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Bank of Mauston

Mauston, WI · Cert 12327 · Mauston Bcorp Inc.

State charter, non-member · FDIC · 6 branches

Q2 2026

$426.7MAssets
$247.8MLoans
$367.7MDeposits
$57.2MEquity
Loan mix
87%RE $211.1M11%C&I $26.1M2%Consumer $4.4MQ2 2025Q2 2026
Deposit mix
87%Interest-bearing $318.1M13%Noninterest $49.6MQ2 2025Q2 2026

NIM

4.66%Q2 ’245.11%Q2 ’255.24%Q2 ’26+31%+5%

Non-interest income vs. expense

1.52%Q2 ’241.61%Q2 ’251.61%Q2 ’26+29%-12%

Financial Results

Return on Assets (quarter, annualized)

2.26%+16 bps YoY

Net Interest Margin (quarter, annualized)

3.67%+17 bps YoY

Efficiency Ratio (quarter, annualized)

35.49%-232 bps YoY

Tier 1 Leverage Ratio

14.75%+62 bps YoY

Discrete quarter, annualized.

MetricQ2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Return on Assets2.10%2.01%2.21%1.78%2.26%+16 bps
Net Interest Margin3.50%3.58%3.09%3.39%3.67%+17 bps
Non-Interest Burden0.86%0.99%0.14%1.10%0.76%-10 bps
Loan Growth (YoY)2.38%3.02%6.12%3.04%1.78%-60 bps
Nonperforming Loans / Loans0.01%0.01%0.01%0.01%0.19%+19 bps
Allowance / Loans1.92%1.94%1.87%1.90%1.88%-4 bps
Tier 1 Leverage Ratio14.13%14.67%14.91%14.32%14.75%+62 bps
Equity / Assets12.88%13.26%12.70%13.22%13.40%+52 bps
Liquid Assets / Assets37.43%38.24%37.83%35.81%32.77%-466 bps