| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| GIBBONS DALE | Vice Chairman and CFO | C/O WESTERN ALLIANCE BANCORPORATION, ONE E. WASHINGTON STREET, STE 1400, PHOENIX | /s/Jessica Jarvi (Attorney-in-fact) | 30 Oct 2025 | 0001331626 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WAL | Common Stock | Purchase | $308,000 | +4,000 | +1.3% | $77.00 | 300,358 | 30 Oct 2025 | Direct | |
| holding | WAL | Common Stock | 612 | 30 Oct 2025 | 401K Plan | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | WAL | Cash Settled Restricted Stock Units | 4,552 | 30 Oct 2025 | Common Stock | 4,552 | Direct | F2, F3 | ||||||
| holding | WAL | Cash Settled Restricted Stock Units | 5,919 | 30 Oct 2025 | Common Stock | 5,919 | Direct | F2, F4 | ||||||
| holding | WAL | Restricted Stock Units | 24,757 | 30 Oct 2025 | Common Stock | 24,424 | Direct | F5, F6, F7 |
| Id | Content |
|---|---|
| F1 | Reflects shares held in the 401K Plan to include employer match as of 10/16/25. |
| F2 | Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock. |
| F3 | These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2024 and ending February 2027. |
| F4 | These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month during the 36-month period beginning March 2025 and ending February 2028. |
| F5 | Each restricted stock unit represents a contingent right to receive one share of WAL common stock. |
| F6 | The restricted stock units vest upon the Reporting Person's Qualified Retirement from the Company. |
| F7 | The number of restricted stock units beneficially owned by the reporting person includes the reinvestment of WAL's quarterly dividends. |