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Columbia Bank

Lake Oswego, OR · Cert 17266 · Columbia Banking System Inc.

State charter, non-member · FDIC · 360 branches

Q2 2026

$65.4BAssets
$47.2BLoans
$52.2BDeposits
$7.8BEquity
Loan mix
83%RE $36.1B17%C&I $7.5B0%Consumer $0.1BQ3 2024Q2 2026
Deposit mix
67%Interest-bearing $34.8B33%Noninterest $17.4BQ3 2024Q2 2026

Return on Assets (YTD, annualized)

1.25%+27 bps YoY

Net Interest Margin (YTD, annualized)

3.75%+23 bps YoY

Efficiency Ratio (YTD, annualized)

50.16%-515 bps YoY

Tier 1 Leverage Ratio

9.68%+49 bps YoY

NIM

5.27%Q2 ’245.09%Q2 ’254.94%Q2 ’26+3%+6%

Non-interest income vs. expense

2.15%Q2 ’242.37%Q2 ’252.32%Q2 ’26+5%-4%

Year to date, annualized, through each quarter.

MetricQ3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Return on Assets1.06%1.09%0.72%0.98%0.85%1.00%1.19%1.25%+27 bps
Net Interest Margin3.44%3.49%3.44%3.53%3.40%3.12%3.74%3.75%+23 bps
Non-Interest Burden1.74%1.73%2.13%1.89%1.89%1.68%1.88%1.82%-8 bps
Loan Growth (YoY)0.91%0.75%-0.02%-0.17%29.90%27.25%26.80%25.26%+2,543 bps
Nonperforming Loans / Loans0.45%0.45%0.47%0.48%0.41%0.42%0.55%0.57%+9 bps
Allowance / Loans1.12%1.12%1.12%1.12%0.97%0.97%0.96%0.97%-15 bps
Tier 1 Leverage Ratio8.72%8.97%9.02%9.19%11.43%9.70%9.72%9.68%+49 bps
Equity / Assets10.84%10.62%10.85%10.96%11.99%12.18%12.07%12.00%+104 bps
Liquid Assets / Assets2.93%2.68%2.88%2.57%2.71%2.82%2.33%1.74%-83 bps