TriCo Bancshares (TCBK) CEO to Ring the NASDAQ Stock Market Opening Bell


MEDIA ADVISORY, Sept. 20, 2006 (PRIMEZONE) --



 What:
 Rick Smith, CEO of TriCo Bancshares (TCBK) will preside over the 
 opening bell.

 Where:
 NASDAQ MarketSite - 4 Times Square - 43rd & Broadway - Broadcast Studio

 When: 
 Thursday September 21st, 2006 at 9:30 a.m. EDT

 Contacts:
 Nicole Johansson
 Marketing Manager 
 530-332-2333 (wk)
 530-990-0383 (cell)
 nicolejohansson@tcbk.com

 NASDAQ MarketSite:
 Stephanie Lowenthal; 646.441.5220

Feed Information:

The opening bell is available from 9:20 a.m. to 9:35 a.m. on uplink IA6 C band / transponder 24, downlink frequency 4180 horizontal. The feed can also be found on Waterfront fiber 1623. If you have any questions, please contact Stephanie Lowenthal at (646) 441-5220.

Photos:

To obtain a hi-resolution photograph of the Market Open, please go to http://www.nasdaq.com/reference/marketsite_events.stm and click on the market open of your choice.

About TriCo Bancshares (TCBK):

TriCo Bancshares and Tri Counties Bank are headquartered in Chico, California. Tri Counties Bank has a 31-year history in the banking industry. Tri Counties Bank operates 32 traditional branch locations and 22 in-store branch locations in 22 California counties, and as of June 30, 2006, had over $1.8 billion in assets. Tri Counties Bank offers financial services and provides a diversified line of products and services to consumers and businesses, which include demand, savings and time deposits, consumer finance, online banking, mortgage lending, and commercial banking throughout its market area. It operates a network of 61 ATMs and a 24-hour, seven days a week telephone customer service center. Brokerage services are provided at the Bank's offices by the Bank's association with Raymond James Financial, Inc. For further information please visit the Tri Counties Bank web-site at http://www.tricountiesbank.com.