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Letter portraitLegal landscapeQuarterYTD

Lake Forest Bank & Trust Company, National Association

Lake Forest, IL · Cert 27589 · Wintrust Financial Corp.

National charter · OCC · 15 affiliate banks · 10 branches (213 in holding)

Q2 2026

$9.3BAssets
$6.9BLoans
$7.1BDeposits
$878.8MEquity
Loan mix
26%RE $1.7B64%C&I $4.1B10%Consumer $0.7BQ3 2024Q2 2026
Deposit mix
76%Interest-bearing $5.4B24%Noninterest $1.7BQ3 2024Q2 2026

Return on Assets (quarter, annualized)

2.26%-20 bps YoY

Net Interest Margin (quarter, annualized)

3.25%-5 bps YoY

Efficiency Ratio (quarter, annualized)

41.32%+148 bps YoY

Tier 1 Leverage Ratio

9.93%+41 bps YoY

NIM

6.05%Q2 ’245.53%Q2 ’255.31%Q2 ’26-7%-1%

Non-interest income vs. expense

2.33%Q2 ’242.22%Q2 ’252.30%Q2 ’26-149%+74%

Discrete quarter, annualized.

MetricQ3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026YoY ΔTrend
Return on Assets2.16%2.06%1.99%2.45%2.19%2.15%1.74%2.26%-20 bps
Net Interest Margin3.29%3.29%3.20%3.30%3.16%3.20%3.18%3.25%-5 bps
Non-Interest Burden0.26%0.28%0.19%-0.05%0.12%0.07%0.22%-0.01%+4 bps
Loan Growth (YoY)8.38%8.23%7.70%9.54%8.52%11.03%11.89%6.21%-333 bps
Nonperforming Loans / Loans0.37%0.34%0.33%0.30%0.33%0.35%0.35%0.34%+4 bps
Allowance / Loansn/an/an/an/an/an/an/an/an/an/a
Tier 1 Leverage Ratio10.13%9.70%9.61%9.52%9.19%9.09%9.57%9.93%+41 bps
Equity / Assetsn/an/an/an/an/an/an/an/an/an/a
Liquid Assets / Assets7.10%6.89%6.58%5.91%5.96%5.72%5.84%5.55%-36 bps