Alector (ALEC) Stock Chart & Stock Price History $2.36 -0.17 (-6.55%) As of 03:21 PM Eastern This is a fair market value 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 55.46%, with a year-to-date return of 25.13%. In the past month, the stock has increased 34.38%, reflecting recent market activity. As of the latest close, Alector traded at $2.52 with a market cap of $255.05 million and volume of 1.34 million shares. Five years ago, the stock traded at $13.26, representing a 82.16% decrease over that period. At the time, it had a market cap of $978.09 million and a volume of 731,145 shares. 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Email Address 5 Day Performance+7.50%1 Month Performance+34.38%3 Month Performance+90.73%Year-To-Date Performance+25.13%1 Year Performance-55.46%5 Year Performance-82.16% ALEC Stock Chart for Monday, August, 25, 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 Capitalization08/22/2025$2.27$2.52+11.01%$2.56$2.291.34 million shs$255.05 million08/21/2025$2.20$2.27+3.18%$2.29$2.09676,535 shs$229.75 million08/20/2025$2.16$2.20+1.85%$2.23$2.031.29 million shs$222.67 million08/19/2025$2.13$2.16+1.41%$2.29$2.091.40 million shs$218.61 million08/18/2025$2.25$2.13-5.33%$2.32$2.101.39 million shs$215.58 million08/15/2025$2.46$2.25-8.54%$2.45$2.221.61 million shs$227.72 million08/14/2025$2.18$2.46+12.90%$2.50$2.132.40 million shs$248.98 million08/13/2025$2.00$2.18+8.95%$2.23$2.011.55 million shs$220.54 million08/12/2025$2.23$2.00-10.31%$2.30$1.991.72 million shs$202.42 million08/11/2025$2.15$2.23+3.72%$2.42$2.114.21 million shs$225.70 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. 08/08/2025$1.46$2.15+47.26%$2.22$1.548.86 million shs$214.98 million08/07/2025$1.43$1.46+2.10%$1.47$1.42646,102 shs$145.99 million08/06/2025$1.56$1.43-8.33%$1.57$1.43518,406 shs$142.99 million08/05/2025$1.55$1.56+0.65%$1.60$1.51603,512 shs$155.98 million08/04/2025$1.45$1.55+6.90%$1.55$1.43487,370 shs$154.99 million08/01/2025$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 million Related Companies Cronos Group Stock Price Chart Verve Therapeutics Stock Price Chart Valneva Stock Price Chart Nuvation Bio Stock Price Chart Mineralys Therapeutics Stock Price Chart atai Life Sciences Stock Price Chart Iovance Biotherapeutics Stock Price Chart Upstream Bio Stock Price Chart Oric Pharmaceuticals Stock Price Chart Pharming Group 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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