0001127602-23-008641.txt : 20230303 0001127602-23-008641.hdr.sgml : 20230303 20230303145047 ACCESSION NUMBER: 0001127602-23-008641 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230301 FILED AS OF DATE: 20230303 DATE AS OF CHANGE: 20230303 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: THORSON JOHN A CENTRAL INDEX KEY: 0001201516 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-09383 FILM NUMBER: 23703252 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: WESTAMERICA BANCORPORATION CENTRAL INDEX KEY: 0000311094 STANDARD INDUSTRIAL CLASSIFICATION: NATIONAL COMMERCIAL BANKS [6021] IRS NUMBER: 942156203 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1108 FIFTH AVE CITY: SAN RAFAEL STATE: CA ZIP: 94901 BUSINESS PHONE: (707) 863-6000 MAIL ADDRESS: STREET 1: 4550 MANGELS BLVD STREET 2: A-2Y CITY: FAIRFIELD STATE: CA ZIP: 94585-1200 FORMER COMPANY: FORMER CONFORMED NAME: INDEPENDENT BANKSHARES CORP DATE OF NAME CHANGE: 19830801 4 1 form4.xml PRIMARY DOCUMENT X0306 4 2023-03-01 0000311094 WESTAMERICA BANCORPORATION WABC 0001201516 THORSON JOHN A 4550 MANGELS BLVD FAIRFIELD CA 94534 1 SVP/Treasurer Common Stock 1198.597 I Esop Common Stock 2023-03-01 4 F 0 976 55.375 D 13799 I By Trust Of the 1,950 Restricted Performance Shares that vested January 2023, 976 shares were withheld to pay for the tax liability. /s/Jesse Leavitt, attorney-in-fact for Mr. Thorson 2023-03-03