Tenax Therapeutics (TENX) Institutional Ownership $12.13 -0.23 (-1.86%) Closing price 05/22/2026 04:00 PM EasternExtended Trading$12.12 -0.02 (-0.12%) As of 05/22/2026 04:10 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 Massive. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Tenax Therapeutics (NASDAQ:TENX)CurrentInstitutional OwnershipPercentage1.67%Number ofInstitutional Buyers(last 12 months)25TotalInstitutional Inflows(last 12 months)$55.31MNumber ofInstitutional Sellers(last 12 months)2TotalInstitutional Outflows(last 12 months)$914.21K Get TENX Insider Trade Alerts Want to know when executives and insiders are buying or selling Tenax Therapeutics stock? 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Skip Chart & View Institutional Buying and Selling Data TENX Institutional Buying and Selling by Quarter Tenax Therapeutics Major Shareholders & Ownership History ExportReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/19/2026 Bank of America Corp DE18,569$297K0.0%+391.2%0.108% 5/19/2026 Stempoint Capital LP188,700$3.02M0.6%N/A1.097% 5/19/2026 Janus Henderson Group PLC1,815,474$29.07M0.0%+989.3%10.555% 5/18/2026 ADAR1 Capital Management LLC213,462$3.41M0.2%+235.2%1.241% 5/16/2026 The Manufacturers Life Insurance Company 31,336$501K0.0%N/A0.182% 5/14/2026 Renaissance Technologies LLC152,600$2.44M0.0%+21.5%0.887% 5/7/2026 Dimensional Fund Advisors LP62,786$1.00M0.0%N/A0.365% 3/9/2026 Corient Private Wealth LLC12,388$151K0.0%N/A0.199% 2/19/2026 Corient Private Wealth LLC12,388$151K0.0%N/A0.199% 2/18/2026 Sphera Funds Management LTD.190,111$2.32M0.4%N/A3.047% Get the Latest News and Ratings for TENX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Tenax Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 2/18/2026 Quadrature Capital Ltd20,648$252K0.0%N/A0.331% 2/18/2026 Perceptive Advisors LLC439,142$5.35M0.1%N/A7.038% 2/18/2026 Millennium Management LLC302,473$3.69M0.0%-3.6%4.847% 2/18/2026 Artia Global Partners LP42,080$513K0.1%N/A0.674% 2/18/2026 Bridgeway Capital Management LLC44,900$547K0.0%N/A0.720% 2/17/2026 ADAR1 Capital Management LLC63,673$776K0.1%+19.2%1.020% 2/17/2026 Diadema Partners LP243,170$2.96M0.5%N/A3.897% 2/17/2026 Persistent Asset Partners Ltd65,272$796K0.4%N/A1.046% 2/13/2026 Marshall Wace LLP298,153$3.63M0.0%+68.2%4.778% 2/13/2026 Siren L.L.C.427,141$5.21M0.2%+21.2%6.845% 2/12/2026 Renaissance Technologies LLC125,579$1.53M0.0%+121.9%2.012% 2/11/2026 Letko Brosseau & Associates Inc.10,650$130K0.0%N/A0.171% 2/10/2026 Goldman Sachs Group Inc.22,409$273K0.0%N/A0.359% 2/9/2026 Geode Capital Management LLC55,699$679K0.0%+61.8%0.893% 11/17/2025 Woodline Partners LP88,211$671K0.0%N/A1.933% 11/17/2025 Millennium Management LLC313,712$2.39M0.0%+34.2%6.875% 11/17/2025 Citadel Advisors LLC43,253$329K0.0%+318.1%0.948% 11/17/2025 Boothbay Fund Management LLC352,206$2.68M0.0%N/A7.719% 11/14/2025 Virtu Financial LLC12,119$92K0.0%N/A0.266% 11/14/2025 ADAR1 Capital Management LLC53,428$407K0.0%-65.7%1.171% 5/16/2025ADAR1 Capital Management LLC68,741$450K0.1%+98.1%1.657% 2/17/2025Vestal Point Capital LP55,189$342K0.0%-33.8%1.618% 2/17/2025Two Sigma Investments LP13,521$84K0.0%N/A0.397% 2/17/2025Millennium Management LLC26,809$166K0.0%N/A0.786% 2/17/2025Janus Henderson Group PLC166,666$1.03M0.0%N/A4.888% 2/13/2025ADAR1 Capital Management LLC34,693$215K0.0%-44.4%1.017% 2/12/2025Geode Capital Management LLC24,354$151K0.0%+32.4%0.714% 11/15/2024Sphera Funds Management LTD.29,166$101K0.0%N/A0.855% 11/14/2024Vestal Point Capital LP83,333$288K0.0%N/A2.444% 11/14/2024Stonepine Capital Management LLC50,000$173K0.1%N/A1.466% ALERT: Drop these 5 stocks before the market opens tomorrow! (Ad)The Wall Street Journal is already raising the alarm about a potential market crash, and Weiss Ratings research points to the first half of 2026 as a particularly rough stretch for certain holdings. Some of America's most popular stocks could take serious damage as a radical market shift plays out. Analysts at Weiss Ratings have identified five names you may want to remove from your portfolio before this unfolds. If any of these are in your portfolio, now is the time to review your positions.See the 5 stocks to avoid5/1/2023Virtu Financial LLC84,361$39K0.0%N/A0.377% 11/14/2022Armistice Capital LLC1,965,885$334K0.0%+23.1%7.799% TENX Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of TENX shares? During the previous two years, 28 institutional investors and hedge funds held shares of Tenax Therapeutics. The most heavily invested institutionals were Janus Henderson Group PLC ($29.07M), Perceptive Advisors LLC ($5.35M), Siren L.L.C. ($5.21M), Millennium Management LLC ($3.69M), Marshall Wace LLP ($3.63M), ADAR1 Capital Management LLC ($3.41M), and Stempoint Capital LP ($3.02M).Learn more on Tenax Therapeutics' institutional investors. What percentage of Tenax Therapeutics' stock is owned by institutional investors? 1.67% of Tenax Therapeutics' stock is owned by institutional investors. Learn more on TENX's institutional investor holdings. Which institutional investors have been buying Tenax Therapeutics' stock? Of the 28 institutional investors that purchased Tenax Therapeutics' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Janus Henderson Group PLC ($1.82M), Perceptive Advisors LLC ($439.14K), Boothbay Fund Management LLC ($352.21K), Diadema Partners LP ($243.17K), Sphera Funds Management LTD. ($219.28K), ADAR1 Capital Management LLC ($194.08K), and Stempoint Capital LP ($188.70K). How much institutional buying is happening at Tenax Therapeutics? Institutional investors have bought a total of 4,087,971 shares in the last 24 months. This purchase volume represents approximately $55.31M in transactions. Which of Tenax Therapeutics' major shareholders have been selling company stock? The following institutional investors have sold Tenax Therapeutics stock in the last 24 months: ADAR1 Capital Management LLC ($102.13K), and Millennium Management LLC ($11.24K). How much institutional selling is happening at Tenax Therapeutics? Institutional investors have sold a total of 113,368 shares in the last 24 months. This volume of shares sold represents approximately $914.21K in transactions. Related Companies Eton Pharmaceuticals Major Shareholders Amphastar Pharmaceuticals Major Shareholders BioAge Labs Major Shareholders Esperion Therapeutics Major Shareholders Alto Neuroscience Major Shareholders Relmada Therapeutics Major Shareholders Solid Biosciences Major Shareholders Aerovate Therapeutics Major Shareholders Aclaris Therapeutics Major Shareholders Gyre Therapeutics Major Shareholders This page (NASDAQ:TENX) was last updated on 5/23/2026 by MarketBeat.com Staff. 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