[Form 4] WESTERN ALLIANCE BANCORPORATION Insider Trading Activity

Rhea-AI Filing Summary

Western Alliance Bancorporation reported insider transactions by its President and CEO (also a Director) on 10/15/2025. The filing shows settlements of cash-settled RSUs and matched share activity: 539 and 437 shares were acquired at $0 via code M and the same amounts were sold at $78.84. Following these trades, the reporting person directly held 447,611 common shares.

Indirect holdings were 1,950 shares in a 401K Plan as of 09/30/2025 and 750 shares in a UTMA account. The cash-settled RSUs vest monthly in equal 1/36th installments under schedules running from March 2024–February 2027 and March 2025–February 2028.

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
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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^*

Vecchione Kenneth

(Last) (First) (Middle)

C/O WESTERN ALLIANCE BANCORPORATION

ONE E. WASHINGTON STREET, STE 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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

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		539(1)	A	$0(2)	448,150	D
Common Stock	10/15/2025		D		539	D	$78.84	447,611	D
Common Stock	10/15/2025		M		437(3)	A	$0(2)	448,048	D
Common Stock	10/15/2025		D		437	D	$78.84	447,611	D
Common Stock								1,950(4)	I	401K Plan
Common Stock								750	I	Darcy Vecchione UTMA (daughter)

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			539	(1)	(1)	Common Stock	539	(2)	8,636	D
Cash Settled Restricted Stock Units	(2)	10/15/2025		M			437	(3)	(3)	Common Stock	437	(2)	12,230	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.

4. Reflects shares held in the 401K Plan to include employer match as of 09/30/2025.

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 did WAL’s CEO report on Form 4?

Settlements of cash-settled RSUs and same-day share transactions on 10/15/2025, including acquisitions at $0 (code M) and sales at $78.84.

How many WAL shares were involved in the transactions?

Two blocks: 539 shares and 437 shares were acquired via RSU settlement and sold the same day.

What is the CEO’s WAL shareholding after these trades?

Direct ownership was 447,611 common shares. Indirect holdings included 1,950 shares in a 401K (as of 09/30/2025) and 750 shares in a UTMA account.

What were the RSU vesting schedules disclosed for WAL?

Cash-settled RSUs vest 1/36th monthly: one grant from March 2024–February 2027, and another from March 2025–February 2028.

What transaction code was used on the derivative activity?

Code M, indicating settlement of derivative securities into the underlying economic equivalent of common stock.

What sale price was reported for WAL shares?

Reported sales were executed at $78.84 per share.