Upstream Bio, Inc.

Upstream Bio, Inc. (UPB) Market Cap

Upstream Bio, Inc. has a market capitalization of $343.4M.

Price: $6.31

-0.26 (-3.96%)

Market Cap: 343.39M

NASDAQ · time unavailable

CEO: E. Rand Sutherland

Sector: Healthcare

Industry: Biotechnology

IPO Date: 2024-10-11

Website: https://upstreambio.com

Upstream Bio, Inc. (UPB) - Company Information

Market Cap: 343.39M|Sector: Healthcare

Company Profile

Upstream Bio, Inc. is a biotechnology company in the clinical development stage, dedicated to innovating therapies for inflammatory conditions, particularly those affecting the severe respiratory system. Its pipeline notably features verekitug, a monoclonal antibody designed to selectively target and suppress the thymic stromal lymphopoietin receptor. Beyond this, the company is actively developing treatments for severe asthma, chronic rhinosinusitis with nasal polyps, and chronic obstructive pulmonary disease. Established in 2021, Upstream Bio maintains its operational base in Waltham, Massachusetts.

Analyst Sentiment

88%
Strong Buy

From 9 Active Polls

1Y Forecast: $15.00

▲ +137.7% Potential Upside

Consensus Target Metrics

Low Bound

$15

Median

$15

High Bound

$15

Average

$15

Price & Moving Averages

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🎯 Wall Street Analyst Intelligence Report

1-Year structural target targets, chart projections, and sentiment maps.

Average 1Y Target
$15.00
▲ +137.72% Upside
Low Target
$15.00
138% Risk
Median Target
$15.00
138% Mid
High Target
$15.00
138% Max
Consensus
Hold
1 / 3 Buys

Consensus Trend Projection

Trailing closures vs. 12-month metrics map.

Analyst Vote Distribution

Aggregate institutional coverage sentiment weights.

📊 Historical Valuation Multiples

Real-time Trailing Twelve Month (TTM) momentum side-by-side with discrete quarterly metrics.

Fiscal QuarterTTMQ1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024
Period EndingTrailing 12MMar 31, 2026Dec 31, 2025Sep 30, 2025Jun 30, 2025Mar 31, 2025Dec 31, 2024Sep 30, 2024Jun 30, 2024
Market Cap ($M)3434891,4731,0145903288441,1301,130
Enterprise Value ($M)2483931,3729445472595201,0991,082
Price to Earnings Ratio (P/E)-2.17-3.00-8.59-7.46-3.71-3.00-10.02-13.41-14.47
Price/Earnings-to-Growth Ratio (PEG)-0.05-0.06-10.14-0.71
Price to Sales Ratio (P/S)103.37472.912204.421485.27630.10579.751376.931860.822214.74
Price to Book Ratio (P/B)1.131.614.332.681.440.741.80-7.05-7.70
Price to Free Cash Flow Ratio (P/FCF)-2.45-10.22-48.00-45.71-15.03-7.97-42.64-79.05-140.56
Enterprise Value to Sales (EV/Sales)380.452054.261381.69583.25456.76848.291809.742121.92
Enterprise Value to EBITDA (EV/EBITDA)-1.58-9.70-32.36-28.00-13.69-9.50-24.54-68.75-73.79
Debt to Equity Ratio0.610.000.000.000.000.000.00-0.01

📘 Full Research Report

ℹ️

AI-Generated Research: This report is for informational purposes only.

📘 UPSTREAM BIO INC (UPB) — Investment Overview

🧩 Business Model Overview

UPSTREAM BIO INC (UPB) is structured like a typical biopharmaceutical developer: it creates value by progressing drug candidates through preclinical research and clinical development, then translating differentiated assets into regulated products or partnering arrangements. The value chain is anchored in (1) discovery and target validation, (2) proprietary or controlled development activities that generate competitive know-how, (3) clinical execution needed to secure regulatory acceptance, and (4) downstream manufacturing readiness and commercialization (or licensing/royalty monetization via larger pharmaceutical partners).

Customer “stickiness” in biotech is not contractual switching in the software sense; rather, it is driven by regulatory approval status, clinicians’ familiarity with an approved therapy, and the fact that payers and providers adopt established regimens with constrained substitution once evidence and labeling are in place. For earlier-stage programs, the key “customer” is often the capital market and strategic partners evaluating pipeline de-risking rather than end users.

💰 Revenue Streams & Monetisation Model

Monetisation pathways in this sector generally fall into three buckets:

  • Milestone payments and upfront licensing fees from pharmaceutical partners (often tied to IND/enrollment, interim results, or regulatory submissions).
  • Royalties on future sales if a partnered asset reaches commercialization.
  • Direct product revenue if UPB retains commercialization rights in markets where it can build or contract the necessary commercial and manufacturing capabilities.

Margin structure is dominated by R&D spend and clinical execution costs in the development phase; gross margin becomes less relevant until assets reach commercialization. The primary long-run margin driver is the probability-weighted value of a pipeline that can convert from clinical-stage risk to regulatory and reimbursement certainty.

🧠 Competitive Advantages & Market Positioning

UPB’s competitive positioning should be evaluated through healthcare “hard moat” mechanics—primarily patent protection, regulatory exclusivity, and the credibility of its clinical evidence generation (which reduces competitive headwinds for future partnering and adoption).

Key moat thesis (hard-to-copy advantages):

  • Intangible Asset Moat: an IP portfolio (composition of matter, method-of-use, manufacturing/process) can restrict generic and biosimilar entry timelines or force materially different product claims.
  • Regulatory Moat: the FDA/EMA approval process (and resulting labeling) creates a high barrier to entry for competitors that lack equivalent clinical evidence and safety/efficacy packages.
  • Execution Moat: operational capability in trial design, enrollment, and endpoint selection can compound—strong execution tends to improve partnering optionality and de-risk subsequent studies.

Competitive benchmarking (by development capital and pipeline competition):

  • Gilead Sciences — larger balance sheet and established commercial infrastructure; competes strongly for late-stage assets and strategic partnerships.
  • Amgen — frequently advances multiple platforms and can outspend peers in late-stage trials and commercial scale.
  • Bristol Myers Squibb — robust pipeline depth and partnering muscle, particularly in areas where clinical evidence and regulatory differentiation decide adoption.

UPB’s strategic focus (as a developer) typically contrasts with these larger peers through its emphasis on earlier-stage or narrower-program depth, where differentiation is achieved through IP and clinical evidence rather than scale economics. In practice, UPB competes less on manufacturing scale and more on de-risking pipeline value to attract partnership terms or eventual commercialization rights.

🚀 Multi-Year Growth Drivers

Over a 5–10 year horizon, growth potential in a biopharma developer framework usually depends on pipeline conversion and optionality:

  • Pipeline progression and milestone capture: advancement from preclinical to clinical proof-of-concept and toward registrational studies expands valuation and partnering leverage.
  • Indication expansion: successful results can support label expansion, broader patient populations, or next-line settings (subject to evidence requirements).
  • Platform learning and R&D compounding: improved clinical readouts and manufacturing/process knowledge can lower future marginal development risk.
  • Strategic partnering optionality: differentiated assets with defensible IP can attract licensing deals that reduce cash burn while preserving upside via royalties.

TAM expansion comes from expanding the addressable patient population only when clinical differentiation translates into meaningful outcomes and payer acceptance; otherwise, growth remains constrained to narrow subsets.

⚠ Risk Factors to Monitor

  • Clinical and regulatory risk: safety signals, insufficient efficacy, or failure to meet primary endpoints can permanently impair value.
  • Patent and IP durability: patent challenges, design-around by competitors, and reliance on narrower claim structures can reduce exclusivity.
  • Capital intensity and dilution: biopharma development is cash-consuming; extended timelines or weaker partnering terms can increase financing needs and equity dilution.
  • Competition for evidence-based adoption: even with approval, therapeutic areas can become crowded; payer formularies and clinical guidelines can shift quickly based on comparative outcomes.
  • Manufacturing and supply chain readiness: process changes or scale-up issues can delay studies or compromise product consistency.

📊 Valuation & Market View

The market typically values biopharmaceutical developers through a risk-adjusted probability framework tied to pipeline milestones rather than through simple operating multiples. Traditional metrics (such as EV/EBITDA or P/E) are often less informative at early stages due to limited revenue and lumpy cash flows.

Value tends to move with:

  • De-risking events (clear efficacy signals, safety profile improvements, or favorable endpoint interpretations).
  • Regulatory clarity (alignment on study designs, acceptance of protocols, and pathway confidence).
  • Capital structure and runway (ability to fund trials without excessive dilution).
  • Quality of IP and exclusivity (breadth of patent coverage and likelihood of surviving challenges).

🔍 Investment Takeaway

UPSTREAM BIO INC is best viewed as an intellectual-property and clinical-evidence compounder: the long-term investment case depends on turning pipeline differentiation into regulatory approvals with durable exclusivity. The core “moat” is not scale; it is the defensibility of IP, the barriers created by regulatory evidence, and the operational credibility that improves partnering and future trial outcomes. The investment risk is concentrated in clinical success probability and financing needs; diligence should focus on IP durability, trial design discipline, and the plausibility of regulatory and reimbursement acceptance.


⚠ AI-generated — informational only. Validate using filings before investing.

📰 Market News & Coverage

15 Stories Available

Real-time institutional reporting and market updates for UPB.

zacks.com2026-07-14

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

Upstream Bio, Inc. (UPB) has been upgraded to a Zacks Rank #2 (Buy), reflecting growing optimism about the company's earnings prospects. This might drive the stock higher in the near term.

gurufocus.com2026-06-29

Fannie Mae Announces the Results of its Thirty-sixth Reperforming Loan Sale Transaction

Fannie Mae Announces the Results of its Thirty-sixth Reperforming Loan Sale Transaction PR Newswire WASHINGTON,

globenewswire.com2026-06-14

Upstream Bio Presents New Responder Analyses Demonstrating Clinically Meaningful Improvements in CRSwNP in Significant Majority of Participants Treated with Verekitug in the Phase 2 VIBRANT Trial at EAACI 2026

– Verekitug, administered once every three months, led to clinically meaningful improvements in nasal polyp score (NPS) in approximately 80% of participants –

businesswire.com2026-06-12

KBRA Assigns Preliminary Ratings to OBX 2026-AHC2 Trust

NEW YORK--(BUSINESS WIRE)-- #creditratingagency--KBRA assigns preliminary ratings to 65 classes of mortgage pass-through notes from OBX 2026-AHC2 Trust, a prime agency-eligible RMBS transaction sponsored by Onslow Bay Financial LLC, that is fully originated and serviced by AmeriHome Mortgage Company, LLC (AmeriHome). This transaction is comprised of 599 residential mortgages with an aggregate unpaid principal balance (UPB) of approximately $340.0 million as of the June 1, 2026 cut-off date. The underlying collateral.

seekingalpha.com2026-06-10

Upstream Bio, Inc. (UPB) Presents at Goldman Sachs 47th Annual Global Healthcare Conference 2026 Transcript

Upstream Bio, Inc. (UPB) Presents at Goldman Sachs 47th Annual Global Healthcare Conference 2026 Transcript

globenewswire.com2026-06-08

Upstream Bio to Showcase Additional Efficacy Data from the Phase 2 VIBRANT Trial of Verekitug in CRSwNP in Oral Session at EAACI 2026

WALTHAM, Mass., June 08, 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 additional data from its Phase 2 VIBRANT trial of verekitug in patients with chronic rhinosinusitis with nasal polyps (CRSwNP) will be presented in an oral session at the European Academy of Allergy and Clinical Immunology (EAACI) 2026 Congress in Istanbul, Turkey, on Sunday, June 14, 2026.

globenewswire.com2026-06-03

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.

seekingalpha.com2026-05-29

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.

globenewswire.com2026-05-18

Upstream Bio Presents New Data from Phase 2 VIBRANT Trial of Verekitug Demonstrating Improvement in Asthma Symptom Control in Participants with CRSwNP and Comorbid Asthma at the ATS 2026 International Conference

– Verekitug led to statistically significant and clinically meaningful improvement in asthma symptom control as measured by the Asthma Control Questionnaire-6 (ACQ-6) in participants with CRSwNP and comorbid asthma –

zacks.com2026-05-13

Upstream Bio, Inc. (UPB) Reports Q1 Loss, Beats Revenue Estimates

Upstream Bio, Inc. (UPB) came out with a quarterly loss of $0.75 per share versus the Zacks Consensus Estimate of a loss of $0.8. This compares to a loss of $0.51 per share a year ago.

globenewswire.com2026-05-13

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).

globenewswire.com2026-04-17

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.

247wallst.com2026-03-27

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Pre-Market Stock Futures: Futures are trading lower as we prepare to end another up-and-down week, and, as we mentioned before, it all depends on the status of the war with Iran and the price of oil on any given day. Those two items have dictated the direction of stocks, bonds, precious metals, and crypto since... Here Are Friday's Top Wall Street Analyst Research Calls: Brown-Forman, Chord Energy, Emerson Electric, FuboTV, Genmab, Honeywell, Knight-Swift, Wix.Com, and More.

benzinga.com2026-03-26

Upstream Bio Lead Drug Pivotal Trial Plan Follows Strong Phase 2 Data

The company reported a cash position of $341.5 million, expected to fund planned operations through 2027.

globenewswire.com2026-03-26

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).

📊 AI Financial Analysis

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Earnings Data: Q Ending 2026-03-31

"UPB reported Q1 2026 (ended 2026-03-31) revenue of $1.03M and net loss of $40.6M (EPS: -$0.75). Versus Q1 2025, revenue rose from $0.566M to $1.034M (+82.6% YoY), while net income loss improved from -$27.3M to -$40.6M (net loss worsened; i.e., -$13.3M more negative, ~-48.7% YoY in the loss measure). QoQ, revenue increased from $0.668M (Q4 2025) to $1.034M (+54.8%), but net loss modestly improved from -$42.5M (Q4) to -$40.6M (Q1), a ~4.3% improvement. Profitability remains deeply negative. Operating and net margins are highly contracted versus Q4/Q3: operating margin was about -42.2% in Q1 vs -69.1% in Q4, indicating some cost normalization, but the company is still far from sustainable profitability. Cash burn persists: operating cash flow was -$47.9M and free cash flow was -$47.9M. Liquidity is strong on the balance sheet (cash & short-term investments of ~$295M; net debt ~- $95.6M), and total assets increased sequentially to ~$318M, supporting runway despite ongoing losses. Shareholder returns are supported by positive 1-year momentum (+18.65%), but total shareholder return is likely constrained by continued losses and negative operating cash flow (no dividends or buybacks reported). Analyst targets show meaningful upside (consensus $33 vs ~$9.99), but the near-term fundamental risk is high."

Revenue Growth

Neutral

Revenue increased to $1.034M (+54.8% QoQ and +82.6% YoY). Despite small absolute scale, the trajectory is improving.

Profitability

Neutral

Net loss was -$40.6M (EPS -$0.75). Operating margin improved sequentially (-42.2% in Q1 vs -69.1% in Q4) but remains deeply negative; YoY net loss worsened.

Cash Flow Quality

Neutral

Operating cash flow was -$47.9M in Q1 (free cash flow -$47.9M). No dividends; no buybacks. Burn continues despite some liquidity strength.

Leverage & Balance Sheet

Positive

Liquidity is robust: cash & short-term investments ~$295M and net debt ~-$95.6M. Total assets rose to ~$318M, and equity remains positive.

Shareholder Returns

Fair

Market momentum is supportive but not overwhelming: price is up +18.65% over 1 year. No evidence of shareholder yield (dividends/buybacks) in the provided quarter.

Analyst Sentiment & Valuation

Caution

Valuation appears speculative given ongoing losses (P/E not meaningful; price-to-sales extremely high due to small revenue base). However, upside implied by consensus target ($33) vs ~$9.99 current price.

Disclaimer:This analysis is AI-generated for informational purposes only. Accuracy is not guaranteed and this does not constitute financial advice.

Fundamentals Overview

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📋 Official Regulatory 10-K / 10-Q SEC Filings

Direct authenticated documentation links to audited SEC database reports for UPB.

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SEC Filings (UPB)

© 2026 Stock Market Info — Upstream Bio, Inc. (UPB) Financial Profile