Gossamer Bio (GOSS) Stock Chart & Stock Price History $2.34 +0.17 (+7.83%) Closing price 04:00 PM EasternExtended Trading$2.30 -0.04 (-1.71%) As of 07:10 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 Gossamer Bio Stock Price Performance The Gossamer Bio (GOSS) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 162.60%, with a year-to-date return of 158.68%. In the past month, the stock has increased 36.05%, reflecting recent market activity. As of the latest close, Gossamer Bio traded at $2.17 with a market cap of $493.42 million and volume of 4.42 million shares. Five years ago, the stock traded at $13.49, representing a 82.65% decrease over that period. At the time, it had a market cap of $1.04 billion and a volume of 241,834 shares. Receive GOSS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Gossamer Bio and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+19.39%1 Month Performance+36.05%3 Month Performance+101.72%Year-To-Date Performance+158.68%1 Year Performance+162.60%5 Year Performance-82.65% GOSS Stock Chart for Friday, August, 22, 2025 GOSS Chart by TradingView Gossamer 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 Capitalization08/22/2025$2.17$2.34+7.83%$2.35$2.154.89 million shs$532.07 million08/21/2025$1.95$2.17+11.28%$2.18$1.994.42 million shs$493.42 million08/20/2025$1.92$1.95+1.56%$1.98$1.881.11 million shs$443.39 million08/19/2025$1.99$1.92-3.52%$2.00$1.911.19 million shs$436.57 million08/18/2025$1.96$1.99+1.53%$2.03$1.921.53 million shs$452.49 million08/15/2025$1.96$1.96$1.98$1.911.73 million shs$445.67 million08/14/2025$1.97$1.96-0.51%$1.98$1.861.41 million shs$445.67 million08/13/2025$1.93$1.97+2.07%$2.00$1.852.94 million shs$447.94 million08/12/2025$1.73$1.93+11.37%$1.95$1.752.21 million shs$438.84 million08/11/2025$1.76$1.73-1.53%$1.80$1.682.49 million shs$394.05 million Get the Latest News and Ratings for GOSS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Gossamer Bio and its competitors with MarketBeat's FREE daily newsletter. 08/08/2025$1.74$1.76+1.15%$1.79$1.673.07 million shs$400.05 million08/07/2025$1.98$1.74-12.12%$2.02$1.723.77 million shs$395.51 million08/06/2025$2.16$1.98-8.33%$2.21$1.923.96 million shs$450.05 million08/05/2025$2.17$2.16-0.46%$2.23$2.063.07 million shs$490.97 million08/04/2025$2.00$2.17+8.50%$2.18$2.035.91 million shs$493.25 million08/01/2025$2.04$2.00-1.96%$2.04$1.912.69 million shs$454.60 million07/31/2025$2.08$2.04-1.92%$2.18$2.002.99 million shs$463.69 million07/30/2025$1.96$2.08+6.12%$2.17$2.033.90 million shs$472.78 million07/29/2025$1.98$1.96-1.01%$2.18$1.904.16 million shs$445.51 million07/28/2025$1.84$1.98+7.61%$2.03$1.843.56 million shs$450.05 million07/25/2025$1.78$1.84+3.37%$1.92$1.722.09 million shs$418.23 million07/24/2025$1.87$1.78-4.81%$1.91$1.773.39 million shs$404.59 million07/23/2025$1.72$1.87+8.72%$1.94$1.735.32 million shs$425.06 million07/22/2025$1.75$1.72-1.71%$1.76$1.672.42 million shs$390.96 million07/21/2025$1.70$1.75+2.94%$1.80$1.712.41 million shs$397.78 million Related Companies DYN Stock Chart BEAM Stock Chart APGE Stock Chart BHVN Stock Chart TWST Stock Chart TVTX Stock Chart IMCR Stock Chart AUPH Stock Chart CDTX Stock Chart WVE Stock Chart Receive GOSS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Gossamer Bio and its competitors with MarketBeat's FREE daily newsletter. 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