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): May 4, 2005 TriCo Bancshares (Exact name of registrant as specified in its charter) California 0-10661 94-2792841 ------------------------ --------------- -------------------- (State or other (Commission File No.) (I.R.S. Employer jurisdiction of Identification No.) incorporation or organization) 63 Constitution Drive, Chico, California 95973 -------------------------------------------------------------------------------- (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code:(530) 898-0300 Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Item 8.01: Other Events ------------------------ Richard P. Smith, President and Chief Executive Officer of TriCo Bancshares (the "Company"), has informed the Company that on May 4, 2005, he terminated his pre-arranged stock trading plan previously adopted on March 30, 2005, relating to the sale of up to 37,500 shares of the Company's common stock. The plan was adopted in accordance with the guidelines specified under Rule 10b5-1 under the Securities Exchange Act of 1934, as amended. No trades were made under the Plan. Instead, Mr. Smith plans to sell approximately 37,500 shares upon his exercise of options expiring in June 2005 during the Company's current "trading window" pursuant to the Company's Policy Concerning Trading in Company Securities. Mr. Smith currently reports beneficial ownership of 525,386 shares of the Company's common stock including vested and non-vested stock options, but excluding shares held by the Company's ESOP of which Mr. Smith is a trustee. The 37,500 shares which are anticipated to be sold by Mr. Smith represent approximately 7% of his shareholdings. Mr. Smith has confirmed to the Company that, as required by securities laws, he will promptly publicly disclose any option exercises and/or stock sales of Company common stock made by him. Except as may be required by law, the Company does not undertake to report plans by other Company officers or directors, nor to report modifications, terminations, transactions or other activities under the plans of any officer or director. SIGNATURE 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, thereunto duly authorized. TRICO BANCSHARES Date: May 4, 2005 By: /s/ Thomas J. Reddish -------------------------------------- Thomas J. Reddish, Executive Vice President and Chief Financial Officer (Principal Financial and Accounting Officer)