X0202 4/A 2007-07-23 2007-07-23 1 0000898018 MOUNTAIN BANK HOLDING CO 623852100 0001232810 RAEDER JOHN W 1 0 0 0 Common Stock 2007-07-23 4 D 0 31772 D 0 D Common Stock 2007-07-23 4 D 0 970 D 0 I Spouse Employee Stock Option (Right to Buy) 10.4762 2007-07-23 4 D 0 3700 D 2015-11-21 Common Stock 3700 0 D Employee Stock Option (Right to Buy) 15 2007-07-23 4 D 0 400 D 2019-06-15 Common Stock 400 0 D Disposed of pursuant to merger agreement between issuer and Columbia Banking System, Inc. in exchange for 13.442 shares of Columbia Banking System common stock having a value of $23.54 per share based on the exchange ratio. Disposed of pursuant to merger agreement between issuer and Columbia Banking Systems, Inc. in exchange for 410 shares of Columbia Banking System common stock having a value of $23.54 per share based on the exchange ratio. This option, which provided for vesting in three equal annual installments beginning November 21, 2003, was assumed by Columbia Banking System, Inc. in the merger and replaced with an option to purchase 2,997 shares of Columbia Banking System common stock for $12.93 per share. This option, which provided for vesting in three equal annual installments beginning June 15, 2007, was assumed by Columbia Banking System, Inc. in the merger and replaced with an option to purchase 324 shares of Columbia Banking System common stock for $18.51 per share. John W. Raeder 2007-07-23