Horizon Space Acquisition I (HSPO) Institutional Ownership $12.12 -0.04 (-0.29%) As of 08/1/2025 10:11 AM Eastern This is a fair market value 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)5TotalInstitutional Inflows(last 12 months)$4.96MNumber ofInstitutional Sellers(last 12 months)7TotalInstitutional Outflows(last 12 months)$7.70M Get HSPO Insider Trade Alerts Want to know when executives and insiders are buying or selling Horizon Space Acquisition I 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 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 CompanyDetails5/12/2025Mizuho Securities USA LLC375,210$4.39M0.1%-6.1%8.998% 5/12/2025Wolverine Asset Management LLC377,729$4.49M0.1%-5.3%9.060% 2/25/2025Polar Asset Management Partners Inc.150,000$1.74M0.0%-25.0%1.915% 2/17/2025Polar Asset Management Partners Inc.150,000$1.74M0.0%-25.0%1.916% 2/14/2025Berkley W R Corp205,129$2.34M0.1%+71.9%2.620% 2/14/2025Westchester 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% 2/3/2025Wolverine Asset Management LLC398,712$4.62M0.0%-25.0%5.092% 11/14/2024Glazer Capital LLC373,605$4.19M0.2%-1.4%4.770% 11/14/2024Westchester Capital Management LLC389,400$4.36M0.2%+23.9%4.972% 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. 11/13/2024Crossingbridge Advisors LLC153,522$1.72M1.3%-2.1%1.961% 11/12/2024Mizuho Securities USA LLC626,071$7.00M0.1%+77.9%7.996% 11/4/2024Wolverine 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% 8/14/2024Glazer Capital LLC378,861$4.18M0.3%-1.6%4.381% 8/7/2024Cowen AND Company LLC252,422$2.79M0.1%+1.7%2.919% 8/2/2024Wolverine Asset Management LLC534,857$5.91M0.1%+1.1%6.185% 7/31/2024Spartan Fund Management Inc.82,833$913K2.6%N/A0.958% 5/16/2024Berkley W R Corp119,316$1.30M0.1%-50.0%1.379% 5/14/2024K2 Principal Fund L.P.75,000$816K0.1%N/A0.867% 5/14/2024Karpus 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% 2/15/2024Glazer Capital LLC382,709$4.11M0.4%+11.2%4.424% 2/13/2024Karpus Management Inc.602,900$6.47M0.2%-5.3%6.970% 2/13/2024Cohanzick Management LLC211,196$2.27M1.4%N/A2.442% 2/8/2024Mizuho Securities USA LLC405,632$4.32M0.1%-37.0%4.689% 2/1/2024Wolverine Asset Management LLC528,857$5.68M0.0%+53.9%6.115% 11/21/2023Shaolin Capital Management LLC150,000$1.58M0.0%-124.6%1.734% 11/15/2023Radcliffe Capital Management L.P.191,851$2.03M0.3%-7.1%2.218% 11/14/2023AQR Arbitrage LLC196,133$2.07M0.1%-20.3%2.130% 11/13/2023Wolverine Asset Management LLC343,557$3.63M0.0%+227.4%3.730% 11/9/2023Karpus 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% 11/8/2023GABELLI & Co INVESTMENT ADVISERS INC.60,785$642K0.1%-10.2%0.660% 11/6/2023Periscope Capital Inc.150,000$1.58M0.2%-41.0%1.628% 8/11/2023Karpus Management Inc.845,300$8.78M0.3%+20.2%9.178% 8/11/2023Weiss Asset Management LP210,213$2.20M0.2%-14.3%2.282% 8/10/2023GABELLI & 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% Digital Dollar Alert: Protect Your Wealth Before It’s Too Late (Ad)134 countries are developing Central Bank Digital Currencies — and the U.S. is quietly testing one. 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A free guide reveals how to protect your savings before the system goes live.Download your FREE Digital Dollar Defense Kit now8/7/2023Cowen AND Company LLC95,370$991K0.1%N/A1.036% 8/2/2023Bank of Montreal Can59,706$618K0.0%N/A0.648% 5/24/2023Mint Tower Capital Management B.V.75,000$767K0.1%N/A0.814% 5/12/2023Periscope Capital Inc.253,500$2.59M0.1%N/A2.752% 5/11/2023Karpus Management Inc.703,350$7.19M0.2%N/A7.637% 5/11/2023Kim LLC296,542$3.03M0.2%N/A3.220% 5/10/2023Weiss Asset Management LP245,184$2.51M0.2%N/A2.662% 5/10/2023Exos TFP Holdings LLC169,047$1.73M0.4%N/A1.835% 5/10/2023Mint Tower Capital Management B.V.225,000$781K0.1%N/A2.443% 5/9/2023Mint 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% 5/8/2023Wolverine 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, 19 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 ($4.49M), 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 13 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 ($671.31K), Wolverine Asset Management LLC ($429.93K), Cohanzick Management LLC ($211.20K), Cowen AND Company LLC ($207.39K), Karpus Management Inc. ($141.95K), and Berkley W R Corp ($85.81K). How much institutional buying is happening at Horizon Space Acquisition I? Institutional investors have bought a total of 439,202 shares in the last 24 months. This purchase volume represents approximately $4.96M 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 ($157.13K), Polar Asset Management Partners Inc. ($100K), Westchester Capital Management LLC ($92.40K), Spartan Fund Management Inc. ($50K), Glazer Capital LLC ($11.33K), and Crossingbridge Advisors LLC ($3.27K). How much institutional selling is happening at Horizon Space Acquisition I? Institutional investors have sold a total of 664,986 shares in the last 24 months. This volume of shares sold represents approximately $7.70M in transactions. Related Companies Spark I Acquisition Major Shareholders EVe Mobility Acquisition Major Shareholders Joint Major Shareholders Franklin Street Properties Major Shareholders Highest Performances Major Shareholders Siebert Financial Major Shareholders B. 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