Westamerica (WABC) CIO logs 1,010-share tax-withholding disposal tied to vested awards

Rhea-AI Filing Summary

Westamerica Bancorporation executive reports tax-withholding share disposition. SVP and Chief Information Officer Brian J. Donohoe reported a Form 4 transaction involving common stock tied to vested equity awards.

On March 2, 2026, a trust associated with Donohoe disposed of 1,010 shares of common stock at $50.90 per share in a tax-withholding disposition related to vesting of 2,040 Restricted Performance Shares in January 2026. These shares were withheld to cover the tax liability rather than sold in an open-market trade.

After this transaction, indirect holdings by trust stood at 3,814 shares. Donohoe also reported 46.8411 shares of common stock held directly and 2,052.978 shares held indirectly through an ESOP, reflecting his remaining ownership positions.

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

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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^*

DONOHOE BRIAN J

(Last) (First) (Middle)

4550 MANGELS BLVD.

(Street)

FAIRFIELD CA 94534

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
WESTAMERICA BANCORPORATION [ WABC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP/Chief Information Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/02/2026

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	03/02/2026		F		1,010(1)	D	$50.9	3,814	I	By Trust
Common Stock								46.8411	D
Common Stock								2,052.978	I	ESOP

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. Of the 2,040 Restricted Performance Shares that vested January 2026, 1,010 shares were withheld to pay the tax liability.

	/s/ Brian J Donohoe	03/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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** 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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FAQ

What insider transaction did Westamerica Bancorporation (WABC) report for Brian J. Donohoe?

Brian J. Donohoe reported a tax-withholding disposition of 1,010 shares of Westamerica Bancorporation common stock. The shares were withheld at $50.90 each to cover taxes on 2,040 Restricted Performance Shares that vested in January 2026.

Was the WABC insider transaction by Brian J. Donohoe an open-market sale?

No, the 1,010-share transaction was a tax-withholding disposition, not an open-market sale. Shares were withheld by the company to satisfy Donohoe’s tax liability arising from the vesting of 2,040 Restricted Performance Shares in January 2026.

How many Westamerica Bancorporation shares did Brian J. Donohoe dispose of for taxes?

He disposed of 1,010 shares of Westamerica Bancorporation common stock via tax withholding. The shares, valued at $50.90 each, were retained to pay taxes owed on 2,040 Restricted Performance Shares that vested in January 2026.

What are Brian J. Donohoe’s Westamerica Bancorporation shareholdings after the reported Form 4?

Following the filing, Donohoe indirectly holds 3,814 shares via a trust, directly holds 46.8411 shares, and indirectly holds 2,052.978 shares through an ESOP. These figures represent his reported ownership positions after the March 2, 2026 tax-withholding transaction.

What role does Brian J. Donohoe hold at Westamerica Bancorporation (WABC)?

Brian J. Donohoe serves as Senior Vice President and Chief Information Officer at Westamerica Bancorporation. His Form 4 filing reflects equity-related activity, including a tax-withholding disposition tied to vesting of Restricted Performance Shares in January 2026.

Why were 1,010 WABC shares withheld from Brian J. Donohoe in January 2026?

The 1,010 shares were withheld to pay the tax liability on 2,040 Restricted Performance Shares that vested in January 2026. Instead of an open-market sale, the shares were retained as payment for Donohoe’s associated tax obligations.