Western Alliance CAO logs 235-share, $79.03 trade

Rhea-AI Filing Summary

WESTERN ALLIANCE BANCORPORATION (WAL) reported that Chief Administration Officer Timothy W. Boothe exercised or converted cash‑settled restricted stock units that are economically equivalent to 235 shares of common stock on September 15, 2026, and reported matching dispositions of 235 shares to the issuer at $79.03 per share, resulting in no net change in reported common‑stock ownership. The cash‑settled units vest monthly and are payable solely in cash, and Boothe also reports 325 common shares held indirectly through his spouse.

Insider Trade Summary

235 shares exercised/converted

Exercise 10 txns

Insider Boothe Timothy W

Role Chief Administration Officer

Type	Security	Shares	Price	Value
Exercise	Cash Settled Restricted Stock Units F2, F1	97	--	--
Exercise	Cash Settled Restricted Stock Units F2, F3	69	--	--
Exercise	Cash Settled Restricted Stock Units F2, F4	69	--	--
Exercise	Common Stock F1, F2	97	$0.00	$0.00
Disposition	Common Stock	97	$79.03	$8K
Exercise	Common Stock F3, F2	69	$0.00	$0.00
Disposition	Common Stock	69	$79.03	$5K
Exercise	Common Stock F4, F2	69	$0.00	$0.00
Disposition	Common Stock	69	$79.03	$5K
holding	Common Stock	--	--	--

Holdings After Transaction: Cash Settled Restricted Stock Units — 3,646 contracts (Direct); Common Stock — 65,417 shares (Direct); Common Stock — 325 shares (Indirect, Alvina Boothe (spouse))

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

Shares from cash-settled units: 235 shares Disposition price: $79.03 per share First share block: 97 shares +3 more

6 metrics

Shares from cash-settled units 235 shares Economic equivalent of common stock exercised or converted on September 15, 2026

Disposition price $79.03 per share Price for issuer dispositions of common stock on September 15, 2026

First share block 97 shares Common stock received and then returned to the issuer on September 15, 2026

Second share block 69 shares Common stock received and then returned to the issuer on September 15, 2026 (first 69-share block)

Third share block 69 shares Common stock received and then returned to the issuer on September 15, 2026 (second 69-share block)

Indirect holdings 325 shares Common stock held indirectly through spouse Alvina Boothe after the reported transactions

Key Terms

cash settled restricted stock units, economic equivalent, disposition to issuer

3 terms

cash settled restricted stock units financial

"These units vest and are payable solely in cash as follows: 1/36th on the 15th day of each month"

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 of Western Alliance Bancorporation common stock"

disposition to issuer financial

"transaction description refers to a disposition to issuer of common stock"

FAQ

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

What did WAL executive Timothy W. Boothe report in this Form 4?

He reported exercises or conversions of cash‑settled restricted stock units equal to 235 common shares and matching dispositions of 235 shares to Western Alliance Bancorporation on September 15, 2026, leaving his reported common‑stock ownership unchanged.

How many Western Alliance (WAL) shares were involved in the reported transactions?

The filing shows equity equivalent to 235 common shares from cash‑settled units (blocks of 97, 69, and 69 shares), and corresponding dispositions of 235 common shares back to Western Alliance Bancorporation.

At what price were the WAL shares disposed of to the issuer?

The dispositions to Western Alliance Bancorporation were reported at $79.03 per share for blocks of 97, 69, and 69 common shares on September 15, 2026.

Were the Western Alliance (WAL) restricted stock units settled in stock or cash?

The filing states that the reported units "vest and are payable solely in cash" and that each unit is the economic equivalent of one share of Western Alliance Bancorporation common stock, so they are cash‑settled rather than settled in shares.

Does this WAL Form 4 show a trading plan under Rule 10b5-1?

No. The Form 4 does not indicate that the reported transactions were made under a Rule 10b5‑1 trading plan; the trading‑plan checkbox is not affirmed.

What WAL shareholdings does Timothy W. Boothe report after these transactions?

He reports 325 shares of common stock held indirectly through his spouse, Alvina Boothe. The Form 4 does not state a direct common‑stock balance after the reported transactions.

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

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Available on EDGAR 09/17/2026 - 05:02 PM Accepted by SEC EDGAR 09/17/2026 - 05:02 PM 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^*

Boothe Timothy W

(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)
	Chief Administration Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2026

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	09/15/2026		M		97(1)	A	$0(2)	65,514	D
Common Stock	09/15/2026		D		97	D	$79.03	65,417	D
Common Stock	09/15/2026		M		69(3)	A	$0(2)	65,486	D
Common Stock	09/15/2026		D		69	D	$79.03	65,417	D
Common Stock	09/15/2026		M		69(4)	A	$0(2)	65,486	D
Common Stock	09/15/2026		D		69	D	$79.03	65,417	D
Common Stock								325	I	Alvina Boothe (spouse)

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)	09/15/2026		M			97	(1)	(1)	Common Stock	97	(2)	488	D
Cash Settled Restricted Stock Units	(2)	09/15/2026		M			69	(3)	(3)	Common Stock	69	(2)	1,172	D
Cash Settled Restricted Stock Units	(2)	09/15/2026		M			69	(4)	(4)	Common Stock	69	(2)	1,986	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)	09/17/2026
	** 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)