Castor Maritime (CTRM) Institutional Ownership $2.17 +0.02 (+0.93%) Closing price 08/5/2025 03:47 PM EasternExtended Trading$2.13 -0.04 (-1.84%) As of 04:16 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 AnalysisChartCompetitorsEarningsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Castor Maritime (NASDAQ:CTRM)CurrentInstitutional OwnershipPercentage1.08%Number ofInstitutional Buyers(last 12 months)4TotalInstitutional Inflows(last 12 months)$767.63KNumber ofInstitutional Sellers(last 12 months)0 Get CTRM Insider Trade Alerts Want to know when executives and insiders are buying or selling Castor Maritime stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data CTRM Institutional Buying and Selling by Quarter Castor Maritime Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/16/2025Goldman Sachs Group Inc.26,600$61K0.0%+20.8%0.275% 2/17/2025Squarepoint Ops LLC28,373$78K0.0%+106.0%0.294% 2/5/2025Towerview LLC240,000$660K0.5%+1,820.0%2.484% 11/6/2024Towerview LLC12,500$53K0.0%N/A0.129% 8/9/2024Renaissance Technologies LLC29,469$136K0.0%+39.9%0.305% 5/20/2024Virtu Financial LLC16,381$56K0.0%-85.2%0.170% 2/14/2024 Privium Fund Management UK Ltd154,987$66K0.0%N/A0.164% 5/1/2023Virtu Financial LLC51,980$41K0.0%-42.8%0.055% 1/20/2023Veriti Management LLC26,187$29K0.0%-60.0%0.029% 11/7/2022Virtu Financial LLC36,240$41K0.0%-47.8%0.040% Get the Latest News and Ratings for CTRM and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Castor Maritime and its competitors with MarketBeat's FREE daily newsletter. 10/27/2022Veriti Management LLC65,500$73K0.0%-17.6%0.073% 8/13/2022Virtu Financial LLC69,370$93K0.0%-10.1%0.077% 7/18/2022Veriti Management LLC79,479$107K0.0%+18.9%0.088% 2/14/2022Bayesian Capital Management LP27,000$38K0.0%N/A0.030% 11/16/2021Squarepoint Ops LLC22,062$54K0.0%N/A0.025% 11/16/2021Toroso Investments LLC33,322$81K0.0%N/A0.037% 11/12/2021Renaissance Technologies LLC696,953$1.70M0.0%-59.7%0.775% 10/8/2021Veriti Management LLC66,009$161K0.0%N/A0.073% 8/25/2021Marshall Wace LLP39,773$103K0.0%-84.5%0.044% 8/17/2021Paloma Partners Management Co246,753$643K0.0%N/A0.274% 8/16/2021Cubist Systematic Strategies LLC46,750$122K0.0%+83.3%0.052% 8/16/2021Morgan Stanley1,549,890$4.04M0.0%+441.6%1.723% 8/16/2021Marshall Wace LLP39,773$103K0.0%-84.5%0.044% 8/13/2021Renaissance Technologies LLC1,731,245$4.51M0.0%-74.5%1.925% 8/13/2021LPL Financial LLC18,910$49K0.0%N/A0.021% 8/13/2021Qube Research & Technologies Ltd68,275$178K0.0%+173.2%0.076% 8/13/2021Geode Capital Management LLC49,703$129K0.0%-89.2%0.055% 8/11/2021Deutsche Bank AG201,810$526K0.0%N/A0.224% 8/2/2021Advisor Group Holdings Inc.16,050$42K0.0%+66.1%0.018% 5/19/2021Squarepoint Ops LLC155,061$118K0.0%N/A0.017% (Data available from 1/1/2016 forward) CTRM Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of CTRM shares? During the previous two years, the following institutional investors and hedge funds held shares of Castor Maritime shares: Towerview LLC ($660K), Renaissance Technologies LLC ($136K), Squarepoint Ops LLC ($78K), Privium Fund Management UK Ltd ($66K), and Goldman Sachs Group Inc. ($61K), Virtu Financial LLC ($56K).Learn more on Castor Maritime's institutional investors. What percentage of Castor Maritime's stock is owned by institutional investors? 1.08% of Castor Maritime's stock is owned by institutional investors. Learn more on CTRM's institutional investor holdings. Which institutional investors have been buying Castor Maritime's stock? The following institutional investors have purchased Castor Maritime's stock in the last 24 months: Towerview LLC ($240K), Privium Fund Management UK Ltd ($154.99K), Squarepoint Ops LLC ($14.60K), Renaissance Technologies LLC ($8.40K), and Goldman Sachs Group Inc. ($4.59K). How much institutional buying is happening at Castor Maritime? Institutional investors have bought a total of 267,588 shares in the last 24 months. This purchase volume represents approximately $767.63K in transactions. Related Companies Surf Air Mobility Institutional Ownership Air T Institutional Ownership Toro Institutional Ownership Yatra Online Institutional Ownership Mesa Air Group Institutional Ownership ModivCare Institutional Ownership Pyxis Tankers Institutional Ownership Top Ships Institutional Ownership Performance Shipping Institutional Ownership Jayud Global Logistics Institutional Ownership This page (NASDAQ:CTRM) was last updated on 8/6/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | Sponsored[Warning] Buffett Indicator hits new All-Time-HighWarren Buffett has leaned on one key indicator for decades—and it just hit an all-time high. 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