Westamerica Bancorporation(WABC) - 2020 Q4 - Annual Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark one) ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______________ to______________. Commission File Number: 001-09383 WESTAMERICA BANCORPORATION (Exact name of the registrant as specified in its charter) California 94-2156203 (State or Other Jurisdiction (I.R.S. Employer of Incorporation or Organization) Identification Number) 1108 Fifth Avenue, ...