COASTAL FINANCIAL CORP

COASTAL FINANCIAL CORPORATION AND SUBSIDIARIES NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 1 -Description of Business and Summary of Significant Accounting Policies

Nature of operations - Coastal Financial Corporation (“Corporation” or “Company”) is a registered bank holding company whose wholly owned subsidiaries are Coastal Community Bank (“Bank”) and Arlington Olympic LLC (“LLC”). The Company is a Washington state corporation that was organized in 2003. The Bank was incorporated and commenced operations in 1997 and is a Washington state-chartered commercial bank that is a member bank of the Federal Reserve system. The LLC was formed in 2019 and owns the Company’s Arlington branch site, which the Bank leases from the LLC.

The Company operates through the Bank and is headquartered in Everett, Washington, which by population is the largest city in Snohomish County. The Company’s business is conducted through three reportable segments: The community bank, CCBX and treasury & administration. The primary focus of the community bank is on providing a wide range of banking products and services to consumers and small to medium sized businesses in the broader Puget Sound region in the state of Washington and through the Internet and our mobile banking application. We currently operate 14 full-service banking locations, 12 of which are located in Snohomish County, where we are the largest community bank by deposit market share, and two of which are located in neighboring counties (one in King County and one in Island County). We also have a loan production office which is located in King county. The CCBX segment provides banking as a service (“BaaS”) that allows digital financial service providers, companies and brands to offer their customers banking services. The CCBX segment had a total of 30 partners, at varying stages as of March 31, 2026. The treasury & administration segment includes investments, debt and other reporting items that are not specific to the community bank or CCBX segments.

The Bank’s deposits are insured in whole or in part by the Federal Deposit Insurance Corporation (“FDIC”). The community bank’s loans and deposits are primarily within the greater Puget Sound region, while CCBX loans and deposits are dependent upon the partners' markets. The Bank’s primary funding source is deposits from customers. The Bank is subject to regulation and supervision by the Board of Governors of the Federal Reserve System and the Washington State Department of Financial Institutions Division of Banks. The Federal Reserve also has regulatory and supervisory authority over the Company.

Financial statement presentation - The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim reporting requirements and with instructions to Form 10-Q and Article 10 of Regulation S-X, and therefore do not include all the information and notes included in the annual consolidated financial statements in conformity with GAAP. These interim condensed consolidated financial statements and accompanying notes should be read in conjunction with the Company’s audited consolidated financial statements and accompanying notes included in the Company’s Annual report on Form 10-K as filed with the U.S. Securities and Exchange Commission (“SEC”) on February 27, 2026. Operating results for the three months ended March 31, 2026 are not necessarily indicative of the results that may be expected for the entire year.

Amounts presented in the consolidated financial statements and footnote tables are rounded and presented in thousands of dollars except per-share amounts, which are presented in dollars. In the narrative footnote discussion, amounts are rounded to thousands and presented in dollars.

In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying consolidated financial statements have been made. These adjustments include normal and recurring accruals considered necessary for a fair and accurate presentation.

Principles of consolidation - The consolidated financial statements include the accounts of the Company, the Bank and the LLC. All significant intercompany accounts have been eliminated in consolidation.

Estimates - The preparation of financial statements in conformity with GAAP 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. Management believes that its critical accounting policies include determining the allowance for credit losses, the valuation of the Company’s deferred tax assets, and fair value of financial instruments. Actual results could differ significantly from those estimates.

Subsequent Events - The Company has evaluated events and transactions subsequent to March 31, 2026 for potential recognition or disclosure. Other than as described below, there were no material subsequent events requiring recognition or disclosure in the consolidated financial statements.

Subsequent to March 31, 2026, the Bank entered into a non-binding term sheet with Evolve Bank & Trust (“Evolve”) to explore the potential acquisition of certain banking-as-a-service programs currently overseen and operated by Evolve. The Bank intends to conduct due diligence and, together with Evolve, may negotiate definitive agreements with respect to selected programs. Any potential transaction would be subject to, among other things, the execution of definitive agreements, receipt of required regulatory approvals, and satisfaction of customary closing conditions.

Reclassifications -Certain amounts reported in prior quarters' consolidated financial statements may have been reclassified to conform to the current presentation with no effect on stockholders’ equity or net income.

Note 2 -Recent accounting standards

Recent Accounting Guidance

In November 2023, the FASB issued ASU 2023-07, Income Statement—Reporting Comprehensive Income (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires enhanced disclosures about the nature of expenses included in income statement line items to improve transparency and comparability. This ASU is effective for fiscal years beginning after December 15, 2026, and interim periods within those fiscal years, with early adoption permitted. The Company is evaluating the impact of this standard on its disclosures.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which enhances the transparency of income tax disclosures by requiring more detailed information about income tax expense, cash taxes paid, and the effective tax rate reconciliation. This ASU is effective for fiscal years beginning after December 15, 2024, and interim periods within those fiscal years and was implemented by the Company as of the fiscal year ended December 31, 2025. The adoption of ASU 2023-09 did not have a material impact on the Company’s consolidated financial statements but resulted in enhanced income tax disclosures.

In March 2025, the FASB issued ASU 2025-05, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, which simplifies the measurement of expected credit losses for certain financial assets by providing a practical expedient and additional guidance on applying CECL to short-term receivables. This ASU is effective for fiscal years beginning after December 15, 2025, and interim periods within those fiscal years, with early adoption permitted. This standard did not have a material impact on the Company's consolidated financial statements.

In September 2025, the FASB issued ASU 2025-06, Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, which modernizes and clarifies guidance on capitalization of internal-use software costs (including software developed using iterative methods) and related presentation/disclosure considerations. This ASU is effective for annual reporting periods beginning after December 15, 2027, and interim periods within those fiscal years, with early adoption permitted. The Company is evaluating the impact of this standard on its capitalization policies and disclosures.

In November 2025, the FASB issued ASU 2025-08, Financial Instruments—Credit Losses (Topic 326): Purchased Loans, which expands and clarifies acquisition-date accounting for certain purchased loans under CECL, including use of a gross-up approach for specified acquired loans. This ASU is effective for annual reporting periods beginning after December 15, 2026, and interim periods within those fiscal years, with early adoption permitted. The Company is evaluating the impact of this standard on its accounting for acquired loans and related disclosures.

In November 2025, the FASB issued ASU 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements, to clarify and improve the guidance related to interim financial reporting. The ASU enhances the structure and navigability of Topic 270 by consolidating and organizing interim disclosure requirements and clarifying their applicability to entities that issue interim financial statements in accordance with U.S. GAAP. The amendments also introduce a disclosure principle requiring entities to disclose material events and changes that occur after the most recent annual reporting period. The ASU does not significantly expand existing disclosure requirements but is intended to improve transparency and consistency in interim reporting. This ASU is effective for interim reporting periods in fiscal years beginning after December 15, 2027, and early adoption is permitted. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements.

Note 3 -Investment Securities

The following tables summarize the amortized cost, fair value, and allowance for credit losses and the corresponding amounts of gross unrealized gains and losses of available-for-sale securities recognized in accumulated other comprehensive income (loss) and gross unrecognized gains and losses of held-to-maturity securities:

Accrued interest on available-for-sale securities was less than $1,000 at March 31, 2026 and December 31, 2025, and accrued interest on held-to-maturity securities was $210,000 and $219,000 at March 31, 2026 and December 31, 2025, respectively. Accrued interest on securities is excluded from the balances in the preceding tables of securities receivable, and is included in accrued interest receivable on the Company's consolidated balance sheets.

The amortized cost and fair value of debt securities at March 31, 2026, by contractual maturity, are shown below. Currently, the portfolio consists of mortgage-backed securities and collateralized mortgage obligations which are not due at a single maturity date. Expected maturities will differ from contractual maturities because issuers or the underlying borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

Investments in debt securities with an amortized cost of $42.2 million and $44.3 million were pledged for borrowing lines at March 31, 2026 and December 31, 2025, respectively.

During the three months ended March 31, 2026, no securities matured andno securities were purchased.

There wereno sales of securities during the three months ended March 31, 2026 or 2025.

There were nine securities with a $308,000 unrealized loss as of March 31, 2026. There were eight securities with a $215,000 unrealized loss as of December 31, 2025. The following tables show the investments’ gross unrealized losses and fair values, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position for which an allowance for credit losses has not been recorded:

Management has evaluated the above securities and does not believe that any individual unrealized loss as of March 31, 2026 will be recognized into income. Unrealized losses have not been recognized into income because management does not intend to sell and does not expect it will be required to sell the investments. The decline in fair value is largely due to changes in market conditions and interest rates, rather than credit quality. The fair value is expected to recover as the underlying securities in the portfolio approach maturity date and market conditions improve. Management believes there is a high probability of collecting all contractual amounts due, because all of the securities in the portfolio are backed by government agencies or government sponsored enterprises. However, a recovery in value may not occur for some time, if at all, and may be delayed for greater than the aone year time horizon or perhaps even until maturity. Based on management's analysis no allowance for credit losses was required on these securities.

Note 4 -Loans and Allowance for Credit Losses

Loans Held for Sale

During the three months ended March 31, 2026, $3.33 billion in CCBX loans were transferred to loans held for sale, with $3.28 billion in loans sold, $2.63 billion of which was new activity on previously sold credit card receivables. These loans were sold back to partners at par. The Company sells CCBX loans to manage loan portfolio size by partner and by loan category. Partner loan limits are established and documented in the relevant partner agreement. There were $124.0 million loans held for sale as of March 31, 2026 and $71.2 million loans held for sale as of December 31, 2025.

Loans Held for Investment

The composition of the loan portfolio is as follows as of the periods indicated:

Accrued interest on loans, which is excluded from the balances in the preceding table of loans receivable, was $18.3 million and $17.9 million at March 31, 2026 and December 31, 2025, respectively, and was included in accrued interest receivable on the Company's consolidated balance sheets. Accrued interest on loans is net of an allowance of $627,000 and $616,000 at March 31, 2026 and December 31, 2025, respectively.

Included in commercial and industrial loans as of March 31, 2026 and December 31, 2025, is $176.4 million and $210.5 million, respectively in capital call lines, provided to venture capital firms through one of our BaaS clients. These loans are secured by the capital call rights and are individually underwritten to the Bank’s credit standards by our BaaS client and the underwriting is reviewed by the Bank on every line/loan.

Consumer and other loans includes overdrafts of $27.5 million and $16.9 million at March 31, 2026 and December 31, 2025, respectively. Community bank overdrafts were $9,000 and $10,000 at March 31, 2026 and December 31, 2025, respectively and CCBX overdrafts were $27.4 million and $16.8 million at March 31, 2026 and December 31, 2025, respectively.

The Company, through the Bank, purchased loans from CCBX partners, at par, through agreements with those CCBX partners, and those loans had a remaining balance of $129.4 million as of March 31, 2026 and $134.9 million as of December 31, 2025. As of March 31, 2026, $127.6 million is included in consumer and other loans and $1.8 million is included in commercial and industrial loans, compared to $132.6 million in consumer and other loans and $2.3 million in commercial and industrial loans as of December 31, 2025.

The Company, through the Bank, at times purchases individual loans at fair value as of the acquisition date. The Company held purchased loans with remaining balances that totaled $4.4 million as of March 31, 2026 and December 31,

2025. Unamortized premiums on these loans totaled $83,000 and $84,000 as of March 31, 2026 and December 31, 2025, respectively, and are amortized into interest income over the life of the loans. These loans are included in the applicable loan category depending upon the collateral and purpose of the individual loan.

The Company, through the Bank, has purchased participation loans with remaining balances totaling $28.5 million and $26.9 million as of March 31, 2026 and December 31, 2025, respectively. These loans are included in the applicable loan category depending upon the collateral and purpose of the individual loan and are underwritten to the Bank's credit standards.

The balance of SBA and United States Department of Agriculture ("USDA") loans and participations sold and serviced for others totaled $2.3 million and $2.5 million at March 31, 2026 and December 31, 2025, respectively.

The gross balance of Main Street Lending Program (“MSLP”) loans participated and serviced for others, totaled $23.1 million at March 31, 2026 and December 31, 2025, with $1.2 million in MSLP loans on the balance sheet and included in commercial and industrial loans at March 31, 2026 and December 31, 2025. Servicing is retained on the gross balance.

The Company has pledged loans totaling $891.4 million at March 31, 2026 and $895.5 million at December 31, 2025, for borrowing lines at the FHLB and FRB. Loans are pledged to increase and maintain the borrowing capacity of the Bank for liquidity management purposes.

The following is a summary of the Company’s loan portfolio segments:

Commercial and industrial loans –Commercial and industrial loans are secured by business assets including inventory, receivables and machinery and equipment of businesses located generally in the Company’s primary market area and capital calls on venture and investment funds. Loan types include revolving lines of credit, term loans, and loans secured by liquid collateral such as cash deposits or marketable securities. Also included in commercial and industrial loans are loans to other financial institutions. Additionally, the Company issues letters of credit on behalf of its customers. Risk arises primarily due to the difference between expected and actual cash flows of the borrowers. In addition, the recoverability of the Company’s investment in these loans is also dependent on other factors primarily dictated by the type of collateral securing these loans. The fair value of the collateral securing these loans may fluctuate as market conditions change. In the case of loans secured by accounts receivable, the recovery of the Company’s investment is dependent upon the borrower’s ability to collect amounts due from its customers.

As of March 31, 2026, $235.6 million in community bank loans are included in commercial and industrial loans, compared to $224.4 million at December 31, 2025.

As of March 31, 2026, $198.2 million in loans originated through CCBX partners are included in commercial and industrial loans, compared to $229.6 million at December 31, 2025.

As of March 31, 2026, $176.4 million in CCBX capital call lines are included in commercial and industrial loans compared to $210.5 million at December 31, 2025. Capital call lines are provided to venture capital firms. These loans are secured by the capital call rights and are individually underwritten to the Bank’s credit standards and the underwriting is reviewed by the Bank on every line/loan.

Also included in commercial and industrial loans are $21.8 million in unsecured loans originated through CCBX partners as of March 31, 2026, compared to $19.2 million as of December 31, 2025.

Construction, land and land development loans –The Company originates loans for the construction of 1-4 family, multifamily, and CRE properties in the Company’s market area. Construction loans are considered to have higher risks due to construction completion and timing risk, the ultimate repayment being sensitive to interest rate changes, government regulation of real property and the availability of long-term financing. Additionally, economic conditions may impact the Company’s ability to recover its investment in construction loans, as adverse economic conditions may negatively impact the real estate market, which could affect the borrower’s ability to complete and sell the project. Additionally, the fair value of the underlying collateral may fluctuate as market conditions change. The Company occasionally originates land loans for the purpose of facilitating the ultimate construction of a home or commercial building. The primary risks include the borrower’s ability to pay and the inability of the Company to recover its investment due to a material decline in the fair value of the underlying collateral.

As of March 31, 2026, $234.9 million in community bank loans are included in construction, land and land development loans, compared to $222.1 million at December 31, 2025.

Residential real estate loans –Residential real estate includes various types of loans for which the Company holds real property as collateral. Included in this segment are first and second lien single family loans, occasionally purchased by the Company to diversify its loan portfolio, and rental portfolios secured by one-to-four family homes. The primary risks of residential real estate loans include the borrower’s inability to pay, material decreases in the value of the collateral, and significant increases in interest rates which may make the loan unprofitable.

As of March 31, 2026, $266.0 million in loans originated through CCBX partners are included in residential real estate loans, compared to $264.1 million at December 31, 2025. These home equity lines of credit are secured by residential real estate and are accessed by using a credit card. Home equity lines of credit are classified as residential real estate per regulatory guidelines.

Commercial real estate (includes owner occupied and non-owner occupied) loans –Commercial real estate loans include various types of loans for which the Company holds real property as collateral.

As of March 31, 2026, $1.30 billion in community bank loans are included in commercial real estate loans, compared to $1.29 billion at December 31, 2025.

We have commercial real estate loans totaling $375.5 million that are collateralized by owner-occupied real-estate and $552.0 million that are collateralized by non-owner-occupied real estate, as well as $359.1 million of multi-family residential loans and $14.0 million of farmland loans, as of March 31, 2026, compared to $374.7 million that are collateralized by owner-occupied real-estate and $531.1 million that are collateralized by non-owner-occupied real estate, as well as $367.9 million of multi-family residential loans and $12.2 million of farmland loans as of December 31, 2025. The primary risks of commercial real estate loans include the borrower’s inability to pay, material decreases in the value of the collateralized real estate and significant increases in interest rates, which may make the real estate loan unprofitable. Commercial real estate loans may be more adversely affected by conditions in the real estate markets or in the general economy.

Consumer and other loans –The community bank originates a limited number of consumer loans, generally for banking customers only, which consist primarily of lines of credit, saving account secured loans, and auto loans. CCBX originates consumer loans including credit cards, consumer term loans and secured and unsecured lines of credit. This loan category also includes overdrafts. Repayment of these loans is dependent on the borrower’s ability to pay and the fair value of the underlying collateral.

As of March 31, 2026, $11.6 million in community bank loans are included in consumer and other loans, compared to $14.1 million at December 31, 2025.

As of March 31, 2026, $1.42 billion in CCBX loans are included in consumer and other loans, compared to $1.31 billion at December 31, 2025.

The following chart breaks out our consumer loan portfolio by segment and type of loan as of March 31, 2026. The largest portion of our consumer portfolio is comprised of CCBX installment loans and credit card loans. These loans are further divided to show the total secured and unsecured amounts in each of these categories. The average overall outstanding consumer loan balance is small at $700.

The following chart breaks out our consumer loan portfolio by segment and type of loan as of December 31, 2025. The largest portion of our consumer portfolio is comprised of CCBX installment loans and credit card loans. These loans are further divided to show the total secured and unsecured amounts in each of these categories. The average overall outstanding consumer loan balance is small at $809.

Past Due and Nonaccrual Loans

The following tables illustrate an age analysis of past due loans as of the dates indicated:

There were $35.2 million in CCBX loans past due 90 days or more and still accruing interest as of March 31, 2026, and $33.1 million as of December 31, 2025. This is attributed to loans originated through CCBX lending partners which continue to accrue interest up to 180 days past due. As of March 31, 2026 and December 31, 2025, $34.2 million and $30.9 million, respectively of loans past due 90 days or more and still accruing interest are covered by credit enhancements provided by our CCBX partners that protect the Bank against losses.

The accrual of interest on community bank loans is discontinued when, in management’s opinion, the borrower may be unable to meet payments as they become due or when they are 90 days past due as to either principal or interest, unless they are well secured and in the process of collection. Installment/closed-end, and revolving/open-end consumer loans originated through CCBX lending partners typically continue to accrue interest until 120 and 180 days past due, respectively and an allowance is recorded through provision expense for these expected losses. Certain CCBX partners employ collection practices that place specific loans on nonaccrual status to enhance collectability. As of March 31, 2026, $22.3 million of these nonaccrual CCBX loans were less than 90 days past due, compared to $20.3 million as of December 31, 2025. For installment/closed-end and revolving/open-end consumer loans originated through CCBX lending partners with balances outstanding beyond 120 days and 180 days past due, respectively, principal and capitalized interest outstanding is charged off against the allowance and accrued interest outstanding is reversed against interest income. These consumer loans are reported as nonperforming/substandard,90 days or more days past due and still accruing.

When loans are placed on nonaccrual status, all accrued interest is reversed from current period earnings. Payments received on nonaccrual loans are generally applied as a reduction to the loan principal balance. If the likelihood of further loss is removed, the Company will recognize interest on a cash basis only. Loans may be returned to accruing status if the Company believes that all remaining principal and interest is fully collectible and there has been at leastsix months of sustained repayment performance since the loan was placed on nonaccrual.

An analysis of nonaccrual loans by category consisted of the following at the periods indicated:

In some circumstances, the Company modifies loans in response to borrower financial difficulty, and generally provides for a temporary modification of loan repayment terms. In order for a modified loan to be considered for accrual status, the loan’s collateral coverage generally will be greater than or equal to 100% of the loan balance, the loan is current on payments, and the borrower must either prefund an interest reserve or demonstrate the ability to make payments from a verified source of cash flow for an extended period of time, usually at leastsix months in duration.

There were no modified loans for community bank borrowers experiencing financial difficulty at March 31, 2026 and December 31, 2025.

The following tables present the CCBX loans at March 31, 2026 and December 31, 2025 that were both experiencing financial difficulty and were modified in the twelve months previous to the dates presented by class and by type of modification. The percentage of the loans that were modified to borrowers in financial distress as compared to the total CCBX loans of each class is also presented below.

The Company has committed to lend additional amounts totaling $23,000 to the borrowers included in the table above as of March 31, 2026.

The performance of loans modified is monitored to understand the effectiveness of the modification efforts. The following tables present the performance of such loans that have been modified in the last 12 months previous to the dates presented:

The following tables present the financial effect of the loan modifications presented above to borrowers experiencing financial difficulty for the preceding 12 months as of the dates indicated:

The following tables present the total of loans that had a payment default during the preceding 12 months and which were modified for borrowers experiencing financial difficulty in the twelve months prior to that default.

Upon the Company’s determination that a modified loan (or portion of a loan) has subsequently been deemed uncollectible, the loan (or a portion of the loan) is charged-off against the allowance for credit losses. Therefore, the loan balance is reduced by the uncollectible amount and the allowance for credit losses is adjusted by the same amount.

Credit Quality and Credit Risk

Federal regulations require that the Company periodically evaluate the risks inherent in its loan portfolio. In addition, the Company’s regulatory agencies have authority to identify problem loans and, if appropriate, require them to be reclassified. The Company establishes loan grades for loans at the origination of the loan. Changes to community bank loan grades are considered at the time new information about the performance of a loan becomes available, including the receipt of updated financial information from the borrower and after loan reviews. For consumer loans, the Bank follows the Federal Financial Institutions Examination Council’s Uniform Retail Credit Classification and Account Management Policy for subsequent classification in the event of payment delinquencies or default. Typically, an individual loan grade will not be changed from the prior period unless there is a specific indication of credit deterioration or improvement. Credit deterioration is evidenced by delinquency, direct communications with the borrower or other borrower information that becomes known to management. Credit improvements are evidenced by known facts regarding the borrower or the collateral property. The Company classifies some loans as Watch or Other Loans Especially Mentioned (“OLEM”). Loans classified as Watch are performing assets but have elements of risk that require more monitoring than other performing loans and are reported in the OLEM column in the following table. Loans classified as OLEM are assets that continue to perform but have shown deterioration in credit quality and require close monitoring. There are three classifications for problem loans: Substandard, Doubtful, and Loss. Substandard loans have one or more defined weaknesses and are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Revolving (open-ended loans, such as credit cards) and installment (closed end) consumer loans originated through CCBX partners typically continue to accrue interest until they are charged-off at 120 days past due for installment loans (primarily unsecured loans to consumers) and 180 days past due for revolving loans (primarily credit cards) and are classified as substandard once they are 90 days past due. CCBX partners may place certain loans on nonaccrual status prior to achieving these past due timelines. Doubtful loans have the weaknesses of loans classified as Substandard, with additional characteristics that suggest the weaknesses make collection or recovery in full after liquidation of collateral questionable on the basis of currently existing facts, conditions, and values. There is a high possibility of loss in loans classified as Doubtful. A loan classified as Loss is considered uncollectible and of such little value that continued classification of the credit as a loan is not warranted. If a loan or a portion thereof is classified as Loss, it must be charged-off, meaning the amount of the loss is charged against the allowance for credit losses, thereby reducing that reserve.

Management considers the guidance in ASC 310-20 when determining whether a modification, extension, or renewal of loan constitutes a current period origination.

The following tables show the risk category of community bank loans by year of origination for the periods indicated, based on the most recent analysis performed as of each period end:

The Company considers the performance of the CCBX loan portfolio and its impact on the allowance for credit losses. For CCBX loans, the Company also evaluates credit quality based on the aging status of the loan, which was previously presented, and by payment activity. The following tables present the loans in CCBX based on payment activity for the periods indicated:

Allowance for Credit Losses ("ACL")

CCBX loans have a higher level of expected losses than our community bank loans, which is reflected in the factors for the allowance for credit losses. Agreements with our CCBX partners provide for a credit enhancement which protects the Bank by reimbursing most losses. In accordance with accounting guidance, we estimate and record a provision for expected losses for these CCBX loans, reclassified negative deposit accounts and accrued interest receivable on CCBX loans, while actual losses are recognized as incurred. When the provision for CCBX credit losses and provision for unfunded commitments are recorded, a credit enhancement asset is also recorded on the balance sheet through noninterest income (BaaS credit enhancements). The credit enhancement asset is reduced when credit enhancement payments are received from the CCBX partner or taken from the partner's cash reserve account. CCBX partners provide for credit enhancements that provide protection to the Bank from credit and fraud losses by reimbursing the Bank for the losses. If the partner is unable to fulfill its contracted obligations then the Bank could be exposed to the loss of the reimbursement and credit enhancement income. In accordance with the program agreement for one CCBX partner, the Company is responsible for credit losses on approximately 5% of a $324.0 million loan portfolio that are without credit enhancement reimbursements. At March 31, 2026,5% of this portfolio represented $22.0 million in loans. The partner is responsible for reimbursing credit losses on approximately 95% of this portfolio and for fraud losses on 100% of this portfolio. The Company earns 100% of the interest income on the aforementioned $22.0 million of loans.

The following tables summarize the allocation of the ACL, as well as the activity in the ACL attributed to various segments in the loan portfolio, as of and for the three months ended March 31, 2026 and for the three months ended March 31, 2025:

There was a provision recapture for unfunded commitments of $1.3 million for the three months ended March 31, 2026, compared to a provision for unfunded commitments of $613,000 for the three months ended March 31, 2025. There was a provision for accrued interest receivable on CCBX loans of $11,000 for the three months ended March 31, 2026, compared to $784,000 for the three months ended March 31, 2025, and a provision for accounts receivable of $252,000 for the months ended March 31, 2026 withno such provision for the three months ended March 31, 2025.

The following tables present the collateral dependent loans, which are individually evaluated to determine expected credit losses, and the related ACL allocated to these loans as of the dates indicated:

Note 5 -Deposits

The composition of consolidated deposits consisted of the following at the periods indicated:

The following table presents the maturity distribution of time deposits as of March 31, 2026:

Included in total deposits is $462.5 million in reciprocal deposit accounts as of March 31, 2026, compared to $460.3 million at December 31, 2025, which provides our customers with fully insured deposits through an exchange of deposits with other financial institutions.

Note 6 -Leases

The Company has committed to rent premises and equipment used in business operations under non-cancelable operating and finance leases and determines if an arrangement meets the definition of a lease upon inception.

Operating and finance lease right-of-use (“ROU”) assets represent a right to use an underlying asset for the contractual lease term. Lease liabilities represent an obligation to make lease payments arising from the lease. A lease ROU asset and lease liability will be recognized for any new leases at the commencement of the new lease.

The Company’s leases do not provide an implicit interest rate, therefore the Company used its incremental collateralized borrowing rates commensurate with the underlying lease terms to determine the present value of operating and finance lease liabilities. The weighted average discount rate as of March 31, 2026 was 4.00% for operating leases and 4.75% for finance leases and is based off the discount rate at the time the lease is originated or renewed.

The Company’s operating lease agreements contain both lease and non-lease components, which are generally accounted for separately. The Company’s lease agreements do not contain any residual value guarantees.

Leases with terms of 12 months or less are not included in ROU assets and lease liabilities recorded in the Company’s consolidated balance sheet. Operating lease terms include options to extend when it is reasonably certain that the Company will exercise such options, determined on a lease-by-lease basis. At March 31, 2026, lease expiration dates ranged from 1 year to 19 years, with additional renewal options on certain leases typically ranging from 12 months to 10 years. At March 31, 2026, the weighted average remaining lease term inclusive of renewal options that the Company is reasonably certain to renew for the Company’s operating leases was 7.2 years. The weighted average remaining lease term for the Company's finance lease wassix months. The Company had zero operating leases that had not yet commenced as of March 31, 2026.

Rental expense for operating leases is recognized on a straight-line basis over the lease term and amounted to $350,000 for the three months ended March 31, 2026 and $291,000 for the three months ended March 31, 2025. Variable lease components, such as inflation adjustments, are expensed as incurred and not included in ROU assets and operating lease liabilities.

Amortization expense for finance leases is recognized on a straight-line basis over the lease term and amounted to $9,000 for each of the three months ended March 31, 2026 and 2025. Interest on finance leases was $1,000 for each of the three months ended March 31, 2026 and 2025.

The following table presents the minimum annual lease payments under the terms of these leases, inclusive of renewal options that the Company is reasonably certain to renew, at March 31, 2026:

The following table presents the components of total lease expense, including finance lease costs and operating cash flows for the three months ended March 31, 2026 and 2025:

(1)Included in net occupancy expense and in the Condensed Consolidated Statements of Income (unaudited).

(2)Included in other expense in the Condensed Consolidated Statements of Income (unaudited).

(3)Included in interest on borrowed funds Condensed Consolidated Statements of Income (unaudited).

Note 7 -Stock-Based Compensation

Stock Options and Restricted Stock

The 2018 Coastal Financial Corporation Omnibus Plan (the "2018 Plan") authorizes the Company to grant awards, including but not limited to, stock options, restricted stock units, and restricted stock awards, to eligible employees, directors or individuals that provide service to the Company, up to an aggregate of 500,000 shares of common stock. On May 24, 2021, the Company’s shareholders approved the First Amendment to the 2018 Plan, which increased the authorized plan shares by 600,000. On May 28, 2025, the Company's shareholders approved the Second Amendment to the 2018 Plan which increased the authorized plan shares by 600,000. The 2018 Plan replaced the 2006 Plan for new awards. Existing awards will vest under the terms granted andno further awards will be granted under these prior plans. Shares available to be granted under the 2018 plan were 654,230 at March 31, 2026.

Stock Option Awards

The fair value of each option award is estimated on the date of grant using the Black-Scholes option pricing model. Expected volatilities are based on historical volatility of the Company’s stock and other factors. The Company uses the vesting term and contractual life to determine the expected life. The risk-free interest rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant. Compensation expense related to unvested stock option awards is reversed at date of forfeiture.

There wereno new stock options granted in the three months ended March 31, 2026 and 2025.

A summary of stock option activity under the 2018 Plan and 2006 Plan during the three months ended March 31, 2026:

The total intrinsic value (which is the amount by which the stock price at the date of exercise exceeds the exercise price) of options exercised during the three months ended March 31, 2026 was $4.0 million. The total intrinsic value of options exercised during the three months ended March 31, 2025 was $1.8 million.

As of March 31, 2026, there was $240,000 of total unrecognized compensation cost related to nonvested stock options granted under the 2018 Plan and 2006 Plan. Total unrecognized compensation costs are adjusted for unvested forfeitures. The Company expects to recognize that cost over a remaining weighted-average period of approximately 2.1 years. Compensation expense recorded related to stock options was $145,000 for the three months ended March 31, 2026 and $54,000 for the three months ended March 31, 2025.

Restricted Stock Units

In the first quarter of 2026, the Company granted 48,977 restricted stock units ("RSUs") under the 2018 Plan to employees, which vest ratably over 4 years.

RSUs provide for an interest in Company common stock to the recipient, the underlying stock is not issued until certain conditions are met. Vesting requirements include time-based, performance-based, or market-based conditions. Recipients of RSUs do not pay any cash consideration to the Company for the units and the holders of the restricted units do not have voting rights. The fair value of time-based and performance-based units is equal to the fair market value of the Company’s common stock on the grant date. The fair value of market-based units is estimated on the grant date using the Monte Carlo simulation model. Compensation expense is recognized over the applicable vesting period of the awards. RSUs are nonparticipating securities.

As of March 31, 2026, there was $20.2 million of total unrecognized compensation cost related to nonvested RSUs. The Company expects to recognize that cost over the remaining weighted-average vesting period of approximately 3.1 years. Compensation expense related to RSUs was $1.6 million for the three months ended March 31, 2026 and $2.3 million for the three months ended March 31, 2025. The total grant-date fair value of RSUs that vested during the three months ended March 31, 2026 and March 31, 2025 was $2.8 million and $2.4 million, respectively.

A summary of the Company’s nonvested RSUs at March 31, 2026 and changes during the three month period is presented below:

Restricted Stock Awards

Employees

There wereno restricted stock awards outstanding for employees as of March 31, 2026. The fair value of restricted stock awards is equal to the fair value of the Company’s stock at the date of grant. Compensation expense is recognized over the vesting period that the awards are based. Restricted stock awards are participating securities.

As of March 31, 2026, there wasno unrecognized compensation cost related to nonvested restricted stock awards. Compensation expense recorded related to restricted stock awards was $0 for the three months ended March 31, 2026 and $2,000 for the three months ended March 31, 2025.

Director’s Stock Compensation

Under the 2018 Plan, effective May 2024, eligible directors are granted stock with a total market value of approximately $85,000, and the Board Chair is granted stock with a total market value of approximately $125,000. Committee chairs receive additional stock in an amount that varies depending upon the nature and frequency of the committee meetings. The audit committee chair receives additional stock with a market value of approximately $15,000, non-financial risk and compensation committee chairs receive additional stock with a market value of approximately $12,500, and all other committee chairs receive additional stock with a market value of approximately $10,000. Stock is granted as of each annual meeting date and vest one day prior to the next annual meeting date. During the vesting period, the grants are considered participating securities.

As of March 31, 2026, there was $133,000 of total unrecognized compensation expense related to director restricted stock awards which the Company expects to recognize over the remaining average vesting period of approximatelytwo months. Director compensation expense recorded related to the 2018 Plan totaled $217,000 for the three months ended March 31, 2026 and $180,000 for the three months ended March 31, 2025.

A summary of the Company’s nonvested RSAs at March 31, 2026 and changes during the three-month period is presented below:

Note 8 -Fair Value Measurements

The following tables present estimated fair values of the Company’s financial instruments as of the period indicated, whether or not recognized or recorded in the consolidated balance sheets at the period indicated:

The Company measures and discloses certain assets and liabilities at fair value. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (that is, not a forced liquidation or distressed sale). GAAP establishes a consistent framework for measuring fair value and disclosure requirements about fair value measurements. Among other things, the accounting standard requires the reporting entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s estimates for market assumptions. These two types of inputs create the following fair value hierarchy:

•Level 1 – Quoted prices in active markets for identical instruments. An active market is a market in which transactions occur with sufficient frequency and volume to provide pricing information on an ongoing basis. A quoted price in an active market provides the most reliable evidence of fair value and shall be used to measure fair value whenever available.

•Level 2 – Observable inputs other than Level 1 including quoted prices in active markets for similar instruments, quoted prices in less active markets for identical or similar instruments, or other observable inputs that can be corroborated by observable market data.

•Level 3 – Unobservable inputs supported by little or no market activity for financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation; also includes observable inputs from nonbinding single dealer quotes not corroborated by observable market data.

The estimated fair value amounts of financial instruments have been determined by the Company using available market information and appropriate valuation methodologies. However, considerable judgment is required to interpret data to develop the estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts the Company could realize at a future date. The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts. In addition, reasonable comparability between financial institutions may not be likely due to the wide range of permitted valuation techniques and numerous estimates that must be made given the absence of active secondary markets for certain financial instruments. This lack of uniform valuation methodologies also introduces a greater degree of subjectivity to these estimated fair values.

Items measured at fair value on a recurring basis – The following fair value hierarchy table presents information about the Company’s assets that are measured at fair value on a recurring basis at the dates indicated:

The following methods were used to estimate the fair value of the class of financial instruments above:

Investment securities - The fair value of securities is based on quoted market prices, pricing models, quoted prices of similar securities, independent pricing sources, and discounted cash flows.

Limitations: The fair value estimates presented herein are based on pertinent information available to management as of March 31, 2026 and December 31, 2025. The factors used in the fair values estimates are subject to change subsequent to the dates the fair value estimates are completed, therefore, current estimates of fair value may differ significantly from the amounts presented herein.

Items measured at Level 3 fair value on a nonrecurring basis – The following table presents financial assets and liabilities measured at fair value on a nonrecurring basis that are classified within Level 3 of the fair value hierarchy at the dates indicated:

The amounts disclosed above represent the fair values at the time the nonrecurring fair value measurements were made, and not necessarily the fair value as of the dates reported on.

Collateral dependent loans - Fair values for individually evaluated collateral dependent loans are estimated using the fair value of the collateral less selling costs if the loan results in a Level 3 classification. Individually evaluated loan amounts are initially valued at the lower of cost or fair value. Individually evaluated loans carried at fair value generally receive specific allocations of the allowance for credit losses. For collateral dependent real estate loans, fair value is commonly based on recent real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. Non-real estate collateral may be valued using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and management’s expertise and knowledge of the client and client’s business, resulting in a Level 3 fair value classification. Individually evaluated loans are evaluated on a quarterly basis for additional credit losses and adjusted accordingly. The estimated fair values of financial instruments disclosed above follow the guidance in ASU 2016-01 which prescribes an “exit price” approach in estimating and disclosing fair value of financial instruments incorporating discounts for credit, liquidity, and marketability factors. Valuation is measured based on the fair value of the underlying collateral or the discounted cash expected future cash flows. Subsequent changes in the value of loans are included within the provision for credit losses on loans in the same manner in which it initially was recognized or as a reduction in the provision that would otherwise be reported. Loans are evaluated quarterly to determine if valuation adjustments should be recorded. The need for valuation adjustments arises when observable market prices or current appraised values of collateral indicate a shortfall in collateral value compared to current carrying values of the related loan. If the Company determines that the value of the individually evaluated loan is less than the carrying value of the loan, the Company either establishes a reserve as a specific component of the allowance for credit losses or charges off that amount. These valuation adjustments are considered nonrecurring fair value adjustments.

Equity securities – The Company measures equity securities without readily determinable fair values at cost less impairment (if any), plus or minus observable price changes from an identical or similar investment of the same issuer, with price changes recognized in earnings.

Equity securities without readily determinable fair values

The following table presents the carrying value of equity securities without readily determinable fair values, as of March 31, 2026, with adjustments recorded during the periods presented for those securities with observable price changes, if applicable. These equity securities are included in other investments on the balance sheet.

•The Company had a $1.8 million and $2.2 million equity interest in a specialized bank technology company as of the quarters ended March 31, 2026 and 2025, respectively.

•The Company had a $350,000 equity interest in a technology company as of the quarters ended March 31, 2026 and 2025.

•The Company had a $500,000 equity interest in financial technology company as of the quarter ended March 31, 2026. This was a new equity investment, so there wasno equity interest at March 31, 2025.

•The Company had a $42,000 and $47,000 equity interest in a technology company as of the quarters ended March 31, 2026 and 2025, respectively.

The following table provides a description of the valuation technique, unobservable inputs, and qualitative information about the unobservable inputs for the Company’s assets and liabilities classified as Level 3 and measured at fair value on a nonrecurring basis at the date indicated:

Note 9 -Earnings Per Common Share

The following is a computation of basic and diluted earnings per common share at the periods indicated:

Under the two-class method, earnings available to common shareholders for the period are allocated between common shareholders and participating securities according to dividends declared (or accumulated) and participation rights in undistributed earnings, however the difference in the two-class method was not significant.

Note 10 –Segment Reporting

As defined in ASC 280, Segment Reporting, an operating segment is a component of an enterprise that engages in business activities from which it may earn revenues and incur expenses, whose operating results are regularly reviewed by the enterprise’s chief operating decision makers (“CODM”) to make decisions about resources to be allocated to the segment and assess its performance, and for which discrete financial information is available. We evaluate performance based on classifications within accounting and reporting systems, which provides line of business results. This system uses various techniques to assign balance sheet and income statement amounts to the business segments, including allocations of income and expense. A primary objective of this measurement system and related internal financial reporting practices are to produce consistent results that reflect the underlying financial impact of the segments on the Company and to provide a basis of support for strategic decision making. The accounting policies applicable to our segments are those that apply to our preparation of the accompanying Consolidated Financial Statements. Based on these criteria, we have identified three segments: the community bank, CCBX, and treasury & administration. The Executive Leadership Team, which includes the CEO, Presidents, CFO and other key executive members, which the Company has designated as the CODMs, evaluates the financial performance of the Company’s segments by evaluating interest income and expense, noninterest income and significant expenses. The community bank segment includes all community banking activities. A primary focus of the community bank is on providing a wide range of banking products and services to consumers and small to medium sized businesses in the broader Puget Sound region in the state of Washington and through the Internet and our mobile banking application. We currently operate 14 full-service banking locations,12 of which are located in Snohomish County, where we are the largest community bank by deposit market share, and two of which are located in neighboring counties (one in King County andone in Island County). We also have a loan production office which is located in King county. The CCBX segment provides BaaS that allows digital financial service providers, companies and brands to offer their customers banking services. The CCBX segment has 30 partners as of March 31, 2026. The treasury & administration segment includes investments, debt and other reporting items that are not specific to the community bank or CCBX segments.

The management accounting policies and processes utilized in compiling segment financial information are highly subjective and, unlike financial accounting, are not based on authoritative guidance similar to GAAP. As a result, reported segments and the financial information of the reported segments are not necessarily comparable with similar information reported by other financial institutions. Additionally, because of the interrelationships of the various segments, the information presented is not indicative of how the segments would perform if they operated as independent entities. Changes in management structure or allocation methodologies and procedures may result in future changes to previously reported segment financial data. Furthermore, changes in management structure or allocation methodologies and procedures may result in changes in reported segment financial data. The Company continues to evaluate its methodology on allocating items to the Company’s various segments to support strategic business decisions by the Company’s executive leadership. Income and expenses that are specific to a segment are directly posted to each segment. Additionally, certain indirect expenses are allocated to each segment utilizing various metrics, such as number of employees, utilization of space, and allocations based on loan and deposit balances. We have implemented a transfer pricing process that credits or charges the community bank and CCBX segments with intrabank interest income or expense for the difference in average loans and average deposits, with the treasury & administration segment as the offset for those entries.

Summarized financial information concerning the Company's reportable segments and the reconciliation to the consolidated financial results is shown in the following tables for the periods indicated: