Page 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 31, 2008 -------------- WESTAMERICA BANCORPORATION -------------------------- (Exact Name of Registrant as Specified in Its Charter) CALIFORNIA ---------- (State or Other Jurisdiction of Incorporation) 001-9383 94-2156203 -------- ---------- (Commission File Number) (IRS Employer Identification No.) 1108 Fifth Avenue, San Rafael, California 94901 ---------------------------------------------------------- (Address of Principal Executive Offices) (Zip Code) (707) 863-6000 -------------- (Registrant's Telephone Number, Including Area Code) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: [] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4c)) Page 2 Item 8.01: Other Events ------------------------ Westamerica Bancorporation expects to report a first quarter 2008 pre-tax cash gain of approximately $5.7 million on the partial redemption of its equity interest in Visa. In addition, the Company expects to reverse approximately $2.3 million of indemnification liabilities related to Visa litigation established in the fourth quarter 2007. As a result, the Company's first quarter 2008 results are expected to benefit from these events by approximately $4.7 million after- tax, equivalent to $0.16 per diluted share. FORWARD-LOOKING INFORMATION: The following appears in accordance with the Private Securities Litigation Reform Act of 1995: This information may contain forward-looking statements about the Company, including descriptions of plans or objectives of its management for future operations, products or services, and forecasts of its revenues, earnings or other measures of economic performance. Forward-looking statements can be identified by the fact that they do not relate strictly to historical or current facts. They often include the words "believe," "expect," "anticipate," "intend," "plan," "estimate," or words of similar meaning, or future or conditional verbs such as "will," "would," "should," "could," or "may." Forward-looking statements, by their nature, are subject to risks and uncertainties. A number of factors - many of which are beyond the Company's control - could cause actual conditions, events or results to differ significantly from those described in the forward-looking statements. The Company's most recent annual and quarterly reports filed with the Securities and Exchange Commission, including the Company's Form 10-K for the year ended December 31, 2007, describe some of these factors, including certain credit, market, operational, liquidity and interest rate risks associated with the Company's business and operations. Other factors described in these reports include changes in business and economic conditions, competition, fiscal and monetary policies, disintermediation, legislation including the Sarbanes-Oxley Act of 2002 and the Gramm-Leach-Bliley Act of 1999, and mergers and acquisitions. Forward-looking statements speak only as of the date they are made. The Company does not undertake to update forward-looking statements to reflect circumstances or events that occur after the date forward looking statements are made. Page 3 Signatures Pursuant to the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Westamerica Bancorporation /s/ JOHN "ROBERT" THORSON ------------------------------------------------- John "Robert" Thorson Senior Vice President and Chief Financial Officer March 31, 2008