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Mainstreet Bank

Fairfax, VA · Cert 57742 · Mainstreet Bancshares Inc.

State charter, Fed member · FED · 7 branches

Q2 2026

$2.2BAssets
$1.9BLoans
$1.9BDeposits
$279.2MEquity
Loan mix
96%RE $1.8B4%C&I $0.1B0%Consumer $0.0BQ3 2024Q2 2026
Deposit mix
81%Interest-bearing $1.6B19%Noninterest $0.4BQ3 2024Q2 2026

Return on Assets (quarter, annualized)

0.96%+2 bps YoY

Net Interest Margin (quarter, annualized)

3.45%-21 bps YoY

Efficiency Ratio (quarter, annualized)

62.36%-933 bps YoY

Tier 1 Leverage Ratio

12.78%-43 bps YoY

NIM

6.38%Q2 ’246.42%Q2 ’255.80%Q2 ’26+19%-6%

Non-interest income vs. expense

2.41%Q2 ’242.75%Q2 ’252.25%Q2 ’26+15%-19%

Discrete quarter, annualized.

MetricQ3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Return on Assets0.17%-2.79%0.55%0.94%0.95%0.86%0.85%0.96%+2 bps
Net Interest Margin3.10%2.94%3.21%3.67%3.37%3.32%3.35%3.45%-21 bps
Non-Interest Burden2.38%5.87%2.48%2.58%2.20%2.21%2.25%2.09%-49 bps
Loan Growth (YoY)5.70%6.29%5.02%-0.53%0.74%1.70%2.12%9.02%+955 bps
Nonperforming Loans / Loans1.58%1.37%1.36%0.40%1.29%1.69%2.87%3.15%+275 bps
Allowance / Loans1.02%1.06%1.06%1.07%1.04%1.04%1.02%0.99%-8 bps
Tier 1 Leverage Ratio13.98%12.08%12.90%13.21%13.42%13.28%12.81%12.78%-43 bps
Equity / Assets13.14%12.13%12.23%13.04%13.13%12.79%12.42%12.47%-56 bps
Liquid Assets / Assets10.21%8.86%8.74%5.70%5.34%6.65%6.44%3.98%-171 bps