The Tacoma, Washington-based lender’s Umpqua retail network will change its name to Columbia Bank later this year as part of ...

The acquisition accelerates the bank's reach in southern California and will give the combined bank about $70 billion in assets.

Columbia Banking System will acquire Pacific Premier Bancorp in an all-stock deal for about $2 billion, the companies said on ...

Columbia Banking System (COLB) and Pacific Premier Bancorp (PPBI) jointly announced that they have entered into a definitive merger agreement, ...

Columbia Banking System (COLB) and Pacific Premier Bancorp (PPBI) jointly announced today that they have entered into a definitive merger ...