Notice: 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)7TotalInstitutional Inflows(last 12 months)$11.15MNumber 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 Remove Ads 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% 2/15/2023 Alerce 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% 1/31/2023 KCK LTD.22,341$53K0.1%-95.0%0.492% 10/31/2022 KCK 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% 2/11/2022 KCK 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% 2/2/2022 PVG 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% Now I look stupid. Real stupid... (Ad)I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. Because here we are, a quarter of a century later, almost to the exact day, and it’s happening again. Here’s the full story for you.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% 5/12/2021 Satter 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% 5/5/2021Wade G W & Inc.100,993$144K0.0%N/A0.112% 5/4/2021 Envestnet Asset Management Inc.23,886$34K0.0%+105.2%0.026% 4/28/2021 Game Plan Financial Advisors LLC77,500$112K0.1%+13.1%0.086% 2/10/2021 Renaissance Technologies LLC634,381$660K0.0%-47.3%0.759% (Data available from 1/1/2016 forward)Remove Ads 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 4D Molecular Therapeutics Major Shareholders Alumis Major Shareholders MediWound Major Shareholders Genfit Major Shareholders Acrivon Therapeutics Major Shareholders Fulcrum Therapeutics Major Shareholders RAPT Therapeutics Major Shareholders Protara Therapeutics Major Shareholders Puma Biotechnology Major Shareholders Nanobiotix Major Shareholders This page (NASDAQ:ALRN) was last updated on 3/30/2025 by MarketBeat.com Staff From Our PartnersNew “Trump” currency proposed in DCAccording to one of the most connected men in Washington… A surprising new bill was just introduced in Wash...Paradigm Press | SponsoredThe Dirty Secret About Gold Mining Stocks...Here's something most gold analysts won't tell you: 90% of gold mining companies actually destroy sharehold...Golden Portfolio | SponsoredA market crash is coming—here’s whenThe stock market cycle I've used to identify the most likely day of the next market crash is the exact same in...Chaikin Analytics | SponsoredYour Wealth is Under AttackPlease don't wait—this is your moment to take action. Download your Wealth Protection Guide now, claim your fr...American Alternative | SponsoredWall Street’s “AI Oracle” Reveals Next Big Tech PlayA tiny American tech company could be at the center of the next big AI breakthrough. Wall Street's "AI Orac...InvestorPlace | SponsoredElon’s ‘Strike Squad’ sends these 9 stocks soaring?Elon Musk's DOGE 'strike squad' just revealed it's speeding up the rollout of a radical technology across the ...Altimetry | SponsoredDoomed: These 50 Stocks Will Die Under Trump’s MAGA policies.Remember Kodak? Sears? Circuit City? They all failed to adapt to the changing times. Now, history is abo...Banyan Hill Publishing | SponsoredTrump… a socialist? Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to ...Porter & Company | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Aileron Therapeutics, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Aileron Therapeutics With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.