even Tesla and SpaceX. 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It’s smaller than Tesla or Nvidia, but both rely on it for future growth.Get the full details on the AI company behind Musk’s next big move.8/10/2023 GABELLI & Co INVESTMENT ADVISERS INC.67,700$703K0.1%N/A0.735% 8/9/2023Mizuho Securities USA LLC300,749$3.07M0.1%+21.8%3.265% 8/7/2023Cowen AND Company LLC95,370$991K0.1%N/A1.036% 8/2/2023 Bank of Montreal Can59,706$618K0.0%N/A0.648% 5/24/2023 Mint Tower Capital Management B.V.75,000$767K0.1%N/A0.814% 5/12/2023 Periscope Capital Inc.253,500$2.59M0.1%N/A2.752% 5/11/2023 Karpus Management Inc.703,350$7.19M0.2%N/A7.637% 5/11/2023 Kim LLC296,542$3.03M0.2%N/A3.220% 5/10/2023 Weiss Asset Management LP245,184$2.51M0.2%N/A2.662% 5/10/2023Exos TFP Holdings LLC169,047$1.73M0.4%N/A1.835% 5/10/2023 Mint Tower Capital Management B.V.225,000$781K0.1%N/A2.443% 5/9/2023 Mint Tower Capital Management B.V.225,000$1.54M0.1%N/A2.443% 5/9/2023Spartan Fund Management Inc.200,000$2.04M1.0%N/A2.172% 5/8/2023 Wolverine Asset Management LLC104,925$1.07M0.0%N/A1.139% 5/5/2023Segantii Capital Management Ltd50,000$512K0.0%N/A0.543% (Data available from 1/1/2016 forward) HSPO Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of HSPO shares? During the previous two years, 18 institutional investors and hedge funds held shares of Horizon Space Acquisition I. The most heavily invested institutionals were Karpus Management Inc. ($6.34M), Wolverine Asset Management LLC ($4.40M), Mizuho Securities USA LLC ($4.39M), Glazer Capital LLC ($4.19M), Westchester Capital Management LLC ($3.39M), Cowen AND Company LLC ($2.79M), and Berkley W R Corp ($2.34M).Learn more on Horizon Space Acquisition I's institutional investors. What percentage of Horizon Space Acquisition I's stock is owned by institutional investors? 69.10% of Horizon Space Acquisition I's stock is owned by institutional investors. Learn more on HSPO's institutional investor holdings. Which institutional investors have been buying Horizon Space Acquisition I's stock? Of the 11 institutional investors that purchased Horizon Space Acquisition I's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Shaolin Capital Management LLC ($759.85K), Mizuho Securities USA LLC ($617.47K), Wolverine Asset Management LLC ($429.93K), Cohanzick Management LLC ($211.20K), Cowen AND Company LLC ($112.02K), Berkley W R Corp ($85.81K), and Spartan Fund Management Inc. ($82.83K). How much institutional buying is happening at Horizon Space Acquisition I? Institutional investors have bought a total of 437,849 shares in the last 24 months. This purchase volume represents approximately $4.94M in transactions. Which of Horizon Space Acquisition I's major shareholders have been selling company stock? The following institutional investors have sold Horizon Space Acquisition I stock in the last 24 months: Mizuho Securities USA LLC ($250.86K), Wolverine Asset Management LLC ($167.81K), Polar Asset Management Partners Inc. ($100K), Westchester Capital Management LLC ($92.40K), Spartan Fund Management Inc. ($50K), Glazer Capital LLC ($5.26K), and Crossingbridge Advisors LLC ($3.27K). How much institutional selling is happening at Horizon Space Acquisition I? Institutional investors have sold a total of 669,595 shares in the last 24 months. This volume of shares sold represents approximately $7.76M in transactions. Related Companies Bioceres Crop Solutions Major Shareholders Fold Major Shareholders Helix Acquisition Corp. II Major Shareholders Spark I Acquisition Major Shareholders B. Riley Financial Major Shareholders Joint Major Shareholders Siebert Financial Major Shareholders Franklin Street Properties Major Shareholders RF Acquisition Corp II Major Shareholders Modiv Industrial Major Shareholders This page (NASDAQ:HSPO) was last updated on 8/24/2025 by MarketBeat.com Staff From Our PartnersGENIUS Act: Cancel Your Money?A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. B...Priority Gold | SponsoredEveryone’s watching Nvidia right now. Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | SponsoredIs Elon's empire crumbling?The Tesla Shock Nobody Sees Coming While headlines scream "Tesla is doomed"... 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