AGREEMENT AND PLAN OF MERGER by and among UMPQUA HOLDINGS CORPORATION, COLUMBIA BANKING SYSTEM, INC., and CASCADE MERGER SUB, INC.Agreement and Plan of Merger • October 15th, 2021 • Umpqua Holdings Corp • Savings institution, federally chartered • Oregon
AGREEMENT AND PLAN OF MERGER, dated as of October 11, 2021 (this “Agreement”), by and among Umpqua Holdings Corporation, an Oregon corporation (“Umpqua”), Columbia Banking System, Inc., a Washington corporation (“Columbia”), and Cascade Merger Sub, Inc., a Delaware corporation and a direct, wholly owned subsidiary of Columbia (“Merger Sub”).
