#1trico bancshares Investor Presentation First Quarter 2023 Richard P. Smith, President & Chief Executive Officer Peter G. Wiese, EVP & Chief Financial Officer Dan K. Bailey, EVP & Chief Banking Officer John S. Fleshood, EVP & Chief Operating Officer#2Safe Harbor Statement The statements contained herein that are not historical facts are forward-looking statements based on management's current expectations and beliefs concerning future developments and their potential effects on the Company. Such statements involve inherent risks and uncertainties, many of which are difficult to predict and are generally beyond our control. There can be no assurance that future developments affecting us will be the same as those anticipated by management. We caution readers that a number of important factors could cause actual results to differ materially from those expressed in, or implied or projected by, such forward-looking statements. These risks and uncertainties include, but are not limited to, the following: the strength of the United States economy in general and the strength of the local economies in which we conduct operations; the effects of, and changes in, trade, monetary and fiscal policies and laws, including interest rate policies of the Board of Governors of the Federal Reserve System; inflation, interest rate, market and monetary fluctuations impacts on the Company's business condition and financial operating results; the impact of changes in financial services industry policies, laws and regulations; regulatory restrictions on our ability to successfully market and price our products to consumers; technological changes; weather, natural disasters and other catastrophic events that may or may not be caused by climate change and their effects on economic and business environments in which the Company operates; the continuing adverse impact on the U.S. economy, including the markets in which we operate due to the lingering effects of the COVID-19 global pandemic; the impact of a slowing U.S. economy and potentially increased unemployment on the performance of our loan portfolio, the market value of our investment securities, the availability of, and cost of, sources of funding and the demand for our products; adverse developments with respect to U.S. or global economic conditions and other uncertainties, including the impact of supply chain disruptions, commodities prices, inflationary pressures and labor shortages on the economic recovery and our business; the impacts of international hostilities, terrorism or geopolitical events; the quality and quantity of our deposits; adverse developments in the financial services industry generally such as the recent bank failures and any related impact on depositor behavior or investor sentiment; risks related to the sufficiency of liquidity; the possibility that our recorded goodwill could become impaired, which may have an adverse impact on our earnings and capital; the costs or effects of mergers, acquisitions or dispositions we may make, as well as whether we are able to obtain any required governmental approvals in connection with any such mergers, acquisitions or dispositions, or identify and complete favorable transactions in the future, and/or realize the contemplated financial business benefits associated with any such activities; the regulatory and financial impacts associated with exceeding $10 billion in total assets; the negative impact on our reputation and profitability in the event customers experience economic harm or in the event that regulatory violations are identified; the ability to execute our business plan in new lending markets; the future operating or financial performance of the Company, including our outlook for future growth and changes in the level and direction of our nonperforming assets and charge-offs; the appropriateness of the allowance for credit losses, including the timing and effects of the implementation of the current expected credit losses model; any deterioration in values of California real estate, both residential and commercial; the effectiveness of the Company's asset management activities in improving, resolving or liquidating lower-quality assets; the effect of changes in the financial performance and/or condition of our borrowers; changes in accounting standards and practices; possible other-than-temporary impairment of securities held by us due to changes in credit quality or rates; changes in consumer spending, borrowing and savings habits; our ability to attract and maintain deposits and other sources of liquidity; the effects of changes in the level or cost of checking or savings account deposits on our funding costs and net interest margin; our noninterest expense and the efficiency ratio; competition and innovation with respect to financial products and services by banks, financial institutions and non-traditional providers including retail businesses and technology companies; the challenges of attracting, integrating and retaining key employees; the costs and effects of litigation and of unexpected or adverse outcomes in such litigation; the vulnerability of the Company's operational or security systems or infrastructure, the systems of third-party vendors or other service providers with whom the Company contracts, and the Company's customers to unauthorized access, computer viruses, phishing schemes, spam attacks, human error, natural disasters, power loss and data/security breaches and the cost to defend against and respond to such incidents; increased data security risks due to work from home arrangements and email vulnerability; failure to safeguard personal information; changes to U.S. tax policies, including our effective income tax rate; the effect of a fall in stock market prices on our brokerage and wealth management businesses; the transition away from the London Interbank Offered Rate toward new interest rate benchmarks; and our ability to manage the risks involved in the foregoing. Additional factors that could cause results to differ materially from those described above can be found in our Annual Report on Form 10-K for the year ended December 31, 2022, which has been filed with the Securities and Exchange Commission (the "SEC") and all subsequent filings with the SEC under Sections 13(a), 13(c), 14, and 15(d) of the Securities Act of 1934, as amended. Such filings are also available in the "Investor Relations" section of our website, https://www.tcbk.com/investor-relations and in other documents we file with the SEC. Annualized, pro forma, projections and estimates are not forecasts and may not reflect actual results. We undertake no obligation (and expressly disclaim any such obligation) to update or alter our forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by law. 2 Investor Presentation | First Quarter 2023 trico bancshares#3Tri Counties Bank Top 50 Community Banks SAP Global Market Intelligen S&P Global Market Intelligence # 10 Community Bank with $3-10 billion in assets + 2023 2023 Best Nevada County Grass Valley Union Best of Nevada County every year 2011-2022 APPADENOCARE ES OF ENDED CHOICE Favorite OFYLDA-CUTTER 2021 Marysville Appeal Democrat Favorite Bank: 2019, 2021 Favorite Banker: Amy Briscoe, 2020 Best of NORTH STATE *2022* WINNER Record Searchlight Best Bank in the North State 2015, 2016, 2018, 2022 Habitat for Humanty Habitat for Humanity of Greater Sacramento Hammy Award: Finance Partner 2022 Best CN&R FIRST PLACE 22 Chico News & Review Best Bank every year 2008-2022 CORPORATE CITIZENSHIP 2022 Sacramento Business Journal Corporate Citizenship Corporate Champion for Basic Needs 2022 Forbes Forbes Magazine Best-In-State Bank 2021 22 STYLE READERS CHOICE AWARDS WINNER Style Magazine Roseville, Granite Bay & Rocklin Readers' Choice every year 2011-2022 Zaburn Journals 2022 BESTBEST Auburn Auburn Journal Best Bank 2019, 2020, 2021, 2022 Butler County's s #1 Readers Booker thevce Choice of 2021 Chico Enterprise Record Best Bank 2019, 2020, 2021 Practically Genius Creative Digital Innovation of the Year Reader's 20 Choice Times Standard Best of the North Coast 20 Formstack Practically Genius Award Creative Digital Innovation of the Year 2021 2030 DS OF THEST best Mt. Shasta Herald Best Banker: Barry Stacey 2019, 2020 Times Standard Best of the North Coast 2020 2021 PIONEER Best REVIEW Bank Tri Counties Bank Colusa County Pioneer Review Best Bank 2019, 2020, 2021 3 Investor Presentation | First Quarter 2023 trico bancshares#4trecounties back Agenda • Most Recent Quarter Recap • Company Overview Lending Overview • Deposit Overview • Financials Investor Presentation | First Quarter 2023 • • Executive Team (left to right) Judi Giem, SVP & Chief Human Resources Officer Peter Wiese, EVP & Chief Financial Officer Dan Bailey, EVP & Chief Banking Officer Rick Smith, President & Chief Executive Officer John Fleshood, EVP & Chief Operating Officer • • Craig Carney, EVP & Chief Credit Officer Greg Gehlmann, SVP & General Counsel trico bancshares#5Most Recent Quarter Highlights Operating Leverage and Profitability Balance Sheet Management Liquidity Net Interest Income and Margin Credit Quality • Pre-tax pre-provision ROAA and ROAE were 2.18% and 19.83%, respectively, for the quarter ended March 31, 2023, and 1.69% and 14.70%, respectively, for the same quarter in the prior year Our efficiency ratio was 50.3% for the quarter ended March 31, 2023, compared to 51.8% and 56.0% for the quarters ended December 31, 2022 and March 31, 2022, respectively Earning asset mix shift and liquidity management have been critical to our revenue generation and navigation of our total asset size which approximates $10 billion Loan to deposit ratio has grown to 80.0% at March 31, 2023 compared to 67.2% a year ago While cash flows generated from investment securities continue to perform as expected, management will remain opportunistic regarding the execution of portfolio sales while placing greater emphasis on the use of short-term borrowing or brokered deposits to support funding needs Unrealized losses on HTM investment securities, and not recognized in equity through AOCI, represent less than 1% of total shareholders' equity Readily available and unused funding sources, which total approximately $4.4 billion and represent 55% of total deposits and 191% of total estimated uninsured deposits. No reliance on brokered deposits or FRB borrowing facilities during the quarter Net interest margin (FTE) of 4.21%, compared to 4.34% in the prior quarter, and 3.39% in March 31, 2022, was influenced by the rising rate environment, deposit pricing strategies, and increased borrowings The loan portfolio yields increased 11 basis points to 5.21% during the quarter Yield on earning assets (FTE) of 4.64% in the quarter, an increase of 12 basis points from 4.52% in the trailing quarter, partially offset increased funding costs in both deposits and borrowings The allowance for credit losses to total loans was 1.69% as of March 31, 2023, compared to 1.64% as of December 31, 2022, and 1.64% as of March 31, 2022 Classified loans to total loans was 1.00% at March 31, 2023 as compared to 1.11% December 31, 2022 Loans past due 30+ days to total loans was 0.12% at quarter end Diverse Deposit Base Non-interest-bearing deposits comprise 40.3% of total deposits Deposit betas remain low with a cycle-to-date deposit beta of 4.42% Capital Strategies Quarterly dividend of $0.30 or $1.20 annually Approximately 1.2 million shares remain as being authorized for repurchase Tangible capital ratio of 8.1% at March 31, 2023, an increase from 7.6% in the trailing quarter Strength in core earnings is key to self-financed and self-funded growth 5 Investor Presentation | First Quarter 2023 trico bancshares#6Company Overview Crescent City McKinleyville Eureka Fortuna Weaverville Hayfork Yreka Redding (4 branches) Weed Mt. Shasta Fall River Mills Burney Shasta Lake Palo Cedro Regions Branch locations as of April 2023 Northern Greater Chico Sacramento Valley Central Valley Bay Area Nasdaq: Headquarters: Stock Price*: TCBK Chico, California Anderson Cottonwood Red Bluff Chico (4 branches) Commercial Banking Centers Covelo Orland Paradise Durham Willows Oroville Willits Nevada City Colusa Yuba City Grass Valley (2 branches) Marysville Woodland Auburn Middletown Roseville (2 branches) Folsom Santa Rosa Sacramento (2 branches) Brentwood San Rafael Walnut Creek San Francisco (4 branches) Daly City Pacifica Patterson Gustine Modesto Turlock South San Francisco Millbrae Half Moon Bay San Mateo Redwood City Pescadero San Jose Chowchilla Fresno As of close of business March 31, 2023 Visalia Delano ◆ Bakersfield (3 branches) Los Angeles/Pasadena Irvine 6 Investor Presentation | First Quarter 2023 San Diego $41.59 Market Cap.: $1.38 Billion Asset Size: $9.84 Billion Loans: $6.42 Billion Deposits: $8.03 Billion Bank Branches: 70 ATMs: Market Area: 88 Bank ATMs, with access to over 37,000 in network TriCo currently serves 31 counties throughout California trico bancshares#7"Top of Mind for Today and Tomorrow" Key Executive Management Themes and Topics Deposit Granularity and Liquidity - the Ability to Remain in a Position of Strength While Shifts in Money Supply Occur Active Monitoring of Loans for Early Warning Signs While Maintaining Sufficient Reserves Domestic Implications on Growing Global Economic and Political Uncertainty Maintaining Investor and Depositor Confidence in the Strength of the Community Banking Industry, Inclusive of the Deposit Insurance Fund Balancing Appropriate Risk Adjusted Loan Revenue - Divergent Actions of the FOMC and State / National Administrations Capital, Scaling and Leverage – Meticulously Patient in Finding the Right Partner at the Right Time to Cross $10 Billion in Total Assets Regulatory Focus Areas - Compliance, Data Governance and M&A 7 Investor Presentation | First Quarter 2023 trico bancshares#88 Earnings (in Millions) Positive Earnings Track Record Elevated ACL Provisioning Associated with COVID Related Risks $40 July 2018 $36 Acquired FNB Bancorp ($1.2B assets) 2020 $32 $28 $24 $20 $16 $12 $8 $4 March 2022 Acquired Valley Republic Bancorp ($1.4B assets) $1.20 $0 Net Income ($MM) Qtrly Diluted EPS Q1'18 Q2'18 Q3'18 Q4'18 Q1'19 Q2'19 Q3'19 Q4'19 Q1'20 Q2'20 Q3'20 Q4'20 Q1'21. Q2'21 Q3'21 Q4'21 Q1'22 Q2'22 Q3'22 Q4'22 Q1'23 $13.9 $15.0 $16.2 $23.2 $22.7 $23.1 $23.4 $22.9 $16.1 $7.4 $17.6 $23.6 $33.6 $28.4 $27.4 $28.2 $20.4 $31.4 $37.3 $36.3 $35.8 $0.60 $0.65 $0.53 $0.76 $0.74 $0.75 $0.76 $0.75 $0.53 $0.25 $0.59 $0.79 $1.13 $0.95 $0.92 $0.94 $0.67 $0.93 $1.12 $1.09 $1.07 Investor Presentation | First Quarter 2023 $0.80 $0.40 $0.00 trico bancshares Qtrly EPS (diluted)#99 Shareholder Returns Dividends per Share: 11.4% CAGR* Return on Avg. Shareholder Equity 13.36% ■Q1 ■Q2 ■Q3 ■ Q4 $1.10 $1.00 12.10% 11.67% $0.88 10.75% 10.49% $0.82 $0.30 $0.25 $0.70 $0.66 $0.22 8.10% $0.22 7.18% $0.17 $0.19 $0.25 $0.30 $0.22 $0.22 $0.17 $0.17 $0.17 $0.17 $0.19 $0.22 $0.25 $0.25 $0.15 $0.17 $0.19 $0.22 $0.25 $0.25 $0.30 2017 2018 2019 2020 2021 2022 2023 2017 2018 2019 2020 2021 2022 2023 Dividends as % of Earnings 41% Diluted EPS 37% 27% 27% ■ Q1 ■ Q2 ■Q3 ■Q4 $3.94 $3.83 29% 28% $3.00 $0.94 $1.09 25% $2.54 $0.75 $2.16 $0.92 $1.74 $0.76 $1.12 $0.76 $0.79 $0.53 $0.95 $0.51 $0.75 $0.59 $0.93 $0.58 $0.65 $0.25 $1.13 $1.07 $0.52 $0.60 $0.74 $0.53 $0.67 2017 2018 2019 2020 2021 2022 2023 2017 2018 2019 2020 2021 2022 2023 Compound Annual Growth Rate, 5 years 2023 ROE results QTD annualized Investor Presentation | First Quarter 2023 trico bancshares#10CAGR, Assets Consistent Growth Organic Growth and Disciplined Acquisitions ■Organic Acquired March 2022 Acquired Valley Republic ($1.4B assets) 5 yrs. 10 yrs. 15.5% 14.2% $10.1 $10.1 $9.9 $10.0 $9.9 $9.8 July 2018 Acquired FNB Bancorp ($1.2B assets) March 2016 Acquired 3 BofA Branches ($164MM assets) January 2014 Acquired North Valley Bank (5931MM assets) $2.7 2013 10 $4.8 $4.5 $4.2 $3.9 2014 $6.4 $6.5 $8.6 $7.6 2015 2016 2017 2018 2019 2020 2021 Asset Dollars in Billions. Investor Presentation | First Quarter 2023 2022 Trailing 10 years Q1 2022 Q2 2022 Trailing 5 quarters Q3 2022 Q4 2022 Q1 2023 trico bancshares#1111 Deposits Investor Presentation | First Quarter 2023 trico bancshares#1212 Investor Presentation | First Quarter 2023 Interest-bearing Demand & Savings Deposits, 50.8% Other liabilities, 2.2% Liability Mix: Strength in Funding Time Deposits, 3.9% Liability Mix 03/31/2023 Borrowings & Subordinated Debt, 6.1% Loans to Core Deposits (%) TCBK Peers 120 100 80 60 81.6 76.9 40 20 Non Interest- bearing Demand 0 Deposits, 37.0% 2020 2020 2020 2020 2021 2021 2021 2021 2022 2022 2022 2022 2023 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 10 IN 20 30 34.9 39.8 Total Deposits = $8.03 billion 93.7% of Funding Liabilities 0 2020 2020 2020 2020 2021 2021 2021 2021 2022 2022 2022 2022 2023 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Peer group consists of 99 closest peers in terms of asset size, range $4.7-11.5 Billion; source: BankRegData.com Net Loans includes LHFS and Allowance for Credit Loss; Core Deposits = Total Deposits less CDs > 250k and Brokered Deposits trico bancshares 39.7 39.7 40.3 40 Non Interest-bearing Deposits as % of Total Deposits TCBK Peers 40.7 40.7 40.4 41.1 41.2 42.5 42.0 40.3#13Deposits: Strength in Cost of Funds ➤ Relationship focused market share growth. Continued best in class total deposit Beta; (less than 4.42% rate rise cycle to date) $8,714 $8,757 $8,656 $8,329 $8,026 $7,367 $7,237 $6,992 $6,863 $3,583 $3,604 $6,506 $3,678 $6,248 $6,341 $3,502 $3,237 13 $5,403 $2,943 $2,980 $2,767 $2,844 $2,582 $2,487 $2,518 $1,883 $4,783 $4,825 $4,674 $4,603 $4,443 $3,101 $3,363 $3,446 $3,580 $3,769 $3,824 $3,967 $4,090 $419 $399 $376 $345 $328 $324 $327 $298 $349 $327 $304 $224 $346 Q1'20 Q2'20 Q3'20 Q4'20 Q1'21 Q2'21 Q3'21 Q4'21 Q1'22 Q2'22 Q3'22 Q4'22 Q1'23 Cost of Deposits Noninterest-Bearing Demand Int-Bearing Demand & Savings 0.16% 0.09% 0.06% 0.05% 0.04% 0.04% 0.05% 0.03% 0.04% 0.05% 0.07% 0.17% 0.39% Time Deposits 1.23% 1.09% 0.89% 0.68% 0.64% 0.55% 0.52% 0.45% 0.36% 0.26% 0.23% 0.32% 0.89% Total Deposits 0.19% 0.12% 0.09% 0.07% 0.06% 0.05% 0.05% 0.04% 0.04% 0.04% 0.04% 0.10% 0.25% Interest-bearing Deposits 0.29% 0.20% 0.15% 0.12% 0.10% 0.08% 0.08% 0.06% 0.06% 0.07% 0.08% 0.18% 0.42% Balances presented in millions, end of period Investor Presentation | First Quarter 2023 trico bancshares#14Deposits by Region Crescent City McKinleyville Eureka Fortuna Fall River Mills Yreka Redding (4 branches) Anderson Cottonwood Red Bluff Weed Mt. Shasta Burney Shasta Lake Chico (4 branches) Weaverville Hayfork Palo Cedro Regions Branch locations as of April 2023 Northern Greater Chico Sacramento Valley Central Valley Bay Area Commercial Banking Centers Covelo Orland Durham Willows Paradise Oroville Willits Nevada City Colusa Yuba City Marysville Woodland Middletown Folsom Santa Rosa Grass Valley (2 branches) Auburn Roseville (2 branches) Sacramento (2 branches) Brentwood San Rafael Walnut Creek San Francisco (4 branches) Daly City Pacifica Patterson Gustine Modesto Turlock South San Francisco Millbrae San Mateo Half Moon Bay Redwood City Pescadero San Jose Excludes bank owned operational deposits, public funds, and Direct Banking division. 14 Chowchilla Fresno Visalia Delano ◆ Bakersfield (3 branches) Los Angeles/Pasadena Investor Presentation | First Quarter 2023 Irvine San Diego Greater Chico Northern Bay Area Central Valley Sacramento Valley $0-$100k >$100k-$250k $250k-$500k $500k-$1 mln >$1 min $730 $1.626 billion, total Prior Quarter $392 $225 $132 $147 $1.862 billion, total $627 $422 $326 $285 $202 $1.225 billion, total $400 $284 $189 $216 $136 $1.468 billion, total $590 $236 $216 $220 $206 $0.978 billion, total $180 $148 $190 $143 $0-$100k >$100k-$250k >$250k-$500k $500k-$1 mln $318 >$1 mln trico bancshares#15Deposits: Demand & Savings Deposit Mix Total Demand & Savings ($ millions exterior, count interior) # 34,897 Business $3,184 Consumer $4,007 #209,845 Balance Tier, $ millions [1] 1,721 1,003 588 349 479 497 481 472 Consumer ■Business Prior Quarter, Total 346 1,255 Business # of Accounts $0-$100k 29,193 >$100k-$250k 3,117 Avg Bal Account ($000s) $16 Consumer $0-$100k $159 >$100k-$250k # of Accounts 200,903 6,493 >$250k-$500k 1,393 $345 >$250k-$500k 1,756 >$500k-$1 mln 687 $687 >$1 mln 507 $2,475 >$500k-$1 mln >$1 mln 523 170 Avg Bal / Account ($000s) $9 $154 $335 $668 $2,037 [1] Excludes time deposits, bank owned operational deposits and public funds. 15 Investor Presentation | First Quarter 2023 trico bancshares#16Liquidity 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#1717 Loans and Credit Quality Investor Presentation | First Quarter 2023 trico bancshares#18Loan Portfolio and Yield $4,859 5.44% $4,711 $4,739 $4,610 $4,381 $4,386 $4,407 $4,443 $4,111 $4,022 5.24% 5.15% 5.09% 5.23% 4.92% 4.96% 5.05% 4.78% 4.86% $6,452 $6,422 $6,313 $6,097 $5,796 5.21% 5.10% 4.88% 4.73% 4.69% Q3-2022 Q4-2022 Q1-2023 2018 2019 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Non-PPP PPP Loans Q3 2021 Loan Yield Q4 2021 Q1-2022 Q2-2022 Loan Yield Excl PPP Q1 2021 increase includes $98MM Jumbo Mortgage pool purchase End of period balances are presented net of fees and include LHFS. Yields based on average balance and annualized quarterly interest income. Acquired VRB Loans of $795MM upon 3/25/2022 with a WAR of 4.31%. VRB total included $21MM of PPP loans. 18 Investor Presentation | First Quarter 2023 trico bancshares#19Gross Production vs. Payoff In addition to the nearly $0.8 billion in non-PPP loan originations in 2020, TCBK originated over $0.4 billion in PPP loans. TCBK originated nearly $1.5 billion in 2021, while facing headwinds of an increased $372 million in payoffs during 2021. Originations and net loan growth in 2022 were supportive of the positive mix shift in earning assets and facilitated both NII and NIM expansion. " $6 $6 $33 $42 $4 $178 $199 $165 $250 $464 $285 $303 $412 $396 $473 $446 $250 $159 -$92 -$118 -$139 -$131 -$20 -$166 -$56 -$192 -$205 -$47 -$225 -$241 -$243 -$250 -$270 -$59 -$33 -$47 -$110 -$4 -$94 Q2-2022 Q3-2022 Q4-2022 Q1-2023 Q1-2020 Q2-2020 Q3-2020 Q4-2020 Q1-2021 Q2-2021 ■Origination ■Payoffs Q3-2021 Q4-2021 Q1-2022 ■Balance Change net of Originations and Payoffs Outstanding Principal in Millions, excludes PPP Includes Q1 2021 increase of $98MM and Q4 2020 increase of $40MM in Jumbo Mortgage pool purchases $800MM in outstanding at close of Q1-2022 related to VRB Acquisitions ($795MM at acquisition) excluded from the chart 19 Investor Presentation | First Quarter 2023 trico bancshares#20Diversified Loan Portfolio $2,161 Construction SFR HELOC and Junior Commercial & Liens Industrial SFR 1-4 Term Multifamily CRE-Owner Occupied CRE Non- Owner Occupied 20 0 Agriculture & Auto & Other Farmland 1Q-2023 1Q-2022 1Q-2023 1Q-2022 1Q-2023 1Q-2022 1Q-2023 $971 $851 $947 $840 $804 1Q-2022 $712 1Q-2023 1Q-2022 $553 $494 1Q-2023 $376 1Q-2022 $362 1Q-2023 $226 1Q-2022 $304 1Q-2023 $322 1Q-2022 $320 1Q-2023 $55 1Q-2022 $61 $1,891 % of CRE Non Own By Collateral Loans, net # Loans CRE (SMM) NOO Retail Office Hotel/Motel $568 348 26% 5457 374 21% $320 98 15% Light Industrial $168 176 8% Self Storage $130 50 6% Mixed Use, Retail $125 85 6% Warehouse $111 130 5% Construction 3% Agriculture & Farmland 5% Mixed Use, Office $41 33 2% Auto & Other 1% Other (22 Types) Total $241 241 11% $2,161 1,535 100% SFR HELOC and Junior Liens 6% Commercial & Industrial 9% CRE Non- Owner Occupied 34% SFR 1-4 Term 12% Multifamily 15% CRE-Owner Occupied 15% Dollars in millions, Net Book Value at period end, excludes LHFS; Auto & other includes Leases; Commercial & Industrial includes six Municipality Loans for $21.3 mln. Investor Presentation | First Quarter 2023 trico bancshares#2121 Office RE Collateral ➤ CRE loans secured by office collateral represent 9.6% of total Loan Portfolio Commitments. California Office Secured by Region Bay Area TCBK Community Net Book Balance Wtd Avg Loan Count Commitments Net Book Balance Banking Regions (Avg) LTV Central Valley 296 $309,868,158 $272,445,290 $920,423 60.7% Bay Area 118 168,961,869 156,308,282 1,324,646 51.6% Sacramento Valley 174 162,994,628 156,468,319 899,243 60.7% Chico 110 72,498,410 67,870,337 617,003 64.0% Southern 32 55,165,964 49,124,643 1,535,145 59.2% Northern 85 34,535,743 31,187,659 366,914 60.1% Outside CA 16 20,209,502 20,146,179 1,259,136 55.8% Total 831 $824,234,274 $753,550,710 $906,800 58.8% Regions by Collateral Code MEDICAL/DENTAL OFFICE Regions by Occupancy Type Non Owner Occ Owner Occ Central Valley Chico MIXED USE - OFFICE OFFICE BUILDING NEVADA Northern Sacramento Sacramento Sacramento Valley San Francisco San Francisco Sacramento San Francisco Southern San Jose San Jose San Jose Las Las Las CALIFORNIA CANFORNIA CALIFORNIA Los Angeles San Dead Méxic Graph circle size represent total loan Commitments in the Region Investor Presentation | First Quarter 2023 Los Angeles Los Angeles San Diego Mexic San Diego Mexic trico bancshares#22CRE Collateral Values 100% 90% Distribution by LTV (1) 80% LTV Range ■ <= 60% 70% ■> 60% -75% 69% ■> 75% 60% 50% 51% 46% 40% 30% 20% 10% 29% 79% 21% 63% 37% Avg Loan Loan Segment Outstanding ($MM) LTV # Loans Size (000s) CRE Non Owner Occupied $2,183 53% 1,535 $1,422 Retail Building $573 53% 348 $1,646 Office Building Hotel/Motel Light Industrial $462 57% 374 $1,236 $325 50% 98 $3,311 $171 52% 176 $970 88% Self Storage $130 51% 50 $2,610 Other $523 51% 489 $1,069 Multifamily $952 60% 505 $1,884 CRE Owner Occupied $979 59% 1,225 $799 Total $4,114 56% 3,265 $1,260 12% 72% 24% 39% 60% 2% 3% 0% 0% 0% 4% 1% 0% Retail Building Office Building Hotel/Motel Light Industrial Self Storage Other Multifamily CRE Non-Owner Occupied by Collateral Type (1) LTV as of most recent origination or renewal date. 22 Investor Presentation | First Quarter 2023 49% 44% 7% CRE Owner Occupied trico bancshares#23Unfunded Loan Commitments HELOCS - by vintage, with weighted avg. coupon (6.52% total WAC) ■Outstanding Principal ($MM) Unfunded Commitment ($MM) $162 $158 $2,183 $1,914 $55 $46 $646 $558 $952 $845 $275 8.61% 7.88% 8.13% 7.65% 7.72% 7.57% 7.68% 7.79% 8.11% 8.25% $250 7.56% $225 6.82% 6.80% $200 5.08% 5.24% $175 $150 $125 $100 $75 $50 $25 $0 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Unfunded (MM) WA Rate <2010 2010 2011 2012 2013 ■Private Balance (MM) $628 $557 $549 $460 $373 $360 $60 $36 $979 $288 $263 $860 $806 $715 $307 $121 $307 $327 $325 $229 $9 $8 $60 $52 1Q-2023 1Q-2022 1Q-2023 1Q-2022 1Q-2023 1Q-2022 1Q-2023 1Q-2022 1Q-2023 1Q-2022 1Q-2023 1Q-2022 1Q-2023 1Q-2022 1Q-2023 1Q-2022 1Q-2023 1Q-2022 CRE Non-Owner SFR HELOC and Junior Liens Occupied Multifamily Commercial & Industrial CRE-Owner Occupied SFR 1-4 Term Construction ➤ Outstanding Principal and Commitments exclude unearned fees and discounts/premiums, Leases, DDA Overdraft, and Credit Cards PPP Excluded from C&I for $0.5 million and $39 million in Outstanding Principal as of Q1 2023 and Q1 2022, respectively. Agriculture & Farmland Auto & Other 23 Investor Presentation | First Quarter 2023 trico bancshares#24C&I Utilization ➤C&l utilization is expected to grow incrementally through the remainder of 2023. Paired with treasury management services, C&I customers will be a continued source of noninterest bearing deposits. $196 $162 55% Oil & Gas Extraction C&I Utilization by NAICS Industry: 1Q-2023 Outstanding (min) $178 Unfunded (min) $88 $67 $52 $53 $55 $55 $43 $46 $44 $29 $27 $12 $20 $12 $11 33% Construction 50% Finance and Wholesale Insurance 54% 66% 22% 70% 57% Real Estate Healthcare Trans and Warehouse Retail Trade 48% Other (14) Categories) 7.31% 6.79% 6.11% 5.14% 5.10% 5.12% 4.91% 4.85% 4.84% 4.97% 4.96% 4.46% $628 $593 $603 $547 $544 $509 $476 $448 $265 $273 $372 $384 $360 $353 $339 $552 $262 $208 $205 $197 $187 $206 $186 $191 44.0% 2Q-2020 42.9% 3Q-2020 34.5% 32.7% 36.4% 34.5% 36.0% 44.8% 46.5% 4Q-2020 1Q-2021 2Q-2021 3Q-2021 4Q-2021 1Q-2022 2Q-2022 45.8% 3Q-2022 47.8% 4Q-2022 45.7% 1Q-2023 Unfunded Commitment Utilization WAR Outstanding Principal ($MM) Excludes PPP loans; Outstanding Principal excludes unearned fees and discounts/premiums ($ millions) 24 Investor Presentation | First Quarter 2023 trico bancshares#25Loan Yield Composition 97% of Floating benchmarked to Prime $811 8.74% 8.68% Monthly (Floating) $226 Predominantly benchmarked to 5 Year Treasury Floating 13% Adjustable 43% 56% Adjustable + Floating 7.41% O 6.52% O 6.52% 6.52% O 6.34% 6.37% 5.53% < 1 Year $272 4.88% 4.77% 4.33% 4.18% 4.24% 1-2 Years ■Adjustable Loans, Principal Outstanding ($MM) $394 2-3 Years $597 3-4 Years ●Adj Wtd Avg Rate $660 4-5 Years O Adj Wtd Avg Rate if Repriced 03/31/2023 $686 > 5 Years ➤ Dollars in millions, excludes PPP as well as unearned fees and accretion/amortization therein Wtd Avg Rate (weighted average rate) as of 03/31/2023 and based upon outstanding principal; Next Reprice signifies either the next scheduled reprice date or maturity. 25 Investor Presentation | First Quarter 2023 Fixed 44% trico bancshares#26Allowance for Credit Losses Drivers of Change under CECL Scaled to reflect $90MM 26 $105,680 ($450) ($1,588) 1.64% Loan decline of $28 million Q1 of Total Loans $639 $4,126 $108,407 Gross charge-offs $1.758 million Gross recoveries $0.170 million Reduction in Criticized & Classified loans of $9.0 million Excludes gross charge-offs Continued low loss experience offset by increases in factors for Unemployment Outlook and US Policy Uncertainty 1.69% of Total Loans ACL 12/31/2022 Portfolio Growth Charge Offs Criticized & Classified Reserve Rates ACL 3/31/2023 & Recoveries Investor Presentation | First Quarter 2023 trico bancshares#27Allowance for Credit Losses Allocation of Allowance by Segment ($ Thousands) Allowance for Credit Losses CECL Adoption January 1, 2020 December 31, 2022 Loans (Excl LHFS) ACL Amount ACL % of Loans Loans (Excl LHFS) ACL Amount March 31, 2023 ACL % of Loans Loans ACL ACL % of (Excl LHFS) Amount Loans Commercial real estate: CRE non-owner occupied CRE owner occupied Multifamily $ 1,609,556 $ 546,434 12,649 4,308 0.79% 0.79% $ 2,149,725 $ 984,807 517,725 5,633 1.09% 944,537 30,962 14,014 1.42% 13,132 1.39% 1.44% $ 2,161,059 $ 32,963 1.53% 971,210 14,559 1.50% 946,693 13,873 1.47% Farmland 145,067 1,253 0.86% 280,014 3,273 1.17% 274,997 3,542 1.29% Total commercial real estate loans $ 2,818,782 $ 23,843 0.85% $ 4,359,083 $ 61,381 1.41% $ 4,353,959 $ 64,937 1.49% Consumer: SFR 1-4 1st DT $ 509,508 $ SFR HELOCs and junior liens Other 362,886 Total consumer loans $ 82,656 955,050 $ 4,981 10,821 2,566 3.10% 0.98% 2.98% $ 790,349 $ 11,268 1.43% 393,666 11,413 2.90% 56,728 1,958 3.45% $ 803,407 $ 375,591 54,799 11,920 1.48% 10,914 2.91% 2,062 3.76% 18,368 1.92% $ 1,240,743 $ 24,639 1.99% $ 1,233,797 $ 24,896 2.02% Commercial and industrial $ 249,791 $ 2,906 1.16% $ 569,921 $ 13,597 2.39% $ 553,098 $ 12,069 2.18% Construction 249,827 4,321 1.73% 211,560 5,142 2.43% 225,996 5,655 2.50% Agriculture production 32,633 82 0.25% 61,414 906 1.48% 47,062 833 1.77% Leases 1,283 9 0.70% 7,726 15 0.19% 8,509 17 0.20% Total Loans and ACL $ 4,307,366 $ 49,529 1.15% $ 6,450,447 $ 105,680 1.64% $ 6,422,421 $ 108,407 1.69% Reserve for Unfunded Loan Commitments Allowance for Credit Losses $ 4,307,366 $ 2,775 52,304 4,315 4,195 1.21% Discounts on Acquired Loans Total ACL Plus Discounts $ 4,307,366 $ 33,033 85,337 $ 6,450,447 $ 109,995 30,488 1.71% $ 6,422,421 $ 112,602 1.75% 29,092 1.98% $ 6,450,447 $ 140,483 2.18% $ 6,422,421 $ 141,694 2.21% ➤ Municipal loans included in Commercial and industrial segment within the presented table 27 Investor Presentation | First Quarter 2023 trico bancshares#2828 Risk Grade Migration 1.0% 1.1% 0.8% 0.8% 1.1% 1.0% Special Mention (NBV) 2.5% 1.6% 2.1% 1.8% 2.0% 2.0% Q1-2022 Q1-2023 7.8% 9.3% 9.5% 9.7% 8.0% 9.2% Pool % (min) # Loans % (min) # Loans Diff (min) # Loans CRE Non-Owner Occupied 2.2% $35.3 24 2.5% $54.4 29 $19.2 5 CRE-Owner Occupied 3.3% $23.4 16 2.7% $26.5 18 $3.1 2 Agriculture & Farmland 7.3% $16.4 9 5.2% $16.7 22 $0.3 13 SFR 1-4 Term 1.4% $9.3 32 1.7% $13.3 29 $4.1 -3 SFR HELOC and Junior Liens 1.2% $4.2 85 0.2% 50.7 17 -$3.5 -68 Commercial & Industrial 1.9% $4.8 31 2.4% $13.4 30 $8.6 -1 Construction 11.4% $25.4 2 0.0% $0.0 0 -$25.4 -2 Auto & Other 1.1% 50.7 135 0.8% $0.4 38 -50.3 -97 Leases 0.0% $0.0 0 Grand Total 2.4% $119.4 334 0.0% $0.0 2.0% $125.5 183 2 $0.0 2 $6.1 -151 89.6% 87.2% 87.6% 87.8% 89.0% Substandard/Doubtful/Loss (NBV) 87.8% Pool CRE Non-Owner Occupied CRE-Owner Occupied % 0.5% Q1-2022 (min) # Loans $8.4 13 Q1-2023 Diff 1.0% $7.1 11 Multifamily 0.0% $0.1 1 Agriculture & Farmland 7.7% $17.3 13 % (min) #Loans 0.2% $3.6 2.2% $20.9 0.0% 50.1 5.8% $18.5 (min) #Loans 8 13 -$4.8 -5 $13.8 572 1 $0.0 0 20 $1.3 7 SFR 1-4 Term 1.0% $6.5 40 0.6% $4.5 38 -$2.0 -2 SFR HELOC and Junior Liens 1.3% $4.5 75 1.0% 53.8 68 -50.7 -7 Commercial & Industrial 1.1% $2.8 63 2.1% $11.8 59 59.0 -4 Construction 0.3% $0.6 22 0.2% $0.6 3 $0.0 -19 Auto & Other 0.6% $0.4 40 4Q-2021 ■Pass 1Q-2022 2Q-2022 3Q-2022 4Q-2022 ■Watch ■Special Mention 1Q-2023 Substandard Leases 0.0% $0.0 Grand Total 1.0% $47.6 5 283 0.4% $0.2 0.0% 21 -$0.2 -19 1.0% $0.0 $64.0 5 $0.0 0 231 $16.4 -52 Investor Presentation | First Quarter 2023 ➤ Zero balance in Doubtful and Loss trico bancshares#2929 9 139% 202% Coverage Ratio: Allowance as % of Non-Performing Loans Asset Quality ➤ Net charge offs of $1.6MM related to previously identified specific reserves, while forward-looking Q factors drove increased allowance. Over the past three years both the Bank's total non-performing assets and coverage ratio have remained better than peers. Non-Performing Assets as a % of Total Assets 0.73% 0.75% 0.73% TCBK Peers 0.68% 0.64% 0.62% 0.58% Q.53% 0.54% 0.55% 0.51% 0.50% 0.42% 0.38% 0.38% 0.37% 0.38% 0.30% 0.31% 0.33% 0.25% 0.21% 0.17% 0.15% 0.20% 2020 2020 2020 2020 Q1 Q2 Q3 Q4 2021 Q1 2021 2021 2021 2022 2022 Q2 Q3 Q4 Q1 2022 2022 2023 Q2 Q3 Q4 Q1 TCBK Peers 385% 395% 342% 343% 297% 293% 281% 263% Investor Presentation | First Quarter 2023 191% 179% 187% 194% 197% 690% 831% 2020 Q1 2020 Q2 2020 Q4 2021 Q2 2021 Q3 2021 Q4 2022 Q1 2022 Q2 2022 Q3 2022 Q4 2023 Q1 2020 Q3 2021 Q1 Peer group consists of 99 closest peers in terms of asset size, range $6.0-13.7 Billion, source: BankRegData.com NPA and NPL ratios displayed are net of guarantees 210% 217% 309% 322% trico bancshares 586% 304% 501% 686%#30+0.11% +0.76% +0.25% -0.13% 70 CHANGE 0.11 PRICE $53.60 CHANGE +0.06 PRICE $1,515.31/ CHANGE 11.48 PRICE $44.70 / CHANGE +0.11 PRICE $59.75 CHANGE -0.08 Financials +0.76% PRICE $115.33/ CHANGE +11.50 trico bancshares 30 0 Investor Presentation | First Quarter 2023 Nasdaq TCBK +0.1 CHANGE +0.15 PRICE $80.18 PRICE $33.29 HVELAYU Counties tri A bank EST. CHICO, CALIFORNIA 1975 trico bancshares#3131 Net Interest Income (NII) and Margin (NIM) 4Q22 to 1Q23 Reported Net Interest Income (NII) & NIM Walk NII $ in millions, NIM change in bps, all full taxable equivalent (FTE) Int Income (FTE) Net Int Income (FTE) NIM (FTE) NII NIM $103.4 $103.3 4Q22 $99.3 4.34% $96.8 $99.3 $87.4 Market rate changes - earning assets 3.1 11 $94.5 $93.7 Loan balances / mix 0.7 3 $85.4 $69.5 4.34% $68.2 4.21% 4.02% Loan deferred fees 3.67% 3.39% 1Q22 2Q22 3Q22 4Q22 1Q23 1Q23 Securities portfolio balances / mix (0.3) (1) (0.7) (3) Interest-bearing cash volume (0.7) (3) Borrowings (2.5) (9) Deposit rate changes (3.0) (11) Day Count (2.2) $93.7 4.21% Investor Presentation | First Quarter 2023 trico bancshares#3232 32 Net Interest Income (NII) and Margin (NIM) 1Q22 to 1Q23 Reported Net Interest Income (NII) & NIM Walk NII $ in millions, NIM change in bps, all full taxable equivalent (FTE) Int Income (FTE) Net Int Income (FTE) ⚫NIM (FTE) NII NIM $103.4 $103.3 1Q22 $68.2 3.39% $96.8 $99.3 $87.4 Market rate changes - earning assets 19.0 61 $94.5 $93.7 Loan balances / mix 15.3 49 $85.4 $69.5 4.34% $68.2 4.21% 4.02% Loan deferred fees 3.67% 3.39% 1Q22 2Q22 3Q22 4Q22 1Q23 1Q23 Securities portfolio balances / mix 0.8 2 (1.0) (3) Interest-bearing cash volume (0.3) (1) Borrowings (3.8) (12) Deposit rate changes (4.5) (14) Day Count (0.0) $93.7 4.21% Investor Presentation | First Quarter 2023 trico bancshares#33Current Operating Metrics Net Interest Margin (FTE) Efficiency Ratio 4.47% 4.22% 4.30% 4.21% 3.96% 3.88% 3.58% 65.4% 63.7% 59.7% 58.4% 53.2% 53.0% 50.3% 33 2017 2018 2019 2020 2021 2022 2023 2017 2018 2019 2020 2021 2022 2023 PPNR as % of Average Assets 2.18% 1.94% 1.91% 1.97% 1.83% 1.70% 1.73% ROAA 1.43% 1.43% 1.47% 1.28% 1.24% 0.89% 0.91% 2017 2018 2019 2020 2021 2022 2023 2017 2018 2019 2020 2021 2022 2023 2023 values through quarter ended 3/31/2023, annualized Investor Presentation | First Quarter 2023 trico bancshares#3434 Well Capitalized Tier 1 Capital Ratio 14.4% 14.2% 14.0% 13.7% 13.2% CET1 Ratio 13.3% 13.2% 12.9% 12.5% 12.7% 12.4% 11.7% 12.0% 11.7% 2017 2018 2019 2020 2021 2022 2023 2017 2018 2019 2020 2021 2022 2023 Total Risk Based Capital Tangible Capital Ratio 10.6% 15.4% 15.1% 15.2% 14.8% 14.4% 14.1% 14.2% 9.3% 9.5% 9.3% 9.2% 8.1% 7.6% 2016 2017 2018 2019 2020 2021 2022 2017 2018 2019 2020 2021 2022 2023 2023 values at quarter ended 3/31/2023 Investor Presentation | First Quarter 2023 trico bancshares#35tri counties bank Trico Bancshares is commited to: Improving the financial success and well-being of our shareholders, customers, communities and employees.