WESTAMERICA BANCORPORATION

This report on Form 10-Q contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Examples of forward-looking statements include, but are not limited to: (i) projections of revenues, expenses, future credit quality and performance, the appropriateness of the allowance for credit losses, loan growth or reduction, mitigation of risk in the Company’s loan and investment securities portfolios, income or loss, earnings or loss per share, the payment or nonpayment of dividends, stock repurchases, capital structure and other financial items; (ii) statements of plans, objectives and expectations of the Company or its management or board of directors, including those relating to products or services; (iii) statements of future economic performance; and (iv) statements of assumptions underlying such statements. Words such as "believes", "anticipates", "expects", “estimates”, "intends", "targeted", "projected", “forecast”, "continue", "remain", "will", "should", "may" and other similar expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements.

These forward-looking statements are based on the current knowledge and belief of the management (“Management”) of Westamerica Bancorporation (the “Company”) and include information concerning the Company’s possible or assumed future financial condition and results of operations. A number of factors, some of which are beyond the Company’s ability to predict or control, could cause future results to differ materially from those contemplated.

These factors include but are not limited to (1) the length and severity of any difficulties in the global, national and California economies and the effects of government efforts to address those difficulties; (2) liquidity levels in capital markets; (3) fluctuations in asset values including, but not limited to stocks, bonds, real estate, and commodities; (4) the effect of acquisitions and integration of acquired businesses; (5) economic uncertainty created by civil unrest, terrorist threats and attacks on the United States, the actions taken in response, and the uncertain effect of these events on the local, regional and national economies; (6) changes in the interest rate environment and monetary policy; (7) changes in the regulatory environment; (8) competitive pressure in the banking industry; (9) operational risks including a failure or breach in data processing or security systems or those of third party vendors and other service providers, including as a result of cyber attacks or fraud; (10) volatility of interest rate sensitive loans, deposits and investments, particularly the impact of rising interest rates on the Company’s securities portfolio; (11) asset/liability management risks; (12) liquidity risks including the impact of recent adverse developments in the banking industry; (13) the effect of climate change, natural disasters, including earthquakes, hurricanes, fire, flood, drought, and other disasters, on the uninsured value of the Company’s assets and of loan collateral, the financial condition of debtors and issuers of investment securities, the economic conditions affecting the Company’s market place, and commodities and asset values; (14) changes in the securities markets; (15) the duration and severity of pandemics and governmental and customer responses; (16) inflation and (17) the outcome of contingencies, such as legal proceedings. However, the reader should not consider the above-mentioned factors to be a complete set of all potential risks or uncertainties.

Forward-looking statements speak only as of the date they are made. The Company undertakes no obligation to update any forward-looking statements in this report to reflect circumstances or events that occur after the date forward looking statements are made, except as may be required by law. The reader is directed to Part II – Item 1A “Risk Factors” of this report and other risk factors discussed elsewhere in the Company's annual report on Form 10-K for the year ended December 31, 2023, for further discussion of factors which could affect the Company's business and cause actual results to differ materially from those expressed in any forward-looking statement made in this report.

-3-