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Thumb Bank & Trust

Pigeon, MI · Cert 14513 · Thumb Bcorp Employee STK Ownership Plan

State charter, Fed member · FED · 13 branches

Q2 2026

$673.3MAssets
$418.6MLoans
$595.8MDeposits
$64.2MEquity
Loan mix
86%RE $282.8M10%C&I $31.2M4%Consumer $13.9MQ2 2025Q2 2026
Deposit mix
70%Interest-bearing $419.6M30%Noninterest $176.2MQ2 2025Q2 2026

NIM

4.64%Q2 ’245.00%Q2 ’255.10%Q2 ’26+21%+6%

Non-interest income vs. expense

2.56%Q2 ’242.71%Q2 ’252.74%Q2 ’26+11%-1%

Financial Results

Return on Assets (YTD, annualized)

1.65%+22 bps YoY

Net Interest Margin (YTD, annualized)

4.29%+24 bps YoY

Efficiency Ratio (YTD, annualized)

54.31%-183 bps YoY

Tier 1 Leverage Ratio

9.44%+16 bps YoY

Year to date, annualized, through each quarter.

MetricQ2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Return on Assets1.43%1.47%1.45%1.63%1.65%+22 bps
Net Interest Margin4.05%4.10%4.08%4.18%4.29%+24 bps
Non-Interest Burden2.19%2.21%2.23%2.11%2.17%-1 bps
Loan Growth (YoY)11.36%8.90%10.96%6.21%15.84%+448 bps
Nonperforming Loans / Loans0.04%0.04%0.03%0.03%0.03%-1 bps
Allowance / Loans1.15%1.14%1.10%1.14%1.06%-10 bps
Tier 1 Leverage Ratio9.29%9.40%9.53%9.18%9.44%+16 bps
Equity / Assets9.25%9.58%9.65%9.28%9.53%+28 bps
Liquid Assets / Assets10.57%12.65%11.31%13.24%6.12%-446 bps