Alector (ALEC) Stock Chart & Stock Price History $1.45 -0.04 (-2.68%) Closing price 08/1/2025 04:00 PM EasternExtended Trading$1.90 +0.45 (+31.03%) As of 04:00 AM 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 Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Alector Stock Price Performance The Alector (ALEC) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 72.56%, with a year-to-date return of -23.28%. In the past month, the stock has decreased 1.69%, reflecting recent market activity. As of the latest close, Alector traded at $1.45 with a market cap of $144.99 million and volume of 737,122 shares. Five years ago, the stock traded at $15.02, representing a 90.35% decrease over that period. At the time, it had a market cap of $1.19 billion and a volume of 872,250 shares. Receive ALEC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Alector and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-9.38%1 Month Performance-1.69%3 Month Performance+11.54%Year-To-Date Performance-23.28%1 Year Performance-72.56%5 Year Performance-90.35% ALEC Stock Chart for Monday, August, 4, 2025 ALEC Chart by TradingView Alector Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization08/01/2025$1.49$1.45-2.68%$1.49$1.42737,122 shs$144.99 million07/31/2025$1.60$1.49-6.88%$1.64$1.47650,946 shs$148.99 million07/30/2025$1.61$1.60-0.62%$1.73$1.56657,189 shs$159.98 million07/29/2025$1.76$1.61-8.52%$1.81$1.60627,610 shs$160.99 million07/28/2025$1.76$1.76$2.00$1.761.22 million shs$175.98 million07/25/2025$1.79$1.76-1.68%$1.80$1.74297,049 shs$175.98 million07/24/2025$1.78$1.79+0.56%$1.81$1.75356,752 shs$178.98 million07/23/2025$1.72$1.78+3.49%$1.81$1.71367,283 shs$177.99 million07/22/2025$1.62$1.72+6.17%$1.74$1.62390,538 shs$171.98 million07/21/2025$1.59$1.62+1.89%$1.66$1.56409,193 shs$161.98 million 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. 07/18/2025$1.67$1.59-4.79%$1.70$1.58299,435 shs$158.98 million07/17/2025$1.56$1.67+7.05%$1.67$1.55366,165 shs$166.98 million07/16/2025$1.55$1.56+0.65%$1.60$1.53321,134 shs$154.99 million07/15/2025$1.67$1.55-7.19%$1.69$1.54297,151 shs$154.98 million07/14/2025$1.61$1.67+3.73%$1.69$1.58233,740 shs$166.98 million07/11/2025$1.72$1.61-6.40%$1.71$1.60254,301 shs$160.98 million07/10/2025$1.65$1.72+4.24%$1.75$1.62710,580 shs$171.99 million07/09/2025$1.52$1.65+8.55%$1.69$1.51565,311 shs$164.98 million07/08/2025$1.44$1.52+5.56%$1.56$1.45455,255 shs$151.99 million07/07/2025$1.48$1.44-2.37%$1.49$1.41306,464 shs$143.99 million07/04/2025$1.48$1.48$1.51$1.44233,289 shs$147.49 million07/03/2025$1.50$1.48-1.67%$1.51$1.44233,289 shs$147.49 million Related Companies Relay Therapeutics Stock Price Chart Bicara Therapeutics Stock Price Chart VectivBio Stock Price Chart Tilray Brands Stock Price Chart Organogenesis Stock Price Chart Xencor Stock Price Chart Maravai LifeSciences Stock Price Chart Taysha Gene Therapies Stock Price Chart Tourmaline Bio Stock Price Chart Bicycle Therapeutics Stock Price Chart Receive ALEC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Alector and its competitors with MarketBeat's FREE daily newsletter. 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