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Letter portraitLegal landscapeQuarterYTD

American Bank, National Association

Corpus Christi, TX · Cert 20241

FDIC · 18 branches

Q4 2025

$2.5BAssets
$1.9BLoans
$2.3BDeposits
$211.2MEquity
Loan mix
71%RE $1.3B28%C&I $0.5B1%Consumer $0.0BQ4 2024Q4 2025
Deposit mix
73%Interest-bearing $1.7B27%Noninterest $0.6BQ4 2024Q4 2025

NIM

4.75%Q4 ’235.10%Q4 ’245.19%Q4 ’25-6%+7%

Non-interest income vs. expense

2.92%Q4 ’232.91%Q4 ’244.16%Q4 ’25-17%+92%

Financial Results

Return on Assets (YTD, annualized)

-0.84%-203 bps YoY

Net Interest Margin (YTD, annualized)

3.79%+25 bps YoY

Efficiency Ratio (YTD, annualized)

96.77%+3,301 bps YoY

Tier 1 Leverage Ratio

7.12%-297 bps YoY

Year to date, annualized, through each quarter.

MetricQ4 2024Q1 2025Q2 2025Q3 2025Q4 2025YoY ΔTrend
Return on Assets1.19%0.88%0.84%0.94%-0.84%-203 bps
Net Interest Margin3.54%3.71%3.75%3.78%3.79%+25 bps
Non-Interest Burden1.89%2.33%2.43%2.37%3.63%+174 bps
Loan Growth (YoY)0.73%2.76%7.11%12.08%10.68%+994 bps
Nonperforming Loans / Loans0.34%0.29%0.27%0.27%0.24%-11 bps
Allowance / Loans1.05%1.05%1.06%1.05%1.05%0 bps
Tier 1 Leverage Ratio10.10%9.64%9.56%9.58%7.12%-297 bps
Equity / Assets9.75%9.36%9.36%9.77%8.43%-133 bps
Liquid Assets / Assets9.03%8.01%7.52%5.91%8.65%-38 bps