GIBBONS DALE 4

4 · WESTERN ALLIANCE BANCORPORATION · Filed Jun 17, 2026

AI-generated summary of this filing

Updated Jun 17, 2026

WESTERN ALLIANCE (WAL) Vice Chair Dale Gibbons Sells Shares

What Happened

Dale Gibbons, Vice Chair and Chief Banking Officer (Deposits) of Western Alliance Bancorporation (WAL), converted vested derivative units (Form 4 code M) and immediately disposed of the resulting 726 shares to the issuer (code D) on June 15, 2026. The dispositions were reported at $81.81 per share, producing gross cash proceeds of approximately $59,394 (285 + 212 + 229 = 726 shares).
The conversion entries show an acquisition price of $0.00 for the units (reflecting conversion of vested units) and the subsequent disposition to the issuer at $81.81 per share. This is effectively a cash settlement of vested units rather than an open-market sale or a purchase.

Key Details

Transaction date: 2026-06-15; Filing date: 2026-06-17 (timely filed within the Form 4 window).
Prices and amounts: three conversions/acquisitions of 285, 212 and 229 units at $0.00, followed by dispositions of the same share counts at $81.81 each; total cash ≈ $59,394.
Total shares involved: 726 shares converted/disposed (285 + 212 + 229).
Shares owned after the transactions: not specified in the provided filing excerpt.
Relevant footnotes:
- F1/F3/F4 — the units represent awards that vest and are payable solely in cash in monthly installments over 36-month schedules beginning March 2024, March 2025, and March 2026, respectively.
- F2 — each unit is the economic equivalent of one share of common stock.
- F5 — reflects 401(k) holdings including employer match as of 6/11/2026.
Transaction codes: M = exercise/conversion of derivative security; D = disposition to the issuer.

Context

This filing reflects conversion/cash settlement of vested awards with proceeds paid by the issuer (i.e., immediate disposition to the company), not an open-market purchase or speculative trade. Such cash-settled conversions are routine for vested units and often reflect standard payout/tax-withholding procedures rather than a directional bet on the stock.
No 10b5-1 plan or gifting designation was disclosed in the provided excerpt.

Form 4

Period: 2026-06-15

Vice Chair and CBO, Deposits

Transactions

Exercise/Conversion
Common Stock
[F1][F2]
2026-06-15+285→ 267,378 total
Disposition to Issuer
Common Stock
2026-06-15$81.81/sh−285$23,316→ 267,093 total
Exercise/Conversion
Common Stock
[F3][F2]
2026-06-15+212→ 267,305 total
Disposition to Issuer
Common Stock
2026-06-15$81.81/sh−212$17,344→ 267,093 total
Exercise/Conversion
Common Stock
[F4][F2]
2026-06-15+229→ 267,322 total
Disposition to Issuer
Common Stock
2026-06-15$81.81/sh−229$18,734→ 267,093 total
Exercise/Conversion
Cash Settled Restricted Stock Units
[F2][F1]
2026-06-15−285→ 2,272 total
→ Common Stock (285 underlying)
Exercise/Conversion
Cash Settled Restricted Stock Units
[F2][F3]
2026-06-15−212→ 4,223 total
→ Common Stock (212 underlying)
Exercise/Conversion
Cash Settled Restricted Stock Units
[F2][F4]
2026-06-15−229→ 7,316 total
→ Common Stock (229 underlying)

Holdings

Footnotes (5)

[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.
[F5]Reflects shares held in the 401K Plan to include employer match as of 6/11/2026.

Signature

/s/Jessica Jarvi (Attorney-in-fact)|2026-06-17

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