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Shamrock Bank, National Association

Coalgate, OK · Cert 4236 · Shamrock Bancshares Employee STK Ownership Plan

National charter · OCC · 8 branches

Q2 2026

$501.5MAssets
$326.8MLoans
$452.9MDeposits
$45.4MEquity
Loan mix
90%RE $269.7M5%C&I $14.0M6%Consumer $17.2MQ2 2025Q2 2026
Deposit mix
68%Interest-bearing $307.0M32%Noninterest $145.9MQ2 2025Q2 2026

NIM

4.81%Q2 ’245.22%Q2 ’255.45%Q2 ’26+6%+12%

Non-interest income vs. expense

2.71%Q2 ’242.74%Q2 ’252.71%Q2 ’26+2%-2%

Financial Results

Return on Assets (YTD, annualized)

1.38%+39 bps YoY

Net Interest Margin (YTD, annualized)

3.86%+41 bps YoY

Efficiency Ratio (YTD, annualized)

60.95%-713 bps YoY

Tier 1 Leverage Ratio

10.79%+53 bps YoY

Year to date, annualized, through each quarter.

MetricQ2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Return on Assets0.99%0.99%1.05%1.26%1.38%+39 bps
Net Interest Margin3.44%3.46%3.53%3.81%3.86%+41 bps
Non-Interest Burden2.16%2.10%2.11%2.22%2.12%-4 bps
Loan Growth (YoY)15.99%16.54%15.07%10.60%8.06%-793 bps
Nonperforming Loans / Loans0.03%0.05%0.29%0.29%0.29%+26 bps
Allowance / Loans1.22%1.30%1.26%1.28%1.27%+5 bps
Tier 1 Leverage Ratio10.27%10.35%9.80%10.41%10.79%+53 bps
Equity / Assets7.77%8.25%8.10%8.52%9.06%+129 bps
Liquid Assets / Assets4.98%4.51%1.15%1.13%1.24%-374 bps