Castellum (CTM) Institutional Ownership $1.17 -0.03 (-2.50%) Closing price 06/13/2025 04:10 PM EasternExtended Trading$1.12 -0.04 (-3.85%) As of 06/13/2025 07:59 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 AnalysisAnalyst ForecastsChartEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestBuy This Stock Institutional Ownership Changes (13F Filings) for Castellum (NYSEAMERICAN:CTM)CurrentInstitutional OwnershipPercentage3.39%Number ofInstitutional Buyers(last 12 months)7TotalInstitutional Inflows(last 12 months)$4.00MNumber ofInstitutional Sellers(last 12 months)3TotalInstitutional Outflows(last 12 months)$696.09K Get CTM Insider Trade Alerts Want to know when executives and insiders are buying or selling Castellum stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data CTM Institutional Buying and Selling by Quarter Castellum Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/15/2025 Cubist Systematic Strategies LLC67,680$72K0.0%N/A0.097% 5/8/2025 XTX Topco Ltd65,419$69K0.0%N/A0.094% 4/29/2025 Bank of New York Mellon Corp600,002$636K0.0%-51.1%0.858% 4/17/2025 Inscription Capital LLC250,000$265K0.0%N/A0.357% 2/14/2025 Jane Street Group LLC449,001$898K0.0%+2,180.2%0.642% 2/12/2025 Geode Capital Management LLC299,643$599K0.0%+49.9%0.428% 2/12/2025 PKS Advisory Services LLC42,221$84K0.0%N/A0.060% 2/6/2025 Meridian Wealth Management LLC589,400$1.18M0.1%-2.5%0.843% 2/4/2025 Bank of New York Mellon Corp1,227,824$2.46M0.0%N/A1.756% 8/15/2024 Armistice Capital LLC3,547,987$660K0.0%-23.8%6.691% 5/20/2024 Virtu Financial LLC103,288$27K0.0%+82.2%0.195% 2/8/2024 Meridian Wealth Management LLC503,500$150K0.0%+123.8%1.056% 1/18/2024 Inscription Capital LLC250,000$74K0.0%N/A0.524% 10/17/2023 Meridian Wealth Management LLC225,000$52K0.0%+44.2%0.473% 8/2/2023 Meridian Wealth Management LLC156,000$78K0.0%-16.7%0.369% 7/19/2023 Magnus Financial Group LLC250,000$125K0.0%N/A0.592% 2/9/2023 Almanack Investment Partners LLC.50,000$63K0.0%N/A2.404% 2/1/2023 Kestra Private Wealth Services LLC74,804$94K0.0%N/A3.596% 1/31/2023 Kestra Advisory Services LLC73,519$93K0.0%N/A3.535% (Data available from 1/1/2016 forward) CTM Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of CTM shares? During the previous two years, 11 institutional investors and hedge funds held shares of Castellum. The most heavily invested institutionals were Meridian Wealth Management LLC ($1.18M), Jane Street Group LLC ($898K), Armistice Capital LLC ($660K), Bank of New York Mellon Corp ($636K), Geode Capital Management LLC ($599K), Inscription Capital LLC ($265K), and Magnus Financial Group LLC ($125K).Learn more on CTM's institutional investors. What percentage of Castellum stock is owned by institutional investors? 3.39% of Castellum stock is owned by institutional investors. Learn more on CTM's institutional investor holdings. Which institutional investors have been buying Castellum stock? Of the 10 institutional investors that purchased Castellum stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Bank of New York Mellon Corp ($1.23M), Inscription Capital LLC ($500K), Jane Street Group LLC ($429.31K), Meridian Wealth Management LLC ($347.50K), Magnus Financial Group LLC ($250K), Geode Capital Management LLC ($99.71K), and Cubist Systematic Strategies LLC ($67.68K). How much institutional buying is happening at Castellum? Institutional investors have bought a total of 3,076,274 shares in the last 24 months. This purchase volume represents approximately $4.13M in transactions. Which Castellum major shareholders have been selling company stock? The following institutional investors have sold Castellum stock in the last 24 months: Armistice Capital LLC ($1.11M), Bank of New York Mellon Corp ($627.82K), and Meridian Wealth Management LLC ($46.60K). How much institutional selling is happening at Castellum? Institutional investors have sold a total of 1,782,422 shares in the last 24 months. This volume of shares sold represents approximately $711.74K in transactions. Related Companies Zhihu Institutional Ownership International Money Express Institutional Ownership Sohu.com Institutional Ownership trivago Institutional Ownership Rimini Street Institutional Ownership OptimizeRx Institutional Ownership Paysign Institutional Ownership 8X8 Institutional Ownership CPI Card Group Institutional Ownership MaxCyte Institutional Ownership This page (NYSEAMERICAN:CTM) was last updated on 6/15/2025 by MarketBeat.com Staff From Our PartnersTrump wipes out trillions overnight…Is there anybody more powerful than Donald Trump right now? In a single tariff announcement, he wiped out n...Porter & Company | SponsoredAn AI run of epic proportions is only getting startedI just put together an urgent new presentation that you need to see right away. 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