Upstream Bio (UPB) Stock Chart & Stock Price History $7.77 +0.19 (+2.51%) Closing price 04:00 PM EasternExtended Trading$7.78 +0.01 (+0.06%) As of 04:05 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 TradesOwnershipSEC FilingsTrendsBuy This Stock Upstream Bio Stock Price Performance 5 Day Performance+22.34%1 Month Performance-18.52%3 Month Performance-34.75%6 Month Performance-65.96%Year-To-Date Performance-52.37% 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 UPB Stock Chart for Tuesday, April, 15, 2025 UPB Chart by TradingViewRemove Ads Upstream 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 Capitalization04/14/2025$7.37$7.58+2.85%$7.93$7.22186,367 shs$406.60 million04/11/2025$6.40$7.37+15.16%$7.39$6.32303,708 shs$395.33 million04/10/2025$6.53$6.40-1.99%$6.40$5.54314,654 shs$343.30 million04/09/2025$6.07$6.53+7.58%$6.61$5.14626,762 shs$350.28 million04/09/2025$6.07$6.53+7.58%$6.61$5.14626,762 shs$350.28 million04/08/2025$6.36$6.07-4.56%$6.52$5.44394,206 shs$325.60 million04/08/2025$6.36$6.07-4.56%$6.52$5.44394,206 shs$325.60 million04/07/2025$6.10$6.36+4.26%$6.39$5.52325,456 shs$341.16 million04/04/2025$6.30$6.10-3.17%$6.12$5.59212,237 shs$327.21 million04/03/2025$6.49$6.30-2.93%$6.72$5.84234,251 shs$337.94 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. 04/02/2025$6.70$6.49-3.13%$6.86$6.33203,018 shs$348.13 million04/01/2025$6.12$6.70+9.48%$6.72$5.85290,137 shs$359.40 million03/31/2025$6.87$6.12-10.92%$6.61$6.12279,416 shs$328.28 million03/28/2025$6.81$6.87+0.88%$7.08$6.70138,106 shs$368.51 million03/27/2025$6.84$6.81-0.44%$7.25$6.63340,069 shs$365.30 million03/26/2025$7.63$6.84-10.35%$7.88$6.64424,933 shs$366.90 million03/25/2025$7.70$7.63-0.91%$7.85$7.42118,134 shs$409.28 million03/24/2025$7.62$7.70+1.05%$7.84$7.37126,481 shs$413.04 million03/21/2025$8.05$7.62-5.34%$7.96$7.48742,304 shs$408.74 million03/20/2025$8.55$8.05-5.85%$8.62$7.99267,104 shs$431.81 million03/19/2025$9.04$8.55-5.42%$9.48$8.2086,792 shs$458.63 million03/18/2025$9.87$9.04-8.41%$9.70$8.99135,964 shs$484.92 million03/17/2025$9.61$9.87+2.71%$10.08$9.28136,834 shs$529.44 million03/14/2025$9.06$9.61+6.07%$9.62$9.03134,426 shs$515.07 million Related Companies IRON Stock Price Chart TVTX Stock Price Chart SDGR Stock Price Chart IDYA Stock Price Chart MESO Stock Price Chart IMCR Stock Price Chart INDV Stock Price Chart CGON Stock Price Chart VERA Stock Price Chart SPRY 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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