Upstream Bio (UPB) Stock Chart & Stock Price History $11.47 -0.21 (-1.80%) As of 01:15 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsTrendsBuy This Stock Upstream Bio Stock Price Performance The Upstream Bio (UPB) stock chart highlights key performance trends across multiple timeframes. Since the beginning of the year, the stock decreased 30.23%. In the past month, the stock has increased 20.74%, reflecting recent market activity. As of the latest close, Upstream Bio traded at $11.68 with a market cap of $628.31 million and volume of 644,960 shares. Receive UPB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Upstream Bio and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+1.77%1 Month Performance+20.74%3 Month Performance+24.27%Year-To-Date Performance-30.23% UPB Stock Chart for Thursday, June, 12, 2025 UPB Chart by TradingView Upstream 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 Capitalization06/11/2025$11.59$11.68+0.78%$12.07$11.32644,960 shs$628.31 million06/10/2025$11.29$11.59+2.66%$11.66$11.11248,629 shs$623.47 million06/09/2025$11.27$11.29+0.18%$11.70$11.18272,840 shs$607.33 million06/06/2025$10.83$11.27+4.06%$11.52$10.83207,137 shs$606.26 million06/05/2025$10.86$10.83-0.28%$11.01$10.21201,314 shs$582.59 million06/04/2025$10.84$10.86+0.18%$11.23$10.64213,207 shs$584.20 million06/03/2025$10.66$10.84+1.69%$11.07$10.10390,192 shs$583.13 million06/02/2025$9.15$10.66+16.50%$10.71$9.25933,473 shs$573.44 million05/30/2025$9.35$9.15-2.14%$9.36$8.79495,271 shs$492.22 million05/29/2025$9.22$9.35+1.41%$9.63$9.06368,479 shs$502.97 million Get the Latest News and Ratings for UPB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Upstream Bio and its competitors with MarketBeat's FREE daily newsletter. 05/28/2025$9.62$9.22-4.16%$9.83$9.16402,607 shs$495.98 million05/27/2025$9.16$9.62+5.02%$9.90$9.23660,442 shs$517.50 million05/26/2025$9.16$9.16$9.71$8.85284,858 shs$492.75 million05/23/2025$9.31$9.16-1.61%$9.71$8.85284,858 shs$492.75 million05/22/2025$8.93$9.31+4.26%$9.56$8.48384,165 shs$500.82 million05/21/2025$9.13$8.93-2.19%$9.47$8.70282,305 shs$480.38 million05/20/2025$9.05$9.13+0.88%$9.33$8.63398,528 shs$491.14 million05/19/2025$8.64$9.05+4.75%$9.31$8.50385,483 shs$486.84 million05/16/2025$8.78$8.64-1.59%$9.38$8.62318,862 shs$464.78 million05/15/2025$8.56$8.78+2.57%$8.89$8.25237,936 shs$472.31 million05/14/2025$8.65$8.56-1.04%$8.81$7.99356,782 shs$460.48 million05/13/2025$9.50$8.65-8.95%$9.69$8.60321,024 shs$465.32 million05/12/2025$8.73$9.50+8.82%$9.70$8.24174,736 shs$511.04 million Related Companies MIRM Stock Price Chart ARWR Stock Price Chart AAPG Stock Price Chart NAMS Stock Price Chart BLTE Stock Price Chart HRMY Stock Price Chart KNSA Stock Price Chart VCEL Stock Price Chart DNLI Stock Price Chart CGON Stock Price Chart Receive UPB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Upstream Bio and its competitors with MarketBeat's FREE daily newsletter. 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