UPB

Upstream Bio, Inc.
NASDAQHEALTHCAREBIOTECHNOLOGY

Key Statistics

Market Cap
$329.17M
P/E Ratio
EPS
$-2.88
Beta
52W High
$33.68
52W Low
$5.77
50-Day MA
$6.93
200-Day MA
$13.89
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)$3.16M
Gross Profit (TTM)$3.16M
EBITDA$-169.78M
Operating Margin-5481.00%
Return on Equity-46.10%
Return on Assets-30.30%
Revenue/Share (TTM)$0.06
Book Value$5.59
Price-to-Book1.23
Price-to-Sales (TTM)104.23
EV/Revenue23.35
EV/EBITDA
Quarterly Earnings Growth (YoY)0.00%
Quarterly Revenue Growth (YoY)-17.50%
Shares Outstanding$54.77M
Float$42.81M
% Insiders14.78%
% Institutions92.51%

Historical Volatility

HV 10-Day
64.04%
HV 20-Day
71.50%
HV 30-Day
65.36%
HV 60-Day
56.57%
HV Rank

Volatility is currently contracting

Analyst Ratings

Consensus ($33.50 target)
1
Strong Buy
6
Buy
2
Hold

Latest News

Upstream Bio Announces Pivotal Phase 3 Development Plans for Verekitug in Both Severe Asthma and CRSwNP

– Following productive FDA discussions, Upstream Bio will study 400 mg of verekitug administered every 12 weeks, versus placebo, in severe asthma and CRSwNP with one pivotal Phase 3 trial in each indication – – The Company's Phase 3 strategy is designed to deliver best-in-class efficacy across both indications by evaluating a high-dose, quarterly regimen of verekitug in broad patient populations – – The Company remains on track to initiate both Phase 3 trials in Q1 2027 – WALTHAM, Mass., Sept. 01, 2026 (GLOBE NEWSWIRE) -- Upstream Bio, Inc. (Nasdaq: UPB), a clinical-stage company developing treatments for severe inflammatory respiratory diseases, today announced its pivotal Phase 3 development plans for verekitug in severe asthma and chronic rhinosinusitis with nasal polyps (CRSwNP).

GlobeNewsWire9/1/2026Neutral
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

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Data last updated: 9/7/2026