[Form 4] WESTERN ALLIANCE BANCORPORATION Insider Trading Activity

Rhea-AI Filing Summary

Western Alliance Bancorporation officer Jessica H. Jarvi reported insider transactions on 10/15/2025.

The filing shows two sets of movements in common stock: an acquisition via code M of 58 shares at $0 and a disposition of 58 shares at $78.84, and an acquisition via code M of 46 shares at $0 followed by a disposition of 46 shares at $78.84.

After these transactions, she beneficially owned 12,457 shares directly. Indirect holdings were 2,074 shares in the 401(k) plan as of 09/30/2025. The derivative table identifies cash‑settled restricted stock units, each economically equivalent to one share, vesting monthly in 36 installments across stated periods.

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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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^*

Jarvi Jessica H

(Last) (First) (Middle)

1 E. WASHINGTON STREET

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)
	CLO & Secretary

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		58(1)	A	$0(2)	12,515	D
Common Stock	10/15/2025		D		58	D	$78.84	12,457	D
Common Stock	10/15/2025		M		46(3)	A	$0(2)	12,503	D
Common Stock	10/15/2025		D		46	D	$78.84	12,457	D
Common Stock								2,074(4)	I	WAL 401(k)

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			58	(1)	(1)	Common Stock	58	(2)	911	D
Cash Settled Restricted Stock Units	(2)	10/15/2025		M			46	(3)	(3)	Common Stock	46	(2)	1,287	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:

	Jessica H. Jarvi	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 activity did WAL report on this Form 4?

On 10/15/2025, the officer reported acquisitions via code M of 58 and 46 shares at $0, and dispositions of 58 and 46 shares at $78.84.

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

Direct beneficial ownership is 12,457 shares. Indirect holdings are 2,074 shares in the 401(k) as of 09/30/2025.

Who is the reporting person and their role at WAL?

The reporting person is Jessica H. Jarvi, serving as CLO & Secretary.

What price was reported for the WAL share dispositions?

The disposition price was $78.84 per share.

What derivative securities are referenced in the filing?

The filing lists cash-settled restricted stock units, each the economic equivalent of one share of common stock.

How do the RSUs vest according to the filing?

They vest in 1/36th monthly installments across 36 months during the stated periods.