About Westamerica

Shareholder Information

Annual Report Copies

Westamerica Bancorporation will provide its security holders, without charge, a copy of its 2018 Annual Report on Form 10-K, including the financial statements and schedules thereto, as filed with the Securities and Exchange Commission. Requests for copies of this annual report should be directed to:

Westamerica Bancorporation
Investor Relations, A-2B
Post Office Box 1250, Suisun City, CA 94585-1250
Telephone (707) 863-6992, E-mail: investments@westamerica.com

Dividend Reinvestment

Westamerica Bancorporation offers a dividend reinvestment program whereby registered shareholders may reinvest their dividends in shares of the Company. Information concerning this optional program is available from:

Computershare Investor Services LLC
Telephone (877) 588-4258 (Toll-free)

Notice of Annual Meeting

The Westamerica Bancorporation Annual Meeting was held on Thursday, April 25, 2019 at 10:00 a.m, at Westamerica Bancorporation, 4550 Mangels Blvd., Fairfield, California 94534.

Stock Listing

The NASDAQ Stock Market, Symbol: WABC

Transfer Agent

Computershare Investor Services LLC
Telephone (877) 588-4258 (Toll-free)

www.computershare.com/investor