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[Form 4] WESTERN ALLIANCE BANCORPORATION Insider Trading Activity

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Western Alliance Bancorporation’s Chief Risk Officer reported routine equity transactions involving company common stock. On 11/15/2025, previously granted cash-settled restricted stock units that are economically equivalent to common stock were converted into 72 and 53 shares of common stock at an exercise price of $0. On the same date, matching amounts of 72 and 53 common shares were disposed of at a price of $78.17 per share. Following these transactions, the reporting officer beneficially owned 14,671 shares of Western Alliance Bancorporation common stock directly. The restricted stock units vest monthly over multi-year periods ending in February 2027 and February 2028.

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Negative

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Insider Nachlas Emily
Role Chief Risk Officer
Type Security Shares Price Value
Exercise Cash Settled Restricted Stock Units 72 $0.00 $0.00
Exercise Cash Settled Restricted Stock Units 53 $0.00 $0.00
Exercise Common Stock 72 $0.00 $0.00
Disposition Common Stock 72 $78.17 $6K
Exercise Common Stock 53 $0.00 $0.00
Disposition Common Stock 53 $78.17 $4K
Holdings After Transaction: Cash Settled Restricted Stock Units — 2,503 shares (Direct); Common Stock — 14,671 shares (Direct)
Footnotes (3)
  1. 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.
  2. F2. Each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock.
  3. 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.

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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*
Nachlas Emily
(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)
Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Risk Officer
3. Date of Earliest Transaction (Month/Day/Year)
11/15/2025
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 11/15/2025 M 72(1) A $0(2) 14,743 D
Common Stock 11/15/2025 D 72 D $78.17 14,671 D
Common Stock 11/15/2025 M 53(3) A $0(2) 14,724 D
Common Stock 11/15/2025 D 53 D $78.17 14,671 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) 11/15/2025 M 72 (1) (1) Common Stock 72 (2) 1,077 D
Cash Settled Restricted Stock Units (2) 11/15/2025 M 53 (3) (3) Common Stock 53 (2) 1,426 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) 11/18/2025
** 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.

Source: View Original Filing on SEC EDGAR