Aytu BioPharma (AYTU) Institutional Ownership $2.20 +0.02 (+0.92%) Closing price 08/22/2025 04:00 PM EasternExtended Trading$2.19 -0.01 (-0.45%) As of 08/22/2025 07:46 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)4TotalInstitutional Inflows(last 12 months)$3.57MNumber 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 CompanyDetails8/15/2025 AWM Investment Company Inc.619,874$1.35M0.2%N/A6.903% 8/13/2025 Stonepine Capital Management LLC812,676$1.77M1.7%+75.3%9.053% 7/30/2025 FNY Investment Advisers LLC35,921$78K0.0%N/A0.400% 7/15/2025 Kanen Wealth Management LLC573,358$1.25M0.5%N/A6.385% 5/15/2025 Armistice Capital LLC57,597$69K0.0%-61.6%0.934% 5/14/2025 Stonepine Capital Management LLC463,721$556K0.5%+13.8%7.516% 2/17/2025 Stonepine Capital Management LLC407,549$693K0.6%-18.6%6.627% 11/14/2024 Stonepine Capital Management LLC500,958$1.18M0.7%+6.0%8.147% 8/15/2024 Armistice Capital LLC252,000$736K0.0%N/A4.220% 8/9/2024 Dimensional Fund Advisors LP23,551$69K0.0%+54.5%0.394% 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. 8/16/2023 Stonepine Capital Management LLC472,369$756K0.3%N/A12.497% 8/11/2023 Stonepine Capital Management LLC472,369$756K0.3%N/A12.497% 2/7/2023 Commonwealth Equity Services LLC309,558$58K0.0%+47.7%9.922% 11/4/2022 Prudential Financial Inc.145,550$27K0.0%+257.2%0.233% 11/16/2021 Schonfeld Strategic Advisors LLC20,200$58K0.0%-22.8%0.073% 11/12/2021 Renaissance Technologies LLC660,604$1.90M0.0%+38.4%2.398% 11/10/2021 Creative Planning13,000$37K0.0%N/A0.047% 11/9/2021BlackRock Inc.498,952$1.44M0.0%+3.2%1.811% 10/29/2021 Commonwealth Equity Services LLC107,718$310K0.0%+86.4%0.391% 9/17/2021 Virtu Financial LLC101,805$510K0.0%N/A0.404% 8/17/2021 Millennium Management LLC440,415$2.21M0.0%N/A1.750% 8/16/2021 Squarepoint Ops LLC34,487$173K0.0%N/A0.137% 8/16/2021Pinz Capital Management LP21,400$107K0.0%+18.9%0.085% 8/16/2021 State Street Corp97,684$489K0.0%-44.9%0.388% 8/16/2021Tibra Equities Europe Ltd60,100$301K0.1%N/A0.239% 8/13/2021 Renaissance Technologies LLC477,369$2.39M0.0%+265.7%1.897% 8/13/2021 Northern Trust Corp47,061$236K0.0%-77.9%0.187% 8/13/2021 Geode Capital Management LLC221,439$1.11M0.0%-38.8%0.880% 8/13/2021 Vanguard Group Inc.983,387$4.93M0.0%-5.6%3.907% 8/12/2021Ergoteles LLC75,472$378K0.0%N/A0.300% 8/11/2021 Commonwealth Equity Services LLC57,798$289K0.0%+24.0%0.230% 8/11/2021 Bank 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% 8/11/2021 Deutsche Bank AG20,800$104K0.0%+50.9%0.083% 8/11/2021 Susquehanna Fundamental Investments LLC54,819$275K0.0%+33.7%0.218% 8/10/2021 WINTON GROUP Ltd57,229$287K0.0%+22.7%0.227% (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 ($1.77M), AWM Investment Company Inc. ($1.35M), Kanen Wealth Management LLC ($1.25M), FNY Investment Advisers LLC ($78K), 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: AWM Investment Company Inc. ($619.87K), Kanen Wealth Management LLC ($573.36K), Stonepine Capital Management LLC ($433.62K), Armistice Capital LLC ($252K), FNY Investment Advisers LLC ($35.92K), and Dimensional Fund Advisors LP ($8.31K). How much institutional buying is happening at Aytu BioPharma? Institutional investors have bought a total of 1,662,769 shares in the last 24 months. This purchase volume represents approximately $3.57M 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. 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