Generation Bio (GBIO) Stock Chart & Stock Price History $0.37 -0.01 (-3.63%) Closing price 04:00 PM EasternExtended Trading$0.37 0.00 (-0.30%) As of 07:32 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 89.21%, with a year-to-date return of -65.18%. In the past month, the stock has decreased 6.01%, reflecting recent market activity. As of the latest close, Generation Bio traded at $0.38 with a market cap of $25.67 million and volume of 361,774 shares. 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Email Address 5 Day Performance-15.34%1 Month Performance-6.01%3 Month Performance-27.91%Year-To-Date Performance-65.18%1 Year Performance-89.21% GBIO Stock Chart for Friday, June, 13, 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 Capitalization06/13/2025$0.38$0.37-3.63%$0.39$0.37333,699 shs$24.74 million06/12/2025$0.39$0.38-2.05%$0.41$0.38361,774 shs$25.67 million06/11/2025$0.43$0.39-8.02%$0.43$0.39433,057 shs$26.21 million06/10/2025$0.40$0.43+6.81%$0.45$0.41682,051 shs$28.50 million06/09/2025$0.44$0.40-8.72%$0.42$0.39782,193 shs$26.68 million06/06/2025$0.37$0.44+19.26%$0.44$0.361.70 million shs$29.23 million06/05/2025$0.39$0.37-5.63%$0.39$0.36669,626 shs$24.51 million06/04/2025$0.40$0.39-2.86%$0.41$0.38552,964 shs$25.97 million06/03/2025$0.38$0.40+3.72%$0.41$0.37518,044 shs$26.73 million06/02/2025$0.37$0.38+2.78%$0.40$0.38774,093 shs$25.78 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. 05/30/2025$0.39$0.37-3.63%$0.39$0.37294,477 shs$25.08 million05/29/2025$0.37$0.39+5.89%$0.41$0.37682,077 shs$26.02 million05/28/2025$0.37$0.37-1.11%$0.39$0.37167,712 shs$24.58 million05/27/2025$0.37$0.37+0.16%$0.38$0.37376,696 shs$24.85 million05/26/2025$0.37$0.37$0.38$0.37295,559 shs$24.81 million05/23/2025$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 Related Companies SAVA Stock Price Chart VXRT Stock Price Chart CRDL Stock Price Chart KRRO Stock Price Chart VIRI Stock Price Chart ADAG Stock Price Chart ORMP Stock Price Chart OPTN Stock Price Chart HLVX Stock Price Chart CCCC 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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