Generation Bio (GBIO) Stock Chart & Stock Price History $0.37 -0.01 (-2.58%) Closing price 05/23/2025 04:00 PM EasternExtended Trading$0.37 +0.00 (+0.24%) As of 05/23/2025 06:42 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 ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Generation Bio Stock Price Performance The Generation Bio (GBIO) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 87.94%, with a year-to-date return of -65.08%. In the past month, the stock has decreased 12.01%, reflecting recent market activity. As of the latest close, Generation Bio traded at $0.37 with a market cap of $24.81 million and volume of 295,559 shares. 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Email Address 5 Day Performance-7.89%1 Month Performance-12.01%3 Month Performance-38.73%Year-To-Date Performance-65.08%1 Year Performance-87.94% GBIO Stock Chart for Saturday, May, 24, 2025 GBIO Chart by TradingView Generation Bio 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 Capitalization05/23/2025$0.38$0.37-2.58%$0.38$0.37295,559 shs$24.81 million05/22/2025$0.39$0.38-3.38%$0.41$0.38176,401 shs$25.47 million05/21/2025$0.40$0.39-2.16%$0.41$0.38267,370 shs$26.36 million05/20/2025$0.40$0.40+0.02%$0.41$0.39190,100 shs$26.94 million05/19/2025$0.38$0.40+5.38%$0.41$0.38468,776 shs$26.94 million05/16/2025$0.38$0.38+1.52%$0.38$0.36353,127 shs$25.56 million05/15/2025$0.38$0.38-1.88%$0.38$0.37202,122 shs$25.18 million05/14/2025$0.39$0.38-2.52%$0.40$0.37810,130 shs$25.65 million05/13/2025$0.39$0.39+0.59%$0.40$0.38308,751 shs$26.32 million05/12/2025$0.35$0.39+11.23%$0.42$0.37901,095 shs$26.16 million Get the Latest News and Ratings for GBIO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Generation Bio and its competitors with MarketBeat's FREE daily newsletter. 05/09/2025$0.37$0.35-4.10%$0.40$0.35751,875 shs$23.52 million05/08/2025$0.39$0.37-6.15%$0.41$0.361.19 million shs$24.53 million05/07/2025$0.37$0.39+4.19%$0.40$0.37955,650 shs$26.14 million05/06/2025$0.41$0.37-8.42%$0.43$0.36573,938 shs$25.08 million05/05/2025$0.44$0.41-6.24%$0.45$0.40260,914 shs$27.39 million05/02/2025$0.44$0.44-0.93%$0.45$0.43219,252 shs$29.21 million05/01/2025$0.43$0.44+1.59%$0.45$0.42290,750 shs$29.49 million04/30/2025$0.42$0.43+2.53%$0.44$0.40350,323 shs$29.02 million04/29/2025$0.43$0.42-2.09%$0.44$0.42171,962 shs$28.31 million04/28/2025$0.43$0.43+1.01%$0.44$0.42216,147 shs$28.91 million04/25/2025$0.42$0.43+1.55%$0.44$0.41316,071 shs$28.62 million04/24/2025$0.45$0.42-6.62%$0.44$0.41408,532 shs$28.19 million04/23/2025$0.41$0.45+9.99%$0.46$0.41647,323 shs$30.18 million Related Companies COYA Stock Price Chart SGMT Stock Price Chart IVVD Stock Price Chart MGNX Stock Price Chart BDTX Stock Price Chart CTNM Stock Price Chart ENTX Stock Price Chart KYTX Stock Price Chart OPTN Stock Price Chart HLVX Stock Price Chart Receive GBIO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Generation Bio and its competitors with MarketBeat's FREE daily newsletter. 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