Upstream Bio (UPB) News Today $16.73 -0.90 (-5.10%) Closing price 04:00 PM EasternExtended Trading$16.74 +0.00 (+0.03%) As of 05:41 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 Headlines Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOwnershipSEC FilingsTrendsBuy This Stock UPB Latest News All Sources Trusted Sources MarketBeat Barchart Benzinga Bloomberg GlobeNewswire GuruFocus MarketWatch Motley Fool NASDAQ PR Newswire Reuters Seeking Alpha TalkMarkets The Street TipRanks The Wall Street Journal Wall Street Zen Yahoo Finance Source Sentiment refers to the positivity or negativity of each headline according to our language processing algorithm. Sentiment All Sentiments Very Positive Positive Neutral Negative Very Negative Most Recent August 2025 July 2025 June 2025 May 2025 April 2025 March 2025 February 2025 January 2025 December 2024 November 2024 October 2024 September 2024 August 2024 July 2024 June 2024 May 2024 April 2024 March 2024 February 2024 January 2024 December 2023 November 2023 October 2023 September 2023 August 2023 July 2023 June 2023 May 2023 April 2023 March 2023 February 2023 January 2023 December 2022 November 2022 October 2022 September 2022 Time Period Upstream Bio (NASDAQ:UPB) Shares Down 4.8% - Here's What HappenedAugust 20, 2025 | marketbeat.comUpstream Bio Initiates Phase 2 Clinical Trial for COPD Drug, VerekitugAugust 20, 2025 | msn.comUpstream Bio (NASDAQ:UPB) Sees Unusually-High Trading Volume - Here's WhyAugust 12, 2025 | marketbeat.comQ3 EPS Estimates for Upstream Bio Cut by William BlairAugust 9, 2025 | marketbeat.comUpstream Bio Second Quarter 2025 Earnings: Revenues Beat Expectations, EPS LagsAugust 8, 2025 | finance.yahoo.comUpstream Bio (UPB) Q2 R&D Soars 169%August 6, 2025 | fool.comUpstream Bio, Inc. reports Q2 resultsAugust 6, 2025 | seekingalpha.comUpstream Bio Reports Second Quarter 2025 Financial Results and Highlights Continued ProgressAugust 6, 2025 | globenewswire.comUpstream Bio (NASDAQ:UPB) Stock Price Up 8.1% - Still a Buy?July 31, 2025 | marketbeat.comUpstream Bio (UPB) Expected to Announce Quarterly Earnings on TuesdayJuly 29, 2025 | marketbeat.comPromising Outlook for Upstream Bio, Inc. as Verekitug Advances in Inflammatory ConditionsJuly 28, 2025 | tipranks.comPositive Outlook for Upstream Bio, Inc. Driven by Promising Phase II Study of Verekitug in CRSwNP TreatmentJuly 28, 2025 | tipranks.comUpstream Bio Inc. (UPB) Stock Price Today - WSJJuly 25, 2025 | wsj.comUpstream Bio (NASDAQ:UPB) Trading Up 10% - Still a Buy?July 25, 2025 | marketbeat.comUpstream Bio begins phase 2 COPD trial for verekitugJuly 10, 2025 | uk.investing.comUpstream Bio Initiates Phase 2 VENTURE Trial for Verekitug in Moderate-to-Severe COPD, Expanding Its Respiratory PortfolioJuly 8, 2025 | quiverquant.comQUpstream Bio Announces First Patient Dosed in Phase 2 Clinical Trial of Verekitug in Chronic Obstructive Pulmonary Disease (COPD)July 8, 2025 | globenewswire.comUPB Upstream Bio, Inc. - Seeking AlphaJune 28, 2025 | seekingalpha.comUpstream Bio (NASDAQ:UPB) Trading 7.8% Higher - Should You Buy?June 20, 2025 | marketbeat.comUpstream Bio (NASDAQ:UPB) Shares Gap Down - What's Next?June 18, 2025 | marketbeat.comUpstream Bio (NASDAQ:UPB) Trading Down 3.4% - Here's What HappenedJune 16, 2025 | marketbeat.comUpstream Bio, Inc.’s Verekitug: A Promising Contender in the TSLPR Antibody SpaceJune 16, 2025 | tipranks.comUpstream Bio Stock Gets A Boost As New Lung Inflammation Drug Shows Higher PotencyJune 15, 2025 | msn.comUpstream Bio Presents Pharmacology Modeling Data Supporting Verekitug's Potency over Tezepelumab at EAACI CongressJune 15, 2025 | quiverquant.comQTranslational Data Illustrate a Mechanism of Greater Potency with Verekitug, a Novel Antibody Antagonist of the TSLP ReceptorJune 15, 2025 | globenewswire.comUpstream Bio (NASDAQ:UPB) Raised to Hold at Wall Street ZenJune 6, 2025 | marketbeat.comUpstream Bio to Present Mechanistic Insights into Verekitug's Enhanced Potency via TSLP Receptor Targeting at European Academy of Allergy and Clinical Immunology (EAACI) Congress 2025June 5, 2025 | globenewswire.comUpstream Bio (NASDAQ:UPB) Trading Down 3.4% - Should You Sell?June 4, 2025 | marketbeat.comUpstream Bio to Participate in the Goldman Sachs 46th Annual Global Healthcare ConferenceJune 4, 2025 | globenewswire.comUpstream Bio (NASDAQ:UPB) Trading 10.2% Higher - Here's What HappenedJune 3, 2025 | marketbeat.com1,583,154 Shares in Upstream Bio, Inc. (NASDAQ:UPB) Purchased by Wellington Management Group LLPJune 1, 2025 | marketbeat.comJane Street Group LLC Takes Position in Upstream Bio, Inc. (NASDAQ:UPB)May 27, 2025 | marketbeat.comNorthern Trust Corp Makes New Investment in Upstream Bio, Inc. (NASDAQ:UPB)May 27, 2025 | marketbeat.comWoodline Partners LP Buys New Stake in Upstream Bio, Inc. (NASDAQ:UPB)May 25, 2025 | marketbeat.comVR Adviser LLC Takes $37.74 Million Position in Upstream Bio, Inc. (NASDAQ:UPB)May 22, 2025 | marketbeat.comUpstream Bio names new chief technology officerMay 21, 2025 | investing.comUpstream Bio Appoints Stacy Price As CTOMay 21, 2025 | nasdaq.comUpstream Bio, Inc. Appoints Stacy Price as Chief Technology Officer to Lead Expansion of Technical OperationsMay 21, 2025 | nasdaq.comUpstream Bio Appoints Stacy Price as Chief Technology OfficerMay 20, 2025 | globenewswire.comOrbimed Advisors LLC Takes Position in Upstream Bio, Inc. (NASDAQ:UPB)May 15, 2025 | marketbeat.comBalyasny Asset Management L.P. Invests $4.95 Million in Upstream Bio, Inc. (NASDAQ:UPB)May 13, 2025 | marketbeat.comEnavate Sciences GP LLC Acquires Shares of 2,459,703 Upstream Bio, Inc. (NASDAQ:UPB)May 11, 2025 | marketbeat.comQ2 EPS Estimates for Upstream Bio Decreased by William BlairMay 10, 2025 | marketbeat.comDeep Track Capital LP Takes Position in Upstream Bio, Inc. (NASDAQ:UPB)May 9, 2025 | marketbeat.comAlyeska Investment Group L.P. Invests $1.40 Million in Upstream Bio, Inc. (NASDAQ:UPB)May 9, 2025 | marketbeat.comUpstream Bio Advances Verekitug in Clinical TrialsMay 7, 2025 | tipranks.comUpstream Bio Reports First Quarter 2025 Financial Results and Accelerates Guidance on All Clinical ProgramsMay 6, 2025 | globenewswire.comSamsara BioCapital LLC Acquires Shares of 2,217,146 Upstream Bio, Inc. (NASDAQ:UPB)May 2, 2025 | marketbeat.comSoros Fund Management LLC Makes New Investment in Upstream Bio, Inc. (NASDAQ:UPB)May 2, 2025 | marketbeat.comTCG Crossover Management LLC Takes $44.86 Million Position in Upstream Bio, Inc. (NASDAQ:UPB)May 1, 2025 | marketbeat.com Get Upstream Bio News Delivered to You Automatically Sign up to receive the latest news and ratings for UPB and its competitors with MarketBeat's FREE daily newsletter. Email Address UPB Media Mentions By Week UPB Media Sentiment Learn about the media sentiment score. Each headline receives a score ranging from 2 (good news) to -2 (bad news). Our company news sentiment scores track the average news sentiment of articles about each company over the most recent 7 days in order to identify companies that are receiving positive press. UPB News Sentiment▼0.580.70▲Average Medical News Sentiment UPB News Coverage Learn about the media coverage comparison. We track news headlines from hundreds of news outlets and tag them by company. This chart compares the number of articles about this company in the last seven days compared with the average number of articles about this company on a typical week. UPB Articles This Week▼22▲UPB Articles Average Week Get Upstream Bio News Delivered to You Automatically Sign up to receive the latest news and ratings for UPB and its competitors with MarketBeat's FREE daily newsletter. Email Address Related Companies and Tools Related Companies PTGX News APLS News MLTX News MIRM News MTSR News MENS News KYMR News SRRK News AMRX News BHC News Headlines Tools Trending Media MentionsHigh Media Sentiment StocksLive News FeedMarketBeat OriginalsStock Ideas This page (NASDAQ:UPB) was last updated on 8/25/2025 by MarketBeat.com Staff From Our PartnersBONUS GUIDE - Ben Stein Prepares For the Next Financial CrisisWith inflation high, debt soaring, and global tensions rising, a financial storm may be brewing. 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