This company has been marked as potentially delisted and may not be actively trading. Aileron Therapeutics (ALRN) Institutional Ownership Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsEarningsHeadlinesInsider TradesOwnershipShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Aileron Therapeutics (NASDAQ:ALRN)CurrentInstitutional OwnershipPercentage90.89%Number ofInstitutional Buyers(last 12 months)6TotalInstitutional Inflows(last 12 months)$11.08MNumber ofInstitutional Sellers(last 12 months)1TotalInstitutional Outflows(last 12 months)$55.95K Get ALRN Insider Trade Alerts Want to know when executives and insiders are buying or selling Aileron Therapeutics 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 ALRN Institutional Buying and Selling by Quarter Aileron Therapeutics Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails11/16/2024 Geode Capital Management LLC229,817$814K0.0%+34.8%1.061% 11/4/2024 Sigma Planning Corp212,410$752K0.0%+68.3%0.980% 10/29/2024 KG&L Capital Management LLC13,000$46K0.0%N/A0.060% 9/17/2024 University of Texas Texas AM Investment Management Co.1,777,827$4.93M1.0%N/A8.225% 8/20/2024 Nantahala Capital Management LLC464,367$1.29M0.1%+82.1%2.148% 8/9/2024 Renaissance Technologies LLC24,864$69K0.0%-44.8%0.115% 8/9/2024 Warberg Asset Management LLC31,354$86K0.0%N/A0.145% 8/2/2024 University of Texas Texas AM Investment Management Co.1,777,827$4.93M1.9%N/A8.225% 5/13/2024 Texas Capital Bank Wealth Management Services Inc26,171$174K0.0%+65.9%0.155% 2/8/2024 Texas Capital Bank Wealth Management Services Inc15,773$48K0.0%N/A0.323% Get the Latest News and Ratings for ALRN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Aileron Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 2/1/2024 Sigma Planning Corp16,580$51K0.0%N/A0.339% 2/15/2023Alerce Investment Management L.P.830,466$1.97M2.3%-95.0%18.288% 2/10/2023 Blair William & Co. IL67,867$161K0.0%-94.5%1.495% 1/31/2023KCK LTD.22,341$53K0.1%-95.0%0.492% 10/31/2022KCK LTD.446,817$101K0.2%-30.9%0.492% 4/25/2022 Bailard Inc.128,010$66K0.0%N/A0.141% 2/14/2022 Blair William & Co. IL1,067,489$601K0.0%+32.9%1.179% 2/11/2022KCK LTD.646,817$362K0.3%N/A0.714% 2/10/2022 Acadian Asset Management LLC85,274$47K0.0%N/A0.094% 2/4/2022 Envestnet Asset Management Inc.136,760$77K0.0%+152.4%0.151% 2/2/2022PVG Asset Management Corp50,300$28K0.1%+113.5%0.056% 1/27/2022Morgan Jess S & Co. Inc.100,000$56K0.0%+33.3%0.110% 11/16/2021 Keebeck Wealth Management LLC76,000$78K0.0%-51.2%0.084% 11/12/2021 Renaissance Technologies LLC734,721$749K0.0%-28.7%0.811% 11/9/2021Morgan Jess S & Co. Inc.75,000$76K0.1%N/A0.083% 11/9/2021 Barclays PLC25,279$26K0.0%+235.4%0.028% 11/9/2021 JFS Wealth Advisors LLC31,807$32K0.0%N/A0.035% 10/26/2021 Game Plan Financial Advisors LLC127,000$130K0.1%+27.0%0.140% 8/17/2021 Boothbay Fund Management LLC393,015$491K0.0%+11.8%0.434% 8/16/2021 State Street Corp71,200$89K0.0%N/A0.079% 8/13/2021 Renaissance Technologies LLC1,031,128$1.29M0.0%-17.5%1.142% 8/13/2021 Geode Capital Management LLC766,813$958K0.0%+34.1%0.849% 8/13/2021 Vanguard Group Inc.3,440,633$4.30M0.0%-5.9%3.809% 8/12/2021 Blair William & Co. IL688,044$860K0.0%+99.1%0.762% 8/4/2021 Envestnet Asset Management Inc.34,654$43K0.0%+45.1%0.038% 5/21/2021 Citadel Advisors LLC46,830$67K0.0%N/A0.052% 5/19/2021 Virtu Financial LLC146,341$209K0.0%+746.6%0.162% 5/18/2021 BVF Inc. IL5,265,555$7.53M0.3%N/A5.829% 5/18/2021 Citadel Advisors LLC46,830$67K0.0%N/A0.052% 5/17/2021 Ikarian Capital LLC2,800,000$4.00M0.1%N/A3.100% Elon just did WHAT!? (Ad)As you may recall, Biden and the Fed were working on a central bank digital currency, or CBDC. Had they gotten away with it, the Fed and U.S. banks could have seized control of our financial lives forever. But Trump stopped them cold on January 23rd, 2025, when he outlawed CBDCs… Paving the way for Elon Musk's secret master plan.Click here to see how to claim your stake before they launch to avoid missing out.5/13/2021 Renaissance Technologies LLC1,250,500$1.79M0.0%+97.1%1.385% 5/13/2021 Blair William & Co. IL345,594$494K0.0%+29.0%0.383% 5/12/2021 Northern Trust Corp127,883$183K0.0%+378.0%0.142% 5/12/2021 Geode Capital Management LLC571,738$817K0.0%+149.3%0.633% 5/12/2021Satter Management CO. L.P.16,609,449$23.75M10.5%+118.3%18.394% 5/11/2021 Acadian Asset Management LLC134,419$192K0.0%+30.8%0.149% 5/4/2021 Envestnet Asset Management Inc.23,886$34K0.0%+105.2%0.026% (Data available from 1/1/2016 forward) ALRN Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of ALRN shares? During the previous two years, the following institutional investors and hedge funds held shares of Aileron Therapeutics shares: University of Texas Texas AM Investment Management Co. ($4.93M), Nantahala Capital Management LLC ($1.29M), Geode Capital Management LLC ($814K), Sigma Planning Corp ($752K), Texas Capital Bank Wealth Management Services Inc ($174K), Warberg Asset Management LLC ($86K), and Renaissance Technologies LLC ($69K).Learn more on ALRN's institutional investors. What percentage of Aileron Therapeutics stock is owned by institutional investors? 90.89% of Aileron Therapeutics stock is owned by institutional investors. Learn more on ALRN's institutional investor holdings. Which institutional investors have been buying Aileron Therapeutics stock? The following institutional investors have purchased Aileron Therapeutics stock in the last 24 months: University of Texas Texas AM Investment Management Co. ($3.56M), Nantahala Capital Management LLC ($209.37K), Sigma Planning Corp ($102.77K), Geode Capital Management LLC ($59.37K), Warberg Asset Management LLC ($31.35K), Texas Capital Bank Wealth Management Services Inc ($26.17K), and KG&L Capital Management LLC ($13K). How much institutional buying is happening at Aileron Therapeutics? Institutional investors have bought a total of 3,997,681 shares in the last 24 months. This purchase volume represents approximately $11.24M in transactions. Which Aileron Therapeutics major shareholders have been selling company stock? The following institutional investors have sold Aileron Therapeutics stock in the last 24 months: Renaissance Technologies LLC ($20.20K). How much institutional selling is happening at Aileron Therapeutics? Institutional investors have sold a total of 20,200 shares in the last 24 months. This volume of shares sold represents approximately $55.95K in transactions. Related Companies Inhibrx Major Shareholders ProQR Therapeutics Major Shareholders INmune Bio Major Shareholders Puma Biotechnology Major Shareholders Organigram Major Shareholders Prime Medicine Major Shareholders AC Immune Major Shareholders Innate Pharma Major Shareholders Tiziana Life Sciences Major Shareholders Eledon Pharmaceuticals Major Shareholders This page (NASDAQ:ALRN) was last updated on 5/23/2025 by MarketBeat.com Staff From Our PartnersMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... 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