Agenus (AGEN) Stock Chart & Stock Price History $4.34 +0.06 (+1.28%) As of 03:57 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 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 14.20%, with a year-to-date return of 56.57%. In the past month, the stock has decreased 18.90%, reflecting recent market activity. As of the latest close, Agenus traded at $4.29 with a market cap of $136.68 million and volume of 307,990 shares. Five years ago, the stock traded at a split-adjusted price of $78.40, representing a 94.53% decrease over that period. At the time, it had a market cap of $777.80 million and a volume of 91,782 shares. 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Read our full terms of service and privacy policy. 5 Day Performance+2.63%1 Month Performance-18.90%3 Month Performance-16.86%Year-To-Date Performance+56.57%1 Year Performance-14.20%5 Year Performance-94.53% AGEN Stock Chart for Friday, September, 5, 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 Capitalization09/04/2025$4.26$4.29+0.70%$4.30$4.12307,990 shs$136.68 million09/03/2025$4.16$4.26+2.40%$4.45$4.21344,579 shs$135.72 million09/02/2025$4.18$4.16-0.48%$4.33$4.10402,522 shs$132.54 million09/01/2025$4.18$4.18$4.29$4.13317,055 shs$133.18 million08/29/2025$4.25$4.18-1.65%$4.29$4.13317,055 shs$133.18 million08/28/2025$4.54$4.25-6.39%$4.57$4.23484,974 shs$135.41 million08/27/2025$4.63$4.54-1.94%$4.65$4.53245,771 shs$144.66 million08/26/2025$4.39$4.63+5.47%$4.70$4.31507,014 shs$147.51 million08/25/2025$4.52$4.39-2.88%$4.55$4.36292,672 shs$139.87 million08/22/2025$4.57$4.52-1.09%$4.70$4.49392,103 shs$144.01 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. 08/21/2025$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 million08/08/2025$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 million Related Companies Verastem Stock Price Chart Myriad Genetics Stock Price Chart Emergent Biosolutions Stock Price Chart Lexicon Pharmaceuticals Stock Price Chart XOMA Royalty Stock Price Chart Crescent Biopharma Stock Price Chart Vanda Pharmaceuticals Stock Price Chart Codexis Stock Price Chart Ironwood Pharmaceuticals Stock Price Chart Achieve Life Sciences 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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