IGM Biosciences (IGMS) Institutional Ownership $1.27 0.00 (0.00%) As of 08/14/2025 Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for IGM Biosciences (NASDAQ:IGMS)CurrentInstitutional OwnershipPercentage42.79%Number ofInstitutional Buyers(last 12 months)23TotalInstitutional Inflows(last 12 months)$12.65MNumber ofInstitutional Sellers(last 12 months)13TotalInstitutional Outflows(last 12 months)$6.18M Get IGMS Insider Trade Alerts Want to know when executives and insiders are buying or selling IGM Biosciences stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address Skip Chart & View Institutional Buying and Selling Data IGMS Institutional Buying and Selling by Quarter IGM Biosciences Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/14/2025 Jane Street Group LLC180,985$203K0.0%N/A0.300% 8/13/2025 Marshall Wace LLP44,287$50K0.0%N/A0.073% 8/12/2025 XTX Topco Ltd26,472$30K0.0%N/A0.044% 8/8/2025 Geode Capital Management LLC213,273$239K0.0%-49.9%0.355% 6/27/2025 Goldman Sachs Group Inc.793,386$912K0.0%-18.9%1.327% 5/23/2025 Siren L.L.C.3,255,826$3.74M0.2%-2.2%5.447% 5/21/2025 Acadian Asset Management LLC85,807$97K0.0%N/A0.144% 5/16/2025 Goldman Sachs Group Inc.793,386$912K0.0%-18.9%1.327% 5/16/2025 AQR Capital Management LLC238,871$275K0.0%N/A0.400% 5/15/2025 Siren L.L.C.3,255,826$3.74M0.2%-2.2%5.447% Get the Latest News and Ratings for IGMS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for IGM Biosciences and its competitors with MarketBeat's FREE daily newsletter. 5/12/2025 Nuveen LLC45,015$52K0.0%N/A0.075% 5/12/2025 Invesco Ltd.36,127$42K0.0%N/A0.060% 5/9/2025 Deutsche Bank AG46,773$54K0.0%+316.6%0.078% 5/9/2025 Charles Schwab Investment Management Inc.125,614$144K0.0%-20.4%0.210% 5/5/2025 Eagle Bay Advisors LLC99,635$115K0.1%+123.2%0.167% 2/17/2025 Two Sigma Investments LP107,620$658K0.0%+196.7%0.181% 2/17/2025 Susquehanna Portfolio Strategies LLC14,385$88K0.3%-52.4%0.024% 2/17/2025 Sanofi1,438,975$8.79M5.0%N/A2.420% 2/17/2025 Redmile Group LLC2,952,131$18.04M1.3%-3.9%4.965% 2/17/2025 Millennium Management LLC83,468$510K0.0%-45.3%0.140% 2/17/2025 D. E. Shaw & Co. Inc.10,107$62K0.0%-89.7%0.017% 2/17/2025 Cubist Systematic Strategies LLC30,148$184K0.0%N/A0.051% 2/14/2025 Susquehanna Fundamental Investments LLC36,369$222K0.0%N/A0.061% 2/14/2025 Price T Rowe Associates Inc. MD3,568,999$21.81M0.0%-11.1%6.002% 2/13/2025 Renaissance Technologies LLC75,800$463K0.0%+14.0%0.127% 2/13/2025 Rhenman & Partners Asset Management AB126,064$770K0.1%-32.0%0.212% 2/12/2025 Geode Capital Management LLC409,133$2.50M0.0%+3.4%0.688% 2/6/2025 Charles Schwab Investment Management Inc.157,843$964K0.0%+6.4%0.265% 1/24/2025China Universal Asset Management Co. Ltd.7,226$44K0.0%N/A0.012% 11/19/2024 Barclays PLC21,554$356K0.0%+48.4%0.036% 11/16/2024 Geode Capital Management LLC395,799$6.55M0.0%+7.6%0.667% 11/15/2024 Barclays PLC21,554$356K0.0%+48.4%0.036% 11/15/2024 Wellington Management Group LLP98,339$1.63M0.0%+42.6%0.166% 11/15/2024 State Street Corp469,790$7.77M0.0%+2.7%0.792% 11/15/2024 Baker BROS. Advisors LP4,092,310$67.69M0.7%+0.0%6.899% 11/14/2024 MetLife Investment Management LLC8,997$149K0.0%N/A0.015% 11/13/2024 The Manufacturers Life Insurance Company74,612$1.23M0.0%+8.2%0.126% 11/12/2024 Charles Schwab Investment Management Inc.148,402$2.46M0.0%+12.1%0.250% 11/7/2024 Quest Partners LLC1,645$27K0.0%-86.2%0.003% 11/5/2024 GSA Capital Partners LLP56,754$939K0.1%-8.4%0.096% Leaked Gov’t Memo Reveals $100 Trillion Deadline (Ad)Only Days Left to Claim Your Share of Trump's $100T Play Trump's economic blueprint is about to go live, and the deadline is fast-approaching. A new federal plan could legally unlock $100 trillion in U.S. resources... and one $10 stock could lead the charge. Former hedge fund manager Whitney Tilson explains how to act now, before this hits the headlines.Click here now to discover the full story and how to stake your claim before this land rush goes ful10/10/2024 Exchange Traded Concepts LLC10,572$175K0.0%-50.4%0.018% 8/19/2024 Point72 Asset Management L.P.27,246$187K0.0%N/A0.046% 8/15/2024 Susquehanna Fundamental Investments LLC16,028$110K0.0%-42.2%0.027% 8/15/2024 The Manufacturers Life Insurance Company68,929$474K0.0%-2.2%0.117% 8/15/2024 AQR Capital Management LLC12,230$84K0.0%N/A0.021% 8/14/2024 Marshall Wace LLP107,267$737K0.0%+51.6%0.182% 8/12/2024 XTX Topco Ltd20,408$140K0.0%+70.9%0.035% 8/9/2024 Renaissance Technologies LLC108,693$747K0.0%+126.0%0.184% 8/9/2024 Dimensional Fund Advisors LP37,034$254K0.0%-6.1%0.063% 8/9/2024 Bruce & Co. Inc.100,000$687K0.2%+53.8%0.169% 8/6/2024 Quest Partners LLC11,913$82K0.0%+71.4%0.020% 8/3/2024 TD Asset Management Inc164,472$1.13M0.0%+3.4%0.279% 8/1/2024 Rhumbline Advisers22,726$156K0.0%+13.1%0.039% 7/26/2024 Bank of New York Mellon Corp53,980$371K0.0%+8.9%0.091% 5/17/2024 Artal Group S.A.3,080,422$29.73M0.8%-0.6%5.240% 5/16/2024 Jacobs Levy Equity Management Inc.78,580$758K0.0%N/A0.134% 5/16/2024 Redmile Group LLC3,072,478$29.65M1.1%+3.4%5.226% 5/15/2024 Baker BROS. Advisors LP4,088,322$39.45M0.5%+10.8%6.954% 5/15/2024 Price T Rowe Associates Inc. MD3,888,023$37.52M0.0%+19.3%6.614% 5/14/2024 EntryPoint Capital LLC15,801$152K0.1%N/A0.027% 5/10/2024 Vanguard Group Inc.853,658$8.24M0.0%-4.8%1.452% 5/7/2024 Susquehanna Fundamental Investments LLC27,731$268K0.0%N/A0.047% 2/14/2024 Pennant Investors LP64,900$539K0.1%N/A0.111% 2/14/2024 Pale Fire Capital SE11,601$96K0.0%-7.9%0.020% 2/12/2024 Bruce & Co. Inc.65,000$540K0.2%-45.8%0.111% 2/8/2024 Panagora Asset Management Inc.30,273$252K0.0%N/A0.052% 1/25/2024 Nisa Investment Advisors LLC3,900$32K0.0%+7,258.5%0.007% 1/5/2024 Exchange Traded Concepts LLC19,048$158K0.0%+34.0%0.033% 12/7/2023 Hudson Bay Capital Management LP124,260$1.04M0.0%N/A0.213% 11/15/2023 GSA Capital Partners LLP133,276$1.11M0.1%+24.7%0.228% 11/14/2023 Pale Fire Capital SE12,601$105K0.0%N/A0.022% 11/13/2023 DekaBank Deutsche Girozentrale6,303$50K0.0%N/A0.011% 11/9/2023 Rhenman & Partners Asset Management AB750,000$6.26M0.5%+275.0%1.285% 10/27/2023 TD Asset Management Inc83,452$697K0.0%+100.0%0.143% 10/24/2023 Bank of New York Mellon Corp52,068$435K0.0%-27.9%0.089% 8/15/2023 RA Capital Management L.P.937,500$8.65M0.2%N/A1.606% 8/14/2023 Great Point Partners LLC500,000$4.62M0.9%N/A0.857% 8/14/2023 Prelude Capital Management LLC19,675$182K0.0%N/A0.034% 8/11/2023 Artal Group S.A.2,522,244$23.28M0.7%+0.5%5.855% 8/11/2023 Rhenman & Partners Asset Management AB200,000$1.85M0.2%+110.5%0.464% 8/9/2023 TD Asset Management Inc41,726$385K0.0%+120.9%0.097% 8/8/2023 Candriam S.C.A.175,008$1.62M0.0%-6.8%0.406% 8/4/2023 Maven Securities LTD24,800$229K0.0%N/A0.058% 7/20/2023 Exchange Traded Concepts LLC13,800$127K0.0%N/A0.032% 5/12/2023 Rhenman & Partners Asset Management AB95,000$1.62M0.2%+90.0%0.221% 5/11/2023 ExodusPoint Capital Management LP59,650$820K0.0%+26.7%0.138% 5/9/2023 Tower Research Capital LLC TRC6,122$84K0.0%+923.7%0.014% 4/14/2023Raymond James & Associates41,348$568K0.0%-2.7%0.096% 2/15/2023Endurant Capital Management LP30,320$516K0.2%N/A0.071% 2/15/2023 Alkeon Capital Management LLC833,241$14.17M0.1%-13.3%1.945% Is Elon's empire crumbling? (Ad)The Tesla Shock Nobody Sees Coming While headlines scream "Tesla is doomed"... Jeff Brown has uncovered a revolutionary AI breakthrough buried inside Tesla's labs. One that is helping AI escape from our computer screens and manifest itself here in the real world all while creating a 25,000% growth market explosion starting as early as October 23rd.Click here to see the Tesla shock that could blindside everyone.2/13/2023 GSA Capital Partners LLP29,861$508K0.1%+64.3%0.070% 2/13/2023 Rhenman & Partners Asset Management AB50,000$850K0.1%N/A0.117% 2/10/2023 New York Life Investment Management LLC21,167$360K0.0%+12.4%0.049% 2/10/2023 Schroder Investment Management Group26,833$456K0.0%N/A0.063% 2/9/2023 Victory Capital Management Inc.90,200$1.53M0.0%+12.1%0.211% 2/8/2023Raymond James & Associates42,516$723K0.0%+4.6%0.099% 2/8/2023 Swiss National Bank24,500$417K0.0%+7.9%0.057% 11/15/2022 Marshall Wace LLP246,689$5.61M0.0%-2.4%0.576% 11/14/2022Delphia USA Inc.10,185$232K0.3%N/A0.024% 11/14/2022 PDT Partners LLC13,126$298K0.0%-9.3%0.031% (Data available from 1/1/2016 forward) IGMS Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of IGMS shares? During the previous two years, 50 institutional investors and hedge funds held shares of IGM Biosciences. The most heavily invested institutionals were Baker BROS. Advisors LP ($67.69M), Artal Group S.A. ($29.73M), Price T Rowe Associates Inc. MD ($21.81M), Redmile Group LLC ($18.04M), Sanofi ($8.79M), Vanguard Group Inc. ($8.24M), and State Street Corp ($7.77M).Learn more on IGM Biosciences' institutional investors. What percentage of IGM Biosciences' stock is owned by institutional investors? 42.79% of IGM Biosciences' stock is owned by institutional investors. Learn more on IGMS's institutional investor holdings. Which institutional investors have been buying IGM Biosciences' stock? Of the 42 institutional investors that purchased IGM Biosciences' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Sanofi ($1.44M), Price T Rowe Associates Inc. MD ($628.00K), Rhenman & Partners Asset Management AB ($550K), Baker BROS. Advisors LP ($399.31K), AQR Capital Management LLC ($251.10K), Jane Street Group LLC ($180.99K), and Hudson Bay Capital Management LP ($124.26K). How much institutional buying is happening at IGM Biosciences? Institutional investors have bought a total of 2,480,712 shares in the last 24 months. This purchase volume represents approximately $12.65M in transactions. Which of IGM Biosciences' major shareholders have been selling company stock? Of the 13 institutional investors that sold IGM Biosciences' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Price T Rowe Associates Inc. MD ($445.26K), Goldman Sachs Group Inc. ($370.20K), Geode Capital Management LLC ($212.39K), Siren L.L.C. ($149.19K), Redmile Group LLC ($120.35K), D. E. Shaw & Co. Inc. ($87.61K), and Millennium Management LLC ($69.07K). How much institutional selling is happening at IGM Biosciences? Institutional investors have sold a total of 1,587,745 shares in the last 24 months. This volume of shares sold represents approximately $6.18M in transactions. Related Companies DSGN Major Shareholders RNAC Major Shareholders DRUG Major Shareholders NGNE Major Shareholders HUMA Major Shareholders PBYI Major Shareholders ACB Major Shareholders GLUE Major Shareholders FHTX Major Shareholders AVIR Major Shareholders This page (NASDAQ:IGMS) was last updated on 8/25/2025 by MarketBeat.com Staff From Our PartnersBONUS GUIDE - Ben Stein Prepares For the Next Financial CrisisWith inflation high, debt soaring, and global tensions rising, a financial storm may be brewing. Economist ...Goldco Precious Metals | SponsoredGENIUS Act: Cancel Your Money?A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. B...Priority Gold | SponsoredAlex’s “Next Magnificent Seven” stocksThe original “Magnificent Seven” turned $7K into $1.18 million. 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