Generation Bio (GBIO) Stock Chart & Stock Price History $0.41 -0.11 (-20.60%) As of 02:35 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 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 85.32%, with a year-to-date return of -60.94%. In the past month, the stock has increased 15.00%, reflecting recent market activity. As of the latest close, Generation Bio traded at $0.52 with a market cap of $34.96 million and volume of 1.91 million shares. Five years ago, the stock traded at $22.39, representing a 98.15% decrease over that period. At the time, it had a market cap of $936.78 million and a volume of 158,300 shares. 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Email Address 5 Day Performance+7.14%1 Month Performance+15.00%3 Month Performance+6.15%Year-To-Date Performance-60.94%1 Year Performance-85.32%5 Year Performance-98.15% GBIO Stock Chart for Friday, July, 18, 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 Capitalization07/17/2025$0.57$0.52-7.72%$0.58$0.501.91 million shs$34.96 million07/16/2025$0.43$0.57+32.63%$0.59$0.449.63 million shs$37.88 million07/15/2025$0.44$0.43-3.18%$0.46$0.411.08 million shs$28.56 million07/14/2025$0.39$0.44+13.87%$0.45$0.392.00 million shs$29.50 million07/11/2025$0.37$0.39+3.62%$0.40$0.371.09 million shs$25.90 million07/10/2025$0.38$0.37-1.45%$0.38$0.37578,255 shs$25.00 million07/09/2025$0.35$0.38+7.23%$0.38$0.351.08 million shs$25.37 million07/08/2025$0.33$0.35+6.94%$0.36$0.33831,790 shs$23.66 million07/07/2025$0.35$0.33-5.17%$0.34$0.32507,866 shs$22.12 million07/04/2025$0.35$0.35$0.36$0.33676,584 shs$23.33 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. 07/03/2025$0.34$0.35+2.99%$0.36$0.33676,584 shs$23.33 million07/02/2025$0.32$0.34+5.59%$0.35$0.32695,465 shs$22.65 million07/01/2025$0.32$0.32-0.03%$0.34$0.31863,292 shs$21.45 million06/30/2025$0.30$0.32+6.56%$0.35$0.324.10 million shs$21.46 million06/27/2025$0.36$0.30-15.40%$0.37$0.307.36 million shs$20.14 million06/26/2025$0.36$0.36-2.63%$0.37$0.35372,273 shs$23.81 million06/25/2025$0.37$0.36-1.51%$0.38$0.35601,622 shs$24.45 million06/24/2025$0.36$0.37+2.89%$0.38$0.36527,297 shs$24.82 million06/23/2025$0.38$0.36-5.29%$0.38$0.35370,247 shs$24.13 million06/20/2025$0.36$0.38+5.56%$0.39$0.36522,654 shs$25.48 million06/19/2025$0.36$0.36$0.39$0.351.11 million shs$24.13 million06/18/2025$0.38$0.36-5.76%$0.39$0.351.11 million shs$24.13 million06/17/2025$0.40$0.38-4.02%$0.41$0.38289,691 shs$25.61 million Related Companies BHST Stock Price Chart TNYA Stock Price Chart ONCY Stock Price Chart PLX Stock Price Chart IOBT Stock Price Chart CHRS Stock Price Chart CRDL Stock Price Chart HLVX Stock Price Chart TCRX Stock Price Chart SAVA 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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