Western Alliance officer reports stock unit disposals

The cash-settled units vest in monthly 1/36 installments across three overlapping schedules.

Rhea-AI Filing Summary

WAL officer Tim R. Bruckner, CBO for Regional Banking, reported three derivative disposals on October 15, 2026: 158, 115 and 142 cash-settled restricted stock units. The associated common-stock rows list acquisitions and dispositions to the issuer of the same share amounts at $74.35 per share. Each unit is the economic equivalent of one common share and is payable solely in cash.

The units vest in monthly 1/36 installments under schedules running from March 2024 through February 2027, March 2025 through February 2028, and March 2026 through February 2029. No Rule 10b5-1 plan is reported.

Insider Trade Summary

415 shares exercised/converted

Exercise 9 txns

Insider Bruckner Tim R

Role CBO for Regional Banking

Type	Security	Shares	Price	Value
Exercise	Cash Settled Restricted Stock Units F2, F1	158	--	--
Exercise	Cash Settled Restricted Stock Units F2, F3	115	--	--
Exercise	Cash Settled Restricted Stock Units F2, F4	142	--	--
Exercise	Common Stock F1, F2	158	$0.00	$0.00
Disposition	Common Stock	158	$74.35	$12K
Exercise	Common Stock F3, F2	115	$0.00	$0.00
Disposition	Common Stock	115	$74.35	$9K
Exercise	Common Stock F4, F2	142	$0.00	$0.00
Disposition	Common Stock	142	$74.35	$11K

Holdings After Transaction: Cash Settled Restricted Stock Units — 6,444 contracts (Direct); Common Stock — 29,068 shares (Direct)

Footnotes (4)

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.
4. F4. 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 2026 and ending February 2029.

Key Figures

Cash-settled restricted stock units: 158 units Cash-settled restricted stock units: 115 units Cash-settled restricted stock units: 142 units +2 more

5 metrics

Cash-settled restricted stock units 158 units Derivative disposal reported October 15, 2026

Cash-settled restricted stock units 115 units Derivative disposal reported October 15, 2026

Cash-settled restricted stock units 142 units Derivative disposal reported October 15, 2026

Disposition price $74.35 per share Common-stock dispositions to the issuer reported October 15, 2026

Monthly vesting installment 1/36th Each cash-settled unit schedule

Key Terms

Cash Settled Restricted Stock Units, economic equivalent, vest

3 terms

Cash Settled Restricted Stock Units financial

"These units vest and are payable solely in cash"

Cash-settled restricted stock units are employee compensation promises that mirror the value of company shares but pay out in cash instead of delivering actual stock once the units vest. Think of them as a future paycheck tied to the company’s share price that is paid after time or performance conditions are met. Investors watch them because they create future cash obligations for the company and avoid share dilution, both of which can affect earnings, cash flow and per-share metrics.

economic equivalent financial

"Each unit is the economic equivalent of one share"

vest technical

"These units vest and are payable solely in cash"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What transactions did WAL officer Tim R. Bruckner report?

On October 15, 2026, Tim R. Bruckner reported derivative disposals of 158, 115 and 142 cash-settled restricted stock units. The associated common-stock rows list acquisitions and dispositions to the issuer of those share amounts, with issuer dispositions at $74.35 per share.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/19/2026 - 04:31 PM EDT Accepted by SEC EDGAR 10/19/2026 - 04:30 PM EDT Learn about SEC filing dates

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 ARIZONA 85004

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/15/2026

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

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

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

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	10/15/2026		M		158(1)	A	$0(2)	29,226	D
Common Stock	10/15/2026		D		158	D	$74.35	29,068	D
Common Stock	10/15/2026		M		115(3)	A	$0(2)	29,183	D
Common Stock	10/15/2026		D		115	D	$74.35	29,068	D
Common Stock	10/15/2026		M		142(4)	A	$0(2)	29,210	D
Common Stock	10/15/2026		D		142	D	$74.35	29,068	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)	10/15/2026		M			158	(1)	(1)	Common Stock	158	(2)	639	D
Cash Settled Restricted Stock Units	(2)	10/15/2026		M			115	(3)	(3)	Common Stock	115	(2)	1,838	D
Cash Settled Restricted Stock Units	(2)	10/15/2026		M			142	(4)	(4)	Common Stock	142	(2)	3,967	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. 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 2026 and ending February 2029.

Remarks:

	/s/Jessica Jarvi (Attorney-in-fact)	10/19/2026
	** 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).
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.
* Form 4: SEC 1474 (03-26)