Investor Presentaiton

Liquidity In addition to a strong deposit base, the bank maintains a variety of easily accessible funding sources Pledged Securities as % of Total Securities [3] 45.1 42.9 43.4 40.1 39.1 37.5 37.2 35.7 34.2 36.5 35.6 35.1 TCBK Peers 35.9 33.9 31.6 25.2 26.9 21.5 21.9 19.0 17.6 18.6 19.8 21.8 22.8 Liquidity Sources [1] 1Q20 2Q20 3Q20 4Q20 1Q21 2Q21 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q23 $67 TCBK Insured Deposits as % of Total Deposits [2][3] Peers $4.4 Billion 191% of $1,883 estimated uninsured deposits $2,459 77.2 74.1 74.0 73.2 72.7 72.5 71.2 70.3 71.2 66.3 66.3 66.5 67.6 67.3 66.5 65.6 64.9 63.8 63.6 63.7 62.8 62.1 62.6 62.7 64.5 1Q20 2Q20 3Q20 4Q20 1Q21 2Q21 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q23 ■Total Borrow Capacity Unpledged Securities = Cash [1]$ millions, as of 3/31/2023, cash based upon total held at or in transit with FRB [2] Based upon estimated uninsured deposits reported in Call Report schedule RC-O includes demand and time deposits [3] Peer group consists of closest 99 peers in terms of assets, sourced from BankRegData.com 16 Investor Presentation | First Quarter 2023 trico bancshares

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