13 /100
LOW RISK
Score updated Apr 13, 2026

COLB

Columbia Banking System, Inc. — Stock Dilution Tracker

Track COLB 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
2
⚠️ Warrant Exposure
15
🔄Convertible Debt
🌦️ Dilution Forecast
☀️
Clear
No significant dilution signals
0%
No significant dilution signals detected for COLB.
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💹 Market Data
Market Cap$8.56B
Shares Outstanding289.99M
Float293.14M
Cash$2.45B
Debt$4.19B
Short InterestN/A
🏛 Institutional Holdings
QoQ: ↓ 3.6% shares (2025Q4 vs prior)
502 institutional holders · 297.79M shares
#1 VANGUARD GROUP INC 29.68M shares
#2 BlackRock, Inc. 26.72M shares
#3 T. Rowe Price Investment Management, Inc. 20.22M shares
+ 17 more holders Sign up free to view →
📉 Short Interest
Short Interest11.19M
Days to Cover3.5
% of Float3.8%
FINRA data as of Mar 31, 2026
📁 Recent SEC Activity
xbrl XBRL WARRANT Dec 31, 2016
Full SEC filing analysis available with free account
📰 Recent News
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