Power Solutions International (PSIX) Institutional Ownership $24.51 +0.13 (+0.53%) As of 04/17/2025 04:00 PM Eastern Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOwnershipSEC FilingsTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Power Solutions International (NASDAQ:PSIX)CurrentInstitutional OwnershipPercentage22.28%Number ofInstitutional Buyers(last 12 months)19TotalInstitutional Inflows(last 12 months)$67.19MNumber ofInstitutional Sellers(last 12 months)0 Get PSIX Insider Trade Alerts Want to know when executives and insiders are buying or selling Power Solutions International 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 PSIX Institutional Buying and Selling by Quarter Power Solutions International Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails4/17/2025 Ritholtz Wealth Management39,855$1.01M0.0%N/A0.173% 2/25/2025Heck Capital Advisors LLC3,150$94K0.0%N/A0.014% 2/17/2025Citadel Advisors LLC12,312$366K0.0%N/A0.054% 2/14/2025Manatuck Hill Partners LLC20,850$620K0.3%N/A0.091% 2/14/2025Schonfeld Strategic Advisors LLC15,300$455K0.0%N/A0.067% 2/13/2025S Squared Technology LLC293,034$8.72M3.6%N/A1.274% 2/13/2025Marshall Wace LLP71,588$2.13M0.0%N/A0.311% 2/13/2025Portolan Capital Management LLC341,287$10.15M0.7%N/A1.484% 2/13/2025Wells Fargo & Company MN1,100$33K0.0%N/A0.005% 2/12/2025Thoroughbred Financial Services LLC10,433$310K0.0%N/A0.045% 2/12/2025Perritt Capital Management Inc15,000$446K0.2%N/A0.065% 2/12/2025O Shaughnessy Asset Management LLC72,868$2.17M0.0%N/A0.317% 2/4/2025World Equity Group Inc.17,794$529K0.1%N/A0.077% 2/3/2025Thompson Davis & CO. Inc.8,450$251K0.2%N/A0.037% 1/24/2025Spire Wealth Management3,243$96K0.0%N/A0.014% 1/24/2025Gagnon Advisors LLC470,165$13.99M9.0%N/A2.044% 1/24/2025Gagnon Securities LLC850,146$25.29M5.1%N/A3.696% 1/23/2025Heck Capital Advisors LLC3,150$94K0.0%N/A0.014% 1/23/2025Evernest Financial Advisors LLC7,500$223K0.1%N/A0.033% 1/15/2025Astoria Portfolio Advisors LLC.7,277$216K0.1%N/A0.032% (Data available from 1/1/2016 forward) PSIX Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of PSIX shares? During the previous two years, 19 institutional investors and hedge funds held shares of Power Solutions International. The most heavily invested institutionals were Gagnon Securities LLC ($25.29M), Gagnon Advisors LLC ($13.99M), Portolan Capital Management LLC ($10.15M), S Squared Technology LLC ($8.72M), O Shaughnessy Asset Management LLC ($2.17M), Marshall Wace LLP ($2.13M), and Ritholtz Wealth Management ($1.01M).Learn more on PSIX's institutional investors. What percentage of Power Solutions International stock is owned by institutional investors? 22.28% of Power Solutions International stock is owned by institutional investors. Learn more on PSIX's institutional investor holdings. Which institutional investors have been buying Power Solutions International stock? Of the 19 institutional investors that purchased Power Solutions International stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Gagnon Securities LLC ($850.15K), Gagnon Advisors LLC ($470.17K), Portolan Capital Management LLC ($341.29K), S Squared Technology LLC ($293.03K), O Shaughnessy Asset Management LLC ($72.87K), Marshall Wace LLP ($71.59K), and Ritholtz Wealth Management ($39.86K). How much institutional buying is happening at Power Solutions International? Institutional investors have bought a total of 2,264,502 shares in the last 24 months. This purchase volume represents approximately $67.19M in transactions. Related Companies EPAC Major Shareholders DNOW Major Shareholders HSAI Major Shareholders AZTA Major Shareholders ACMR Major Shareholders SEI Major Shareholders INVX Major Shareholders CRCT Major Shareholders KRNT Major Shareholders EFXT Major Shareholders This page (NASDAQ:PSIX) was last updated on 4/19/2025 by MarketBeat.com Staff From Our PartnersElon Set to Shock the World by May 1st ?Tech legend Jeff Brown recently traveled to the industrial zone of South Memphis to investigate what he believ...Brownstone Research | Sponsored[Action Required] Claim Your FREE IRS Loophole GuideThis shouldn't surprise anyone who's been paying attention, but... Pres. 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