Agenus (AGEN) Stock Chart & Stock Price History $4.52 -0.05 (-1.09%) Closing price 08/22/2025 04:00 PM EasternExtended Trading$4.56 +0.04 (+0.88%) As of 08/22/2025 07:08 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 Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Agenus Stock Price Performance The Agenus (AGEN) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 22.07%, with a year-to-date return of 64.96%. In the past month, the stock has decreased 25.17%, reflecting recent market activity. As of the latest close, Agenus traded at $4.52 with a market cap of $144.01 million and volume of 392,103 shares. Five years ago, the stock traded at a split-adjusted price of $79.00, representing a 94.28% decrease over that period. At the time, it had a market cap of $724.59 million and a volume of 97,980 shares. Receive AGEN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Agenus and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-0.22%1 Month Performance-25.17%3 Month Performance+18.32%Year-To-Date Performance+64.96%1 Year Performance-22.07%5 Year Performance-94.28% AGEN Stock Chart for Sunday, August, 24, 2025 AGEN Chart by TradingView Agenus 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$4.57$4.52-1.09%$4.70$4.49392,103 shs$144.01 million08/21/2025$4.51$4.57+1.33%$4.66$4.42356,493 shs$145.62 million08/20/2025$4.53$4.51-0.44%$4.58$4.36298,703 shs$143.69 million08/19/2025$4.53$4.53$4.58$4.43345,538 shs$144.33 million08/18/2025$4.63$4.53-2.16%$4.69$4.51247,683 shs$144.34 million08/15/2025$4.55$4.63+1.76%$4.72$4.53455,300 shs$147.51 million08/14/2025$4.54$4.55+0.22%$4.64$4.39542,141 shs$144.98 million08/13/2025$4.81$4.54-5.61%$4.84$4.45735,440 shs$124.49 million08/12/2025$4.27$4.81+12.65%$4.84$4.15949,637 shs$131.89 million08/11/2025$4.80$4.27-11.04%$4.59$4.061.01 million shs$117.07 million Get the Latest News and Ratings for AGEN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Agenus and its competitors with MarketBeat's FREE daily newsletter. 08/08/2025$4.76$4.80+0.84%$4.82$4.60605,793 shs$131.60 million08/07/2025$4.76$4.76$4.88$4.65626,635 shs$130.52 million08/06/2025$5.29$4.76-10.02%$5.32$4.75775,305 shs$130.52 million08/05/2025$5.40$5.29-2.04%$5.43$5.09527,685 shs$145.04 million08/04/2025$5.36$5.40+0.75%$5.59$5.37347,876 shs$148.07 million08/01/2025$5.52$5.36-2.90%$5.63$5.34265,442 shs$146.97 million07/31/2025$5.90$5.52-6.44%$6.00$5.49670,328 shs$151.36 million07/30/2025$5.88$5.90+0.34%$6.21$5.82469,342 shs$161.76 million07/29/2025$6.35$5.88-7.40%$6.33$5.76872,861 shs$161.23 million07/28/2025$5.96$6.35+6.54%$6.58$5.901.23 million shs$174.12 million07/25/2025$6.04$5.96-1.32%$6.26$5.81939,983 shs$163.42 million07/24/2025$6.07$6.04-0.49%$6.24$5.89503,009 shs$165.60 million07/23/2025$6.12$6.07-0.82%$6.24$5.90686,471 shs$166.44 million Related Companies Myriad Genetics Stock Price Chart Verastem Stock Price Chart Emergent Biosolutions Stock Price Chart Lexicon Pharmaceuticals Stock Price Chart XOMA Royalty Stock Price Chart Codexis Stock Price Chart Crescent Biopharma Stock Price Chart Vanda Pharmaceuticals Stock Price Chart Ironwood Pharmaceuticals Stock Price Chart Sangamo Therapeutics Stock Price Chart Receive AGEN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Agenus and its competitors with MarketBeat's FREE daily newsletter. 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