Prima BioMed (IMMP) Institutional Ownership $1.63 -0.01 (-0.61%) Closing price 09/3/2025 04:00 PM EasternExtended Trading$1.68 +0.05 (+2.76%) As of 08:48 AM 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 ForecastsChartCompetitorsFDA EventsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Prima BioMed (NASDAQ:IMMP)CurrentInstitutional OwnershipPercentage2.32%Number ofInstitutional Buyers(last 12 months)7TotalInstitutional Inflows(last 12 months)$586.41KNumber ofInstitutional Sellers(last 12 months)5TotalInstitutional Outflows(last 12 months)$300.73K Get IMMP Insider Trade Alerts Want to know when executives and insiders are buying or selling Prima BioMed stock? 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Skip Chart & View Institutional Buying and Selling Data IMMP Institutional Buying and Selling by Quarter Prima BioMed Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/19/2025 Jane Street Group LLC51,574$91K0.0%+14.7%0.035% 5/12/2025 Meridian Wealth Management LLC386,650$681K0.0%-1.9%0.265% 5/12/2025 XY Capital Ltd136,744$241K0.1%-17.0%0.094% 2/17/2025 Millennium Management LLC16,367$36K0.0%-54.0%0.011% 2/14/2025 Jane Street Group LLC44,957$98K0.0%-44.1%0.031% 2/14/2025 Two Sigma Securities LLC34,025$74K0.0%N/A0.023% 2/12/2025 OLD Mission Capital LLC16,791$36K0.0%N/A0.012% 1/30/2025 ABC Arbitrage SA69,897$152K0.0%N/A0.048% 1/29/2025 XY Capital Ltd164,655$357K0.2%+52.0%0.113% 1/22/2025 Fortitude Advisory Group L.L.C.12,900$28K0.0%N/A0.009% Get the Latest News and Ratings for IMMP and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Prima BioMed and its competitors with MarketBeat's FREE daily newsletter. 11/15/2024 Jane Street Group LLC80,489$178K0.0%-35.9%0.055% 11/14/2024 Verition Fund Management LLC26,000$57K0.0%-25.7%0.018% 11/12/2024 Meridian Wealth Management LLC398,450$881K0.0%+4.5%0.274% 11/1/2024 XY Capital Ltd108,349$239K0.1%+108.3%0.074% 8/12/2024 XTX Topco Ltd12,958$26K0.0%N/A0.015% 8/5/2024 XY Capital Ltd52,005$105K0.1%N/A0.044% 5/20/2024 Virtu Financial LLC45,062$105K0.0%+269.4%0.051% 5/15/2024 Oracle Investment Management Inc.564,879$1.32M0.9%+9.4%0.642% 5/1/2024 BNP Paribas Financial Markets35,300$82K0.0%+15.4%0.040% 4/22/2024 PFG Investments LLC51,000$119K0.0%N/A0.058% 2/8/2024 Meridian Wealth Management LLC322,450$774K0.0%+3.6%0.367% 11/14/2023 Oracle Investment Management Inc.516,430$981K0.3%-42.3%0.587% 10/17/2023 Meridian Wealth Management LLC311,200$591K0.0%+18.3%0.354% 8/14/2023 Oracle Investment Management Inc.894,391$1.89M1.4%-33.8%1.017% 8/2/2023 Meridian Wealth Management LLC263,050$555K0.0%N/A0.299% 3/6/2023 OLD Mission Capital LLC21,158$37K0.0%N/A0.024% 7/29/2022 Walker Asset Management LLC62,000$153K0.0%N/A0.072% 7/25/2022 Walker Asset Management LLC62,000$153K0.0%N/A0.072% 7/13/2022Trellus Management Company LLC100,950$205K0.2%N/A0.117% 6/2/2022 Verition Fund Management LLC35,000$96K0.0%-44.1%0.040% 5/10/2022 Saturna Capital CORP85,500$234K0.0%-8.6%0.099% 2/15/2022 Coastal Bridge Advisors LLC10,000$33K0.0%N/A0.012% 2/14/2022 Bluefin Capital Management LLC25,000$82K0.0%N/A0.029% 2/4/2022 Envestnet Asset Management Inc.65,834$216K0.0%N/A0.077% 11/16/2021 Captrust Financial Advisors11,700$45K0.0%+588.2%0.014% 11/16/2021 Toroso Investments LLC23,308$90K0.0%N/A0.027% 11/16/2021 Verition Fund Management LLC144,934$561K0.0%-77.9%0.170% 11/16/2021 Millennium Management LLC1,270,059$4.92M0.0%-9.5%1.487% 11/12/2021 Renaissance Technologies LLC218,848$847K0.0%+141.0%0.256% 11/12/2021 Jump Financial LLC33,761$131K0.0%+40.1%0.040% Trump’s national nightmare is here (Ad)Porter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger the biggest forced rotation of capital since World War II. They reveal why Trump is mobilizing America’s tech giants… and name the two stocks most likely to soar as trillions shift behind the scenes.Watch the National Emergency broadcast here11/9/2021 Beirne Wealth Consulting Services LLC10,000$39K0.0%N/A0.012% 11/8/2021 Saturna Capital CORP92,500$358K0.0%+3.4%0.108% 11/5/2021Lindbrook Capital LLC10,000$39K0.0%N/A0.012% 10/19/2021 Belvedere Trading LLC34,472$143K0.0%N/A0.040% 9/17/2021 Virtu Financial LLC48,467$188K0.0%-51.1%0.057% 8/25/2021 Marshall Wace LLP165,768$642K0.0%N/A0.195% 8/17/2021 Millennium Management LLC1,403,441$5.43M0.0%+563.7%1.649% 8/17/2021 Oracle Investment Management Inc.1,000,000$3.87M0.5%N/A1.175% 8/17/2021Boxer Capital LLC2,500,000$9.68M0.3%+25.0%2.938% 8/16/2021 Morgan Stanley1,291,246$5.00M0.0%+19.8%1.517% 8/16/2021 Goldman Sachs Group Inc.36,282$140K0.0%N/A0.043% 8/16/2021 Marshall Wace LLP165,768$642K0.0%N/A0.195% 8/13/2021 Renaissance Technologies LLC90,819$351K0.0%-60.0%0.107% 8/13/2021 Jump Financial LLC24,100$93K0.0%N/A0.028% 8/13/2021 Geode Capital Management LLC12,131$46K0.0%N/A0.014% 8/11/2021 Saturna Capital CORP89,500$346K0.0%N/A0.105% 8/6/2021 HighTower Advisors LLC16,000$62K0.0%-61.9%0.021% (Data available from 1/1/2016 forward) IMMP Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of IMMP shares? During the previous two years, 14 institutional investors and hedge funds held shares of Prima BioMed. The most heavily invested institutionals were Oracle Investment Management Inc. ($1.32M), Meridian Wealth Management LLC ($681K), XY Capital Ltd ($241K), ABC Arbitrage SA ($152K), PFG Investments LLC ($119K), Virtu Financial LLC ($105K), and Jane Street Group LLC ($91K).Learn more on Prima BioMed's institutional investors. What percentage of Prima BioMed's stock is owned by institutional investors? 2.32% of Prima BioMed's stock is owned by institutional investors. Learn more on IMMP's institutional investor holdings. Which institutional investors have been buying Prima BioMed's stock? Of the 12 institutional investors that purchased Prima BioMed's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: XY Capital Ltd ($164.66K), Meridian Wealth Management LLC ($76.65K), ABC Arbitrage SA ($69.90K), PFG Investments LLC ($51K), Oracle Investment Management Inc. ($48.45K), Two Sigma Securities LLC ($34.03K), and Virtu Financial LLC ($32.86K). How much institutional buying is happening at Prima BioMed? Institutional investors have bought a total of 270,130 shares in the last 24 months. This purchase volume represents approximately $586.41K in transactions. Which of Prima BioMed's major shareholders have been selling company stock? The following institutional investors have sold Prima BioMed stock in the last 24 months: Jane Street Group LLC ($80.63K), XY Capital Ltd ($27.91K), Millennium Management LLC ($19.24K), Verition Fund Management LLC ($9K), and Meridian Wealth Management LLC ($7.50K). How much institutional selling is happening at Prima BioMed? Institutional investors have sold a total of 144,278 shares in the last 24 months. This volume of shares sold represents approximately $300.73K in transactions. Related Companies Praxis Precision Medicines Major Shareholders CorMedix Major Shareholders Cronos Group Major Shareholders Nuvation Bio Major Shareholders Verve Therapeutics Major Shareholders Valneva Major Shareholders Mineralys Therapeutics Major Shareholders atai Life Sciences Major Shareholders Iovance Biotherapeutics Major Shareholders Upstream Bio Major Shareholders This page (NASDAQ:IMMP) was last updated on 9/4/2025 by MarketBeat.com Staff From Our PartnersWhat's the Best Way to Lower RMD Taxes?Turning 73 triggers a key IRS rule: you must begin taking required minimum distributions (RMDs) from certain r...SmartAsset | SponsoredNVIDIA's Worst Nightmare?$2 TRILLION Quantum Gold Rush While everyone fights over expensive AI stocks... 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