Tri Counties Bank
Annual Report 2023

Plain-text annual report

Member FDIC Dear Fellow Shareholders:  Almost fifty years ago, a group of farmers and businessmen who were frustrated by the lack of attention  and the antics of the big banks (some things never change) got together to start a new bank in Chico,  California.  With a lot of enthusiasm, determination, a single branch, and a capital raise of just $1  million, they opened Tri Counties Bank in March 1975 and became one of the more than 14,000 banks  competing in the US at that time.  To say that our communities, customers and our Company have seen  much change and challenges over the past fifty years is, of course, a vast understatement.  We hope  each of you views this as a testament to the central role that Tri Counties Bank has played in supporting  our customers, communities and employees and just as importantly, that our ability to weather business  cycles continues to give you confidence in our future.  During our almost 50 years in business, our  Company has had only two CEOs and we view this continuity and consistency as an important and  strategic asset.  In last year’s letter, I briefly touched on the dramatic rise in interest rates that was underway following  the COVID pandemic.  While most investors and industry pundits have moved on to the next headline  event, I recall it now only because I believe there are story lines that have not yet fully played out.  Many  have dismissed or forgotten the proximate cause of those higher rates: underlying inflation driven by  billions of dollars of US Government spending and economic stimulus payments.  As the Federal Reserve  remains committed to battling inflation and pursuing a soft landing, the lingering effects of higher  interest rates are being manifested across the economy and the banking industry.  The full resolution  will likely take years.  Let’s all remember that there are generations of bank customers who’ve never  seen a 5.00% rate on a certificate of deposit or the prime rate at 8.50% (for historical perspective, the  last time the prime rate was 8.50% was more than 20 years ago).  Below are a few areas where both borrowers and depositors – our customers – are adapting to higher  interest rates.  Lingering Impact of Rising Rates – A Challenging Market . . . But Opportunity  The dramatic increase in interest rates in 2022 and 2023 was driven by an equally dramatic increase in  inflation.  Food, energy, wages and virtually every commodity pushed costs higher for consumers and  businesses.  Fortunately, real estate values and overall employment continue to be resilient and are  important signs of economic vitality.  Some sectors will continue to be challenged as the effects of  higher interest rates take hold, but these challenges also hold opportunity for TriCo.    Housing affordability, for example, continues to be a struggle in most communities across California and  is an even more pressing challenge for first‐time buyers and families.  There’s no question that one of  the most valuable assets a consumer can have today is a 3%, 30‐year mortgage; and deciding to move  up to a bigger or newer house with mortgage rates at 7% or more quickly becomes financially untenable  for many consumers.  As the bank for communities both large and small across California, we are ardent  supporters of growth in the supply of housing; it is a key foundational element of all strong  communities.  Since the initial outbreak of COVID in 2020, the continuing pivot to a remote or hybrid workforce simply  means fewer people in the office on any given day – particularly in large, metro areas.  As the need for  large office space decreases, there could be downward pressure on rents and, ultimately, on commercial  real estate (CRE) values, particularly in urban markets.  Fortunately, community banks are not the  primary source of financing for large office properties, and while a decline in office building values in  large cities can depress values in other CRE segments, we believe our well‐diversified portfolio (across a  variety of segments and California geographies) will continue to perform well.              For the first time in several years, bank depositors faced choices that weren’t solely driven by  convenience.  Bank failures in March of 2023 and short‐term interest rate increases of more than 500  basis points resulted in a shift in consumer awareness and behavior. Suddenly, the idea of bank safety  and earning a return on their funds became their primary concerns.  These forces continue to affect  bank balance sheets by driving deposit costs higher.  While margins will likely be under some pressure  until each bank’s balance sheet adjusts to higher rates, comparatively, we believe our historically strong  deposit franchise will continue to shine.  More importantly, our deposit base is a significant source of  strength and positions us well for future organic growth and acquisition opportunities.   While higher interest rates will create challenges and reveal opportunities for TriCo over the next few  years, it’s impossible to ignore the potential impact of government deficits on both the cost and  availability of capital for the private sector.  We are hopeful that a more rational fiscal perspective lies  ahead.  Financial Highlights  TriCo Bancshares reported net earnings of $117.4 million, or $3.52 per diluted share for 2023.  This  compares with net earnings of $125.4 million and $3.83 per diluted share in 2022.  The rise in interest  rates that began in 2022 and continued into 2023 caused a dramatic increase in the cost of deposits for  all banks, including Tri Counties Bank.  The main driver of our financial performance and that of most  banks, is net interest income, which is the result of the rate we earn on loans and securities (or interest  income), less interest expense (or the rate we pay for deposits and funds we borrow).  In 2023, our top  line revenue, or total interest and dividend income increased 23.3% to more than $356 million, driven  primarily by increasing interest rates.  Net interest income, however, increased only 3.1% over 2022 as a  result of rising rates on the cost of deposits and borrowed funds.  As interest rates stabilize and as we  contemplate the Federal Reserve maintaining interest rates at a level that is “higher for longer”, we will  likely continue to see pressure on our funding costs and ultimately, our net interest income. Our results  in 2023 were not what we would expect from ourselves in an ordinary environment but, at the same  time, they reflect the core operating strengths and extraordinary potential of our banking franchise and  our conservative banking philosophy.  As I mentioned previously, the changing workplace continues to keep bank investors on edge as they  attempt to understand the impact of real estate value changes on bank loan portfolios.  In addition,  interest rates on much of the CRE‐related debt on bank balance sheets will likely reset higher – that is,  the interest rates will adjust to current rates over the next two to three years.  We continue to  underwrite conservatively and consider the impact of higher rates and the variability of the real estate  market in our assessment of each borrower.  While the broader real estate market is showing an  increase in borrower stress in certain segments, we are not seeing signs of systemic deterioration either  in our portfolio or across the banking industry.  Our net charge‐offs, for example, were just 10 basis  points in 2023 and are indicative of what most bankers would describe as “lower than normal” for a  non‐recessionary environment.  However, as a reflection of our continued caution, we continue to  maintain an allowance for credit losses of 1.79% of total loans, up from 1.64% at the end of 2022 and a  level that continues to exceed our peer banks.  We remain committed to our philosophy of broad  geographic and industry diversification along with strong controls, reserves, and portfolio management.    Always Positioning Ourselves For Our Future  In February of this year, we raised our quarterly dividend to $0.33 per share.  This represents an  increase of 10% over the prior quarter and was the 138th consecutive quarterly dividend paid by TriCo.   Dividends have continued to grow consistently – increasing, on average, more than 10% annually over  the last ten years.            TriCo Bancshares Dividend Growth  A few years ago, I wrote to you that our Company had crossed two important milestones – net earnings  of more than $100 million in a single year and, just as important, total shareholders’ equity of more than  $1 billion, both for the first time in our history.  The pandemic and economic volatility over the past few  years continue to reinforce the importance and value of staying power.  We’ve continued to grow our  capital base – in fact, our growth in shareholders’ equity has exceeded 16.0% annually for the past ten  years to $1.16 billion at the end of 2023.  Our stewardship of this critical resource is fundamental to  success in our business, whether it be through our dividend policy or retaining earnings for future  growth and is always top of mind.  TriCo’s management continues to ensure that we have adequate  capital and liquidity resources to fund growth and have the staying power to stand alongside our  customers and communities during difficult economic periods.  Humble Beginnings and Continued Determination  While the changes since our founding in 1975 have been numerous – the number of banks in the US  now numbers just over 4,000 ‐ our team is just as enthusiastic about the opportunity of our mission in  2024 and the years ahead.  From a single office on Pillsbury Road in 1975 to now serving more than  250,000 customers across 28 counties in California, we are well aware that having our customers  recognize us as the #1 community bank in California is the cornerstone of everything we do.  We have  the best employees in the business and are fortunate to have had the trust of our customers and the  communities we serve for almost fifty years.  We look forward to celebrating our 50th anniversary with  all of you in March 2025.  As always, and on behalf of our more than 1,200 employees and our board of directors, I thank you for  your continued confidence in, and ongoing support of, TriCo Bancshares.  Richard P. Smith  Chairman, President & Chief Executive Officer                [This page intentionally left blank.] UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 _____________________ FORM 10-K _____________________ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2023 Commission File Number 0-10661 _____________________ (Exact name of Registrant as specified in its charter) _____________________ California (State or other jurisdiction of incorporation or organization) 63 Constitution Drive, Chico, California (Address of principal executive offices) 94-2792841 (I.R.S. Employer Identification No.) 95973 (Zip Code) Registrant’s telephone number, including area code: (530) 898-0300 Securities registered pursuant to Section 12(b) of the Act: Title of each class Common Stock Trading Symbol(s) TCBK Name of exchange on which registered NASDAQ Securities registered pursuant to Section 12(g) of the Act: None. __________________ Indicate by check mark whether the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. ☒ Yes ☐ No Indicate by check mark whether the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. ☐ Yes ☒ No Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter periods that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ☒ Yes ☐ No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). ☒ Yes ☐ No Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “accelerated filer”, “large accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. Large accelerated filer Non-accelerated filer ☒ ☐ Accelerated filer Smaller reporting company Emerging growth company ☐ ☐ ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b) ☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ☐ Yes ☒ No The aggregate market value of the voting common stock held by non-affiliates of the Registrant, as of June 30, 2023, was approximately $1.4 billion. The number of shares outstanding of Registrant’s common stock, as of February 23, 2024, was 33,268,102. DOCUMENTS INCORPORATED BY REFERENCE The information required to be disclosed pursuant to Part III of this report either shall be (i) deemed to be incorporated by reference from selected portions of the Registrant’s definitive proxy statement for the annual meeting of shareholders to be held on May 23, 2024, if such proxy statement is filed with the Securities and Exchange Commission pursuant to Regulation 14A not later than 120 days after the end of the Registrant’s most recently completed fiscal year, or (ii) included in an amendment to this report filed with the Commission on Form 10-K/A not later than the end of such 120 day period. TABLE OF CONTENTS Page Number PART I Item 1 Business Item 1A Risk Factors Item 1B Unresolved Staff Comments Item 1C Cybersecurity Item 2 Item 3 Item 4 PART II Item 5 Item 6 Item 7 Properties Legal Proceedings Mine Safety Disclosures Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities [Reserved] Management’s Discussion and Analysis of Financial Condition and Results of Operations Item 7A Quantitative and Qualitative Disclosures About Market Risk Item 8 Item 9 Financial Statements and Supplementary Data Changes in and Disagreements with Accountants on Accounting and Financial Disclosure Item 9A Controls and Procedures Item 9B Other Information Item 9C Disclosure Regarding Foreign Jurisdictions that Prevent Inspections PART III Item 10 Directors, Executive Officers and Corporate Governance Item 11 Executive Compensation Item 12 Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters Item 13 Certain Relationships and Related Transactions, and Director Independence Item 14 Principal Accountant Fees and Services PART IV Item 15 Exhibits and Financial Statement Schedules Item 16 Form 10-K Summary Signatures 2 10 24 25 26 26 27 28 28 28 53 54 110 110 110 110 111 111 111 111 111 112 114 115 The following listing provides a comprehensive reference of common acronyms and terms used throughout the document: GLOSSARY OF ACRONYMS AND TERMS ACL AFS AOCI ASC Allowance for Credit Losses Available-for-Sale Accumulated Other Comprehensive Income Accounting Standards Codification CARES Coronavirus Aid, Relief and Economic Security Act CDs CDI CECL Certificates of Deposit Core Deposit Intangible Current Expected Credit Loss COVID-19 Coronavirus Disease CRE CMO DFPI FASB FDIC FHLB FRB FTE GAAP HELOC HTM LIBOR NIM NPA OCI PCD PPP ROUA RSU SBA SERP SFR SOFR TDR VRB XBRL Commercial Real Estate Collateralized mortgage obligation State Department of Financial Protection and Innovation Financial Accounting Standards Board Federal Deposit Insurance Corporation Federal Home Loan Bank Federal Reserve Board Fully taxable equivalent Generally Accepted Accounting Principles (United States of America) Home equity line of credit Held-to-Maturity London Interbank Offered Rate Net interest margin Nonperforming assets Other comprehensive income Purchase Credit Deteriorated Paycheck Protection Program Right-of-Use Asset Restricted Stock Unit Small Business Administration Supplemental Executive Retirement Plan Single Family Residence Secured Overnight Financing Rate Troubled Debt Restructuring Valley Republic Bancorp eXtensible Business Reporting Language CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS In addition to historical information, this Annual Report on Form 10-K contains forward-looking statements about TriCo Bancshares (the “Company,” “TriCo” or “we”) and its subsidiaries for which it claims the protection of the safe harbor provisions contained in the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on the current knowledge and belief of the Company’s management (“Management”) and include information concerning the Company’s possible or assumed future financial condition and results of operations. When you see any of the words “believes”, “expects”, “anticipates”, “estimates”, or similar expressions, these generally indicate that we are making forward-looking statements. A number of factors, some of which are beyond the Company’s ability to predict or control, could cause future results to differ materially from those contemplated. Forward looking 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 conditions of the United States economy in general and the strength of the local economies in which we conduct operations; the impact of any future federal government shutdown and uncertainty regarding the federal government’s debt limit or changes in, trade, monetary and fiscal policies and laws, including interest rate policies of the Board of Governors of the Federal Reserve System; the impacts of inflation, interest rate, market and monetary fluctuations on the Company's business condition and financial operating results; the impact of changes in financial services industry policies, laws and regulations; regulatory restrictions affecting our ability to successfully market and price our products to consumers; the risks related to the development, implementation, use and management of emerging technologies, including artificial intelligence and machine learning; extreme weather, natural disasters and other catastrophic events that may or may not be caused by climate change and their effects on the Company's customers and the economic and business environments in which the Company operates; the impact of a slowing U.S. economy and decreases in housing and commercial real estate prices, potentially increased unemployment on the performance of our loan portfolio, the market value of our investment securities and possible other-than-temporary impairment of securities held by us due to changes in credit quality or rates; 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, wars, terrorism or geopolitical events; 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 activities, or identify and complete favorable transactions in the future, and/or realize the anticipated financial and business benefits; 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 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 assumptions made under our 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 managing the mix of earning assets and 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; 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; increasing noninterest expense and its impact on our financial performance; competition and innovation with respect to financial products and services by banks, financial institutions and non-traditional competitors including retail businesses and technology companies; the challenges of attracting, integrating and retaining key employees; 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; the impact of the recent cyber security ransomware incident on our operations and reputation; increased data security risks due to work from home arrangements and email vulnerability; failure to safeguard personal information, and any resulting litigation; the effect of a fall in stock market prices on our brokerage and wealth management businesses; the transition from the LIBOR to new interest rate benchmarks; the emergence or continuation of widespread health emergencies or pandemics; the costs and effects of litigation and of unexpected or adverse outcomes in such litigation; and our ability to manage the risks involved in the foregoing. See also factors listed at Item 1A Risk Factors, in this report. You should carefully consider the factors discussed below, and in our Risk Factors or other disclosures, in evaluating these forward-looking statements. Annualized, pro forma, projections and estimates are not forecasts and may not reflect actual results. All forward-looking statements speak only as of the date they are made and are based on information available at that time. Forward-looking statements speak only as of the date they are made, and the Company does not undertake to update forward-looking statements to reflect circumstances or events that occur after the date the forward-looking statements are made, whether as a result of new information, future developments or otherwise, except as required by federal securities laws. As forward-looking statements involve significant risks and uncertainties, caution should be exercised against placing undue reliance on such statements. ITEM 1. BUSINESS Overview PART I TriCo Bancshares is a registered bank holding company under the Bank Holding Company Act of 1956, as amended (the “BHC Act”). TriCo's principal business is to serve as the holding company for our wholly-owned subsidiary, Tri Counties Bank, a California-chartered commercial bank (the “Bank”). TriCo is a California corporation and was incorporated in 1981. Our common stock is traded on the Nasdaq Global Select Market under the trading symbol "TCBK". The Company and the Bank are headquartered in Chico, California. As a bank holding company, TriCo is subject to the supervision of the Board of Governors of the Federal Reserve System (the “FRB”) under the BHC Act. The Bank is subject to the supervision of the California Department of Financial Protection & Innovation (the “DFPI”) and the Federal Deposit Insurance Corporation (the "FDIC"). See “Regulation and Supervision.” In addition, TriCo has five capital trusts, which are all wholly-owned trust subsidiaries formed for the purpose of issuing trust preferred securities (“Trust Preferred Securities”) and lending the proceeds to TriCo. For more information regarding the trust preferred securities please refer to “Note 14 – Junior Subordinated Debt” to the consolidated financial statements at Part II, Item 8 of this report. Additional Information Our executive offices are located at 63 Constitution Drive, Chico, California 95973, and our telephone number is (530) 898-0300. Additional information concerning the Company can be found on our website at www.tcbk.com. Copies of our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to these reports are available free of charge through the investors relations page of our website, www.tcbk.com/about/investor-relations, as soon as reasonably practicable after the Company files these reports with the U.S. Securities and Exchange Commission (“SEC”). The information on our website is not part this annual report. Tri Counties Bank The Bank was organized in 1975 and had total assets of approximately $9.9 billion at December 31, 2023. Based in Chico, California, the Bank offers an extensive and competitive breadth of consumer, small business and commercial banking services through its network of stand-alone and in-store branches in communities throughout California. The Bank focuses on relationships and personal contact, emphasizing its Service with Solutions ®. In addition to its California community bank network, the Bank provides advanced online and mobile banking, a shared nationwide network of over 40,000 surcharge-free ATMs, and bankers available by phone 7 days per week. The Bank provides a breadth of personal, small business and commercial financial services including accepting demand, savings and time deposits and making small business, commercial, real estate, and consumer loans, as well as a range of treasury management services and other customary banking services including safe deposit boxes at some branches. Brokerage services are provided at the Bank’s offices by Tri Counties Wealth Management Advisors through the Bank’s arrangement with Raymond James Financial Services, Inc., an independent financial services provider and broker-dealer. The Bank offers a variety of banking and financial services to both personal, small business and commercial customers. In many instances the owners or stakeholders of the business and commercial customers are also personal customers. The industries that we serve are diverse in both number and type and include, but are not limited to, manufacturing, real estate development, retail, wholesale, transportation, agriculture, commerce, oil & gas, and professional services. The majority of the Bank’s loans are direct loans made to individuals and businesses in California where its branches or business lending centers are located. At December 31, 2023, the Bank’s consumer loans net of deferred fees outstanding were $1.3 billion (19.3%), commercial and industrial loans outstanding were $586.5 million (8.6%), real estate construction loans of $347.2 million (5.1%), and commercial real estate loans were $4.4 billion (64.7%) of total loans. The Bank takes real estate, listed and unlisted securities, savings and time deposits, automobiles, machinery, equipment, inventory, accounts receivable and notes receivable secured by property as collateral for loans. Most of the Bank’s deposits are from individuals and business-related sources. No single person or group of persons provides a material portion of the Bank’s deposits, the loss of any one or more of which would have a materially adverse effect on the business of the Bank, nor is a material portion of the Bank’s loans concentrated within a single industry or group of related industries. Acquisition of Valley Republic Bancorp On March 25, 2022, the Company acquired Valley Republic Bancorp and its subsidiary Valley Republic Bank ("VRB") in a merger transaction in which the Company issued approximately 4.1 million shares of common stock valued at approximately $174.4 million based on the closing stock price of TriCo common stock of $42.48 on March 25, 2022 in addition to approximately $431,000 in cash paid out for settlement of stock option awards. At the time of the acquisition, VRB merged with and into the Bank. VRB was headquartered in Bakersfield, California, and operated four branch locations in and around Bakersfield, and a loan production office in Fresno, California. Human Capital Resources 2 TriCo Bancshares 2023 10-K At December 31, 2023, we employed 1,231 persons. Full time equivalent employees numbered 1,207. Additionally, we at times will utilize temporary personnel to supplement our workforce. None of our employees are presently represented by a union or covered under a collective bargaining agreement. Management believes that its employee relations are good. Our employees are critical to our success and competition for qualified banking personnel has historically been intense; therefore our corporate culture is an important element of our board of director's oversight of risk. Senior management is responsible for embodying, maintaining, and communicating our culture to employees. In that regard, our culture is designed to promote our commitment to improving the livelihood of our employees and guides us in making decisions throughout the Company. Our culture is designed to adhere to TriCo’s values of trust, respect, integrity, communication and opportunity. In keeping with that culture, we expect our people to treat each other and our customers with the highest level of honesty and respect and to do the right thing. We strive to be a force for good in everyday life. We dedicate resources to promote a safe and inclusive workplace; attract, develop and retain talented, diverse employees; promote our values; and reward and recognize employees for both the results they deliver and, importantly, how they deliver them. We provide a wide variety of opportunities for professional growth for all employees with a focus on in-classroom and on-line trainings, on-the-job experience, internal and external development opportunities and education tuition assistance. We seek to create an engaged workforce through proactive listening, forward-looking career conversation and constructive dialogue through frequent and ongoing performance discussions as well as employee engagement and exit surveys. We focus on attracting and retaining employees by providing compensation and benefits packages that we believe are competitive within the applicable market, taking into account the position’s location and responsibilities. We provide competitive health and other benefits focused on physical and financial health, including employer subsidized health insurance, robust wellness initiatives, employee assistance programs, a 401(k) retirement plan and an employee stock ownership plan. In addition, we offer a portfolio of additional services and tools to support our employees’ health and well-being. We encourage our team members to share their talents in their communities through volunteer activities in education, economic development, human and health services, and community reinvestment. During 2023, our team members logged more than 11,000 volunteer hours, supporting nearly 400 organizations, and more than 3,700 of those hours were for the benefit of community development efforts to support programs and services to low- or moderate-income communities. While we believe that the diversity of our employees generally represents and reflects the communities which we serve, we recognize and continue to promote the need for diversity enhancements in leadership roles throughout the Company. We are dedicated to providing a workplace for our employees that is inclusive, supportive, and free of any form of discrimination or harassment; rewarding and recognizing our employees based on their individual results and performance as well as that of their department and the Company overall; and recognizing and respecting all of the characteristics and differences that make each of our employees unique. Competition The banking business in California generally is highly competitive with respect to both loans and deposits. It is dominated by a relatively small number of national and regional banks with many offices operating over a wide geographic area, with the more metropolitan areas that we serve having a larger number of national and regional banks than the rest of our footprint. Among the advantages such major banks have over the Bank are their greater ability to finance investments in technology and marketing campaigns and to allocate their investment assets to regions of high yield and demand. By virtue of their greater total capitalization, such institutions also have substantially higher lending limits than the Bank. In addition to competing with other banks, the Bank competes with savings institutions, credit unions, brokerage firms and the financial markets for funds. Yields on corporate and government debt securities and other commercial paper may be higher than on deposits, and therefore affect the ability of commercial banks to attract and hold deposits. We also compete for available funds with money market instruments and mutual funds. During periods of high or rising interest rates, money market funds have provided substantial competition to banks for deposits and they may continue to do so in the future. Mutual funds are also a major source of competition for savings dollars. As the financial services industry becomes increasingly oriented toward technology-driven delivery systems, we face competition from banks and non-bank institutions without offices in our primary service area. We also increasingly compete with financial technology or “fintech” companies for loans and other financial services customers. To compete effectively, the Bank relies substantially on local promotional activity, personal contacts by its officers, directors, employees and shareholders, extended hours, personalized service and its reputation in the communities it services. Regulation and Supervision General The Company and the Bank are subject to extensive regulation under both federal and state law affecting most aspects of our operations. This regulation is intended primarily for the protection of customers, depositors, the FDIC deposit insurance fund and the banking system as a whole, and not for the protection of our shareholders. Set forth below is a summary description of the significant laws and regulations applicable to the Company and the Bank. The description is qualified in its entirety by reference to the applicable laws and regulations. Regulatory Agencies 3 TriCo Bancshares 2023 10-K The Company is a legal entity separate and distinct from the Bank and its other subsidiaries. As a bank holding company, the Company is regulated under the BHC Act, and is subject to supervision, regulation and examination by the FRB. The Company is also under the jurisdiction of the SEC and is subject to the disclosure and regulatory requirements of the Securities Act of 1933 and the Securities Exchange Act of 1934, each administered by the SEC. The Company’s common stock is listed on the Nasdaq Global Select Market (“Nasdaq”) under the trading symbol “TCBK” and the Company is, therefore, subject to the rules of Nasdaq for listed companies. The Bank is subject to regulation, supervision and periodic examination by the FDIC, which is the Bank’s primary federal regulator and the DFPI. The Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”) created the Consumer Financial Protection Bureau (the “CFPB”) as an independent entity with broad rulemaking, supervisory and enforcement authority over consumer financial products and services. In addition, the CFPB is authorized to investigate consumer complaints and enforce rules related to consumer financial products and services. CFPB regulations and guidance apply to all financial institutions, including the Bank. Banks with $10 billion or more in assets are subject to examination by the CFPB, while banks with less than $10 billion in assets, including the Bank, continue to be examined for compliance with federal consumer laws by their primary federal banking agency. At December 31, 2023, the Company had $9.9 billion in total assets. See the Risk Factors section for a discussion of some of the risks the Bank will encounter when it exceeds $10 billion in assets as of a December 31 annual measurement date. The Bank Holding Company Act The Company is registered as a bank holding company under the BHC Act. In general, the BHC Act limits the business of bank holding companies to banking, managing or controlling banks and other activities that the FRB has determined to be so closely related to banking as to be a proper incident thereto. Qualified bank holding companies that elect to be financial holding companies may engage in any activity, or acquire and retain the shares of a company engaged in additional activities that are either (i) financial in nature or incidental to such financial activity or (ii) complementary to a financial activity, and do not pose a substantial risk to the safety and soundness of depository institutions or the financial system generally, as determined by the FRB. Activities that are financial in nature include securities underwriting and dealing, insurance underwriting and agency, and making merchant banking investments. The Company currently has not elected to become a financial holding company. As a bank holding company, TriCo is required to file reports with the FRB and the FRB periodically examines the Company. A bank holding company is required by law to serve as a source of financial and managerial strength to its subsidiary bank and, under appropriate circumstances, to commit resources to support the subsidiary bank. Bank Acquisitions We are required to obtain prior FRB approval before acquiring more than 5% of the voting shares, or substantially all of the assets, of a bank holding company, bank or savings association. In addition, the prior approval of the FDIC and DFPI is required for a California chartered bank to merge with another bank or purchase the assets or assume the deposits of another bank. In determining whether to approve a proposed bank acquisition, bank regulators will consider, among other factors, the effect of the acquisition on competition, the public benefits expected to be received from the acquisition, capital adequacy and the acquiring institution’s effectiveness in combating money laundering and its record of addressing the credit needs of the communities it serves, including the needs of low- and moderate-income neighborhoods under the Community Reinvestment Act of 1997, as amended ("CRA"). On July 9, 2021, President Biden issued an Executive Order on Promoting Competition in the American Economy. Among other initiatives, the Executive Order encouraged the federal banking agencies to review their current merger oversight practices under the BHC Act and the Bank Merger Act and adopt a plan for revitalization of such practices. There are many steps that must be taken by the agencies before any formal changes to the framework for evaluating bank mergers can be finalized and the prospects for such action are uncertain at this time; however, the adoption of more expansive or prescriptive standards may have a negative impact on any future acquisition activities. Safety and Soundness Standards Under the Federal Deposit Insurance Corporation Improvement Act of 1991 (“FDICIA”), the federal bank regulatory agencies have established safety and soundness standards for insured depository institutions covering internal controls, information systems and internal audit systems; loan documentation; credit underwriting; interest rate exposure; asset growth; compensation (including executive compensation) fees and benefits; and asset quality, earnings and stock valuation. If a federal bank regulatory agency determines that a depository institution fails to meet any standard established by the guidelines, the agency may require the institution to submit to the agency an acceptable plan to achieve compliance with the standard. The agencies may elect to initiate enforcement actions in certain cases rather than relying on a plan, particularly where and institution has failed to comply with an acceptable plan or where a failure to meet one or more of the standards could threaten the safe and sound operation of the institution. Dividends, Distributions and Stock Repurchases A California corporation such as TriCo may make a distribution to its shareholders to the extent that either the corporation’s retained earnings meet or exceed the amount of the proposed distribution or the value of the corporation’s assets exceed the amount of its liabilities plus the amount of shareholders preferences, if any, and certain other conditions are met. It is the FRB’s policy that bank holding companies should generally pay dividends on common stock only out of income available over the past year, and only if prospective earnings retention 4 TriCo Bancshares 2023 10-K is consistent with the organization’s expected future needs and financial condition. In addition, a bank holding company’s ability to pay dividends on its common stock may be limited if it fails to maintain an adequate capital conservation buffer under these capital rules. See “Regulatory Capital Requirements.” In certain circumstances, the Company's repurchases of its common stock may be subject to a prior approval or notice requirement under other regulations, policies or supervisory expectations of the FRB. In August 2022, the Inflation Reduction Act of 2022 (the “IRA”) was enacted. Among other things, the IRA imposes a new 1% excise tax on the fair market value of stock repurchased after December 31, 2022 by publicly traded U.S. corporations. With certain exceptions, the value of stock repurchased is determined net of stock issued in the year, including shares issued pursuant to compensatory arrangements. The primary source of funds for payment of dividends by TriCo to its shareholders has been and will be the receipt of dividends and management fees from the Bank. TriCo’s ability to receive dividends from the Bank is limited by applicable state and federal law. Under the California Financial Code, funds available for cash dividend payments by a bank are restricted to the lesser of: (i) retained earnings or (ii) the bank’s net income for its last three fiscal years (less any distributions to shareholders made during such period). However, with the prior approval of the Commissioner of the DPFI, a bank may pay cash dividends in an amount not to exceed the greatest of the: (1) retained earnings of the bank; (2) net income of the bank for its last fiscal year; or (3) net income of the bank for its current fiscal year. However, if the DPFI finds that the shareholders’ equity of the bank is not adequate or that the payment of a dividend would be unsafe or unsound, the Commissioner may order the bank not to pay a dividend to shareholders. In addition, the Bank’s ability to pay dividends may be limited if the Bank fails to maintain an adequate capital conservation buffer. See “Regulatory Capital Requirements.” The FRB, FDIC and the DPFI have authority to prohibit a bank holding company or a bank from engaging in practices which are considered to be unsafe and unsound. Depending on the financial condition of TriCo and the Bank and other factors, our regulators could determine that payment of dividends or other payments or stock repurchases by TriCo or the Bank might constitute an unsafe or unsound practice. The Community Reinvestment Act The CRA requires the federal banking regulatory agencies to periodically assess a bank’s record of helping meet the credit needs of its entire community, including low- and moderate-income neighborhoods. The CRA also requires the agencies to consider a financial institution’s record of meeting its community credit when evaluating applications for, among other things, domestic branches and mergers or acquisitions. The federal banking agencies rate depository institutions’ compliance with the CRA. The ratings range from a high of “outstanding” to a low of “substantial noncompliance.” A less than “satisfactory” rating could result in the suspension of any growth of the Bank through acquisitions or opening de novo branches until the rating is improved. As of its most recent CRA examination, the Bank’s CRA rating was “Satisfactory." On October 24, 2023, the FRB, OCC and FDIC issued a joint final rule to modernize the CRA regulatory framework. The final rule is intended, among other things, to adapt to changes in the banking industry, including the expanded role of mobile and online banking, and to tailor performance standards to account for differences in bank size and business models. The final rule introduces new tests under which the performance of banks with over $2 billion in assets will be assessed. The new rule also includes data collection and reporting requirements, some of which are applicable only to banks with over $10 billion in assets. Most provisions of the final rule will become effective on January 1, 2026, and the data reporting requirements will become effective on January 1, 2027. We continue to evaluate and adapt as necessary for the impact of the changes. Consumer Protection Laws and Supervision The Bank is subject to many federal consumer protection statutes and regulations, some of which are discussed below. • • • • • The Equal Credit Opportunity Act generally prohibits discrimination in any credit transaction, whether for consumer or business purposes, on the basis of race, color, religion, national origin, sex, marital status, age (except in limited circumstances), receipt of income from public assistance programs, or good faith exercise of any rights under the Consumer Credit Protection Act. The Truth-in-Lending Act is designed to ensure that credit terms are disclosed in a meaningful way so that consumers may compare credit terms more readily and knowledgeably. The Fair Housing Act regulates many practices, including making it unlawful for any lender to discriminate in its housing-related lending activities against any person because of race, color, religion, national origin, sex, handicap or familial status. The Home Mortgage Disclosure Act, which includes a “fair lending” aspect, requires the collection and disclosure of data about applicant and borrower characteristics as a way of identifying possible discriminatory lending patterns and enforcing anti- discrimination statutes. The Real Estate Settlement Procedures Act requires lenders to provide borrowers with disclosures regarding the nature and cost of real estate settlements and prohibits certain abusive practices, such as kickbacks, and places limitations on the amount of escrow accounts. The CFPB has broad rule making authority for a wide range of consumer financial laws that apply to all banks, including, among other things, laws relating to fair lending and the authority to prohibit “unfair, deceptive or abusive” acts and practices. The CFPB has promulgated 5 TriCo Bancshares 2023 10-K many mortgage-related rules, including rules related to requirements for "qualified mortgages," standards by which lenders must satisfy themselves of a borrower's ability to repay a mortgage loan, mortgage servicing standards, disclosure requirements, loan originator compensation standards, high-cost mortgage requirements, HMDA requirements, and appraisal and escrow standards for higher priced mortgages. The mortgage-related rules issued by the CFPB have materially restructured the origination, servicing, and securitization of residential mortgages in the United States. The CFPB has also taken positions on fair lending, including applying the disparate impact theory in auto financing, which could make it harder for lenders, such as the Bank, to charge different rates or apply different terms to loans to different customers. The CFPB’ rules and policies have impacted, and will continue to impact, the business practices of mortgage lenders, including the Bank. We are also subject to certain state consumer protection laws and state attorneys general and other state officials are empowered to enforce certain federal consumer protection laws and regulations. State authorities have increased their focus on and enforcement of consumer protection rules. These federal and state consumer protection laws apply to a broad range of our activities and to various aspects of our business and include laws relating to interest rates, fair lending, disclosures of credit terms and estimated transaction costs to consumer borrowers, debt collection practices, the use of and the provision of information to consumer reporting agencies, and the prohibition of unfair, deceptive, or abusive acts or practices in connection with the offer, sale, or provision of consumer financial products and services. Penalties for violations of the above laws may include fines, reimbursements, injunctive relief and other penalties. Privacy and Data Protection We are subject to a number of U.S. federal, state, local and foreign laws and regulations relating to consumer privacy and data protection. Under privacy protection provisions of the Gramm-Leach-Bliley Act of 1999 ("GLBA") and its implementing regulations and guidance, we are limited in our ability to disclose certain non-public information about consumers to non-affiliated third parties. Financial institutions, such as the Bank, are required by statute and regulation to notify consumers of their privacy policies and practices and, in some circumstances, allow consumers to prevent disclosure of certain personal information to a non-affiliated third party. In addition, such financial institutions must appropriately safeguard their customers’ nonpublic, personal information. Like other lenders, the Bank uses credit bureau data in their underwriting activities. Use of such data is regulated under the Fair Credit Reporting Act (“FCRA”), and the FCRA also regulates reporting information to credit bureaus, prescreening individuals for credit offers, sharing of information between affiliates, and using affiliate data for marketing purposes. Similar state laws may impose additional requirements on the Company and the Bank. Data privacy and data protection are areas of increasing state legislative focus. For example, the California Consumer Privacy Act ("CCPA"), which became effective on January 1, 2020, applies to for-profit businesses that conduct business in California and meet certain revenue or data collection thresholds. The CCPA gives consumers the right to request disclosure of information collected about them, and whether that information has been sold or shared with others, the right to request deletion of personal information (subject to certain exceptions), the right to opt out of the sale of the consumer’s personal information, and the right not to be discriminated against for exercising these rights. In addition, the California Privacy Rights Act (“CPRA”), which took effect on January 1, 2023, significantly modified the CCPA, including imposing additional obligations on covered companies and expanding California consumers’ rights with respect to certain sensitive personal information. The CCPA and CPRA do not provide a blanket exemption for financial institutions, but instead contain a partial exemption for information collected by financial institutions where the information is itself subject to the GLBA (e.g., information about individuals who have obtained personal financial products from the institution). Such information is exempt from the privacy requirements of the CCPA, but, is not exempt from the private right of action conferred if a business fails to implement and maintain reasonable security to protect certain categories of information. In California, the CCPA, the CPRA, and their implementing regulations may be interpreted or applied in a manner inconsistent with our understanding. State regulators have also been increasingly active in implementing privacy and cybersecurity standards and regulations. Recently, several states have adopted regulations requiring certain financial institutions to implement cybersecurity programs and many states, including California, have also recently implemented or modified their data breach notification, information security and data privacy requirements. We expect this trend of state-level activity in those areas to continue and are continually monitoring developments in the states in which our customers are located. Cybersecurity Under a rule adopted by federal banking agencies in 2021, banking organizations are required to notify their primary banking regulator within 36 hours of determining that a “computer-security incident” has materially disrupted or degraded, or is reasonably likely to materially disrupt or degrade, the banking organization’s ability to carry out banking operations or deliver banking products and services to a material portion of its customer base, its businesses and operations that would result in material loss, or its operations that would impact the stability of the United States. Banks' service providers are required to notify any affected bank to or on behalf of which the service provider provides services "as soon as possible" after determining that it has experienced an incident that materially disrupts or degrades, or is reasonably likely to materially disrupt or degrade, covered services provided to such bank for as much as four hours. Recent cyberattacks against banks and other financial institutions that resulted in unauthorized access to confidential customer information have prompted the federal banking regulators to issue guidance on cybersecurity. Among other things, financial institutions are expected to design multiple layers of security controls to establish lines of defense and ensure that their risk management processes address the risks 6 TriCo Bancshares 2023 10-K posed by compromised customer credentials, including security measures to authenticate customers accessing internet-based services. A financial institution also should have a robust business continuity program to recover from a cyberattack and procedures for monitoring the security of third-party service providers that may have access to nonpublic data at the institution. Further, our service providers have obligations to safeguard their systems and sensitive information and the Company may be bound contractually and/or by regulation to comply with the same requirements. If the Company or its service providers fail to comply with applicable regulations and contractual requirements, the Company could be exposed to lawsuits, governmental proceedings or the imposition of fines, among other consequences. Risks and exposures related to cybersecurity attacks, including litigation and enforcement risks, are expected to be elevated for the foreseeable future due to the rapidly evolving nature and sophistication of these threats. as well as due to the expanding use of Internet banking, mobile banking and other technology-based products and services by us and our customers. See "Item 1A. Risk Factors" for a further discussion of risks related to cybersecurity, including the Bank's cybersecurity incident in 2023, and "Item 1C. Cybersecurity" for a further discussion of risk management strategies and governance processes related to cybersecurity. Regulatory Capital Requirements The Company and the Bank are subject to the minimum capital requirements of the FRB and FDIC, respectively. Capital requirements may have an effect on the Company’s and the Bank’s profitability and ability to pay dividends. If the Company or the Bank lacks adequate capital to increase its assets without violating the minimum capital requirements or if it is forced to reduce the level of its assets in order to satisfy regulatory capital requirements, its ability to generate earnings would be reduced. We are subject to the capital framework for U.S. banking organizations known as Basel III. Basel III defines several measures of capital and establishes capital ratios based on a banking organizations levels of capital relative to risk-weighted assets. The risk-weighting of the asset depends on the nature of the asset but generally ranges from 0% for U.S. government and agency securities, to 1,250% for certain trading securitization exposures, resulting in higher risk weights for a variety of asset classes than previous regulations. Under Basel III, the Company (on a consolidated basis) and the Bank are each subject to the following minimum capital ratios: (1) common equity Tier 1 capital or “CET1” to risk-weighted assets of 4.5%; (2) Tier 1 capital (that is, CET1 plus Additional Tier 1 capital) to risk-weighted assets of 6.0%; (3) Total capital (that is, Tier 1 capital plus Tier 2 capital) to risk-weighted assets of 8%; and (4) a leverage ratio (Tier 1 capital to average consolidated assets as reported on regulatory financial statements) of 4.0%. The Basel III capital framework includes a “capital conservation buffer” of 2.5%, composed entirely of CET1, on top of the minimum risk-weighted asset ratios. Banking institutions that fail to maintain a full capital conservation buffer face constraints on dividends, equity repurchases and discretionary executive compensation based on the amount of the shortfall and the institution’s “eligible retained income” (that is, trailing net income for four quarters, net of distributions and tax effects not reflected in net income). The 2.5% capital conservation buffer effectively results in minimum ratios of (i) CET1 to risk-weighted assets of at least 7%, (ii) Tier 1 capital to risk-weighted assets of at least 8.5%, and (iii) total capital to risk-weighted assets of at least 10.5%. We believe that we were in compliance with the requirements of the Basel III capital rules applicable to us as of December 31, 2023. For a discussion of the regulatory capital requirements, see “Note 26 – Regulatory Matters” to the consolidated financial statements at Part II, Item 8 of this report. Prompt Corrective Action Prompt Corrective Action regulations of the federal bank regulatory agencies establish five capital categories in descending order based on an institution’s regulatory capital ratios: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized and critically undercapitalized. Under the Prompt Corrective Action framework, insured depository institutions are required to meet the following minimum capital level requirements in order to qualify as “well capitalized:” (i) a common equity Tier 1 capital ratio of 6.5%; (ii) a Tier 1 capital ratio of 8%; (iii) a total capital ratio of 10%; and (iv) a Tier 1 leverage ratio of 5%. An institution may be downgraded to, or deemed to be in, a capital category that is lower than indicated by its capital ratios if it is determined to be in an unsafe or unsound condition or if it receives an unsatisfactory examination rating with respect to certain matters. Institutions classified in one of the three undercapitalized categories are subject to certain mandatory and discretionary supervisory actions, which include increased monitoring and review, implementation of capital restoration plans, asset growth restrictions, limitations upon expansion and new business activities, requirements to augment capital, restrictions upon deposit gathering and interest rates, replacement of senior executive officers and directors, and requiring divestiture or sale of the institution. The Bank’s capital levels have exceeded the minimums necessary to be considered well capitalized under the current regulatory framework for prompt corrective action since adoption. Deposit Insurance Deposit accounts in the Bank are insured by the FDIC, generally up to a maximum of $250,000 per separately insured depositor. The Bank pays deposit insurance assessments as determined by the FDIC. The assessment rate for an institution with less than $10.0 billion in assets, such as the Bank, is based on its risk category, with certain adjustments for any unsecured debt or brokered deposits held by the bank. The assessment base against which the assessment rate is applied to determine the total assessment due for a given period is the depository institution’s average total consolidated assets during the assessment period less average tangible equity during that assessment period. Institutions assigned to higher risk categories (that is, institutions that pose a higher risk of loss to the FDIC’s deposit insurance fund (the “DIF”)) pay assessments at higher rates than institutions that pose a lower risk. An institution’s risk classification is assigned based on a combination of its financial ratios and supervisory ratings, reflecting, among other things, its capital levels and the level of supervisory concern that the institution poses to the regulators. In addition, the FDIC can impose special assessments in certain instances. 7 TriCo Bancshares 2023 10-K The FDIC, as required under the FDIA, established a plan on September 15, 2020, to restore the DIF reserve ratio to meet or exceed the statutory minimum of 1.35% within eight years. This plan did not include an increase in the deposit insurance assessment rate. Based on the FDIC’s recent projections, however, the FDIC determined that the DIF reserve ratio is at risk of not reaching the statutory minimum by the statutory deadline of September 30, 2028 without increasing the deposit insurance assessment rates. In October 2022, the FDIC adopted a final rule to increase initial base deposit insurance assessment rate schedules uniformly by 2 basis points, beginning on January 1, 2023. The FDIC also concurrently maintained the Designated Reserve Ratio for the DIF at 2%. In addition, on November 16, 2023, the FDIC issued a final rule to implement a special assessment to recover losses to the DIF incurred as a result of recent bank failures and the FDIC's use of the systemic risk exception to cover certain deposits that were otherwise uninsured. The special assessment was based on estimated uninsured deposits as of December 31, 2022 (excluding the first $5.0 billion) and will be assessed at a quarterly rate of 3.36 basis points over eight quarterly assessment periods, beginning in the first quarter of 2024. The Bank’s uninsured deposits were below the threshold and therefore is not required to pay the special assessment. Under the final rule, the estimated loss pursuant to the systemic risk determination will be periodically adjusted, and the FDIC has retained the ability to cease collection early, extend the special assessment collection period and impose a final shortfall special assessment on a one-time basis. The extent to which any such additional future assessments will impact our future deposit insurance expense is currently uncertain. The Bank is generally unable to control the amount of premiums that it is required to pay for FDIC insurance or the amount of credit, if any, that it may be allowed to offset such assessments. If there are additional bank or financial institution failures or if the FDIC otherwise determines, the Bank may be required to pay even higher FDIC premiums than the recently increased levels. Increases in FDIC insurance premiums may have a material and adverse effect on the Company’s earnings and could have a material adverse effect on the value of, or market for, the Company’s common stock. The FDIC may terminate a depository institution’s deposit insurance upon a finding that the institution’s financial condition is unsafe or unsound or that the institution has engaged in unsafe or unsound practices that pose a risk to the DIF or that may prejudice the interest of the bank’s depositors. The termination of deposit insurance for the Bank would also result in the revocation of the Bank’s charter by the DPFI. Depositor Preference The FDIA provides that, in the event of the "liquidation or other resolution" of an insured depository institution, the claims of depositors of the institution, including the claims of the FDIC as subrogee of insured depositors. and certain claims for administrative expenses of the FDIC as a receiver, will have priority over other general unsecured claims against the institution. If an insured depository institution fails, insured and uninsured depositors, along with the FDIC, will have priority in payment ahead of unsecured, non-deposit creditors, including depositors whose deposits are payable only outside of the United States and the parent bank holding company, with respect to any extensions of credit they have made to such insured depository institution. Commercial Real Estate Concentrations Under guidance issued by the federal banking regulators, a financial institution is considered to have a significant commercial real estate (“CRE”) concentration risk, and will be subject to enhanced supervisory expectations to manage that risk, if (i) total reported loans for construction, land development and other land (“C&D”) represent 100% or more of the institution’s total capital or (ii) total CRE loans represent 300% or more of the institution’s total capital and the outstanding balance of the institution’s CRE loan portfolio has increased by 50% or more during the prior 36 months. As of December 31, 2023, our C&D concentration as a percentage of capital totaled 29.9% and our CRE concentration, net of owner- occupied loans, as a percentage of capital totaled 328.6%. Bank Secrecy Act / Anti-Money Laundering The Bank Secrecy Act of 1970 and the USA Patriot Act of 2001 require financial institutions to develop policies, procedures, and practices to prevent and deter money laundering ("BSA/AML"), and mandate that every bank have a written, board-approved program that is reasonably designed to assure and monitor compliance with the BSA/AML laws. The program must, at a minimum: (1) provide for a system of internal controls to assure ongoing compliance; (2) provide for independent testing for compliance; (3) designate an individual responsible for coordinating and monitoring day-to-day compliance; and (4) provide training for appropriate personnel. In addition, banks are required to adopt a customer identification program, performing ongoing customer due diligence to understand the nature and purpose of customer relationships for the purpose of developing customer risk profiles and file reports regarding known or suspected violations of federal law or suspicious transactions. On December 3, 2019, three federal banking agencies and the Financial Crimes Enforcement Network (“FinCEN”) issued a joint statement clarifying the compliance procedures and reporting requirements that banks must file for customers engaged in the growth or cultivation of hemp, including a clear statement that banks need not file a SAR on customers engaged in the growth or cultivation of hemp in accordance with applicable laws and regulations. This statement does not apply to cannabis-related business; thus, the statement only pertains to customers who are lawfully growing or cultivating hemp and are not otherwise engaged in unlawful or suspicious activity. 8 TriCo Bancshares 2023 10-K Failure to comply with these requirements could have serious financial, legal and reputational consequences, including causing applicable bank regulatory authorities not to approve merger or acquisition transactions when regulatory approval is required or to prohibit such transactions even if approval is not required. Office of Foreign Assets Control Regulation The U.S. Treasury Department’s Office of Foreign Assets Control, or OFAC, administers and enforces economic and trade sanctions against targeted foreign countries and regimes, under authority of various laws, including designated foreign countries, nationals and others. OFAC publishes lists of specially designated targets and countries. We are responsible for, among other things, blocking accounts of, and transactions with, such targets and countries, prohibiting unlicensed trade and financial transactions with them and reporting blocked transactions after their occurrence. Transactions with Affiliates Banks are also subject to certain restrictions imposed by the Federal Reserve Act on extensions of credit to executive officers, directors, principal shareholders (including the Company) or any related interest of such persons. Regulation O requires that such extensions of credit must be made on substantially the same terms, including interest rates and collateral as, and follow credit underwriting procedures that are not less stringent than, those prevailing at the time for comparable transactions with persons not affiliated with the bank, and must not involve more than the normal risk of repayment or present other unfavorable features. Banks are also subject to certain lending limits and restrictions on overdrafts to such persons. Regulation W requires that certain transactions between the Bank and its affiliates, including its holding company, be on terms substantially the same, or at least as favorable to the Bank, as those prevailing at the time for comparable transactions with or involving non-affiliated companies or, in the absence of comparable transactions, on terms and under circumstances, including credit standards, that in good faith would be offered to or would apply to non-affiliated companies. Source of Strength Doctrine Federal Reserve Board policy and federal law require bank holding companies to act as a source of financial and managerial strength to their subsidiary banks. Under this requirement, the Company is expected to commit resources to support the Bank, including at times when the Company may not be in a financial position to provide such resources. Any capital loans by a bank holding company to any of its subsidiary banks are subordinate in right of payment to depositors and to certain other indebtedness of such subsidiary banks. In the event of a bank holding company's bankruptcy, any commitment by the bank holding company to a federal bank regulatory agency to maintain the capital of a subsidiary bank will be assumed by the bankruptcy trustee and entitled to priority of payment. Interchange Fees Under the Durbin Amendment, adopted as part of the Dodd-Frank Act, the FRB adopted rules establishing standards for assessing whether the interchange fees that may be charged with respect to certain electronic debit transactions are “reasonable and proportional” to the costs incurred by issuers for processing such transactions. Interchange fees, or “swipe” fees, are charges that merchants pay to us and other card-issuing banks for processing electronic payment transactions. FRB rules applicable to financial institutions that have assets of $10 billion or more provide that the maximum permissible interchange fee for an electronic debit transaction is the sum of 21 cents per transaction and 5 basis points multiplied by the value of the transaction. An upward adjustment of no more than 1 cent to an issuer's debit card interchange fee is allowed if the card issuer develops and implements policies and procedures reasonably designed to achieve certain fraud-prevention standards. In October 2023, the Federal Reserve issued a proposed rule under which the maximum permissible interchange fee for an electronic debit transaction would be the sum of 14.4 cents per transaction and 4 basis points multiplied by the value of the transaction. Furthermore, the fraud-prevention adjustment would increase from a maximum of 1 cent to 1.3 cents. The proposal would adopt an approach for future adjustments to the interchange fee cap, which would occur every other year based on issuer cost data gathered by the FRB from large debit card issuers. The Bank is currently not subject to these restrictions or those proposed, however if our assets exceed $10 billion or more at December 31, 2024, these rules would be applicable to the Bank in July 2025. Effective July 1, 2023, debit card issuers are required to enable all debit card transactions, including card-not-present transactions such as online payments, to be processed on at least two unaffiliated payment card networks. Incentive Compensation Policies and Restrictions In July 2010, the federal banking agencies issued guidance on sound incentive compensation policies that applies to all banking organizations supervised by the agencies (thereby including both the Company and the Bank). Pursuant to the guidance, to be consistent with safety and soundness principles, a banking organization’s incentive compensation arrangements should: (1) provide employees with incentives that appropriately balance risk and reward; (2) be compatible with effective controls and risk management; and (3) be supported by strong corporate governance including active and effective oversight by the banking organization’s board of directors. Monitoring methods and processes used by a banking organization should be commensurate with the size and complexity of the organization and its use of incentive compensation. The Dodd-Frank Act requires the federal banking agencies and the SEC to establish joint regulations or guidelines for specified regulated entities having at least $1 billion in total assets, such as us, to prohibit incentive-based payment arrangements that encourage inappropriate risk taking by providing an executive officer, employee, director or principal shareholder with excessive compensation, fees, or benefits or 9 TriCo Bancshares 2023 10-K that could lead to material financial loss to the entity. In addition, these regulators must establish regulations or guidelines requiring enhanced disclosure to regulators of incentive-based compensation arrangements. The agencies have not yet finalized these rules. Pursuant to the Dodd-Frank Act, in 2023, effective October 2, 2023, the Nasdaq Stock Market adopted a rule requiring listed companies to adopt policies to recover or "clawback" of excess incentive-based compensation earned by a current or former executive officer during the three fiscal years preceding the date the listed company is required to prepare an accounting restatement, including to correct an error that would result in a material misstatement if the error were corrected in the current period or left uncorrected in the current period. We adopted a compensation clawback policy pursuant to the listing standards that is included as Exhibit 97.1 to this report. The scope and content of the U.S. banking regulators’ policies on executive compensation may continue to evolve in the near future. It cannot be determined at this time whether compliance with such policies will adversely affect the Company’s ability to hire, retain and motivate its key employees. Climate-Related and Other ESG Developments In recent years, federal, state and international lawmakers and regulators have increased their focus on financial institutions' and other companies' risk oversight, disclosures and practices in connection with climate change and other environmental, social and governance ("ESG") matters. For example, in March 2022, the SEC issued a proposed rule on the enhancement and standardization of climate-related disclosures for investors. The proposed rule would require public issuers, including us, to significantly expand the scope of climate-related disclosures in their SEC filings. The SEC has also announced plans to propose rules to require enhanced disclosure regarding human capital management and board diversity for public issuers. In California, the Climate Corporate Data and Accountability Act (“CCDAA”) requires both public and private U.S. businesses with revenues greater than $1 billion doing business in California to report their greenhouse gas emissions including scopes 1, 2, and 3, beginning in 2026 (for 2025 data) and also requires reporting companies to get third-party assurance of their reports. The Climate-Related Financial Risk Act mandates U.S. businesses with annual revenues over $500 million doing business in California to bi-annually disclose climate-related financial risks and their mitigation strategies beginning January 1, 2026. Disclosure requirements imposed by different regulators may not always be uniform, which may result in increased complexity, and cost, for compliance. Additionally, many of our suppliers and business partners may be subject to similar requirements, which may augment or create additional risks, including risks that may not be known to us. Although these new disclosure rules do not apply to a banking organization of our size, as the Company continues to grow and expand the scope of our operations, our regulators generally will expect us to enhance our internal control programs and processes, including with respect to risk management and stress testing under a variety of adverse scenarios and related capital planning. In the event the federal banking agencies were to expand the scope of coverage of the new climate risk guidelines to institutions of our size or promulgate new regulations or supervisory guidance applicable to the Company, we would expect to experience increased compliance costs and other compliance-related risks. Impact of Monetary Policies Banking is a business that depends on interest rate differentials. In general, the difference between the interest paid by a bank on its deposits and other borrowings, and the interest rate earned by banks on loans, securities and other interest-earning assets, comprises the major source of banks’ earnings. Thus, the earnings and growth of banks are subject to the influence of economic conditions generally, both domestic and foreign, and also to the monetary and fiscal policies of the United States and its agencies, particularly the FRB. The FRB implements national monetary policy, such as seeking to curb inflation and combat recession, by its open-market dealings in United States government securities, by adjusting the required level of reserves for financial institutions subject to reserve requirements and through adjustments to the discount rate applicable to borrowings by banks which are members of the FRB. The actions of the FRB in these areas influence the growth of bank loans, investments and deposits, and also affect interest rates. The nature and timing of any future changes in such policies and their impact on the Company cannot be predicted. In addition, adverse economic conditions could make a higher provision for loan losses a prudent course and could cause higher loan loss charge-offs, thus adversely affecting the Company’s net earnings. ITEM 1A. RISK FACTORS An investment in our securities is subject to certain risks. In addition to the other information in this report, investors should carefully consider the following discussion of significant risk and uncertainties before making investment decisions about our securities. The events and consequences discussed in these risk factors could, in circumstances we may or may not be able to accurately predict, recognize, or control, have a material adverse effect on our business, growth, reputation, prospects, financial condition, operating results (including components of our financial results) liquidity, and stock price. Any of these risk factors could cause our actual results to differ materially from our historical results or the results contemplated by the forward-looking statements contained in this report. These risk factors do not identify all risks that we face; our operations could also be affected by factors, events, or uncertainties that are not presently known to us or that we currently do not consider to present significant risks to our operations. Risks Related to the Nature and Geographic Area of Our Business 10 TriCo Bancshares 2023 10-K The majority of our assets are loans, which are subject to credits risks. As a lender, we face a significant risk that we will sustain losses because borrowers, guarantors or related parties may fail to perform in accordance with the terms of the loans we make or acquire. Our earnings are significantly affected by our ability to properly originate, underwrite and service loans. Certain of our credit exposures are concentrated in industries that may be more susceptible to the long-term risks of climate change, natural disasters or global pandemics. To the extent that these risks may have a negative impact on the financial condition of borrowers, it could also have a material adverse effect on our business, financial condition and results of operations. We have underwriting and credit monitoring procedures and credit policies, including the establishment and review of the allowance for credit losses, that we believe appropriately address this risk by assessing the likelihood of nonperformance, tracking loan performance and diversifying our respective loan portfolios. Such policies and procedures, however, may not prevent unexpected losses that could adversely affect our results of operations. We could sustain losses if we incorrectly assess the creditworthiness of our borrowers or fail to detect or respond to deterioration in asset quality in a timely manner or as a result of deteriorating economic conditions, for example. Our allowance for credit losses may not be adequate to cover actual losses. Like other financial institutions, we maintain an allowance for credit losses to provide for loan defaults and non-performance. Our allowance for credit losses may not be adequate to cover actual loan losses, and future provisions for loan losses would reduce our earnings and could materially and adversely affect our business, financial condition and results of operations. Our allowance for credit losses is based on prior experience, as well as an evaluation of the known risks in the current portfolio, composition and growth of the loan portfolio and actual and forecast economic factors. Determining an appropriate level of allowance is an inherently difficult process and is based on numerous assumptions. The actual amount of future losses is susceptible to changes in economic, operating and other conditions, including changes in interest rates, unemployment and economic conditions that may be beyond our control and these losses may exceed current estimates. Effective January 1, 2020, we implemented a new accounting standard, “Measurement of Credit Losses on Financial Instruments,” commonly referred to as the “Current Expected Credit Losses” standard, or “CECL.” CECL changed the allowance for credit losses methodology from an incurred loss concept to an expected loss concept, which is more dependent on future economic forecasts, assumptions and models than previous methodology, which could result in increases and add volatility to our allowance for credit losses and future provisions for loan losses. These forecasts, assumptions and models are inherently uncertain and are based upon our management’s reasonable judgment in light of information currently available. In addition to periodic reviews completed by management and independent third parties retained by the Bank, Federal and state bank regulatory agencies, as an integral part of their examination process, review our loans and allowance for credit losses. While we believe that our allowance for credit losses is adequate to cover estimated future losses, we cannot assure you that we will not increase the allowance for credit losses further or that the allowance will be adequate to absorb credit losses we actually incur. Credit losses in excess of our allowance or addition provisions to our allowance would reduce our net income and capital, potentially materially. Our business may be adversely affected by business conditions in California. We conduct most of our business in California. As a result of this geographic concentration, our financial results may be impacted by economic conditions in California. Deterioration in the economic conditions in California could result in the following consequences, any of which could have a material adverse effect on our business, financial condition, results of operations and cash flows: • • • • problem assets and foreclosures may increase, demand for our products and services may decline, low cost or non-interest bearing deposits may continue to decrease, and collateral for loans made by us, especially real estate, may decline in value, in turn reducing customers’ borrowing power, and reducing the value of assets and collateral associated with our existing loans. In view of the concentration of our operations and the collateral securing our loan portfolio in California, we may be particularly susceptible to the adverse effects of any of these consequences, any of which could have a material adverse effect on our business, financial condition, results of operations and cash flows. Severe weather, natural disasters and other external events could adversely affect our business. Our operations and our customer base are primarily located in California where natural and other disasters may occur. California is vulnerable to natural disasters and other risks, such as earthquakes, fires, droughts and floods, the nature and severity of which may be impacted by climate change. These types of natural catastrophic events have at times disrupted the local economies, our business and customers in these regions. Such events could also affect the stability of our deposit base; impair the ability of borrowers to obtain adequate insurance or repay outstanding loans, impair the value of collateral securing loans and cause significant property damage, result in losses of revenue and/or cause us to incur additional expenses. In addition, catastrophic events occurring in other regions of the world may have an impact on our customers and in turn, on us. Our business continuity and disaster recovery plans may not be successful upon the occurrence of one of these scenarios, and a significant catastrophic event anywhere in the world could materially adversely affect our operating results. A significant majority of the loans in our portfolio are secured by California real estate and a decline in real estate values could hurt our business. 11 TriCo Bancshares 2023 10-K A downturn in real estate values in the markets which we conduct our business in California could hurt our business because most of our loans are secured by real estate. Real estate values and real estate markets are generally affected by changes in national, regional or local economic conditions, fluctuations in interest rates and the availability of loans to potential purchasers, changes in tax laws and other governmental statutes, regulations and policies. Real estate values could also be affected by, among other things, earthquakes, drought and national disasters. As real estate prices decline, the value of real estate collateral securing our loans is reduced. As a result, our ability to recover on defaulted loans by foreclosing and selling the real estate collateral could then be diminished and we would be more likely to suffer losses on defaulted loans. As of December 31, 2023, approximately 90.5% of the book value of our loan portfolio consisted of loans collateralized by various types of real estate. Substantially all of our real estate collateral is located in California; therefore, if there is a significant adverse decline in real estate values in California, the collateral for our loans will provide less security. Any such decline could have a material adverse effect on our business, financial condition and results of operations. We have significant exposure to risks associated with commercial real estate lending. A substantial portion of our loan portfolio consists of commercial real estate loans. As of December 31, 2023, we had approximately $4.4 billion of commercial real estate loans outstanding, which represented approximately 64.7% of our total loan portfolio. Consequently, commercial real estate-related credit risks are a significant concern for us. Commercial real estate loans are generally viewed as having more risk of default than some other types of loans because repayment of the loans often depends on the successful operation of the property and the income stream of the borrowers. In addition, these loans often involve larger loan balances to single borrowers or groups of related borrowers compared with other types of loans. In recent years, commercial real estate markets have been particularly impacted by the economic disruption resulting from the COVID-19 pandemic, which has been a catalyst for the evolution of various remote work options which could impact the long-term performance of some types of office properties within our commercial real estate portfolio. Accordingly, the federal banking regulatory agencies have expressed concerns about weaknesses in the current commercial real estate market. The adverse consequences from real estate-related credit risks tend to be cyclical and are often driven by national economic developments that are not controllable or entirely foreseeable by us or our borrowers. We are exposed to the risk of environmental liabilities with respect to properties to which we take title. In the course of our business, we may foreclose and take title to real estate and could be subject to environmental liabilities with respect to these properties. We may be held liable to a governmental entity or to third parties for property damage, personal injury, investigation and clean-up costs incurred by these parties in connection with environmental contamination, or may be required to investigate or clean-up hazardous or toxic substances, or chemical releases at a property. The costs associated with investigation or remediation activities could be substantial. In addition, if we are the owner or former owner of a contaminated site, we may be subject to common law or contractual claims by third parties based on damages and costs resulting from environmental contamination emanating from the property. When applicable, we establish contingent liability reserves for this purpose based on future reasonable and estimable costs developed by qualified soil and chemical engineering consultants. If we become subject to significant environmental liabilities or if our contingency reserve estimates are incorrect, our business, financial condition and results of operations could be materially adversely affected. We face strong competition from financial services companies and other companies that offer similar services, which could materially and adversely affect our business. Competition in the banking and financial services industry is intense. Our profitability depends upon our continued ability to successfully compete. We primarily compete in California for loans, deposits and customers with commercial banks, savings and loan associations, credit unions, finance companies, mutual funds, insurance companies, brokerage firms and Internet-based marketplace lending platforms. Our competitors include major financial companies whose greater resources may afford them a marketplace advantage by enabling them to maintain numerous locations and mount extensive promotional and advertising campaigns. Additionally, banks and other financial institutions with larger capitalization and financial intermediaries that are not subject to bank regulatory restrictions may have larger lending limits which would allow them to serve the credit needs of larger customers. Areas of competition include interest rates for loans and deposits, efforts to obtain loan and deposit customers and a range in quality of products and services provided, including new technology- driven products and services. Technological innovation continues to contribute to greater competition in domestic and international financial services markets as technological advances enable more companies, such as Internet-based marketplace lenders, financial technology (or “fintech”) companies that rely on technology to provide financial services, often without many of the regulatory and capital restrictions that we face. We also face competition from out-of-state financial intermediaries that have opened loan production offices or that solicit deposits in our market areas. If we are unable to attract and retain banking customers, we may be unable to continue our loan growth and level of deposits and our business, financial condition and results of operations be adversely affected. Additionally, consumers can maintain funds that would have historically been held as bank deposits in brokerage accounts or mutual funds. Consumers can also complete transactions such as paying bills and/or transferring funds directly without the assistance of banks. In addition, the emergence, adoption and evolution of new technologies that do not require intermediation, including distributed ledgers such as digital assets and blockchain, as well as advances in robotic process automation, could significantly affect the competition for financial services. The process of eliminating banks as intermediaries, known as “disintermediation,” could result in the loss of fee income, as well as the loss of customer deposits and the related income generated from those deposits. Our ability to compete successfully depends on a number of factors, including, among other things, (i) the ability to develop, maintain and build long-term customer relationships based on top quality service, high ethical standards and safe, sound assets; (ii) the ability to expand within our marketplace and with our market position; (iii) the scope, relevance and pricing of products and services offered to meet customer needs and demands; (iv) the rate at which we introduce new products and services relative to our competitors; (v) customer satisfaction with our level of service; and (vi) industry and general economic trends. Failure to perform in any of these areas could significantly weaken our 12 TriCo Bancshares 2023 10-K competitive position, which could adversely affect our growth and profitability, which, in turn, could have a material adverse effect on our business, financial condition and results of operations. We may be adversely affected by the soundness of other financial institutions. Financial services institutions are interrelated as a result of clearing, counterparty, or other relationships. We have exposure to many different industries and counterparties, and routinely execute transactions with counterparties in the financial services industry, including commercial banks, brokers and dealers, and other institutional clients. Many of these transactions expose us to credit risk in the event of a default by a counterparty or client. In addition, our credit risk may be exacerbated when the collateral that we hold cannot be realized upon or is liquidated at prices not sufficient to recover the full amount of the credit or derivative exposure due to us. Any such losses could have a material adverse effect on our financial condition and results of operations. We may need to raise additional capital, but it may not be available on acceptable terms or at all. We are required by federal and state regulators to maintain adequate levels of capital. We may need to raise additional capital in the future to meet regulatory or other internal requirements. Our ability to raise additional capital, if needed, will depend on, among other things, conditions in the capital markets at that time, which are outside of our control, and our financial performance. We cannot provide any assurance that access to such capital will be available to us on acceptable terms or at all. An event that may limit our access to the capital markets, such as a decline in the confidence of investors or counter-parties participating in the capital markets, may materially and adversely affect our capital costs and our ability to raise capital and, in turn, our liquidity. Further, if we need to raise capital in the future, we may have to do so when many other financial institutions are also seeking to raise capital and we would then have to compete with those institutions for investors. The inability to raise additional capital on acceptable terms when needed could have a materially adverse effect on our business, financial condition, or results of operations. Adverse changes in economic or market conditions may hurt our businesses. Our success depends, to a certain extent, upon local, national and global economic and political conditions, as well as governmental monetary policies. Conditions such as an economic recession, pandemics, rising unemployment, inflation, changes in interest rates, declines in asset values and other factors beyond our control may adversely affect our asset quality, deposit levels and our net income. Adverse changes in the economy may also have a negative effect on the demand for new loans and the ability of our existing borrowers to make timely repayments of their loans, which could adversely impact our growth and earnings. Economic and market conditions may also be affected by political developments in the U.S. and other countries and global conflicts, such as the conflicts in Ukraine and the Middle East. Uncertainty about the federal fiscal policymaking process, the fiscal outlook of the federal government, and future tax rates is a concern for businesses, consumers and investors in the United States The COVID-19 pandemic caused, and its lingering impact may continue to cause, disruptions in the U.S. economy at large, and for small businesses in particular, and has resulted in and may continue to result in disruptions to our customers’ businesses, and a decrease in consumer confidence and business generally. If the United States economy weakens or does not improve, our growth and profitability from our lending, deposit and investment operations could be constrained. Any of these potential outcomes could cause us to suffer losses in our investment securities portfolio, reduce our liquidity and capital levels, hamper our ability to deliver products and services to our clients and customers, and weaken our results of operations and financial condition. The lingering effects of COVID-19 or a similar health crisis or pandemic, could adversely affect or operations or financial performance. While U.S. and global economies have begun to recover from the COVID-19 pandemic and many health and safety restrictions have been lifted, certain adverse consequences of the pandemic, including labor shortages, disruptions of global supply chains, and inflationary pressures, continue to impact the economy and could adversely affect our business. Our business depends on the willingness and ability of our customers and employees to conduct banking and other financial transactions. Continued disruptions to our customers caused by the COVID-19 pandemic could result in increased risk of delinquencies, defaults, foreclosures and losses on our loans, as well as reductions in loan demand, the liquidity of loan guarantors, loan collateral values (particularly in real estate), loan originations, interest and noninterest income and deposit availability. The COVID-19 pandemic has also resulted in heightened operational risks. Some of our colleagues continue to work remotely at least part- time basis, which may create additional cybersecurity risks. The increase in online and remote banking activities may also increase the risk of fraud in certain instances. Adverse developments affecting the financial services industry, such as the failure of three banks in the first half of 2023 or concerns involving liquidity, may have a material effect on the Company’s liquidity, earnings and financial condition. During the first half of 2023, the financial services industry was negatively affected by three bank failures. These events caused general uncertainty and concern regarding the adequacy of liquidity within the banking sector as a whole and have decreased investor and customer confidence in banks, notably with regard to mid-sized and larger regional banks. Although we were not directly affected by these bank failures, the resulting speed and ease in which news or rumors, including social media commentary, led depositors to withdraw or attempt to withdraw their funds from these and other financial institutions caused the stock prices of many financial institutions to become volatile, in particular regional, as well as community banks like us. Notably, the Company’s share price decreased by 17% during the month of March 13 TriCo Bancshares 2023 10-K 2023, consistent with other community banking organizations. According to data published by the FRB, deposits at domestic commercial banks decreased by approximately $280 billion between the end of February 2023 and the week ended March 29, 2023. The Bank’s deposits decreased by $162 million during this period, which was a decrease of 2%. As a result of these events, customers may choose to maintain deposits with larger financial institutions or in other higher yielding alternatives, which could materially adversely impact the Company’s liquidity, loan funding capacity, net interest margin, capital and results of operations. The bank failures during 2023 may lead to governmental initiatives intended to prevent future bank failures and stem significant deposit outflows from the banking sector, including (i) legislation aimed at preventing similar future bank runs and failures and stabilizing confidence in the banking sector over the long term, (ii) agency rulemaking to modify and enhance relevant regulatory requirements, specifically with respect to liquidity risk management, deposit concentrations, capital adequacy, stress testing and contingency planning, and safe and sound banking practices, and (iii) enhancement of the agencies’ supervision and examination policies and priorities. The federal banking agencies may also re-evaluate applicable liquidity risk management standards, such as by reconsidering the mix of assets that are deemed to be "high-quality liquid assets" and/or how HQLA holdings and cash inflows and outflows are tabulated and weighted for liquidity management purposes. Although we cannot predict the terms and scope of any such initiatives, any of the potential changes referenced above could, among other things, subject us to additional costs, limit the types of financial services and products we may offer, and limit our future growth, any of which could materially and adversely affect our business, results of operations or financial condition. Risks Related to Interest Rates Changes in interest rates may make it difficult for us to improve or maintain our current interest income spread and could result in reduced earnings and negatively impact our financial performance. Like other financial institutions, we are subject to risks resulting from changes in interest rates. Our primary source of income is net interest income, which is the difference between interest earned on loans and leases and investments, and interest paid on deposits and borrowings. Because of the differences in the maturities and repricing characteristics of our interest-earning assets and interest-bearing liabilities, changes in interest rates may not produce matching changes in interest income we earn on interest-earning assets and interest we pay on interest-bearing liabilities. Accordingly, fluctuations in interest rates could adversely affect our interest rate spread and, in turn, our profitability. In addition, loan and lease volume and quality and deposit volume and mix can be affected by market interest rates as can the businesses of our clients. Changes in levels of market interest rates could have a material adverse effect on our net interest spread, asset quality, origination volume, the value of our loans and investment securities, deposit levels and overall profitability. Interest rates may be affected by many factors that are beyond the control of our management, including general economic conditions and the policies of various governmental and regulatory authorities. The actions of the Federal Reserve influence the rates of interest that we charge on loans and that we pay on borrowings and interest-bearing deposits. Changes in monetary policy, including changes in interest rates, may negatively affect our ability to originate loans and leases, the value of our assets and our ability to realize gains from the sale of our assets, all of which ultimately could affect our earnings. The Federal Reserve raised benchmark interest rates in 2022 and 2023 and may continue to raise or keep interest rates high in response to economic conditions, particularly inflationary pressures. We cannot predict the nature or timing of future changes in monetary, tax and other policies or the effects that they may have on our activities and financial results. Our business is subject to interest rate risk and variations in interest rates may negatively affect our financial performance. Although we were successful in generating new loans during 2023, increasing interest rates may adversely affect the demand for new loans and our loan growth. To supplement our organic loan growth, we from time-to-time may purchase loans from third parties that may have lower yields than those loans that we originate on our own. Additionally, interest rate increases often result in larger payment requirements for our borrowers with variable rate loans, which increases the potential for default and could result in a decrease in the demand for loans. At the same time, the marketability of the property securing a loan may be adversely affected by any reduced demand resulting from higher interest rates. An increase in interest rates that adversely affects the ability of borrowers to pay the principal or interest on loans may lead to an increase in nonperforming assets and a reversal of income previously recognized, which could have an adverse effect on our results of operations. Further, when we place a loan on nonaccrual status, we reverse any accrued but unpaid interest receivable, which decreases interest income. At the same time, we continue to incur costs to fund the loan, which is reflected as interest expense, without any interest income to offset the associated funding expense. Thus, an increase in the amount of nonperforming assets would have an adverse impact on net interest income. Furthermore, if short-term market rates rise, in order to retain existing deposit customers and attract new deposit customers we may need to increase rates we pay on deposit accounts. Accordingly, changes in levels of market interest rates could materially and adversely affect our net interest spread, asset quality, loan origination volume, business, financial condition and results of operations. Higher or prolonged inflation could have a negative impact on our financial results and operations. 14 TriCo Bancshares 2023 10-K Inflation may negatively affect us by increasing our labor costs, through higher wages and higher interest rates, which may negatively affect the market value of securities on our balance sheet, higher interest expenses on our deposits, especially CDs, and a higher cost of our borrowings. Additionally, higher inflation levels could lead to higher oil and gas prices, which may negatively impact the net operating income on the properties which we lend on and could impair a borrower's ability to repay their loans. Elevated inflation and expectations for elevated future inflation can adversely impact economic growth, consumer and business confidence, and our financial condition and results. In addition, elevated inflation may cause unexpected changes in monetary policies and actions which may adversely affect confidence, the economy, and our financial condition and results. Supply chain constraints and a tightening labor markets could potentially exacerbate inflation and sustain it at elevated levels, even as growth slows. The risk of sustained high inflation would likely be accompanied by monetary policy tightening with potential negative effects on various elevated asset classes. Reduction in the value, or impairment of our investment securities, can impact our earnings and common shareholders’ equity. We maintained a balance of $2.3 billion, or approximately 23.2% of our assets, in investment securities at December 31, 2023. Changes in market interest rates can affect the fair value of these investment securities, with increasing interest rates generally resulting in a reduction of value. Although the reduction in value from temporary increases in market rates does not affect our income until the security is sold, it does result in an unrealized loss recorded in other comprehensive income that can reduce our common stockholders’ equity. Further, we must periodically test our investment securities for other-than-temporary impairment in value. In assessing whether the impairment of investment securities is other-than-temporary, we consider the length of time and extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, and the intent and ability to retain our investment in the security for a period of time sufficient to allow for any anticipated recovery in fair value in the near term. If we are required to sell securities to meet liquidity needs, we could realize significant losses. As a result of increases in interest rates over the last year, the market values of previously issued government and other debt securities have declined in value, resulting in unrealized losses in our securities portfolio. While we anticipate that the scheduled cash flows generated from our investment portfolio will be adequate to support the liquidity needs of the Company, if we were required to sell these securities to expedite the generation of cash flows to meet liquidity needs, we may be required to realize significant losses, which could impair our capital and financial condition and adversely affect our results of operations. Further, while we have taken actions to maximize our sources of liquidity, there is no guarantee that such sources will be available or sufficient in the event of sudden liquidity needs. Risks Related to Regulatory and Legal Matters We operate in a highly regulated environment and we may be adversely affected by new laws and regulations or changes in existing laws and regulations. Any additional regulations are expected to increase our cost of operations. Furthermore, regulations may prevent or impair our ability to pay dividends, engage in acquisitions or operate in other ways. We are subject to extensive regulation, supervision and examination by the DFPI, FDIC, and the FRB as well as regulations and policies of the CFPB. See "Item 1. Business - Regulation and Supervision" of this report for information on the regulation and supervision which governs our activities. Regulatory authorities have extensive discretion in their supervisory and enforcement activities, including the imposition of restrictions on our operations, the classification of our assets and determination of the level of our allowance for credit losses. Banking regulations or the actions of our banking regulators may limit our growth, earnings and the return to our shareholders by restricting certain of our activities, such as: • • • • • • • • the payment of dividends to our shareholders, possible mergers with or acquisitions of or by other institutions, desired investments, loans and interest rates on loans, interest rates paid on deposits, service charges on deposit account transactions, the possible expansion or reduction of branch offices, and the ability to provide new products or services. We also are subject to regulatory capital requirements. We could be subject to regulatory enforcement actions if any of our regulators determines for example, that we have violated a law or regulation, engaged in unsafe or unsound banking practice or lack adequate capital. Federal and state governments and regulators could pass legislation and adopt policies responsive to current credit conditions that would have an adverse effect on us and our financial performance. We cannot predict what changes, if any, will be made to existing federal and state legislation and regulations or the effect that such changes may have on our future business and earnings prospects. Any change in such regulation and oversight, whether in the form of regulatory policy, regulations, legislation or supervisory action, may have a material adverse impact on our operations, including the cost to conduct business. 15 TriCo Bancshares 2023 10-K Furthermore, The evolving landscape of legislative and regulatory actions, influenced by election cycles, introduces an additional layer of uncertainty for our operations. Elections can precipitate changes in government policies and regulations across various industries, potentially impacting our business. Uncertainty regarding potential changes in regulations or policies related to our industry may lead to increased costs of doing business and operational challenges. Economic conditions, including interest rates, inflation, and consumer spending, may be influenced by shifts in government leadership and policies, affecting our ability to maintain historical growth rates. Furthermore, the election process often introduces market volatility, impacting financial markets, currency exchange rates, and commodity prices. This volatility may pose risks to our financial performance, cost of capital, and access to funding. The outcomes of elections may directly affect our industry, influencing regulatory frameworks and industry dynamics. Shifts in political power may shape the competitive landscape, impacting market share and pricing strategies. Unfavorable changes in industry-specific regulations could result in increased compliance costs and operational challenges. Political events, including elections, can influence consumer and investor sentiment, affecting demand for our products and services and impacting investor confidence, which may influence our stock price and access to capital. Risks Related to Our Growth and Expansion Goodwill resulting from acquisitions may adversely affect our results of operations. Our balance sheet contains a substantial level of goodwill and other intangible assets as a result of our acquisitions, including Valley Republic Bancorp in 2022. Potential impairment of goodwill and amortization of other intangible assets could adversely affect our financial condition and results of operations. We assess our goodwill and other intangible assets and long-lived assets for impairment annually and more frequently when required by U.S. GAAP. We are required to record an impairment charge if circumstances indicate that the asset carrying values exceed their fair values. Our assessment of goodwill, other intangible assets, or long-lived assets could indicate that an impairment of the carrying value of such assets may have occurred that could result in a material, non-cash write-down of such assets, which could have a material adverse effect on our results of operations and future earnings. Potential acquisitions create risks and may disrupt our business and dilute shareholder value. We intend to continue to explore opportunities for growth through mergers and acquisitions. Acquiring other banks, businesses, or branches involves various risks commonly associated with acquisitions, including, among other things: • • • • • • • incurring substantial expenses in pursuing potential acquisitions without completing such acquisitions, exposure to potential asset quality issues of the target company, losing key clients as a result of the change of ownership, the acquired business not performing in accordance with our expectations, difficulties and expenses arising in connection with the integration of the operations or systems conversion of the acquired business with our operations, difficulty in estimating the value of the target company, potential exposure to unknown or contingent liabilities of the target company, • management needing to divert attention from other aspects of our business, • • • • • • potentially losing key employees of the acquired business, incurring unanticipated costs which could reduce our earnings per share, assuming potential liabilities of the acquired company as a result of the acquisition, potential changes in banking or tax laws or regulations that may affect the target company, potential disruption to our business, an acquisition may dilute our earnings per share, in both the short and long term, or it may reduce our tangible capital ratios. Acquisitions may be delayed, impeded, or prohibited due to regulatory issues. Acquisitions by financial institutions, including us, are subject to approval by a variety of federal and state regulatory agencies. The process for obtaining these required regulatory approvals has become substantially more difficult since the global financial crisis and more recently due to political actions. Furthermore, our ability to engage in certain merger or acquisition transactions depends on the bank regulators' views at the time as to our capital levels, quality of management, and overall condition, in addition to their assessment of a variety of other factors, including our compliance with laws and regulations. Regulatory approvals could be delayed, impeded, restrictively conditioned or denied due to existing or new regulatory issues we have, or may have, with regulatory agencies, including, without limitation, issues related to BSA/AML compliance, CRA performance, fair lending laws, fair housing laws, consumer protection laws and other laws and regulations. We may fail to pursue, evaluate or complete strategic and competitively significant acquisition opportunities as a result of our inability, or 16 TriCo Bancshares 2023 10-K perceived or anticipated inability, to obtain regulatory approvals in a timely manner, under reasonable conditions or at all. Difficulties associated with potential acquisitions that may result from these factors could have a material adverse effect on our business, financial condition and results of operations. If we cannot attract deposits, our growth may be inhibited. We plan to increase the level of our assets, including our loan portfolio. Our ability to increase our assets depends in large part on our ability to attract additional deposits at favorable rates. We intend to seek additional deposits by offering deposit products that are competitive with those offered by other financial institutions in our markets and by establishing personal relationships with our customers. We cannot assure that these efforts will be successful. Our inability to attract additional deposits at competitive rates could have a material adverse effect on our business, financial condition and results of operations. Our growth and expansion may strain our ability to manage our operations and our financial resources. Our financial performance and profitability depend on our ability to execute our corporate growth strategy. In addition to seeking deposit and loan and lease growth in our existing markets, we may pursue expansion opportunities in new markets, enter into new lines of business or market areas or offer new products or services. Continued growth, however, may present operating and other problems that could adversely affect our business, financial condition and results of operations. Furthermore, any new line of business or market areas and/or new products or services could have a significant impact on the effectiveness of our system of internal controls. Accordingly, there can be no assurance that we will be able to execute our growth strategy or maintain the level of profitability that we have recently experienced. Our growth may place a strain on our administrative, operational and financial resources and increase demands on our systems and controls. This business growth may require continued enhancements to and expansion of our operating and financial systems and controls and may strain or significantly challenge them. In addition, our existing operating and financial control systems and infrastructure may not be adequate to maintain and effectively monitor future growth. Our continued growth may also increase our need for qualified personnel. We cannot assure you that we will be successful in attracting, integrating and retaining such personnel. We will become subject to increased regulation when we have more than $10 billion in total consolidated assets. An insured depository institution with $10 billion or more in total assets is subject to supervision, examination, and enforcement with respect to consumer protection laws by the CFPB rather than its primary federal banking regulator. Under its current policies, the CFPB will assert jurisdiction in the first quarter after an insured depository institution’s call reports show total consolidated assets of $10 billion or more for four consecutive quarters. The Bank had slightly less than $10 billion in total assets at December 31, 2023, so it is possible that with only modest growth, the CFPB, instead of the FDIC, may soon have primary examination and enforcement authority over the Bank. As an independent bureau focused solely on consumer financial protection, the CFPB may interpret or enforce consumer protection laws more strictly or severely than the FDIC. Additionally, other regulatory requirements apply to depository institutions and holding companies with $10 billion or more in total consolidated assets, including a cap on interchange transaction fees for debit cards, as required by Federal Reserve Board regulations, which would reduce our interchange revenue, and restrictions on proprietary trading and investment and sponsorship in hedge funds and private equity funds known as the Volcker Rule. See also "Item 1 - Business - Regulation and Supervision - Interchange Fees" in this report. Further, deposit insurance assessment rates are calculated differently, and may be higher, for insured depository institutions with $10 billion or more in total consolidated assets. Risks Relating to Ownership of Our Common Stock Our ability to pay dividends is subject to legal and regulatory restrictions. Our ability to pay dividends to our shareholders is limited by California law and the policies and regulations of the FRB. The FRB has issued a policy statement on the payment of cash dividends by bank holding companies, which expresses the FRB’s view that a bank holding company should pay cash dividends only to the extent that its net income for the past year is sufficient to cover both the cash dividends and a rate of earnings retention that is consistent with the holding company’s capital needs, asset quality and overall financial condition. See “Item 1. Business - Regulation and Supervision – Restrictions on Dividends and Distributions.” As a holding company with no significant assets other than the Bank, our ability to continue to pay dividends depends in large part upon the Bank’s ability to pay dividends to us. The Bank’s ability to pay dividends or make other capital distributions to us is subject to the restrictions in the California Financial Code. Our ability to pay dividends to our shareholders and the ability of the Bank to pay in dividends to us are subject to the requirements that we and the Bank maintain a sufficient level of capital to be considered a “well capitalized” institution as well as a separate capital conservation buffer, as further described under “Item 1. Business - Supervision and Regulation — Regulatory Capital Requirements” in this report. From time to time, we may become a party to financing agreements or other contractual arrangements that have the effect of limiting or prohibiting us or the Bank from declaring or paying dividends. Our holding company expenses and obligations with respect to our trust preferred securities and corresponding junior subordinated deferrable interest debentures issued by us may limit or impair our ability to declare or pay dividends. 17 TriCo Bancshares 2023 10-K Provisions of our governing documents and federal law may limit the ability of another party to acquire us, which could cause our stock price to decline. Various provisions of our articles of incorporation and bylaws could delay or prevent a third party from acquiring us, even if doing so might be beneficial to our shareholders. These provisions provide for, among other things, specified factors that the Board of Directors shall or may consider when evaluating an offer to merge, an offer to acquire all assets or a tender offer is received; advance notice provisions for director nominations and shareholder proposals; and the authority to issue preferred stock by action of the board of directors acting alone, without obtaining shareholder approval. The BHC Act and the Change in Bank Control Act of 1978, as amended, together with federal regulations, require that, depending on the particular circumstances, either FRB approval must be obtained or notice must be furnished to the Federal Reserve Board and not disapproved prior to any person or entity acquiring “control” of a bank holding company such as TriCo. These provisions may prevent a merger or acquisition that would be attractive to shareholders and could limit the price investors would be willing to pay in the future for our common stock Holders of our junior subordinated debentures have rights that are senior to those of our shareholders. We have supported our growth through the prior issuance of trust preferred securities from special purpose trusts and accompanying junior subordinated debentures. At December 31, 2023, we had outstanding trust preferred securities and accompanying junior subordinated debentures with principal amount of $101.1 million. Payments of the principal and interest on the trust preferred securities are conditionally guaranteed by us. Further, the accompanying junior subordinated debentures we issued to the trusts are senior to our shares of common stock. As a result, we must make payments on the junior subordinated debentures before we can pay any dividends on our common stock and, in the event of our bankruptcy, dissolution or liquidation, the holders of the junior subordinated debentures must be satisfied before any distributions can be made on our common stock. Risks Relating to Operations, Technology Systems, Accounting and Internal Controls If we fail to maintain an effective system of internal and disclosure controls, we may not be able to accurately report our financial results or prevent fraud. As a result, current and potential shareholders could lose confidence in our financial reporting, which would harm our business and the trading price of our securities. Effective internal control over financial reporting and disclosure controls and procedures are necessary for us to provide reliable financial reports and effectively prevent fraud and to operate successfully as a public company. If we cannot provide reliable financial reports or prevent fraud, our reputation and operating results would be harmed. We continually review and analyze our internal control over financial reporting for Sarbanes-Oxley Section 404 compliance. As part of that process we may discover material weaknesses or significant deficiencies in our internal controls. Any failure to maintain effective controls or timely effect any necessary improvement of our internal and disclosure controls could harm operating results or cause us to fail to meet our reporting obligations, which could affect our ability to remain listed with Nasdaq. Ineffective internal and disclosure controls could also cause investors to lose confidence in our reported financial information, which would likely have a negative effect on the trading price of our securities. We experienced a criminal cyberattack in February 2023, which resulted in the temporary interruption of our systems, disclosure of certain confidential information, litigation and governmental inquiries, all of which could damage our reputation or create additional financial and legal exposure. As previously disclosed in the Current Report on Form 8-K we filed on February 14, 2023, the Bank experienced a cybersecurity incident in February 2023. After detecting unusual network activity, we shut down networked systems by taking them offline, which prevented access to internal systems, data and telephones for a limited period of time. We immediately launched an investigation and notified law enforcement and banking regulators. A digital forensics firm was engaged to help determine the scope of the incident and identify potentially impacted data. We received a demand for ransom from a party claiming responsibility for the incident. The Bank’s core banking systems, including those that facilitate loan and deposit related transactions, were not affected and the Bank’s resumed customer facing operations within two days. However, the Bank’s internal system/server access as well as communication capabilities, including e-mail correspondence and telephones, required approximately one week of time for the restoration process to be completed in a safe and secure environment. The Company restored its systems without paying ransom. The Bank worked with third-party forensic investigators to understand the nature and scope of the incident and to determine what and how much information was impacted. The Bank determined that its internal computer network had been infected with malware which prevented access to certain files on the network. Through its investigation, the Bank determined that an unauthorized actor illegally accessed and acquired data from certain systems, including the personal information of approximately 86,000 individuals, including certain current and former customers, individuals related to current and former customers, current and former employees and their dependents, and others. While the information impacted varied by individual, the types of information that were impacted included name, social security number, driver’s license number, state identification number, financial account information, medical information, health insurance information, date of birth, passport number, digital/electronic signature, tax identification number, access credentials, and mother’s maiden name. The Bank notified and will continue to notify impacted individuals consistent with state and federal requirements and the Bank is offering impacted individuals credit restoration services and 24 months of credit monitoring services at no cost. The Bank issued a press release regarding this event and posted notice of this event on its website. 18 TriCo Bancshares 2023 10-K As a result of the 2023 cyberattack, we have incurred and may continue to incur significant costs or experience other material financial impacts, which may not be covered by, or may exceed the coverage limits of, our cyber liability insurance, and such costs and impacts may have a material adverse effect on our business, reputation, financial condition and operating results. These risks may stem from litigation or governmental inquiries litigation to which we currently are or may become subject in connection with this incident, and the extent of remediation and other additional costs that may be incurred by us. We face numerous lawsuits related to the 2023 cyberattack, including three purported class action lawsuits that have been filed in California Superior Court for the Counties of Contra Costa and Butte, seeking unspecified monetary damages, equitable relief, costs and attorneys’ fees. The lawsuits allege breach of contract, negligence, violations of various privacy laws and a variety of other legal causes of action. We are currently unable to predict the potential outcome of any of this litigation or whether we may be subject to further private litigation. In addition, the Company has received inquiries from various government authorities related to the 2023 cyberattack, which could result in sanctions, fines or penalties. We are responding to these inquiries and cooperating fully. However, we cannot predict the timing or outcome of any of these inquiries, or whether we may be subject to further governmental inquiries. Given the uncertainties about any further impacts of the incident, including the inherent uncertainties involved in litigation, contractual obligations, government investigations and regulatory enforcement decisions, we face the risk that outcomes from these risks could have a material adverse effect on our reputation, business and/or financial condition. In addition, litigation, government interventions, and negative media reports and any resulting damage to our reputation or loss of confidence in the security of our systems could adversely affect our business. It is possible that we could incur losses associated with these proceedings and inquiries, and the Company will continue to evaluate information as it becomes known and will record an estimate for losses at the time or times when it is both probable that a loss has been incurred and the amount of the loss is reasonably estimable. Ongoing legal and other costs related to these proceedings and inquiries, as well as any potential future proceedings and inquiries, may be substantial, and losses associated with any adverse judgments, settlements, penalties or other resolutions of such proceedings and inquiries could be material to our business, reputation, financial condition and operating results. We face the risk that failures or breaches, including cyberattacks, of our operational or security systems or of those of our customers or vendors, could disrupt our business, result in the disclosure of confidential information, damage our reputation, and create significant financial and legal exposure. We, our customers, our vendors, and other third parties have been subject to, and are likely to continue to be the target of, persistent cyberattacks. Despite our efforts to ensure the integrity of our systems, we may not be able to anticipate or to implement effective preventive measures against all security breaches. Attacker's tools and techniques evolve frequently, and because attacks may originate from a wide variety of sources, including, but not limited to, state-sponsored parties, organized crime, terrorist organizations, malicious actors, employees, contractors, or other third parties. Those parties may attempt, for example, to fraudulently induce employees, customers or other users of our systems to disclose sensitive information in order to gain access to our data or that of our customers and others; may seek to exploit bugs, errors, misconfigurations or other vulnerabilities in our systems to obtain access to our systems; may seek to obtain unauthorized access to our systems or confidential information by exploiting insider access or utilizing log-in credentials taken from our customers, employees, or third-party providers by various illicit means; and may seek to disrupt and damage our business operations and systems through ransomware or distributed denial of service attacks. Although we devote significant resources to maintain and regularly upgrade our systems and processes that are designed to protect the security of our computer systems, software, networks, and other technology assets and the confidentiality, integrity, and availability of information belonging to us and our customers, there is no assurance that our security measures will be sufficient. We have implemented employee and customer awareness training regarding phishing, malware, and other cyber risks, however there can no assurances that this training will be effective or sufficient. Furthermore, these risks are expected to increase in the future as we continue to increase our electronic payments and other internet-based product offerings and expand our internal usage of web-based products and applications. Continued geographical turmoil, including the ongoing conflict between Russia and Ukraine, has heightened the risk of cyberattack and has created new risk for cybersecurity, and similar concerns. For example, the United States government has warned that sanctions imposed against Russia by the United States in response to its conflict with Ukraine could motivate Russia to engage in malicious cyber activities against the United States. If our security systems or those of our third party vendors, contractors and customers are penetrated or circumvented, it could cause serious negative consequences for us, including significant disruption of our operations, misappropriation or theft of our confidential information or that of our customers, or damage our computers or systems and those of our customers and counterparties, and could result in violations of applicable privacy and other laws, financial loss to us or to our customers, loss of confidence in our security measures, customer dissatisfaction, significant litigation exposure, and harm to our reputation, all of which could have a material adverse effect on us. If personal, confidential or proprietary information of customers or others in the Bank’s or such vendors’ or other third-parties’ possession were to be mishandled or misused, we could suffer significant regulatory consequences, reputational damage and financial loss, as discussed earlier regarding the Bank's 2023 cyberattack. Our procedures and safeguards to prevent unauthorized access to confidential information and to defend against cyberattacks seeking to disrupt our operations must be continually evaluated and enhanced to address the ever-evolving threat landscape and changing cybersecurity regulations. These preventative actions require the investment of significant resources and management time and attention. Nevertheless, we may not be able to anticipate, prevent, timely detect and/or effectively remediate all security breaches. 19 TriCo Bancshares 2023 10-K Any inability to prevent or adequately respond to the issues described above could disrupt the Company’s business, inhibit its ability to retain existing customers or attract new customers, otherwise harm its reputation and/or result in financial losses, litigation, increased costs or other adverse consequences that could be material to the Company. Our reliance on third-party vendors exposes us to risks, including additional cybersecurity risks. Third-party vendors provide key components of our business infrastructure, including certain data processing and information services. On our behalf, third parties may transmit confidential, propriety information. Some of these third parties may engage vendors of their own, which introduces the risk that these "fourth parties" could be the source of operational and/or security failures. Although we require third-party providers and these fourth-party vendors to maintain certain levels of information security, such providers may remain vulnerable to breaches, unauthorized access, misuse, computer viruses, or other malicious attacks that could ultimately compromise sensitive information. Additionally, we do not have control of the cybersecurity systems, breach prevention, and response protocols of our third- or fourth-party vendors, including through our cybersecurity programs or policies. While the Company may have contractual rights to assess the effectiveness of many of our providers’ systems and protocols, we do not have the means to know or assess the effectiveness of all of our providers’ systems and controls at all times. We cannot provide any assurances that actions taken by us, or our third- or fourth-party vendors, including through our cybersecurity programs or policies, will adequately prevent or substantially mitigate the impacts of cybersecurity breaches or misuses of confidential information, unauthorized access to our networks or systems or exploits against third-or fourth-party environments, or that we, or our third- or fourth-party vendors, will be able to effectively identify, investigate, and remediate such incidents in a timely manner or at all. While we may contractually limit our liability in connection with attacks against third-party providers, we remain exposed to the risk of loss associated with such vendors. In addition, a number of our vendors are large national entities with dominant market presence in their respective fields. Their services could prove difficult to replace in a timely manner if a failure or other service interruption were to occur. Failures of certain vendors to provide contracted services could adversely affect our ability to deliver products and services to our customers and cause us to incur significant expense. These types of third-party relationships are subject to evolving and increasingly demanding regulatory requirements and attention by our bank regulators. Regulatory guidance requires us to enhance our due diligence, ongoing monitoring and control over our third-party vendors and subcontractors and other ongoing third-party business relationships. In certain cases, we may be required to renegotiate our agreements with these vendors and/or their subcontractors to meet these enhanced requirements, which could increase our costs. If our regulators conclude that we have not exercised adequate oversight and control over our third-party vendors and subcontractors or other ongoing third-party business relationships, or that such third parties have not performed appropriately, we could be subject to enforcement actions, including the imposition of civil money penalties or other administrative or judicial penalties or fines as well as requirements for customer remediation. We are subject to certain industry standards regarding our credit/debit card-related services. Failure to meet those standards may significantly impact our ability to offer these services. We are subject to the PCI-DSS, issued by the Payment Card Industry Security Standards Council. PCI-DSS contains compliance guidelines with regard to our security surrounding the physical and electronic storage, processing and transmission of cardholder data. Compliance with PCI-DSS and implementing related procedures, technology and information security measures requires significant resources and ongoing attention. Costs and potential problems and interruptions associated with the implementation of new or upgraded systems and technology, such as those necessary to achieve compliance with PCI-DSS or with maintenance or adequate support of existing systems could also disrupt or reduce the efficiency of our operations. Any material interruptions or failures in our payment-related systems or third parties that we rely upon could have a material adverse effect on our business, results of operations and financial condition. If there are amendments to PCI-DSS, the cost of compliance could increase, and we may suffer loss of critical data and interruptions or delays in our operations as a result. If we or our service providers are unable to comply with the standards imposed by PCI-DSS, we may be subject to fines and restrictions on our ability to offer certain services, which could materially and adversely affect our business. Our business is highly reliant on technology and our ability and our third-party service providers to manage the operational risks associated with technology. Our business involves storing and processing sensitive consumer and business customer data. We depend on internal systems, third party service providers, cloud services and outsourced technology to support these data storage and processing operations. Despite our efforts to ensure the security and integrity of our systems, we may not be able to anticipate, detect or recognize threats to our systems or those of third-party service providers or to implement effective preventive measures against all cybersecurity breaches. Cyberattack techniques change regularly and can originate from a wide variety of sources, including third parties who are or may be involved in organized crime or linked to terrorist organizations or hostile foreign governments, and such third parties may seek to gain access to systems directly or using equipment or security passwords belonging to employees, customers, third-party service providers or other users of our systems. These risks may increase in the future as we continue to increase our mobile, digital and other internet-based product offerings and expands our internal usage of web-based products and applications. A cybersecurity breach or cyberattack could persist for a long time before being detected and could result in theft of sensitive data or disruption of our transaction processing systems. Our inability to use or access these information systems at critical points in time could unfavorably impact the timeliness and efficiency of our business operations. A breach of customer data security such as the breach of customer data in connection with the February 2023 20 TriCo Bancshares 2023 10-K cyberattack discussed above, may negatively impact our business reputation and cause a loss of customers. This event has resulted in increased expenses to contain the event, to notify impacted individuals and provide them with credit monitoring services, and to defend / respond to litigation. Cybersecurity risk management programs are expensive to maintain and will not protect us from all risks associated with maintaining the security of customer data and our proprietary data from external and internal intrusions, disaster recovery and failures in the controls used by our vendors. Cybersecurity and data privacy are areas of heightened legislative and regulatory focus. As cybersecurity and data privacy risks for banking organizations and the broader financial system have significantly increased in recent years, cybersecurity and data privacy issues have become the subject of increasing legislative and regulatory focus. The federal bank regulatory agencies have proposed enhanced cyber risk management standards, which would apply to a wide range of large financial institutions and their third-party service providers, including us, and would focus on cyber risk governance and management, management of internal and external dependencies, incident response, cyber resilience and situational awareness. Several states have also proposed or adopted cybersecurity legislation and regulations, which require, among other things, notification to affected individuals when there has been a security breach of their personal data. For more information regarding cybersecurity regulation, refer to "Item 1. Business - Supervision and Regulation.” We receive, maintain and store non-public personal information of our customers and counterparties, including, but not limited to, personally identifiable information and personal financial information. The sharing, use, disclosure, and protection of this information are governed by federal and state law. Both personally identifiable information and personal financial information is increasingly subject to legislation and regulation, the intent of which is to protect the privacy of personal information that is collected and handled. For more information regarding data privacy regulation, refer to “Item 1. Business - Supervision and Regulation.” We may become subject to new legislation or regulation concerning cybersecurity or the privacy of personally identifiable information and personal financial information or of any other information we may store or maintain. We could be adversely affected if new legislation or regulations are adopted or if existing legislation or regulations are modified such that we are required to alter our systems or require changes to our business practices or privacy policies. If new or existing cybersecurity, data privacy, data protection, data transfer or data retention laws are implemented, interpreted or applied in a manner inconsistent with our current practices, including as a result of the network security incident discussed above, we may be subject to fines, litigation or regulatory enforcement actions or ordered to change our business practices, policies or systems in a manner that adversely impacts our operating results. In addition, any additional laws and regulatory enforcement measures will result in increased compliance costs. A failure to implement technological advances could negatively impact our business. The banking industry is undergoing technological changes with frequent introductions of new technology-driven products and services. In addition to improving customer services, the effective use of technology increases efficiency and enables financial institutions to reduce costs. Our future success will depend, in part, on our ability to address the needs of our customers by using technology to provide products and services that will satisfy customer demands for convenience as well as to create additional efficiencies in our operations. Many of our competitors have substantially greater resources than we do to invest in technological improvements. We may not be able to effectively implement new technology-driven products and services or successfully market such products and services to our customers. In addition, advances in technology such as digital, mobile, telephone, text, and online banking; e-commerce; and self-service automatic teller machines and other equipment, as well as changing customer preferences to access our products and services through digital channels, could decrease the value of our branch network and other assets. We may close or sell certain branches and restructure or reduce our remaining branches and work force. These actions could lead to losses on assets, expense to reconfigure branches and loss of customers in certain markets. As a result, our business, financial condition or results of operations may be adversely affected. Our business is susceptible to fraud and conduct risk. The Company’s business exposes it to fraud risk from loan and deposit customers, the parties they do business with, as well as from employees, contractors and vendors. The Company relies on financial and other data from new and existing customers which could turn out to be fraudulent when accepting such customers, executing their financial transactions and making and purchasing loans and other financial assets. In times of increased economic stress the Company is at increased risk of fraud losses. The Company believes it has underwriting and operational controls in place to prevent or detect such fraud, but cannot provide assurance that these controls will be effective in detecting fraud or that the Company will not experience fraud losses or incur costs or other damage related to such fraud, at levels that adversely affect financial results or reputation. The Company’s lending customers may also experience fraud in their businesses which could adversely affect their ability to repay their loans or make use of services. The Company’s and its customers’ exposure to fraud may increase the Company’s financial risk and reputation risk as it may result in unexpected loan losses that exceed those that have been provided for in the allowance for credit losses. In addition, the Company is subject to risk from the conduct of its employees, including the negative impact that can result from employee misconduct or failure by employees to conduct themselves in accordance with the Company’s policies, all of which could damage the Company’s reputation and result in loss of customers or other financial loss or expose the Company to increased regulatory or other risk. New lines of business, products or services and technological advancements may subject us to additional risks. From time to time, we implement new lines of business or offer new products and services within existing lines of business. There are substantial risks and uncertainties associated with these efforts, particularly in instances where the markets are not fully developed. In developing and marketing new lines of business and/or new products and services we invest significant time and resources. Initial 21 TriCo Bancshares 2023 10-K timetables for the introduction and development of new lines of business and/or new products or services may not be achieved, and price and profitability targets may not prove feasible. External factors, such as compliance with regulations, competitive alternatives, and shifting market preferences, may also impact the successful implementation of a new line of business or a new product or service. The financial services industry is continually undergoing rapid technological change with frequent introductions of new technology-driven products and services. Our future success depends, in part, upon our ability to address the needs of our customers by using technology to provide products and services that will satisfy customer demands, as well as to create additional efficiencies in our operations. Many of our competitors have substantially greater resources to invest in technological improvements. We may not be able to effectively implement new technology driven products and services or be successful in marketing these products and services to our customers. In addition, our implementation of certain new technologies, such as those related to artificial intelligence ("AI"), automation and algorithms, in our business processes may have unintended consequences due to their limitations or our failure to use them effectively. In addition, the growing reliance on AI technologies by vendors, business partners, and technology solutions or applications introduces additional risks, including but not limited to: Algorithmic Bias that may result in unintended discriminatory outcomes and harm our reputation, loss of proprietary and confidential information through use of AI technologies, unauthorized access or breaches of data could compromise the integrity of our systems with AI dependency, evolving regulations and legal frameworks surrounding AI may pose challenges leading to legal and financial consequences for non-compliance, and protecting the intellectual property associated with AI technologies may be challenging, and unauthorized use or infringement by third parties could bring harm to our competitive position or reputation. Furthermore, cloud technologies are also critical to the operation of our systems, and our reliance on cloud technologies is growing. Failure to successfully keep pace with technological change affecting the financial services industry could have a material adverse effect on our business, financial condition and results of operations. Furthermore, any new line of business, new product or service and/or new technology could have a significant impact on the effectiveness of our system of internal controls. Failure to successfully manage these risks in the development and implementation of new lines of business, new products or services and/or new technologies could have a material adverse effect on our business, financial condition and results of operations. Our failure to comply with anti-money laundering and anti-terrorism financing laws could have significant adverse consequences for us. The Bank Secrecy Act of 1970, the Patriot Act and other laws and regulations require financial institutions to institute and maintain an effective BSA/AML program, file suspicious activity reports and currency transaction reports and comply with other BSA/AML requirements. Our federal and state banking regulators, regularly review our BSA/AML program FinCEN. If BSA/AML our program is deemed deficient, we could be subject to liability, including fines, civil money penalties and other regulatory enforcement actions, which may include restrictions on our business operations and our ability to pay dividends, restrictions on mergers and acquisitions activity, restrictions on expansion, and restrictions on entering new business lines. Our failure to maintain and implement adequate programs to combat money laundering and terrorist financing could also have significant reputational consequences for us and, in turn, could have a material adverse effect on our business, financial condition or results of operations. We can be negatively affected if we fail to identify and address operational risks associated with the introduction of or changes to products, services and delivery platforms. When we launch a new product or service, introduce a new platform for the delivery or distribution of products or services (including mobile connectivity and cloud computing), or make changes to an existing product, service or delivery platform, it may not fully appreciate or identify new operational risks that may arise from those changes, or may fail to implement adequate controls to mitigate the risks associated with those changes. Any significant failure in this regard could diminish our ability to operate one or more of our businesses or result in: • • • • • • • potential liability to clients, counterparties and customers; increased operating expenses; higher litigation costs, including regulatory fines, penalties and other sanctions; damage to our reputation; impairment of our liquidity; regulatory intervention; or weaker competitive standing. Any of the foregoing consequences could materially and adversely affect our businesses and results of operations. Our business, financial condition and results of operations are subject to risk from changes in customer behavior. Individual, economic, political, industry-specific conditions and other factors outside of our control, such as fuel prices, energy costs, real estate values, inflation, taxes or other factors that affect customer income levels, could alter anticipated customer behavior, including borrowing, repayment, investment and deposit practices. Such a change in these practices could materially adversely affect our ability to anticipate business needs and meet regulatory requirements. Further, difficult economic conditions may negatively affect consumer 22 TriCo Bancshares 2023 10-K confidence levels. A decrease in consumer confidence levels would likely aggravate the adverse effects of these difficult market conditions on us, our customers and others in the financial institutions industry. Our risk management framework may not be effective in identifying and mitigating every risk to us. Any inadequacy or lapse in our risk management framework, governance structure, practices, models or reporting systems could expose us to unexpected losses, and our financial condition or results of operations could be materially and adversely affected. Any such inadequacy or lapse could: • • • • • • • • • hinder the timely escalation of material risk issues to our senior management and the Board of Directors; lead to business decisions that have negative outcomes for us; require significant resources and time to remediate; lead to non-compliance with laws, rules and regulations; attract heightened regulatory scrutiny; expose us to regulatory investigations or legal proceedings; subject us to litigation or regulatory fines, penalties or other sanctions; harm our reputation; or otherwise diminish confidence in TriCo. We rely on data to assess many of our various risk exposures. Any deficiencies in the quality or effectiveness of our data gathering, analysis and validation processes could result in ineffective risk management practices. These deficiencies could also result in inaccurate risk reporting. General Risk Factors We depend on key personnel and the loss of one or more of those key personnel may materially and adversely affect our prospects. Furthermore, our business could suffer if we fail to attract and retain skilled people. Our future operating results depend substantially upon the continued service of our executive officers and key personnel. Our future operating results also depend in significant part upon our ability to attract and retain qualified management, financial, technical, marketing, sales and support personnel. Competition for qualified personnel is intense, including with respect to compensation and emerging workplace practices, accommodations and remote work options, and we cannot ensure success in attracting or retaining qualified personnel. Our current or future approach to in-office and work-from-home arrangements may not meet the needs or expectations of our current or prospective employees or may not be perceived as favorable as compared to the arrangements offered by competitors, which could adversely affect our ability to attract and retain employees. There may be only a limited number of persons with the requisite skills to serve in these positions, and it may be increasingly difficult for us to hire personnel over time. Our business, financial condition or results of operations could be materially adversely affected by the loss of any of our key employees, or our inability to attract and retain skilled employees. Litigation, regulatory actions and compliance issues could subject us to significant fines, penalties, judgments, remediation costs and/or requirements resulting in increased expenses. As a financial institution, we are at times subject to actual and threatened claims, litigation, arbitration, reviews, investigations, and other proceedings, including proceedings by governments and regulatory authorities, involving a wide range of issues, including labor and employment, data protection, data security, network security, consumer protection, commercial disputes, goods and services offered by us and by third parties, and other matters. Litigation matters range from individual actions involving a single plaintiff to class action lawsuits and can involve claims for substantial or indeterminate alleged damages or for injunctive or other relief. Any of these types of proceedings can have an adverse effect on us because of legal costs, disruption of our operations, diversion of management resources, negative publicity, and other factors. The outcomes of these matters are inherently unpredictable and subject to significant uncertainties. We establish accruals for those matters when a loss is considered probable and the related amount is reasonably estimable. Additionally, when it is practicable and reasonably possible that it may experience losses in excess of established accruals, the we estimate possible loss contingencies. Determining legal reserves for possible losses from such matters involves judgment and may not reflect the full range of uncertainties and unpredictable outcomes. Until the final resolution of such matters, we may be exposed to losses in excess of the amount recorded, and such amounts could be material. Should any of our estimates and assumptions change or prove to have been incorrect, it could have a material effect on our business, financial condition and results of operations. In addition, it is possible that a resolution of one or more such proceedings, including as a result of a settlement, could involve licenses, sanctions, consent decrees, or orders requiring us to make substantial future payments, preventing us from offering certain products or services, requiring us to change our business practices in a manner materially adverse to our business, requiring development of non-infringing or otherwise altered products or technologies, damaging our reputation, or otherwise having a material effect on our operations. 23 TriCo Bancshares 2023 10-K We contest liability and/or the amount of damages as appropriate in each pending matter. The outcome of pending and future matters could be material to our results of operations, financial condition and cash flows depending on, among other factors, the level of our earnings for that period, and could adversely affect our business and reputation. For a discussion of certain legal proceedings, see the risk factor titled “We experienced a criminal cyberattack in February 2023, which resulted in the temporary interruption of our systems, disclosure of certain confidential information, litigation and governmental inquiries, all of which could damage our reputation or create additional financial and legal exposure.” In addition to litigation and regulatory matters, from time to time, through our operational and compliance controls, we identify compliance issues that require us to make operational changes and, depending on the nature of the issue, result in financial remediation to impacted customers. These self-identified issues and voluntary remediation payments could be significant depending on the issue and the number of customers impacted. They also could generate litigation or regulatory investigations that subject us to additional adverse effects on our business, results of operations and financial condition. Climate change could have a material negative impact on us and our clients. Our business, as well as the operations and activities of our clients, could be negatively impacted by climate change. Climate change presents both immediate and long-term risks to us and our clients, and these risks are expected to increase over time. Climate change presents multi-faceted risks, including: operational risk from the physical effects of climate events on the us and our clients’ facilities and other assets; credit risk from borrowers with significant exposure to climate risk; transition risks associated with the transition to a less carbon-dependent economy; and reputational risk from stakeholder concerns about our practices related to climate change, our carbon footprint, and our business relationships with clients who operate in carbon-intensive industries. The risks associated with climate change are rapidly changing and evolving in an escalating fashion, making them difficult to assess due to limited data and other uncertainties. We could experience increased expenses resulting from strategic planning, litigation, and technology and market changes, and reputational harm as a result of negative public sentiment, regulatory scrutiny, and reduced investor and stakeholder confidence due to our response to climate change and our climate change strategy, which, in turn, could have a material negative impact on our business, results of operations, and financial condition. In addition, ongoing legislative or regulatory uncertainties and changes regarding climate risk management and practices may result in higher regulatory, compliance, credit, and reputational risks and costs. 24 TriCo Bancshares 2023 10-K ITEM 1B. UNRESOLVED STAFF COMMENTS None. ITEM 1C. CYBERSECURITY Risk Management and Strategy The Company's information security program is designed with the goal of maintaining the safety and security of our systems and data and we employ a holistic process for overseeing and managing cybersecurity and related risks. This process is supported by both management and our board of directors. Our risk management program is designed to identify, assess, and mitigate risks across various aspects of our company, including financial, operational, regulatory, reputational, and legal. Cybersecurity is a critical component of this program, given the increasing reliance on technology and potential of cyber threats. Our Chief Information Security Officer (“CISO”) is primarily responsible for this cybersecurity component and, as discussed below, periodically reports to the Information Technology/Cybersecurity Committee (“IT/Cybersecurity Committee”) of our board of directors. Our objective for managing cybersecurity risk is to avoid or minimize the impacts efforts to penetrate, disrupt or misuse our systems or information. The structure of our information security program is designed around the National Institute of Standards and Technology (“NIST”) Cybersecurity Framework (“CSF”), regulatory guidance, and other industry standards. This does not imply that we meet any particular technical standards, specifications, or requirements, but rather that we use the NIST CSF as a guide to help us identify, assess and manage cybersecurity risks relevant to our business. In addition, we leverage certain industry and government associations, third-party benchmarking, audits, and threat intelligence feeds to facilitate and promote program effectiveness. Our CISO and our Chief Information Officer ("CIO"), along with key members of their teams, regularly collaborate with peer banks, industry groups, law enforcement, and policymakers to discuss cybersecurity trends and issues and identify best practices. The information security program is periodically reviewed by such personnel with the goal of addressing changing threats and conditions. We have established processes and systems designed to mitigate cyber risk, including regular and on-going education and training for employees, preparedness simulations and tabletop exercises, and recovery and resilience tests. We engage in regular assessments of our infrastructure, software systems, and network architecture, using internal cybersecurity experts and third-party specialists. We engage third parties, including vendors and other external service providers, to support our cybersecurity and data privacy processes such as risk assessments, program enhancements, and value-added user verification services. These third parties provide security services, including regular reviews of our security environment to provide an independent, industry-recognized risk rating and internal audits of our technology and security controls. Further, we deploy technical safeguards that are we believe are designed to help protect our information systems from cybersecurity threats, including firewalls, intrusion prevention and detection systems, endpoint detection and response, logging, monitoring and alerting, anti-malware functionality, email security, network security monitoring and access controls, which are evaluated and improved through vulnerability assessments and cybersecurity threat intelligence. Our third-party risk management program includes processes for identifying and managing material cybersecurity risks arising from third-party providers. The program actively engages with the enterprise-wide risk assessment process and partners with cyber risk management to report relevant risks to the IT/Cybersecurity Committee of our board of directors. Furthermore, our third-party risk management program includes cybersecurity as an aspect of its risk assessment of third parties with the objective that key risks are identified and addressed. Moreover, the program also considers risks associated with certain fourth parties, entities that are partners or subcontractors of our direct third-party vendors, through assessments carried out internally and by our third-party service providers. We maintain an Incident Response Plan that provides a documented framework for responding to actual or potential cybersecurity incidents, including timely notification of and escalation to the appropriate board-approved management committees, as discussed further below, and to the IT/Cybersecurity Committee of our board of directors. The Incident Response Plan is coordinated through the CISO and key members of management are embedded into the plan by its design. This pIan facilitates coordination across multiple parts of our organization and is evaluated at least annually. Lastly, we leverage internal and external auditors and independent external partners to periodically review our processes, systems, and controls, including with respect to our information security program, to assess their design and operating effectiveness and make recommendations to strengthen our risk management program. Governance Our CIO and CISO have extensive experience assessing and managing cybersecurity programs and cybersecurity risk. Our CIO and CISO have served in their positions since joining the Company in June, 2022 and January, 2022, respectively. Our CIO, who reports directly to the Chief Operating Officer, has 30 years of experience in various technology and security leadership positions across multiple industries including banking, insurance services, utilities, technology service providers, and as a member of the US Air Force. Prior to joining us, our CIO served as a CIO for multiple banks leading both technology and cybersecurity. Our CISO, reporting directly to the CIO, has over 35 25 TriCo Bancshares 2023 10-K years of experience in various technology and security leadership positions across multiple industries including banking, healthcare, automotive, mining, education, engineering, construction, and dairy product production. Our board of directors has approved various management committees including the IT/Cybersecurity Committee, which provides oversight and governance of the technology program and the information security program, as well as oversight and governance of the Company’s data and its storage. This committee is chaired by the CIO and includes various employees within the enterprise information security department, including the CIO and CISO, and other key departmental managers from throughout the entire company, including information technology, risk, compliance, operations and human resources/training. This committee generally meets quarterly to provide oversight of the risk management strategy, standards, policies, practices, controls, and mitigation and prevention efforts employed to manage security, data risks and incidents. The committee reports its findings to the management Enterprise Risk Committee. More frequent meetings occur from time to time in accordance with the Incident Response Plan to facilitate timely informing and monitoring efforts. The CISO reports on key issues, including significant cybersecurity and/or privacy incidents, discussed at management committee meetings and the actions taken in connection with those meetings to the IT/Cybersecurity Committee of the board of directors on a quarterly basis (or more frequently as may be required). Our Board of Directors has ultimate oversight of cybersecurity risk, which it manages as part of our enterprise risk management program. That program is utilized in making decisions with respect to company priorities, resource allocations, and oversight structures. The IT/ Cybersecurity Committee of the board of directors regularly reviews our cybersecurity program with management and reports to the Board of Directors. The IT/Cybersecurity Committee meets at least quarterly (or more frequently as may be required), and receives updates from the CISO on topics with respect to the cybersecurity program. The IT/Cybersecurity Committee reviews and approves our information security and technology budgets and strategies annually. Additionally, the Risk Committee of our board of directors reviews our cyber security risk profile on a quarterly basis. The management IT/Cybersecurity and Risk Committees each provide reports of their activities to the full board of directors at each board meeting in the event all board members are not present at the relevant board committee meetings. Cybersecurity Incidents In February 2023, we experienced a cyberattack that resulted in the temporary interruption of our systems, disclosure of certain confidential information, litigation and governmental inquiries, the consequences of which may be material. See “Item 1A. Risk Factors - We experienced a criminal cyberattack in February 2023, which resulted in the temporary interruption of our systems, disclosure of certain confidential information, litigation and governmental inquiries, all of which could damage our reputation or create additional financial and legal exposure.” in Item 1A. Risk Factors which is incorporated by reference into this Item 1C. In addition, we have experienced unrelated incidents involving unauthorized access to certain confidential information and systems. Typically, these incidents have involved attempts to commit fraud by taking control of a customer’s systems and/or emails, often by exploiting insider access or using compromised credentials. In other cases, the incidents have involved unauthorized access to certain of our customers’ private information, including credit card information, financial data, social security numbers or passwords. Some of these incidents have occurred at third-party providers, including third parties who provide us with various systems and/or services. For example, in 2023, one of our third-party vendors experienced a cybersecurity incident due to a previously unknown (i.e., zero-day) vulnerability in a popular file sharing software the vendor used called MOVEit Transfer. To date, none of these incidences have materially affected or are reasonably likely to materially affect the Company or our financial position or results of operations. Notwithstanding our defensive measures and processes, the threat posed by cyber-attacks is severe. Our internal systems, processes, and controls are designed to mitigate loss from cyberattacks. We continue to invest in the cybersecurity and resiliency of our networks and to enhance our internal controls and processes, which are designed to help protect our systems and infrastructure, and the information they contain. For more information regarding the risks we face from cybersecurity threats, see "Risks Related to Operations, Technology Systems, Accounting and Internal Controls" in Item 1A. Risk Factors which is incorporated by reference into this Item 1C. ITEM 2. PROPERTIES The Company is engaged in the banking business through 63 traditional branches, 6 in-store branches and 8 loan production offices in 31 counties throughout California including the counties of Butte, Colusa, Contra Costa, Del Norte, Fresno, Glenn, Humboldt, Kern, Lake, Los Angeles, Madera, Mendocino, Merced, Nevada, Orange, Placer, Sacramento, San Diego, San Francisco, San Mateo, Santa Clara, Shasta, Siskiyou, Sonoma, Stanislaus, Sutter, Tehama, Trinity, Tulare, Yolo and Yuba. All offices are constructed and equipped to meet prescribed security requirements. As of December 31, 2023, the Company owned 31 branch office locations, two administrative buildings that include branch locations, and 10 other buildings that are used as either administrative, operational, or loan production offices. The Company leased 30 branch office locations, 6 in-store branch locations, 8 loan production offices and 3 other operational buildings. Most of the leases contain multiple renewal options and provisions for rental increases, principally for changes in the cost of living index, property taxes and maintenance. All of the Company’s existing facilities are considered to be adequate for the Company’s present and future use. In the opinion of management, all properties are adequately covered by insurance. See “Note 7 – Premises and Equipment” to the consolidated financial statements at Part II, Item 8 of this report. ITEM 3. LEGAL PROCEEDINGS 26 TriCo Bancshares 2023 10-K TriCo and its subsidiaries are routinely subject to actual or threatened legal proceedings, including litigation and regulatory matters, arising in the ordinary course of business. Litigation matters range from individual actions involving a single plaintiff to class action lawsuits and can involve claims for substantial or indeterminate alleged damages or for injunctive or other relief. See “Item 1A - Risk Factors” and “Item 1C - Cybersecurity” for a discussion of the Bank’s cybersecurity attack in 2023. Neither the Company nor its subsidiaries are a party to any pending legal proceedings that are material, nor is their property the subject of any other material pending legal proceeding at this time. All other legal proceedings are routine and arise out of the ordinary course of the Company's business. None of those proceedings are currently expected to have a material adverse impact upon the Company’s consolidated financial position, its operations in any material amount not already accrued, after taking into consideration any applicable insurance. ITEM 4. MINE SAFETY DISCLOSURES Not applicable. 27 TriCo Bancshares 2023 10-K PART II ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES Common Stock Market Prices and Dividends The Company’s common stock is traded on the Nasdaq under the symbol “TCBK.” As of February 23, 2024, there were approximately 1,814 shareholders of record of the Company’s common stock. On February 23, 2024, the closing market price was $33.95 per share. Information regarding restrictions on dividends, as required by this Item, is set forth in Item 1: “Business - Dividends, Distributions and Regulatory Matters” and in Note 26 - “Regulatory Matters” of the Notes to consolidated financial statements and incorporated into this Item by reference. TriCo Bancshares Stock Performance The following graph presents the cumulative total yearly shareholder return from investing $100 on December 31, 2018, in each of TriCo common stock, the Russell 3000 Index, and the S&P Western Bank Index. The S&P Western Bank Index includes banks located in California, Oregon, Washington, Montana, Hawaii and Alaska with market capitalization similar to that of TriCo’s. The amounts shown assume that any dividends were reinvested. Index TriCo Bancshares Russell 3000 Index SNL Western Bank Index 12/31/2018 12/31/2019 12/31/2020 12/31/2021 12/31/2022 12/31/2023 100.00 100.00 100.00 123.36 129.65 119.27 109.99 154.05 86.36 136.99 191.03 131.33 166.52 151.91 99.76 144.78 188.30 96.00 Period Ending ITEM 6. [RESERVED] ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS Introduction The following discussion and analysis is designed to provide a better understanding of the significant changes and trends related to the Company and the Bank’s financial condition, operating results, asset and liability management, liquidity and capital resources and should be read in conjunction with the consolidated financial statements of the Company and the related notes at Part II, Item 8 of this report. In March 2022, the Company closed the acquisition of Valley Republic Bancorp. Historical periods prior to March 25, 2022 reflect results of legacy Trico Bancshares operations. Subsequent to closing, results reflect all post-acquisition activity. For further information, refer to Note 2 “Business Combinations” of the Notes to Consolidated Financial Statements. 28 TriCo Bancshares 2023 10-K Index ValueTotal Return PerformanceTriCo BancsharesRussell 3000 IndexS&P Western Bank Index12/31/1812/31/1912/31/2012/31/2112/31/2212/31/23100150200Financial Overview In 2023, the Company reported net income of $117.4 million, an $8.1 million or 6.5% decrease from the prior year. Earnings per share on a diluted basis for the year were $3.52, down 8.1% from the prior year. The current year net income reported was negatively impacted by noninterest expense. In 2023, noninterest expense was reported at $233.1 million, an increase of $16.5 million or 7.6% increase from the prior year. Net interest income on a fully tax equivalent (FTE) basis, a non-GAAP financial measure, was $358.2, an increase of $10.6 million, or 3.1%, from 2022. The increase in FTE net interest income reflected the benefit of a $69.7 million, or 0.8%, increase in average earning assets in addition to a 8 basis point increase in the FTE net interest margin to 3.96%. Average earning asset growth included an $690.9 million, or 11.7% increase in average loans and leases, offset by a $195.0 million or 7.3% decrease in average securities. The decrease in average securities was driven by the redeployment of liquidity from prepayments and maturities into loans during 2023. The net interest margin expansion was driven by the higher rate environment driving an increase in loan and lease and investment security yields, partially offset by higher cost of funds from both deposits and borrowings. Total average interest-bearing deposits was $5.0 billion and $4.9 billion during 2023 and 2022, respectively, while average other borrowings totaled $430.1 million and $33.4 million, respectively, during the same periods. The increase in net interest expense on average interest-bearing liabilities increased by $72.1 million or 758.9% to $81.7 million during 2023 as compared to 2022. The provision for credit losses increased $5.5 million to $24.0 million, primarily due to elevated qualitative reserves driven by CA unemployment trends and rising Corporate BBB bond yields, and to a lesser extent, organic loan and lease growth. The allowance for credit losses (ACL) was $121.5 million, or 1.79% of total loans and leases, at December 31, 2023, compared to $105.7, or 1.64% of total loans and leases, at December 31, 2022. Noninterest income was $61.4 million, down $1.6 million, or 2.6%, from the prior year. Noninterest expense was $233.1 million, up $16.5 million, or 7.6%, from the prior year. The year over year changes in noninterest income and noninterest expense were impacted by the VRB acquisition, completed in March 2022, as well as rising technology and regulatory costs in addition to the rising costs of operations associated with levels of high inflation. Noninterest income was additionally negatively impacted by a decline in gain on sale of mortgage loans, as is typically observed during periods of a rising rate environment, totaling $1.1 million, to $1.2 million for the 2023 year. The tangible common equity to tangible assets ratio, a non-GAAP financial measure, was 8.8% at December 31, 2023, up 120 basis points from December 31, 2022, primarily due to an increase in tangible common equity related primarily to the retention of 2023 earnings. 29 TriCo Bancshares 2023 10-K TRICO BANCSHARES Financial Summary (In thousands, except per share amounts; unaudited) Year ended December 31, Interest income Interest expense Net interest income (Provision for) benefit from loan losses Noninterest income Noninterest expense Income before income taxes Provision for income taxes Net income Share Data Earnings per share: Basic Diluted Per share: Dividends paid Book value at period end Tangible book value at period end (2) Average common shares outstanding Average diluted common shares outstanding Shares outstanding at period end Financial Ratios During the period: Return on average assets Return on average equity Net interest margin(1) Efficiency ratio Average equity to average assets Dividend payout ratio At period end: Equity to assets Total capital to risk-weighted assets Balance Sheet Data Total investments Total loans Total assets Total non-interest bearing deposits Total deposits Total other borrowings Total junior subordinated debt Total shareholders’ equity Total tangible equity (2) 2023 2022 2021 $ 438,354 $ 355,505 $ $ $ $ $ $ $ (81,677) 356,677 (23,990) 61,400 (233,182) 160,905 (43,515) (9,529) 345,976 (18,470) 63,046 (216,645) 173,907 (48,488) 117,390 $ 125,419 $ $ $ $ $ $ 3.53 3.52 1.20 34.86 25.39 33,267 33,352 33,268 1.19 % 10.65 % 3.96 % 55.77 % 11.17 % 33.99 % 11.70 % 14.70 % $ $ $ $ $ 3.85 3.83 1.10 31.39 21.76 32,584 32,721 33,332 1.28 % 11.67 % 3.88 % 52.97 % 11.00 % 28.54 % 10.54 % 14.19 % $ 2,305,882 $ 2,633,269 $ 6,794,470 9,910,089 2,722,689 7,834,038 632,582 101,099 1,159,682 6,450,447 9,930,986 3,502,095 8,329,013 264,605 101,040 1,046,416 $ 844,688 $ 725,304 $ 277,047 (5,508) 271,539 6,775 63,664 (178,275) 163,703 (46,048) 117,655 3.96 3.94 1.00 33.64 25.80 29,721 29,882 29,730 1.43 % 12.10 % 3.58 % 53.18 % 11.84 % 25.26 % 11.61 % 15.42 % 2,427,885 4,916,624 8,614,787 2,979,882 7,367,159 50,087 58,079 1,000,184 766,943 (1) Fully taxable equivalent (FTE) (2) Tangible equity is calculated by subtracting Goodwill and Other intangible assets from total shareholders’ equity. Management believes that tangible equity is meaningful because it is a measure that the Company and investors commonly use to assess capital adequacy. Tangible book value is calculated by dividing tangible equity by shares outstanding at period end. See tables below for further details. As TriCo Bancshares has not commenced any business operations independent of the Bank, the following discussion pertains primarily to the Bank. Average balances, including such balances used in calculating certain financial ratios, are generally comprised of average daily balances for the Company. Within Management’s Discussion and Analysis of Financial Condition and Results of Operations, interest income and net interest income may be presented on a fully tax-equivalent (FTE) basis. The presentation of interest income and net interest income on a FTE basis is a common practice within the banking industry. Interest income and net interest income are shown on a non-FTE basis within Part II, Item 7 and Item 8 of this report, and a reconciliation of the FTE and non-FTE presentations is provided below in the discussion of net interest income. In addition to results presented in accordance with generally accepted accounting principles in the United States of America (GAAP), this 10-K contains certain non-GAAP financial measures. Management has presented these non-GAAP financial measures because it believes that they provide useful and comparative information to assess trends in the Company's core operations reflected in the periods presented 30 TriCo Bancshares 2023 10-K and facilitate the comparison of our performance with the performance of our peers. However, these non-GAAP financial measures are supplemental and are not a substitute for any analysis based on GAAP. Where applicable, comparable earnings information using GAAP financial measures is also presented. Because not all companies use the same calculations, our presentation may not be comparable to other similarly titled measures as calculated by other companies. For a reconciliation of these non-GAAP financial measures, see the tables below: (dollars in thousands) Net interest margin Acquired loans discount accretion, net: Amount (included in interest income) Effect on average loan yield Effect on net interest margin (FTE) Net interest margin (FTE) Net interest margin less effect of acquired loan discount accretion (Non-GAAP) PPP loans yield, net: Amount (included in interest income) Effect on net interest margin (FTE) Net interest margin less effect of PPP loan yield (Non-GAAP) Acquired loan discount accretion and PPP loan yield, net: Amount (included in interest income) Effect on net interest margin (FTE) Net interest margin less effect of acquired loan discount accretion and PPP yields, net (Non-GAAP) (dollars in thousands) Pre-tax pre-provision return on average assets or equity Net income (GAAP) Exclude provision for income taxes Exclude provision for credit losses Net income before income tax and provision expense (Non-GAAP) Average assets (GAAP) Average equity (GAAP) Return on average assets (GAAP) (annualized) Pre-tax pre-provision return on average assets (Non-GAAP) (annualized) Return on average equity (GAAP) (annualized) Pre-tax pre-provision return on average equity (Non-GAAP) (annualized) Twelve months ended December 31, 2023 December 31, 2022 $5,651 0.09 % 0.06 % 3.96 % 3.90 % $12 — % 3.96 % $5,663 0.06 % 3.90 % $5,465 0.09 % 0.06 % 3.88 % 3.81 % $2,390 0.02 % 3.86 % $7,855 0.08 % 3.80 % Twelve months ended December 31, 2023 December 31, 2022 $117,390 43,515 23,990 $184,895 $125,419 48,488 18,470 $192,377 $9,870,189 $1,102,436 $9,771,601 $1,074,437 1.19 % 1.87 % 10.65 % 16.77 % 1.28 % 1.97 % 11.67 % 17.90 % 31 TriCo Bancshares 2023 10-K (dollars in thousands) Return on tangible common equity Average total shareholders' equity Exclude average goodwill Exclude average other intangibles Average tangible common equity (Non-GAAP) Net income (GAAP) Exclude amortization of intangible assets, net of tax effect Tangible net income available to common shareholders (Non-GAAP) Return on average equity Return on average tangible common equity (Non-GAAP) (dollars in thousands) Tangible shareholders' equity to tangible assets Shareholders' equity (GAAP) Exclude goodwill and other intangible assets, net Tangible shareholders' equity (Non-GAAP) Total assets (GAAP) Exclude goodwill and other intangible assets, net Total tangible assets (Non-GAAP) Shareholders' equity to total assets (GAAP) Tangible shareholders' equity to tangible assets (Non-GAAP) (dollars in thousands) Tangible common shareholders' equity per share Tangible shareholders' equity (Non-GAAP) Twelve months ended December 31, 2023 December 31, 2022 $1,102,436 $1,074,437 304,442 13,611 $784,383 $117,390 4,309 $121,699 10.65 % 15.52 % 287,904 15,901 $770,632 $125,419 4,461 $129,880 11.67 % 16.85 % Three months ended December 31, 2023 December 31, 2022 $1,159,682 $1,046,416 314,994 $844,688 $9,910,089 314,994 $9,595,095 11.70 % 8.80 % 321,112 $725,304 $9,930,986 321,112 $9,609,874 10.54 % 7.55 % Three months ended December 31, 2023 December 31, 2022 $844,688 $725,304 Common shares outstanding at end of period 33,268,102 33,331,513 Common shareholders' equity (book value) per share (GAAP) Tangible common shareholders' equity (tangible book value) per share (Non-GAAP) $34.86 $25.39 $31.39 $21.76 Critical Accounting Policies and Estimates In preparing the consolidated financial statements in accordance with generally accepted accounting principles in the United States of America (GAAP), management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the period. Actual results could differ significantly from those estimates. Our most significant accounting policies and estimates and their related application are discussed below. Allowance for Credit Losses The Company’s method for assessing the appropriateness of the allowance for credit losses includes specific allowances for individually analyzed loans, formula allowance factors for pools of credits, and qualitative considerations which include, among other things, current and 32 TriCo Bancshares 2023 10-K forecast economic and environmental factors (e.g., interest rates, growth, economic conditions, etc.). Allowance factors for loan pools were based on historical loss experience by product type and prior risk rating. Management estimates the ACL balance using relevant information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. The allowance for credit losses is measured on a collective (pool) basis when similar risk characteristics exist. Historical credit loss experience provides the basis for the estimation of expected credit losses, which captures loan balances as of a point in time to form a cohort, then tracks the respective losses generated by that cohort of loans over the remaining life. The Company has identified and accumulated loan cohort historical loss data beginning with the fourth quarter of 2008 and through the current period. In situations where the Company's actual loss history was not statistically relevant, the loss history of peers, defined as financial institutions with assets greater than three billion and less than ten billion, were utilized to create a minimum loss rate. Adjustments to historical loss information are made for differences in relevant current loan-specific risk characteristics, such as historical timing of losses relative to the loan origination. In its current expected credit loss forecasting framework, the Company incorporates forward-looking information through the use of macroeconomic scenarios applied over the forecasted life of the assets. These macroeconomic scenarios incorporate variables that have historically been key drivers of increases and decreases in credit losses. These variables include, but are not limited to, changes in environmental conditions, such as California unemployment rates, household debt levels, and the pace of change in corporate bond yields. The Company also considers macroeconomic forecasts to estimate the ACL. There is a greater chance that the Company would suffer a loss from a loan that was risk rated less than satisfactory than if the loan was last graded satisfactory. As such, the proper risk grading of loans in the portfolio is important to the determination of the calculation of and determination of adequacy of the allowance for credit losses. Utilizing the historical loss data described above, the Company applies reserve rates within any unique pool based on its loss and risk grade migration. Therefore, within any given pool, a larger loss estimation factor is applied to less than satisfactory loans as compared to those that the Company last graded as satisfactory. The resulting allowance for any pool is the sum of the calculated reserves determined in this manner. Certain loans are not included in pools of loans that are collectively evaluated. The segregation of these loans is based on the results from analysis of individually identified credits that meet management’s criteria for individual evaluation. These loans are first reviewed individually to determine if such loans have a unique risk profile that would warrant individual evaluation. Loans where management has concluded that it is probable that the borrower will be unable to pay all amounts due under the original contractual terms are removed from the pools of loans collectively evaluated. They are then specifically reviewed and evaluated individually by management for loss potential by evaluating sources of repayment, including collateral as applicable, and a specified allowance for credit losses is established where necessary. By definition, any loan that management has placed on non-accrual is required to be individually evaluated, however, not all individually evaluated loans need to be placed on non-accrual. Because current economic conditions and forecasts can change and future events make it inherently difficult to predict the anticipated amount of estimated credit losses on loans, management's determination of the appropriateness of the ACL, could change significantly. It is difficult to estimate how potential changes in any one economic factor or input might affect the overall allowance because a wide variety of factors and inputs are considered in estimating the allowance and changes in those factors and inputs considered may not occur at the same rate and may not be consistent across all product types. Additionally, changes in factors and inputs may move independently of one another, such that improvement in one or certain factors may offset deterioration in others. Thus, as a result of the significant size of the loan portfolio, the numerous assumptions in the model, and the high degree of potential change in such assumptions, there is a high degree of sensitivity to the reported amounts. Management believes that the ACL was adequate as of December 31, 2023. Other Accounting Policies and Estimates that are Not Considered Critical On an on-going basis, the Company evaluates its estimates, including those that may materially affect the financial statements and are related to investments, mortgage servicing rights, fair value measurements, retirement plans, intangible assets and the fair value of acquired assets and liabilities. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. The Company’s policies related to these estimates can be found in Note 1 in the financial statements at Part II, Item 8 of this report. Geographical Descriptions For the purpose of describing the geographical location of the Company’s operations, the Company has defined northern California as that area of California north of, and including, Stockton to the east and San Jose to the west; central California as that area of the state south of Stockton and San Jose, to and including, Bakersfield to the east and San Luis Obispo to the west; and southern California as that area of the state south of Bakersfield and San Luis Obispo. Results of Operations Average balances, including balances used in calculating certain financial ratios, are generally comprised of average daily balances for the Company. Within Management’s Discussion and Analysis of Financial Condition and Results of Operations, certain performance measures including interest income, net interest income, net interest yield, and efficiency ratio are generally presented on a fully tax-equivalent (FTE) 33 TriCo Bancshares 2023 10-K basis. The Company believes the use of these non-generally accepted accounting principles (non-GAAP) measures provides additional clarity in assessing its results. Net Interest Income Net interest income is our largest source of revenue and is the difference between the interest earned on interest-earning assets (generally loans, leases and investment securities) and the interest expense incurred in connection with interest-bearing liabilities (generally deposits and borrowed funds). The level of net interest income is primarily a function of the difference between the effective yield on our average interest-earning assets and the effective cost of our interest-bearing liabilities. These factors are influenced by the pricing and mix of interest-earning assets and interest-bearing liabilities which, in turn, are impacted by external factors such as local economic conditions, competition for loans and deposits, the monetary policy of the FRB and market interest rates. For further discussion, refer to “—Risk Factors – Risks Related to Interest Rates.” Following is a summary of the Company’s net interest income for the periods indicated (dollars in thousands): Interest income Interest expense Net interest income (not FTE) FTE adjustment Net interest income (FTE) Net interest margin (FTE) Acquired loans discount accretion: Purchased loan discount accretion Effect on average loan yield Effect of purchased loan discount accretion on net interest margin (FTE) Year ended December 31, 2023 2022 2021 $ 438,354 $ 355,505 $ 277,047 (81,677) 356,677 1,536 (9,529) (5,508) 345,976 1,560 271,539 1,071 $ 358,213 $ 347,536 $ 272,610 3.96 % 3.88 % 3.58 % $ 5,651 $ 5,465 $ 8,091 0.09 % 0.06 % 0.09 % 0.07 % 0.17 % 0.11 % Net interest income (FTE) during the year ended December 31, 2023 increased $10.7 million or 3.1% to $358.2 million compared against $347.5 million during the year ended December 31, 2022. The increased amount of net interest income reflects growth in total average loan balances outstanding and the correlated yields in both loans and investments during 2023. Average loan balances increased by $691 million or 11.7% from December 31, 2022. Meanwhile, the yield on interest earning assets was 4.87% and 3.98% for the years ended December 31, 2023 and 2022, respectively. This 89 basis point increase in total earning asset yield was primarily attributable to a 58 basis point increase in total loan yields and a 80 basis point increase in yields on total investments. Of the 58 basis point increase in loan yields, 7 basis points was attributable to increased volume in average loans outstanding, and 51 basis points from elevated interest rates. There was no change attributed to the accretion of purchased loan fees. The costs of total interest bearing liabilities increased 129 basis points to 1.48% during the year ended December 31, 2023, as compared to 0.19% for the year ended December 31, 2022. During the same period, costs associated with interest bearing deposits increased by 100 basis points to 1.10% as compared to 0.10% in the prior year. The increase in interest expense for the year ended December 31, 2023, as compared to the trailing year, was due to the increased rate environment for both the interest-bearing deposit expense and other borrowings interest expense. Net interest income (FTE) during the year ended December 31, 2022 increased $74.9 million or 27.5% to $347.5 million compared against $272.6 million during the year ended December 31, 2021. The increased amount of net interest income reflects growth in both total average loan and investment balances outstanding and the correlated yields, during 2022. Average loan balances, inclusive of acquisitions, increased by $1.5 billion or 30.4% from December 31, 2021. The yield on interest earning assets was 3.98% and 3.65% for the years ended December 31, 2022 and 2021, respectively. This 33 basis point increase in total earning asset yield was primarily attributable to a 11 basis point decrease in total loan yields and a 85 basis point increase in yields on total investments. Of the 11 basis point decrease in yields on loans, a 3 basis point decline was attributable to decreases in market rates, as well as an 8 basis point benefit from the accretion of purchased loans. The costs of total interest bearing liabilities increased 6 basis points to 0.19% during the year ended December 31, 2022, as compared to 0.13% for the year ended December 31, 2021. During the same period, costs associated with interest bearing deposits increased by 2 basis points to 0.10% as compared to 0.08% in the prior year. The increase in interest expense for the year ended December 31, 2022, as compared to the trailing year, was due largely to the increased rate environment for both the interest-bearing deposit expense and other borrowings interest expense. For more information related to loan interest income, including loan purchase discount accretion, see the Summary of Average Balances, Yields/Rates and Interest Differential and Note 27 to the consolidated financial statements at Part II, Item 8 of this report. The “Yield” and “Volume/Rate” tables shown below are useful in illustrating and quantifying the developments that affected net interest income during 2023 and 2022. Summary of Average Balances, Yields/Rates and Interest Differential – Yield Tables The following tables present, for the periods indicated, information regarding the Company’s consolidated average assets, liabilities and 34 TriCo Bancshares 2023 10-K shareholders’ equity, the amounts of interest income from average earning assets and resulting yields, and the amount of interest expense paid on interest-bearing liabilities. Average loan balances include nonperforming loans. Interest income includes proceeds from loans on nonaccrual loans only to the extent cash payments have been received and applied to interest income. Yields on securities and certain loans have been adjusted upward to reflect the effect of income thereon exempt from federal income taxation at the statutory tax rate applicable during the period presented (dollars in thousands): Year ended December 31, 2023 Interest Income/ Expense Average Balance Rates Earned /Paid Average Balance 2022 Interest Income/ Expense Rates Earned /Paid Average Balance 2021 Interest Income/ Expense Rates Earned /Paid $ 6,555,886 $ 356,698 5.44 % $ 5,841,770 $ 282,985 4.84 % $ 4,625,410 $ 225,626 4.88 % 1,360 12 0.88 % 24,590 2,390 9.72 % 250,391 16,643 6.65 % Assets: Loans PPP Loans Investment securities—taxable 2,272,301 75,203 3.31 % 2,459,032 60,499 2.46 % 1,914,788 30,352 1.59 % Investment securities— nontaxable (1) Total investments Cash at Federal Reserve and other banks 181,766 6,656 3.66 % 190,339 6,759 3.55 % 160,863 4,639 2.88 % 2,454,067 81,859 3.34 % 2,649,371 67,258 2.54 % 2,075,651 34,991 1.69 % 26,469 1,321 4.99 % 452,300 4,432 0.98 % 663,801 858 0.13 % Total interest-earning assets 9,037,782 439,890 4.87 % 8,968,031 357,065 3.98 % 7,615,253 278,118 3.65 % Other assets Total assets 832,407 $ 9,870,189 Liabilities and shareholders’ equity: 803,570 $ 9,771,601 594,420 $ 8,209,673 Interest-bearing demand deposits $ 1,709,930 $ 11,190 0.65 % $ 1,720,932 $ 452 0.03 % $ 1,493,922 $ 327 0.02 % Savings deposits Time deposits Total interest-bearing deposits Other borrowings Junior subordinated debt Total interest-bearing liabilities Noninterest-bearing deposits Other liabilities Shareholders’ equity Total liabilities and shareholders’ equity $ 9,870,189 Net interest spread (2) Net interest income and interest margin (3) 2,805,424 31,444 1.12 % 2,878,189 3,356 0.12 % 2,360,605 473,688 12,453 2.63 % 302,619 881 0.29 % 324,636 1,256 1,735 0.05 % 0.53 % 4,989,042 55,087 1.10 % 4,901,740 4,689 0.10 % 4,179,163 3,318 0.08 % 430,736 19,712 101,064 6,878 4.58 % 6.81 % 33,410 91,138 421 1.26 % 43,236 22 0.05 % 4,419 4.85 % 57,844 2,168 3.75 % 5,520,842 81,677 1.48 % 5,026,288 9,529 0.19 % 4,280,243 5,508 0.13 % 3,068,839 178,072 1,102,436 3,492,713 178,163 1,074,437 $ 9,771,601 2,837,745 119,471 972,214 $ 8,209,673 3.39 % 3.79 % 3.52 % $ 358,213 3.96 % $ 347,536 3.88 % $ 272,610 3.58 % (1) The fully-taxable equivalent (FTE) adjustment for interest income of non-taxable investment securities was $1,536, $1,560, and $1,070 for the years ended December 31, 2023, 2022 and 2021, respectively. (2) Net interest spread represents the average yield earned on interest-earning assets less the average rate paid on interest-bearing liabilities. (3) Net interest margin is computed by dividing net interest income by total average earning assets. 35 TriCo Bancshares 2023 10-K Summary of Changes in Interest Income and Expense due to Changes in Average Asset and Liability Balances and Yields Earned and Rates Paid – Volume/Rate Tables The following table sets forth a summary of the changes in the Company’s interest income and interest expense from changes in average asset and liability balances (volume) and changes in average interest rates for the periods indicated. Changes applicable to both rate and volume have been included in the rate variance. Amounts are calculated on a fully taxable equivalent basis: 2023 over 2022 2022 over 2021 Volume Rate Total Volume Rate Total Increase (decrease) in interest income: Loans $ 32,305 $ 39,029 $ 71,334 $ 114,211 $ (71,105) $ Investment securities—taxable Investment securities—nontaxable Cash at Federal Reserve and other banks Total interest-earning assets Increase (decrease) in interest expense: Interest-bearing demand deposits Savings deposits Time deposits Other borrowings Junior subordinated debt Total interest-bearing liabilities (304) (4,594) (4,173) 23,234 (3) (87) 496 5,006 481 5,893 202 19,298 1,062 59,591 10,741 28,175 11,076 14,285 1,978 66,255 (102) 14,704 (3,111) 82,825 10,738 28,088 11,572 19,291 2,459 72,148 8,653 849 (275) 21,494 1,270 3,849 123,438 (44,492) 45 259 (117) (5) 1,249 1,431 80 1,841 (737) 404 1,002 2,590 43,106 30,147 2,119 3,574 78,946 125 2,100 (854) 399 2,251 4,021 Increase (decrease) in net interest income $ 17,341 $ (6,664) $ 10,677 $ 122,007 $ (47,082) $ 74,925 Year Over Year Balance Sheet Change Ending balances ($’s in thousands) Total assets Total loans Total loans, excluding PPP Total investments Total deposits Total other borrowings Provision for Credit Losses As of December 31, 2023 2022 $ Change % Change $ 9,910,089 $ 9,930,986 $ 6,794,470 6,793,334 2,305,882 7,834,038 6,450,447 6,448,845 2,633,269 8,329,013 $ 632,582 $ 264,605 $ (20,897) 344,023 344,489 (327,387) (494,975) 367,977 (0.2) % 5.3 % 5.3 % (12.4) % (5.9) % 139.1 % The provision for credit losses during any period is the sum of the allowance for credit losses required at the end of the period and any net charge-offs during the period, less the allowance for credit losses required at the beginning of the period, and less any recoveries during the period. See the Tables labeled “Allowance for Credit Losses – December 31, 2023 and 2022” at Note 5 in Item 8 of Part II of this report for the components that make up the provision for credit losses for the years ended December 31, 2023 and 2022. The Company recorded a provision for credit losses of $24.0 million during the year ended December 31, 2023, versus $18.5 million during the trailing year end. The increase in required provisioning during 2023 was largely attributed to elevated qualitative reserves driven by CA unemployment trends and rising Corporate BBB bond yields, and to a lesser extent, organic loan and lease growth. The Company recorded a provision for credit losses of $18.5 million during the year ended December 31, 2022, versus a reversal of credit losses totaling $6.8 million during the trailing year end. The increase in required provisioning during 2022 was largely attributed to the $10.8 million in day 1 required reserves from loans acquired in connection with the VRB merger in the first quarter of 2022. Additionally, the Company designated certain loans and leases purchased from VRB as PCD, which required $2.0 million in additional credit reserves as of the acquisition date. For PCD loans and leases, the initial estimate of expected credit losses is recognized in the ACL on the date of acquisition using the same methodology as other loans and leases held-for-investment. The remaining increase in the allowance for credit losses was the result of changes in loan volume and changes in credit quality associated with levels of classified, past due and non- performing loans in addition to changes in qualitative factors. Net charge-offs for the year ended December 31, 2023 totaled $6.6 million, as compared to net recoveries of $0.3 million for the year ended December 31, 2022. Total nonperforming loans increased by 13 basis points to 0.46% of total loans at December 31, 2023 from 0.33% of total loans at December 31, 2022. For further details of the change in nonperforming loans during the period ended December 31, 2023 see the Tables, and associated narratives, labeled “Changes in nonperforming assets during the year ended December 31, 2023” and “Changes 36 TriCo Bancshares 2023 10-K in nonperforming assets during the three months ended December 31, 2023” under the heading “Asset Quality and Non-Performing Assets” below. The following table summarizes the components of the provision for (benefit to) credit losses during the periods indicated (dollars in thousands): (dollars in thousands) Provision for (reversal of) allowance for credit losses Change in reserve for unfunded loan commitments Total provision for (reversal of) credit losses Year ended December 31, 2023 2022 2021 $ $ 22,455 $ 17,945 $ 1,535 525 23,990 $ 18,470 $ (7,165) 390 (6,775) The provision for credit losses is based on management’s evaluation of inherent risks in the loan portfolio and a corresponding analysis of the allowance for credit losses. Additional discussion on loan quality, our procedures to measure loan impairment, and the allowance for credit losses is provided under the heading “Asset Quality and Non-Performing Assets” below. Non-interest Income The following table summarizes the Company’s non-interest income for the periods indicated (dollars in thousands): ATM and interchange fees Service charges on deposit accounts Other service fees Mortgage banking service fees Change in value of mortgage loan servicing rights Total service charges and fees Asset management and commission income Increase in cash value of life insurance Gain on sale of loans Lease brokerage income Sale of customer checks Loss on sale of investment securities Gain (loss) on marketable equity securities Other Total other non-interest income Total non-interest income Year Ended December 31, 2023 2022 2021 $ 26,459 $ 26,767 $ 17,595 4,732 1,808 (506) 50,088 3,150 4,517 1,166 441 1,383 (284) 36 903 16,536 4,274 1,887 301 49,765 3,986 2,858 2,342 820 1,167 — (340) 2,448 11,312 13,281 $ 61,400 $ 63,046 $ 25,356 14,013 3,570 1,881 (872) 43,948 3,668 2,775 9,580 746 459 — (86) 2,574 19,716 63,664 Non-interest income decreased $1.6 million or 2.6% to $61.4 million during the year ended December 31, 2023, as compared to $63.0 million during the year ended December 31, 2022. During 2023, total service charges and fees increased $0.3 million which is net of approximately $0.9 million in waived or reversed fees related to the network outage that occurred in the first quarter of the year. Mortgage origination related activity has declined year over year due to elevated interest rates, as the income recorded from the sale of loans was down $1.2 million or 50.2%. Changes in interest rates also led to a decline in fair value of mortgage servicing rights during the twelve months ended December 31, 2023, which decreased by $0.8 million or 268.1%, as compared to the trailing twelve month period ended. Other income declined $1.5 million or 63.1%, $0.6 million of which is attributed to fees from the sale of deposits during the fourth quarter of 2022. Non-interest income decreased by $0.6 million or 1.0% to $63.0 million during the twelve months ended December 31, 2022, compared to $63.6 million during the same period ended December 31, 2021. Generally, the increases in recurring non-interest income service charges and fees reflected during 2022 is the result of the VRB merger closing in March of 2022, and therefore, not reflected in 2021 operating results. As an offset, increases in interest rates during 2022 led to significant declines in mortgage lending related activity, resulting in a decrease of $7.2 million in gain from the sale of loans, as compared to the trailing year then ended. 37 TriCo Bancshares 2023 10-K Non-interest Expense The following table summarizes the Company’s other non-interest expense for the periods indicated (dollars in thousands): Year Ended December 31, 2023 2022 2021 Base salaries, net of deferred loan origination costs $ 94,564 $ 84,861 $ Incentive compensation Benefits and other compensation costs Total salaries and benefits expense Occupancy Data processing and software Equipment Intangible amortization Advertising ATM and POS network charges Professional fees Telecommunications Regulatory assessments and insurance Merger and acquisition expenses Postage Operational losses Courier service Gain on sale or acquisition of foreclosed assets Loss (gain) loss on disposal of fixed assets Other miscellaneous expense Total other non-interest expense Total non-interest expense Average full-time equivalent staff 15,557 25,674 135,795 16,135 18,933 5,644 6,118 3,531 7,080 7,358 2,547 5,276 — 1,236 2,444 1,851 (133) 23 19,344 97,387 17,908 27,083 129,852 15,493 14,660 5,733 6,334 3,694 6,984 4,392 2,298 3,142 6,253 1,147 1,000 2,013 (481) (1,070) 15,201 86,793 69,844 14,957 21,550 106,351 14,910 13,985 5,358 5,464 2,899 6,040 3,657 2,253 2,581 1,523 710 964 1,214 (233) (439) 11,038 71,924 $ 233,182 $ 216,645 $ 178,275 1,214 1,169 1,039 Total non-interest expense increased $16.5 million or 7.6% to $233.2 million during the year ended December 31, 2023, as compared to $216.6 million for the comparative period in 2022, for reasons primarily associated with the acquisition of Valley Republic Bank in March of 2022 which resulted in expense increases for nearly every identified category. Merger and acquisition expenses associated with this acquisition totaled $6.2 million for the twelve-month period ended 2022. Regulatory assessment charges also increased by approximately $1.2 million during 2023 as a result of increases in assessment rates. Other miscellaneous expenses also increased by $4.1 million in 2023 due to, among other things, changes in regulatory requirements which resulted in an estimated $0.8 million in refunds to customers previously charged non-sufficient funds fees, changes in the valuation of other real estate owned which contributed to $0.9 million in variance from the prior year, and other increases generally associated with increased operational costs. Non-interest expense increased by $38.3 million or 21.5% to $216.6 million during the year ended December 31, 2022 as compared to $178.2 million for the trailing twelve month period. Generally, the increases in recurring non-interest expenses and FTEs during 2022 is the result of the VRB merger closing in March of 2022, and therefore, not reflected in 2021 operating results. 38 TriCo Bancshares 2023 10-K The provisions for income taxes applicable to income before taxes for the years ended December 31, 2023, 2022 and 2021 differ from amounts computed by applying the statutory Federal income tax rates to income before taxes. The effective tax rate and the statutory federal income tax rate are reconciled as follows: Federal statutory income tax rate State income taxes, net of federal tax benefit Tax-exempt interest on municipal obligations Tax-exempt life insurance related income Low income housing and other tax credits Low income housing tax credit amortization Compensation and benefits Non-deductible merger expenses Other Effective Tax Rate Year Ended December 31, 2023 2022 2021 21.0 % 21.0 % 21.0 % 7.9 (0.7) (0.4) (6.6) 5.6 0.3 — (0.1) 27.0 % 7.9 (0.7) (0.4) (3.7) 3.6 (0.2) 0.1 0.3 7.9 (0.5) (0.5) (2.6) 2.2 (0.1) 0.1 0.6 27.9 % 28.1 % The effective tax rate on income was 27.0%, 27.9%, and 28.1% in 2023, 2022, and 2021, respectively. The effective tax rate was greater than the Federal statutory rates of 21% due to the combination of state tax expenses of 7.9%. The impact of Federal and state tax expenses were partially offset by Federal tax-exempt interest income of $5.6 million, $5.5 million, and $3.1 million, respectively, Federal and State tax-exempt income of $3.1 million, $3.2 million, and $3.5 million, respectively, from increase in cash value and gain on death benefit of life insurance, and low income housing tax credits and losses, net of amortization of $1.5 million, $0.2 million, and $0.6 million, respectively. The low-income housing tax credits and the equity compensation excess tax benefits represent direct reductions in tax expense. The items noted above resulted in an effective combined Federal and State income tax rate that differed from the combined Federal and State statutory income tax rate of approximately 29.6% during the three years ended 2023, 2022 and 2021. Financial Condition Restricted Equity Securities Restricted equity securities were $17.2 million at December 31, 2023 and December 31, 2022. The entire balance of restricted equity securities at December 31, 2023 and 2022 represents the Bank’s investment in the Federal Home Loan Bank of San Francisco (“FHLB”). FHLB stock is carried at par and does not have a readily determinable fair value. While technically these are considered equity securities, there is no market for the FHLB stock. Therefore, the shares are considered as restricted investment securities. Management periodically evaluates FHLB stock for other-than-temporary impairment. Management’s determination of whether these investments are impaired is based on its assessment of the ultimate recoverability of cost rather than by recognizing temporary declines in value. The determination of whether a decline affects the ultimate recoverability of cost is influenced by criteria such as (1) the significance of any decline in net assets of the FHLB as compared to the capital stock amount for the FHLB and the length of time this situation has persisted, (2) commitments by the FHLB to make payments required by law or regulation and the level of such payments in relation to the operating performance of the FHLB, (3) the impact of legislative and regulatory changes on institutions and, accordingly, the customer base of the FHLB, and (4) the liquidity position of the FHLB. As a member of the FHLB system, the Bank is required to maintain a minimum level of investment in FHLB stock based on specific percentages of its outstanding mortgages, total assets, or FHLB advances. The Bank may request redemption at par value of any stock in excess of the minimum required investment. Stock redemptions are at the discretion of the FHLB. Loans The Bank concentrates its lending activities in four principal areas: real estate mortgage loans (residential and commercial loans), consumer loans, commercial loans (including agricultural loans), and real estate construction loans. The interest rates charged for the loans made by the Bank vary with the degree of risk, the size and maturity of the loans, the borrower’s relationship with the Bank and prevailing money market rates indicative of the Bank’s cost of funds. The majority of the Bank’s loans are direct loans made to individuals, farmers and local businesses. The Bank relies substantially on local promotional activity and personal contacts by bank officers, directors and employees to compete with other financial institutions. The Bank makes loans to borrowers whose applications include a sound purpose, a viable repayment source and a plan of repayment established at inception and generally backed by a secondary source of repayment. Loan Portfolio Composition 39 TriCo Bancshares 2023 10-K The following table shows the Company’s loan balances, including net deferred loan fees, at the dates indicated: (dollars in thousands) Commercial real estate Consumer Commercial and industrial, excluding PPP SBA PPP loans Construction Agriculture production Leases Total loans Allowance for credit losses Year ended December 31, 2023 2022 2021 4,394,802 $ 4,359,083 $ 3,306,054 1,313,268 1,240,743 1,071,551 585,319 1,136 347,198 144,497 8,250 568,319 1,602 211,560 61,414 7,726 198,208 61,147 222,281 50,811 6,572 $ $ 6,794,470 $ 6,450,447 $ 4,916,624 (121,522) $ (105,680) $ (85,376) The Company did not purchase any loans during 2023. During the year ended 2022, the Company acquired loans totaling $773.3 million in connection with the merger with VRB in March of 2022, inclusive of approximately $68.5 million in loans with credit deterioration. During 2021, the Company purchased pools of SFR 1-4 1st DT (consumer) loans totaling approximately $101.5 million inclusive of loan premiums. As of December 31, 2023 and 2022, the total remaining balances outstanding from these purchases equaled approximately $664.1 million and $804.3 million, respectively. The following table shows the Company’s loan balances, including net deferred loan fees, as a percentage of total loans at the dates indicated: (dollars in thousands) Commercial real estate Consumer Commercial and industrial Construction Agriculture production Leases Total loans Allowance for credit losses Year ended December 31, 2023 2022 2021 64.7 % 19.3 % 8.7 % 5.1 % 2.1 % 0.1 % 100 % 1.79 % 67.6 % 19.2 % 8.8 % 3.3 % 1.0 % 0.1 % 100 % 1.64 % 67.2 % 21.8 % 5.3 % 4.5 % 1.1 % 0.1 % 100 % 1.74 % At December 31, 2023, loans including net deferred loan costs, totaled $6.8 billion which was a 5.3% or $344.0 million increase over the balance at the end of December 31, 2022. At December 31, 2022, loans including net deferred loan costs, totaled $6.5 billion, which was a 31.2% or $1.5 billion increase over the balance at the end of December 31, 2021. From time to time the Bank may be presented with the opportunity to purchase individual or pools of loans in whole or in part outside of a transaction that would be considered a business combination. As of December 31, 2023 and 2022, the outstanding carrying value of purchased loans that were not acquired in a business combination totaled $159.1 million and $167.0 million, respectively. Asset Quality and Nonperforming Assets Nonperforming Assets The following tables set forth the amount of the Bank’s nonperforming assets as of the dates indicated. “Performing non-accrual loans” are loans that may be current for both principal and interest payments, or are less than 90 days past due, but for which payment in full of both 40 TriCo Bancshares 2023 10-K principal and interest is not expected, and are not well secured and in the process of collection: (dollars in thousands) Performing nonaccrual loans Nonperforming nonaccrual loans Total nonaccrual loans Loans 90 days past due and still accruing Total nonperforming loans Foreclosed assets Total nonperforming assets U.S. government, including its agencies and its government- sponsored agencies, guaranteed portion of nonperforming loans Nonperforming assets to total assets Nonperforming loans to total loans Allowance for credit losses to nonperforming loans December 31, 2023 2022 2021 2019 2018 $ 25,380 $ 19,543 $ 27,713 $ 22,896 $ 11,266 6,501 31,881 10 31,891 2,705 34,596 877 0.35 % 0.47 % 381 % $ $ 1,770 21,313 8 21,321 3,439 24,760 225 0.25 % 0.33 % 516 % $ $ 2,637 30,350 — 30,350 2,594 32,944 756 0.38 % 0.61 % 281 % $ $ 3,968 26,864 — 26,864 2,844 29,708 811 0.39 % 0.56 % 342 % $ $ 5,579 16,845 19 16,864 2,541 19,405 992 0.30 % 0.39 % 182 % $ $ Changes in nonperforming assets during the year ended December 31, 2023 The following table shows the activity in the balance of nonperforming assets for the year ended December 31, 2023: (in thousands) Commercial real estate: CRE non-owner occupied CRE owner occupied Multifamily Farmland Total commercial real estate loans Consumer: SFR 1-4 1st DT SFR HELOCs and junior liens Other Total consumer loans Commercial and industrial Construction Agriculture production Leases Total nonperforming loans Foreclosed assets Total nonperforming assets Balance at December 31, 2022 Additions Advances/ Paydowns, net Charge-offs/ Write-downs Transfers to Foreclosed Assets Balance at December 31, 2023 $ 1,739 $ 1,268 $ (983) $ — $ — $ 4,938 125 1,772 8,574 4,220 3,155 76 7,451 3,526 491 1,279 — 15,884 (13,142) (3,636) — 14,843 31,995 943 1,979 345 3,267 9,014 — 4,340 — (125) (2,131) (16,381) (2,247) (1,496) (134) (3,877) (6,148) (424) (3,298) — — — (3,636) — (67) (182) (249) (3,879) — — — 21,321 3,439 48,616 (30,128) 65 (323) (7,764) (631) (50) — — (50) (105) — — (105) — — — — (155) 155 2,024 3,994 — 14,484 20,502 2,811 3,571 105 6,487 2,513 67 2,321 — 31,890 2,705 $ 24,760 $ 48,681 $ (30,451) $ (8,395) $ — $ 34,595 The table above does not include deposit overdraft charge-offs. Nonperforming assets increased by $9.8 million (39.7%) to $34.6 million at December 31, 2023 from $24.8 million at December 31, 2022. The increase in nonperforming assets during 2023 was the result of additions totaling $48.7 million, partially offset by net paydowns, sales or upgrades of nonperforming loans to performing status totaling $30.1 million, and net charge-offs of $7.8 million. 41 TriCo Bancshares 2023 10-K Changes in nonperforming assets during the year ended December 31, 2022 The following table shows the activity in the balance of nonperforming assets for the year ended December 31, 2022: (in thousands) Commercial real estate: CRE non-owner occupied CRE owner occupied Multifamily Farmland Total commercial real estate loans Consumer: SFR 1-4 1st DT SFR HELOCs and junior liens Other Total consumer loans Commercial and industrial Construction Agriculture production Leases Total nonperforming loans Foreclosed assets Total nonperforming assets Balance at December 31, 2021 Additions Advances/ Paydowns, net Charge-offs/ Write-downs Transfers to Foreclosed Assets Balance at December 31, 2022 $ 7,899 $ 2,214 $ (8,374) $ — $ — $ 3,861 — 2,498 8,573 2,005 2,578 164 4,747 3,741 464 5,373 — (3,675) (4,332) (3,139) (19,520) (1,003) (2,827) (35) (3,865) (1,933) (28) (4,094) — — — (294) (294) — (22) (124) (146) (697) — — — (284) — (313) (597) (378) (375) — (753) — — — — 1,739 4,938 125 1,772 8,574 4,220 3,155 76 7,451 3,526 491 1,279 — 22,898 (29,440) (1,137) 203 (708) — (1,350) 1,350 21,321 3,439 $ 32,944 $ 23,101 $ (30,148) $ (1,137) $ — $ 24,760 5,036 4,457 3,020 20,412 3,596 3,801 71 7,468 2,415 55 — — 30,350 2,594 The table above does not include deposit overdraft charge-offs. Nonperforming assets decreased by $8.1 million or 24.8% to $24.8 million at December 31, 2022 from $32.9 million at December 31, 2021. The decrease in nonperforming assets during 2022 was the result of net paydowns, sales or upgrades of nonperforming loans to performing status totaling $29.4 million, which was partially offset by $22.9 million of additions to non-performing loans and net charge-offs of $1.1 million. 42 TriCo Bancshares 2023 10-K Changes in nonperforming assets during the three months ended December 31, 2023 The following table shows the activity in the balance of nonperforming assets for the quarter ended December 31, 2023: (in thousands) Commercial real estate: CRE non-owner occupied CRE owner occupied Multifamily Farmland Total commercial real estate loans Consumer: SFR 1-4 1st DT SFR HELOCs and junior liens Other Total consumer loans Commercial and industrial Construction Agriculture production Leases Total nonperforming loans Foreclosed assets Total nonperforming assets Balance at September 30, 2023 Additions Advances/ Paydowns, net Charge-offs/ Write-downs (1) Transfers to Foreclosed Assets Balance at December 31, 2023 $ 1,105 $ 921 $ (2) $ — $ — $ 3,898 — 11,707 16,710 2,884 3,158 156 6,198 2,950 71 3,870 — 29,799 2,852 247 — 3,009 4,177 53 602 16 671 685 — 1,000 — 6,533 — (73) — (232) (307) (126) (165) (51) (342) (546) (4) (2,549) — (3,748) (197) (28) — — (28) — (24) (16) (40) (576) — — — (644) (50) — — (50) — — — — — — — — (50) 50 2,024 3,994 — 14,484 20,502 2,811 3,571 105 6,487 2,513 67 2,321 — 31,890 2,705 $ 32,651 $ 6,533 $ (3,945) $ (644) $ — $ 34,595 (1) Charge-offs and write-downs exclude deposit overdraft charge-offs. Nonperforming assets increased during the fourth quarter by $1.9 million or 5.8% to $34.6 million at December 31, 2023 compared to $32.7 million at September 30, 2023. The increase in nonperforming assets during the fourth quarter of 2023 was the result of new nonperforming loans of $6.5 million, that were partially offset by net paydowns, sales or upgrades of nonperforming loans to performing status totaling $3.7 million, and net charge-offs of $0.6 million in non-performing loans. 43 TriCo Bancshares 2023 10-K Changes in nonperforming assets during the three months ended December 31, 2022 The following table shows the activity in the balance of nonperforming assets for the quarter ended December 31, 2022: (in thousands) Commercial real estate: CRE non-owner occupied CRE owner occupied Multifamily Farmland Total commercial real estate loans Consumer: SFR 1-4 1st DT SFR HELOCs and junior liens Other Total consumer loans Commercial and industrial Construction Agriculture production Leases Total nonperforming loans Foreclosed assets Total nonperforming assets Balance at September 30, 2022 Additions Advances/ Paydowns, net Charge-offs/ Write-downs (1) Transfers to Foreclosed Assets Balance at December 31, 2022 $ 2,032 $ — $ (293) $ — $ — $ 1,778 132 695 4,637 3,255 3,365 61 6,681 660 120 5,373 — 17,471 3,441 3,213 — 1,772 4,985 1,283 486 23 1,792 3,030 379 — — 10,186 92 (53) (7) (695) (1,048) (99) (674) (7) (780) (114) (8) (4,094) — (6,044) (313) — — — — — (22) (1) (23) (50) — — — (73) — — — — — (219) — — (219) — — — — (219) 219 1,739 4,938 125 1,772 8,574 4,220 3,155 76 7,451 3,526 491 1,279 — 21,321 3,439 $ 20,912 $ 10,278 $ (6,357) $ (73) $ — $ 24,760 (1) Charge-offs and write-downs exclude deposit overdraft charge-offs. Nonperforming assets increased during the fourth quarter of 2022 by $3.8 million or 18.4% to $24.7 million at December 31, 2022 compared to $20.9 million at September 30, 2022. The increase in nonperforming assets during the fourth quarter of 2022 was the result of new nonperforming loans of $10.2 million, that were partially offset by net paydowns, sales or upgrades of nonperforming loans to performing status totaling $6.0 million, and net charge-offs of $0.1 million in non-performing loans. Allowance for Credit Losses - Investment Securities The Company evaluates available for sale debt securities in an unrealized loss position to determine whether the decline in the fair value below the amortized cost basis (impairment) is due to credit-related factors or noncredit-related factors. Any impairment that is not credit related is recognized in other comprehensive income, net of applicable taxes. Credit-related impairment is recognized as an allowance for credit losses on the balance sheet, limited to the amount by which the amortized cost basis exceeds the fair value, with a corresponding adjustment to earnings. Both the allowance for credit losses and the adjustment to net income may be reversed if conditions change. However, if the Company intends to sell an impaired available for sale debt security or more likely than not will be required to sell such a security before recovering its amortized cost basis, the entire impairment amount is recognized in earnings with a corresponding adjustment to the security's amortized cost basis. During the years ended December 31, 2023 and 2022, no allowance for credit losses nor impairment recognized in earnings related to available for sale investment securities was recorded. Allowance for Credit Losses - Held to Maturity Investment Securities In addition to credit losses associated with the Company's loan portfolio, the CECL standard requires that loss estimates be developed for securities classified as held-to-maturity (HTM). As of December 31, 2023, the Company's HTM investment portfolio had a carrying value of approximately $133.5 million and was comprised of $130.8 million in obligations backed by U.S. government agencies and $2.7 million in obligations of states and political subdivisions. As the 97.9% of the HTM portfolio consisted of investment securities where payment performance has an implicit or explicit guarantee from the U.S. government and where no history of credit losses exist, management believes that indicators for zero loss are present and therefore, no loss reserves were recognized in conjunction with the adoption of the CECL standard. Further, management separately evaluated its HTM investment securities from obligations of state and political subdivisions utilizing the historical loss data represented by similar securities over a period of time spanning nearly 50 years. Based on this evaluation, management determined that the expected credit losses associated with these securities is less than significant for financial reporting purposes. Therefore, during the year ended December 31, 2023 as 2022, no allowance for credit losses related to HTM securities was recorded. 44 TriCo Bancshares 2023 10-K Allowance for Credit Losses - Unfunded Commitments The estimated credit losses associated with these unfunded lending commitments is calculated using the same models and methodologies noted above and incorporate utilization assumptions at the estimated time of default. While the provision for credit losses associated with unfunded commitments is included in "provision for (benefit from) credit losses" on the consolidated statement of income, the reserve for unfunded commitments is maintained on the consolidated balance sheet in other liabilities. The Components of the Allowance for Credit Losses The following table sets forth the Bank’s allowance for credit losses related to loans as of the dates indicated (dollars in thousands): (dollars in thousands) Allowance for credit losses: 2023 2022 2021 2020 2019 December 31, Qualitative and forecast factor allowance $ 84,291 $ 70,777 $ 59,855 $ 61,935 $ 12,146 Quantitative (Cohort) model allowance reserves Total allowance for credit losses Allowance for individually evaluated loans Allowance for PCI loan losses Total allowance for credit losses 34,139 118,430 3,092 32,489 103,266 2,414 24,539 84,394 982 28,462 90,397 1,450 n/a n/a n/a n/a 17,529 29,675 935 6 $ 121,522 $ 105,680 $ 85,376 $ 91,847 $ 30,616 Ratio of allowance for credit losses to gross loans 1.79 % 1.64 % 1.74 % 1.93 % 0.71 % Based on the current conditions of the loan portfolio, management believes that the $121.5 million allowance for credit losses at December 31, 2023 is adequate to absorb probable losses inherent in the Bank’s loan portfolio. No assurance can be given, however, that adverse economic conditions or other circumstances will not result in increased losses in the portfolio. The Company utilizes a forecast period of approximately eight quarters and obtains the forecast data from publicly available sources as of the balance sheet date. This forecast data continues to evolve and includes improving shifts in the magnitude of changes for both the unemployment and GDP factors leading up to the balance sheet date. Despite continued declines on a year over year comparative basis, core inflation remains elevated from wage pressures, and higher living costs such as housing, energy and food prices resulting in a rising rate environment for nearly all of 2023. Management notes the rapid intervals of rate increases by the Federal Reserve may create repricing risk for certain borrowers and continued inversion of the yield curve, creates informed expectations of the US potentially entering a recession within 12 months. While projected cuts in interest rates from the Federal Reserve during 2024 may improve this outlook, the uncertainty associated with the extent and timing of these potential reductions has inhibited a material benefit to forecasted reserve levels. As a result, management continues to believe that certain credit weaknesses are likely present in the overall economy and that it is appropriate to cautiously maintain a reserve level that incorporates such risk factors. The following table summarizes the allocation of the allowance for credit losses between loan types: (in thousands) Commercial real estate Consumer Commercial and industrial Construction Agriculture production Leases 2023 2022 2021 2020 2019 $ 68,864 $ 61,381 $ 51,140 $ 53,693 $ 11,995 December 31, 27,453 12,750 8,856 3,589 10 24,639 13,597 5,142 906 15 23,474 25,148 3,862 5,667 1,215 18 4,252 7,540 1,209 5 10,084 4,867 3,388 261 21 Total allowance for credit losses $ 121,522 $ 105,680 $ 85,376 $ 91,847 $ 30,616 45 TriCo Bancshares 2023 10-K The following table summarizes the allocation of the allowance for credit losses between loan types as a percentage of the total allowance for credit losses: Commercial real estate Consumer Commercial and industrial Construction Agriculture production Leases December 31, 2023 2022 2021 2020 2019 56.7 % 22.6 % 10.5 % 7.3 % 3.0 % — % 58.1 % 23.3 % 12.9 % 4.9 % 0.9 % — % 59.9 % 27.5 % 4.5 % 6.6 % 1.4 % 0.1 % 58.5 % 27.4 % 4.6 % 8.2 % 1.3 % — % 39.2 % 32.9 % 15.9 % 11.0 % 0.9 % 0.1 % Total allowance for credit losses 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % The following table summarizes the allocation of the allowance for credit losses between loan types as a percentage of total loans in each of the loan categories listed: Commercial real estate Consumer Commercial and industrial Construction Agriculture production Leases Total allowance for credit losses 2023 2022 2021 2020 2019 December 31, 1.57 % 2.09 % 2.17 % 2.55 % 2.48 % 0.12 % 1.79 % 1.41 % 1.99 % 2.39 % 2.43 % 1.48 % 0.19 % 1.64 % 1.55 % 2.19 % 1.49 % 2.55 % 2.39 % 0.27 % 1.74 % 1.82 % 2.62 % 0.81 % 2.65 % 2.74 % 0.13 % 1.93 % 0.42 % 1.05 % 1.81 % 1.36 % 1.82 % 1.63 % 0.71 % The following tables summarize the net charge-off (recovery) activity in the allowance for credit/loan losses as a percentage of loans for the years indicated (dollars in thousands): Ratios: 2023 2022 2021 2020 2019 Year ended December 31, Net charge-offs (recoveries) during period to average loans outstanding during period Commercial real estate: CRE non-owner occupied CRE owner occupied Multifamily Farmland Consumer: SFR 1-4 1st DT liens SFR HELOCs and junior liens Other Commercial and industrial Construction Agriculture production Leases Provision for (benefit from) credit losses to average loans outstanding during period Allowance for credit losses to loans at year-end — % 0.38 % — % — % (0.02) % (0.01) % 0.50 % 0.60 % — % — % — % 0.35 % 1.79 % — % — % — % 0.01 % — % — % 0.20 % 0.17 % — % — % — % 0.29 % 1.64 % — % (0.11) % — % 0.07 % 0.02 % 0.33 % 0.32 % 0.28 % 0.01 % (0.05) % — % (0.15) % 1.74 % 0.01 % — % — % 0.12 % (0.08) % (0.06) % 0.41 % 0.04 % — % (0.05) % — % 0.92 % 1.93 % (0.09) % 0.13 % — % — % (0.01) % (0.26) % 0.54 % 0.64 % — % (0.02) % — % (0.04) % 0.71 % Generally, losses are triggered by non-performance by the borrower and calculated based on any difference between the current loan amount and the current value of the underlying collateral less any estimated costs associated with the disposition of the collateral. 46 TriCo Bancshares 2023 10-K Foreclosed Assets, Net of Allowance for Losses The following tables detail the components and summarize the activity in foreclosed assets, net of allowances for losses for the years indicated (dollars in thousands): Land & Construction Residential real estate Commercial real estate Total foreclosed assets Land & Construction Residential real estate Commercial real estate Total foreclosed assets Balance at December 31, 2022 Additions Advances/ Capitalized Costs/Other Sales Valuation Adjustments Balance at December 31, 2023 $ 154 $ — $ — $ — $ — $ 1,709 1,576 105 50 — — (127) (79) (14) (669) $ 3,439 $ 155 $ — $ (206) $ (683) $ 154 1,673 878 2,705 Balance at December 31, 2021 Additions Advances/ Capitalized Costs/Other Sales Valuation Adjustments Balance at December 31, 2022 $ 154 $ 313 $ — $ (313) $ — $ 1,257 1,183 751 283 — — (392) — 93 110 $ 2,594 $ 1,347 $ — $ (705) $ 203 $ 154 1,709 1,576 3,439 Deposit Portfolio Composition The following table shows the Company’s deposit balances at the dates indicated: (dollars in thousands) Noninterest-bearing demand Interest-bearing demand Savings Time certificates, over $250,000 Other time certificates Total deposits Year ended December 31, 2023 2022 2021 $ 2,722,689 $ 3,502,095 $ 2,979,882 1,731,814 2,682,068 250,180 447,287 1,718,541 2,884,378 46,350 177,649 1,568,682 2,520,959 44,652 252,984 $ 7,834,038 $ 8,329,013 $ 7,367,159 Total uninsured deposits were estimated to be approximately $2.4 billion and $2.7 billion at December 31, 2023 and 2022, respectively. Long-Term Debt See Note 13 to the consolidated financial statements at Part II, Item 8 of this report for information about the Company’s other borrowings and long-term debt. Junior Subordinated Debt See Note 14 to the consolidated financial statements at Part II, Item 8 of this report for information about the Company’s junior subordinated debt. Equity See Note 16 and Note 26 in the consolidated financial statements at Part II, Item 8 of this report for a discussion of shareholders’ equity and regulatory capital, respectively. Management believes that the Company’s capital is adequate to support anticipated growth, meet the cash dividend requirements of the Company and meet the future risk-based capital requirements of the Bank and the Company. On February 25, 2021 the Board of Directors approved the authorization to repurchase up to 2,000,000 shares of the Company's common stock (the 2021 Repurchase Plan), which approximated 6.7% of the shares outstanding as of the approval date. In connection with approval of the 2021 Repurchase Plan, the Company’s previous repurchase program adopted on November 12, 2019 (the 2019 Repurchase Plan) was terminated. The following table shows the repurchases made by the Company during 2023 under the 2021 Plan: 47 TriCo Bancshares 2023 10-K Period Total number of shares purchased Average price paid per share Maximum number of shares remaining that may yet be purchased under the 2021 Plan January 1, 2023 - December 31, 2023 150,000 $46.50 1,209,802 We repurchased no shares of the Company's common stock during the quarter ended December 31, 2023. Market Risk Management Overview. The goal for managing the assets and liabilities of the Bank is to maximize shareholder value and earnings while maintaining a high quality balance sheet without exposing the Bank to undue interest rate risk. The Board of Directors has overall responsibility for the Company’s interest rate risk management policies. The Bank has an Asset and Liability Management Committee which establishes and monitors guidelines to control the sensitivity of earnings and the fair value of certain assets and liabilities as may be caused by changes in interest rates. The Company does not hold any financial instruments that are not maintained in US dollars and is not party to any contracts that may be settled or repaid in a denomination other than US dollars. Asset/Liability Management. Activities involved in asset/liability management include but are not limited to lending, accepting and placing deposits, investing in securities and issuing debt. Interest rate risk is the primary market risk associated with asset/liability management. Sensitivity of earnings to interest rate changes arises when yields on assets change in a different time period or in a different amount from that of interest costs on liabilities. To mitigate interest rate risk, the structure of the balance sheet is managed with the goal that movements of interest rates on assets and liabilities are correlated and contribute to earnings even in periods of volatile interest rates. The asset/liability management policy sets limits on the acceptable amount of variance in net interest margin and market value of equity under changing interest environments. Market value of equity is the net present value of estimated cash flows from the Bank’s assets, liabilities and off- balance sheet items. The Bank uses simulation models to forecast net interest margin and market value of equity. Simulation of net interest margin and market value of equity under various interest rate scenarios is the primary tool used to measure interest rate risk. The Bank estimated the potential impact of changing interest rates on net interest margin and market value of equity using computer-modeling techniques. A balance sheet forecast is prepared using inputs of actual loan, securities and interest-bearing liability (i.e. deposits/borrowings) positions as the beginning base. In the simulation of net interest income and market value of equity, the forecast balance sheet is processed against various interest rate scenarios. These various interest rate scenarios include a flat rate scenario, which assumes interest rates are unchanged in the future, and rate ramp and or shock scenarios including -300, -200, -100, +100, +200, and +300 basis points around the flat scenario. At December 31, 2023, the overnight Federal funds rate, the rate primarily used in these interest rate shock scenarios, was 5.25%. These scenarios assume that 1) interest rates increase or decrease evenly (in a “ramp” fashion) over a twelve-month period and remain at the new levels beyond twelve months or 2) that interest rates change instantaneously (“shock”). The simulation results shown below assume no changes in the structure of the Company’s balance sheet over the twelve months being measured. The following table summarizes the estimated effect on net interest income and market value of equity to changing interest rates as measured against a flat rate (no interest rate change) instantaneous shock scenario over a twelve month period utilizing the Company's specific mix of interest earning assets and interest bearing liabilities as of December 31, 2023. Interest Rate Risk Simulations: Change in Interest Rates (Basis Points) +300 (shock) +200 (shock) +100 (shock) + 0 (flat) -100 (shock) -200 (shock) -300 (shock) Estimated Change in Net Interest Income (NII) (as % of NII) Estimated Change in Market Value of Equity (MVE) (as % of MVE) (8.9) % (6.0) % (2.8) % — 0.7 % 1.1 % 1.9 % (9.9) % (7.0) % (2.5) % — (2.0) % (7.1) % (17.6) % These simulations indicate that given a “flat” balance sheet size scenario, and if interest-bearing checking, savings and money market interest rates track the general interest rate changes by the rate shock values listed above, the Company’s balance sheet is slightly liability sensitive over a twelve month time horizon for both a rates up and rates down shock scenario. “Asset sensitive” implies that net interest income increases when interest rates rise and decrease when interest rates decrease. “Liability sensitive” implies that net interest income decreases when interest rates rise and increase when interest rates decrease. “Neutral sensitivity” implies that net interest income does not 48 TriCo Bancshares 2023 10-K change when interest rates change. The asset liability management policy limits aggregate market risk, as measured in this fashion, to an acceptable level within the context of risk-return trade-offs. The simulation results noted above do not incorporate any management actions that might moderate the negative consequences of interest rate deviations. In addition, the simulation results noted above contain various assumptions such as a flat balance sheet, and the rate that deposit interest rates change instantaneously as general interest rates change. Therefore, they do not reflect likely actual results, but serve as estimates of interest rate risk. More specifically, the Company's pre-existing low cost of funds, and the presumption that depositors will not accept a negative rate environment, does not allow management the ability to meaningfully adjust the cost of deposits below zero. In addition, many of the Company's loans and investment securities are considered fixed rate interest earning assets. Therefore, in an instantaneous upward rate shock scenario, management would expect the cost of interest bearing liabilities to reprice faster than interest earning assets. As with any method of measuring interest rate risk, certain shortcomings are inherent in the method of analysis presented in the preceding tables. For example, although certain of the Company’s assets and liabilities may have similar maturities or repricing time frames, they may react in different degrees to changes in market interest rates. In addition, the interest rates on certain of the Company’s asset and liability categories may precede, or lag behind, changes in market interest rates. Also, the actual rates of prepayments on loans and investments could vary significantly from the assumptions utilized in deriving the results as presented in the preceding tables. Further, a change in U.S. Treasury rates accompanied by a change in the shape of the treasury yield curve could result in different estimations from those presented herein. Accordingly, the results in the preceding tables should not be relied upon as indicative of actual results in the event of changing market interest rates. Additionally, the resulting estimates of changes in market value of equity are not intended to represent, and should not be construed to represent, estimates of changes in the underlying value of the Company. Interest rate sensitivity is a function of the repricing characteristics of the Company’s portfolio of assets and liabilities. One aspect of these repricing characteristics is the time frame within which the interest-bearing assets and liabilities are subject to change in interest rates either at replacement, repricing or maturity. An analysis of the repricing time frames of interest-bearing assets and liabilities is sometimes called a “gap” analysis because it shows the gap between assets and liabilities repricing or maturing in each of a number of periods. Another aspect of these repricing characteristics is the relative magnitude of the repricing for each category of interest earning asset and interest-bearing liability given various changes in market interest rates. Gap analysis gives no indication of the relative magnitude of repricing given various changes in interest rates. Interest rate sensitivity management focuses on the maturity of assets and liabilities and their repricing during periods of changes in market interest rates. Interest rate sensitivity gaps are measured as the difference between the volumes of assets and liabilities in the Company’s current portfolio that are subject to repricing at various time horizons. The following interest rate sensitivity table shows the Company’s repricing gaps as of December 31, 2023. In this table transaction deposits, which may be repriced at will by the Company, have been included in the less than 3-month category. The inclusion of all of the transaction deposits in the less than 3-month repricing category causes the Company to appear liability sensitive. Because the Company may reprice its transaction deposits at will, transaction deposits may or may not reprice immediately with changes in interest rates. Due to the limitations of gap analysis, as described above, the Company does not actively use gap analysis in managing interest rate risk. Instead, the Company relies on the more sophisticated interest rate risk simulation model described above as its primary tool in measuring and managing interest rate risk. 49 TriCo Bancshares 2023 10-K As of December 31, 2023 (dollars in thousands) Interest-earning assets: Less than 3 months 3 - 6 months 6 - 12 months 1 - 5 years Over 5 years Repricing within: Cash at Federal Reserve and other banks $ 17,075 $ — $ — $ — $ — Securities Loans Total interest-earning assets Interest-bearing liabilities Transaction deposits Time Other borrowings Junior subordinated debt Total interest-bearing liabilities Interest sensitivity gap Cumulative sensitivity gap As a percentage of earning assets: Interest sensitivity gap Cumulative sensitivity gap Liquidity 464,738 1,405,589 1,887,402 100,408 326,268 426,676 110,049 614,799 724,848 685,277 2,446,744 925,526 756,731 3,132,021 1,682,257 4,454,314 — — 260,580 632,582 101,099 218,181 148,218 — — — — — 70,488 — — $ $ $ 5,448,575 (3,561,173) (3,561,173) $ $ $ 218,181 208,495 (3,352,678) $ $ $ 148,218 576,630 (2,776,048) $ $ $ 70,488 3,061,533 285,485 $ $ $ — — — — 1,682,257 1,967,742 (39.4) % (39.4) % 2.3 % (37.1) % 6.4 % (30.7) % 33.9 % 3.2 % 18.6 % 21.8 % Liquidity refers to the Company’s ability to provide funds at an acceptable cost to meet loan demand and deposit withdrawals, as well as contingency plans to meet unanticipated funding needs or loss of funding sources. These objectives can be met from either the asset or liability side of the balance sheet. Asset liquidity sources consist of the repayments and maturities of loans, selling of loans, short-term money market investments, maturities of securities and sales of securities from the available-for-sale portfolio. These activities are generally summarized as investing activities in the Consolidated Statement of Cash Flows. Net cash from investing activities totaled $28.6 million in 2023. Net increases in loan balances from both originations and purchases used approximately $345.9 million of cash, while proceeds from the maturity and sales of investment securities, net of purchases, provided approximately $385.6 million of cash. Liquidity may also be impacted from liabilities through changes in deposits and borrowings outstanding. These activities are included under financing activities in the Consolidated Statement of Cash Flows. In 2023, financing activities used funds totaling $176.0 million, resulting from a decline of $495.0 million in deposits, $39.9 million in dividend payment outflows, and an additional $9.2 million used toward the repurchase of common stock, partially offset by an increase in cash from short term borrowings totaling $368.0 million. The Company's primary sources of remaining available liquidity from available borrowings and in transit items include the following for the periods indicated: (dollars in thousands) Borrowing capacity at correspondent banks and FRB Less: borrowings outstanding Unpledged available-for-sale (AFS) investment securities Cash held or in transit with FRB Total primary liquidity Estimated uninsured deposit balances December 31, 2023 December 31, 2022 $ $ $ 2,921,525 $ (600,000) 1,558,506 51,253 3,931,284 $ 2,815,574 (216,700) 1,990,451 56,910 4,646,235 2,371,000 $ 2,701,000 At December 31, 2023, the Company's primary sources of liquidity represented 50% of total deposits and 166% of estimated total uninsured (excluding collateralized municipal deposits and intercompany balances) deposits, respectively. As secondary sources of liquidity, the Company's held-to-maturity investment securities had a fair value of $125.1 million, including approximately $8.3 million in net unrealized losses. The Company did not utilize any brokered deposits during 2023 or 2022. While these sources are expected to continue to provide significant amounts of funds in the future, their mix, as well as the possible use of other sources, will depend on future economic and market conditions. Liquidity is also provided or used through the results of operating activities. In 2023, operating activities provided cash of $138.9 million, primarily from net income of $117.4 million. In 2022, operating activities provided cash of $162.9 million, primarily from net income of $125.4 million. 50 TriCo Bancshares 2023 10-K Loan demand during 2024 will depend in part on economic and competitive conditions. The Company emphasizes the solicitation of non- interest bearing demand deposits and money market checking deposits, which are the least sensitive to interest rates. The outlook for deposit balances during 2024 is also subject to actions from the Federal Reserve, heightened competition, the success of the Company’s sales efforts, as well as the delivery of superior customer service and market conditions. The Federal Reserve's anticipated decrease in interest rates is expected to relieve some pressure on deposit margin expense, however, the competitive landscape for attracting and retaining deposit balances will continue to remain challenging during 2024. Therefore, due to concerns such as uncertainty in the general economic environment, political uncertainty, and loan demand, levels of customer deposits are not certain and forecasted changes in those balances are subject to significant volatility and uncertainty. Depending on economic conditions, interest rate levels, and a variety of other conditions, proceeds from the sale or maturity of investment securities may be used to fund loans, or reduce short-term borrowings. At December 31, 2023, we believe the Company has sufficient liquidity and capital resources to meet its cash flow obligations over the foreseeable future. The principal cash requirements of the Company are dividends on common stock when declared. The Company is dependent upon the payment of cash dividends by the Bank to service its commitments. Shareholder dividends are expected to continue subject to the Board’s discretion and continuing evaluation of capital levels, earnings, asset quality and other factors. The Company expects that the cash dividends paid by the Bank to the Company will be sufficient to meet this payment schedule. Dividends from the Bank are subject to certain regulatory restrictions. The maturity distribution of certificates of deposit in denominations of $250,000 or more is set forth in the following table. These deposits are generally more rate sensitive than other deposits and, therefore, are more likely to be withdrawn to obtain higher yields elsewhere if available. Certificates of Deposit in Denominations of $250,000 or More (dollars in thousands) Time remaining until maturity: Less than 3 months 3 months to 6 months 6 months to 12 months More than 12 months Total Loan maturities Amounts as of December 31, 2023 2022 $ 7,653 $ 8,284 17,662 12,751 $ 46,350 $ 12,978 6,741 11,451 13,482 44,652 Loan demand also affects the Company’s liquidity position. The following table presents the maturities of loans, net of deferred loan costs, at December 31, 2023: 51 TriCo Bancshares 2023 10-K Loans with predetermined interest rates: Commercial Real Estate Consumer Commercial & Industrial Construction Agricultural Production Leases Within One Year After One But Within Five Years After Five But Within 15 Years After 15 Years Total (dollars in thousands) $ 58,681 $ 415,410 $ 1,177,462 $ 21,758 $ 1,673,311 89,992 57,689 10,691 177 — 54,531 168,275 13,509 8,553 7,726 121,461 478,171 53,708 26,041 10,265 — 8,048 11,054 — — 744,155 287,720 61,295 18,995 7,726 Total loans with predetermined interest rates 217,230 668,004 1,388,937 519,031 2,793,202 Loans with floating interest rates: Commercial Real Estate Consumer Commercial & Industrial Construction Agricultural Production Leases 86,848 30,309 98,532 44,044 32,320 — 513,917 2,023,972 61,035 2,685,772 45,984 151,275 41,890 9,730 — 104,617 315,678 12,572 57,839 360 — 19,822 6,492 9 — 496,588 282,201 150,265 42,419 — Total loans with floating interest rates Total loans 292,053 762,796 2,199,360 403,036 3,657,245 $ 509,283 $ 1,430,800 $ 3,588,297 $ 922,067 $ 6,450,447 Investment maturities The maturity distribution and yields of the investment portfolio at December 31, 2023 is presented in the following tables. The timing of the maturities indicated in the tables below is based on final contractual maturities. Most mortgage-backed securities return principal throughout their contractual lives. As such, the weighted average life of mortgage-backed securities based on outstanding principal balance is usually significantly shorter than the final contractual maturity indicated below. Yields on tax exempt securities are shown on a tax equivalent basis. Within One Year After One Year but Through Five Years After Five Years but Through Ten Years After Ten Years Total Amount Yield Amount Yield Amount Yield Amount Yield Amount Yield (dollars in thousands) Debt Securities Available for Sale Obligations of US government agencies Obligations of states and political subdivisions Corporate bonds Asset backed securities Non-agency collateralized mortgage obligations Total debt securities available for sale Debt Securities Held to Maturity $ 59,837 0.41 % $ 27,560 2.72 % $ 62,241 2.46 % $ 1,072,098 2.17 % $ 1,221,736 2.11 % 718 3.43 % 12,337 1.87 % 63,579 3.22 % 159,741 3.05 % 236,375 3.03 % — — — % — — % 5,601 4.95 % — — % 5,601 4.95 % — % 5,035 3.65 % 214,904 6.76 % 135,344 6.53 % 355,283 6.63 % 21,220 — % — — % 8,008 2.20 % 304,281 2.62 % 333,509 2.74 % $ 81,775 1.54 % $ 44,932 2.58 % $ 354,333 5.16 % $ 1,671,464 2.65 % $ 2,152,504 3.02 % Obligations of US government agencies $ Obligations of states and political subdivisions Total debt securities held to maturity $ — — — — % $ 4,722 2.27 % $ 87,506 2.77 % $ 38,595 2.59 % $ 130,823 2.70 % — % 1,107 4.52 % 1,564 3.59 % — — % 2,671 3.98 % — % $ 5,829 2.70 % $ 89,070 2.79 % $ 38,595 2.59 % $ 133,494 2.73 % 52 TriCo Bancshares 2023 10-K Off-Balance Sheet Items The Bank has certain ongoing commitments under leases. See Note 11 of the financial statements at Part II, Item 8 of this report for the terms. These commitments do not significantly impact operating results. As of December 31, 2023, commitments to extend credit and commitments related to the Bank’s deposit overdraft privilege product were the Bank’s only financial instruments with off-balance sheet risk. The Bank has not entered into any material contracts for financial derivative instruments such as futures, swaps, options, etc. Commitments to extend credit were $2.38 billion and $2.22 billion at December 31, 2023 and 2022, respectively, and represent 35.0% of the total loans outstanding at year-end 2023 versus 34.3% at December 31, 2022. Commitments related to the Bank’s deposit overdraft privilege product totaled $121.5 million and $126.6 million at December 31, 2023 and 2022, respectively. Certain Contractual Obligations The following chart summarizes certain contractual obligations of the Company as of December 31, 2023: (dollars in thousands) Time deposits Total Less than one year 1-3 years 3-5 years More than 5 years $ 697,467 $ 626,979 $ 67,506 $ 2,982 $ Overnight borrowing at FHLB, fixed rate, as of December 31, 2023 of 5.70%, payable on January 2, 2024 Term borrowing at FHLB, fixed rate, as of December 31, 2023 of 4.75%, payable on April 8, 2024 400,000 400,000 200,000 200,000 — — — — — — — — — — — — — — — — — — 13,779 367 3,226 4,319 — 3,316 — — — 20,619 20,619 5,602 4,472 7,615 17,000 25,172 4,408 — 5,902 20,619 20,619 5,602 4,472 7,615 17,000 25,172 28,261 555 14,238 — — — — — — — 5,755 188 1,794 Junior subordinated debt: TriCo Trust I(1) TriCo Trust II(2) North Valley Trust II(3) North Valley Trust III(4) North Valley Trust IV(5) VRB Subordinated - 6%(6) VRB Subordinated - 5%(7) Operating lease obligations Deferred compensation(8) Supplemental retirement plans(8) Total contractual obligations $ 1,441,620 $ 1,234,716 $ 84,878 $ 10,617 $ 111,409 (1) Junior subordinated debt, adjustable rate of three-month SOFR plus 3.05%, callable in whole or in part by the Company on a quarterly basis beginning October 7, 2008, matures October 7, 2033. (2) Junior subordinated debt, adjustable rate of three-month SOFR plus 2.55%, callable in whole or in part by the Company on a quarterly basis beginning July 23, 2009, matures July 23, 2034. (3) Junior subordinated debt, adjustable rate of three-month SOFR plus 3.25%, callable in whole or in part by the Company on a quarterly basis beginning April 24, 2008, matures April 24, 2033. (4) Junior subordinated debt, adjustable rate of three-month SOFR plus 2.80%, callable in whole or in part by the Company on a quarterly basis beginning July 23, 2009, matures July 23, 2034. (5) Junior subordinated debt, adjustable rate of three-month SOFR plus 1.33%, callable in whole or in part by the Company on a quarterly basis beginning March 15, 2011, matures March 15, 2036. (6) Junior subordinated debt, fixed rate of 6% until March 29, 2024, then floating rate of three-month SOFR plus 3.52% until maturity in 2029. Redeemable in whole or in part by the Company beginning March 29, 2024. (7) Junior subordinated debt, fixed rate of 5% until August 27, 2025, then floating rate of 90-day average SOFR plus 4.90% until maturity in 2035. Redeemable in whole or in part by the Company beginning August 27, 2025. (8) These amounts represent known certain payments to participants under the Company’s deferred compensation and supplemental retirement plans. See Note 22 in the financial statements at Part II, Item 8 of this report for additional information related to the Company’s deferred compensation and supplemental retirement plan liabilities. ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK See “Market Risk Management” under Item 7 of this report which is incorporated herein. 53 TriCo Bancshares 2023 10-K ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA INDEX TO FINANCIAL STATEMENTS Consolidated Balance Sheets as of December 31, 2023 and 2022 Consolidated Statements of Income for the years ended December 31, 2023, 2022, and 2021 Consolidated Statements of Comprehensive Income (Loss) for the years ended December 31, 2023, 2022 and 2021 Consolidated Statements of Changes in Shareholders’ Equity for the years ended December 31, 2023, 2022, and 2021 Consolidated Statements of Cash Flows for the years ended December 31, 2023, 2022, and 2021 Notes to Consolidated Financial Statements Management’s Report on Internal Control over Financial Reporting Report of Independent Registered Public Accounting Firm (Moss Adams LLP, San Francisco, California, PCAOB ID: 659) Page 55 56 56 57 58 60 107 108 54 TriCo Bancshares 2023 10-K TRICO BANCSHARES CONSOLIDATED BALANCE SHEETS (In thousands, except share data) Assets: Cash and due from banks Cash at Federal Reserve and other banks Cash and cash equivalents Investment securities: Marketable equity securities Available for sale debt securities, at fair value (amortized cost of $2,384,325 and $2,742,987) Held to maturity debt securities, at amortized cost, net of allowance for credit losses of $0 Restricted equity securities Loans held for sale Loans Allowance for credit losses Total loans, net Premises and equipment, net Cash value of life insurance Accrued interest receivable Goodwill Other intangible assets, net Operating leases, right-of-use Other assets Total assets Liabilities and Shareholders’ Equity: Liabilities: Deposits: Noninterest-bearing demand Interest-bearing Total deposits Accrued interest payable Operating lease liability Other liabilities Other borrowings Junior subordinated debt Total liabilities Commitments and contingencies (Note 15) Shareholders’ equity: Preferred stock, no par value: 1,000,000 shares authorized; zero issued and outstanding at December 31, 2023 and 2022, respectively Common stock, no par value: 50,000,000 shares authorized; issued and outstanding: 33,268,102 and 33,331,513 at December 31, 2023 and 2022, respectively Retained earnings Accumulated other comprehensive loss, net of tax Total shareholders’ equity Total liabilities and shareholders’ equity The accompanying notes are an integral part of these consolidated financial statements. 55 TriCo Bancshares 2023 10-K At December 31, 2023 At December 31, 2022 $ 81,626 $ 17,075 98,701 2,634 2,152,504 133,494 17,250 458 6,794,470 (121,522) 6,672,948 71,347 136,892 36,768 304,442 10,552 26,133 245,966 96,323 10,907 107,230 2,598 2,452,438 160,983 17,250 1,846 6,450,447 (105,680) 6,344,767 72,327 133,742 31,856 304,442 16,670 26,862 257,975 $ 9,910,089 $ 9,930,986 $ 2,722,689 $ 5,111,349 7,834,038 8,445 28,261 145,982 632,582 101,099 3,502,095 4,826,918 8,329,013 1,167 29,004 159,741 264,605 101,040 8,750,407 8,884,570 — — 697,349 615,502 (153,169) 1,159,682 $ 9,910,089 $ 697,448 542,873 (193,905) 1,046,416 9,930,986 TRICO BANCSHARES CONSOLIDATED STATEMENTS OF INCOME (In thousands, except per share data) Interest and dividend income: Loans, including fees Investments: Taxable securities Tax exempt securities Dividends Interest bearing cash at Federal Reserve and other banks Total interest and dividend income Interest expense: Deposits Other borrowings Junior subordinated debt Total interest expense Net interest income Provision for (benefit from) credit losses Net interest income after provision for (benefit from) credit losses Noninterest income: Service charges and fees Commissions on sale of non-deposit investment products Increase in cash value of life insurance Gain on sale of loans Loss on sale of investment securities Other Total noninterest income Noninterest expense: Salaries and related benefits Other Total noninterest expense Income before income taxes Provision for income taxes Net income Earnings per share: Basic Diluted Year ended December 31, 2023 2022 2021 $ 356,710 $ 285,375 $ 242,269 73,924 5,120 1,294 1,306 59,395 5,199 1,137 4,399 29,361 3,568 991 858 438,354 355,505 277,047 55,087 19,712 6,878 81,677 356,677 23,990 332,687 4,689 421 4,419 9,529 345,976 18,470 327,506 3,318 22 2,168 5,508 271,539 (6,775) 278,314 50,088 49,765 43,948 4,517 3,150 1,166 (284) 2,763 61,400 135,795 97,387 233,182 160,905 43,515 3,986 2,858 2,342 — 4,095 63,046 129,852 86,793 216,645 173,907 48,488 3,668 2,775 9,580 — 3,693 63,664 106,351 71,924 178,275 163,703 46,048 $ $ $ 117,390 $ 125,419 $ 117,655 3.53 $ 3.52 $ 3.85 $ 3.83 $ 3.96 3.94 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (In thousands) Net income Other comprehensive income (loss), net of tax: Unrealized gains (losses) on available for sale securities arising during the period, after reclassifications Change in minimum pension liability, after reclassifications Change in joint beneficiary agreement liability Other comprehensive income (loss) Comprehensive income (loss) The accompanying notes are an integral part of these consolidated financial statements. 56 TriCo Bancshares 2023 10-K Year ended December, 31 2023 2022 2021 $ 117,390 $ 125,419 $ 117,655 41,365 (204,376) (13,788) (263) (366) 8,101 1,389 2,602 (113) 40,736 (194,886) (11,299) $ 158,126 $ (69,467) $ 106,356 TRICO BANCSHARES CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (In thousands, except share and per share data) Shares of Common Stock Common Stock Retained Earnings Accumulated Other Comprehensive Income (Loss) Total 29,727,214 $ 530,835 $ 381,999 $ 12,280 $ 925,114 117,655 (11,299) Balance at January 1, 2021 Net income Other comprehensive income (loss) Service condition RSU vesting Market plus service condition RSU vesting Stock options exercised Service condition RSUs released Market plus service condition RSUs released Repurchase of common stock Dividends paid ($1.00 per share) Balance at December 31, 2021 Net income Other comprehensive income (loss) Service condition RSU vesting Market plus service condition RSU vesting Stock options exercised Service condition RSUs released Market plus service condition RSUs released Issuance of common stock Repurchase of common stock Dividends paid ($1.10 per share) Balance at December 31, 2022 Net income Other comprehensive income (loss) Service condition RSU vesting Market plus service condition RSU vesting Service condition RSUs released Market plus service condition RSUs released Stock options exercised Issuance of common stock Repurchase of common stock Dividends paid ($1.20 per share) Balance at December 31, 2023 1,728 910 758 49,675 45,492 19,272 (111,229) (1,987) 29,730,424 532,244 (2,971) (29,724) 466,959 125,419 2,883 986 1,190 63,325 50,076 26,338 4,105,518 (644,168) 173,585 (13,440) 33,331,513 697,448 (13,708) (35,797) 542,873 117,390 2,806 1,319 156 — 81,902 55,928 8,000 — (209,241) (4,380) (4,860) (39,901) 117,655 (11,299) 1,728 910 758 — — (4,958) (29,724) 981 1,000,184 125,419 (194,886) (194,886) 2,883 986 1,190 — — 173,585 (27,148) (35,797) (193,905) 1,046,416 40,736 117,390 40,736 2,806 1,319 — — 156 — (9,240) (39,901) 33,268,102 $ 697,349 $ 615,502 $ (153,169) $ 1,159,682 The accompanying notes are an integral part of these consolidated financial statements. 57 TriCo Bancshares 2023 10-K TRICO BANCSHARES CONSOLIDATED STATEMENTS OF CASH FLOWS (In thousands) Year ended December 31, 2023 2022 2021 $ 117,390 $ 125,419 $ 117,655 Operating activities: Net income Adjustments to reconcile net income to net cash provided by operating activities: Depreciation of premises and equipment, and amortization Amortization of intangible assets Provision for (benefit from) credit losses on loans Amortization of investment securities premium, net Loss on sale of investment securities Originations of loans for resale Proceeds from sale of loans originated for resale Gain on sale of loans Change in market value of mortgage servicing rights Gain on sale of real estate owned, net Deferred income tax expense Gain on transfer of loans to real estate owned Operating lease payments Loss (gain) on disposal of fixed assets Increase in cash value of life insurance Gain on life insurance death benefit (Gain) loss on marketable equity securities Equity compensation vesting expense Change in value of other real estate Amortization of operating lease right of use asset Change in: Interest receivable Interest payable Other assets and liabilities, net Net cash from operating activities Investing activities: Cash acquired in acquisition; net of consideration paid Maturities and principal repayments of securities available for sale Maturities and principal repayments of securities held to maturity Proceeds from sale of available for sale securities Purchases of securities available for sale Loan origination and principal collections, net Loans purchased Proceeds from sale of real estate owned Proceeds from sale of premises and equipment Purchases of premises and equipment Life insurance proceeds Net cash from (used in) investing activities Financing activities: Net change in deposits Net change in other borrowings Repurchase of common stock, net Dividends paid Exercise of stock options, net Net cash (used in) from financing activities Net change in cash and cash equivalents Cash and cash equivalents at beginning of year Cash and cash equivalents at end of year 58 TriCo Bancshares 2023 10-K 6,366 6,118 23,990 312 284 (43,313) 45,467 (1,166) 506 (18) (2,399) (114) (6,378) 23 (3,150) — (36) 4,125 797 6,364 (4,912) 7,278 (18,647) 138,887 — 321,738 27,260 71,024 (34,468) (345,902) (6,423) 224 — (4,886) — 28,567 (494,975) 367,977 (9,240) (39,901) 156 (175,983) (8,529) 107,230 6,012 6,334 18,470 6,641 — (71,600) 74,922 (2,342) (301) (166) (8,022) (316) (5,904) (1,070) (2,858) (309) 340 3,869 113 6,033 (9,170) (287) 17,087 162,895 426,883 267,830 38,399 — (699,035) (739,037) (22,845) 873 6,690 (3,623) 641 6,363 5,464 (6,775) 6,685 — (217,210) 227,938 (9,580) 872 — (936) (233) (4,964) (439) (2,775) (702) 86 2,638 9 5,452 712 (434) 2,381 132,207 — 371,632 83,929 — (1,190,690) (45,812) (108,433) 1,526 2,743 (3,196) 4,490 (723,224) (883,811) (253,625) 214,518 (27,148) (35,797) 1,190 (100,862) (661,191) 768,421 861,225 23,173 (4,344) (29,724) 144 850,474 98,870 669,551 768,421 $ 98,701 $ 107,230 $ Supplemental disclosure of cash flow activity: Cash paid for interest expense Cash paid for income taxes Supplemental disclosure of noncash activities: Unrealized gain (loss) on securities available for sale Loans transferred to foreclosed assets Market value of shares tendered in-lieu of cash to pay for exercise of options and/or related taxes Obligations incurred in conjunction with leased assets Business combination (1) Year ended December 31, 2023 2022 2021 $ $ $ $ $ $ 74,399 $ 45,300 $ 9,290 $ 41,000 $ 5,942 46,300 58,727 $ (290,157) $ (19,575) 155 $ 2,266 $ 4,300 $ 1,349 $ 2,522 $ 6,149 $ 1,052 2,118 2,883 (1) In the year ended 2022, the VRB acquisition included fair value tangible assets acquired of $1.37 billion, liabilities assumed of $1.28 billion, resulting in goodwill of $0.09 billion. The accompanying notes are an integral part of these consolidated financial statements. 59 TriCo Bancshares 2023 10-K TRICO BANCSHARES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Years Ended December 31, 2023, 2022 and 2021 Note 1 – Summary of Significant Accounting Policies Description of Business and Basis of Presentation TriCo Bancshares (the “Company” or “we”) is a California corporation organized to act as a bank holding company for Tri Counties Bank (the “Bank”). The Company and the Bank are headquartered in Chico, California. The Bank is a California-chartered bank that is engaged in the general commercial and retail banking business in 31 California counties. The Company has five capital subsidiary business trusts (collectively, the “Capital Trusts”) that issued trust preferred securities, including two organized by the Company and three obtained through acquisition. The consolidated financial statements are prepared in accordance with accounting policies generally accepted in the United States of America and general practices in the banking industry. All adjustments necessary for a fair presentation of these consolidated financial statements have been included and are of a normal and recurring nature. The financial statements include the accounts of the Company and its wholly-owned subsidiary. All inter-company accounts and transactions have been eliminated in consolidation. For financial reporting purposes, the Company’s investments in the Capital Trusts of $1.8 million are accounted for under the equity method and, accordingly, are included in other assets on the consolidated balance sheets. The subordinated debentures issued and guaranteed by the Company and held by the Capital Trusts are reflected as debt on the Company’s consolidated balance sheets. Use of Estimates in the Preparation of Financial Statements The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. Segment and Significant Group Concentration of Credit Risk The Company grants agribusiness, commercial, consumer, and residential loans to customers located throughout California. The Company has a diversified loan portfolio within the business segments located in this geographical area. The Company currently classifies all its operation into one business segment that it denotes as community banking. Geographical Descriptions For the purpose of describing the geographical location of the Company’s operations, the Company has defined northern California as that area of California north of, and including, Stockton to the east and San Jose to the west; central California as that area of the state south of Stockton and San Jose, to and including, Bakersfield to the east and San Luis Obispo to the west; and southern California as that area of the state south of Bakersfield and San Luis Obispo. Business Combinations The Company accounts for acquisitions of businesses using the acquisition method of accounting. Under the acquisition method, assets acquired and liabilities assumed are recorded at their estimated fair values at the date of acquisition. Management utilizes various valuation techniques including discounted cash flow analyses to determine these fair values. Any excess of the purchase price over amounts allocated to the acquired assets, including identifiable intangible assets, and liabilities assumed is recorded as goodwill. Cash and Cash Equivalents For purposes of the consolidated statements of cash flows, cash and cash equivalents include cash on hand, amounts due from banks, and federal funds sold. Net cash flows are reported for loan and deposit transactions and other borrowings. Non-Marketable and Other Equity Securities Non-marketable and other equity securities include qualified public welfare investments and venture capital/private equity funds. Our accounting for investments in non-marketable and other equity securities depends on several factors, including the level of ownership, power to control and the legal structure of the subsidiary making the investment. We base our accounting for such securities on: (i) fair value accounting, (ii) measurement alternative for other investments without a readily determinable fair value, and (iii) equity method accounting. During the twelve months ended December 31, 2023 and 2022, the Company recognized an insignificant amount of earnings and losses in the consolidated statements of net income related to changes in the fair value of non-marketable and other equity securities. 60 TriCo Bancshares 2023 10-K Debt Securities The Company classifies its debt securities into one of three categories: trading, available for sale or held to maturity. Trading securities are bought and held principally for the purpose of selling in the near term and changes in the value of these securities are recorded through earnings. Held to maturity securities are those securities which the Company has the ability and intent to hold until maturity. These securities are carried at cost adjusted for amortization of premium and accretion of discount, computed by the effective interest method over their contractual lives. All other securities not included in trading or held to maturity are classified as available for sale. AFS securities are recorded at fair value. Unrealized gains and losses, net of the related tax effect, on available for sale securities are reported as a separate component of other accumulated comprehensive income in shareholders’ equity until realized. Discounts are amortized or accreted over the expected life of the related investment security as an adjustment to yield using the effective interest method. Premiums on callable debt securities are generally amortized to the earliest call date of the security with the exception of mortgage backed securities, where estimated prepayments, if any, are considered. Dividend and interest income are recognized when earned. Realized gains and losses are derived from the amortized cost of the security sold. The Company did not have any debt securities classified as trading during the three year period ended December 31, 2023. The Company has made a policy election to exclude accrued interest from the amortized cost basis of debt securities and report accrued interest separately in the consolidated balance sheets. A debt security is placed on nonaccrual status at the time any principal or interest payments become more than 90 days delinquent or if full collection of interest or principal becomes uncertain. Accrued interest for a security placed on nonaccrual is reversed against interest income. There was no accrued interest related to debt securities reversed against interest income for the years ended December 31, 2023, 2022 and 2021. The Company evaluates available for sale debt securities in an unrealized loss position to determine whether the decline in the fair value below the amortized cost basis (impairment) is due to credit-related factors or noncredit-related factors. Any impairment that is not credit related is recognized in other comprehensive income, net of applicable taxes. Credit-related impairment is recognized as an allowance for credit losses on the balance sheet, limited to the amount by which the amortized cost basis exceeds the fair value, with a corresponding adjustment to earnings. Both the allowance for credit losses and the adjustment to net income may be reversed if conditions change. However, if the Company intends to sell an impaired available for sale debt security or more likely than not will be required to sell such a security before recovering its amortized cost basis, the entire impairment amount is recognized in earnings with a corresponding adjustment to the security's amortized cost basis. In evaluating available for sale debt securities in unrealized loss positions for impairment and the criteria regarding its intent or requirement to sell such securities, the Company considers the extent to which fair value is less than amortized cost, whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, and the results of reviews of the issuers' financial condition, among other factors. Changes in the allowance for credit losses are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the ACL when management believes the uncollectability of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met. No security credit losses were recognized during the years ended December 31, 2023, 2022 or 2021. For HTM debt securities, the Company measures expected credit losses on held-to-maturity debt securities on a collective basis by major security type, then further disaggregated by sector and bond rating. Accrued interest receivable on held-to-maturity (HTM) debt securities is excluded from the estimate of credit losses. The estimate of expected credit losses considers historical credit loss information that is adjusted for current condition and reasonable and supportable forecasts based on current and expected changes in credit ratings and default rates. Based on the implied guarantees of the U. S. Government or its agencies related to certain of these HTM investment securities, and the absence of any historical or expected losses, substantially all qualify for a zero loss assumption. Management has separately evaluated its HTM investment securities from obligations of state and political subdivisions utilizing the historical loss data represented by similar securities over a period of time spanning nearly 50 years. As a result of this evaluation, management determined that the expected credit losses associated with these securities is not significant for financial reporting purposes and therefore, no allowance for credit losses has been recognized during the years ended December 31, 2023, 2022 or 2021. Restricted Equity Securities Restricted equity securities represent the Company’s investment in the stock of the Federal Home Loan Bank of San Francisco (“FHLB”) and are carried at par value, which reasonably approximates its fair value. While technically these are considered equity securities, there is no market for the FHLB stock. Therefore, the shares are considered as restricted investment securities. Management periodically evaluates FHLB stock for other-than-temporary impairment. Management’s determination of whether these investments are impaired is based on its assessment of the ultimate recoverability of cost rather than by recognizing temporary declines in value. The determination of whether a decline affects the ultimate recoverability of cost is influenced by criteria such as (1) the significance of any decline in net assets of the FHLB as compared to the capital stock amount for the FHLB and the length of time this situation has persisted, (2) commitments by the FHLB to make payments required by law or regulation and the level of such payments in relation to the operating performance of the FHLB, (3) the impact of legislative and regulatory changes on institutions and, accordingly, the customer base of the FHLB, and (4) the liquidity position of the FHLB. As a member of the FHLB system, the Bank is required to maintain a minimum level of investment in FHLB stock based on specific percentages of its outstanding mortgages, total assets, or FHLB advances. The Bank may request redemption at par value of any stock in excess of the minimum required investment. Stock redemptions are at the discretion of the FHLB. Both cash and stock dividends are reported as income when received. 61 TriCo Bancshares 2023 10-K Loans Held for Sale Loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or fair value, as determined by aggregate outstanding commitments from investors of current investor yield requirements. Net unrealized losses are recognized through a valuation allowance by charges to non-interest income. Mortgage loans held for sale are generally sold with the mortgage servicing rights retained by the Company. Gains or losses on the sale of loans that are held for sale are recognized at the time of the sale and determined by the difference between net sale proceeds and the net book value of the loans less the estimated fair value of any retained mortgage servicing rights. Loans Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at the principal amount outstanding, net of deferred loan fees and costs. Loan origination and commitment fees and certain direct loan origination costs are deferred, and the net amount is amortized as an adjustment to the related loan’s yield over the actual life of the loan. Loans on which the accrual of interest has been discontinued are designated as nonaccrual loans. Loans are placed in nonaccrual status when reasonable doubt exists as to the full, timely collection of interest or principal, or a loan becomes contractually past due by 90 days or more with respect to interest or principal and is not well secured and in the process of collection. When a loan is placed on nonaccrual status, all interest previously accrued but not collected is reversed. Income on such loans is then recognized only to the extent that cash is received and where the future collection of principal is considered probable. Interest accruals are resumed on such loans only when they are brought fully current with respect to interest and principal and when, in the judgment of Management, the loan is estimated to be fully collectible as to both principal and interest. Accrued interest receivable is not included in the calculation of the allowance for credit losses. Allowance for Credit Losses - Loans The Company measures credit losses under ASU 2016-03 Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which replaced the incurred loss methodology, and is referred to as the current expected credit loss (CECL) methodology. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized costs, including loan receivables and held-to-maturity debt securities. The allowance for credit losses (ACL) is a valuation account that is deducted from the loan's amortized cost basis to present the net amount expected to be collected on the loans. Loans are charged off against the allowance when management believes the recorded loan balance is confirmed as uncollectible. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. Regardless of the determination that a charge-off is appropriate for financial accounting purposes, the Company manages its loan portfolio by continually monitoring, where possible, a borrower's ability to pay through the collection of financial information, delinquency status, borrower discussion and the encouragement to repay in accordance with the original contract or modified terms, if appropriate. Management estimates the allowance balance using relevant information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. The allowance for credit losses is measured on a collective (pool) basis when similar risk characteristics exist. Historical credit loss experience provides the basis for the estimation of expected credit losses, which captures loan balances as of a point in time to form a cohort, then tracks the respective losses generated by that cohort of loans over the remaining life. The Company identified and accumulated loan cohort historical loss data beginning with the fourth quarter of 2008 and through the current period. In situations where the Company's actual loss history was not statistically relevant, the loss history of peers, defined as financial institutions with assets greater than three billion and less than ten billion, were utilized to create a minimum loss rate. Adjustments to historical loss information are made for differences in relevant current loan-specific risk characteristics, such as historical timing of losses relative to the loan origination. In its loss forecasting framework, the Company incorporates forward-looking information through the use of macroeconomic scenarios applied over the forecasted life of the assets. These macroeconomic scenarios incorporate variables that have historically been key drivers of increases and decreases in credit losses. These variables include, but are not limited to changes in environmental conditions, such as California unemployment rates, household debt levels, and the pace of change in corporate bond yields. The Company also considers macroeconomic forecasts to estimate the ACL. A loan is considered to be collateral dependent when repayment is expected to be provided substantially through the operation or sale of the collateral. The ACL on collateral dependent loans is measured using the fair value of the underlying collateral, adjusted for costs to sell when applicable, less the amortized cost basis of the financial asset. If the value of underlying collateral is determined to be less than the recorded amount of the loan, a charge-off will be taken. PCD assets are assets acquired at a discount that is due, in part, to credit quality deterioration since origination which may be determined through observation of missed payments, downgrade in risk rating, deterioration of a borrower's financial trends or other observable factors including subjectivity utilized by management. PCD assets are initially recorded at fair value, by taking the sum of the present value of expected future cash flows and an allowance for credit losses, at acquisition. The allowance for credit losses for PCD assets is recorded through a gross-up of reserves on the consolidated balance sheets, while the allowance for acquired non-PCD assets, such as loans, is recorded through the provision for credit losses on the consolidated statements of income, consistent with originated loans. Subsequent to acquisition, the allowance for credit losses for PCD loans will generally follow the same forward-looking estimation, provision, and charge-off process as non-PCD acquired and originated loans. 62 TriCo Bancshares 2023 10-K The Company has identified the following portfolio segments to evaluate and measure the allowance for credit loss: Commercial real estate: • • Commercial real estate - Non-owner occupied: These commercial properties typically consist of buildings which are leased to others for their use and rely on rents as the primary source of repayment. Property types are predominantly office, retail, or light industrial but the portfolio also has some special use properties. As such, the risk of loss associated with these properties is primarily driven by general economic changes or changes in regional economies and the impact of such on a tenant’s ability to pay. Ultimately this can affect occupancy, rental rates, or both. Additional risk of loss can come from new construction resulting in oversupply, the costs to hold or operate the property, or changes in interest rates. The terms on these loans at origination typically have maturities from five to ten years with amortization periods from fifteen to thirty years. Commercial real estate - Owner occupied: These credits are primarily susceptible to changes in the financial condition of the business operated by the property owner. This may be driven by changes in, among other things, industry challenges, factors unique to the operating geography of the borrower, change in the individual fortunes of the business owner, general economic conditions and changes in business cycles. When default is driven by issues related specifically to the business owner, collateral values tend to provide better repayment support and may result in little or no loss. Alternatively, when default is driven more by general economic conditions, the underlying collateral may have devalued more and thus result in larger losses in the event of default. The terms on these loans at origination typically have maturities from five to ten years with amortization periods from fifteen to thirty years. • Multifamily: These commercial properties are generally comprised of more than four rentable units, such as apartment buildings, with each unit intended to be occupied as the primary residence for one or more persons. Multifamily properties are also subject to changes in general or regional economic conditions, such as unemployment, ultimately resulting in increased vacancy rates or reduced rents or both. In addition, new construction can create an oversupply condition and market competition resulting in increased vacancy, reduced market rents, or both. Due to the nature of their use and the greater likelihood of tenant turnover, the management of these properties is more intensive and therefore is more critical to the preclusion of loss. • Farmland: While the Company has few loans that were originated for the purpose of the acquisition of these commercial properties, loans secured by farmland represent unique risks that are associated with the operation of an agricultural businesses. The valuation of farmland can vary greatly over time based on the property's access to resources including but not limited to water, crop prices, foreign exchange rates, government regulation or restrictions, and the nature of ongoing capital investment needed to maintain the quality of the property. Loans secured by farmland typically represent less risk to the Company than other agriculture loans as the real estate typically provides greater support in the event of default or need for longer term repayment. Consumer loans: • • • SFR 1-4 1st DT Liens: The most significant drivers of potential loss within the Company's residential real estate portfolio relate general, regional, or individual changes in economic conditions and their effect on employment and borrowers cash flow. Risk in this portfolio is best measured by changes in borrower credit score and loan-to-value. Loss estimates are based on the general movement in credit score, economic outlook and its effects on employment and the value of homes and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate. SFR HELOCs and Junior Liens: Similar to residential real estate term loans, HELOCs and junior liens performance is also primarily driven by borrower cash flows based on employment status. However, HELOCs carry additional risks associated with the fact that most of these loans are secured by a deed of trust in a position that is junior to the primary lien holder. Furthermore, the risk that as the borrower's financial strength deteriorates, the outstanding balance on these credit lines may increase as they may only be canceled by the Company if certain limited criteria are met. In addition to the allowance for credit losses maintained as a percent of the outstanding loan balance, the Company maintains additional reserves for the unfunded portion of the HELOC. Other: The majority of these consumer loans are secured by automobiles, with the remainder primarily unsecured revolving debt (credit cards). These loans are susceptible to three primary risks; non-payment due to income loss, over-extension of credit and, when the borrower is unable to pay, shortfall in collateral value, if any. Typically, non-payment is due to loss of job and will follow general economic trends in the marketplace driven primarily by rises in the unemployment rate. Loss of collateral value can be due to market demand shifts, damage to collateral itself or a combination of those factors. Credit card loans are unsecured and while collection efforts are pursued in the event of default, there is typically limited opportunity for recovery. Loss estimates are based on the general movement in credit score, economic outlook and its effects on employment and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate. Commercial and industrial: • Repayment of these loans is primarily based on the cash flow of the borrower, and secondarily on the underlying collateral provided by the borrower. A borrower's cash flow may be unpredictable, and collateral securing these loans may fluctuate in value. Most often, collateral includes accounts receivable, inventory, or equipment. Collateral securing these loans may depreciate over time, may be difficult to appraise, may be illiquid and may fluctuate in value based on the success of the business. Actual and forecast changes in gross domestic product are believed to be corollary to losses associated with these credits. Construction: • While secured by real estate, construction loans represent a greater level of risk than term real estate loans due to the nature of the additional risks associated with the not only the completion of construction within an estimated time period and budget, but also the 63 TriCo Bancshares 2023 10-K need to either sell the building or reach a level of stabilized occupancy sufficient to generate the cash flows necessary to support debt service and operating costs. The Company seeks to mitigate the additional risks associated with construction lending by requiring borrowers to comply with lower loan to value ratios and additional covenants as well as strong tertiary support of guarantors. The loss forecasting model applies the historical rate of loss for similar loans over the expected life of the asset as adjusted for macroeconomic factors. Agriculture production: • Repayment of agricultural loans is dependent upon successful operation of the agricultural business, which is greatly impacted by factors outside the control of the borrower. These factors include adverse weather conditions, including access to water, that may impact crop yields, loss of livestock due to disease or other factors, declines in market prices for agriculture products, changes in foreign exchange, and the impact of government regulations. In addition, many farms are dependent on a limited number of key individuals whose injury or death may significantly affect the successful operation of the business. Consequently, agricultural production loans may involve a greater degree of risk than other types of loans. Leases: • The loss forecasting model applies the historical rate of loss for similar loans over the expected life of the asset. Leases typically represent an elevated level of credit risk as compared to loans secured by real estate as the collateral for leases is often subject to a more rapid rate of depreciation or depletion. The ultimate severity of loss is impacted by the type of collateral securing the exposure, the size of the exposure, the borrower’s industry sector, any guarantors and the geographic market. Assumptions of expected loss are conditioned to the economic outlook and the other variables discussed above. Unfunded commitments: • The estimated credit losses associated with these unfunded lending commitments is calculated using the same models and methodologies noted above and incorporate utilization assumptions at time of default. The reserve for unfunded commitments is maintained on the consolidated balance sheet in other liabilities. Real Estate Owned Real estate owned (REO) includes assets acquired through, or in lieu of, loan foreclosure. REO is held for sale and are initially recorded at fair value less estimated costs to sell at the date of acquisition, establishing a new cost basis. Physical possession of residential real estate property collateralizing a consumer mortgage loan occurs when legal title is obtained upon completion of foreclosure or when the borrower conveys all interest in the property to satisfy the loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Any write-downs based on the asset’s fair value less costs to sell at the date of acquisition are charged to the allowance for loan and lease losses. Any recoveries based on the asset’s fair value less estimated costs to sell in excess of the recorded value of the loan at the date of acquisition are recorded to the allowance for loan and lease losses. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. If fair value declines subsequent to foreclosure, a valuation allowance is recorded through expense. Operating costs after acquisition are expensed. Revenue and expenses from operations and changes in the valuation allowance are included in other non-interest expense, along with the gain or loss on sale of REO. Premises and Equipment Land is carried at cost. Land improvements, buildings and equipment, including those acquired under capital lease, are stated at cost less accumulated depreciation and amortization. Depreciation and amortization expenses are computed using the straight-line method over the shorter of the estimated useful lives of the related assets or lease terms. Asset lives range from 3-10 years for furniture and equipment and 15-40 years for land improvements and buildings. Company Owned Life Insurance The Company has purchased life insurance policies on certain key executives. Company owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement. As a result of current tax law and the nature of these policies, the Bank records any increase in cash value of these policies as nontaxable non-interest income. If the Bank decided to surrender any of the policies prior to the death of the insured, such surrender may result in a tax expense related to the life-to-date cumulative increase in cash value of the policy. If the Bank retains such policies until the death of the insured, the Bank would receive nontaxable proceeds from the insurance company equal to the death benefit of the policies. The Bank has entered into Joint Beneficiary Agreements (JBAs) with certain of the insured that provide some level of sharing of the death benefit, less the cash surrender value, among the Bank and the beneficiaries of the insured upon the receipt of death benefits. Goodwill, Other Intangible and Long-Lived Assets Goodwill represents the excess of costs over fair value of net assets of businesses acquired from a business combination. The Company has an identifiable intangible asset consisting of core deposit intangibles (“CDI”). CDI are amortized over their respective estimated useful lives and reviewed periodically for impairment. Goodwill and other intangible assets acquired in a business combination and determined to have an indefinite useful life are not amortized, but instead tested for impairment at least annually. Other intangible assets with estimable useful lives are amortized over their respective estimated useful lives to their estimated residual values, and reviewed periodically for impairment. 64 TriCo Bancshares 2023 10-K As of September 30 of each year, goodwill is tested for impairment, and is tested for impairment more frequently if events and circumstances indicate that the asset might be impaired. An impairment loss is recognized to the extent that the carrying amount exceeds the asset’s fair value. Long-lived assets, such as premises and equipment, and purchased intangibles subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized by the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of would be separately presented in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and are no longer depreciated. The assets and liabilities of a disposed group classified as held for sale would be presented separately in the appropriate asset and liability sections of the consolidated balance sheet. Mortgage Servicing Rights Mortgage servicing rights (“MSR”) represent the Company’s right to a future stream of cash flows based upon the contractual servicing fee associated with servicing mortgage loans. Our MSR arise from residential and commercial mortgage loans that we originate and sell, but retain the right to service the loans. The net gain from the retention of the servicing right is included in gain on sale of loans in non-interest income when the loan is sold. Fair value is based on market prices for comparable mortgage servicing contracts, when available, or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. The valuation model incorporates assumptions that market participants would use in estimating future net servicing income, such as the cost to service, the discount rate, the custodial earnings rate, an inflation rate, ancillary income, prepayment speeds and default rates and losses. Servicing fees, when earned, and changes in fair value of the MSR, are recorded in non-interest income. The Company accounts for MSR at fair value. The determination of fair value of our MSR requires management judgment because they are not actively traded. The determination of fair value for MSR requires valuation processes which combine the use of discounted cash flow models and extensive analysis of current market data to arrive at an estimate of fair value. The cash flow and prepayment assumptions used in our discounted cash flow model are based on empirical data drawn from the historical performance of our MSR, which we believe are consistent with assumptions used by market participants valuing similar MSR, and from data obtained on the performance of similar MSR. The key assumptions used in the valuation of MSR include mortgage prepayment speeds and the discount rate. These variables can, and generally will, change from quarter to quarter as market conditions and projected interest rates change. The key risks inherent with MSR are prepayment speed and changes in interest rates. Leases The Company records a right-of-use asset (“ROUA”) on the consolidated balance sheets for those leases that convey rights to control use of identified assets for a period of time in exchange for consideration. The Company is also required to record a lease liability on the consolidated balance sheets for the present value of future payment commitments. Substantially all of the Company’s leases are comprised of operating leases in which the Company is lessee of real estate property for branches, ATM locations, and general administration and operations. The Company has elected not to include short-term leases (i.e. leases with initial terms of twelve months or less) within the ROUA and lease liability. Known or determinable adjustments to the required minimum future lease payments are included in the calculation of the Company’s ROUA and lease liability. Adjustments to the required minimum future lease payments that are variable and will not be determinable until a future period, such as changes in the consumer price index, are included as variable lease costs. Additionally, expected variable payments for common area maintenance, taxes and insurance are not unknown and not determinable at lease commencement and therefore, are not included in the determination of the Company’s ROUA or lease liability. The value of the ROUA and lease liability is impacted by the amount of the periodic payment required, length of the lease term, and the discount rate used to calculate the present value of the minimum lease payments. The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. The Company uses the rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception, on a collateralized basis, over a similar term. Off-Balance Sheet Credit Related Financial Instruments In the ordinary course of business, the Company has entered into commitments to extend credit, including commitments under credit card arrangements, commercial letters of credit, and standby letters of credit. Such financial instruments are recorded when they are funded. Low Income Housing Tax Credits The Company accounts for low income housing tax credits and the related qualified affordable housing projects using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). Upon entering into a qualified affordable housing project, the Company records, in other liabilities, the entire amount that it has agreed to invest in the project, and an equal amount, in other assets, representing its investment in the project. As the Company disburses cash to satisfy its investment obligation, other liabilities are reduced. Over time, as the tax credits and other tax benefits of the project are realized by the Company, the investment recorded in other assets is reduced using the proportional amortization method. Income Taxes 65 TriCo Bancshares 2023 10-K The Company’s accounting for income taxes is based on an asset and liability approach. The Company recognizes the amount of taxes payable or refundable for the current year, and deferred tax assets and liabilities for the future tax consequences that have been recognized in its financial statements or tax returns. The measurement of tax assets and liabilities is based on the provisions of enacted tax laws. A valuation allowance, if needed, reduces deferred tax assets to the expected amount most likely to be realized. Realization of deferred tax assets is dependent upon the generation of a sufficient level of future taxable income and recoverable taxes paid in prior years. Although realization is not assured, management believes it is more likely than not that all of the deferred tax assets will be realized. A tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded. Interest and/or penalties related to income taxes are reported as a component of non-interest income. Share-Based Compensation Compensation cost is recognized for stock options and restricted stock awards issued to employees and directors, based on the fair value of the awards at the date of grant. The estimate of the fair value of stock options and performance based restricted awards are based on a Black-Scholes or Monte Carlo model, respectively, while the market price of the common stock at the date of grant is used for time based restricted awards. Compensation cost is recognized over the required service period, generally defined as the vesting or measurement period. The Company’s accounting policy is to recognize forfeitures as they occur. Earnings per Share Basic earnings per share represents income available to common shareholders divided by the weighted-average number of common shares outstanding during the period. There are no unvested share-based payment awards that contain rights to nonforfeitable dividends (participating securities). Diluted earnings per share reflects additional common shares that would have been outstanding if dilutive potential common shares had been issued, as well as any adjustments to income that would result from assumed issuance. Potential common shares that may be issued by the Company relate solely from outstanding stock options and restricted stock units, and are determined using the treasury stock method. Revenue Recognition The Company records revenue from contracts with customers in accordance with Accounting Standards Codification Topic 606, “Revenue from Contracts with Customers” (“Topic 606”). Under Topic 606, the Company must identify the contract with a customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract, and recognize revenue when (or as) the Company satisfies a performance obligation. Most of our revenue-generating transactions are not subject to Topic 606, including revenue generated from financial instruments, such as our loans and investment securities. In addition, certain non-interest income streams such as fees associated with mortgage servicing rights, financial guarantees, derivatives, and certain credit card fees are also not in scope of the new guidance. The Company’s non-interest revenue streams are largely based on transactional activity, or standard month-end revenue accruals such as asset management fees based on month-end market values. Consideration is often received immediately or shortly after the Company satisfies its performance obligation and revenue is recognized. The Company does not typically enter into long-term revenue contracts with customers, and therefore, does not experience significant contract balances. As of December 31, 2023 and December 31, 2022, the Company did not have any significant contract balances. The Company has evaluated the nature of its revenue streams and determined that further disaggregation of revenue into more granular categories beyond what is presented in Note 18 was not necessary. The following are descriptions of revenues within the scope of ASC 606. Deposit service charges The Company earns fees from its deposit customers for account maintenance, transaction-based and overdraft services. Account maintenance fees consist primarily of account fees and analyzed account fees charged on deposit accounts on a monthly basis. The performance obligation is satisfied and the fees are recognized on a monthly basis as the service period is completed. Transaction-based fees on deposit accounts are charged to deposit customers for specific services provided to the customer, such as non-sufficient funds fees, overdraft fees, and wire fees. The performance obligation is completed as the transaction occurs and the fees are recognized at the time each specific service is provided to the customer. Debit and ATM interchange fees Debit and ATM interchange income represent fees earned when a debit card issued by the Company is used. The Company earns interchange fees from debit cardholder transactions through the Visa payment network. Interchange fees from cardholder transactions represent a percentage of the underlying transaction value and are recognized daily, concurrently with the transaction processing services provided to the cardholder. The performance obligation is satisfied and the fees are earned when the cost of the transaction is charged to the cardholders’ debit card. Certain expenses directly associated with the credit and debit card are recorded on a net basis with the interchange income. Commission on sale of non-deposit investment products Commissions on sale of non-deposit investment products consist of fees earned from advisory asset management, trade execution and administrative fees from investments. Advisory asset management fees are variable, since they are based on the underlying portfolio value, 66 TriCo Bancshares 2023 10-K which is subject to market conditions and asset flows. Advisory asset management fees are recognized quarterly and are based on the portfolio values at the end of each quarter. Brokerage accounts are charged commissions at the time of a transaction and the commission schedule is based upon the type of security and quantity. In addition, revenues are earned from selling insurance and annuity policies. The amount of revenue earned is determined by the value and type of each instrument sold and is recognized at the time the policy or contract is written. Merchant fee income Merchant fee income represents fees earned by the Company for card payment services provided to its merchant customers. The Company outsources these services to a third party to provide card payment services to these merchants. The third party provider passes the payments made by the merchants through to the Company. The Company, in turn, pays the third party provider for the services it provides to the merchants. These payments to the third party provider are recorded as expenses as a net reduction against fee income. In addition, a portion of the payment received represents interchange fees which are passed through to the card issuing bank. Income is primarily earned based on the dollar volume and number of transactions processed. The performance obligation is satisfied and the related fee is earned when each payment is accepted by the processing network. Gain/loss on other real estate owned, net The Company records a gain or loss from the sale of other real estate owned when control of the property transfers to the buyer, which generally occurs at the time of an executed deed of trust. When the Company finances the sale of other real estate owned to the buyer, the Company assesses whether the buyer is committed to perform their obligations under the contract and whether collectability of the transaction price is probable. Once these criteria are met, the other real estate owned asset is derecognized and the gain or loss on sale is recorded upon the transfer of control of the property to the buyer. In determining the gain or loss on sale, the Company adjusts the transaction price and related gain or loss on sale if a significant financing component is present. Gains or losses from transactions associated with other real estate owned are recorded as a component of non-interest expense. Reclassifications Certain amounts reported in previous consolidated financial statements have been reclassified and recalculated to conform to the presentation in this report. These reclassifications did not affect previously reported amounts of net income, total assets or total shareholders’ equity. Accounting Standards Adopted in 2023 In March 2022, the FASB issued ASU 2022-02, Financial Instruments — Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures. The amendments in this Update eliminated the TDR recognition and measurement guidance and, instead, required that an entity evaluate (consistent with the accounting for other loan modifications) whether the modification represents a new loan or a continuation of an existing loan. The amendments also enhanced existing disclosure requirements and introduced new requirements related to certain modifications of receivables made to borrowers experiencing financial difficulty. Furthermore, the amendments in this Update required that an entity disclose current-period gross write-offs by year of origination for financing receivables and net investment in leases within the scope of Subtopic 326-20. The Company adopted these amendments on January 1, 2023 and has observed no significant impact on the consolidated financial statements. Accounting Standards Pending Adoption FASB issued ASU 2023-09, Improvements to Income Tax Disclosures. This ASU was issued to enhance the transparency and decision usefulness of income tax disclosures, primarily related to the rate reconciliation and income taxes paid information. This ASU is effective for fiscal years beginning after December 15, 2024. The adoption of this accounting guidance is not expected to have a material impact on the Company’s consolidated financial statements but will result in the expansion of the income tax disclosures. FASB issued ASU 2023-07, Segment Reporting: Improvements to Reportable Segment Disclosures. This ASU was issued to address stakeholder requests for more detailed information about expenses within each reportable segment and address disclosure requirements there within. The amendments retain existing disclosure requirements, and expand upon them for both interim and annual reporting periods. In addition, entities with a single reportable segment must now provide all segment disclosures required, including the new disclosure requirements. This ASU is effective for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024. The adoption of this accounting guidance is not expected to have a material impact on the Company’s consolidated financial statements but will result in inclusion of certain segment reporting requirements not previously required. FASB issued ASU 2023-06, Disclosure Improvements - Codification Amendments in Response to the SEC's Disclosure Update and Simplification Initiative. This ASU was issued to incorporate 14 of the 27 simplification disclosures released by the SEC which overlapped with existing, but required incremental information to, GAAP to the FASB for incorporation into the Codification. The timing of these amendments will coincide with the effective dates of changes by the SEC in Regulations S-X or S-K. The adoption of this accounting guidance is not expected to have a material impact on the Company’s consolidated financial statements. FASB issued ASU 2023-02, Investments – Equity Method and Joint Ventures: Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method. This ASU permits reporting entities to elect to account for their tax equity investments, regardless of the tax credit program from which the income tax credits are received, using the proportional amortization method if certain conditions are met. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023. The adoption of this accounting guidance is not expected to have a material impact on the Company’s consolidated financial statements. 67 TriCo Bancshares 2023 10-K Note 2 - Business Combinations On March 25, 2022, the Company completed its acquisition of Valley Republic Bancorp (VRB), including the merger of Valley Republic Bank into Tri Counties Bank, with Tri Counties Bank as the surviving entity, in accordance with the terms of the merger agreement dated as of July 27, 2021. The cash and stock transaction was valued at $174.0 million in aggregate, based on TriCo's closing stock price of $42.48 on March 25, 2022. Under the terms of the merger agreement, the Company issued 4,105,518 shares, in addition to approximately $0.4 million in cash paid out for settlement of stock option awards at VRB. The following table summarizes the consideration paid for VRB and the amounts of assets acquired and liabilities assumed that were recorded at the acquisition date (in thousands): Fair Value as of March 25, 2022 173,585 431 174,016 427,314 109,716 771,353 4,658 13,609 10,635 29,744 1,367,029 (1,215,479) (47,236) (3,352) (10,516) (1,276,583) 90,446 83,570 $ $ Fair value of consideration transferred: Fair value of shares issued Cash consideration Total fair value of consideration transferred Assets acquired: Cash and cash equivalents Securities available for sale Loans and leases Premises and equipment Cash value of life insurance Core deposit intangible Other assets Total assets acquired Liabilities assumed: Deposits Subordinated debt SERP liability Other liabilities Total liabilities assumed Total net assets acquired Goodwill recognized 68 TriCo Bancshares 2023 10-K Note 3 – Investment Securities The amortized cost and estimated fair values of investment securities classified as available for sale and held to maturity are summarized in the following tables: Debt Securities Available for Sale Obligations of U.S. government agencies Obligations of states and political subdivisions Corporate bonds Asset backed securities Non-agency collateralized mortgage obligations Total debt securities available for sale Debt Securities Held to Maturity Obligations of U.S. government agencies Obligations of states and political subdivisions Total debt securities held to maturity Amortized Cost December 31, 2023 Gross Unrealized Gains Gross Unrealized Losses (in thousands) Estimated Fair Value $ 1,386,772 $ 2 $ (165,037) $ 1,221,737 262,879 6,173 359,214 369,287 268 — 255 — (26,772) 236,375 (571) (4,188) (35,778) 5,602 355,281 333,509 $ 2,384,325 $ 525 $ (232,346) $ 2,152,504 $ $ 130,823 $ — $ (8,331) $ 122,492 2,671 6 (43) 2,634 133,494 $ 6 $ (8,374) $ 125,126 There was no allowance for credit losses recorded for the held to maturity debt portfolio as of or for the years ended December 31, 2023 and 2022. Debt Securities Available for Sale Obligations of U.S. government agencies Obligations of states and political subdivisions Corporate bonds Asset backed securities Non-agency collateralized mortgage obligations Total debt securities available for sale Debt Securities Held to Maturity Obligations of U.S. government agencies Obligations of states and political subdivisions Total debt securities held to maturity Amortized Cost December 31, 2022 Gross Unrealized Gains Gross Unrealized Losses (in thousands) Estimated Fair Value $ 1,568,408 $ 3 $ (195,642) $ 1,372,769 332,625 6,164 454,943 380,847 401 — 17 — (39,821) 293,205 (413) (15,193) (39,901) 5,751 439,767 340,946 $ 2,742,987 $ 421 $ (290,970) $ 2,452,438 $ $ 154,830 $ 2 $ (11,013) $ 143,819 6,153 13 (47) 6,119 160,983 $ 15 $ (11,060) $ 149,938 During the year ended December 31, 2023, proceeds from sales of debt securities totaled $71.0 million, resulting in gross losses of $0.3 million. There were no sales of debt securities during the years ended 2022 and 2021, respectively. Investment securities with an aggregate carrying value of $702.2 million and $595.8 million at December 31, 2023 and 2022, respectively, were pledged as collateral for specific borrowings, lines of credit and local agency deposits. The amortized cost and estimated fair value of debt securities at December 31, 2023 by contractual maturity are shown below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. At December 31, 2023, obligations of U.S. government and agencies with an amortized cost basis totaling $1.4 billion consist almost entirely of residential real estate mortgage-backed securities whose contractual maturity, or principal repayment, will follow the repayment of the underlying mortgages. For purposes of the following table, the entire outstanding balance of these mortgage-backed securities issued by U.S. government corporations and agencies is categorized based on final maturity date. At December 31, 2023, the Company estimates the average remaining life of these mortgage-backed securities issued by U.S. government corporations and agencies to be approximately 6.7 years. Average remaining life is defined as the time span after which the principal balance has been reduced by half. 69 TriCo Bancshares 2023 10-K December 31, 2023 (In thousands) Due in one year Due after one year through five years Due after five years through ten years Due after ten years Totals Available for Sale Held to Maturity Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value $ 83,239 $ 81,775 $ — $ — 47,769 367,733 44,932 354,333 1,885,584 1,671,464 5,829 89,070 38,595 5,640 83,726 35,760 $ 2,384,325 $ 2,152,504 $ 133,494 $ 125,126 Gross unrealized losses on investment securities and the fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, were as follows: December 31, 2023 Debt Securities Available for Sale Less than 12 months 12 months or more Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss (in thousands) Obligations of U.S. government agencies Obligations of states and political subdivisions Corporate bonds Asset backed securities Non-agency collateralized mortgage obligations $ 224 $ — $ 1,221,320 $ (165,037) $ 1,221,544 $ (165,037) 6,229 — 15,928 44,276 (75) — (93) (583) 216,497 (26,697) 222,726 (26,772) 5,602 264,731 289,233 (571) 5,602 (4,095) 280,659 (571) (4,188) (35,195) 333,509 (35,778) Total debt securities available for sale $ 66,657 $ (751) $ 1,997,383 $ (231,595) $ 2,064,040 $ (232,346) Debt Securities Held to Maturity Obligations of U.S. government agencies Obligations of states and political subdivisions Total debt securities held to maturity $ $ — $ — $ 122,259 $ (8,331) $ 122,259 $ (8,331) — — 1,012 (43) 1,012 (43) — $ — $ 123,271 $ (8,374) $ 123,271 $ (8,374) December 31, 2022 Debt Securities Available for Sale Less than 12 months 12 months or more Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss (in thousands) Obligations of U.S. government agencies Obligations of states and political subdivisions Corporate bonds Asset backed securities Non-agency collateralized mortgage obligations $ 766,612 $ (134,234) $ 605,615 $ (61,408) $ 1,372,227 $ (195,642) 43,282 (12,917) 219,532 (26,904) 262,814 (39,821) — 205,329 203,620 — 5,751 (10,238) 231,703 (36,480) 123,075 (413) (4,955) (3,421) 5,751 437,032 326,695 (413) (15,193) (39,901) Total securities available for sale $ 1,218,843 $ (193,869) $ 1,185,676 $ (97,101) $ 2,404,519 $ (290,970) Debt Securities Held to Maturity Obligations of U.S. government agencies Obligations of states and political subdivisions Total debt securities held to maturity $ $ — $ — $ 143,577 $ (11,013) $ 143,577 $ (11,013) — — 4,530 (47) 4,530 (47) — $ — $ 148,107 $ (11,060) $ 148,107 $ (11,060) Obligations of U.S. government agencies: Unrealized losses on investments in obligations of U.S. government corporations and agencies are caused by interest rate increases. The contractual cash flows of these securities are guaranteed by U.S. Government Sponsored Entities (principally Fannie Mae and Freddie Mac). It is expected that the securities would not be settled at a price less than the amortized cost of the investment. Because the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, these investments are not considered other-than- temporarily impaired. At December 31, 2023, 165 debt securities representing obligations of U.S. government corporations and agencies had unrealized losses with aggregate depreciation of 11.90% from the Company’s amortized cost basis. Obligations of states and political subdivisions: The unrealized losses on investments in obligations of states and political subdivisions were caused by increases in required yields by investors in these types of securities. It is expected that the securities would not be settled at a 70 TriCo Bancshares 2023 10-K price less than the amortized cost of the investment. Because the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, these investments are not considered other-than-temporarily impaired. At December 31, 2023, 153 debt security representing obligations of states and political subdivisions had unrealized losses with aggregate depreciation of 10.73% from the Company’s amortized cost basis. Corporate bonds: The unrealized losses on investments in corporate bonds were caused by increases in required yields by investors in these types of securities. It is expected that the securities would not be settled at a price less than the amortized cost of the investment. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses as of and for the year ended December 31, 2023. At December 31, 2023, 6 asset backed securities had unrealized losses with aggregate depreciation of 9.25% from the Company’s amortized cost basis. Asset backed securities: The unrealized losses on investments in asset backed securities were caused by increases in required yields by investors in these types of securities. At the time of purchase, each of these securities were rated AA or AAA and through December 31, 2023 have not experienced any deterioration in credit rating. The Company continues to monitor these securities for changes in credit rating or other indications of credit deterioration. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, these investments are not considered other-than-temporarily impaired. At December 31, 2023, 35 asset backed securities had unrealized losses with aggregate depreciation of 1.47% from the Company’s amortized cost basis. Non-agency collateralized mortgage obligations: The unrealized losses on investments in asset backed securities were caused by increases in required yields by investors in these types of securities. It is expected that the securities would not be settled at a price less than the amortized cost of the investment. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses as of and for the year ended December 31, 2023. At December 31, 2023, 24 asset backed securities had unrealized losses with aggregate depreciation of 9.69% from the Company’s amortized cost basis. Marketable equity securities: As there were no sales of marketable equity securities, all unrealized gains or losses recognized during the reporting period were for equity securities still held as of the end of the reporting period. The Company monitors credit quality of debt securities held-to-maturity through the use of credit rating. The Company monitors the credit rating on a monthly basis. The following table summarizes the amortized cost of debt securities held-to-maturity at the dates indicated, aggregated by credit quality indicator: Debt Securities Held to Maturity Obligations of U.S. government agencies Obligations of states and political subdivisions Total debt securities held to maturity December 31, 2023 December 31, 2022 AAA/AA/A BBB/BB/B AAA/AA/A BBB/BB/B (In thousands) (In thousands) $ $ 130,823 $ 2,671 133,494 $ — — — $ $ 154,830 $ 6,153 160,983 $ — — — 71 TriCo Bancshares 2023 10-K Note 4 – Loans A summary of loan balances follows: (in thousands) Commercial real estate: CRE non-owner occupied CRE owner occupied Multifamily Farmland Total commercial real estate loans Consumer: SFR 1-4 1st DT liens SFR HELOCs and junior liens Other Total consumer loans Commercial and industrial Construction Agriculture production Leases Total loans, net of deferred loan fees and discounts Total principal balance of loans owed, net of charge-offs Unamortized net deferred loan fees Discounts to principal balance of loans owed, net of charge-offs Total loans, net of unamortized deferred loan fees and discounts Allowance for credit losses December 31, 2023 December 31, 2022 $ 2,217,806 $ 2,149,725 956,440 949,502 271,054 984,807 944,537 280,014 4,394,802 4,359,083 883,438 356,813 73,017 790,349 393,666 56,728 1,313,268 1,240,743 586,455 347,198 144,497 8,250 569,921 211,560 61,414 7,726 $ $ $ $ 6,794,470 $ 6,450,447 6,834,935 $ 6,496,210 (15,826) (24,639) (15,275) (30,488) 6,794,470 $ 6,450,447 (121,522) $ (105,680) In March 2020, the Small Business Administration ("SBA") Paycheck Protection Program ("PPP") was created to help small businesses keep workers employed during the COVID-19 crisis. As of December 31, 2023 and 2022, the total gross balance outstanding of PPP loans, which are included in commercial and industrial loans above, was $1.1 million and $1.6 million, respectively. During the year ended December 31, 2023, the Company recognized an insignificant amount of fees on PPP loans, as compared with $2.1 million and $14.1 million for the years ended December 31, 2022 and 2021, respectively. The SBA ended PPP and did not accept new borrowing applications, effective May 31, 2021. Note 5 – Allowance for Credit Losses The ACL was $121.5 million as of December 31, 2023 as compared to $105.7 million at December 31, 2022. The provision for credit losses on loans of $22.5 million during the year ended December 31, 2023 was comprised of $13.5 million in qualitative reserves, $2.4 million in quantitative reserves and $6.6 million in net charge-offs. The quantitative components of the ACL increased reserve requirements due largely to the continued rise in corporate debt yields and increasing uncertainty within global markets. This forecast data continues to evolve and includes improving shifts in the magnitude of changes for both the unemployment and GDP factors leading up to the balance sheet date. Despite continued declines on a year over year comparative basis, core inflation remains elevated from wage pressures, and higher living costs such as housing, energy and food prices resulting from a rising rate environment for nearly all of 2023. Management notes the rapid intervals of rate increases by the Federal Reserve may create repricing risk for certain borrowers and continued inversion of the yield curve, creates informed expectations of the US potentially entering a recession within 12 months. While projected cuts in interest rates from the Federal Reserve during 2024 may improve this outlook, the uncertainty associated with the extent and timing of these potential reductions has inhibited a material benefit to forecasted reserve levels. Furthermore, political uncertainty continues to exist within certain foreign markets that play a critical role within segments of the U.S economy. As a result, management continues to believe that certain credit weaknesses are likely present in the overall economy and that it is appropriate to cautiously maintain a reserve level that incorporates such risk factors. The remaining increase in the allowance for credit reserves related to quantitative metrics was the result of organic loan growth and changes in credit quality associated with levels of classified, past due and non-performing loans in addition to changes in qualitative factors. 72 TriCo Bancshares 2023 10-K The table below sets forth the components of the Company’s allowance for credit losses as of the dates indicated: (dollars in thousands) Allowance for credit losses: Qualitative and forecast factor allowance Quantitative (Cohort) model allowance Total allowance for credit losses Allowance for individually evaluated loans Total allowance for credit losses December 31, 2023 December 31, 2022 $ $ 84,291 $ 34,139 118,430 3,092 121,522 $ 70,777 32,489 103,266 2,414 105,680 The following table provides a summary of loans and leases purchased as part of the VRB acquisition with credit deterioration (PCD) at acquisition: As of March 25, 2022 (in thousands) Par value ACL at acquisition Non-credit discount Purchase price Commercial Real Estate Consumer Commercial and Industrial Construction Agriculture Production Total $ $ 27,237 $ 3,877 $ 2,674 $ 25,645 $ 9,080 $ (1,573) (2,305) (144) (360) (81) (47) (201) (232) (38) (12) 23,359 $ 3,373 $ 2,546 $ 25,212 $ 9,030 $ 68,513 (2,037) (2,956) 63,520 The following tables summarize the activity in the allowance for credit losses, and ending balance of loans, net of unearned fees for the periods indicated. (in thousands) Commercial real estate: Allowance for Credit Losses – December 31, 2023 Beginning Balance Charge-offs Recoveries Provision for (Benefit from) Credit Losses Ending Balance CRE non-owner occupied $ 30,962 $ CRE owner occupied Multifamily Farmland Total commercial real estate loans Consumer: SFR 1-4 1st DT liens SFR HELOCs and junior liens Other Total consumer loans Commercial and industrial Construction Agriculture production Leases Allowance for credit losses on loans Reserve for unfunded commitments 14,014 13,132 3,273 61,381 11,268 11,413 1,958 24,639 13,597 5,142 906 15 105,680 4,315 — $ (3,637) — — (3,637) — (66) (558) (624) (3,879) — — — (8,140) — — $ 4,115 $ 2 — — 2 262 723 190 1,175 316 — 34 — 1,527 — 4,702 1,286 1,015 11,118 2,479 (1,797) 1,581 2,263 2,716 3,714 2,649 (5) 22,455 1,535 Total $ 109,995 $ (8,140) $ 1,527 $ 23,990 $ 35,077 15,081 14,418 4,288 68,864 14,009 10,273 3,171 27,453 12,750 8,856 3,589 10 121,522 5,850 127,372 73 TriCo Bancshares 2023 10-K (in thousands) Commercial real estate: Allowance for Credit Losses – December 31, 2022 Beginning Balance ACL on PCD Loans Charge-offs Recoveries Provision for (Benefit from) Credit Losses Ending Balance CRE non-owner occupied $ 25,739 $ 746 $ — $ 1 $ 4,476 $ CRE owner occupied Multifamily Farmland Total commercial real estate loans Consumer: SFR 1-4 1st DT liens SFR HELOCs and junior liens Other Total consumer loans Commercial and industrial Construction Agriculture production Leases Allowance for credit losses on loans Reserve for unfunded commitments 10,691 12,395 2,315 51,140 10,723 10,510 2,241 23,474 3,862 5,667 1,215 18 85,376 3,790 63 — 764 1,573 144 — — 144 81 201 38 — 2,037 — — — (294) (294) — (22) (572) (594) (697) — — — (1,585) — 2 — — 3 79 429 235 743 1,157 — 4 — 1,907 — 3,258 737 488 8,959 322 496 54 872 9,194 (726) (351) (3) 17,945 525 30,962 14,014 13,132 3,273 61,381 11,268 11,413 1,958 24,639 13,597 5,142 906 15 105,680 4,315 Total $ 89,166 $ 2,037 $ (1,585) $ 1,907 $ 18,470 $ 109,995 (in thousands) Commercial real estate: Allowance for Credit Losses – December 31, 2021 Beginning Balance Charge-offs Recoveries Provision for (Benefit from) Credit Losses Ending Balance CRE non-owner occupied $ 29,380 $ — $ 12 $ (3,653) $ CRE owner occupied Multifamily Farmland Total commercial real estate loans Consumer: SFR 1-4 1st DT liens SFR HELOCs and junior liens Other Total consumer loans Commercial and industrial Construction Agriculture production Leases Allowance for credit losses on loans Reserve for unfunded commitments 10,861 11,472 1,980 53,693 10,117 11,771 3,260 25,148 4,252 7,540 1,209 5 91,847 3,400 (18) — (126) (144) (145) (29) (577) (751) (1,470) (27) — — (2,392) — 794 — — 806 13 1,127 361 1,501 755 — 24 — 3,086 — (946) 923 461 (3,215) 738 (2,359) (803) (2,424) 325 (1,846) (18) 13 (7,165) 390 Total $ 95,247 $ (2,392) $ 3,086 $ (6,775) $ 25,739 10,691 12,395 2,315 51,140 10,723 10,510 2,241 23,474 3,862 5,667 1,215 18 85,376 3,790 89,166 As part of the on-going monitoring of the credit quality of the Company’s loan portfolio, management tracks certain credit quality indicators including, but not limited to, trends relating to (i) the level of criticized and classified loans, (ii) net charge-offs, (iii) non-performing loans, and (iv) delinquency within the portfolio. The Company analyzes loans individually to classify the loans as to credit risk and grading. This analysis is performed annually for all outstanding balances greater than $1.0 million and non-homogeneous loans, such as commercial real estate loans, unless other indicators, such as delinquency, trigger more frequent evaluation. Loans below the $1.0 million threshold and homogenous in nature are evaluated as needed for proper grading based on delinquency and borrower credit scores. Collateral values may be determined by appraisals obtained through Bank approved, licensed appraisers, qualified independent third parties, public value information (blue book values for autos), sales invoices, or other appropriate means. Appropriate valuations are obtained at initiation of the credit and periodically (every 3-12 months depending on collateral type) once repayment is questionable and the loan has been classified. 74 TriCo Bancshares 2023 10-K The Company utilizes a risk grading system to assign a risk grade to each of its loans. Loans are graded on a scale ranging from Pass to Loss. A description of the general characteristics of the risk grades is as follows: • • • • • Pass – This grade represents loans ranging from acceptable to very little or no credit risk. These loans typically meet most if not all policy standards in regard to: loan amount as a percentage of collateral value, debt service coverage, profitability, leverage, and working capital. Special Mention – This grade represents “Other Assets Especially Mentioned” in accordance with regulatory guidelines and includes loans that display some potential weaknesses which, if left unaddressed, may result in deterioration of the repayment prospects for the asset or may inadequately protect the Company’s position in the future. These loans warrant more than normal supervision and attention. Substandard – This grade represents “Substandard” loans in accordance with regulatory guidelines. Loans within this rating typically exhibit weaknesses that are well defined to the point that repayment is jeopardized. Loss potential is, however, not necessarily evident. The underlying collateral supporting the credit appears to have sufficient value to protect the Company from loss of principal and accrued interest, or the loan has been written down to the point where this is true. There is a definite need for a well-defined workout/rehabilitation program. Doubtful – This grade represents “Doubtful” loans in accordance with regulatory guidelines. An asset classified as Doubtful has all the weaknesses inherent in a loan classified Substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. Pending factors include proposed merger, acquisition, or liquidation procedures, capital injection, perfecting liens on additional collateral, and financing plans. Loss – This grade represents “Loss” loans in accordance with regulatory guidelines. A loan classified as Loss is considered uncollectible and of such little value that its continuance as a bankable asset is not warranted. This classification does not mean that the loan has absolutely no recovery or salvage value, but rather that it is not practical or desirable to defer writing off the loan, even though some recovery may be affected in the future. The portion of the loan that is graded loss should be charged off no later than the end of the quarter in which the loss is identified. The following tables present ending loan balances by loan category and risk grade for the periods indicated: Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2023 (in thousands) 2023 2022 2021 2020 2019 Prior Commercial real estate: CRE non-owner occupied risk ratings Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Pass Special Mention Substandard Doubtful/Loss Total CRE non-owner occupied risk ratings $ 180,326 $ 413,863 $ 290,210 $ 137,656 $ 206,408 $ 792,875 $ 141,686 $ — $ 2,163,024 — — — 1,329 — — — 767 — 5,281 17,093 — — 2,139 — 14,174 12,540 — 1,247 212 — — — — 39,124 15,658 — $ 180,326 $ 415,192 $ 290,977 $ 142,937 $ 225,640 $ 819,589 $ 143,145 $ — $ 2,217,806 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — Commercial real estate: CRE owner occupied risk ratings Pass Special Mention Substandard Doubtful/Loss Total CRE owner occupied risk ratings $ 71,288 $ 196,915 $ 190,384 $ 118,457 $ 59,220 $ 268,990 $ 23,740 $ — $ 928,994 — — — 5,773 2,972 — 1,513 7,835 — 2,754 — — 703 111 — 2,678 3,107 — — — — — — — 13,421 14,025 — $ 71,288 $ 205,660 $ 199,732 $ 121,211 $ 60,034 $ 274,775 $ 23,740 $ — $ 956,440 Current period gross charge-offs $ — $ — $ — $ 1,380 $ — $ 2,228 $ 29 $ — $ 3,637 75 TriCo Bancshares 2023 10-K Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2023 (in thousands) 2023 2022 2021 2020 2019 Prior Commercial real estate: Multifamily risk ratings Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Pass $ 28,445 $ 177,032 $ 279,660 $ 89,106 $ 104,108 $ 225,446 $ 33,470 $ — $ 937,267 Special Mention Substandard Doubtful/Loss — — — — — — 11,914 — — — — — — — — 321 — — — — — — — — 12,235 — — Total multifamily loans $ 28,445 $ 177,032 $ 291,574 $ 89,106 $ 104,108 $ 225,767 $ 33,470 $ — $ 949,502 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — Commercial real estate: Farmland risk ratings Pass Special Mention Substandard Doubtful/Loss $ 21,729 $ 46,398 $ 37,134 $ 16,006 $ 16,780 $ 41,663 $ 50,857 $ — $ 230,567 — 101 — 2,170 813 — 5,802 9,053 — 51 377 — 261 — — 734 — 13,266 7,859 — — — — — 9,018 31,469 — Total farmland loans $ 21,830 $ 49,381 $ 51,989 $ 16,434 $ 17,041 $ 55,663 $ 58,716 $ — $ 271,054 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — Consumer loans: SFR 1-4 1st DT liens risk ratings Pass Special Mention Substandard Doubtful/Loss $ 135,741 $ 189,920 $ 260,870 $ 125,081 $ 29,568 $ 126,975 $ — $ 4,079 $ 872,234 71 — — — 140 — — — 1,296 1,490 — — — 531 — 1,948 5,265 — — — — 27 436 — 2,046 9,158 — Total SFR 1st DT liens $ 135,812 $ 190,060 $ 262,166 $ 126,571 $ 30,099 $ 134,188 $ — $ 4,542 $ 883,438 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — Consumer loans: SFR HELOCs and Junior Liens risk ratings Pass Special Mention Substandard Doubtful/Loss Total SFR HELOCs and Junior Liens $ 297 $ — $ — $ — $ — $ 96 $ 343,698 $ 6,444 $ 350,535 — — — — — — — — — — — — — — — — — — 2,274 3,212 — 138 654 — 2,412 3,866 — $ 297 $ — $ — $ — $ — $ 96 $ 349,184 $ 7,236 $ 356,813 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ 66 $ 66 Consumer loans: Other risk ratings Pass Special Mention Substandard Doubtful/Loss $ 34,441 $ 9,061 $ 8,908 $ 7,419 $ 6,825 $ 4,619 $ 659 $ — $ 71,932 21 87 — 54 183 — 203 164 — 63 30 — 54 116 — 37 52 — 18 3 — — — — 450 635 — Total other consumer loans $ 34,549 $ 9,298 $ 9,275 $ 7,512 $ 6,995 $ 4,708 $ 680 $ — $ 73,017 Current period gross charge-offs $ 376 $ 82 $ — $ 36 $ 39 $ 9 $ 16 $ — $ 558 76 TriCo Bancshares 2023 10-K Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2023 (in thousands) 2023 2022 2021 2020 2019 Prior Commercial and industrial loans: Commercial and industrial risk ratings Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Pass Special Mention Substandard Doubtful/Loss Total commercial and industrial loans $ 70,930 $ 83,184 $ 51,455 $ 9,504 $ 10,193 $ 7,636 $ 340,858 $ 318 $ 574,078 663 2,014 33 — — 237 782 — 83 103 — — 4 — 178 762 — 1,126 6,318 — — 74 — 2,320 10,057 — $ 70,963 $ 85,861 $ 52,474 $ 9,690 $ 10,197 $ 8,576 $ 348,302 $ 392 $ 586,455 Current period gross charge-offs $ 153 $ 287 $ 240 $ 2,285 $ — $ — $ 896 $ 18 $ 3,879 Construction loans: Construction risk ratings Pass Special Mention Substandard Doubtful/Loss $ 56,378 $ 136,294 $ 85,144 $ 47,632 $ 4,583 $ 6,518 $ — $ — — — 10,582 — — — — — — — — — 67 — — — — — — — — $ 336,549 10,582 — — — 67 — Total construction loans $ 56,378 $ 146,876 $ 85,144 $ 47,632 $ 4,650 $ 6,518 $ — $ — $ 347,198 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — Agriculture production loans: Agriculture production risk ratings Pass Special Mention Substandard Doubtful/Loss Total agriculture production loans $ 945 $ 2,749 $ 1,595 $ 396 $ 620 $ 8,491 $ 114,935 $ — — — 183 — — 543 — — 176 — — — — — — — — 11,302 2,562 — — $ 129,731 12,204 — — — 2,562 — $ 945 $ 2,932 $ 2,138 $ 572 $ 620 $ 8,491 $ 128,799 $ — $ 144,497 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — Leases: Lease risk ratings Pass Special Mention Substandard Doubtful/Loss Total leases $ 8,250 $ — $ — $ — $ — $ — $ — $ — $ 8,250 — — — $ 8,250 $ — $ — $ — $ — $ — $ — $ — $ 8,250 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — Total loans outstanding: Risk ratings Pass Special Mention Substandard Doubtful/Loss $ 608,770 $ 1,255,416 $ 1,205,360 $ 551,257 $ 438,305 $ 1,483,309 $ 1,049,903 $ 10,841 $ 6,603,161 125 188 — 20,754 20,212 6,122 19,897 — — 8,408 2,000 — 18,111 20,070 15,967 165 103,812 2,968 34,992 20,166 1,164 87,497 — — — — — Total loans outstanding $ 609,083 $ 1,282,292 $ 1,245,469 $ 561,665 $ 459,384 $ 1,538,371 $ 1,086,036 $ 12,170 $ 6,794,470 Current period gross charge-offs $ 529 $ 369 $ 240 $ 3,701 $ 39 $ 2,237 $ 941 $ 84 $ 8,140 77 TriCo Bancshares 2023 10-K Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2022 (in thousands) 2022 2021 2020 2019 2016 Prior Commercial real estate: CRE non-owner occupied risk ratings Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Pass Special Mention Substandard Doubtful/Loss Total CRE non-owner occupied risk ratings $ 399,910 $ 304,636 $ 152,960 $ 221,659 $ 147,842 $ 748,994 $ 123,794 $ — $ 2,099,795 — — — — 864 — — 768 — 20,033 — 21,681 1,346 — — 1,059 4,179 — — — — — — — 43,060 6,870 — $ 399,910 $ 305,500 $ 153,728 $ 241,692 $ 148,901 $ 774,854 $ 125,140 $ — $ 2,149,725 Commercial real estate: CRE owner occupied risk ratings $ 210,101 $ 197,787 $ 120,929 $ 64,244 $ 49,755 $ 251,137 $ 43,343 $ — $ 937,296 131 16,296 234 731 — 6,971 3,213 — 5,249 1,893 1,103 10,654 879 157 — — 25,242 22,269 — $ 213,445 $ 214,083 $ 126,412 $ 66,868 $ 50,858 $ 268,762 $ 44,379 $ — $ 984,807 Pass Special Mention Substandard Doubtful/Loss Total CRE owner occupied risk ratings Commercial real estate: Multifamily risk ratings Pass $ 159,318 $ 290,170 $ 96,937 $ 108,586 $ 106,287 $ 154,125 $ 28,989 $ — $ 944,412 Special Mention Substandard Doubtful/Loss — — — — — — — — — — — — — — — — 125 — — — — — — — — 125 — Total multifamily loans $ 159,318 $ 290,170 $ 96,937 $ 108,586 $ 106,287 $ 154,250 $ 28,989 $ — $ 944,537 Commercial real estate: Farmland risk ratings Pass Special Mention Substandard Doubtful/Loss $ 47,067 $ 53,275 $ 16,739 $ 18,589 $ 12,386 $ 34,528 $ 53,684 $ — $ 236,268 3,139 — 783 — 246 1,772 5,000 765 — 3,158 3,991 7,094 14,275 3,523 — — 27,434 16,312 — Total farmland loans $ 50,206 $ 54,058 $ 18,757 $ 24,354 $ 15,544 $ 45,613 $ 71,482 $ — $ 280,014 Consumer loans: SFR 1-4 1st DT liens risk ratings Pass Special Mention Substandard Doubtful/Loss $ 194,933 $ 265,370 $ 131,922 $ 33,395 $ 28,545 $ 115,469 $ 8 $ 2,924 $ 772,566 — — — — 1,531 1,204 — — — 282 — — 3,277 1,004 — 5,854 3,521 — — — — 465 645 — 11,409 6,374 — Total SFR 1st DT liens $ 194,933 $ 266,574 $ 133,453 $ 33,677 $ 32,826 $ 124,844 $ 8 $ 4,034 $ 790,349 78 TriCo Bancshares 2023 10-K Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2022 (in thousands) Consumer loans: 2022 2021 2020 2019 2016 Prior SFR HELOCs and Junior Liens risk ratings Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Pass Special Mention Substandard Doubtful/Loss Total SFR HELOCs and Junior Liens Consumer loans: Other risk ratings Pass Special Mention Substandard Doubtful/Loss $ 505 $ — $ — $ — $ — $ 127 $ 378,939 $ 8,462 $ 388,033 — — — — — — — — — — — — — — — — — — 1,842 3,072 — 81 638 — 1,923 3,710 — $ 505 $ — $ — $ — $ — $ 127 $ 383,853 $ 9,181 $ 393,666 $ 14,070 $ 12,990 $ 10,211 $ 10,650 $ 5,225 $ 1,945 $ 899 $ — $ 55,990 — — — 18 — — 77 42 — 135 92 — 176 — — 32 96 — 47 23 — — — — 485 253 — Total other consumer loans $ 14,070 $ 13,008 $ 10,330 $ 10,877 $ 5,401 $ 2,073 $ 969 $ — $ 56,728 Commercial and industrial loans: Commercial and industrial risk ratings Pass Special Mention Substandard Doubtful/Loss Total commercial and industrial loans Construction loans: Construction risk ratings Pass Special Mention Substandard Doubtful/Loss $ 125,710 $ 64,966 $ 17,746 $ 23,131 $ 7,628 $ 5,051 $ 297,341 $ 483 $ 542,056 3,032 1,293 139 21 1,142 5,179 49 14 138 33 768 611 11,547 3,798 — 101 15,694 12,171 — $ 130,035 $ 66,247 $ 22,946 $ 23,194 $ 7,799 $ 6,430 $ 312,686 $ 584 $ 569,921 $ 72,840 $ 72,308 $ 43,409 $ 15,358 $ 2,159 $ 4,900 $ — $ — $ 210,974 — — — — — — — — — — 457 — — — — — 129 — — — — — — — — 586 — Total construction loans $ 72,840 $ 72,308 $ 43,409 $ 15,815 $ 2,159 $ 5,029 $ — $ — $ 211,560 Agriculture production loans: Agriculture production risk ratings Pass Special Mention Substandard Doubtful/Loss Total agriculture production loans $ 3,414 $ 2,777 $ 1,149 $ 1,104 $ 8,902 $ 1,058 $ 38,425 $ — $ 56,829 — — — — — — — — — — — — 90 — — 31 — — 1,632 2,832 — — — — 1,753 2,832 — $ 3,414 $ 2,777 $ 1,149 $ 1,104 $ 8,992 $ 1,089 $ 42,889 $ — $ 61,414 79 TriCo Bancshares 2023 10-K Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2022 2022 2021 2020 2019 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total $ 7,726 $ — $ — $ — $ — $ — $ — $ — $ 7,726 — — — — — — — — — — — — — — — — — — — — — — — — — — — $ 7,726 $ — $ — $ — $ — $ — $ — $ — $ 7,726 $ 1,235,594 $ 1,264,279 $ 592,002 $ 496,716 $ 368,729 $ 1,317,334 $ 965,422 $ 11,869 $ 6,251,945 6,302 4,506 — 17,236 2,109 26,230 3,210 13,010 3,221 — — — 3,681 6,357 — 39,328 31,568 546 127,000 26,409 13,405 1,384 71,502 — — — — (in thousands) Leases: Lease risk ratings Pass Special Mention Substandard Doubtful/Loss Total leases Total loans outstanding: Risk ratings Pass Special Mention Substandard Doubtful/Loss Total loans outstanding $ 1,246,402 $ 1,284,725 $ 607,121 $ 526,167 $ 378,767 $ 1,383,071 $ 1,010,395 $ 13,799 $ 6,450,447 Once a loan becomes delinquent and repayment becomes questionable, a Bank collection officer will address collateral shortfalls with the borrower and attempt to obtain additional collateral. If this is not forthcoming and payment in full is unlikely, the Bank will estimate its probable loss, using a recent valuation as appropriate to the underlying collateral less estimated costs of sale, and charge the loan down to the estimated net realizable amount. Depending on the length of time until ultimate collection, the Bank may revalue the underlying collateral and take additional charge-offs as warranted. Revaluations may occur as often as every 3-12 months depending on the underlying collateral and volatility of values. Final charge-offs or recoveries are taken when collateral is liquidated and actual loss is known. Unpaid balances on loans after or during collection and liquidation may also be pursued through lawsuit and attachment of wages or judgment liens on borrower’s other assets. The following table shows the ending balance of current and past due originated loans by loan category as of the date indicated: (in thousands) Commercial real estate: Analysis of Past Due Loans - As of December 31, 2023 30-59 days 60-89 days > 90 days Total Past Due Loans Current Total CRE non-owner occupied $ 3,876 $ — $ 1,382 $ 5,258 $ 2,212,548 $ 2,217,806 CRE owner occupied Multifamily Farmland Total commercial real estate loans Consumer: SFR 1-4 1st DT liens SFR HELOCs and junior liens Other Total consumer loans Commercial and industrial Construction Agriculture production Leases Total 80 TriCo Bancshares 2023 10-K 34 — 635 4,545 141 16 148 305 244 — 593 447 — — 3,798 3,798 1,449 — 40 1,489 605 — 878 — 247 — 2,052 3,681 490 623 30 1,143 1,654 — 33 — 281 — 6,485 12,024 2,080 639 218 2,937 2,503 — 1,504 447 956,159 949,502 264,569 956,440 949,502 271,054 4,382,778 4,394,802 881,358 356,174 72,799 883,438 356,813 73,017 1,310,331 1,313,268 583,952 347,198 142,993 7,803 586,455 347,198 144,497 8,250 $ 6,134 $ 6,770 $ 6,511 $ 19,415 $ 6,775,055 $ 6,794,470 The following table shows the ending balance of current and past due originated loans by loan category as of the date indicated: (in thousands) Commercial real estate: Analysis of Past Due Loans - As of December 31, 2022 30-59 days 60-89 days > 90 days Total Past Due Loans Current Total CRE non-owner occupied $ — $ — $ — $ — $ 2,149,725 $ 2,149,725 CRE owner occupied Multifamily Farmland Total commercial real estate loans Consumer: SFR 1-4 1st DT liens SFR HELOCs and junior liens Other Total consumer loans Commercial and industrial Construction Agriculture production Leases Total — 159 — 159 24 172 26 222 2,300 — — — 98 — — 98 — 166 34 200 190 — — — 75 — — 75 279 707 55 1,041 283 379 — — 173 159 — 332 303 1,045 115 1,463 2,773 379 — — 984,634 944,378 280,014 984,807 944,537 280,014 4,358,751 4,359,083 790,046 392,621 56,613 790,349 393,666 56,728 1,239,280 1,240,743 567,148 211,181 61,414 7,726 569,921 211,560 61,414 7,726 $ 2,681 $ 488 $ 1,778 $ 4,947 $ 6,445,500 $ 6,450,447 The following table shows the ending balance of non accrual loans by loan category as of the date indicated: As of December 31, 2023 As of December 31, 2022 Non Accrual Loans Non accrual with no allowance for credit losses Total non accrual Past due 90 days or more and still accruing Non accrual with no allowance for credit losses Total non accrual Past due 90 days or more and still accruing (in thousands) Commercial real estate: CRE non-owner occupied $ 2,024 $ 2,024 $ — $ 1,739 $ 1,739 $ CRE owner occupied Multifamily Farmland Total commercial real estate loans Consumer: SFR 1-4 1st DT liens SFR HELOCs and junior liens Other Total consumer loans Commercial and industrial Construction Agriculture production Leases Sub-total Less: Guaranteed loans Total, net 3,994 — 5,996 12,014 2,808 3,281 39 6,128 1,379 67 — — 19,588 (766) 3,994 — 14,484 20,502 2,811 3,571 105 6,487 2,503 67 2,322 — 31,881 (878) — — — — — — — — 10 — — — 10 — 4,938 125 1,772 8,574 4,117 2,498 47 6,662 1,224 491 1,279 — 18,230 (105) 4,938 125 1,772 8,574 4,220 3,155 84 7,459 3,518 491 1,279 — 21,321 (225) $ 18,822 $ 31,003 $ 10 $ 18,125 $ 21,096 $ — — — — — — — — — — — — — — — — Interest income on non accrual loans that would have been recognized during the years ended December 31, 2023, 2022, and 2021, if all such loans had been current in accordance with their original terms, totaled $2.5 million, $1.4 million, and $2.2 million, respectively. Interest income actually recognized on these loans during the years ended December 31, 2023, 2022, and 2021 was $1.0 million, $0.6 million, and $0.5 million, respectively. 81 TriCo Bancshares 2023 10-K l a t o T t n e m p u q E i y r o t n e v n I d n a R A / k c u r T / e l i b o m o t u A d e e D d n 2 - R F S d e e D t s 1 - R F S l d n a m r a F y l i m a f i t l u M r e h t O e s u o h e r a W e c i f f O 3 2 0 2 , 1 3 r e b m e c e D f o s A l i t a e R ) s d n a s u o h t n i ( : s d o i r e p i g n w o l l o f e h t f o s a s n a o l f o s s a c l y b s n a o l t n e d n e p e d l a r e t a l l o c f o i s s a b t s o c d e z i t r o m a e h t t n e s e r p s e b a l t i g n w o l l o f e h T — 4 9 9 , 3 4 8 4 , 4 1 2 0 5 , 0 2 4 2 0 , 2 $ 8 0 8 , 2 3 8 2 , 3 5 9 6 8 1 , 6 3 0 5 , 2 7 6 1 2 3 , 2 — — — — — — — — — — 3 3 — 1 9 7 $ — — — — — — — — — — — — 2 1 7 , 1 $ — — — — — — — 5 9 5 9 — — — — $ — — — — — — 7 6 4 , 1 — 7 6 4 , 1 — — — — $ — — — — — 8 0 8 , 2 6 1 8 , 1 — 4 2 6 , 4 — 7 6 — — $ — — — $ 9 4 8 , 3 1 9 4 8 , 3 1 — — — — — — — — 9 7 5 , 1 3 $ 4 2 8 $ 2 1 7 , 1 $ 5 9 $ 7 6 4 , 1 $ 1 9 6 , 4 $ 9 4 8 , 3 1 $ — — — — — — — — — — — — — — $ 6 6 7 $ — 5 3 6 3 8 0 , 3 9 1 5 7 9 2 — — — — — $ 5 1 6 $ 4 8 4 , 4 6 1 8 5 1 6 — — — — — — — 8 8 2 , 2 — — — — — — — — — — — — — — — — 4 2 1 4 1 6 — — 8 3 7 — — — — — — — — $ 2 7 7 , 6 $ 6 1 8 $ 5 1 6 $ 8 3 7 $ l a t o T t n e m p u q E i y r o t n e v n I d n a R A / k c u r T / e l i b o m o t u A d e e D d n 2 - R F S d e e D t s 1 - R F S l d n a m r a F y l i m a f i t l u M r e h t O e s u o h e r a W e c i f f O 2 2 0 2 , 1 3 r e b m e c e D f o s A l i t a e R $ i d e p u c c o r e n w o - n o n E R C i d e p u c c o r e n w o E R C : e t a t s e l a e r l i a c r e m m o C e a t t s e l a e r l i a c r e m m o c l a t o T s n a o l s n e i l i r o n u j d n a s C O L E H R F S s n e i l T D t s 1 4 - 1 R F S s n a o l r e m u s n o c l a t o T r e h t O : r e m u s n o C l d n a m r a F l a i r t s u d n i d n a l i a c r e m m o C n o i t c u d o r p e r u t l u c i r g A n o i t c u r t s n o C l a t o T s e s a e L ) s d n a s u o h t n i ( y l i m a f i t l u M 5 3 9 , 0 2 $ 9 2 3 , 1 $ 6 9 5 , 1 $ 1 6 $ 1 2 1 , 1 $ 6 9 9 , 5 $ 2 7 7 , 1 $ 5 2 1 $ 4 3 3 , 6 $ 3 0 1 , 1 $ 3 7 1 $ 5 2 3 1 , $ 5 2 1 8 3 9 , 4 2 7 7 , 1 4 7 5 , 8 0 2 2 , 4 5 8 7 , 2 8 6 3 7 0 , 7 8 1 5 , 3 1 9 4 9 7 2 , 1 — 9 3 7 , 1 $ — — — — — — — 2 2 8 4 — 9 7 2 , 1 $ — — — — — — — — — — — 6 9 5 , 1 $ — — — — — — — 1 6 1 6 — — — — $ — — — — — — — 1 2 1 , 1 1 2 1 , 1 — — — — $ — — — — — 0 2 2 , 4 4 6 6 , 1 — 4 8 8 , 5 — 2 1 1 — — $ — — — $ 2 7 7 , 1 2 7 7 , 1 — — — — — — — — — — — 5 2 1 5 2 1 — — — — — — — — — — — — 2 1 2 , 3 3 0 1 , 1 $ 4 6 8 $ — $ 8 9 5 7 — — $ 7 7 7 8 4 5 — — $ i d e p u c c o r e n w o - n o n E R C i d e p u c c o r e n w o E R C : e t a t s e l a e r l i a c r e m m o C y l i m a f i t l u M l d n a m r a F 6 7 0 , 4 3 0 1 , 1 3 7 1 5 2 3 1 , e a t t s e l a e r l i a c r e m m o c l a t o T s n a o l : r e m u s n o C — — 5 5 — — 9 7 3 4 7 8 , 1 — — — — — — — — — — — — — — — — — — — — — — — — s n e i l i r o n u j d n a s C O L E H R F S s n e i l T D t s 1 4 - 1 R F S s n a o l r e m u s n o c l a t o T r e h t O l a i r t s u d n i d n a l i a c r e m m o C n o i t c u d o r p e r u t l u c i r g A n o i t c u r t s n o C l a t o T s e s a e L K - 0 1 3 2 0 2 s e r a h s c n a B o C i r T 2 8 Modifications to borrowers experiencing financial difficulty may include interest rate reductions, principal or interest forgiveness, forbearances, term extensions, and other actions intended to minimize economic loss and to avoid foreclosure or repossession of collateral. The following tables show the amortized cost basis of loans that were both experiencing financial difficulty and modified during the periods presented. The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivables is also presented below. (in thousands) Commercial real estate: Farmland Commercial and industrial Total For the twelve months ended December 31, 2023 Principal Forgiveness Payment Delay / Term Extension Combination - Term Change / Available Credit Reduction Combination - Payment Delay / Term Reduction Total % of Loans Outstanding $ $ — $ — — $ — $ 152 152 $ — $ 60 60 $ 1,430 — 1,430 0.53 % 0.08 % 0.61 % The following table presents the financial effect of loan modifications made to borrowers experiencing financial difficulty during the twelve months ended December 31, 2023. Modification Type Loan Type Twelve Months Ended Financial Effect Payment Delay / Extension Commercial and industrial Added 12 months to the life of the loan, which reduced the payment owed by the borrowers Payment Delay / Extension Commercial and industrial Changed loan terms from fully amortizing to interest-only with balloon, which reduced the payment owed by the borrowers Combination - Payment Delay / Term Reduction Farmland Changed loan terms from fully amortizing to interest-only with balloon, and reduced the loan maturity by 12 months, which reduced the loan payment owed by the borrowers Combination - Term Change / Available Credit Reduction Commercial and industrial Added 60 months to the life of the loan to avoid balloon repayment and reduced available credit by $11000 There were no loans with payment defaults by borrowers experiencing financial difficulty during the quarter ended December 31, 2023 which had material modifications in rate, term or principal forgiveness during the twelve months prior to default. Note 6 – Real Estate Owned A summary of the activity in the balance of real estate owned follows: (in thousands) Beginning balance, net Additions/transfers from loans Dispositions/sales Valuation adjustments Ending balance, net Ending valuation allowance Ending number of foreclosed assets Proceeds from sale of real estate owned Gain on sale of real estate owned Year ended December 31, 2023 2022 $ 3,439 $ 155 (206) (683) 2,705 $ (739) $ 9 224 $ 19 $ $ $ $ $ 2,594 1,349 (707) 203 3,439 (113) 9 873 166 At December 31, 2023, the balance of real estate owned includes 8 foreclosed real estate properties and one land property recorded as a result of obtaining physical possession of the property. At December 31, 2023, there were no real estate properties with formal foreclosure proceedings underway. 83 TriCo Bancshares 2023 10-K Note 7 – Premises and Equipment (in thousands) Land and land improvements Buildings Furniture and equipment Less: Accumulated depreciation Construction in progress Total premises and equipment As of December 31, 2023 2022 $ 26,032 $ 65,467 43,984 135,483 (65,154) 70,329 1,018 $ 71,347 $ 25,899 64,018 42,850 132,767 (61,657) 71,110 1,217 72,327 Depreciation expense for premises and equipment amounted to $5.8 million, $5.7 million, and $5.9 million during the years ended 2023, 2022, and 2021, respectively. Note 8 – Cash Value of Life Insurance A summary of the activity in the balance of cash value of life insurance follows: (in thousands) Beginning balance Acquired policies from business combination Increase in cash value of life insurance Gain on death benefit Insurance proceeds receivable reclassified to other assets Ending balance End of period death benefit Number of policies owned Insurance companies used Current and former employees and directors covered Year ended December 31, 2023 2022 $ 133,742 $ 117,857 — 3,150 — — 13,609 2,858 309 (891) $ $ 136,892 $ 133,742 224,021 $ 223,427 216 14 79 216 14 79 Note 9 – Goodwill and Other Intangible Assets The following table summarizes the Company’s goodwill intangible as of the dates indicated: (in thousands) Goodwill December 31, 2023 Additions Reductions December 31, 2022 $ 304,442 $ — $ — $ 304,442 Impairment exists when a Company’s carrying value exceeds its fair value. Goodwill is evaluated for impairment annually. At September 30, 2023, the Company had positive equity and the Company elected to perform a qualitative assessment to determine if it was more likely than not that the fair value of the Company exceeded its carrying value, including goodwill. The qualitative assessment indicated that it was more likely than not that the fair value of the reporting unit exceeds its carrying value, resulting in no impairment. For each of the years in the three year period ended December 31, 2023, there were no impairment charges recognized. 84 TriCo Bancshares 2023 10-K The following table summarizes the Company’s core deposit intangibles (“CDI”) as of the dates indicated: (in thousands) Core deposit intangibles, gross Fully amortized portion Acquisition of VRB Core deposit intangibles, gross ending balance Accumulated amortization, gross Fully amortized portion Amortization expense Accumulated amortization, gross ending balance Core deposit intangible, net December 31, 2023 December 31, 2022 $ 38,826 $ (2,046) — 36,780 (22,156) 2,046 (6,118) (26,228) $ 10,552 $ 36,265 (8,074) 10,635 38,826 (23,896) 8,074 (6,334) (22,156) 16,670 The Company's remaining net CDI balance of $10.6 million as of December 31, 2023 reflects gross balances recorded from the VRB acquisition on March 25, 2022 totaling $10.6 million and the FNBB acquisition on July 6, 2018 totaling $2.0 million. The following table summarizes the Company’s estimated core deposit intangible amortization (dollars in thousands): Years Ended 2024 2025 2026 2027 2028 Thereafter $ Estimated CDI Amortization 4,120 1,961 1,527 1,008 797 1,139 $ 10,552 Note 10 – Mortgage Servicing Rights The following tables summarize the activity in, and the main assumptions used to determine the fair value of mortgage servicing rights for the periods indicated (dollars in thousands): (in thousands) Balance at beginning of period Additions Change in fair value Balance at end of period Contractually specified servicing fees, late fees and ancillary fees earned Balance of loans serviced at: Beginning of period End of period Period end: Weighted-average prepayment speed (CPR) Weighted-average expected life (years) Weighted-average discount rate Year ended December 31, 2023 2022 2021 $ 6,712 $ 5,874 $ 400 (506) 6,606 1,808 739,919 714,801 $ $ $ $ 537 301 6,712 1,887 770,299 739,919 $ $ $ $ $ $ $ $ 5,092 1,654 (872) 5,874 1,881 779,530 770,299 116.0 % 127.0 % 208.0 % 7.8 12.0 % 7.6 12.0 % 5.7 12.0 % The changes in fair value of MSRs during 2023 were primarily due to changes in mortgage prepayment speeds and changes in principal balances of the underlying mortgages. The changes in fair value of MSRs during 2022 were primarily due to changes in principal balance and mortgage prepayment speeds of the MSRs. The changes in fair value of MSRs during 2021 were primarily due to changes in investor require rate of return, or discount rate, of the MSRs. 85 TriCo Bancshares 2023 10-K Note 11 - Leases The following table presents the components of lease expense for the periods indicated: (in thousands) Operating lease cost Short-term lease cost Variable lease cost Sublease income Total lease cost Year ended December 31, 2023 2022 $ $ 5,997 $ 329 38 — 5,725 283 26 — 6,364 $ 6,034 The following table presents supplemental cash flow information related to leases as of the periods ended: (in thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases ROUA obtained in exchange for operating lease liabilities Year ended December 31, 2023 2022 $ $ 6,378 $ 4,300 $ 5,904 6,149 The following table presents the weighted average operating lease term and discount rate as of the periods ended: Weighted-average remaining lease term Weighted-average discount rate At December 31, 2023, future expected operating lease payments are as follows (in thousands): Periods ending December 31, 2024 2025 2026 2027 2028 Thereafter Discount for present value of expected cash flows Lease liability at December 31, 2023 Note 12 – Deposits A summary of the balances of deposits follows: (in thousands) Noninterest-bearing demand Interest-bearing demand Savings Time certificates, $250,000 and over Other time certificates Total deposits Year ended December 31, 2023 2022 7.9 years 3.3 % 8.3 years 3.0 % $ $ 5,755 5,186 4,642 3,951 2,891 10,104 32,529 (4,268) 28,261 December 31, 2023 2022 $ 2,722,689 $ 3,502,095 1,731,814 2,682,068 250,180 447,287 1,718,541 2,884,378 46,350 177,649 $ 7,834,038 $ 8,329,013 Overdrawn deposit balances of $1.8 million and $1.8 million were classified as consumer loans at December 31, 2023 and 2022, respectively. 86 TriCo Bancshares 2023 10-K At December 31, 2023, the scheduled maturities of time deposits were as follows (in thousands): 2024 2025 2026 2027 2028 Thereafter Total Note 13 – Other Borrowings A summary of the balances of other borrowings follows: (in thousands) Overnight borrowing at FHLB, fixed rate, as of December 31, 2023 of 5.70%, payable on January 2, 2024 Term borrowing at FHLB, fixed rate, as of December 31, 2023 of 4.75%, payable on April 8, 2024 Overnight borrowing at FHLB, fixed rate, as of December 31, 2022 of 4.65%, payable on January 3, 2023 Other collateralized borrowings, fixed rate, as of December 31, 2023 and 2022 of 0.05%, payable on January 2, 2024 and January 3, 2023, respectively Total other borrowings Scheduled Maturities $ 626,979 59,053 8,453 1,868 1,114 — $ 697,467 December 31, 2023 2022 $ 400,000 $ 200,000 — — — 216,700 32,582 47,905 $ 632,582 $ 264,605 Other collateralized borrowings are generally overnight maturity borrowings from non-financial institutions that are collateralized by securities owned by the Company. As of December 31, 2023, the Company has pledged as collateral and sold under agreements to repurchase investment securities with fair value of $32.6 million under these other collateralized borrowings. The Company maintains a collateralized line of credit with the FHLB. Based on the FHLB stock requirements at December 31, 2023, this line provided for maximum borrowings of $2.5 billion of which $600.0 million was outstanding. As of December 31, 2023, the Company had designated investment securities with a fair value of $69.2 million and loans with unpaid principal balances totaling $4.6 billion as potential collateral under this collateralized line of credit with the FHLB. The Company maintains a collateralized line of credit with the Federal Reserve Bank of San Francisco (“FRB”). As of December 31, 2023, this line provided for maximum borrowings of $350.0 million of which none was outstanding. As of December 31, 2023, the Company has loans with unpaid principal balances totaling $444.5 million as potential collateral under this collateralized line of credit with the FRB. The Company has available unused correspondent banking lines of credit from commercial banks totaling $30.0 million for federal funds transactions at December 31, 2023. Note 14 – Junior Subordinated Debt At December 31, 2023, the Company had five wholly-owned subsidiary business trusts that had issued $63.0 million of trust preferred securities (the “Capital Trusts”). Trust preferred securities accrue and pay distributions periodically at specified annual rates as provided in the indentures. The trusts used the net proceeds from the offering to purchase a like amount of subordinated debentures (the “Debentures”) of the Company. The Debentures are the sole assets of the trusts. The Company’s obligations under the subordinated debentures and related documents, taken together, constitute a full and unconditional guarantee by the Company of the obligations of the trusts. The trust preferred securities are mandatorily redeemable upon the maturity of the Debentures, or upon earlier redemption as provided in the indentures. The Company has the right to redeem the Debentures in whole (but not in part) on or after specific dates, at a redemption price specified in the indentures plus any accrued but unpaid interest to the redemption date. The Company also has a right to defer consecutive payments of interest on the debentures for up to five years. The Company organized two of the Capital Trusts. The Company acquired its three other Capital Trusts and assumed their related Debentures as a result of its acquisition of North Valley Bancorp in 2014. The acquired Debentures were recorded on the Company’s books at their fair values on the acquisition date. The related fair value discounts to face value of these Debentures will be amortized over the remaining period in which their values are fully allowed to be included in the Company's capital ratio calculations using the effective interest method. 87 TriCo Bancshares 2023 10-K The recorded book values of the Debentures issued by the Capital Trusts are reflected as junior subordinated debt in the Company’s consolidated balance sheets. The common stock issued by the Capital Trusts and owned by the Company is recorded in other assets in the Company’s consolidated balance sheets. The recorded book value of the debentures issued by the Capital Trusts, less the recorded book value of the common stock of the Capital Trusts owned by the Company will continue to qualify as Tier 1 or Tier 2 capital under interim guidance issued by the Board of Governors of the Federal Reserve System until only five years remain until their scheduled maturity. In connection with the acquisition of Valley Republic Bancorp the Company assumed $36.0 million in subordinated capital notes, comprised of $16.0 million that matures in 2029 and $20.0 million that matures in 2035. The notes that mature in 2029 provide for quarterly interest payments at a fixed rate of 6.00% until March 29, 2024 and then will have a floating rate of three month SOFR plus 3.52% until maturity. The notes that mature in 2035 provide for quarterly interest payments at a fixed rate of 5.00% until August 27, 2025 and then will have a floating rate of 90-day average SOFR plus 4.90% until maturity. The acquired subordinated capital notes were recorded on the Company’s books at their fair values on the acquisition date. The related fair value premiums to face value will be amortized over the remaining maturity period using the effective interest method. The following table summarizes the terms and recorded balance of each subordinated debenture as of the date indicated (dollars in thousands): Subordinated Debt Series Maturity Date Face Value Coupon Rate (Variable) 3 mo. SOFR + As of December 31, 2023 December 31, 2022 Current Coupon Rate Recorded Book Value Recorded Book Value TriCo Cap Trust I TriCo Cap Trust II North Valley Trust II North Valley Trust III North Valley Trust IV VRB Subordinated - 6% VRB Subordinated - 5% 10/7/2033 $ 7/23/2034 4/24/2033 7/23/2034 3/15/2036 3/29/2029 8/27/2035 $ 20,619 20,619 6,186 5,155 10,310 16,000 20,000 98,889 3.05 % 2.55 % 3.25 % 2.80 % 1.33 % Fixed Fixed 8.71 % $ 20,619 $ 8.22 % 8.89 % 8.47 % 6.98 % 6.00 % 5.00 % 20,619 5,602 4,472 7,615 17,000 25,172 20,619 20,619 5,503 4,383 7,393 17,187 25,336 $ 101,099 $ 101,040 Note 15 – Commitments and Contingencies Restricted Cash Balances — Reserves (in the form of deposits with the San Francisco Federal Reserve Bank) were not required to be maintained as of December 31, 2023 and 2022. Financial Instruments with Off-Balance-Sheet Risk — The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, standby letters of credit, and deposit account overdraft privilege. Those instruments involve, to varying degrees, elements of risk in excess of the amount recognized in the balance sheet. The contract amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments. The Company’s exposure to loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit written is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. The Company’s exposure to loss in the event of nonperformance by the other party to the financial instrument for deposit account overdraft privilege is represented by the overdraft privilege amount disclosed to the deposit account holder. The following table presents a summary of the Bank’s commitments and contingent liabilities: (in thousands) Financial instruments whose amounts represent risk: Commitments to extend credit: Commercial loans Consumer loans Real estate mortgage loans Real estate construction loans Standby letters of credit Deposit account overdraft privilege 88 TriCo Bancshares 2023 10-K December 31, 2023 2022 $ 788,742 $ 656,705 652,110 453,647 331,178 38,449 121,539 760,588 458,896 312,371 26,599 126,634 Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates of one year or less or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on Management’s credit evaluation of the customer. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, residential properties, and income-producing commercial properties. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support private borrowing arrangements. Most standby letters of credit are issued for one year or less. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. Collateral requirements vary, but in general follow the requirements for other loan facilities. Deposit account overdraft privilege amount represents the unused overdraft privilege balance available to the Company’s deposit account holders who have deposit accounts covered by an overdraft privilege. The Company has established an overdraft privilege for certain of its deposit account products whereby all holders of such accounts who bring their accounts to a positive balance at least once every thirty days receive the overdraft privilege. The overdraft privilege allows depositors to overdraft their deposit account up to a predetermined level. The predetermined overdraft limit is set by the Company based on account type. Legal Proceedings — The Company is party to various legal and administrative proceedings and claims. While any litigation contains an element of uncertainty, management believes that neither the Company nor its subsidiaries are a party to any pending legal proceedings that are material, nor is their property the subject of any other material pending legal proceeding at this time. All other legal proceedings are routine and arise out of the ordinary course of the Bank’s business. None of those proceedings are currently expected to have a material adverse impact upon the Company’s and the Bank’s business, their consolidated financial position nor their operations in any material amount not already accrued, after taking into consideration any applicable insurance and any contingency reserves. Other Commitments and Contingencies—The Company has entered into employment agreements or change of control agreements with certain officers of the Company providing severance payments and accelerated vesting of benefits under supplemental retirement agreements to the officers in the event of a change in control of the Company and termination for other than cause or after a substantial and material change in the officer’s title, compensation or responsibilities. The Bank owns 13,396 shares of Class B common stock of Visa Inc. which are convertible into Class A common stock at a conversion ratio of 1.5875 per Class B share. As of December 31, 2023, the value of the Class A shares was $260.35 per share. Utilizing the conversion ratio, the value of unredeemed Class A equivalent shares owned by the Bank was $5,537,000 as of December 31, 2023, and has not been reflected in the accompanying consolidated financial statements. The shares of Visa Class B common stock are restricted and may not be transferred. Visa Member Banks are required to fund an escrow account to cover settlements, resolution of pending litigation and related claims. If the funds in the escrow account are insufficient to settle all the covered litigation, Visa may sell additional Class A shares, use the proceeds to settle litigation, and further reduce the conversion ratio. If funds remain in the escrow account after all litigation is settled, the Class B conversion ratio will be increased to reflect that surplus. Mortgage loans sold to investors may be sold with servicing rights retained, with only the standard legal representations and warranties regarding recourse to the Bank. Management believes that any liabilities that may result from such recourse provisions are not significant. Note 16 – Shareholders’ Equity Dividends Paid The Bank paid to the Company cash dividends in the aggregate amounts of $52.8 million, $64.2 million, and $31.6 million in 2023, 2022, and 2021, respectively. The Bank is regulated by the Federal Deposit Insurance Corporation (“FDIC”) and the State of California Department of Financial Protection & Innovation (the “DFPI”). Absent approval from the Commissioner of the DPFI, California banking laws generally limit the Bank’s ability to pay dividends to the lesser of (1) retained earnings or (2) net income for the last three fiscal years, less cash distributions paid during such period. Under this law, at December 31, 2023, the Bank could have paid dividends of $223.4 million to the Company without the approval of the Commissioner of the DFPI. Stock Repurchase Plan On February 25, 2021 the Board of Directors approved the authorization to repurchase up to 2,000,000 shares of the Company's common stock (the "2021 Repurchase Plan" or the "Plan"), which approximated 6.7% of the shares outstanding as of the approval date. The actual timing of any share repurchases will be determined by the Company's management and therefore the total value of the shares to be purchased under the program is subject to change. The Plan has no expiration date (in accordance with applicable laws and regulations) and for years ended December 31, 2023, 2022 and 2021, the Company repurchased 150,000, 576,881, and 63,317 shares under this Plan. As of December 31, 2023, 1,209,802 shares remained available for repurchases under the Plan. 89 TriCo Bancshares 2023 10-K Stock Repurchased Under Equity Compensation Plans The Company's shareholder-approved equity compensation plans permit employees to tender recently vested shares in lieu of cash for the payment of withholding taxes on such shares. During the years ended December 31, 2023, 2022, and 2021, employees tendered 2,506, 39,447, and 28,276 shares, respectively, of the Company's common stock in connection with option exercises. Employees also tendered 56,714, 27,840 and 19,413 shares in connection with other share based awards during December 31, 2023, 2022 and 2021, respectively. In total, shares of the Company's common stock tendered had market values of $2.3 million, $1.3 million, and $2.1 million for the years ended December 31, 2023, 2022 and 2021, respectively. The tendered shares were retired. The market value of tendered shares is the last market trade price at closing on the day an option is exercised or the other share based award vests. Stock repurchased under equity incentive plans are not included in the total of stock repurchased under the 2021 or 2019 Repurchase Plans. Note 17 – Stock Options and Other Equity-Based Incentive Instruments In April 2019, the Company’s Board of Directors adopted the TriCo Bancshares 2019 Equity Incentive Plan (2019 Plan) covering officers, employees, directors of, and consultants to, the Company. The 2019 Plan was approved by the Company’s shareholders in May 2019. The 2019 Plan allows the Company to issue equity-based incentives representing up to 1,500,000 shares, such as incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock, restricted stock units and performance awards (which could either be restricted stock or restricted stock units) (collectively, Awards). The 2019 Plan contains several enhanced corporate governance provisions, including: expressly providing that executives’ Awards and cash incentive compensation are subject to TriCo’s potential clawback or recoupment if the Company must restate its financial statements; generally imposing a one year minimum vesting period on Awards; generally requiring participants to hold at least 50% of the shares acquired under an Award for at least one year; and clarifying that credit for dividends declared on shares of common stock underlying an Award is subject to the same vesting requirements as the common stock underlying the Award. The number of shares available for issuance under the 2019 Plan will be reduced by: (i) one share for each share of common stock issued pursuant to a stock option; (ii) the total number of stock appreciation rights that are exercised, including any shares of common stock underlying such Awards that are not actually issued to the participant as the result of a net settlement; (iii) two shares for each share of common stock issued pursuant to a performance award, a restricted share Award or an RSU Award and (iv) any shares of common stock used to pay any exercise price or tax withholding obligation with respect to any Award. When Awards made under the 2019 Plan expire or are forfeited or cancelled, the underlying shares will become available for future Awards under the 2019 Plan. To the extent that a share of common stock pursuant to an Award that counted as two shares again becomes available for issuance under the 2019 Plan, the number of shares of common stock available for issuance under the 2019 Plan will increase by two shares. If shares of common stock issued pursuant to the Plan are repurchased by, or are surrendered or forfeited to the Company at no more than cost, then such shares will again be available for the grant of Awards under the Plan. Any shares of common stock repurchased by the Company with cash proceeds from the exercise of options will not, however, be added back to the pool of share available for issuance under the 2019 Plan. Shares awarded and delivered under the 2019 Plan may be authorized but unissued shares or reacquired shares. Shares tendered to TriCo or withheld from delivery to a participant as payment of the exercise price or in connection with the “net exercise” of a stock option or to satisfy TriCo’s tax withholding obligations will not again become available for future Awards under the 2019 Plan. As of December 31, 2023, there were no outstanding options for the purchase of common shares and 144,487 RSUs were outstanding. The number of shares that remain available for issuance is not more than 517,773, which could decrease based on the level of the Company's future performance and outcome of certain vesting requirements. The 2019 Plan replaced the TriCo Bancshares 2009 Equity Incentive Plan (2009 Plan), which expired on March 26, 2019. As a result of its expiration, no further awards may be issued under the 2009 Plan, though all awards under the 2009 Plan that were outstanding as of its expiration continue to be governed by the terms, conditions and procedures set forth in the 2009 Plan and any applicable award agreement. As of December 31, 2023, 7,500 options for the purchase of common shares remain outstanding under the 2009 Plan. Stock option activity is summarized in the following table for the dates indicated: Outstanding at January 1, 2022 Options granted Options exercised Options forfeited Outstanding at December 31, 2022 Options granted Options exercised Options forfeited Outstanding at December 31, 2023 90 TriCo Bancshares 2023 10-K Number of Shares Option Price per Share Weighted Average Exercise Price 78,825 $15.34 to $23.21 $ 19.28 — — — (63,325) $15.34 to $19.46 $ 18.79 — — — 15,500 $19.46 to $23.21 $ 21.27 — (8,000) — 7,500 — — $19.46 $ 19.46 — — $23.21 $ 23.21 The following table shows the number, weighted-average exercise price, intrinsic value, and weighted average remaining contractual life of options exercisable, options not yet exercisable and total options outstanding as of December 31, 2023: Number of options Weighted average exercise price Intrinsic value (in thousands) Weighted average remaining contractual term (yrs.) Currently Exercisable Currently Not Exercisable Total Outstanding $ $ 7,500 23.21 $ 148 $ 0.8 — — $ — $ n/a 7,500 23.21 148 0.8 All options outstanding as of December 31, 2023 are fully vested. The Company did not modify any option grants during the three year period ended December 31, 2023. The following table shows the total intrinsic value of options exercised, the total fair value of options vested, total compensation costs for options recognized in income, total tax benefit and excess tax benefits recognized in income related to compensation costs for options during the periods indicated: Intrinsic value of options exercised Fair value of options that vested Total compensation costs for options recognized in expense Total tax benefit recognized in income related to compensation costs for options Excess tax benefit recognized in income There were no stock options granted during 2023, 2022 and 2021, respectively. Restricted stock unit activity is summarized in the following table for the dates indicated: Year Ended December 31, 2023 2022 2021 $ 134,000 $ 1,190,000 $ 1,476,000 — — 40,000 — — — — — — — — — Outstanding at January 1, 2023 RSUs granted Additional market plus service condition RSUs vested RSUs added through dividend credits RSUs released through vesting RSUs forfeited/expired Outstanding at December 31, 2023 Service Condition Vesting RSUs Market Plus Service Condition Vesting RSUs Number of RSUs Weighted Average Fair Value on Date of Grant Number of RSUs Weighted Average Fair Value on Date of Grant 139,194 114,481 84,066 $ 34.52 55,908 $ 27.72 — 4,706 (81,902) (1,577) 144,487 10,301 — (55,928) (1,660) 123,102 The Company uses a Monte Carlo simulation model to determine the grant-date fair value of awards with market plus service conditions (PSU). The weighted average fair value and assumptions used to value the PSU awards granted with market-based performance conditions are as follows: Performance share fair value Risk-free interest rate Expected volatility Expected life (years) Expected dividend yield December 31, 2023 2022 $ 27.73 $ 4.16 % 33.86 % 3 3.22 % 40.89 4.10 % 39.01 % 3 2.32 % The 144,487 of service condition vesting RSUs outstanding as of December 31, 2023 include a feature whereby each RSU outstanding is credited with a dividend amount equal to any common stock cash dividend declared and paid, and the credited amount is divided by the 91 TriCo Bancshares 2023 10-K closing price of the Company’s stock on the dividend payable date to arrive at an additional amount of RSUs outstanding under the original grant. Additional RSUs credited through dividends are subject to the same vesting requirements as the original grant. The Company expects to recognize $4.0 million of pre-tax compensation costs related to these service condition vesting RSUs between December 31, 2023 and their vesting dates. The Company did not modify any service condition vesting RSUs during 2023 or 2022. The Company expects to recognize $2.3 million of pre-tax compensation costs related to the market plus service condition RSUs between December 31, 2023 and their vesting dates. As of December 31, 2023, the number of market plus service condition vesting RSUs outstanding that will actually vest, and be released, may be reduced to zero or increased to 184,653 depending on the total return of the Company’s common stock versus the total return of an index of bank stocks from the grant date to the vesting date. The Company did not modify any market plus service condition vesting RSUs during 2023 or 2022. The following table shows the compensation costs and excess tax benefits for RSUs recognized in income for the periods indicated: Total compensation costs recognized in income Service condition vesting RSUs Market plus service condition vesting RSUs Excess tax benefit recognized in income Service condition vesting RSUs Market plus service condition vesting RSUs Note 18 – Non-interest Income and Expense The components of other non-interest income were as follows: (in thousands) ATM and interchange fees Service charges on deposit accounts Other service fees Mortgage banking service fees Change in value of mortgage loan servicing rights Total service charges and fees Asset management and commission income Increase in cash value of life insurance Gain on sale of loans Lease brokerage income Sale of customer checks Loss on sale of investment securities Gain (loss) on marketable equity securities Other Total other noninterest income Total noninterest income Year Ended December 31, 2023 2022 2021 $ 2,807,000 $ 2,883,000 $ 1,728,000 1,319,000 986,000 910,000 $ 924,000 $ 1,079,000 $ 626,000 594,000 355,000 226,000 Year Ended December 31, 2023 2022 2021 $ 26,459 $ 26,767 $ 17,595 16,536 4,732 1,808 (506) 4,274 1,887 301 25,356 14,013 3,570 1,881 (872) 50,088 49,765 43,948 4,517 3,150 1,166 441 1,383 (284) 36 903 3,986 2,858 2,342 820 1,167 — (340) 2,448 11,312 13,281 $ 61,400 $ 63,046 $ 3,668 2,775 9,580 746 459 — (86) 2,574 19,716 63,664 Mortgage banking servicing fee income (expense), net of change in value of mortgage loan servicing rights, totaling $1.3 million, $2.2 million, and $1.0 million were recorded within service charges and fees for the years ended December 31, 2023, 2022, and 2021, respectively. 92 TriCo Bancshares 2023 10-K The components of noninterest expense were as follows: (in thousands) Year Ended December 31, 2023 2022 2021 Base salaries, net of deferred loan origination costs $ 94,564 $ 84,861 $ 15,557 25,674 135,795 16,135 18,933 5,644 7,080 — 3,531 7,358 6,118 2,547 5,276 1,851 2,444 1,236 (133) 23 19,344 97,387 17,908 27,083 129,852 15,493 14,660 5,733 6,984 6,253 3,694 4,392 6,334 2,298 3,142 2,013 1,000 1,147 (481) (1,070) 15,201 86,793 69,844 14,957 21,550 106,351 14,910 13,985 5,358 6,040 1,523 2,899 3,657 5,464 2,253 2,581 1,214 964 710 (233) (439) 11,038 71,924 $ 233,182 $ 216,645 $ 178,275 Incentive compensation Benefits and other compensation costs Total salaries and benefits expense Occupancy Data processing and software Equipment ATM and POS network charges Merger and acquisition expense Advertising Professional fees Intangible amortization Telecommunications Regulatory assessments and insurance Courier service Operational losses Postage Gain on sale or acquisition of foreclosed assets Loss (gain) on disposal of fixed assets Other miscellaneous expense Total other noninterest expense Total noninterest expense 93 TriCo Bancshares 2023 10-K Note 19 – Income Taxes The components of consolidated income tax expense are as follows (in thousands): Current tax expense Federal State Deferred tax expense Federal State Total tax expense Year Ended December 31, 2023 2022 2021 $ $ 26,133 $ 34,155 $ 19,781 45,914 (1,330) (1,069) (2,399) 22,355 56,510 (5,224) (2,798) (8,022) 28,763 18,221 46,984 (872) (64) (936) $ 43,515 $ 48,488 $ 46,048 A deferred tax asset or liability is recognized for the tax consequences of temporary differences in the recognition of revenue and expense for financial and tax reporting purposes. The net change during the year in the deferred tax asset or liability results in a deferred tax expense or benefit. The Company recognized, as components of tax expense, tax credits and other tax benefits, and amortization expense relating to our investments in Qualified Affordable Housing Projects as follows for the periods indicated (in thousands): Tax credits and other tax benefits – decrease in tax expense Amortization – increase in tax expense Year Ended December 31, 2023 2022 2021 $ $ (10,857) $ (6,370) $ (4,224) 9,092 $ 6,178 $ 3,604 The carrying value of Low Income Housing Tax Credit Funds was $96.9 and $91.0 million as of December 31, 2023 and 2022, respectively. As of December 31, 2023, the Company has committed to make additional capital contributions to the Low Income Housing Tax Credit Funds in the amount of $63.3 million, and these contributions are expected to be made over the next several years. The provisions for income taxes applicable to income before taxes for the years ended December 31, 2023, 2022 and 2021 differ from amounts computed by applying the statutory Federal income tax rates to income before taxes. The effective tax rate and the statutory federal income tax rate are reconciled as follows: Year Ended December 31, 2023 2022 2021 21.0 % 21.0 % 21.0 % 7.9 (0.7) (0.4) (6.6) 5.6 0.3 — (0.1) 27.0 % 7.9 (0.7) (0.4) (3.7) 3.6 (0.2) 0.1 0.3 7.9 (0.5) (0.5) (2.6) 2.2 (0.1) 0.1 0.6 27.9 % 28.1 % (in thousands) Federal statutory income tax rate State income taxes, net of federal tax benefit Tax-exempt interest on municipal obligations Tax-exempt life insurance related income Low income housing tax credits Low income housing tax credit amortization Equity compensation Non-deductible merger expenses Other Effective Tax Rate 94 TriCo Bancshares 2023 10-K The temporary differences, tax effected, which give rise to the Company’s net deferred tax asset recorded in other assets are as follows for the years indicated (in thousands): December 31, 2023 2022 Deferred tax assets: Allowance for losses and reserve for unfunded commitments $ 37,656 $ 32,519 Deferred compensation Other accrued expenses Additional unfunded status of the supplemental retirement plans Operating lease liability State taxes Share based compensation Nonaccrual interest Acquisition cost basis Unrealized loss on securities Tax credits Net operating loss carryforwards Other Total deferred tax assets Deferred tax liabilities: Securities income Depreciation Right of use asset Funded pension liability Securities accretion Mortgage servicing rights valuation Core deposit intangible Junior subordinated debt Prepaid expenses and other Total deferred tax liability Net deferred tax asset 1,534 3,899 15,434 8,355 3,346 1,050 706 12,046 68,535 852 953 190 1,696 2,720 16,036 8,575 3,649 1,132 643 14,640 85,897 852 2,098 120 154,556 170,577 (777) (8,364) (7,726) (3,999) (2,265) (1,946) (2,814) (1,171) (1,170) (777) (8,270) (7,941) (4,110) (1,265) (1,976) (4,778) (1,293) (991) (30,232) (31,401) $ 124,324 $ 139,176 As part of the merger with FNB Bancorp in 2018 and North Valley Bancorp in 2014, TriCo acquired federal and state net operating loss carryforwards, capital loss carryforwards, and tax credit carryforwards. These tax attribute carryforwards will be subject to provisions of the tax law that limit the use of such losses and credits generated by a company prior to the date certain ownership changes occur. The amount of the Company’s net operating loss carryforwards that are subject to these limitations as of December 31, 2023 were approximately $2.7 million for federal and $4.8 million for California. The amount of the Company’s tax credits that would be subject to these limitations as of December 31, 2023 are $0.3 million and $0.6 million for federal and California, respectively. Due to the limitation, a significant portion of the state tax credits will expire regardless of whether the Company generates future taxable income. As such, the Company has recorded the future benefit of these tax credits on the books at the value which is more likely than not to be realized. These tax loss and tax credit carryforwards expire at various dates through 2032. The Company believes that a valuation allowance is not needed to reduce the deferred tax assets as it is more likely than not that the results of future operations will generate sufficient taxable income to realize the deferred tax assets, including the tax attribute carryforwards acquired as part of past mergers. Disclosure of unrecognized tax benefits at December 31, 2023 and 2022 were not considered significant for disclosure purposes. Management does not expect the unrecognized tax benefit will materially change in the next 12 months. During the years ended December 31, 2023 and December 31, 2022 the Company did not recognize any significant amounts related to interest and penalties associated with taxes. The Company files income tax returns in the U.S. federal jurisdiction, and California. With few exceptions, the Company is no longer subject to U.S. federal and state/local income tax examinations by tax authorities for years before 2020 and 2019, respectively. 95 TriCo Bancshares 2023 10-K Note 20 – Earnings per Share Earnings per share have been computed based on the following: (in thousands) Net income Average number of common shares outstanding Effect of dilutive stock options and restricted stock Average number of common shares outstanding used to calculate diluted earnings per share Equity awards excluded from diluted earnings per share because their effect was antidilutive Year Ended December 31, 2023 2022 2021 $ 117,390 $ 125,419 $ 117,655 33,261 94 33,355 — 32,584 137 32,721 — 29,721 161 29,882 — Note 21 – Comprehensive Income (Loss) Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities, such as unrealized gains and losses on available-for-sale securities, are reported as a separate component of the equity section of the balance sheet, such items, along with net income, are components of comprehensive income. The components of other comprehensive income and related tax effects are as follows: (in thousands) Year Ended December 31, 2023 2022 2021 Unrealized holding gains (losses) on available for sale securities before reclassifications $ 58,444 $ (290,157) $ (19,575) Amounts reclassified out of accumulated other comprehensive income: Realized loss (gain) on debt securities Total amounts reclassified out of accumulated other comprehensive income Unrealized holding gains (losses) on available for sale securities after reclassifications Tax effect Unrealized holding gains (losses) on available for sale securities, net of tax Change in unfunded status of the supplemental retirement plans before reclassifications Amounts reclassified out of accumulated other comprehensive income: Amortization of prior service cost Amortization of actuarial losses Total amounts reclassified out of accumulated other comprehensive income Change in unfunded status of the supplemental retirement plans after reclassifications Tax effect Change in unfunded status of the supplemental retirement plans, net of tax Change in joint beneficiary agreement liability before reclassifications Tax effect Change in unfunded status of the supplemental retirement plans, net of tax 284 284 — — — — 58,728 (290,157) (19,575) (17,363) 85,781 5,787 41,365 (204,376) (13,788) 81 11,522 3,497 — (455) (455) (374) 111 (263) (366) — (366) (28) 8 (20) 11,502 (3,401) 8,101 1,389 — 1,389 (58) 254 196 3,693 (1,091) 2,602 (113) — (113) Total other comprehensive income (loss) $ 40,736 $ (194,886) $ (11,299) The components of accumulated other comprehensive loss, included in shareholders’ equity, are as follows: (in thousands) Net unrealized loss on available for sale securities Tax effect Unrealized holding loss on available for sale securities, net of tax Unfunded status of the supplemental retirement plans Tax effect Unfunded status of the supplemental retirement plans, net of tax Joint beneficiary agreement liability, net of tax Accumulated other comprehensive loss 96 TriCo Bancshares 2023 10-K Year Ended December 31, 2023 2022 $ (231,821) $ (290,549) 68,534 85,897 (163,287) (204,652) 13,527 (3,999) 9,528 590 13,901 (4,110) 9,791 956 $ (153,169) $ (193,905) Note 22 – Retirement Plans 401(k) Plan The Company sponsors a 401(k) Plan whereby substantially all employees age 21 and over with 90 days of service may participate. Participants may contribute a portion of their compensation subject to certain limits based on federal tax laws. The Company provides a discretionary matching contribution equal to 50% of participant’s elective deferrals, up to 4% of eligible compensation. The Company recorded salaries & benefits expense attributable to the 401(k) Plan matching contributions and 401(k) Plan matching contributions for the years ended: (in thousands) 401(k) Plan benefits expense 401(k) Plan contributions made by the Company Employee Stock Ownership Plan Year Ended December 31, 2023 2022 2021 $ $ 1,767 $ 1,541 $ 1,524 $ 1,214 $ 1,211 1,121 Substantially all employees with at least one year of service are covered by a discretionary employee stock ownership plan (ESOP). Company shares owned by the ESOP are paid dividends and included in the calculation of earnings per share as common shares outstanding. Contributions are made to the plan at the discretion of the Board of Directors. Expenses related to the Company’s ESOP, included in benefits and other compensation costs under salaries and benefits expense, and contributions to the plan for the years ended were: (in thousands) ESOP benefits expense ESOP contributions made by the Company Deferred Compensation Plans Year Ended December 31, 2023 2022 2021 $ $ 3,075 $ 2,824 $ 2,977 $ 3,535 $ 1,888 878 The Company has deferred compensation plans for certain directors and key executives, which allow certain directors and key executives designated by the Board of Directors of the Company to defer a portion of their compensation. The Company has purchased insurance on the lives of certain of the participants and intends to hold these policies until death as a cost recovery of the Company’s deferred compensation obligations of $5.2 million and $5.7 million at December 31, 2023 and 2022, respectively. Earnings credits on deferred balances included in non-interest expense are included in the following table: (in thousands) Year Ended December 31, 2023 2022 2021 Deferred compensation earnings credits included in non-interest expense $ 210 $ 187 $ 176 Supplemental Retirement Plans The Company has supplemental retirement plans for certain directors and key executives. These plans are non-qualified defined benefit plans and are unsecured and unfunded. The Company has purchased insurance on the lives of the participants and intends to hold these policies until death as a cost recovery of the Company’s retirement obligations. The cash values of the insurance policies purchased to fund the deferred compensation obligations and the supplemental retirement obligations were $136.9 million and $133.7 million at December 31, 2023 and 2022, respectively. The Company recorded in other liabilities the additional funded status of the supplemental retirement plans of $13.5 million and $13.9 million related to the supplemental retirement plans as of December 31, 2023 and 2022, respectively. These amounts represent the amount by which the projected benefit obligations for these retirement plans exceeded the fair value of plan assets plus amounts previously accrued related to the plans. The projected benefit obligation is recorded in other liabilities. At December 31, 2023 and 2022, the additional funded status of the supplemental retirement plans of $13.5 million and $13.9 million were offset by a reduction of shareholders’ equity accumulated other comprehensive gain of $9.5 million and $9.8 million, respectively, representing the after-tax impact of the additional funded status of the supplemental retirement plans, and the related deferred tax liability of $4.0 million and $4.1 million, respectively. Amounts recognized as a component of accumulated other comprehensive income (loss) as of year-end that have not been recognized as a component of the combined net period benefit cost of the Company’s defined benefit pension plans are presented in the following table. The Company expects to recognize approximately $0.5 million of the net actuarial loss reported in the following table as of December 31, 2023 as a component of net periodic benefit cost during 2022. 97 TriCo Bancshares 2023 10-K (in thousands) Transition obligation Prior service cost Net actuarial (gain) / loss Amount included in accumulated other comprehensive income (loss) Deferred tax liability / (benefit) December 31, 2023 2022 $ — $ — (13,527) (13,527) 3,999 — — (13,901) (13,901) 4,109 Amount included in accumulated other comprehensive income (loss), net of tax $ (9,528) $ (9,792) Information pertaining to the activity in the supplemental retirement plans, using a measurement date of December 31, is as follows: (in thousands) Change in benefit obligation: Benefit obligation at beginning of year Acquisition of obligations Service cost Interest cost Actuarial (loss)/gain Plan amendments Benefits paid Benefit obligation at end of year Change in plan assets: Fair value of plan assets at beginning of year Fair value of plan assets at end of year Funded status Unrecognized net obligation existing at January 1, 1986 Unrecognized net actuarial (loss)/gain Unrecognized prior service cost Accumulated other comprehensive loss Accrued benefit cost Accumulated benefit obligation December 31, 2023 2022 $ (40,341) $ (43,834) — (138) (2,016) 81 — 3,769 (3,310) (1,624) (1,731) 10,266 (2,141) 2,033 (38,645) $ (40,341) — $ — $ — — (38,645) $ (40,341) — — (13,527) (13,901) — — 13,527 13,901 (38,645) $ (40,341) (38,645) $ (40,341) $ $ $ $ $ $ The following table sets forth the net periodic benefit cost recognized for the supplemental retirement plans: (in thousands) Net pension cost included the following components: Service cost-benefits earned during the period Interest cost on projected benefit obligation Amortization of net obligation at transition Amortization of prior service cost Recognized net actuarial loss Amortization of loss/(gain) Recognition of pension service cost to due amendment Year Ended December 31, 2023 2022 2021 $ 138 $ 1,624 $ 2,016 1,731 — — 10 (466) — — (28) (86) (114) 2,141 1,103 1,518 — (58) 254 — — Net periodic pension cost $ 1,698 $ 5,268 $ 2,817 98 TriCo Bancshares 2023 10-K The following table sets forth assumptions used in accounting for the plans: Discount rate used to calculate benefit obligation Discount rate used to calculate net periodic pension cost Average annual increase in executive compensation Average annual increase in director compensation Year Ended December 31, 2023 2022 2021 5.01 % 5.23 % — % — % 5.23 % 2.74 % — % — % 2.74 % 2.40 % 3.25 % — % The following table sets forth the expected benefit payments to participants and estimated contributions to be made by the Company under the supplemental retirement plans for the years indicated: (in thousands) 2024 2025 2026 2027 2028 2028-2032 Expected Benefit Payments to Participants Estimated Company Contributions $ 2,736 $ 2,906 2,895 2,916 2,885 2,736 2,906 2,895 2,916 2,885 18,580 18,580 Note 23 – Related Party Transactions Certain directors, officers, and companies with which they are associated were customers of, and had banking transactions with, the Company or the Bank in the ordinary course of business. The following table summarizes the activity in these loans for the periods indicated: (in thousands) Balance January 1, 2022 Advances/new loans Removed/payments Balance December 31, 2022 Advances/new loans Removed/payments Balance December 31, 2023 $ $ 6,316 11,960 (6,892) 11,384 — (9,851) 1,533 Deposits of directors, officers and other related parties to the Bank totaled $29.7 million and $28.4 million at December 31, 2023 and 2022, respectively. Note 24 – Fair Value Measurement The Company utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. In estimating fair value, the Company utilizes valuation techniques that are consistent with the market approach, income approach, and/or the cost approach. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset and the risk of nonperformance. Securities available-for-sale and mortgage servicing rights are recorded at fair value on a recurring basis. Additionally, from time to time, the Company may be required to record at fair value other assets on a nonrecurring basis, such as loans held for sale, loans held for investment and certain other assets. These nonrecurring fair value adjustments typically involve application of lower of cost or market accounting or impairment write-downs of individual assets. The Company groups assets and liabilities at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observable nature of the assumptions used to determine fair value. These levels are: Level 1 — Valuation is based upon quoted prices for identical instruments traded in active markets. 99 TriCo Bancshares 2023 10-K Level 2 — Level 3 — Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. Valuation is generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques. Securities available for sale — Securities available for sale are recorded at fair value on a recurring basis. Fair value measurement is based upon quoted prices, if available. If quoted prices are not available, fair values are measured using independent pricing models or other model-based valuation techniques such as the present value of future cash flows, adjusted for the security’s credit rating, prepayment assumptions and other factors such as credit loss assumptions. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange, U.S. Treasury securities that are traded by dealers or brokers in active over-the-counter markets and money market funds. Level 2 securities include mortgage-backed securities issued by government sponsored entities, municipal bonds and corporate debt securities. The Company had no securities classified as Level 3 during any of the periods covered in these financial statements. Loans held for sale — Loans held for sale are carried at the lower of cost or fair value. The fair value of loans held for sale is based on what secondary markets are currently offering for loans with similar characteristics. As such, we classify those loans subjected to nonrecurring fair value adjustments as Level 2. Individually evaluated loans — Loans are not recorded at fair value on a recurring basis. However, from time to time, loans may require individual analysis and an allowance for credit losses is established. Loans for which it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are an example. The fair value of individually evaluated loans is estimated using one of several methods, including collateral value, fair value of similar debt, enterprise value, liquidation value and discounted cash flows. Those individually evaluated loans not requiring an allowance represent loans for which the fair value of the expected repayments or collateral exceed the recorded investments in such loans. Individually evaluated loans where an allowance is established based on the fair value of collateral require classification in the fair value hierarchy. When the fair value of the collateral is based on an observable market price or a current appraised value which uses substantially observable data, the Company records the loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is below the appraised value, or the appraised value contains a significant unobservable assumption, such as deviations from comparable sales, and there is no observable market price, the Company records the loan as nonrecurring Level 3. Foreclosed assets — Foreclosed assets include assets acquired through, or in lieu of, loan foreclosure. Foreclosed assets are held for sale and are initially recorded at fair value at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, management periodically performs valuations and the assets are carried at the lower of carrying amount or fair value less cost to sell. When the fair value of foreclosed assets is based on an observable market price or a current appraised value which uses substantially observable data, the Company records the asset as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value, or the appraised value contains a significant unobservable assumption, such as deviations from comparable sales, and there is no observable market price, the Company records the foreclosed asset as nonrecurring Level 3. Revenue and expenses from operations and changes in the valuation allowance are included in other non-interest expense. Mortgage servicing rights — Mortgage servicing rights are carried at fair value. A valuation model, which utilizes a discounted cash flow analysis using a discount rate and prepayment speed assumptions is used in the computation of the fair value measurement. While the prepayment speed assumption is currently quoted for comparable instruments, the discount rate assumption currently requires a significant degree of management judgment and is therefore considered an unobservable input. As such, the Company classifies mortgage servicing rights subjected to recurring fair value adjustments as Level 3. Additional information regarding mortgage servicing rights can be found in Note 10 in the consolidated financial statements at Item 1 of this report. The tables below presents the recorded amount of assets and liabilities measured at fair value on a recurring basis (in thousands): 100 TriCo Bancshares 2023 10-K Fair value at December 31, 2023 Marketable equity securities Debt securities available for sale: Obligations of U.S. government agencies Obligations of states and political subdivisions Corporate bonds Asset backed securities Non-agency collateralized mortgage obligations Loans held for sale Mortgage servicing rights Total assets measured at fair value Fair value at December 31, 2022 Marketable equity securities Debt securities available for sale: Obligations of U.S. government agencies Obligations of states and political subdivisions Corporate bonds Asset backed securities Non-agency collateralized mortgage obligation Loans held for sale Mortgage servicing rights Total Level 1 Level 2 Level 3 $ 2,634 $ 2,634 1,221,737 236,375 5,602 355,281 333,509 458 6,606 1,221,737 236,375 5,602 355,281 333,509 458 $ 2,162,202 $ 2,634 $ 2,152,962 $ 6,606 6,606 Total Level 1 Level 2 Level 3 $ 2,598 $ 2,598 $ — $ 1,372,769 293,205 5,751 439,767 340,946 1,846 6,712 — — — — — — — 1,372,769 293,205 5,751 439,767 340,946 1,846 — — — — — — — — 6,712 6,712 Total assets measured at fair value $ 2,463,594 $ 2,598 $ 2,454,284 $ Transfers between levels of the fair value hierarchy are recognized on the actual date of the event or circumstances that caused the transfer, which generally corresponds with the Company’s quarterly valuation process. There were no transfers between any levels during 2023 or 2022. The following table provides a reconciliation of assets and liabilities measured at fair value using significant unobservable inputs (Level 3) on a recurring basis during the years ended December 31, 2023, 2022, and 2021. Had there been any transfer into or out of Level 3 during 2023, 2022, or 2021, the amount included in the “Transfers into (out of) Level 3” column would represent the beginning balance of an item in the period (interim quarter) during which it was transferred (in thousands): Year ended December 31, 2023: Mortgage servicing rights 2022: Mortgage servicing rights 2021: Mortgage servicing rights Beginning Balance Transfers into (out of) Level 3 Change Included in Earnings Issuances Ending Balance $ $ $ 6,712 5,874 5,092 — $ — $ — $ (506) $ 301 $ (872) $ 400 $ 537 $ 1,654 $ 6,606 6,712 5,874 The Company’s method for determining the fair value of mortgage servicing rights is described in Note 1. The key unobservable inputs used in determining the fair value of mortgage servicing rights are mortgage prepayment speeds and the discount rate used to discount cash projected cash flows. Generally, any significant increases in the mortgage prepayment speed and discount rate utilized in the fair value measurement of the mortgage servicing rights will result in a negative fair value adjustments (and decrease in the fair value measurement). Conversely, a decrease in the mortgage prepayment speed and discount rate will result in a positive fair value adjustment (and increase in the fair value measurement). Note 10 contains additional information regarding mortgage servicing rights. The following table present quantitative information about recurring Level 3 fair value measurements at December 31, 2023 and 2022: 101 TriCo Bancshares 2023 10-K December 31, 2023 Mortgage Servicing Rights December 31, 2022 Mortgage Servicing Rights Fair Value (in thousands) $6,606 Valuation Technique Discounted cash flow Unobservable Inputs Constant prepayment rate Range, Weighted Average 6%-13%, 7% Discount rate 10%-14%, 12% $6,712 Discounted cash flow Constant prepayment rate 7%-14%, 8% Discount rate 10%-14%, 12% The tables below present the recorded amount of assets and liabilities measured at fair value on a nonrecurring basis, as of the dates indicated, that had a write-down or an additional allowance provided during the periods indicated. December 31, 2023 Fair value: Individually evaluated loans Real estate owned Total assets measured at fair value December 31, 2022 Fair value: Individually evaluated loans Real estate owned Total assets measured at fair value Total Level 1 Level 2 Level 3 4,175 50 4,225 — — — — $ — — $ Total Level 1 Level 2 Level 3 5,719 311 6,030 — — — — $ — — $ 4,175 50 4,225 5,719 311 6,030 $ $ $ $ The tables below present the gains (losses) resulting from non-recurring fair value adjustments of assets and liabilities for the periods indicated, regardless of whether the asset is still being held at fair value at period end (in thousands): Individually evaluated loans Real estate owned Total losses from non-recurring measurements December 31, 2023 2022 $ $ (4,498) $ (312) (4,810) $ (2,283) 481 (1,802) The individually evaluated loan amount above represents collateral dependent loans with unique risk characteristics that have been adjusted to fair value. When we identify a collateral dependent loan as requiring individual evaluation, we measure the need for credit reserves using the current fair value of the collateral, less selling costs. Depending on the characteristics of a loan, the fair value of collateral is generally estimated by obtaining external appraisals. If we determine that the value of the loan is less than the recorded investment in the loan, we recognize this impairment and adjust the carrying value of the loan to fair value through the allowance for loan and lease losses. The loss represents charge-offs or impairments on collateral dependent loans for fair value adjustments based on the fair value of collateral. The carrying value of loans fully charged-off is zero. The real estate owned amounts above represents impaired real estate that has been adjusted to fair value. Foreclosed assets represent real estate which the Bank has taken control of in partial or full satisfaction of loans. At the time of foreclosure, other real estate owned is recorded at fair value less costs to sell, which becomes the property’s new basis. Any write-downs based on the asset’s fair value at the date of acquisition are charged to the allowance for loan and lease losses. After foreclosure, management periodically performs valuations such that the real estate is carried at the lower of its new cost basis or fair value, net of estimated costs to sell. Fair value adjustments on other real estate owned are recognized within net loss on real estate owned. The loss represents impairments on non-covered other real estate owned for fair value adjustments based on the fair value of the real estate. The Company’s property appraisals are primarily based on the sales comparison approach and income approach methodologies, which consider recent sales of comparable properties, including their income generating characteristics, and then make adjustments to reflect the general assumptions that a market participant would make when analyzing the property for purchase. These adjustments may increase or decrease an appraised value and can vary significantly depending on the location, physical characteristics and income producing potential of each property. Additionally, the quality and volume of market information available at the time of the appraisal can vary from period to 102 TriCo Bancshares 2023 10-K period and cause significant changes to the nature and magnitude of comparable sale adjustments. Given these variations, comparable sale adjustments are generally not a reliable indicator for how fair value will increase or decrease from period to period. Under certain circumstances, management discounts are applied based on specific characteristics of an individual property. The following tables present quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at December 31, 2023 and 2022: December 31, 2023 Individually evaluated loans Fair Value (in thousands) $ 4,175 Real estate owned (Commercial) $ 50 December 31, 2022 Individually evaluated loans Fair Value (in thousands) $ 5,719 Real estate owned (Residential) $ 311 Valuation Technique Unobservable Inputs Sales comparison approach; Income approach Sales comparison approach; Income approach Adjustment for differences between comparable sales; Capitalization rate Adjustment for differences between comparable sales; Capitalization rate Valuation Technique Unobservable Inputs Sales comparison approach; Income approach Sales comparison approach Adjustment for differences between comparable sales; Capitalization rate Adjustment for differences between comparable sales Range, Weighted Average Not meaningful; N/A Not meaningful; N/A Range, Weighted Average Not meaningful; N/A Not meaningful; N/A The estimated fair values of financial instruments that are reported at amortized cost in the Corporation’s consolidated balance sheets, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value, were as follows (in thousands): Financial assets: Level 1 inputs: Cash and due from banks Cash at Federal Reserve and other banks Level 2 inputs: Securities held to maturity Restricted equity securities Level 3 inputs: Loans, net Financial liabilities: Level 2 inputs: Deposits Other borrowings Level 3 inputs: December 31, 2023 December 31, 2022 Carrying Amount Fair Value Carrying Amount Fair Value $ 81,626 $ 81,626 $ 96,323 $ 17,075 17,075 10,907 133,494 17,250 125,126 n/a 160,983 17,250 96,323 10,907 149,938 n/a 6,672,948 6,278,577 6,344,767 6,153,155 7,834,038 7,828,554 8,329,013 8,321,517 632,582 632,582 264,605 264,605 Junior subordinated debt 101,099 95,407 101,040 92,613 Off-balance sheet: Level 3 inputs: Commitments (1) Standby letters of credit (1) Overdraft privilege commitments (1) 103 TriCo Bancshares 2023 10-K Contract Amount Fair Value Contract Amount Fair Value $ 2,225,677 $ 22,257 $ 2,188,560 $ 21,886 38,449 121,539 385 1,215 26,599 126,634 266 1,266 The methods and assumptions used to estimate the fair value of each class of financial instruments not measured at fair value are as follows: Securities held to maturity - This includes mortgage-backed securities issued by government sponsored entities and municipal bonds. Fair value measurement is based upon quoted prices, if available. If quoted prices are not available, fair values are measured using independent pricing models or other model-based valuation techniques such as the present value of future cash flows, adjusted for the security’s credit rating, prepayment assumptions and other factors such as credit loss assumptions. Restricted equity securities - Consists of FHLB stock whereby carrying value approximates fair value. Loans - Loans are generally valued by discounting expected cash flows using market inputs with adjustments based on cohort level assumptions for certain loan types as well as internally developed estimates at a business segment level. Due to the significance of the unobservable market inputs and assumptions, as well as the absence of a liquid secondary market for most loans, these loans are classified as Level 3. Certain loans are measured based on observable market prices sourced from external data providers and classified as Level 2. Nonaccrual loans are written down and reported at their estimated recovery value which approximates their fair value and classified as Level 3. Deposits - The estimated fair value of deposits with no stated maturity, such as demand deposit accounts, money market accounts, and savings accounts was the amount payable on demand at the reporting date. The fair value of time deposits was estimated based on a discounted cash flow technique using Level 3 inputs appropriate to the contractual maturity. Other borrowings - The cash flows were calculated using the contractual features of the advance and then discounted using observable market. These are short-term in nature. Junior subordinated debt - The fair value of structured financings was estimated based on a discounted cash flow technique using observable market interest rates adjusted for estimated spreads. (1) Lending related commitments - The fair value of these commitments, including revolving credit facilities, standby letters of credit and overdrafts are carried at contract value, which approximates fair value but are not actively traded. These instruments generate fees, which approximate those currently charged to originate similar commitments, which are recognized over the term of the commitment period. Note 25 – TriCo Bancshares Condensed Financial Statements (Parent Only) Condensed Balance Sheets Assets Cash and cash equivalents Investment in Tri Counties Bank Other assets Total assets Liabilities and shareholders’ equity Other liabilities Junior subordinated debt Total liabilities Shareholders’ equity: Preferred stock, no par value: 1,000,000 shares authorized, zero issued and outstanding at December 31, 2023 and 2022 Common stock, no par value: authorized 50,000,000 shares; issued and outstanding 33,268,102 and 33,331,513 shares at December 31, 2023 and 2022, respectively Retained earnings Accumulated other comprehensive loss, net Total shareholders’ equity Total liabilities and shareholders’ equity December 31, 2023 December 31, 2022 (In thousands) $ 6,356 $ 7,987 1,253,492 1,138,429 1,872 1,818 $ 1,261,720 $ 1,148,234 $ 939 $ 778 101,099 102,038 101,040 101,818 — — 697,349 615,502 697,448 542,873 (153,169) (193,905) 1,159,682 1,046,416 $ 1,261,720 $ 1,148,234 104 TriCo Bancshares 2023 10-K Condensed Statements of Income Net interest expense Administration expense Loss before equity in net income of Tri Counties Bank Equity in net income of Tri Counties Bank: Distributed Undistributed Income tax benefit Net income Condensed Statements of Comprehensive Income (Loss) Net income Other comprehensive income (loss), net of tax: Year Ended December 31, 2023 2022 2021 (In thousands) $ (6,878) $ (4,385) $ (2,128) (1,096) (7,974) 52,805 70,202 2,357 (816) (5,201) 64,188 64,896 1,536 (985) (3,113) 31,571 88,289 908 $ 117,390 $ 125,419 $ 117,655 Year Ended December 31, 2023 2022 2021 (In thousands) $ 117,390 $ 125,419 $ 117,655 Increase (decrease) in unrealized gains on available for sale securities arising during the period 41,365 (204,376) (13,788) Change in minimum pension liability Change in joint beneficiary agreement liability Other comprehensive income (loss) Comprehensive income (loss) Condensed Statements of Cash Flows Operating activities: Net income Adjustments to reconcile net income to net cash provided by operating activities: Undistributed equity in earnings of Tri Counties Bank Equity compensation vesting expense Net change in other assets and liabilities Net cash provided by operating activities Investing activities: Sales or maturities of investments Financing activities: Issuance of common stock through option exercise Repurchase of common stock Cash dividends paid — common Net cash used for financing activities Net change in cash and cash equivalents Cash and cash equivalents at beginning of year Cash and cash equivalents at end of year 105 TriCo Bancshares 2023 10-K (263) (366) 8,101 1,389 2,602 (113) 40,736 (194,886) (11,299) $ 158,126 $ (69,467) $ 106,356 Year Ended December 31, 2023 2022 2021 (In thousands) $ 117,390 $ 125,419 $ 117,655 (70,202) (64,896) (88,289) 4,125 (3,959) 47,354 3,869 (3,834) 60,558 2,638 (6,427) 25,577 — 4,234 — 156 (9,240) (39,901) (48,985) (1,631) 7,987 1,190 (27,148) (35,797) (61,755) 3,037 4,950 $ 6,356 $ 7,987 $ 144 (4,344) (29,724) (33,924) (8,347) 13,297 4,950 Note 26 – Regulatory Matters The Company and the Bank are subject to various regulatory capital requirements administered by federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory, and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance-sheet items as calculated under regulatory accounting practices. These capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Quantitative measures established by regulation to ensure capital adequacy require that minimum amounts and ratios of total, Tier 1, and common equity Tier 1capital to risk- weighted assets, and of Tier 1 capital to average assets be maintained. Under applicable capital requirements both the Company and the Bank are required to have a common equity Tier 1 capital ratio of 4.5%, a Tier 1 leverage ratio of 4.0%, a Tier 1 risk-based ratio of 6.0% and a total risk-based ratio of 8.0%. In addition, the Company and the Bank are also required to maintain a capital conservation buffer consisting of common equity Tier 1 capital above 2.5% of minimum risk based capital ratios to avoid restrictions on certain activities including payment of dividends, stock repurchases and discretionary bonuses to executive officers. The additional 2.5% buffer, where applicable, is included in the minimum ratios set forth in the table below. Management believes as of December 31, 2023 and 2022, the Company and Bank meet all capital adequacy requirements to which they are subject. Actual Required for Capital Adequacy Purposes Required to be Considered Well Capitalized Under Prompt Corrective Action Regulations Amount Ratio Amount Ratio Amount Ratio $ 1,196,106 14.73 % $ 852,850 10.50 % N/A N/A $ 1,190,542 14.66 % $ 852,648 10.50 % $ 812,046 10.00 % $ 1,052,063 12.95 % $ 690,402 8.50 % N/A $ 1,088,717 13.41 % $ 690,239 8.50 % $ 649,637 $ 994,907 12.25 % $ 568,566 7.00 % N/A $ 1,088,717 13.41 % $ 568,432 7.00 % $ 527,830 $ 1,052,063 10.75 % $ 391,620 4.00 % N/A $ 1,088,717 11.12 % $ 391,574 4.00 % $ 489,468 N/A 8.00 % N/A 6.50 % N/A 5.00 % Actual Required for Capital Adequacy Purposes Required to be Considered Well Capitalized Under Prompt Corrective Action Regulations Amount Ratio Amount Ratio Amount Ratio $ 1,115,257 14.19 % $ 825,234 10.50 % N/A N/A $ 1,107,941 14.10 % $ 825,039 10.50 % $ 785,751 10.00 % (in thousands) As of December 31, 2023: Total Capital (to Risk Weighted Assets): Consolidated Tri Counties Bank Tier 1 Capital (to Risk Weighted Assets): Consolidated Tri Counties Bank Common equity Tier 1 Capital (to Risk Weighted Assets): Consolidated Tri Counties Bank Tier 1 Capital (to Average Assets): Consolidated Tri Counties Bank (in thousands) As of December 31, 2022: Total Capital (to Risk Weighted Assets): Consolidated Tri Counties Bank Tier 1 Capital (to Risk Weighted Assets): Consolidated Tri Counties Bank $ 974,325 12.40 % $ 668,047 8.50 % N/A $ 1,009,577 12.85 % $ 667,888 8.50 % $ 628,601 Common equity Tier 1 Capital (to Risk Weighted Assets): Consolidated Tri Counties Bank Tier 1 Capital (to Average Assets): Consolidated Tri Counties Bank $ 917,565 11.67 % $ 550,156 7.00 % N/A $ 1,009,577 12.85 % $ 550,026 7.00 % $ 510,738 $ 974,325 10.14 % $ 384,337 4.00 % N/A $ 1,009,577 10.51 % $ 384,146 4.00 % $ 480,183 106 TriCo Bancshares 2023 10-K N/A 8.00 % N/A 6.50 % N/A 5.00 % MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING Management of TriCo Bancshares is responsible for establishing and maintaining effective internal control over financial reporting. Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with U.S. generally accepted accounting principles. Under the supervision and with the participation of management, including the principal executive officer and principal financial officer, the Company conducted an evaluation of the effectiveness of internal control over financial reporting based on the framework in the 2013 Internal Control – Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this evaluation under the framework in the 2013 Internal Control – Integrated Framework, management of the Company has concluded the Company maintained effective internal control over financial reporting, as such term is defined in Securities Exchange Act of 1934 Rules 13a-15(f), as of December 31, 2023. Internal control over financial reporting cannot provide absolute assurance of achieving financial reporting objectives because of its inherent limitations. Internal control over financial reporting is a process that involves human diligence and compliance and is subject to lapses in judgment and breakdowns resulting from human failures. Internal control over financial reporting can also be circumvented by collusion or improper management override. Because of such limitations, there is a risk that material misstatements may not be prevented or detected on a timely basis by internal control over financial reporting. However, these inherent limitations are known features of the financial reporting process. Therefore, it is possible to design into the process safeguards to reduce, though not eliminate, this risk. Management is also responsible for the preparation and fair presentation of the consolidated financial statements and other financial information contained in this report. The accompanying consolidated financial statements were prepared in conformity with U.S. generally accepted accounting principles and include, as necessary, best estimates and judgments by management. In addition to management’s assessment, Moss Adams LLP, an independent registered public accounting firm, has audited the Company’s consolidated financial statements as of and for the year ended December 31, 2023, and the Company’s effectiveness of internal control over financial reporting as of December 31, 2023, dated February 29, 2024, as stated in its report, which is included herein. /s/ Richard P. Smith Richard P. Smith President and Chief Executive Officer /s/ Peter G. Wiese Peter G. Wiese Executive Vice President and Chief Financial Officer February 29, 2024 107 TriCo Bancshares 2023 10-K REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and the Board of Directors of TriCo Bancshares Opinions on the Financial Statements and Internal Control over Financial Reporting We have audited the accompanying consolidated balance sheets of TriCo Bancshares (and subsidiaries) (the “Company”) as of December 31, 2023 and 2022, the related consolidated statements of income, comprehensive income (loss), changes in shareholders’ equity, and cash flows for each of the three years in the period ended December 31, 2023, and the related notes (collectively referred to as the “consolidated financial statements”). We also have audited the Company’s internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the consolidated financial position of the Company as of December 31, 2023 and 2022, and the consolidated results of its operations and its cash flows for each of the three years in the period ended December 31, 2023, in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control - Integrated Framework (2013) issued by COSO. Basis for Opinions The Company’s management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s consolidated financial statements and an opinion on the Company’s internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures to respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions. Definition and Limitations of Internal Control Over Financial Reporting A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. 108 TriCo Bancshares 2023 10-K Critical Audit Matter The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates. Allowance for Credit Losses - Reasonable and Supportable Qualitative Factors As discussed in Note 1 and Note 5 to the consolidated financial statements, the Company’s allowance for credit losses on loans was $121.5 million as of December 31, 2023, and consists of both historical credit loss experience and management’s estimates of current conditions and reasonable and supportable forecasts. The Company’s allowance for credit losses on loans is a valuation account that is deducted from the amortized cost basis of loans to present the net carrying value at the amount expected to be collected on such loans and is a material and complex estimate requiring significant management judgment in the estimation of expected lifetime losses within the loan portfolio at the balance sheet date. We identified the auditing of management’s qualitative forecast factors, which are the most significant components of the reasonable and supportable forecast, as a critical audit matter. In estimating the allowance for credit losses on loans, the Company utilizes relevant information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. Estimation of the lifetime expected credit losses on loans requires significant management judgment, particularly as it relates to the significant forecast components over the forecast period. Auditing these significant management judgments involves especially challenging auditor judgment due to the nature and extent of audit evidence and effort required to address these matters. The primary procedures we performed to address this critical audit matter included: • • • Testing the design, implementation and operating effectiveness of controls relating to management’s calculation of the allowance for credit losses on loans, including controls over the evaluation of the qualitative forecast factors. Evaluating the reasonableness and appropriateness of the estimated qualitative forecast factors utilized by management in forming the reasonable and supportable forecast factors by comparing forecasts to relevant external data, including historical trends. Testing completeness and accuracy of the data used in the determination of forecast factors within the qualitative allowance for credit losses on loans and testing the mathematical accuracy of the calculation of the qualitative allowance for credit losses on loans. /s/ Moss Adams LLP Sacramento, California February 29, 2024 We have served as the Company’s auditor since 2018. 109 TriCo Bancshares 2023 10-K ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE None. ITEM 9A. CONTROLS AND PROCEDURES (a) Evaluation of Disclosure Controls and Procedures As of December 31, 2023, the end of the period covered by this Annual Report on Form 10-K, the Company’s Chief Executive Officer and Chief Financial Officer evaluated the effectiveness of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934). Based upon that evaluation, the Company’s Chief Executive Officer and Chief Financial Officer each concluded that as of December 31, 2023, the Company’s disclosure controls and procedures were effective to ensure that the information required to be disclosed by the Company in this Annual Report on Form 10-K was recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and instructions for Form 10-K. (b) Management’s Report on Internal Control over Financial Reporting and Attestation Report of Registered Public Accounting Firm Management’s report on internal control over financial reporting is set forth on page 107 of this report and is incorporated herein by reference. The effectiveness of the Company’s internal control over financial reporting as of December 31, 2023, has been audited by Moss Adams LLP, an independent registered public accounting firm, as stated in its report, which is set forth on pages 108 - 109 of this report and is incorporated herein by reference. (c) Changes in Internal Control over Financial Reporting No change in the Company’s internal control over financial reporting occurred during the fourth quarter of the year ended December 31, 2023, that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting. ITEM 9B. OTHER INFORMATION All information required to be disclosed in a current report on Form 8-K during the fourth quarter of 2023 was so disclosed. ITEM 9C. DISCLOSURES REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS None 110 TriCo Bancshares 2023 10-K PART III ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE The information required by this Item 10 shall either be incorporated herein by reference from the Company’s Proxy Statement for the 2024 annual meeting of shareholders, which will be filed with the Commission pursuant to Regulation 14A or included in an amendment to this Form 10-K. ITEM 11. EXECUTIVE COMPENSATION Equity Compensation Plans The following table shows shares reserved for issuance for outstanding options, stock appreciation rights and warrants granted under our equity compensation plans as of December 31, 2023. All of our equity compensation plans have been approved by shareholders. Plan category Equity compensation plans not approved by shareholders Equity compensation plans approved by shareholders Total (a) Number of securities to be issued upon exercise of outstanding options, options, warrants and rights (b) Weighted average exercise price of outstanding options, warrants and rights (c) Number of securities remaining available for issuance under future equity compensation plans (excluding securities reflected in column (a)) — $ 7,500 $ 7,500 $ — 23.21 23.21 — 456,222 456,222 The information required by this Item 11 shall either be incorporated herein by reference from the Company’s Proxy Statement for the 2024 annual meeting of shareholders, which will be filed with the Commission pursuant to Regulation 14A or included in an amendment to this Form 10-K. ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS The information required by this Item 12 shall either be incorporated herein by reference from the Company’s Proxy Statement for the 2024 annual meeting of shareholders, which will be filed with the Commission pursuant to Regulation 14A or included in an amendment to this Form 10-K. ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE The information required by this Item 13 shall either be incorporated herein by reference from the Company’s Proxy Statement for the 2024 annual meeting of shareholders, which will be filed with the Commission pursuant to Regulation 14A or included in an amendment to this Form 10-K. ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES The information required by this Item 14 shall either be incorporated herein by reference from the Company’s Proxy Statement for the 2024 annual meeting of shareholders, which will be filed with the Commission pursuant to Regulation 14A or included in an amendment to this Form 10-K. 111 TriCo Bancshares 2023 10-K PART IV ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES (a) Documents filed as part of this report: 1. All Financial Statements. The consolidated financial statements of Registrant are included in Part II, Item 8 of this report, and are incorporated herein by reference. 2. Financial statement schedules. Schedules have been omitted because they are not applicable or are not required under the instructions contained in Regulation S- X or because the information required to be set forth therein is included in the consolidated financial statements or notes thereto at Part II, Item 8 of this report. 3. Exhibits. The exhibit list required by this item is incorporated by reference to the Exhibit Index filed with this report. (b) Exhibits filed: Exhibit No. Exhibit 2.2 2.3 3.1 3.2 4.1 4.2 10.1* 10.2* 10.3* 10.4* 10.5* 10.6* 10.7* 10.8* 10.9* 10.10* 10.11* 10.12* Agreement and Plan of Reorganization dated as of December 11, 2017, by and between TriCo Bancshares and FNB Bancorp (incorporated by reference to Exhibit 2.1 to TriCo’s Current Report on Form 8-K filed on December 11, 2017). Agreement and Plan of Merger and Reorganization dated as of July 27, 2021, by and between TriCo Bancshares and Valley Republic Bancorp (incorporated by reference to Exhibit 2.1 to TriCo’s Current Report on Form 8-K filed on July 27, 2021). Restated Articles of Incorporation (incorporated by reference to Exhibit 3.1 to TriCo’s Current Report on Form 8-K filed on March 17, 2009). Amended and Restated Bylaws of TriCo (incorporated by reference to Exhibit 3.1 to TriCo’s Current Report on Form 8-K filed May 23, 2023). Instruments defining the rights of holders of the long-term debt securities of the TriCo and its subsidiaries are omitted pursuant to section (b)(4)(iii)(A) of Item 601 of Regulation S-K. TriCo hereby agrees to furnish copies of these instruments to the Securities and Exchange Commission upon request. TriCo Bancshares securities registered pursuant to Section 12 of the Securities Exchange Act of 1934 (incorporated by reference to Exhibit 4.2 of TriCo’s Annual Report on Form 10- K for the year ended December 31, 2023). Form of Change of Control Agreement among TriCo, Tri Counties Bank and each of Dan Bailey, Craig Carney, John Fleshood, Peter Wiese and other executives (incorporated by reference to Exhibit 10.2 to TriCo’s Current Report on Form 8- K filed on April 14, 2021). TriCo’s 2009 Equity Incentive Plan, as amended (incorporated by reference to Exhibit 10.2 to TriCo’s Current Report on Form 8-K filed April 3, 2013). Amended and Restated Employment Agreement between TriCo, Tri Counties Savings Bank and Richard Smith dated as of April 12, 2021 (incorporated by reference to Exhibit 10.1 to TriCo’s Current Report on Form 8-K filed April 13, 2021). Tri Counties Bank Executive Deferred Compensation Plan restated April 1, 1992, and January 1, 2005 (incorporated by reference to Exhibit 10.9 to TriCo’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2005). Tri Counties Bank Deferred Compensation Plan for Directors effective January 1, 2005 (incorporated by reference to Exhibit 10.12 to TriCo’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2005). 2005 Tri Counties Bank Deferred Compensation Plan for Executives and Directors effective January 1, 2005 (incorporated by reference to Exhibit 10.11 to TriCo’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2005). The Restated 2005 Tri Counties Bank Deferred Compensation Plan for Executives and Directors (Effective January 1, 2021). Tri Counties Bank Supplemental Retirement Plan for Directors dated September 1, 1987, as restated January 1, 2001, and amended and restated January 1, 2004 (incorporated by reference to Exhibit 10.12 to TriCo’s Quarterly Report on Form 10- Q for the quarter ended June 30, 2004). 2004 TriCo Bancshares Supplemental Retirement Plan for Directors effective January 1, 2004 (incorporated by reference to Exhibit 10.13 to TriCo’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2004). Tri Counties Bank Supplemental Executive Retirement Plan effective September 1, 1987, as amended and restated January 1, 2004 (incorporated by reference to Exhibit 10.14 to TriCo’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2004). 2004 TriCo Bancshares Supplemental Executive Retirement Plan effective January 1, 2004 (incorporated by reference to Exhibit 10.15 to TriCo’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2004). Form of Joint Beneficiary Agreement effective March 31, 2003 between Tri Counties Bank and each of Craig Carney and Richard Smith (incorporated by reference to Exhibit 10.14 to TriCo’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2003). 112 TriCo Bancshares 2023 10-K 10.13* 10.14* 10.15* 10.16* 10.17* 10.18* 10.19* 10.20* 10.21* 10.22* 10.23* 10.24* 10.25* 10.26* 10.27* 21.1 23.1 31.1 31.2 32.1 32.2 97.1 Form of Joint Beneficiary Agreement effective March 31, 2003 between Tri Counties Bank and each of Don Amaral, Craig Compton, John Hasbrook, and Michael Koehnen (incorporated by reference to Exhibit 10.15 to TriCo’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2003). Form of Tri Counties Bank Executive Long Term Care Agreement effective June 10, 2003 between Tri Counties Bank and Craig Carney (incorporated by reference to Exhibit 10.16 to TriCo’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2003). Form of Tri Counties Bank Director Long Term Care Agreement effective June 10, 2003 between Tri Counties Bank and each of Don Amaral, Craig Compton, John Hasbrook, and Michael Koehnen (incorporated by reference to Exhibit 10.17 to TriCo’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2003). Form of Indemnification Agreement between TriCo and its directors and executive officers (incorporated by reference to Exhibit 10.1 to TriCo’s Current Report on Form 8-K filed September 10, 2013). Form of Indemnification Agreement between Tri Counties Bank and its directors and executive officers Form of Stock Option, Stock Appreciation Right, Restricted Stock Unit Award, and Performance Share Award Agreements, and Notice of Grant of Stock Option pursuant to TriCo’s 2009 Equity Incentive Plan (incorporated by reference to Exhibit 10.19 to TriCo’s Annual Report on Form 10-K for the year ended December 31, 2017). TriCo's 2019 Equity Incentive Plan (incorporated by reference to Exhibit 10.26 to TriCo's Annual Report on Form 10-K filed on March 2, 2019). Form of Restricted Stock Unit Agreement and Grant Notice for Non-employee Directors pursuant to TriCo's 2019 Equity Incentive Plan (incorporated by reference to Exhibit 99.1 of TriCo's Quarterly Report on Form 10-Q for the quarter ended June 30, 2019). Form of Restricted Stock Unit Agreement and Grant Notice for Employees pursuant to TriCo's 2019 Equity Incentive Plan (incorporated by reference to Exhibit 99.2 of TriCo's Quarterly Report on Form 10-Q for the quarter ended June 30, 2019). Form of Performance Award Agreement and Grant Notice pursuant to TriCo's 2019 Equity Incentive Plan (incorporated by reference to Exhibit 99.1 of TriCo's Quarterly Report on Form 10-Q for the quarter ended June 30, 2019). Form of Restricted Stock Unit Agreement and Grant Notice for Executives pursuant to TriCo's 2019 Equity Incentive Plan (incorporated by reference to Exhibit 10.26 of TriCo's Annual Report on Form 10-K for the year ended December 31, 2023). Form of Performance Award and Grant Notice for Executives pursuant to TriCo's 2019 Equity Incentive Plan (incorporated by reference to Exhibit 10.27 of TriCo's Annual Report on Form 10-K for the year ended December 31, 2023). Amendment to SERP and Participation Agreement - Richard P. Smith (incorporated by reference to Exhibit 10.1 to TriCo's Current Report on Form 8-K filed December 28, 2022). Amendment to SERP and Participation Agreement - Daniel K. Bailey (incorporated by reference to Exhibit 10.2 to TriCo's Current Report on Form 8-K filed December 28, 2022). Amendment to SERP and Participation Agreement - Craig B. Carney (incorporated by reference to Exhibit 10.3 to TriCo's Current Report on Form 8-K filed December 28, 2022). List of Subsidiaries (incorporated by reference to Exhibit 21.1 of TriCo’s Annual Report on Form 10- K for the year ended December 31, 2023). Consent of Moss Adams LLP, Independent Registered Public Accounting Firm Rule 13a-14(a)/15d-14(a) Certification of CEO Rule 13a-14(a)/15d-14(a) Certification of CFO Section 1350 Certification of CEO** Section 1350 Certification of CFO** TriCo Compensation Clawback Policy 101.INS Inline XBRL Instance Document 101.SCH Inline XBRL Taxonomy Extension Schema Document 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document 104 Cover Page Interactive Data File (embedded within the Inline XBRL document and included in Exhibit 101) * ** Management contract or compensatory plan or arrangement Furnished herewith. This exhibit shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liability of that Section. Such exhibit shall not be deemed incorporated into any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934. (c) Financial statement schedules filed: See Item 15(a)(2) above. 113 TriCo Bancshares 2023 10-K ITEM 16. FORM 10-K SUMMARY None. 114 TriCo Bancshares 2023 10-K SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. Date: February 29, 2024 TRICO BANCSHARES By: /s/ Richard P. Smith Richard P. Smith, President and Chief Executive Officer Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant in the capacities and on the dates indicated. Date: February 29, 2024 /s/ Richard P. Smith Richard P. Smith, Chairman of the Board, President, Chief Executive Officer and Director (Principal Executive Officer) Date: February 29, 2024 /s/ Peter G. Wiese Peter G. Wiese, Executive Vice President and Chief Financial Officer (Principal Financial and Accounting Officer) Date: February 29, 2024 /s/ Kirsten E. Garen Kirsten E. Garen, Director Date: February 29, 2024 /s/ Cory W. Giese Cory W. Giese, Independent Lead Director Date: February 29, 2024 /s/ John S.A. Hasbrook John S.A. Hasbrook, Director Date: February 29, 2024 /s/ Margaret L. Kane Margaret L. Kane, Director Date: February 29, 2024 /s/ Michael W. Koehnen Michael W. Koehnen, Director Date: February 29, 2024 /s/ Anthony L. Leggio Anthony L. Leggio, Director Date: February 29, 2024 /s/ Martin A. Mariani Martin A. Mariani, Director Date: February 29, 2024 /s/ Thomas C. McGraw Thomas C. McGraw, Director Date: February 29, 2024 /s/ Kimberley H. Vogel Kimberley H. Vogel, Director Date: February 29, 2024 /s/ Jon Y. Nakamura Jon Y. Nakamura, Director 115 TriCo Bancshares 2023 10-K [This page intentionally left blank.] 

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