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UPB

Upstream Bio Inc.distress 3/10 · well-funded / low risk
$6.48-2%today-80% from 52w high
upstreambio.com75 employeesFounded 2021Waltham, MABiotechnology
Respiratory 1
Lead: Severe Asthma · est. market ~$22B (approx, global)
Revenue
pre-revenue
Liquidity
$295M
Runway
2.1 yrs
Shares 1y
+1%

Price & events

-79.6% over 6M
$5.92$19.21$32.50Jan 26Apr 26Jul 268.8Mdilution: 424B5 offering (2026-03-26)financing: 8-K material_agreement (2026-03-26)rating: JP Morgan: Overweight → Neutral (2026-06-12)rating: HC Wainwright & Co.: Buy (2026-06-03)rating: Mizuho: Outperform (2026-05-14)rating: Evercore ISI Group: Outperform → In-Line (2026-03-27)
CatalystRating changeDilutionFinancingdashed = today
-1.7%
1D
-10.4%
1W
+2.5%
1M
-32.5%
3M
-78.4%
6M
-43.8%
1Y
2Y
5Y
-70.5%
All

Overview

Market Cap
$352.64M
Volume
19.57K
52 Week Range
$5.92 – $32.60
Total Shares
54.42M
Float Shares
40.62M
Short %
11.63%
% Held by Insiders
14.88%
% Held by Institutions
88.32%
RVOL
0.03x

Pipeline stages · 1 programs

Verekitug
Preclin
Ph1
Ph2
Ph3
Filed
PDUFA
Approved
next 2027-09

Pipeline · 4 trials · 2 upcoming

ReadoutPhaseDrugIndicationEnrollStatus
2027-09
Estimated 50%
readout ~2027-10-16
Phase 2VerekitugSevere Asthmaactive not recruiting
2028-04
Estimated 50%
readout ~2028-05-16
Phase 2VerekitugChronic Obstructive Pulmonary Diseaseactive not recruiting
2025-12-16
Phase 2Verekitug (UPB-101)Severe Asthma479completed
2025-07-07
Phase 2Verekitug (UPB-101)Chronic Rhinosinusitis With Nasal Polyps81completed

Catalyst news & presentations · 1

Approved drugs (0)

  • none — clinical-stage

Capital structure — dilution & financing

Shares out: 54,419,986 · 1 offerings/1y · 0 PIPEs
  • 2026-03-268-Kmaterial_agreement
  • 2026-03-26424B5offering
  • 2025-11-05S-3ASRshelf_registration
  • 2024-11-07SC 13Gstrategic_stake
  • 2024-10-22SC 13Dstrategic_stake
  • 2024-10-18SC 13Gstrategic_stake
  • 2024-10-17SC 13Dstrategic_stake
🔒 Positioning — Pro
Short interest / days-to-cover, insider buys & sells.
Upgrade to Pro
🔒 Top holders — Pro
Institutional ownership + quarter-over-quarter accumulation/trimming.
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Wall St ratings

buy · target $38 (+490% upside) · 8 analysts
  • 2026-06-12JP MorganOverweight → Neutral
  • 2026-06-03HC Wainwright & Co.Buy
  • 2026-05-14MizuhoOutperform
  • 2026-03-27Evercore ISI GroupOutperform → In-Line
  • 2025-12-18MizuhoOutperform
  • 2025-12-02LifeSci CapitalOutperform

Competitors — Severe Asthma

  • GENBGenerate Biomedicines, Inc.$1.7B · D2
  • CNTBConnect Biopharma Holdings Ltd$138M · D6
  • APGEApogee Therapeutics, Inc. · D2
  • AZNASTRAZENECA PLC · D3

Not financial advice. Data: ClinicalTrials.gov, SEC EDGAR, FINRA, Nasdaq, Yahoo.