7.07
price up icon2.32%   0.16
 
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Upstream Bio Inc stock is traded at $7.07, with a volume of 688.25K. It is up +2.32% in the last 24 hours and down -0.98% over the past month. Upstream Bio Inc is a clinical-stage biotechnology company developing treatments for inflammatory diseases, with an initial focus on severe respiratory disorders. It is developing verekitug, the known antagonist currently in clinical development that targets the receptor for Thymic Stromal Lymphopoietin (TSLP), a cytokine that is a clinically validated driver of inflammatory response positioned upstream of multiple signaling cascades that affect a variety of immune-mediated diseases. Verekitug has advanced into three separate world-wide, placebo-controlled, randomized Phase 2 clinical trials, two completed in chronic rhinosinusitis with nasal polyps (CRSwNP) and severe asthma, and one ongoing in chronic obstructive pulmonary disease (COPD).
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Previous Close:
$6.91
Open:
$6.95
24h Volume:
688.25K
Relative Volume:
1.12
Market Cap:
$387.23M
Revenue:
$3.32M
Net Income/Loss:
$-156.76M
P/E Ratio:
-2.4363
EPS:
-2.9019
Net Cash Flow:
$-140.13M
1W Performance:
-2.48%
1M Performance:
-0.98%
6M Performance:
-19.20%
1Y Performance:
-62.03%
1-Day Range:
Value
$6.80
$7.14
1-Week Range:
Value
$6.80
$7.70
52-Week Range:
Value
$5.85
$33.68

Upstream Bio Inc Stock (UPB) Company Profile

Name
Name
Upstream Bio Inc
Name
Phone
781-208-2466
Name
Address
890 WINTER STREET, SUITE 200, WALTHAM
Name
Employee
75
Name
Twitter
Name
Next Earnings Date
2026-08-05
Name
Latest SEC Filings
Name
UPB's Discussions on Twitter

Compare UPB vs VRTX, REGN, ARGX, RVMD, ONC

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
UPB icon
UPB
Upstream Bio Inc
7.07 378.47M 3.32M -156.76M -140.13M -2.9019
VRTX icon
VRTX
Vertex Pharmaceuticals Inc
505.75 133.25B 12.34B 4.34B 3.71B 16.87
REGN icon
REGN
Regeneron Pharmaceuticals Inc
803.48 82.16B 14.92B 4.42B 3.79B 41.04
ARGX icon
ARGX
Argen X Se Adr
851.29 54.80B 4.16B 1.29B 734.26M 19.58
RVMD icon
RVMD
Revolution Medicines Inc
203.71 43.99B 742.00K -1.37B -1.07B -7.0731
ONC icon
ONC
Beone Medicines Ltd Adr
347.48 40.62B 5.76B 514.49M 1.10B 4.4813

Upstream Bio Inc Stock (UPB) Upgrades & Downgrades

Date Action Analyst Rating Change
Mar-27-26 Downgrade Evercore ISI Outperform → In-line
Dec-18-25 Initiated Mizuho Outperform
Nov-18-25 Initiated Evercore ISI Outperform
Oct-14-25 Initiated Truist Buy
Nov-05-24 Initiated JP Morgan Overweight
Nov-05-24 Initiated Piper Sandler Overweight
Nov-05-24 Initiated TD Cowen Buy
Nov-05-24 Initiated William Blair Outperform
View All

Upstream Bio Inc Stock (UPB) Latest News

pulisher
01:49 AM

Upstream Bio (NASDAQ:UPB) Lowered to "Strong Sell" Rating by Wall Street Zen - MarketBeat

01:49 AM
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Aug 14, 2026

Upstream Bio (NASDAQ:UPB) Given New $9.00 Price Target at JPMorgan Chase & Co. - MarketBeat

Aug 14, 2026
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Aug 14, 2026

Q3 EPS Estimates for Upstream Bio Decreased by HC Wainwright - MarketBeat

Aug 14, 2026
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Aug 13, 2026

Marie Sanchirico takes charge of Medical Affairs at Upstream Bio, Inc. to drive physician engagement - Traders Union

Aug 13, 2026
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Aug 13, 2026

Upstream Bio, Inc. (NASDAQ: UPB) Share Price, UPB Stock News, UPB Share Price & Updates - Kalkine

Aug 13, 2026
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Aug 13, 2026

Truist Financial Maintains UpStream Bio(UPB.US) With Buy Rating, Maintains Target Price $25 - Moomoo

Aug 13, 2026
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Aug 13, 2026

Why Did UPB Stock Plunge 40% Today? - Stocktwits

Aug 13, 2026
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Aug 12, 2026

A Quick Look at Today's Ratings for UpStream Bio(UPB.US), With a Forecast Between $19 to $36 - Moomoo

Aug 12, 2026
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Aug 11, 2026

Truist Financial Maintains UpStream Bio(UPB.US) With Buy Rating, Cuts Target Price to $25 - Moomoo

Aug 11, 2026
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Aug 11, 2026

Upstream Bio Targets Q1 2027 Start for Phase - Minichart

Aug 11, 2026
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Aug 11, 2026

Upstream Bio (NASDAQ:UPB) Announces Quarterly Earnings Results, Beats Expectations By $0.05 EPS - MarketBeat

Aug 11, 2026
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Aug 11, 2026

Upstream Bio, Inc. (UPB) Reports Q2 Loss, Tops Revenue Estimates - Yahoo Finance

Aug 11, 2026
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Aug 11, 2026

UPB: Verekitug demonstrated robust efficacy and safety, advancing to Phase 3 for severe asthma and CRSWNP - TradingView

Aug 11, 2026
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Aug 11, 2026

Upstream Bio posts corporate presentation highlighting verekitug Phase 3 plans in severe asthma, CRSwNP - Bitget

Aug 11, 2026
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Aug 11, 2026

Pstream Bio stock rises 2.6% after Q2 results and pipeline update - Traders Union

Aug 11, 2026
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Aug 11, 2026

Form 8K Upstream Bio Inc For: 11 August By Investing.com - Investing.com Canada

Aug 11, 2026
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Aug 11, 2026

Upstream Bio, Inc. 2Q 2026: Revenue $0.8M, EPS $(0.73) — 10-Q Summary - TradingView

Aug 11, 2026
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Aug 11, 2026

Upstream Bio (UPB) deepens R&D spend but ends quarter with $261M cash - Stock Titan

Aug 11, 2026
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Aug 11, 2026

Upstream Bio Q2 net loss narrows slightly on lower R&D costs - TradingView

Aug 11, 2026
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Aug 11, 2026

Upstream Bio reports Q2 2026 net loss $39.7M, cash and short-term investments $261.3M - TradingView

Aug 11, 2026
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Aug 11, 2026

Upstream Bio Posts $39.7 Million Q2 Net Loss as Trials Advance - quiverquant.com

Aug 11, 2026
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Aug 11, 2026

Upstream Bio, Inc. sets Phase 3 trial for sever asthma and CRSwNP in Q1 2027 - Traders Union

Aug 11, 2026
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Aug 11, 2026

Upstream Bio (NASDAQ: UPB) reports Q2 2026 loss and advances Phase 3 plans - Stock Titan

Aug 11, 2026
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Aug 11, 2026

Upstream Bio Reports Second Quarter 2026 Financial Results and Highlights Continued Progress - WBOC TV

Aug 11, 2026
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Aug 11, 2026

Upstream Bio Inc (UPB) Earnings Forecast: Future EPS & Revenue Growth Estimates - tradingkey.com

Aug 11, 2026
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Aug 07, 2026

Upstream Bio Inc (UPB) Stock News Today - tradingkey.com

Aug 07, 2026
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Aug 07, 2026

Upstream Bio, Inc. (UPB) Stock Analysis: A Hidden Gem in Biotechnology with a 456% Potential Upside - DirectorsTalk Interviews

Aug 07, 2026
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Aug 06, 2026

Arrowstreet Capital Limited Partnership Buys New Holdings in Upstream Bio, Inc. $UPB - MarketBeat

Aug 06, 2026
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Aug 05, 2026

BlackRock, Inc. Trims Stake in Upstream Bio Inc (UPB) Amid Clini - GuruFocus

Aug 05, 2026
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Jul 31, 2026

Upstream Bio, Inc. (NASDAQ:UPB) Receives Average Recommendation of "Hold" from Analysts - MarketBeat

Jul 31, 2026
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Jul 30, 2026

Upstream Bio (UPB) Gains Ground: Testing Key Resistance Levels After 2.5% AdvanceBox Spread - dars.gov.et

Jul 30, 2026
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Jul 29, 2026

Upstream Bio (UPB) Expected to Release Quarterly Earnings on Wednesday - MarketBeat

Jul 29, 2026
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Jul 27, 2026

Upstream Bio Inc (UPB) Risk Assessment: Volatility, Financial Risk & Investment Risk - TradingKey

Jul 27, 2026
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Jul 27, 2026

Upstream Bio Inc (UPB) Cash Flow - TradingKey

Jul 27, 2026
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Jul 27, 2026

UPB|Upstream Bio Inc|Price:6.780|Chg%:+0.360 - TradingKey

Jul 27, 2026
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Jul 27, 2026

UPB|Upstream Bio Inc|Price:6.400|Chg%:-0.010 - TradingKey

Jul 27, 2026
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Jul 27, 2026

Upstream Bio Inc (UPB) Financial Health: Profitability & Balance Sheet Analysis - TradingKey

Jul 27, 2026
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Jul 27, 2026

Upstream Bio Inc (UPB) Revenue Breakdown: Business Segments, Regional Revenue & Profit Contribution - TradingKey

Jul 27, 2026
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Jul 27, 2026

Upstream Bio Inc (UPB) Balance Sheet - TradingKey

Jul 27, 2026
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Jul 26, 2026

Upstream Bio Inc (UPB) Shareholder Structure: Major Shareholders & Institutional Holdings - TradingKey

Jul 26, 2026
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Jul 26, 2026

UPB|Upstream Bio Inc|Price:7.450|Chg%:+0.200 - TradingKey

Jul 26, 2026
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Jul 26, 2026

Upstream Bio Inc. (UPB) Holds Steady Near Support as Traders Eye Resistance BreakoutHigh Yield Stocks - dars.gov.et

Jul 26, 2026
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Jul 25, 2026

Upstream Bio Inc (UPB) Income Statement - tradingkey.com

Jul 25, 2026
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Jul 24, 2026

Upstream Bio, Inc. Revenue Breakdown – NASDAQ:UPB - TradingView

Jul 24, 2026
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Jul 24, 2026

Hsbc Holdings PLC Makes New $5.76 Million Investment in Upstream Bio, Inc. $UPB - MarketBeat

Jul 24, 2026
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Jul 23, 2026

Decheng Capital LLC Sells 418,210 Shares of Upstream Bio, Inc. $UPB - MarketBeat

Jul 23, 2026
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Jul 22, 2026

SEB Asset Management AB Buys New Stake in Upstream Bio, Inc. $UPB - MarketBeat

Jul 22, 2026
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Jul 20, 2026

Enterprise value to revenue forward of Upstream Bio, Inc. – NASDAQ:UPB - TradingView

Jul 20, 2026
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Jul 16, 2026

ETFs Investing in Upstream Bio, Inc. Stocks - TradingView

Jul 16, 2026
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Jul 16, 2026

Upstream Bio Inc. (UPB) Q1 2026 Earnings: Narrower-than-expected loss highlights cost disciplineEarnings Stability Report - dars.gov.et

Jul 16, 2026
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Jul 14, 2026

Upstream Bio, Inc. (UPB) Upgraded to Buy: What Does It Mean for the Stock? - Yahoo Finance

Jul 14, 2026

Upstream Bio Inc Stock (UPB) Financials Data

Revenue

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Net Income

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Cash Flow

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EPS

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$63.32
price down icon 0.52%
$58.60
price up icon 0.07%
$36.20
price down icon 0.22%
$123.74
price down icon 2.05%
$228.65
price up icon 0.67%
ONC ONC
$347.48
price down icon 2.40%
Cap:     |  Volume (24h):