IO Biotech (IOBT) Institutional Ownership $0.05 0.00 (0.00%) As of 04/7/2026 Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartEarningsFDA EventsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for IO Biotech (NASDAQ:IOBT)CurrentInstitutional OwnershipPercentage54.76%Number ofInstitutional Buyers(last 12 months)5TotalInstitutional Inflows(last 12 months)$1.12MNumber ofInstitutional Sellers(last 12 months)8TotalInstitutional Outflows(last 12 months)$2.20M Get IOBT Insider Trade Alerts Want to know when executives and insiders are buying or selling IO Biotech stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. 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Skip Chart & View Institutional Buying and Selling Data IOBT Institutional Buying and Selling by Quarter IO Biotech Major Shareholders & Ownership History ExportReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails2/18/2026 Beacon Pointe Advisors LLC506,000$308K0.0%N/A0.703% 2/18/2026 Ikarian Capital LLC1,386,565$844K0.1%-9.1%1.927% 2/18/2026 Millennium Management LLC138,716$84K0.0%-90.0%0.193% 2/18/2026 Boothbay Fund Management LLC451,852$275K0.0%-23.6%0.628% 2/13/2026 Marshall Wace LLP429,338$262K0.0%-59.2%0.597% 2/12/2026 Renaissance Technologies LLC207,601$126K0.0%-62.1%0.289% 11/17/2025 Novo Holdings A S2,512,453$912K0.1%-25.1%3.814% 11/17/2025 Millennium Management LLC1,392,396$506K0.0%N/A2.114% 11/17/2025 Bank of America Corp DE799,953$290K0.0%-50.5%1.214% 11/17/2025 Boothbay Fund Management LLC591,180$215K0.0%N/A0.897% Get the Latest News and Ratings for IOBT and Related StocksEnter your email address below to receive the latest news and analysts' ratings for IO Biotech and its competitors with MarketBeat's FREE daily newsletter. 8/19/2025 Marex Group plc45,000$63K0.0%N/A0.000% 8/15/2025 Bank of America Corp DE1,615,074$2.25M0.0%-2.2%0.000% 8/14/2025 NewEdge Advisors LLC24,217$34K0.0%N/A0.037% 8/12/2025 XTX Topco Ltd29,189$41K0.0%-42.2%0.000% 5/21/2025Acadian Asset Management LLC30,858$33K0.0%-49.1%0.047% 5/19/2025Jane Street Group LLC23,717$26K0.0%N/A0.036% 5/15/2025Landscape Capital Management L.L.C.400,234$436K0.0%-9.5%0.608% 5/8/2025XTX Topco Ltd50,486$55K0.0%+80.0%0.077% 5/7/2025Dauntless Investment Group LLC681,446$743K0.9%-8.9%1.034% 2/17/2025Bridgeway Capital Management LLC174,000$160K0.0%-12.8%0.264% 2/17/2025Citadel Advisors LLC270,504$249K0.0%N/A0.411% 2/14/2025Dauntless Investment Group LLC747,646$688K0.7%N/A1.135% 2/13/2025XTX Topco Ltd28,040$26K0.0%N/A0.043% 2/13/2025Renaissance Technologies LLC118,800$109K0.0%+22.5%0.180% 2/12/2025Landscape Capital Management L.L.C.442,196$407K0.0%N/A0.671% 1/30/2025Vontobel Holding Ltd.32,667$30K0.0%N/A0.050% 10/24/2024Novo Holdings A S3,354,449$3.52M0.2%-24.3%5.092% 8/20/2024Novo Holdings A S4,429,449$5.18M0.3%-12.9%6.723% 8/15/2024Armistice Capital LLC1,545,000$1.81M0.0%-10.4%2.345% 8/12/2024XTX Topco Ltd26,555$31K0.0%+67.4%0.040% 8/9/2024Renaissance Technologies LLC180,800$212K0.0%+8.1%0.274% 2/15/2024PFM Health Sciences LP2,341,107$4.40M0.3%+73.0%3.554% 2/13/2024Stonepine Capital Management LLC1,666,037$3.13M1.4%-15.7%2.529% 2/13/2024Armistice Capital LLC1,924,000$3.62M0.0%-10.4%2.920% 11/15/2023Armistice Capital LLC2,148,000$3.03M0.0%N/A3.260% 11/14/2023Stonepine Capital Management LLC1,975,308$2.79M0.9%N/A2.998% 11/14/2023Pivotal bioVenture Partners Investment Advisor LLC864,197$1.22M0.5%N/A1.312% 11/8/2023Vivo Capital LLC6,173,439$8.71M1.1%+104.7%9.371% 7/25/2023Summit Trail Advisors LLC43,744$86K0.0%N/A0.152% 2/14/2023RA Capital Management L.P.1,127,260$2.59M0.1%-39.3%3.911% The chokepoint supplier behind SpaceX's $1.75 trillion empire (Ad)When Musk laughed and said 'you need transformers to run transformers,' it wasn't a joke - it was a confession. The world's largest supercomputer requires power equipment that takes 120 weeks to build, and Musk built Colossus in just 122 days. One small American company is positioned to close that gap faster than anyone else, yet Wall Street still prices it like an afterthought. Dylan Jovine has the full story and the ticker.See the stock Musk's own words pointed to right here11/14/2022Psagot Value Holdings Ltd. Israel40,846$111K0.0%N/A0.142% 11/2/2022Victory Capital Management Inc.43,741$119K0.0%N/A0.152% 2/15/2022Samsara BioCapital LLC1,120,437$7.17M1.4%N/A3.888% 2/15/2022Capital World Investors1,235,000$8.11M0.0%N/A4.286% 2/14/2022Soleus Capital Management L.P.672,734$4.31M0.4%N/A2.335% 2/14/2022Novo Holdings A S3,277,932$20.98M1.0%N/A11.376% IOBT Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of IOBT shares? During the previous two years, 19 institutional investors and hedge funds held shares of IO Biotech. The most heavily invested institutionals were Armistice Capital LLC ($1.81M), Novo Holdings A S ($912K), Ikarian Capital LLC ($844K), Dauntless Investment Group LLC ($743K), Landscape Capital Management L.L.C. ($436K), Beacon Pointe Advisors LLC ($308K), and Bank of America Corp DE ($290K).Learn more on IO Biotech's institutional investors. What percentage of IO Biotech's stock is owned by institutional investors? 54.76% of IO Biotech's stock is owned by institutional investors. Learn more on IOBT's institutional investor holdings. Which institutional investors have been buying IO Biotech's stock? Of the 12 institutional investors that purchased IO Biotech's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Millennium Management LLC ($1.39M), Dauntless Investment Group LLC ($747.65K), Boothbay Fund Management LLC ($591.18K), Beacon Pointe Advisors LLC ($506K), Landscape Capital Management L.L.C. ($442.20K), Citadel Advisors LLC ($270.50K), and XTX Topco Ltd ($61.17K). How much institutional buying is happening at IO Biotech? Institutional investors have bought a total of 2,558,793 shares in the last 24 months. This purchase volume represents approximately $1.12M in transactions. Which of IO Biotech's major shareholders have been selling company stock? The following institutional investors have sold IO Biotech stock in the last 24 months: Millennium Management LLC ($1.25M), Bank of America Corp DE ($851.56K), Novo Holdings A S ($842.00K), Marshall Wace LLP ($623.29K), Renaissance Technologies LLC ($339.71K), Boothbay Fund Management LLC ($139.33K), and Ikarian Capital LLC ($139.33K). How much institutional selling is happening at IO Biotech? Institutional investors have sold a total of 4,210,198 shares in the last 24 months. This volume of shares sold represents approximately $2.20M in transactions. 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