[Form 4] WESTERN ALLIANCE BANCORPORATION Insider Trading Activity

Rhea-AI Filing Summary

Western Alliance Bancorporation (WAL) reported insider activity by its CBO for Regional Banking on 10/15/2025. The officer exercised awards and matched share dispositions: 158 shares at $78.84 and 115 shares at $78.84, with acquisitions reported at $0 per share under code “M”. Following these transactions, the officer directly owned 24,759 shares.

Related derivative entries reflect cash‑settled restricted stock units, each economically equivalent to one WAL share and payable solely in cash. Footnotes indicate vesting of 1/36th monthly from March 2024–February 2027 for one grant and March 2025–February 2028 for another.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Bruckner Tim R

(Last) (First) (Middle)

ONE E WASHINGTON ST., SUITE 1400

(Street)

PHOENIX AZ 85004

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
WESTERN ALLIANCE BANCORPORATION [ WAL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CBO for Regional Banking

3. Date of Earliest Transaction (Month/Day/Year)
10/15/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/15/2025		M		158(1)	A	$0(2)	24,917	D
Common Stock	10/15/2025		D		158	D	$78.84	24,759	D
Common Stock	10/15/2025		M		115(3)	A	$0(2)	24,874	D
Common Stock	10/15/2025		D		115	D	$78.84	24,759	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Cash Settled Restricted Stock Units	(2)	10/15/2025		M			158	(1)	(1)	Common Stock	158	(2)	2,535	D
Cash Settled Restricted Stock Units	(2)	10/15/2025		M			115	(3)	(3)	Common Stock	115	(2)	3,218	D

Explanation of Responses:

1. 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.

2. Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.

3. 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.

Remarks:

	/s/Jessica Jarvi (Attorney-in-fact)	10/17/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions were reported for WAL?

On 10/15/2025, the officer reported matched transactions: 158 shares at $78.84 and 115 shares at $78.84, tied to award exercises coded “M” at $0.

How many WAL shares does the reporting person own after the transactions?

The officer directly owned 24,759 WAL shares after the reported activity.

What derivative securities were involved for WAL?

Cash‑settled restricted stock units, each the economic equivalent of one WAL common share and payable solely in cash, were reported.

What are the vesting schedules for the WAL cash‑settled RSUs?

Vesting is 1/36th monthly: one grant from March 2024–February 2027, another from March 2025–February 2028.

Who is the reporting person in the WAL filing?

An Officer (CBO for Regional Banking) of Western Alliance Bancorporation filed the report.

What transaction code appears in the WAL Form 4?

Code M (exercise/conversion) appears for award activity, alongside corresponding dispositions at $78.84.