Opthea (OPT) Institutional Ownership $3.41 +0.23 (+7.23%) As of 07/1/2025 Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsFinancialsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Opthea (NASDAQ:OPT)CurrentInstitutional OwnershipPercentage55.95%Number ofInstitutional Buyers(last 12 months)8TotalInstitutional Inflows(last 12 months)$8.81MNumber ofInstitutional Sellers(last 12 months)4TotalInstitutional Outflows(last 12 months)$473.62K Get OPT Insider Trade Alerts Want to know when executives and insiders are buying or selling Opthea 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 OPT Institutional Buying and Selling by Quarter Opthea Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/23/2025Twin Lakes Capital Management LLC33,156$113K0.1%+67.4%0.022% 5/15/2025EP Wealth Advisors LLC10,000$34K0.0%N/A0.006% 5/15/2025Baker BROS. Advisors LP2,087,320$7.12M0.1%-4.0%1.356% 5/15/2025OLD Mission Capital LLC19,167$65K0.0%+78.7%0.012% 5/14/2025Hsbc Holdings PLC105,939$356K0.0%-25.7%0.069% 5/13/2025Regal Partners Ltd5,193,688$17.71M1.8%+78.6%3.374% 2/17/2025Millennium Management LLC61,101$241K0.0%-9.3%0.045% 2/17/2025Citadel Advisors LLC19,998$79K0.0%N/A0.015% 2/14/2025Hsbc Holdings PLC142,515$556K0.0%N/A0.104% 2/12/2025OLD Mission Capital LLC10,728$42K0.0%N/A0.008% Get the Latest News and Ratings for OPT and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Opthea and its competitors with MarketBeat's FREE daily newsletter. 1/30/2025ABC Arbitrage SA10,216$40K0.0%N/A0.007% 11/18/2024Twin Lakes Capital Management LLC19,806$81K0.0%N/A0.034% 11/15/2024Jane Street Group LLC26,632$114K0.0%N/A0.046% 8/5/2024Victory Capital Management Inc.840,040$1.61M0.0%-1.8%1.439% 5/15/2024Baker BROS. Advisors LP2,177,826$8.95M0.1%-15.9%3.729% 11/15/2023Regal Partners Ltd2,895,987$5.05M1.1%-0.6%4.959% 11/6/2023Victory Capital Management Inc.884,335$1.50M0.0%-8.0%1.514% 7/27/2023Victory Capital Management Inc.961,485$2.69M0.0%-14.7%1.646% 5/2/2023Victory Capital Management Inc.1,127,566$4.47M0.0%-4.3%1.931% 3/10/2023Victory Capital Management Inc.1,177,995$6.60M0.0%-28.3%2.017% 2/9/2023Victory Capital Management Inc.1,177,995$6.60M0.0%-28.3%2.018% 11/2/2022Victory Capital Management Inc.1,643,585$10.17M0.0%+2.5%2.829% 9/9/2022Regal Partners Ltd2,883,790$18.17M3.1%N/A5.697% 8/15/2022Laurion Capital Management LP22,660$143K0.0%-9.4%0.051% 8/1/2022Victory Capital Management Inc.1,604,227$10.11M0.0%+0.5%3.644% 5/4/2022Victory Capital Management Inc.1,596,207$9.82M0.0%+1.4%3.629% 2/7/2022Victory Capital Management Inc.1,574,694$11.81M0.0%+6.7%3.580% 11/2/2021Victory Capital Management Inc.1,475,893$11.82M0.0%+3.0%3.364% 8/17/2021Millennium Management LLC194,334$1.54M0.0%-6.0%0.443% 8/3/2021Victory Capital Management Inc.1,433,254$11.38M0.0%+1.8%3.266% 5/18/2021Millennium Management LLC206,737$2.00M0.0%-5.7%0.476% (Data available from 1/1/2016 forward) OPT Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of OPT shares? During the previous two years, 11 institutional investors and hedge funds held shares of Opthea. The most heavily invested institutionals were Regal Partners Ltd ($17.71M), Baker BROS. Advisors LP ($7.12M), Victory Capital Management Inc. ($1.61M), Hsbc Holdings PLC ($356K), Millennium Management LLC ($241K), Jane Street Group LLC ($114K), and Twin Lakes Capital Management LLC ($113K).Learn more on Opthea's institutional investors. What percentage of Opthea's stock is owned by institutional investors? 55.95% of Opthea's stock is owned by institutional investors. Learn more on OPT's institutional investor holdings. Which institutional investors have been buying Opthea's stock? The following institutional investors have purchased Opthea's stock in the last 24 months: Regal Partners Ltd ($2.29M), Hsbc Holdings PLC ($142.52K), Twin Lakes Capital Management LLC ($33.16K), Jane Street Group LLC ($26.63K), Citadel Advisors LLC ($20.00K), OLD Mission Capital LLC ($19.17K), and ABC Arbitrage SA ($10.22K). How much institutional buying is happening at Opthea? Institutional investors have bought a total of 2,547,969 shares in the last 24 months. This purchase volume represents approximately $8.81M in transactions. Which of Opthea's major shareholders have been selling company stock? The following institutional investors have sold Opthea stock in the last 24 months: Baker BROS. Advisors LP ($86.30K), Hsbc Holdings PLC ($36.58K), Victory Capital Management Inc. ($15.48K), and Millennium Management LLC ($6.29K). How much institutional selling is happening at Opthea? Institutional investors have sold a total of 144,653 shares in the last 24 months. This volume of shares sold represents approximately $473.62K in transactions. Related Companies NAMS Major Shareholders DNLI Major Shareholders KNSA Major Shareholders RXRX Major Shareholders APGE Major Shareholders CGON Major Shareholders AGIO Major Shareholders INDV Major Shareholders IRON Major Shareholders BLTE Major Shareholders This page (NASDAQ:OPT) was last updated on 7/3/2025 by MarketBeat.com Staff From Our PartnersHere's the last trade you should make before heading out for the weekend tomorrow.Make this one trade at 2:59 PM on Friday afternoon, and you'll thank me on Monday morning.Timothy Sykes | 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 | SponsoredTrump’s New Order Could Boost Social Security Benefits by 400%If you collect—or plan to collect—Social Security, you need to see this. 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Oxford Economics says, "The Robotics Rev...Weiss Ratings | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Opthea Limited Unsponsored ADR Please log in to your account or sign up in order to add this asset to your watchlist. Share Opthea 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. 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