[Form 4] WESTERN ALLIANCE BANCORPORATION Insider Trading Activity

Rhea-AI Filing Summary

Western Alliance Bancorporation director Mary Chris Jammet reported receiving deferred equity-based compensation. On January 15, 2026, she acquired 251 Deferred Stock Units tied to Western Alliance common stock at a reference price of $89.83 per unit, which was the closing price of the common stock that day.

According to the disclosure, these deferred units were credited under the company’s Director Deferral Plan instead of paying cash fees on that date. The units will be settled in shares of Western Alliance common stock after she separates from service, with any fractional units paid in cash. Following this transaction, she beneficially owned 251 Deferred Stock Units, held directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider JAMMET MARY CHRIS

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Deferred Stock Units	251	$89.83	$23K

Holdings After Transaction: Deferred Stock Units — 251 shares (Direct)

Footnotes (1)

1. Represents Deferred Stock Units credited under the Issuer's Director Deferral Plan in lieu of cash compensation otherwise payable on the transaction date. Deferred Stock Units are paid in shares of Common Stock Issued under the Issuer's Stock Incentive Plan after separation from service, with cash for any fractional units. Represents the closing price of the Issuer's Common Stock on the transaction date which was used to determine the number of Deferred Stock Units acquired on that date.

Form 4 Insider Transactions: What Each Field Means →

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^*

JAMMET MARY CHRIS

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
01/15/2026

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

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
Deferred Stock Units(1)	(1)	01/15/2026		A		251		(1)	(1)	Common Stock	251	$89.83(2)	251	D

Explanation of Responses:

1. Represents Deferred Stock Units credited under the Issuer's Director Deferral Plan in lieu of cash compensation otherwise payable on the transaction date. Deferred Stock Units are paid in shares of Common Stock Issued under the Issuer's Stock Incentive Plan after separation from service, with cash for any fractional units.

2. Represents the closing price of the Issuer's Common Stock on the transaction date which was used to determine the number of Deferred Stock Units acquired on that date.

Remarks:

	/s/Jessica Jarvi (Attorney-in-fact)	01/20/2026
	** 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).
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