UPB

Upstream Bio, Inc.
NASDAQHEALTHCAREBIOTECHNOLOGY

Key Statistics

Market Cap
$427.74M
P/E Ratio
EPS
$-3.08
Beta
52W High
$33.68
52W Low
$5.85
50-Day MA
$7.83
200-Day MA
$16.97
Dividend Yield
Profit Margin
0.00%
Forward P/E
PEG Ratio

About Upstream Bio, Inc.

Upstream Bio, Inc., a clinical-stage biotechnology company, develops treatments for inflammatory diseases that focuses on severe respiratory disorders. The company is headquartered in Waltham, Massachusetts.

Official WebsiteUSAFY End: December

Fundamentals

Revenue (TTM)$3.32M
Gross Profit (TTM)$3.32M
EBITDA$-171.77M
Operating Margin-4218.00%
Return on Equity-41.80%
Return on Assets-27.80%
Revenue/Share (TTM)$0.06
Book Value$5.59
Price-to-Book1.34
Price-to-Sales (TTM)128.76
EV/Revenue34.44
EV/EBITDA
Quarterly Earnings Growth (YoY)0.00%
Quarterly Revenue Growth (YoY)82.70%
Shares Outstanding$54.42M
Float$35.02M
% Insiders14.88%
% Institutions89.54%

Historical Volatility

HV 10-Day
42.48%
HV 20-Day
51.38%
HV 30-Day
65.56%
HV 60-Day
58.83%
HV Rank

Volatility is currently contracting

Analyst Ratings

Consensus ($38.25 target)
2
Strong Buy
5
Buy
1
Hold

Latest News

Upstream Bio to Present at the Goldman Sachs 47th Annual Global Healthcare Conference

WALTHAM, Mass., June 03, 2026 (GLOBE NEWSWIRE) -- Upstream Bio, Inc. (Nasdaq: UPB), a clinical-stage company developing treatments for inflammatory diseases, with an initial focus on severe respiratory disorders, today announced that Rand Sutherland, MD, Chief Executive Officer of Upstream Bio, will participate in a fireside chat at the Goldman Sachs 47th Annual Global Healthcare Conference on Wednesday, June 10, 2026, at 10:40 a.m.

GlobeNewsWire6/3/2026Neutral
Upstream Bio: The Reset Is The Opportunity, Initiating At Buy

I am initiating a Buy rating on Verekitug, the lead asset of Upstream Bio, a small-cap biotech trading at an enterprise value under $200M. Verekitug's quarterly dosing and differentiated TSLPR mechanism offer competitive efficacy in severe asthma and CRSwNP, with strong phase 2 data supporting further development. UPB's key catalysts include FDA interactions, phase 3 trial initiations in 2027, and a COPD phase 2 readout, all of which could drive significant re-rating.

Seeking Alpha5/29/2026Positive
Upstream Bio Reports First Quarter 2026 Financial Results and Recent Business Highlights

– Company rapidly advancing Phase 3 programs designed to deliver best-in-class efficacy with convenient quarterly dosing in severe asthma and CRSwNP – – End-of-Phase 2 meetings with FDA planned for mid-2026; Phase 3 initiations in both indications expected in Q1 2027 – – Phase 2 VENTURE trial in COPD ongoing; Company to cap further enrollment; data now expected in the second half of 2027 – – Upcoming data presentations at ATS and EAACI to further elaborate the clinical profile of verekitug – WALTHAM, Mass., May 13, 2026 (GLOBE NEWSWIRE) -- Upstream Bio, Inc. (Nasdaq: UPB), a clinical-stage company developing treatments for inflammatory diseases, with an initial focus on severe respiratory disorders, today reported financial results for the first quarter ended March 31, 2026, and highlighted its continued progress in developing verekitug to deliver potential best-in-class efficacy with quarterly dosing across the Company's three target indications: severe asthma, chronic rhinosinusitis with nasal polyps (CRSwNP), and chronic obstructive pulmonary disease (COPD).

GlobeNewsWire5/13/2026Neutral
Upstream Bio to Present New Data from Phase 2 VIBRANT Trial of Verekitug at the ATS 2026 International Conference

WALTHAM, Mass., April 17, 2026 (GLOBE NEWSWIRE) -- Upstream Bio, Inc.  (Nasdaq: UPB), a clinical-stage company developing treatments for inflammatory diseases, with an initial focus on severe respiratory disorders, today announced two upcoming poster presentations at the American Thoracic Society (ATS) 2026 International Conference in Orlando, FL, on Monday, May 18, 2026. The presentations feature new data from the Phase 2 VIBRANT trial evaluating verekitug, the only known antagonist to the thymic stromal lymphopoietin (TSLP) receptor currently in clinical development, in chronic rhinosinusitis with nasal polyps (CRSwNP). The data to be presented include the clinical effect of verekitug in participants with CRSwNP and comorbid asthma, as well as its impact on nasal and blood biomarkers.

GlobeNewsWire4/17/2026Neutral
Upstream Bio Highlights Phase 3 Development Strategy for Verekitug and Reports Fourth Quarter and Full Year 2025 Financial Results

– Company to pursue Phase 3 development strategy designed to deliver best-in-class efficacy with a high-dose quarterly regimen in broad patient populations in both severe asthma and CRSwNP – – Company plans to initiate dosing in Phase 3 trials in both severe asthma and CRSwNP in Q1 2027 – – Reported positive top-line results from Phase 2 VALIANT trial of verekitug in patients with severe asthma in February 2026, demonstrating significant improvements in asthma exacerbations and lung function – – Presented additional analyses from Phase 2 VIBRANT trial at AAAAI, reinforcing verekitug's therapeutic potential in CRSwNP – – Strong cash position of $341.5 million expected to fund planned operations through 2027 – WALTHAM, Mass., March 26, 2026 (GLOBE NEWSWIRE) -- Upstream Bio, Inc. (Nasdaq: UPB), a clinical-stage company developing treatments for inflammatory diseases, with an initial focus on severe respiratory disorders, today reported financial results for the fourth quarter and full year ended December 31, 2025, and highlighted its Phase 3 development strategy for verekitug in severe asthma and chronic rhinosinusitis with nasal polyps (CRSwNP).

GlobeNewsWire3/26/2026Neutral

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Data last updated: 7/9/2026