SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 20, 1997 United Security Bancorporation (Exact Name of Registrant as Specified in Charter) Washington 0-18561 91-1259511 ---------- ------- ---------- (State or other jurisdiction (Commission (IRS Employer Identi- of incorporation) File Number) fication Number) 9506 North Newport Highway, Spokane, Washington 99218- 1200 ----------------------------------------------------- - ----- (Address of principal executive offices/Zip Code) Registrant's telephone number, including area code: (509) 467-6949 --------------------------------------------------------- - ---------- Item 2. Acquisition or Disposition of Assets. On October 20, 1997 United Security Bancorporation acquired Community Ban Corporation and its wholly-owned subsidiary Bank of Pullman. The agreement and plan of merger is included as Exhibit No. 2. The news release of October 21, 1997 is included as Exhibit No. 99. The financial statements required by this item will be filed as an amendment to Form 8-K by December 30, 1997. 1 EXHIBIT INDEX Exhibit No. Title - ----------- ----- 2. Agreement and Plan of Merger 99. Press release dated October 21, 1997, issued by United Security Bancorporation. SIGNATURES Pursuant to the requirements of the Security Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Dated: October 31, 1997 UNITED SECURITY BANCORPORATION By: /s/ Chad Galloway ------------------------------ Name: Chad Galloway Title: Vice President and Chief Financial Officer 2