NASDAQ:UPB Upstream Bio (UPB) Stock Price, News & Analysis $6.07 -0.29 (-4.56%) Closing price 04:00 PM EasternExtended Trading$6.07 0.00 (0.00%) As of 07:50 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 Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsTrendsBuy This Stock About Upstream Bio Stock (NASDAQ:UPB) 30 days 90 days 365 days Advanced Chart View Price History Chart DataSkip Price History Chart Get Upstream Bio alerts:Sign Up Key Stats Today's Range$5.44▼$6.5250-Day Range$6.10▼$11.0052-Week Range$5.44▼$29.46Volume394,206 shsAverage Volume324,885 shsMarket Capitalization$325.60 millionP/E RatioN/ADividend YieldN/APrice Target$56.50Consensus RatingBuy Company OverviewUpstream Bio, Inc., a clinical-stage biotechnology company, develops treatments for inflammatory diseases that focuses on severe respiratory disorders. It develops verekitug, a monoclonal antibody that targets and inhibits the thymic stromal lymphopoietin receptor. The company also develops therapies to treat severe asthma, chronic rhinosinusitis with nasal polyps, and chronic obstructive pulmonary disease. Upstream Bio, Inc. was incorporated in 2021 and is based in Waltham, Massachusetts.Read More… Remove Ads Receive UPB Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Upstream Bio and its competitors with MarketBeat's FREE daily newsletter. Email Address UPB Stock News HeadlinesUpstream Bio’s Financial Results and Strategic ProgressMarch 13, 2025 | tipranks.comUpstream Bio, Inc. Completes Enrollment in Phase 2 Trial of Verekitug for Chronic Rhinosinusitis and Raises $293 Million in IPOMarch 12, 2025 | quiverquant.com**Breaking NEWS* This Company Starts To Rally As it Reduces $20 Million in Debt**Breaking NEWS* This Company Starts To Rally As it Reduces $20 Million in Debt Discover why Notable Names like Cisco, Hewlett Packard and New York Life are Choosing to Do Business with this Growing Marketing Tech CompanyApril 8, 2025 | Huge Alerts (Ad)Upstream Bio Reports Fourth Quarter and Full Year 2024 Financial Results and Recent Business HighlightsMarch 12, 2025 | globenewswire.comUPB Upstream Bio, Inc.March 8, 2025 | seekingalpha.comPiper Sandler Remains a Buy on Upstream Bio, Inc. (UPB)March 4, 2025 | markets.businessinsider.comUpstream Bio to Present at Upcoming March Investor ConferencesFebruary 25, 2025 | globenewswire.comUpstream Bio, Inc. (UPB)January 25, 2025 | ca.finance.yahoo.comSee More Headlines UPB Stock Analysis - Frequently Asked Questions How have UPB shares performed this year? Upstream Bio's stock was trading at $16.44 on January 1st, 2025. Since then, UPB shares have decreased by 63.1% and is now trading at $6.07. View the best growth stocks for 2025 here. When did Upstream Bio IPO? Upstream Bio (UPB) raised $200 million in an initial public offering (IPO) on Friday, October 11th 2024. The company issued 12,500,000 shares at a price of $15.00-$17.00 per share. JPMorgan, TD Cowen, Piper Sandler and William Blair acted as the underwriters for the IPO. When does the company's lock-up period expire? Upstream Bio's lock-up period expires on Wednesday, April 9th. Upstream Bio had issued 15,000,000 shares in its public offering on October 11th. The total size of the offering was $255,000,000 based on an initial share price of $17.00. After the expiration of the company's lock-up period, major shareholders and company insiders will be able to sell their shares of the company. How do I buy shares of Upstream Bio? Shares of UPB stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. Company Calendar Today4/08/2025Next Earnings (Estimated)6/11/2025Fiscal Year End12/31/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry Pharmaceutical preparations Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:UPB Previous SymbolNASDAQ:UPB CIK2022626 Webupstreambio.com Phone(781) 208-2466FaxN/AEmployees38Year FoundedN/APrice Target and Rating Average Stock Price Target$56.50 High Stock Price Target$75.00 Low Stock Price Target$38.00 Potential Upside/Downside+830.8%Consensus RatingBuy Rating Score (0-4)3.00 Research Coverage4 Analysts Profitability EPS (Most Recent Fiscal Year)N/A Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet IncomeN/A Net MarginsN/A Pretax MarginN/A Return on EquityN/A Return on AssetsN/A Debt Debt-to-Equity RatioN/A Current RatioN/A Quick RatioN/A Sales & Book Value Annual Sales$2.37 million Price / Sales137.38 Cash FlowN/A Price / Cash FlowN/A Book ValueN/A Price / BookN/AMiscellaneous Outstanding Shares53,641,000Free FloatN/AMarket Cap$325.60 million OptionableN/A BetaN/A A Guide To High-Short-Interest StocksMarketBeat's analysts have just released their top five short plays for April 2025. 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