Alector (ALEC) Insider Trading & Ownership $1.59 -0.08 (-4.79%) Closing price 04:00 PM EasternExtended Trading$1.58 -0.01 (-0.31%) As of 07:33 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 Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Alector (NASDAQ:ALEC) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage9.10%Number OfInsiders Buying(Last 12 Months)0Number OfInsiders Selling(Last 12 Months)5Amount OfInsider Selling(Last 12 Months)$527.26K Get ALEC Insider Trade Alerts Want to know when executives and insiders are buying or selling Alector stock? 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Email Address ALEC Insider Buying and Selling by Quarter Alector Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame Start Date End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails6/20/2025Kristine YaffeDirectorSell1,000$1.44$1,440.00 12/2/2024Arnon RosenthalCEOSell52,172$2.52$131,473.44 12/2/2024Marc GrassoCFOSell16,489$2.52$41,552.28 12/2/2024Sara Kenkare-MitraInsiderSell26,500$2.52$66,780.00 9/3/2024Arnon RosenthalCEOSell26,499$4.88$129,315.12 9/3/2024Marc GrassoCFOSell7,297$4.88$35,609.36 9/3/2024Sara Kenkare-MitraInsiderSell13,926$4.88$67,958.88 8/12/2024Paula HammondDirectorSell10,500$5.06$53,130.00 (Data available from 1/1/2013 forward) ALEC Insider Trading Activity - Frequently Asked Questions Who is on Alector's Insider Roster? The list of insiders at Alector includes Arnon Rosenthal, Gary Romano, Kristine Yaffe, Marc Grasso, Paula Hammond, Polaris Venture Management Co., and Sara Kenkare-Mitra. Learn more on insiders at ALEC. What percentage of Alector stock is owned by insiders? 9.10% of Alector stock is owned by insiders. Learn more on ALEC's insider holdings. Which Alector insiders have been selling company stock? The following insiders have sold ALEC shares in the last 24 months: Arnon Rosenthal ($673,596.89), Gary Romano ($108,113.52), Kristine Yaffe ($1,440.00), Marc Grasso ($181,145.46), Paula Hammond ($53,130.00), Polaris Venture Management Co. ($3,000,000.00), and Sara Kenkare-Mitra ($166,989.54). How much insider selling is happening at Alector? Insiders have sold a total of 771,447 Alector shares in the last 24 months for a total of $4,184,415.41 sold. Alector Key ExecutivesDr. Arnon Rosenthal Ph.D. (Age 68)Co-Founder, CEO & Director Compensation: $1.02MDr. Sara Kenkare-Mitra Ph.D. (Age 56)President and Head of Research & Development Compensation: $1.19MDr. Marc Grasso M.D. (Age 50)CFO, Principal Financial Officer & Principal Accounting Officer Compensation: $738.05kDr. Gary Romano M.D. (Age 62)Ph.D., Chief Medical Officer Compensation: $602.98kMr. Peter Heutink Ph.D.Chief Scientific OfficerKatie HoganSenior Director of Corporate Communication & Investor RelationsMs. Danielle Pasqualone J.D.Ph.D., General CounselMs. Clare Hunt M.B.A.Chief People OfficerMs. Kristina Cutter M.P.H.Chief Regulatory, Pharmacovigilance, & Quality Assurance OfficerMs. Virginia DeJesus-Rueff M.B.A.Chief of Staff & Head of Strategy More Insider Trading Tools from MarketBeat Related Companies Tango Therapeutics Insider Selling Phathom Pharmaceuticals Insider Selling Xencor Insider Selling Iovance Biotherapeutics Insider Selling Upstream Bio Insider Selling Relay Therapeutics Insider Selling ChromaDex Insider Selling Evolus Insider Selling Mind Medicine (MindMed) Insider Selling Keros Therapeutics Insider Selling Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles 3 Catalysts Driving Plug Power’s Turnaround CaseInsider Selling Hits Market Leaders—Should You Be Worried?Insiders Spent Millions on These 3 Stocks Over the Past 2 Months3 Small Caps Drawing Insider and Institutional SupportDo They Know Something? Insiders & Congress Buy UnitedHealth This page (NASDAQ:ALEC) was last updated on 7/18/2025 by MarketBeat.com Staff From Our Partners[ATTENTION] This Crypto Rocket Is About Launch…Every crypto bull market ends with a final surge — the window where fortunes are made fast. According to tw...Crypto Swap Profits | SponsoredElon’s Secret Social Security BombshellTo All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social S...Banyan Hill Publishing | SponsoredCritical AI announcement set to ignite AI 2.0 I just put together an urgent new presentation that you need to see right away. In short: I believe we are...Timothy Sykes | SponsoredHedge fund legend humiliates Bitcoin tradersLarry Benedict made $274 million trading on Wall Street… Barron’s ranked his hedge fund in the top 1% world...Brownstone Research | SponsoredFREE BUY ALERT: These 3 tiny AI stocks could surgeWe're living in unprecedented times. 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