Investor Presentaiton

Focused Efforts to Drive Increased Deposit Liquidity Deposit-led growth driving loan-to-deposit ratio to mid-80s poised to lift WAL from top-quintile for largest banks to top-10 Rank Name Insured Deposit % Loan / I Insured / Deposit % L/D Rank Name Insured Deposit % Loan / Deposit % ! Insured/ L/D 1 Cullen/Frost Bankers, Inc. 49% 41% 1.18x 26 Associated Banc-Corp 76% 96% 0.79x| 2 Bank of America Corporation 61% 55% 1.12x 27 PacWest Bancorp 71% 91% 0.78x 3 Simmons First National Corporation 77% 74% 1.04x 28 Truist Financial Corporation 63% 81% 0.78x 4 Commerce Bancshares, Inc. 68% 67% 1.02x 29 South State Corporation 65% 84% 0.77x 5 JPMorgan Chase & Co. 48% 47% 1.01x | 30 Old National Bancorp 70% 91% 0.77x 6 Regions Financial Corporation 75% 76% 0.98x 31 Citizens Financial Group, Inc. 68% 90% 0.76x 7 Prosperity Bancshares, Inc. 70% 72% 0.98x 32 Wintrust Financial Corporation 70% 93% 0.76x 8 United Community Banks, Inc. 76% 78% 0.98x 33 The PNC Financial Services Group, Inc. 55% 75% 0.74x 9 Glacier Bancorp, Inc. 74% 77% 0.96x 34 United Bankshares, Inc. 67% 92% 0.72x 10 First Interstate BancSystem, Inc. 72% 76% 0.95x 35 Columbia Banking System, Inc. 64% 89% 0.72x 11 Popular, Inc. 48% 53% 0.90x 36 Fulton Financial Corporation 69% 97% 0.71x1 12 Cadence Bank 70% 79% 0.89x 37 Bank OZK 67% 99% 0.68x 13 First Hawaiian, Inc. 58% 67% 0.87x 38 New York Community Bancorp, Inc. 66% 97% 0.68x 14 F.N.B. Corporation 76% 90% 0.85x 39 Zions Bancorporation, National Association 55% 81% 0.68x 15 Western Alliance Bancorporation 79% 94% 0.84x 40 Valley National Bancorp 69% 102% 0.67x 16 UMB Financial Corporation 57% 68% 0.83x || 41 M&T Bank Corporation 55% 83% 0.67x 17 Webster Financial Corporation 77% 92% 0.83x 42 U.S. Bancorp 51% 77% 0.66x 18 Synovus Financial Corp. 73% 88% 0.83x 43 BankUnited, Inc. 62% 97% 0.64x 19 Huntington Bancshares Incorporated 69% 83% 0.83x 44 East West Bancorp, Inc. 56% 89% 0.63x 20 Hancock Whitney Corporation 64% 79% 0.81x 45 Comerica Incorporated 53% 85% 0.62x 21 BOK Financial Corporation 56% 70% 0.80x 46 Texas Capital Bancshares, Inc. 55% 91% 0.61x 2222 Pinnacle Financial Partners, Inc. 67% 84% 0.80x 47 First Horizon Corporation 56% 96% 0.59x | 23 Fifth Third Bancorp 60% 75% 0.80x 48 Ameris Bancorp 58% 101% 0.58x 24 Wells Fargo & Company 55% 70% 0.80x 49 Citigroup Inc. 27% 49% 0.56x 25 KeyCorp 66% 83% 0.79x 50 First Citizens BancShares, Inc. Median 53% 99% 0.54x 66% 83% 0.79x WA Western Alliance Bancorporation® Note: Deposit % as of March 31, 2023, except for WAL, which is as of May 12, 2023. Deposit insurance includes direct, collateralized, pass-through, and insured networks WAL Loan-to-Deposit % uses HFI Loans Source: S&P Global Market Intelligence, 1Q23 company earnings presentations, and 1Q23 Call Reports 24

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