TRICO BANCSHARES

The Board’s diversity principles acknowledge and embrace the benefits of having a diverse board of directors. These principles are incorporated into TriCo's corporate governance guidelines. Diversity in the Board’s composition boosts creativity and supports informed decision-making based on different perspectives. It also helps us understand and engage with a variety of stakeholders and to achieve our business and other goals increasing shareholder value.

At TriCo, board diversity consists of a number of individual elements, including gender, age, nationality, cultural and educational backgrounds, skills and experience. We believe that diversity is not a static concept, but rather a relevant mix of required elements for the Board as a whole that evolves with time based on, among other things, the relevant business objectives and future needs of TriCo. We treat board diversity as a means for improvement and development rather than an end in itself. The Board applies these principles when evaluating the composition of the Board and in evaluating potential candidates.

Annual Proxy Statement 15

The following graphs illustrate the independence, tenure, age, and other demographics of our Board of Directors, as of April 2, 2025: