Alector (ALEC) Institutional Ownership $2.79 +0.20 (+7.72%) Closing price 09/3/2025 04:00 PM EasternExtended Trading$2.81 +0.02 (+0.72%) As of 09/3/2025 07:34 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 ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Alector (NASDAQ:ALEC)CurrentInstitutional OwnershipPercentage85.83%Number ofInstitutional Buyers(last 12 months)77TotalInstitutional Inflows(last 12 months)$41.34MNumber ofInstitutional Sellers(last 12 months)36TotalInstitutional Outflows(last 12 months)$16.65M Get ALEC Insider Trade Alerts Want to know when executives and insiders are buying or selling Alector stock? 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Skip Chart & View Institutional Buying and Selling Data ALEC Institutional Buying and Selling by Quarter Alector Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/19/2025 State of Wyoming223,092$312K0.0%+13.4%0.220% 8/15/2025 Boothbay Fund Management LLC458,863$642K0.0%+67.2%0.453% 8/15/2025 Bridgeway Capital Management LLC115,000$161K0.0%N/A0.114% 8/15/2025 Bank of America Corp DE343,909$481K0.0%+1.8%0.340% 8/14/2025 Jane Street Group LLC23,952$34K0.0%-90.7%0.024% 8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.46,286$65K0.0%-38.0%0.046% 8/14/2025 The Manufacturers Life Insurance Company 313,578$439K0.0%+153.1%0.310% 8/14/2025 Diadema Partners LP266,023$372K0.1%-41.7%0.263% 8/14/2025 Cerity Partners LLC23,736$33K0.0%-42.9%0.023% 8/13/2025 Walleye Capital LLC266,204$373K0.0%-12.9%0.263% Get the Latest News and Ratings for ALEC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Alector and its competitors with MarketBeat's FREE daily newsletter. 8/13/2025 Invesco Ltd.175,801$246K0.0%+18.3%0.174% 8/13/2025 Sio Capital Management LLC845,531$1.18M0.5%+1.0%0.835% 8/13/2025 Panagora Asset Management Inc.516,680$723K0.0%+41.0%0.511% 8/13/2025 Russell Investments Group Ltd.100,366$144K0.0%+87.9%0.099% 8/12/2025 XTX Topco Ltd73,338$103K0.0%+125.2%0.072% 8/12/2025 Prudential Financial Inc.21,322$30K0.0%N/A0.021% 8/12/2025 JPMorgan Chase & Co.45,491$64K0.0%-96.9%0.045% 8/11/2025 Persistent Asset Partners Ltd61,096$86K0.1%-41.8%0.060% 8/8/2025 Intech Investment Management LLC39,915$56K0.0%-34.3%0.040% 8/8/2025 Geode Capital Management LLC1,982,068$2.78M0.0%+1.0%1.982% 8/7/2025 Acadian Asset Management LLC2,170,388$3.03M0.0%+50.7%2.171% 8/7/2025 Los Angeles Capital Management LLC151,896$213K0.0%+5.3%0.152% 8/5/2025 Bank of Montreal Can52,380$73K0.0%N/A0.052% 7/30/2025 FNY Investment Advisers LLC20,000$28K0.0%+100.0%0.020% 7/28/2025 TD Asset Management Inc651,738$912K0.0%+483.3%0.652% 7/25/2025 CWM LLC25,897$36K0.0%-23.0%0.026% 7/25/2025 Vanguard Personalized Indexing Management LLC52,095$73K0.0%+49.2%0.052% 7/23/2025 Vontobel Holding Ltd.38,000$53K0.0%+26.7%0.038% 6/27/2025 Goldman Sachs Group Inc.312,145$384K0.0%-23.7%0.312% 5/28/2025 Strs Ohio102,600$126K0.0%N/A0.103% 5/21/2025 Acadian Asset Management LLC1,440,661$1.77M0.0%+39.8%1.441% 5/19/2025 Jane Street Group LLC256,551$316K0.0%+4.7%0.257% 5/16/2025 Goldman Sachs Group Inc.312,145$384K0.0%-23.7%0.312% 5/16/2025 Jacobs Levy Equity Management Inc.1,334,032$1.64M0.0%+25.9%1.334% 5/16/2025 AQR Capital Management LLC492,592$606K0.0%-12.5%0.493% 5/16/2025 Almitas Capital LLC321,568$396K0.1%+12.9%0.322% 5/16/2025 ADAR1 Capital Management LLC380,330$468K0.1%+3.3%0.380% 5/15/2025 Vestal Point Capital LP504,540$621K0.0%N/A0.505% 5/15/2025 State of Wyoming196,814$242K0.0%N/A0.197% 5/14/2025 Ieq Capital LLC80,406$99K0.0%N/A0.080% 50-yr Wall Street Legend Issues Mag 7 Warning (Ad)A massive money shift is underway in the AI market. And it's opening up an extraordinary opportunity in a NEW kind of AI stock.Details here...5/14/2025 Walleye Capital LLC305,601$376K0.0%+108.3%0.306% 5/13/2025 Persistent Asset Partners Ltd104,927$129K0.1%N/A0.105% 5/12/2025 Nuveen LLC138,180$170K0.0%N/A0.138% 5/12/2025 Invesco Ltd.148,576$183K0.0%+209.6%0.149% 5/9/2025 Charles Schwab Investment Management Inc.624,730$768K0.0%-2.9%0.625% 5/8/2025 XTX Topco Ltd32,571$40K0.0%-36.1%0.033% 5/1/2025 CWM LLC33,643$41K0.0%+370.7%0.034% 4/30/2025 Cerity Partners LLC41,564$51K0.0%N/A0.042% 4/29/2025 Bank of New York Mellon Corp249,494$307K0.0%+8.1%0.252% 2/17/2025 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC160,570$303K0.0%+12.2%0.164% 2/17/2025 Velan Capital Investment Management LP55,000$104K0.1%N/A0.056% 2/17/2025 Squarepoint Ops LLC13,114$25K0.0%N/A0.013% 2/17/2025 Two Sigma Advisers LP429,900$813K0.0%+8.9%0.439% 2/17/2025 Two Sigma Investments LP407,989$771K0.0%+55.4%0.417% 2/17/2025 Tema Etfs LLC14,344$27K0.0%N/A0.015% 2/17/2025 Sphera Funds Management LTD.324,639$614K0.1%-47.6%0.332% 2/17/2025 ProShare Advisors LLC27,367$52K0.0%+30.3%0.028% 2/17/2025Nuveen Asset Management LLC187,042$354K0.0%-28.1%0.191% 2/17/2025 OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC50,000$94K0.0%N/A0.051% 2/17/2025 Millennium Management LLC74,685$141K0.0%+45.8%0.076% 2/17/2025 Jacobs Levy Equity Management Inc.1,059,691$2.00M0.0%+4.1%1.082% 2/17/2025 D. E. Shaw & Co. Inc.368,977$697K0.0%+93.2%0.377% 2/17/2025 Deutsche Bank AG1,106,287$2.09M0.0%-4.2%1.130% 2/17/2025 Deerfield Management Company L.P. Series C1,066,962$2.02M0.0%+1.1%1.090% 2/17/2025 BNP Paribas Financial Markets165,589$313K0.0%+723.0%0.169% 2/17/2025 Algert Global LLC44,460$84K0.0%-28.2%0.045% 2/17/2025 Almitas Capital LLC284,845$538K0.1%N/A0.291% 2/17/2025 5AM Venture Management LLC995,841$1.88M0.4%N/A1.017% 2/14/2025 RA Capital Management L.P.9,695,228$18.32M0.2%N/A9.900% 2/14/2025 Jane Street Group LLC244,933$463K0.0%+58.1%0.250% 2/14/2025 Northern Trust Corp759,874$1.44M0.0%+5.6%0.776% 2/14/2025 Tudor Investment Corp ET AL40,796$77K0.0%N/A0.042% 2/14/2025 Boothbay Fund Management LLC294,156$556K0.0%+562.5%0.300% 2/14/2025 Susquehanna Fundamental Investments LLC145,037$274K0.0%N/A0.148% 2/14/2025 Price T Rowe Associates Inc. MD746,088$1.41M0.0%-8.6%0.762% 2/14/2025 Diadema Partners LP239,019$452K0.2%N/A0.244% 2/14/2025 Eversept Partners LP200,095$378K0.0%-39.9%0.204% 2/14/2025 Hsbc Holdings PLC57,983$109K0.0%+26.1%0.059% 2/14/2025 Tower Research Capital LLC TRC14,670$28K0.0%+71.1%0.015% 2/14/2025 Dimensional Fund Advisors LP882,120$1.67M0.0%+21.7%0.901% 2/13/2025 Walleye Capital LLC146,679$277K0.0%-28.1%0.150% 2/13/2025 XTX Topco Ltd50,971$96K0.0%+78.3%0.052% 2/13/2025 Renaissance Technologies LLC915,738$1.73M0.0%+63.0%0.935% 2/13/2025 Invesco Ltd.47,985$91K0.0%+27.7%0.049% 2/13/2025 ADAR1 Capital Management LLC368,330$696K0.1%-14.1%0.376% 2/13/2025 Aristides Capital LLC106,600$201K0.0%N/A0.109% 2/13/2025 Russell Investments Group Ltd.56,239$106K0.0%-22.6%0.057% 2/13/2025 Wells Fargo & Company MN37,966$72K0.0%+50.0%0.039% 2/12/2025 RPO LLC26,395$50K0.0%N/A0.027% 2/12/2025 Geode Capital Management LLC1,914,250$3.62M0.0%+0.5%1.955% The End of Elon Musk…? (Ad)The End of Elon Musk? Don't make him laugh. 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According to his research, if you listen to the media and miss out on Elon's newest breakthrough, it's going to cost you the fortune of a lifetime.Click here to see why the "End of Elon" crowd is about to be wrong again.2/12/2025 Franklin Resources Inc.930,534$1.76M0.0%-3.4%0.950% 2/12/2025 Alliancebernstein L.P.82,100$155K0.0%-88.5%0.084% 2/12/2025 JPMorgan Chase & Co.1,642,570$3.10M0.0%-39.8%1.677% 2/11/2025 American Century Companies Inc.56,735$107K0.0%-11.1%0.058% 2/11/2025 Intech Investment Management LLC35,382$67K0.0%+83.5%0.036% 2/6/2025 Charles Schwab Investment Management Inc.643,456$1.22M0.0%-15.4%0.657% 2/4/2025 Los Angeles Capital Management LLC90,736$171K0.0%+61.2%0.093% 1/30/2025 Vontobel Holding Ltd.25,000$47K0.0%+127.3%0.026% 1/28/2025 Apollon Wealth Management LLC25,000$47K0.0%N/A0.026% 1/17/2025 SG Americas Securities LLC39,334$74K0.0%+27.9%0.040% (Data available from 1/1/2016 forward) ALEC Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of ALEC shares? During the previous two years, 127 institutional investors and hedge funds held shares of Alector. The most heavily invested institutionals were FMR LLC ($68.01M), Vanguard Group Inc. ($29.57M), RA Capital Management L.P. ($18.32M), State Street Corp ($12.19M), Braidwell LP ($10.06M), Euclidean Capital LLC ($8.48M), and Acadian Asset Management LLC ($3.03M).Learn more on Alector's institutional investors. What percentage of Alector's stock is owned by institutional investors? 85.83% of Alector's stock is owned by institutional investors. Learn more on ALEC's institutional investor holdings. Which institutional investors have been buying Alector's stock? Of the 102 institutional investors that purchased Alector's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: RA Capital Management L.P. ($9.70M), FMR LLC ($4.62M), Acadian Asset Management LLC ($1.65M), JPMorgan Chase & Co. ($1.07M), 5AM Venture Management LLC ($995.84K), Jacobs Levy Equity Management Inc. ($799.38K), and TD Asset Management Inc ($647.87K). How much institutional buying is happening at Alector? Institutional investors have bought a total of 19,976,850 shares in the last 24 months. This purchase volume represents approximately $41.34M in transactions. Which of Alector's major shareholders have been selling company stock? Of the 36 institutional investors that sold Alector's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: JPMorgan Chase & Co. ($2.53M), Alliancebernstein L.P. ($629.45K), Point72 Asset Management L.P. ($529.85K), Verition Fund Management LLC ($473.79K), Sphera Funds Management LTD. ($295.36K), Jane Street Group LLC ($232.60K), and Braidwell LP ($222.46K). How much institutional selling is happening at Alector? Institutional investors have sold a total of 6,779,856 shares in the last 24 months. This volume of shares sold represents approximately $16.65M in transactions. Related Companies Upstream Bio Major Shareholders Urogen Pharma Major Shareholders uniQure Major Shareholders Trevi Therapeutics Major Shareholders Phathom Pharmaceuticals Major Shareholders Amylyx Pharmaceuticals Major Shareholders Akebia Therapeutics Major Shareholders Anavex Life Sciences Major Shareholders Immunome Major Shareholders Iovance Biotherapeutics Major Shareholders This page (NASDAQ:ALEC) was last updated on 9/4/2025 by MarketBeat.com Staff From Our PartnersCrypto Income (almost instantly)How would you like to collect a small percentage of the $4 billion changing hands daily in the crypto market? ...Awesomely, LLC | SponsoredRetire Comfortably with These New Monthly Income ETFs?Too many retirees lie awake at night, worried their savings won’t last. Traditional advice and tiny returns ju...Investors Alley | SponsoredThe End of Elon Musk…?The End of Elon Musk? Don't make him laugh. 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