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): August 27, 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 5. Other Events On August 27, 1997 United Security Bancorporation announced it has signed a definitive agreement to acquire closely-held Community Bancorporation and its wholly-owned subsidiary, Bank of Pullman. The press release is enclosed as an exhibit. 99. Press release dated August 27, 1997, issued by United Security Bancorporation. 1 EXHIBIT INDEX Exhibit No. Title - ----------- ----- 99. Press release dated August 27, 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: August 27, 1997 UNITED SECURITY BANCORPORATION By: /s/ Chad Galloway ------------------------------ Name: Chad Galloway Title: Vice President and Chief Financial Officer 2