SEC Form 4 · accession 0001628280-26-057693
WESTERN ALLIANCE BANCORPORATION · WAL
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Timothy W Boothe
Officer — Chief Administration Officer
Period of report
Aug 15, 2026
Accepted (ET)
Aug 18, 2026 · 4:27 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001212545
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1,F2 | Aug 15, 2026 | M | 97 | $0.00 | A | 65,514 | D | |
| Common Stock | Aug 15, 2026 | D | 97 | $82.32 | D | 65,417 | D | |
| Common StockF3,F2 | Aug 15, 2026 | M | 69 | $0.00 | A | 65,486 | D | |
| Common Stock | Aug 15, 2026 | D | 69 | $82.32 | D | 65,417 | D | |
| Common StockF4,F2 | Aug 15, 2026 | M | 69 | $0.00 | A | 65,486 | D | |
| Common Stock | Aug 15, 2026 | D | 69 | $82.32 | D | 65,417 | D | |
| Common Stock | holding | — | — | — | 325 | I | Alvina Boothe (spouse) |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cash Settled Restricted Stock UnitsF2,F1 | — | Aug 15, 2026 | M | 97 | D | — | — | Common Stock | 97 | 585 | D |
| Cash Settled Restricted Stock UnitsF2,F3 | — | Aug 15, 2026 | M | 69 | D | — | — | Common Stock | 69 | 1,241 | D |
| Cash Settled Restricted Stock UnitsF2,F4 | — | Aug 15, 2026 | M | 69 | D | — | — | Common Stock | 69 | 2,055 | D |
Explanation of responses
- F1These 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.
- F2Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.
- F3These 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.
- F4These 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 2026 and ending February 2029.