Horizon Space Acquisition I (HSPO) Institutional Ownership $11.78 -0.14 (-1.17%) Closing price 04:02 AM EasternExtended Trading$11.78 0.00 (0.00%) As of 04:02 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 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)6TotalInstitutional Inflows(last 12 months)$5.94MNumber 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 CompanyDetails5/12/2025 Mizuho Securities USA LLC375,210$4.39M0.1%-6.1%9.000% 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% 2/11/2025 Mizuho 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% 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% 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. 11/13/2024 Crossingbridge Advisors LLC153,522$1.72M1.3%-2.1%1.961% 11/12/2024 Mizuho 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% 5/10/2024 Mizuho 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% 2/8/2024 Mizuho 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% 11/9/2023 Mizuho 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% 8/10/2023 GABELLI & Co INVESTMENT ADVISERS INC.67,700$703K0.1%N/A0.735% 8/9/2023 Mizuho Securities USA LLC300,749$3.07M0.1%+21.8%3.265% Musk’s Project Colossus could mint millionaires (Ad)I predict this single breakthrough could make Elon the world’s first trillionaire — and mint more new millionaires than any tech advance in history. And for a limited time, you have the chance to claim a stake in this project, even though it’s housed inside Elon’s private company, xAI.All the details are waiting for you now — but you need to act before the May 1st funding window clos8/7/2023Cowen 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, 20 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 HSPO's institutional investors. What percentage of Horizon Space Acquisition I stock is owned by institutional investors? 69.10% of Horizon Space Acquisition I stock is owned by institutional investors. Learn more on HSPO's institutional investor holdings. Which institutional investors have been buying Horizon Space Acquisition I stock? Of the 14 institutional investors that purchased Horizon Space Acquisition I 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 2,981,338 shares in the last 24 months. This purchase volume represents approximately $31.84M in transactions. Which Horizon Space Acquisition I major shareholders have been selling company stock? Of the 14 institutional investors that sold Horizon Space Acquisition I stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Mizuho Securities USA LLC ($586.47K), Karpus Management Inc. ($262.47K), Wolverine Asset Management LLC ($157.13K), Berkley W R Corp ($119.32K), Periscope Capital Inc. ($104.21K), Polar Asset Management Partners Inc. ($100K), and Westchester Capital Management LLC ($92.40K). How much institutional selling is happening at Horizon Space Acquisition I? Institutional investors have sold a total of 1,593,214 shares in the last 24 months. This volume of shares sold represents approximately $17.61M in transactions. Related Companies Black Spade Acquisition II Major Shareholders Forge Global Major Shareholders Plum Acquisition Corp, IV Major Shareholders Spark I Acquisition Major Shareholders EVe Mobility Acquisition Major Shareholders SK Growth Opportunities Major Shareholders Hennessy Capital Investment Corp. VI Major Shareholders Triller Group Major Shareholders Siebert Financial Major Shareholders Mountain & Co. I Acquisition Corp. Major Shareholders This page (NASDAQ:HSPO) was last updated on 5/23/2025 by MarketBeat.com Staff From Our PartnersWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... A single announcement by July 22nd could soon b...Altimetry | SponsoredJuly 2025 Rule Change to Impact Retirement InvestorsThere's a massive change from a new rule going into effect this July. And it's one the Big Banks are alread...Premier Gold Co | SponsoredThis Signal Only Flashes Once Every 4 Years – And It Just TriggeredThis same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in cryp...Crypto Swap Profits | SponsoredA grave, grave error.I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. Because here we...Porter & Company | SponsoredWhy Elon put $51 million into thisWhy Elon Musk Just Invested $51 Million Into Brand New “Miracle Metal” Developed by MIT ScientistsTrue Market Insiders | Sponsored3..2..1.. AI 2.0 ignition (don’t sleep on this)I just put together an urgent new presentation that you need to see right away. In short: I believe we are...Timothy Sykes | SponsoredTrump’s Exec Order #14154 could be a “Millionaire-Maker”Former Presidential Advisor, Jim Rickards, says Trump could “rewire our economy and hand millions of Americans...Paradigm Press | SponsoredGold Alert: The Truth About Fort Knox Is ComingOwning physical gold isn’t the best way to profit. I’ve found a better way to invest in gold—one that’s alr...Golden Portfolio | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Horizon Space Acquisition I Corp. Please log in to your account or sign up in order to add this asset to your watchlist. Share Horizon Space Acquisition I With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.