Generation Bio (GBIO) Stock Chart & Stock Price History $0.44 0.00 (-0.93%) Closing price 05/2/2025 04:00 PM EasternExtended Trading$0.44 +0.01 (+1.63%) As of 05/2/2025 07:56 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 5 Day Performance+3.20%1 Month Performance+17.02%3 Month Performance-44.16%6 Month Performance-79.82%Year-To-Date Performance-58.88%1 Year Performance-86.25% 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. Email Address GBIO Stock Chart for Sunday, May, 4, 2025 GBIO Chart by TradingView Generation Bio Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/02/2025$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 million04/22/2025$0.42$0.41-1.80%$0.42$0.39425,697 shs$27.44 million04/21/2025$0.39$0.42+6.92%$0.46$0.381.01 million shs$27.94 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. 04/18/2025$0.39$0.39$0.40$0.34402,510 shs$26.13 million04/17/2025$0.35$0.39+12.42%$0.40$0.34402,510 shs$26.13 million04/16/2025$0.37$0.35-5.68%$0.37$0.33386,224 shs$23.25 million04/15/2025$0.37$0.37-1.66%$0.40$0.35512,290 shs$24.65 million04/14/2025$0.39$0.37-4.10%$0.40$0.37658,947 shs$25.06 million04/11/2025$0.35$0.39+11.75%$0.39$0.34324,115 shs$26.13 million04/10/2025$0.37$0.35-6.31%$0.40$0.33471,971 shs$23.39 million04/09/2025$0.32$0.37+14.97%$0.39$0.32944,463 shs$24.96 million04/09/2025$0.32$0.37+14.97%$0.39$0.32944,463 shs$24.96 million04/08/2025$0.38$0.32-13.69%$0.40$0.32481,997 shs$21.71 million04/08/2025$0.38$0.32-13.69%$0.40$0.32481,997 shs$21.71 million04/07/2025$0.37$0.38+0.78%$0.40$0.35522,069 shs$25.16 million04/04/2025$0.40$0.37-6.29%$0.40$0.36820,812 shs$24.96 million04/03/2025$0.37$0.40+7.37%$0.41$0.36732,217 shs$26.64 million Related Companies CCCC Stock Price Chart ALEC Stock Price Chart TNXP Stock Price Chart IMUX Stock Price Chart PROC Stock Price Chart VIRI Stock Price Chart SLN Stock Price Chart ENTX Stock Price Chart MGNX Stock Price Chart ALTS 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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