X0306 4 2017-08-17 0 0000946673 BANNER CORP BANR 0001187851 ORRICO BRENT A 10 SOUTH FIRST AVE WALLA WALLA WA 99362 1 0 0 0 Common Stock, $.01 par value per share 2017-08-17 4 S 0 3000 D 72929 D The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.535 to $55.59 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (1). Includes direct ownership of 2,453 shares through an IRA and 11,719 shares through a Deferred Compensation Plan. Also includes indirect ownership of 33,935 shares through companies controlled by Mr. Orrico and 18,827 shares through trusts directed by Mr. Orrico. /s/Brent A. Orrico 2017-08-18