On December 19, 2019, the Westamerica Bancorporation board of directors nominated Melanie Martella Chiesa to serve as an independent member of the Board of Directors effective January 23, 2020 until her successor is duly nominated, qualified, and elected. Dr. Chiesa is a partner in her family’s walnut and almond farming operations in Stanislaus County. Dr. Chiesa is an optometrist in private practice at Monte Vista Optometry. Dr. Chiesa volunteers a significant amount of time to various local philanthropic organizations.