Boothe Timothy W 4

4 · WESTERN ALLIANCE BANCORPORATION · Filed Mar 17, 2026

AI-generated summary of this filing

Updated Mar 17, 2026

Western Alliance (WAL) Chief Admin Officer Timothy Boothe Sells Shares

What Happened

Timothy W. Boothe, Chief Administration Officer of Western Alliance Bancorporation (WAL), exercised/converted vested derivative units and immediately disposed of the resulting 235 shares to the issuer on March 15, 2026.
Transactions: converted/acquired 97, 69 and 69 units (total 235) at $0.00 and sold/disposed those 97, 69 and 69 shares at $67.97 each, generating aggregate proceeds of $15,973.

Key Details

Transaction date: 2026-03-15; filing date (Form 4): 2026-03-17.
Prices: disposition price $67.97 per share; acquisition entries recorded at $0.00 (reflecting conversion/settlement of awards).
Counts: 97 + 69 + 69 = 235 units/shares converted and sold; total proceeds $15,973.
Shares owned after the transactions: not specified in the provided filing.
Footnotes: units are economic equivalents of one share (F2) and vest/payable in cash on monthly schedules (F1, F3, F4 describe 36‑month vesting periods beginning Mar 2024, Mar 2025, and Mar 2026).
Filing timeliness: reported two days after the trades (Form 4 filed 2026-03-17 for trades on 2026-03-15).

Context

This appears to be a cash-settlement or immediate sale of vested award units (exercise/conversion followed by disposition to the issuer), not an open‑market purchase. The matching acquisition and disposition counts indicate no net increase in shares held from these entries; instead, the insider converted vested units into cash proceeds.

Form 4

Period: 2026-03-15

Chief Administration Officer

Transactions

Exercise/Conversion
Common Stock
[F1][F2]
2026-03-15+97→ 65,514 total
Disposition to Issuer
Common Stock
2026-03-15$67.97/sh−97$6,593→ 65,417 total
Exercise/Conversion
Common Stock
[F3][F2]
2026-03-15+69→ 65,486 total
Disposition to Issuer
Common Stock
2026-03-15$67.97/sh−69$4,690→ 65,417 total
Exercise/Conversion
Common Stock
[F4][F2]
2026-03-15+69→ 65,486 total
Disposition to Issuer
Common Stock
2026-03-15$67.97/sh−69$4,690→ 65,417 total
Exercise/Conversion
Cash Settled Restricted Stock Units
[F2][F1]
2026-03-15−97→ 1,070 total
→ Common Stock (97 underlying)
Exercise/Conversion
Cash Settled Restricted Stock Units
[F2][F3]
2026-03-15−69→ 1,586 total
→ Common Stock (69 underlying)
Exercise/Conversion
Cash Settled Restricted Stock Units
[F2][F4]
2026-03-15−69→ 2,400 total
→ Common Stock (69 underlying)

Holdings

Footnotes (4)

[F1]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.
[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 2025 and ending February 2028.
[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 2026 and ending February 2029.

Signature

/s/Jessica Jarvi (Attorney-in-fact)|2026-03-17

1 file