11 /100
LOW RISK
Score updated Apr 13, 2026

SPRO

Spero Therapeutics, Inc. — Stock Dilution Tracker

Track SPRO 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
7
⚠️ Warrant Exposure
15
🔄Convertible Debt
🌦️ Dilution Forecast
☀️
Clear
No significant dilution signals
7%
🔄 Reverse Split 15%
• 52-week low $0.57 has breached $1
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💹 Market Data
Market Cap$154.57M
Shares Outstanding57.89M
Float47.33M
Cash$40.27M
Debt$2.90M
Short InterestN/A
🏛 Institutional Holdings
QoQ: ↑ 87.5% shares (2025Q4 vs prior)
56 institutional holders · 21.38M shares
#1 GSK plc 9.19M shares
#2 Pfizer Inc 2.36M shares
#3 VANGUARD GROUP INC 2.08M shares
+ 17 more holders Sign up free to view →
📉 Short Interest
Short Interest605.3K
Days to Cover1.9
% of Float1.3%
FINRA data as of Mar 31, 2026
📁 Recent SEC Activity
xbrl XBRL CONVERTIBLE Dec 31, 2022
Full SEC filing analysis available with free account
📰 Recent News
No recent news
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