WAL accounting chief logs grant and stock sale

Western Alliance Bancorporation’s Chief Accounting Officer Ben Mucha reported several stock transactions in February.

Rhea-AI Filing Summary

Western Alliance Bancorporation’s Chief Accounting Officer Ben Mucha reported several stock transactions in February. On February 13, he acquired 1,092 shares of common stock as a grant at $0.00 per share. On February 15, 319 shares were disposed of to cover tax obligations through a tax-withholding disposition at $93.20 per share. On February 18, he executed an open-market sale of 641 shares of common stock at a weighted average price of $95.62 per share, with individual sale prices ranging from $95.58 to $95.64. After these transactions, his directly held common stock position was reported as 11,727 shares.

Insider Trade Summary

Net Seller: 641 shares

Net Sell 3 txns

Insider Mucha Ben

Role Chief Accounting Officer

Sold 641 shs ($61K)

Type	Security	Shares	Price	Value
Sale	Common Stock	641	$95.62	$61K
Exercise Price or Tax Liability	Common Stock	319	$93.20	$30K
Grant/Award	Common Stock	1,092	$0.00	$0.00

Holdings After Transaction: Common Stock — 11,727 shares (Direct)

Footnotes (1)

1. F1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.58 to $95.64, inclusive. The reporting person undertakes to provide to Western Alliance Bancorporation, any security holder of Western Alliance Bancorporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within this range.

FAQ

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

What insider transactions did WAL’s Chief Accounting Officer report?

Ben Mucha, WAL’s Chief Accounting Officer, reported three transactions: a grant of 1,092 common shares, a tax-withholding disposition of 319 shares, and an open-market sale of 641 shares, all in February, changing his directly held stake to 11,727 shares.

How many Western Alliance (WAL) shares did the insider sell and at what price?

Ben Mucha sold 641 WAL common shares in an open-market transaction at a weighted average price of $95.62 per share. Individual sale prices ranged from $95.58 to $95.64, according to the detailed pricing footnote in the disclosure.

What was the purpose of the 319 WAL shares disposed of by the insider?

The 319 Western Alliance shares were disposed of to satisfy tax obligations. The filing describes this as a tax-withholding disposition, where shares are delivered to cover exercise price or tax liability rather than being sold in a regular open-market trade.

How many Western Alliance (WAL) shares did the insider receive as a grant?

The Chief Accounting Officer received a grant of 1,092 WAL common shares at $0.00 per share. This represents a stock-based award or similar grant, increasing his direct ownership before subsequent tax-related and open-market dispositions reported in the same filing.

What is Ben Mucha’s WAL shareholding after these insider transactions?

After the reported grant, tax-withholding disposition, and open-market sale, Ben Mucha’s directly owned Western Alliance common stock holdings totaled 11,727 shares. This figure reflects his position immediately following the last transaction reported in the filing.

Were the Western Alliance (WAL) insider share sales executed at a single price?

No. The 641 WAL shares sold were executed in multiple trades at prices between $95.58 and $95.64. The reported $95.62 figure is a weighted average, and the insider offers to provide exact trade breakdowns upon request.

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

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 02/18/2026 - 04:36 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^*

Mucha Ben

(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)
	Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/13/2026

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
Common Stock	02/13/2026		A		1,092	A	$0	12,687	D
Common Stock	02/15/2026		F		319	D	$93.2	12,368	D
Common Stock	02/18/2026		S		641	D	$95.62(1)	11,727	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

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.58 to $95.64, inclusive. The reporting person undertakes to provide to Western Alliance Bancorporation, any security holder of Western Alliance Bancorporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within this range.

Remarks:

	/s/Jessica Jarvi (Attorney-in-fact)	02/18/2026
	** 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.