1 UNITED STATES 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 23, 2000 FIRSTIER CORPORATION (Exact name of registrant as specified in its charter) Colorado 000-25295 47-0484682 - ------------------------------- ------------------------ ------------------- (State or other jurisdiction of (Commission File Number) (I.R.S. Employer incorporation or organization) Identification No.) 11210 Huron Street Northglenn, Colorado 80234 ---------------------------------------- (Address of principal executive offices) (303) 451-1010 ---------------------------------------------------- (Registrant's telephone number, including area code) 2 ITEM 5. OTHER EVENTS On September 5, 2000, FirsTier Corporation ("FirsTier") and Compass Bancshares, Inc. ("Compass") announced the signing of a definitive agreement, dated as of August 23, 2000, by and between FirsTier and Compass pursuant to which a wholly owned subsidiary of Compass will be merged with and into FirsTier. The consideration to be paid to shareholders of FirsTier will consist of 6,800,000 shares of Compass common stock. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. FIRSTIER CORPORATION Date: September 13, 2000 By: /s/ Timothy D. Wiens --------------------------------- Timothy D. Wiens, President and Chief Executive Officer 2