Aytu BioPharma (AYTU) Institutional Ownership $2.18 -0.11 (-4.80%) Closing price 07/11/2025 04:00 PM EasternExtended Trading$2.22 +0.04 (+1.83%) As of 07/11/2025 05:24 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 ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Aytu BioPharma (NASDAQ:AYTU)CurrentInstitutional OwnershipPercentage33.49%Number ofInstitutional Buyers(last 12 months)3TotalInstitutional Inflows(last 12 months)$894.46KNumber ofInstitutional Sellers(last 12 months)2TotalInstitutional Outflows(last 12 months)$269.68K Get AYTU Insider Trade Alerts Want to know when executives and insiders are buying or selling Aytu BioPharma stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data AYTU Institutional Buying and Selling by Quarter Aytu BioPharma Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/15/2025Armistice Capital LLC57,597$69K0.0%-61.6%0.934% 5/14/2025Stonepine Capital Management LLC463,721$556K0.5%+13.8%7.516% 2/17/2025Stonepine Capital Management LLC407,549$693K0.6%-18.6%6.627% 11/14/2024Stonepine Capital Management LLC500,958$1.18M0.7%+6.0%8.147% 8/15/2024Armistice Capital LLC252,000$736K0.0%N/A4.220% 8/9/2024Dimensional Fund Advisors LP23,551$69K0.0%+54.5%0.394% 8/16/2023Stonepine Capital Management LLC472,369$756K0.3%N/A12.497% 8/11/2023Stonepine Capital Management LLC472,369$756K0.3%N/A12.497% 2/7/2023Commonwealth Equity Services LLC309,558$58K0.0%+47.7%9.922% 11/4/2022Prudential Financial Inc.145,550$27K0.0%+257.2%0.233% Get the Latest News and Ratings for AYTU and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Aytu BioPharma and its competitors with MarketBeat's FREE daily newsletter. 11/16/2021Schonfeld Strategic Advisors LLC20,200$58K0.0%-22.8%0.073% 11/12/2021Renaissance Technologies LLC660,604$1.90M0.0%+38.4%2.398% 11/10/2021Creative Planning13,000$37K0.0%N/A0.047% 11/9/2021BlackRock Inc.498,952$1.44M0.0%+3.2%1.811% 10/29/2021Commonwealth Equity Services LLC107,718$310K0.0%+86.4%0.391% 9/17/2021Virtu Financial LLC101,805$510K0.0%N/A0.404% 8/17/2021Millennium Management LLC440,415$2.21M0.0%N/A1.750% 8/16/2021Squarepoint Ops LLC34,487$173K0.0%N/A0.137% 8/16/2021Pinz Capital Management LP21,400$107K0.0%+18.9%0.085% 8/16/2021State Street Corp97,684$489K0.0%-44.9%0.388% 8/16/2021Tibra Equities Europe Ltd60,100$301K0.1%N/A0.239% 8/13/2021Renaissance Technologies LLC477,369$2.39M0.0%+265.7%1.897% 8/13/2021Northern Trust Corp47,061$236K0.0%-77.9%0.187% 8/13/2021Geode Capital Management LLC221,439$1.11M0.0%-38.8%0.880% 8/13/2021Vanguard Group Inc.983,387$4.93M0.0%-5.6%3.907% 8/12/2021Ergoteles LLC75,472$378K0.0%N/A0.300% 8/11/2021Commonwealth Equity Services LLC57,798$289K0.0%+24.0%0.230% 8/11/2021Bank of New York Mellon Corp15,919$80K0.0%-66.0%0.063% 8/11/2021BlackRock Inc.483,448$2.42M0.0%-69.6%1.921% 8/11/2021Deutsche Bank AG20,800$104K0.0%+50.9%0.083% 8/11/2021Susquehanna Fundamental Investments LLC54,819$275K0.0%+33.7%0.218% 8/10/2021WINTON GROUP Ltd57,229$287K0.0%+22.7%0.227% 5/24/2021Principal Financial Group Inc.42,551$323K0.0%+8.2%0.238% 5/21/2021Citadel Advisors LLC24,761$188K0.0%-70.4%0.138% 5/18/2021Citadel Advisors LLC24,761$188K0.0%-70.4%0.138% 5/18/2021California State Teachers Retirement System33,011$251K0.0%+857.1%0.185% 5/17/2021Schonfeld Strategic Advisors LLC27,100$206K0.0%N/A0.152% 5/17/2021Nuveen Asset Management LLC276,148$2.10M0.0%N/A1.544% 5/17/2021Goldman Sachs Group Inc.77,958$592K0.0%N/A0.436% 5/13/2021Renaissance Technologies LLC130,521$992K0.0%N/A0.730% Forget Nvidia, This “Ghost Town” Company Holds the Key to the AI Boom (Ad)Cold War Discovery Could Unlock $100 Trillion in Wealth Jeff recently traveled to an American ghost town to investigate this crazy Cold War story… Because it could hold the key to the entire $100 trillion AI boom. It involves an American ghost town with just 30 people… And a new twist to the AI boom that could make a lot of people rich. Click here to see the details on what could be the biggest tech story of this decade.5/13/2021Bank of New York Mellon Corp46,833$356K0.0%+215.2%0.262% 5/12/2021Northern Trust Corp213,140$1.62M0.0%+335.4%1.192% 5/12/2021Geode Capital Management LLC361,588$2.75M0.0%+249.8%2.022% 5/12/2021JPMorgan Chase & Co.55,385$421K0.0%+634.8%0.310% (Data available from 1/1/2016 forward) AYTU Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of AYTU shares? During the previous two years, the following institutional investors and hedge funds held shares of Aytu BioPharma shares: Stonepine Capital Management LLC ($556K), and Armistice Capital LLC ($69K), Dimensional Fund Advisors LP ($69K).Learn more on Aytu BioPharma's institutional investors. What percentage of Aytu BioPharma's stock is owned by institutional investors? 33.49% of Aytu BioPharma's stock is owned by institutional investors. Learn more on AYTU's institutional investor holdings. Which institutional investors have been buying Aytu BioPharma's stock? The following institutional investors have purchased Aytu BioPharma's stock in the last 24 months: Stonepine Capital Management LLC ($1.03M), Armistice Capital LLC ($252K), and Dimensional Fund Advisors LP ($8.31K). How much institutional buying is happening at Aytu BioPharma? Institutional investors have bought a total of 344,972 shares in the last 24 months. This purchase volume represents approximately $894.46K in transactions. Which of Aytu BioPharma's major shareholders have been selling company stock? The following institutional investors have sold Aytu BioPharma stock in the last 24 months: Stonepine Capital Management LLC ($93.41K), and Armistice Capital LLC ($92.40K). How much institutional selling is happening at Aytu BioPharma? Institutional investors have sold a total of 185,812 shares in the last 24 months. This volume of shares sold represents approximately $269.68K in transactions. Related Companies TScan Therapeutics Major Shareholders Cabaletta Bio Major Shareholders IGM Biosciences Major Shareholders Pliant Therapeutics Major Shareholders Zura Bio Major Shareholders ESSA Pharma Major Shareholders Quince Therapeutics Major Shareholders Surrozen Major Shareholders InterCure Major Shareholders Immix Biopharma Major Shareholders This page (NASDAQ:AYTU) was last updated on 7/13/2025 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 | SponsoredPresidential Bombshell: $150T Resource to Be Released as soon as this Summer?Something extraordinary is happening in Washington. 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