Phio Pharmaceuticals (PHIO) Institutional Ownership $1.98 -0.05 (-2.46%) Closing price 04:00 PM EasternExtended Trading$2.00 +0.02 (+1.06%) As of 07:49 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 ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Phio Pharmaceuticals (NASDAQ:PHIO)CurrentInstitutional OwnershipPercentage57.31%Number ofInstitutional Buyers(last 12 months)2TotalInstitutional Inflows(last 12 months)$111.49KNumber ofInstitutional Sellers(last 12 months)1TotalInstitutional Outflows(last 12 months)$14.10K Get PHIO Insider Trade Alerts Want to know when executives and insiders are buying or selling Phio Pharmaceuticals stock? 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Skip Chart & View Institutional Buying and Selling Data PHIO Institutional Buying and Selling by Quarter Phio Pharmaceuticals Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/8/2025 Cetera Investment Advisers32,500$76K0.0%-15.6%0.677% 8/8/2025 Geode Capital Management LLC57,694$136K0.0%+38.7%1.202% 2/11/2025 Virtu Financial LLC40,910$74K0.0%N/A0.594% 8/14/2023 Anson Funds Management LP22,571$65K0.0%N/A1.505% 8/10/2023 Cetera Investment Advisers10,666$31K0.0%N/A0.711% 8/2/2023 Bank of Montreal Can10,000$38K0.0%N/A0.667% 8/11/2022 Cetera Investment Advisers75,000$53K0.0%-16.7%0.549% 11/16/2021 Cetera Investment Advisers30,000$61K0.0%N/A0.222% 11/9/2021BlackRock Inc.35,592$72K0.0%-17.8%0.263% 9/17/2021 Virtu Financial LLC27,110$61K0.0%+74.7%0.200% 8/13/2021 Vanguard Group Inc.276,561$625K0.0%+125.4%2.043% 8/12/2021 Dimensional Fund Advisors LP23,960$54K0.0%-31.2%0.177% (Data available from 1/1/2016 forward) PHIO Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of PHIO shares? During the previous two years, the following institutional investors and hedge funds held shares of Phio Pharmaceuticals shares: Geode Capital Management LLC ($136K), and Cetera Investment Advisers ($76K), Virtu Financial LLC ($74K).Learn more on Phio Pharmaceuticals' institutional investors. What percentage of Phio Pharmaceuticals' stock is owned by institutional investors? 57.31% of Phio Pharmaceuticals' stock is owned by institutional investors. Learn more on PHIO's institutional investor holdings. Which institutional investors have been buying Phio Pharmaceuticals' stock? The following institutional investors have purchased Phio Pharmaceuticals' stock in the last 24 months: Virtu Financial LLC ($40.91K), and Geode Capital Management LLC ($16.11K). How much institutional buying is happening at Phio Pharmaceuticals? Institutional investors have bought a total of 57,018 shares in the last 24 months. This purchase volume represents approximately $111.49K in transactions. Which of Phio Pharmaceuticals' major shareholders have been selling company stock? The following institutional investors have sold Phio Pharmaceuticals stock in the last 24 months: Cetera Investment Advisers ($6K). How much institutional selling is happening at Phio Pharmaceuticals? Institutional investors have sold a total of 6,000 shares in the last 24 months. This volume of shares sold represents approximately $14.10K in transactions. Related Companies JSPR Institutional Ownership KLRS Institutional Ownership TELO Institutional Ownership IPSC Institutional Ownership ANVS Institutional Ownership STTK Institutional Ownership KLTO Institutional Ownership FGEN Institutional Ownership GRCE Institutional Ownership RANI Institutional Ownership This page (NASDAQ:PHIO) was last updated on 8/28/2025 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 | SponsoredEveryone’s watching Nvidia right now. Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | SponsoredBuffett, Gates and Bezos Quietly Dumping Stocks—Here's WhyImagine a bull market so powerful, every single investor became a millionaire. 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