81 /100
LOW RISK
Score updated Feb 26, 2026
SION
Sionna Therapeutics, Inc.

DilutionScore™ measures dilution risk across 5 factors. Lower scores indicate higher risk of share dilution.

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📊 Score Breakdown
📋 Offering Ability
80
💰 Cash Runway
100
📊 Float Risk
35
⚠️ Warrant Exposure
85
🔄Convertible Debt
💹 Market Data
Market CapN/A
Shares Outstanding44.63M
Float15.41M
CashN/A
DebtN/A
Short InterestN/A
🏛 Institutional Holdings
78 institutional holders · 44.89M shares
#1 RA CAPITAL MANAGEMENT, L.P. 10.45M shares
#2 TPG GP A, LLC 6.74M shares
#3 JPMORGAN CHASE & CO 3.96M shares
+ 17 more holders Sign up free to view →
📉 Short Interest
Short Interest3.05M
Days to Cover9.8
% of Float19.8%
FINRA data as of Jan 15, 2026
📁 Recent SEC Activity
xbrl XBRL CONVERTIBLE Mar 31, 2025
Full SEC filing analysis available with free account
📰 Recent News
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