Actinium Pharmaceuticals (ATNM) Institutional Ownership $1.65 +0.05 (+3.13%) Closing price 08/14/2025 04:00 PM EasternExtended Trading$1.64 -0.01 (-0.61%) As of 08/14/2025 07:49 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 ForecastsChartCompetitorsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Actinium Pharmaceuticals (NYSE:ATNM)CurrentInstitutional OwnershipPercentage27.50%Number ofInstitutional Buyers(last 12 months)29TotalInstitutional Inflows(last 12 months)$3.32MNumber ofInstitutional Sellers(last 12 months)9TotalInstitutional Outflows(last 12 months)$1.04M Get ATNM Insider Trade Alerts Want to know when executives and insiders are buying or selling Actinium Pharmaceuticals stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data ATNM Institutional Buying and Selling by Quarter Actinium Pharmaceuticals Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/14/2025Jane Street Group LLC218,324$306K0.0%N/A0.700% 8/14/2025Qube Research & Technologies Ltd49,932$70K0.0%N/A0.160% 8/13/2025 Marshall Wace LLP98,123$137K0.0%N/A0.315% 8/12/2025 North Star Asset Management Inc.20,000$28K0.0%+100.0%0.064% 8/8/2025 Geode Capital Management LLC329,689$462K0.0%-53.7%1.057% 8/1/2025 Y Intercept Hong Kong Ltd64,909$91K0.0%N/A0.208% 6/27/2025Goldman Sachs Group Inc.76,811$124K0.0%-43.2%0.246% 5/16/2025Goldman Sachs Group Inc.76,811$124K0.0%-43.2%0.246% 5/16/2025AQR Capital Management LLC63,249$102K0.0%+278.6%0.203% 5/13/2025 Callan Family Office LLC23,603$38K0.0%N/A0.076% Get the Latest News and Ratings for ATNM and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Actinium Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 5/12/2025 Nuveen LLC148,560$239K0.0%N/A0.476% 5/12/2025 Invesco Ltd.153,555$247K0.0%+1,135.9%0.492% 5/9/2025 Gagnon Securities LLC226,622$365K0.1%N/A0.726% 5/9/2025 Charles Schwab Investment Management Inc.97,604$157K0.0%+35.4%0.313% 5/7/2025 AM Investment Strategies LLC30,872$50K0.0%+114.1%0.099% 4/23/2025 Creative Financial Designs Inc. ADV105,631$170K0.0%+16.1%0.339% 2/17/2025Squarepoint Ops LLC183,262$231K0.0%+25.4%0.587% 2/17/2025Nuveen Asset Management LLC148,560$187K0.0%+49.5%0.476% 2/17/2025Millennium Management LLC117,454$148K0.0%-26.6%0.376% 2/17/2025 Deutsche Bank AG123,134$155K0.0%+413.6%0.395% 2/17/2025Bank of America Corp DE78,767$99K0.0%+76.6%0.252% 2/14/2025 Northern Trust Corp251,930$317K0.0%+4.9%0.807% 2/14/2025 Dimensional Fund Advisors LP34,923$44K0.0%-31.9%0.112% 2/13/2025 XTX Topco Ltd25,606$32K0.0%-82.0%0.082% 2/13/2025 Renaissance Technologies LLC190,400$240K0.0%+49.9%0.610% 2/12/2025 JPMorgan Chase & Co.123,831$156K0.0%+804.5%0.397% 2/11/2025Sei Investments Co.49,214$62K0.0%N/A0.158% 2/10/2025 Creative Financial Designs Inc. ADV91,007$115K0.0%+42.7%0.292% 2/4/2025 Los Angeles Capital Management LLC213,950$270K0.0%+25.0%0.686% 1/30/2025 Vontobel Holding Ltd.25,000$32K0.0%N/A0.080% 11/20/2024 Virtu Financial LLC13,748$26K0.0%-34.4%0.044% 11/19/2024 Barclays PLC42,935$81K0.0%+323.0%0.138% 11/16/2024 Geode Capital Management LLC686,153$1.29M0.0%+3.0%2.199% 11/15/2024 Barclays PLC42,935$81K0.0%+323.0%0.138% 11/15/2024 XTX Topco Ltd142,493$268K0.0%N/A0.457% 11/15/2024Jane Street Group LLC40,837$77K0.0%-37.4%0.131% 11/15/2024Wellington Management Group LLP59,608$112K0.0%N/A0.191% 11/15/2024State Street Corp602,649$1.13M0.0%-1.2%1.932% 11/12/2024 Charles Schwab Investment Management Inc.72,093$136K0.0%-13.7%0.231% 11/4/2024 Los Angeles Capital Management LLC171,180$322K0.0%N/A0.575% Musk’s Project Colossus could mint millionaires (Ad)I predict this single breakthrough could make Elon the world’s first trillionaire — and mint more new millionaires than any tech advance in history. And for a limited time, you have the chance to claim a stake in this project, even though it’s housed inside Elon’s private company, xAI.All the details are waiting for you now — but you need to act before the September 1st funding windo10/28/2024 Interchange Capital Partners LLC19,646$37K0.0%N/A0.066% 10/28/2024 Creative Financial Designs Inc. ADV63,785$120K0.0%+183.0%0.214% 8/15/2024The Manufacturers Life Insurance Company12,488$92K0.0%N/A0.042% 8/14/2024Squarepoint Ops LLC48,096$356K0.0%N/A0.161% 8/14/2024 Marshall Wace LLP256,026$1.90M0.0%+67.9%0.860% 8/9/2024 Renaissance Technologies LLC19,200$142K0.0%N/A0.064% 8/9/2024 Dimensional Fund Advisors LP111,869$828K0.0%-22.6%0.376% 8/1/2024 Rhumbline Advisers39,656$293K0.0%+23.4%0.133% 7/26/2024 Bank of New York Mellon Corp86,401$639K0.0%+28.3%0.290% 5/20/2024 Virtu Financial LLC82,029$642K0.0%+319.2%0.275% 5/10/2024 Vanguard Group Inc.1,446,326$11.33M0.0%+6.0%4.857% 4/11/2024 Sanders Morris Harris LLC10,000$78K0.0%N/A0.034% 2/13/2024 Intrepid Financial Planning Group LLC16,000$81K0.0%-11.1%0.058% 1/10/2024 Creative Financial Designs Inc. ADV19,800$101K0.0%+19.1%0.072% 11/13/2023 Brandywine Global Investment Management LLC174,500$1.03M0.0%N/A0.637% 9/21/2023 Barclays PLC5,185$39K0.0%-90.7%0.019% 8/11/2023 ExodusPoint Capital Management LP57,934$430K0.0%-3.9%0.225% 8/4/2023 American International Group Inc.12,520$93K0.0%N/A0.049% 7/26/2023 Creative Financial Designs Inc. ADV16,475$122K0.0%+9.8%0.064% 7/10/2023 Quent Capital LLC5,000$37K0.0%N/A0.019% 5/23/2023 Royce & Associates LP50,000$472K0.0%N/A0.194% 5/11/2023 ExodusPoint Capital Management LP60,277$570K0.0%+30.1%0.234% 5/4/2023 Barclays PLC55,662$526K0.0%N/A0.216% 5/4/2023 Royce & Associates LP50,000$473K0.0%N/A0.194% 5/3/2023 Jump Financial LLC13,092$124K0.0%-44.8%0.051% 5/1/2023 Virtu Financial LLC21,650$205K0.0%-19.4%0.084% 4/25/2023 Creative Financial Designs Inc. ADV15,000$142K0.0%N/A0.058% 2/15/2023Endurant Capital Management LP45,612$486K0.2%N/A0.179% 2/14/2023683 Capital Management LLC16,629$177K0.0%N/A0.065% 2/10/2023 Blair William & Co. IL89,400$952K0.0%-14.0%0.351% 2/9/2023 Citigroup Inc.49,152$523K0.0%+544.3%0.193% 11/16/2022Sentinus LLC22,500$166K0.1%N/A0.089% 11/14/2022Delphia USA Inc.14,226$105K0.1%-19.5%0.056% 11/7/2022 Virtu Financial LLC12,590$93K0.0%-64.8%0.050% 11/7/2022 Jump Financial LLC23,400$173K0.0%N/A0.093% 11/2/2022 Rockefeller Capital Management L.P.14,331$105K0.0%+11.3%0.057% 8/16/2022 Corton Capital Inc.16,285$78K0.1%N/A0.068% 8/16/2022Delphia USA Inc.17,669$85K0.1%N/A0.074% 8/13/2022 Virtu Financial LLC35,789$172K0.0%+154.0%0.150% 5/11/2022ACT Capital Management LLC6,500$33K0.0%-82.7%0.029% 2/14/2022 Blair William & Co. IL86,866$522K0.0%+5.5%0.394% 2/14/2022 GSA Capital Partners LLP56,673$341K0.0%-16.9%0.257% 11/16/2021ACT Capital L.L.C.37,500$332K0.2%N/A0.170% 11/15/2021 Marshall Wace LLP22,469$199K0.0%N/A0.102% 11/15/2021 Wealthspire Advisors LLC14,348$127K0.0%N/A0.065% 11/15/2021 GSA Capital Partners LLP68,205$604K0.1%+44.8%0.310% 11/15/2021 Interchange Capital Partners LLC16,420$145K0.2%+43.8%0.075% 11/12/2021 Rockefeller Capital Management L.P.8,381$74K0.0%+21.8%0.038% 11/12/2021 Geode Capital Management LLC167,172$1.48M0.0%+9.5%0.759% 11/12/2021 Bank Julius Baer & Co. Ltd Zurich8,833$78K0.0%+132.9%0.040% Musk’s Project Colossus could mint millionaires (Ad)I predict this single breakthrough could make Elon the world’s first trillionaire — and mint more new millionaires than any tech advance in history. And for a limited time, you have the chance to claim a stake in this project, even though it’s housed inside Elon’s private company, xAI.All the details are waiting for you now — but you need to act before the September 1st funding windo11/9/2021BlackRock Inc.219,243$1.94M0.0%-1.5%0.995% 8/17/2021Bridgeway Capital Management LLC99,166$784K0.0%+17.5%0.465% 8/16/2021 First Trust Advisors LP51,273$406K0.0%+43.5%0.240% 8/16/2021Morgan Stanley21,489$170K0.0%+368.3%0.101% 8/16/2021State Street Corp55,292$437K0.0%N/A0.259% 8/13/2021 Northern Trust Corp38,052$301K0.0%+40.4%0.178% 8/13/2021 Geode Capital Management LLC152,678$1.21M0.0%+53.0%0.716% 8/13/2021 Vanguard Group Inc.819,642$6.48M0.0%+43.2%3.842% 8/12/2021 Blair William & Co. IL51,466$407K0.0%+48.0%0.241% 8/5/2021 GSA Capital Partners LLP47,097$373K0.0%+20.7%0.221% (Data available from 1/1/2016 forward) ATNM Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of ATNM shares? During the previous two years, 40 institutional investors and hedge funds held shares of Actinium Pharmaceuticals. The most heavily invested institutionals were Vanguard Group Inc. ($11.33M), State Street Corp ($1.13M), Brandywine Global Investment Management LLC ($1.03M), Bank of New York Mellon Corp ($639K), Geode Capital Management LLC ($462K), Gagnon Securities LLC ($365K), and Northern Trust Corp ($317K).Learn more on Actinium Pharmaceuticals' institutional investors. What percentage of Actinium Pharmaceuticals' stock is owned by institutional investors? 27.50% of Actinium Pharmaceuticals' stock is owned by institutional investors. Learn more on ATNM's institutional investor holdings. Which institutional investors have been buying Actinium Pharmaceuticals' stock? Of the 35 institutional investors that purchased Actinium Pharmaceuticals' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Gagnon Securities LLC ($226.62K), Jane Street Group LLC ($218.32K), Los Angeles Capital Management LLC ($213.95K), Marshall Wace LLP ($201.68K), Brandywine Global Investment Management LLC ($174.50K), Nuveen LLC ($148.56K), and XTX Topco Ltd ($142.49K). How much institutional buying is happening at Actinium Pharmaceuticals? Institutional investors have bought a total of 2,153,187 shares in the last 24 months. This purchase volume represents approximately $3.32M in transactions. Which of Actinium Pharmaceuticals' major shareholders have been selling company stock? Of the 9 institutional investors that sold Actinium Pharmaceuticals' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Geode Capital Management LLC ($382.11K), Goldman Sachs Group Inc. ($116.97K), XTX Topco Ltd ($116.89K), Millennium Management LLC ($42.67K), Jane Street Group LLC ($24.39K), Dimensional Fund Advisors LP ($16.36K), and Charles Schwab Investment Management Inc. ($11.48K). How much institutional selling is happening at Actinium Pharmaceuticals? Institutional investors have sold a total of 725,121 shares in the last 24 months. This volume of shares sold represents approximately $1.04M in transactions. 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