The Board of Directors of TriCo Bancshares (NASDAQ:TCBK) (the "Company"), parent company of Tri Counties Bank, declared a quarterly cash dividend of $0.33 (thirty-three cents) per share on its common stock, no par value on May 22, 2025. The dividend is payable on June 20, 2025, to holders of record on June 6, 2025.

Established in 1975, Tri Counties Bank is a wholly-owned subsidiary of TriCo Bancshares (NASDAQ:TCBK) headquartered in Chico, California, with assets of nearly $10 billion and 50 years of financial stability. Tri Counties Bank is dedicated to providing exceptional service for individuals and businesses throughout California with a unique brand of customer focused Service with Solutions®. Tri Counties Bank provides an extensive and competitive breadth of consumer, small business and commercial banking financial services, along with convenient around-the-clock ATM, online and mobile banking access. Brokerage services are provided by Tri Counties Advisors through affiliation with Raymond James Financial Services, Inc. Visit www.TriCountiesBank.com to learn more.

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Peter G. Wiese, EVP & CFO, (530) 898-0300