SIERRA BANCORP Commitments Disclosure

14.     COMMITMENTS AND CONTINGENCIES

Letter of Credit

The Company holds two letters of credit with the Federal Home Loan Bank of San Francisco totaling $127.9 million. A $125.0 million letter of credit is pledged to secure public deposits at December 31, 2025 and a $2.9 million standby letter of credit was obtained on behalf of one of our customers to guarantee financial performance. Should the standby letter of credit be drawn upon, the customer would reimburse the Company from an existing line of credit.

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. These financial instruments consist of commitments to extend credit and standby letters of credit. These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the consolidated balance sheet.

The Company’s exposure to credit loss in the event of nonperformance by the other party for commitments to extend credit and letters of credit is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and letters of credit as it does for loans included on the balance sheet.

The following financial instruments represent off-balance-sheet credit risk (dollars in thousands):

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Commitments to extend credit consist primarily of the unused or unfunded portions of the following: home equity lines of credit; commercial real estate construction loans, where disbursements are made over the course of construction; commercial revolving lines of credit; mortgage warehouse lines of credit; unsecured personal lines of credit; and formalized deposit account overdraft lines. Commitments generally have fixed expiration dates 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. Commitments to extend credit are made at both fixed and variable rates of interest as stated in the table above. Standby letters of credit are generally unsecured and are issued by the Company to guarantee the performance of a customer to a third party, while commercial letters of credit represent the Company’s commitment to pay a third party on behalf of a customer upon fulfillment of contractual requirements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers.

Concentration in Real Estate Lending

At December 31, 2025, in management’s judgment, the Company had a concentration of loans secured by real estate. At that date, approximately 72% of the Company’s loans were real estate related. Balances secured by commercial buildings and construction and development loans represented 76% of all real estate loans, while loans secured by non-construction residential properties accounted for 20%, and loans secured by farmland were 4% of real estate loans. Although management believes the loans within these concentrations have no more than the normal risk of collectability, a decline in the performance of the economy in general or a decline in real estate values in the Company’s primary market areas, in particular, could have an adverse impact on collectability.

Concentration by Geographic Location

The Company extends commercial, real estate mortgage, real estate construction, and consumer loans to customers primarily in the South Central San Joaquin Valley of California, specifically Tulare, Fresno, Kern, Kings, and Madera counties; and the Coastal counties of San Luis Obispo, Ventura, and Santa Barbara. The ability of a substantial portion of the Company’s customers to honor their contracts is dependent on the economy in these areas. Although the Company’s loan portfolio is diversified, there is a relationship in those regions between the local agricultural economy and the economic performance of loans made to non-agricultural customers.

Legal Matters

In the ordinary course of our business, the Company is subject to legal proceedings and claims which we believe are incidental to the operation of our business. The outcome of such legal actions and the timing of ultimate resolution

are inherently difficult to predict. Given the nature, scope, and complexity of the extensive legal and regulatory landscape applicable to banking (including laws and regulations governing consumer protection, fair lending, privacy, information security, and anti-money laundering and anti-terrorism laws), we like all banking organizations, are subject to heightened legal and regulatory compliance and litigation risk.

The Company will establish litigation and legal reserves, where appropriate, in accordance with FASB guidance over loss contingencies (ASC 450). Upon consultation with legal counsel and based on information currently available to us, management does not expect the amount of any resulting liability, in addition to amounts already accrued and taking into consideration insurance which may be applicable, to have a material adverse effect on the consolidated financial position or results of operations of the Company. The outcome of litigation and other legal and regulatory matters is inherently uncertain, however, and it is possible that one or more of the legal or regulatory matters currently pending or threatened could have a material adverse effect on our liquidity, consolidated financial position, and/or results of operations.