25 /100
LOW RISK
Score updated Apr 28, 2026

UPB

Upstream Bio, Inc. — Stock Dilution Tracker

Track UPB dilution risk with DilutionWatch's stock tracker. DilutionScore™ measures dilution risk across 5 factors — lower scores indicate higher risk of share dilution.

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📊 Score Breakdown
📋 Offering Ability
20
💰 Cash Runway
0
📊 Float Risk
35
⚠️ Warrant Exposure
15
🔄Convertible Debt
🌦️ Dilution Forecast
🌥️
Advisory
Moderate dilution signals present
20%
🔁 Convertible Conversion 40%
• Significant convertible debt: 20% potential dilution
• Elevated convertible risk (60/100)
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💹 Market Data
Market Cap$506.92M
Shares Outstanding54.42M
Float34.59M
Cash$341.51M
Debt$1.27M
Short InterestN/A
🏛 Institutional Holdings
QoQ: ↑ 14.1% shares (2025Q4 vs prior)
134 institutional holders · 51.41M shares
#1 FMR LLC 7.52M shares
#2 ORBIMED ADVISORS LLC 5.69M shares
#3 BlackRock, Inc. 3.34M shares
+ 17 more holders Sign up free to view →
📉 Short Interest
Short Interest3.02M
Days to Cover5.2
% of Float8.7%
FINRA data as of Apr 15, 2026
📁 Recent SEC Activity
xbrl XBRL CONVERTIBLE Sep 30, 2024
Full SEC filing analysis available with free account
📰 Recent News
No recent news
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🔬 More Research for UPB
📊 UPB FDA Catalyst Timeline & Biotech Grade — BiotechSigns 📡 UPB Signal Convergence & Dark Pool Activity — StonkWhisper

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