Exhibit 99.1 For Immediate Release | October 23, 2025 | Chico, California TriCo Bancshares reports third quarter 2025 net income of $34.0 million, diluted EPS of$1.04 3Q25 Financial Highlights Executive Commentary: "We continue to see positive trends in a number of measures that will benefit the Company in future periods, which, as demonstrated in the current quarter, led to both positive operating leverage and growth in return on equity. While we anticipate crossing the $10 billion threshold in 2026, our ...