X0306 4 2012-12-14 0000891106 STERLING FINANCIAL CORP /WA/ STSA 0001379808 BUTTERFIELD ROBERT G 111 N. WALL STREET SPOKANE WA 99201 1 Controller/Prin. Acct. Officer Common Stock 2012-12-14 4 M 0 2392 A 2532 D Common Stock 2012-12-14 4 F 0 810 20.10 D 1722 D Common Stock 156 I 401k Restricted Stock Unit 2012-12-14 4 M 0 2392 D 2013-12-14 Common Stock 2392 2391 D Represents the vesting and settlement of 2,392 shares of common stock pursuant to a restricted stock unit vest on December 14, 2012. Each restricted stock unit represents a contingent right to receive one share of common stock. 25% of the restricted stock units vest immediately upon grant (December 14, 2010), 25% of the restricted stock units are scheduled to vest each year over the next 3 years on the grant's anniversary date (totaling 75% over the 3 year time period), subject to the reporting person's continued employment with the Company on such date. /s/ Karla J. Gehlen, attorney-in-fact 2012-12-17