Brian J. Donohoe - 22 Jan 2026 Form 4/A - Amendment Insider Report for WESTAMERICA BANCORPORATION (WABC)

Role: SVP/Chief Information Officer
Signature: /s/ Brian J Donohoe
Issuer symbol: WABC
Transactions as of: 22 Jan 2026
Net transactions value: +$1,048,575
Form type: 4/A - Amendment
Filing time: 28 Jan 2026, 16:24:20 UTC
Date Of Original Report: 26 Jan 2026
Previous filing: 05 Mar 2025
Next filing: 03 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
DONOHOE BRIAN J	SVP/Chief Information Officer	4550 MANGELS BLVD., FAIRFIELD	/s/ Brian J Donohoe	28 Jan 2026	0001763817

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WABC	Common Stock	Award	$0	+2,040	+4355%	$0.000000	2,087	22 Jan 2026	Direct	F1, F2
holding	WABC	Common Stock						2,053	22 Jan 2026	ESOP
holding	WABC	Common Stock						2,784	22 Jan 2026	By Trust	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	WABC	Non-qualified Stock Option (Right to Buy)	Award	$1,048,575	+20,500		$51.15	20,500	22 Jan 2026	Common Stock	20,500	$51.15	Direct	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Restricted Performance Shares granted in 2023 have vested upon meeting performance criteria.
F2	Vested Restricted Performance Shares were incorrectly transferred from Common Stock (D) to Common Stock (I) owned by Trust and inadvertently included in the balance of indirectly owned by Trust.
F3	Options vest ratably over three years beginning one year from date of grant