AGREEMENT AND PLAN OF MERGER Between FRONTIER FINANCIAL CORPORATION and FRONTIER BANK and WASHINGTON BANKING COMPANY and WHIDBEY ISLAND BANK Dated as of September 26, 2007Merger Agreement • November 8th, 2007 • Washington Banking Co • State commercial banks • Washington
Contract Type FiledNovember 8th, 2007 Company Industry JurisdictionThis AGREEMENT AND PLAN OF MERGER, dated as of the 26th day of September, 2007 (this “Agreement”), is by and among FRONTIER FINANCIAL CORPORATION (“Frontier”), FRONTIER BANK (“Frontier Bank”), WASHINGTON BANKING COMPANY (“WBC”) and WHIDBEY ISLAND BANK (“Whidbey Island Bank”).