Champions Oncology (CSBR) Institutional Ownership $4.72 -0.04 (-0.84%) Closing price 10/23/2026 03:59 PM EasternExtended Trading$4.74 +0.02 (+0.44%) As of 10/23/2026 04:01 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 ForecastsChartCompetitorsEarningsFinancialsInsider TradesNews and TrendsOptions ChainOwnershipSEC Filings Institutional Ownership Changes (13F Filings) for Champions Oncology (NASDAQ:CSBR)CurrentInstitutional OwnershipPercentage41.30%Number ofInstitutional Buyers(last 12 months)4TotalInstitutional Inflows(last 12 months)$855.96KNumber ofInstitutional Sellers(last 12 months)7TotalInstitutional Outflows(last 12 months)$1.03M Get CSBR Insider Trade Alerts Want to know when executives and insiders are buying or selling Champions Oncology stock? 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Read our full terms of service and privacy policy. Skip Chart & View Institutional Buying and Selling Data CSBR Institutional Buying and Selling by Quarter Champions Oncology Major Shareholders & Ownership History ExportReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/6/2026Bank of New York Mellon Corp21,614$133K0.0%N/A0.156% 5/14/2026Renaissance Technologies LLC145,539$837K0.0%-6.0%1.048% 5/5/2026Bank of New York Mellon Corp21,614$124K0.0%-19.2%0.156% 2/18/2026Millennium Management LLC10,203$71K0.0%-19.2%0.073% 2/13/2026Mink Brook Asset Management LLC80,305$555K0.4%N/A0.578% 2/13/2026 Essex Investment Management Co. LLC18,249$126K0.0%N/A0.131% 2/12/2026Renaissance Technologies LLC154,839$1.07M0.0%-7.4%1.115% 2/5/2026Mesirow Financial Investment Management Inc.10,300$71K0.0%-14.2%0.074% 11/17/2025Susquehanna International Group LLP19,811$128K0.0%-63.0%0.144% 11/17/2025Millennium Management LLC12,635$82K0.0%-47.5%0.092% Get the Latest News and Ratings for CSBR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Champions Oncology and its competitors with MarketBeat's FREE daily newsletter. 11/17/2025Bank of America Corp DE21,777$141K0.0%-13.9%0.158% 11/13/2025Tocqueville Asset Management L.P.319,674$2.07M0.0%-20.1%2.320% 11/7/2025Vanguard Group Inc.333,258$2.16M0.0%+1.9%2.418% 8/14/2025Jane Street Group LLC17,667$130K0.0%-23.3%0.128% 8/12/2025XTX Topco Ltd14,034$103K0.0%N/A0.102% 6/27/2025Goldman Sachs Group Inc.23,129$201K0.0%N/A0.167% 5/21/2025Acadian Asset Management LLC39,511$341K0.0%+28.7%0.286% 5/19/2025Jane Street Group LLC23,020$200K0.0%N/A0.167% 5/16/2025Goldman Sachs Group Inc.23,129$201K0.0%N/A0.167% 5/15/2025OMERS ADMINISTRATION Corp10,700$93K0.0%N/A0.077% 5/13/2025Tocqueville Asset Management L.P.399,882$3.47M0.1%-34.3%2.894% 5/13/2025Informed Momentum Co LLC79,987$694K0.1%N/A0.579% 5/13/2025HighTower Advisors LLC35,158$305K0.0%-10.6%0.254% 2/14/2025Northern Trust Corp53,994$463K0.0%+31.5%0.391% 2/13/2025Renaissance Technologies LLC138,839$1.19M0.0%+15.7%1.005% 2/12/2025Geode Capital Management LLC66,511$570K0.0%+2.2%0.481% 2/11/2025Virtu Financial LLC11,051$95K0.0%N/A0.080% 2/10/2025Tocqueville Asset Management L.P.608,915$5.22M0.1%-13.7%4.406% 11/15/2024HighTower Advisors LLC39,308$191K0.0%+14.6%0.289% 4/26/2024Mesirow Financial Investment Management Inc.12,380$61K0.0%N/A0.091% 2/13/2024Aristides Capital LLC11,822$66K0.0%-45.3%0.087% 2/8/2024Essex Investment Management Co. LLC77,200$434K0.1%-26.7%0.568% 11/9/2023Essex Investment Management Co. LLC105,335$654K0.1%-5.4%0.781% 5/15/2023Overbrook Management Corp48,488$195K0.1%-10.0%0.358% 5/10/2023Tocqueville Asset Management L.P.665,428$2.68M0.1%+8.2%4.907% 2/9/2023Tocqueville Asset Management L.P.615,228$2.78M0.1%+80.1%4.537% 11/15/2022Essex Investment Management Co. LLC107,711$808K0.1%-6.4%0.797% 11/14/2022Ergoteles LLC13,937$105K0.0%N/A0.103% 10/31/2022Millrace Asset Group Inc.346,976$2.60M3.3%-2.0%2.566% CSBR Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of CSBR shares? During the previous two years, 20 institutional investors and hedge funds held shares of Champions Oncology. The most heavily invested institutionals were Vanguard Group Inc. ($2.16M), Tocqueville Asset Management L.P. ($2.07M), Renaissance Technologies LLC ($837K), Informed Momentum Co LLC ($694K), Geode Capital Management LLC ($570K), Mink Brook Asset Management LLC ($555K), and Northern Trust Corp ($463K).Learn more on Champions Oncology's institutional investors. What percentage of Champions Oncology's stock is owned by institutional investors? 41.30% of Champions Oncology's stock is owned by institutional investors. Learn more on CSBR's institutional investor holdings. Which institutional investors have been buying Champions Oncology's stock? Of the 15 institutional investors that purchased Champions Oncology's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Mink Brook Asset Management LLC ($80.31K), Informed Momentum Co LLC ($79.99K), Goldman Sachs Group Inc. ($46.26K), Jane Street Group LLC ($23.02K), Bank of New York Mellon Corp ($21.61K), Renaissance Technologies LLC ($18.85K), and Essex Investment Management Co. LLC ($18.25K). How much institutional buying is happening at Champions Oncology? Institutional investors have bought a total of 126,397 shares in the last 24 months. This purchase volume represents approximately $855.96K in transactions. Which of Champions Oncology's major shareholders have been selling company stock? The following institutional investors have sold Champions Oncology stock in the last 24 months: Tocqueville Asset Management L.P. ($80.21K), Susquehanna International Group LLP ($33.72K), Renaissance Technologies LLC ($21.72K), Millennium Management LLC ($13.86K), Bank of New York Mellon Corp ($5.14K), Bank of America Corp DE ($3.50K), and Mesirow Financial Investment Management Inc. ($1.70K). How much institutional selling is happening at Champions Oncology? Institutional investors have sold a total of 159,848 shares in the last 24 months. This volume of shares sold represents approximately $1.03M in transactions. 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