Agenus (AGEN) Stock Chart & Stock Price History $3.88 -0.11 (-2.76%) Closing price 10/17/2025 04:00 PM EasternExtended Trading$3.88 0.00 (-0.13%) As of 10/17/2025 07:48 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 16.02%, with a year-to-date return of 41.61%. In the past month, the stock has decreased 11.42%, reflecting recent market activity. As of the latest close, Agenus traded at $3.88 with a market cap of $123.62 million and volume of 551,816 shares. Five years ago, the stock traded at a split-adjusted price of $84.00, representing a 95.38% decrease over that period. At the time, it had a market cap of $770.46 million and a volume of 53,358 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. Subscribe Now View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. 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Read our full terms of service and privacy policy. 5 Day Performance-2.27%1 Month Performance-11.42%3 Month Performance-36.91%Year-To-Date Performance+41.61%1 Year Performance-16.02%5 Year Performance-95.38% AGEN Stock Chart for Sunday, October, 19, 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 Capitalization10/17/2025$3.99$3.88-2.76%$4.10$3.85551,816 shs$123.62 million10/16/2025$3.98$3.99+0.25%$4.18$3.95523,298 shs$127.12 million10/15/2025$3.97$3.98+0.25%$4.01$3.84391,724 shs$126.82 million10/14/2025$4.05$3.97-1.98%$3.99$3.84355,099 shs$126.48 million10/13/2025$3.97$4.05+2.02%$4.07$3.92383,621 shs$129.03 million10/10/2025$4.25$3.97-6.59%$4.26$3.95325,499 shs$126.48 million10/09/2025$4.17$4.25+1.92%$4.40$4.22449,440 shs$135.42 million10/08/2025$4.25$4.17-1.88%$4.23$4.12351,592 shs$132.86 million10/07/2025$4.15$4.25+2.41%$4.38$4.12592,751 shs$135.41 million10/06/2025$4.14$4.15+0.24%$4.21$4.07406,065 shs$132.24 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. 10/03/2025$3.94$4.14+5.08%$4.34$3.92826,674 shs$131.92 million10/02/2025$3.90$3.94+1.03%$3.96$3.87288,002 shs$125.53 million10/01/2025$3.85$3.90+1.30%$3.99$3.82295,320 shs$124.25 million09/30/2025$3.98$3.85-3.27%$3.97$3.76436,506 shs$122.68 million09/29/2025$3.95$3.98+0.76%$4.05$3.92336,891 shs$126.80 million09/26/2025$3.90$3.95+1.28%$3.98$3.78494,643 shs$125.85 million09/25/2025$4.27$3.90-8.67%$4.23$3.87853,098 shs$124.25 million09/24/2025$4.44$4.27-3.83%$4.53$4.25392,182 shs$136.06 million09/23/2025$4.60$4.44-3.48%$4.67$4.42414,156 shs$141.46 million09/22/2025$4.38$4.60+5.02%$4.80$4.26611,565 shs$146.56 million09/19/2025$4.55$4.38-3.74%$4.59$4.32609,155 shs$139.55 million09/18/2025$4.55$4.55$4.72$4.48527,529 shs$144.98 million Related Companies Emergent Biosolutions Stock Price Chart Rigel Pharmaceuticals Stock Price Chart XOMA Royalty Stock Price Chart Vanda Pharmaceuticals Stock Price Chart Ironwood Pharmaceuticals Stock Price Chart Codexis Stock Price Chart Sangamo Therapeutics Stock Price Chart Crescent Biopharma Stock Price Chart Achieve Life Sciences Stock Price Chart Dominari 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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