WINTRUST FINANCIAL CORP

CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(1)Basis of Presentation

The interim consolidated financial statements of Wintrust Financial Corporation and its subsidiaries (collectively, “Wintrust” or the “Company”) presented herein are unaudited, but in the opinion of management, reflect all necessary adjustments of a normal or recurring nature for a fair presentation of results as of the dates and for the periods covered by the interim consolidated financial statements.

The accompanying interim consolidated financial statements are unaudited and do not include information or footnotes necessary for a complete presentation of financial condition, results of operations or cash flows in accordance with U.S. generally accepted accounting principles (“GAAP”). The interim unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 (“2025 Form 10-K”). Operating results reported for the period are not necessarily indicative of the results which may be expected for the entire year. Reclassifications of certain prior period amounts have been made to conform to the current period presentation.

The preparation of the financial statements requires management to make estimates, assumptions and judgments that affect the reported amounts of assets and liabilities. Management believes that the estimates made are reasonable; however, changes in estimates may be required if economic or other conditions develop differently from management’s expectations. Certain policies and accounting principles inherently have a greater reliance on the use of estimates, assumptions and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Management views critical accounting policies to be those which are highly dependent on subjective or complex judgments, estimates and assumptions, and where changes in those estimates and assumptions could have a significant impact on the financial statements. Management currently views the determination of the allowance for credit losses, estimations of fair value, and the valuation and accounting for derivative instruments, as the accounting areas that require the most subjective and complex judgments, and as such could be most subject to revision as new information becomes available. Descriptions of the Company’s significant accounting policies are included in Note (1) “Summary of Significant Accounting Policies” of the 2025 Form 10-K. In preparation of these financial statements, subsequent events were evaluated through the time the financial statements were issued. Financial statements are considered issued when they are widely distributed to all shareholders and other financial statement users or filed with the SEC.

(2)Recent Accounting Developments

Disaggregation of Income Statement Expenses

In November 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2024-03, “Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses,” which requires public business entities to disclose additional information about specific expense categories including employee compensation, depreciation, intangible asset amortization, etc., as well as qualitative descriptions of certain expenses, in the notes to the financial statements. This guidance is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. The guidance is to be applied either prospectively or retrospectively. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Induced Conversions of Convertible Debt Instruments

In November 2024, the FASB issued ASU No. 2024-04, “Debt – Debt with Conversion and Other Options (Subtopic 470-20): Induced Conversions of Convertible Debt Instruments” to clarify the requirements for determining whether certain settlements of convertible debt instruments should be accounted for as an induced conversion. The Company adopted ASU No. 2024-04 as of January 1, 2026. Adoption of this standard did not impact the Company’s consolidated financial statements.

Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity

In May 2025, the FASB issued ASU No. 2025-03, “Business Combinations (Topic 805) and Consolidation (Topic 810): Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity” which requires an entity involved in an acquisition transaction affected by primarily exchanging equity interests when the legal acquirer is a variable interest entity that meets the definition of a business, to consider specific factors when determining which entity is the accounting acquirer. This guidance is effective for fiscal years beginning after December 15, 2026, including interim periods therein, and is to be applied on a prospective basis to any acquisition transaction that occurs after the initial application date. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Measurement of Credit Losses for Accounts Receivable and Contract Assets

In July 2025, the FASB issued ASU No. 2025-05, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets” which provides public business entities with a practical expedient—and private companies an accounting policy election—when estimating expected credit losses for current accounts receivable and current contract assets arising from transactions accounted for under Accounting Standards Codification (“ASC”) Topic 606. In developing reasonable and supportable forecasts—if an entity elects the practical expedient—it assumes that current conditions as of the balance sheet date do not change for the remaining life of the assets in scope. The Company adopted ASU No. 2025-05 as of January 1, 2026. Adoption of this standard did not impact the Company’s consolidated financial statements as the Company did not elect the practical expedient.

Targeted Improvements to the Accounting for Internal-Use Software

In September 2025, the FASB issued ASU No. 2025-06, “Intangibles – Goodwill and Other Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software” which removes all references to prescriptive and sequential software development stages, instead requiring capitalization of software costs when management has authorized and committed to funding the software project, and it is probable that the project will be completed and the software will be used to perform the function needed. This guidance is effective for fiscal years beginning after December 15, 2027, including interim periods therein, and can be applied either prospectively, retrospectively, or through a modified transition approach. Early adoption is permitted at the beginning of an annual reporting period. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Derivatives Scope Refinements & Scope Clarification for Share-Based Noncash Consideration

In September 2025, the FASB issued ASU No. 2025-07, “Derivatives and Hedging (Topic 815) and Revenue from Contracts with Customers (Topic 606): Derivatives Scope Refinements and Scope Clarification for Share-Based Noncash Consideration from a Customer in a Revenue Contract” which covers two separate issues. Issue 1 adds a scope exception to exclude from derivative accounting non-exchange-traded contracts with underlyings linked to the occurrence or nonoccurrence of an event. Issue 2 clarifies that entities should apply the guidance in ASC 606—on noncash consideration—to a contract with share-based noncash consideration from a customer for the transfer of goods or services. This guidance is effective for fiscal years beginning after December 15, 2026, including interim periods therein, and can be applied either on a prospective or modified retrospective basis. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Credit Losses - Purchased Loans

In November 2025, the FASB issued ASU No. 2025-08, “Financial Instruments - Credit Losses (Topic 326): Purchased Loans” which expands the population of acquired financial assets subject to the gross-up approach under Topic 326. Loans—excluding credit cards—acquired without credit deterioration and deemed “seasoned” are purchased seasoned loans and accounted for using the gross-up approach at acquisition. The Company early adopted ASU No. 2025-08 as of January 1, 2026. Adoption of this standard did not impact the Company’s consolidated financial statements.

Hedge Accounting Improvements

In November 2025, the FASB issued ASU No. 2025-09, “Derivatives and Hedging (Topic 815): Hedge Accounting Improvements” which clarifies certain aspects of the guidance on hedge accounting and addresses several incremental hedge accounting issues arising from the global reference rate reform initiative. For public business entities, this guidance is effective for fiscal years beginning after December 15, 2026, including interim periods therein, and should be applied on a prospective basis for all hedging relationships. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Interim Reporting Scope Improvements

In December 2025, the FASB issued ASU No. 2025-11, “Interim Reporting (Topic 270): Narrow-Scope Improvements” which clarifies interim disclosure requirements and the applicability of Topic 270, resulting in a comprehensive list of interim disclosures required by GAAP. For public business entities, this guidance is effective for fiscal years beginning after December 15, 2027, including interim periods therein, and can be applied either on a prospective or retrospective basis. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

(3)Cash and Cash Equivalents

For purposes of the Consolidated Statements of Cash Flows, the Company considers cash and cash equivalents to include cash on hand, cash items in the process of collection, non-interest bearing amounts due from correspondent banks, federal funds sold and securities purchased under resale agreements with original maturities of three months or less. These items are included within the Company’s Consolidated Statements of Condition as cash and due from banks, and federal funds sold and securities purchased under resale agreements.

(4)Investment Securities

The following tables are a summary of the investment securities portfolios as of the dates shown:

Equity securities without readily determinable fair values totaled $71.7 million as of September 30, 2026. Equity securities without readily determinable fair values are included as part of accrued interest receivable and other assets in the Company’s Consolidated Statements of Condition. The Company monitors its equity investments without readily determinable fair values to identify potential transactions that may indicate an observable price change in orderly transactions for the identical or a similar investment of the same issuer, requiring adjustment to its carrying amount. During the three and nine months ended September 30, 2026, the Company recordedno upward or downward adjustments related to such observable price changes. During the three months ended September 30, 2025, the Company recordedno adjustment related to such observable price changes. During the nine months ended September 30, 2025, the Company recordedno upward adjustment and a downward adjustment of $20,000 related to such observable price changes. The Company conducts a quarterly assessment of its equity securities without readily determinable fair values to determine whether impairment exists in such securities, considering, among other factors, the nature of the securities, financial condition of the issuer and expected future cash flows. During the three and nine months ended September 30, 2026, the Company recorded $558,000 of impairment of equity securities without readily determinable fair values. During the three and nine months ended September 30, 2025, the Company recorded $570,000 and $1.6 million of impairment of equity securities without readily determinable fair values.

The following table presents the portion of the Company’s available-for-sale investment securities portfolios that have gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at September 30, 2026:

The Company conducts a regular assessment of its investment securities to determine whether securities are experiencing credit losses. Factors for consideration include the nature of the securities, credit ratings or financial condition of the issuer, the extent of the unrealized loss, expected cash flows, market conditions and the Company’s ability to hold the securities through the anticipated recovery period.

The Company does not consider available-for-sale securities with unrealized losses at September 30, 2026 to be experiencing credit losses and recognized no resulting allowance for credit losses for such individually assessed credit losses. The Company does not intend to sell these investments and it is more likely than not that the Company will not be required to sell these investments before recovery of the amortized cost bases, which may be the maturity dates of the securities. The unrealized losses within each category have occurred as a result of changes in interest rates, market spreads and market conditions subsequent to purchase. Available-for-sale securities with continuous unrealized losses existing for more than twelve months at September 30, 2026 were primarily mortgage-backed securities with unrealized losses due to increased market rates subsequent to the date the securities were purchased.

See Note (6) “Allowance for Credit Losses” in Item 1 of this report for further discussion regarding any credit losses associated with held-to-maturity securities at September 30, 2026.

The following table provides information as to the amount of gross gains and losses, adjustments and impairment on investment securities recognized in earnings and proceeds received through the sale or call of investment securities:

The amortized cost and fair value of available-for-sale and held-to-maturity investment securities as of September 30, 2026, December 31, 2025 and September 30, 2025, by contractual maturity, are shown in the following table. Contractual maturities may differ from actual maturities as borrowers may have the right to call or repay obligations with or without call or prepayment penalties. Mortgage-backed securities are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:

Securities having a carrying value of $9.3 billion at September 30, 2026 as well as securities having a carrying value of $8.6 billion and $8.0 billion at December 31, 2025 and September 30, 2025, respectively, were pledged as collateral for public deposits, trust deposits, Federal Home Loan Bank (“FHLB”) advances, Federal Reserve Bank (“FRB”) discount window, securities sold under repurchase agreements and derivatives. At September 30, 2026, there wereno securities of a single issuer, other than U.S. government-sponsored agency securities, which exceeded 10% of shareholders’ equity.

(5)Loans

The following table shows the Company’s loan portfolio by category as of the dates shown:

The Company’s loan portfolio is generally comprised of loans to consumers and small to medium-sized businesses, which, for the commercial and commercial real estate portfolios, are located primarily within the geographic market areas that the banks serve. Various niche lending businesses, including franchise lending and insurance agency lending, operate on a national level. The premium finance receivables portfolios are made to customers throughout the United States and Canada. The Company strives to maintain a loan portfolio that is diverse in terms of loan type, industry, borrower, and geographic concentrations. Such diversification reduces the exposure to economic downturns that may occur in different segments of the economy or in different industries.

Certain premium finance receivables are recorded net of unearned income. The unearned income portions of such premium finance receivables were $274.7 million at September 30, 2026, $268.6 million at December 31, 2025 and $272.0 million at September 30, 2025.

Total loans, excluding purchased credit deteriorated (“PCD”) loans, include net deferred loan fees and costs and fair value purchase accounting adjustments totaling $106.6 million at September 30, 2026, $77.9 million at December 31, 2025 and $76.5 million at September 30, 2025.

It is the policy of the Company to review each prospective credit in order to determine the appropriateness and, when required, the adequacy of security or collateral necessary to obtain when making a loan. The type of collateral, when required, will vary from liquid assets to real estate. The Company seeks to ensure access to collateral, in the event of default, through adherence to state lending laws and the Company’s credit monitoring procedures.

(6)Allowance for Credit Losses

In accordance with ASC 326, the Company is required to measure the allowance for credit losses of financial assets with similar risk characteristics on a collective or pooled basis. In considering the segmentation of financial assets measured at amortized cost into pools, the Company considered various risk characteristics in its analysis. Generally, the segmentation utilized represents the level at which the Company develops and documents its systematic methodology to determine the allowance for credit losses for the financial assets held at amortized cost, specifically the Company's loan portfolio and debt securities classified as held-to-maturity. Descriptions of the Company’s loan portfolio segments and major debt security types are included in Note (5) “Allowance for Credit Losses” of the 2025 Form 10-K.

In accordance with ASC 326, the Company elected to not measure an allowance for credit losses on accrued interest. As such accrued interest is written off in a timely manner when deemed uncollectible. Any such write-off of accrued interest will reverse previously recognized interest income. In addition, the Company elected to not include accrued interest within presentation and disclosures of the carrying amount of financial assets held at amortized cost. This election is applicable to the various disclosures included within the Company's financial statements. Accrued interest related to financial assets held at amortized cost is included within accrued interest receivable and other assets within the Company's Consolidated Statements of Condition and totaled $343.3 million at September 30, 2026, $312.2 million at December 31, 2025, and $342.4 million at September 30, 2025.

The tables below show the aging of the Company’s loan portfolio by the segmentation noted above at September 30, 2026, December 31, 2025 and September 30, 2025:

(1)Early buy-out loans are insured or guaranteed by the Federal Housing Administration (FHA) or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

(1)Early buy-out loans are insured or guaranteed by the Federal Housing Administration (FHA) or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

(1)Early buy-out loans are insured or guaranteed by the Federal Housing Administration (FHA) or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

Credit Quality Indicators

Credit quality indicators, specifically the Company's internal risk rating systems, reflect how the Company monitors credit losses and represents factors used by the Company when measuring the allowance for credit losses. Descriptions of the Company’s credit quality indicators by financial asset are included in Note (5) “Allowance for Credit Losses” of the 2025 Form 10-K.

The table below shows the Company’s loan portfolio by credit quality indicator and year of origination at September 30, 2026:

(1)For premium finance receivables - life, the year of origination represents when the borrower’s master loan agreement was initially established.

Held-to-maturity debt securities

The Company conducts an assessment of its investment securities, including those classified as held-to-maturity, at the time of purchase and on at least an annual basis to ensure such investment securities remain within appropriate levels of risk and continue to perform satisfactorily in fulfilling its obligations. The Company considers, among other factors, the nature of the securities and credit ratings or financial condition of the issuer. If available, the Company obtains a credit rating for issuers from a Nationally Recognized Statistical Rating Organization (“NRSRO”) for consideration. If no such rating is available for an issuer, the Company performs an internal rating based on the scale utilized within the loan portfolio. For purposes of the table below, the Company has converted any issuer rating from an NRSRO into the Company’s internal ratings based on Investment Policy and review by the Company’s management.

Measurement of Allowance for Credit Losses

The Company's allowance for credit losses consists of the allowance for loan losses, the allowance for unfunded commitment losses and the allowance for held-to-maturity debt security losses. In accordance with ASC 326, the Company measures the allowance for credit losses at the time of origination or purchase of a financial asset, representing an estimate of lifetime expected credit losses on the related asset. When developing its estimate, the Company considers available information relevant to assessing the collectability of cash flows, from both internal and external sources. Historical credit loss experience is one input in the estimation process as well as inputs relevant to current conditions and reasonable and supportable forecasts. In considering past events, the Company considers the relevance, or lack thereof, of historical information due to changes in such things as financial asset underwriting or collection practices, and changes in portfolio mix due to changing business plans and strategies. In considering current conditions and forecasts, the Company considers both the current economic environment and the forecasted direction of the economic environment with emphasis on those factors deemed relevant to or driving changes in expected credit losses. As significant judgment is required, the review of the appropriateness of the allowance for credit losses is performed quarterly by various committees with participation by the Company's executive management.

The allowance for credit losses is measured on a collective or pooled basis when similar risk characteristics exist, based upon the segmentation discussed above. The Company utilizes modeling methodologies that estimate lifetime credit loss rates on each pool. These methodologies include estimating the probability of default and loss given default on the commercial and commercial real estate segments, using the weighted-average remaining maturity methodology for the residential real estate, home equity, and consumer segments, and utilizing an assumption-based approach focusing on historical loss rates for the premium finance receivables segments. Historical credit loss history is adjusted for reasonable and supportable forecasts developed by the Company on a quantitative or qualitative basis and incorporates third party economic forecasts. Reasonable and supportable forecasts consider the macroeconomic factors that are most relevant to evaluating and predicting expected credit losses in the Company's financial assets. Currently, the Company utilizes an eight quarter forecast period using a single macroeconomic scenario provided by a third party and reviewed for potential adjustments within the Company's governance structure. For periods beyond the ability to develop reasonable and supportable forecasts, the Company reverts to historical loss rates at an input level, straight-line over a four quarter reversion period. Expected credit losses are measured over the contractual term of the financial asset with consideration of expected prepayments. Expected extensions, renewals or modifications of the financial asset are considered when the expected extension, renewal or modification is contained within the existing agreement and is not unconditionally cancelable. The methodologies discussed above are applied to both current asset balances on the Company’s Consolidated Statements of Condition and off-balance sheet commitments (i.e. unfunded lending-related commitments).

Assets that do not share similar risk characteristics with a pool are assessed for the allowance for credit losses on an individual basis. These typically include assets experiencing financial difficulties, including assets rated as substandard non-accrual and doubtful. If foreclosure is probable or the asset is considered collateral-dependent, expected credit losses are measured based upon the fair value of the underlying collateral adjusted for selling costs, if appropriate. Underlying collateral across the Company's segments consist primarily of real estate, land and construction assets as well as general business assets of the borrower. As of September 30, 2026, excluding loans carried at fair value, substandard non-accrual loans totaling $62.0 million in carrying balance had no related allowance for credit losses.

The Company does not measure an allowance for credit losses on accrued interest receivable balances because these balances are written off in a timely manner as a reduction to interest income when assets are placed on non-accrual status.

Loan portfolios

A summary of activity in the allowance for credit losses, specifically for the loan portfolio (i.e. allowance for loan losses and allowance for unfunded commitment losses), for the three and nine months ended September 30, 2026 and September 30, 2025 is as follows:

For the three and nine months ended September 30, 2026, the Company recognized approximately $25.9 million and $78.7 million of provision for credit losses, respectively, related to loans and lending agreements. The provision for each period was primarily the result of losses experienced in the Commercial and Premium Finance Receivables portfolios, growth across various segments, and qualitative overlays related to the uncertainty of future performance of the economy, which was offset by an improved forecast related to CRE Price Index. Net charge-offs in the three and nine month periods ended September 30, 2026, totaled $21.0 million and $52.9 million, respectively.

Held-to-maturity debt securities

The allowance for credit losses on the Company’s held-to-maturity debt securities is presented as a reduction to the amortized cost basis of held-to-maturity securities on the Company's Consolidated Statements of Condition. For the three and nine month periods ended September 30, 2026, the Company recognized approximately $(7,000) and $(47,000), respectively, of provision for credit losses related to held-to-maturity securities. At September 30, 2026, the Company did not identify any held-to-maturity debt securities within its portfolio that would require a charge-off.

Loan Modifications to Borrowers Experiencing Financial Difficulties

The Company’s approach to restructuring or modifying loans is built on its credit risk rating system, which requires credit management personnel to assign a credit risk rating to each loan. In each case, the loan officer is responsible for recommending a credit risk rating for each loan and ensuring the credit risk ratings are appropriate. These credit risk ratings are then reviewed and approved by the bank’s chief credit officer and/or concurrence credit officer. Credit risk ratings are determined by evaluating a number of factors, including a borrower’s financial strength, cash flow coverage, collateral protection and guarantees. The Company’s credit risk rating scale is one through ten with higher scores indicating higher risk. In the case of loans rated six or worse following modification, the Company’s Managed Assets Division evaluates the loan and the credit risk rating and determines that the loan has been restructured to be reasonably assured of repayment and of performance according to the modified terms and is supported by a current, well-documented credit assessment of the borrower’s financial condition and prospects for repayment under the revised terms. Based on the Company’s credit risk rating system, it considers that borrowers whose credit risk rating is 5 or better are not experiencing financial difficulties.

Restructurings may arise when, due to financial difficulties experienced by the borrower, the Company obtains through physical possession one or more collateral assets in satisfaction of all or part of an existing credit. Once possession is obtained, the Company reclassifies the appropriate portion of the remaining balance of the credit from loans to other real estate owned (“OREO”), which is included within other assets in the Consolidated Statements of Condition. For any residential real estate property collateralizing a consumer mortgage loan, the Company is considered to possess the related collateral only if legal title is obtained upon completion of foreclosure, or the borrower conveys all interest in the residential real estate property to the Company through completion of a deed in lieu of foreclosure or similar legal agreement. At September 30, 2026, the Company hadno foreclosed residential real estate properties included within OREO. Further, the recorded investment in residential mortgage loans secured by residential real estate properties for which foreclosure proceedings are in process totaled $65.5 million and $67.0 million at September 30, 2026 and 2025, respectively.

The tables below present a summary of the period-end balance of loans to borrowers experiencing financial difficulties during the three and nine months ended September 30, 2026 and 2025:

The Company had commitments of $86.6 million and $23.9 million as of September 30, 2026 and September 30, 2025, respectively, to lend additional funds to borrowers experiencing financial difficulty and for whom the Company has modified the terms of loans in the form of principal forgiveness, an interest rate reduction, an other-than insignificant payment delay or a term extension during the periods presented.

The following table presents a summary of all modified loans for borrowers experiencing financial difficulties and such loans that were in payment default under the restructured terms during the respective periods below:

(1)Modified loans considered to be in payment default are over 30 days past due subsequent to the restructuring.

(7)Goodwill and Other Acquisition-Related Intangible Assets

A summary of the Company’s goodwill assets by reporting unit is presented in the following table:

On September 1, 2026, the Company completed its purchase of the guardianship services business that was previously announced. This business had approximately $1.2 billion in assets under management. As a result of the business acquisition, the wealth management reporting unit’s goodwill increased by $7.5 million and the Company also recognized customer relationship intangible assets with an acquisition-date fair value of $26.6 million for total recorded intangibles of $34.1 million on the purchase. In accordance with GAAP, the initial purchase accounting for this business acquisition is not finalized and is therefore subject to change.

The specialty finance reporting unit’s goodwill increased in the first nine months of 2026 as $11.3 million of goodwill was reclassified from the community banking unit related to a line of business reclassification, partially offset by $797,000 of foreign currency translation adjustments related to the prior Canadian acquisitions. The line of business reclassification resulted from the reportable segment aggregation analysis performed following leadership changes occurring in 2026. The movement of this line of business between the two reporting units did not have a significant impact on the valuation of the Company’s reporting units as all reporting units had substantial excess in estimated fair value over the carrying value in the Company’s most recent quantitative assessment of goodwill.

The Company assesses each reporting unit’s goodwill for impairment on at least an annual basis and considers potential indicators of impairment at each reporting date between annual goodwill impairment tests. At October 1, 2025, the Company utilized a qualitative approach for its annual goodwill impairment tests of the community banking, specialty finance and wealth management reporting units and determined that no impairment existed at that time.

At each reporting date between annual goodwill impairment tests, the Company considers potential indicators of impairment. The Company assessed whether events and circumstances resulted in it being more likely than not that the fair value of any reporting unit was less than its carrying value. Potential impairment indicators considered include the condition of the economy and banking industry; government intervention and regulatory updates; the impact of recent events to financial performance and cost factors of the reporting units; performance of the Company’s stock and other relevant events.

At the conclusion of this assessment of all reporting units, the Company determined that as of September 30, 2026, it was more likely than not that the fair value of all reporting units exceeded the respective carrying value of such reporting unit.

A summary of acquisition-related intangible assets as of the dates shown and the expected amortization of finite-lived acquisition-related intangible assets as of September 30, 2026 is as follows:

The core deposit intangibles recognized in connection with the Company’s bank acquisitions are amortized over aten-year period on an accelerated basis. The customer list intangibles recognized in connection with the purchase of life insurance premium finance assets in 2009 are being amortized over an 18-year period on an accelerated basis. The customer list and other intangibles recognized in connection with acquisitions within the wealth management segment are being amortized over a period of up to 15 years on a straight-line or accelerated basis depending on the respective acquisition facts and circumstances. Indefinite-lived intangible assets consist of certain trade and domain names recognized in connection with prior acquisitions. As indefinite-lived intangible assets are not amortized, the Company assesses impairment on at least an annual basis. Total amortization expense associated with finite-lived acquisition-related intangibles totaled approximately $14.6 million and $16.4 million for the nine months ended September 30, 2026 and 2025, respectively.

(8)Mortgage Servicing Rights (“MSRs”)

The following is a summary of the changes in the carrying value of MSRs, accounted for at fair value, for the periods indicated:

The Company recognizes MSR assets upon the sale of residential real estate loans to external third parties when it retains the obligation to service the loans and the servicing fee is more than adequate compensation. MSRs are included in other assets in the Consolidated Statements of Condition. The initial recognition of MSR assets from loans sold with servicing retained and subsequent changes in fair value of all MSRs are recognized inmortgage banking revenue. MSRs are subject to changes in value from actual and expected prepayment of the underlying loans.

The estimation of fair value related to MSRs is partly impacted by the Company exercising its early buyout options (“EBO”) on eligible loans previously sold to the Government National Mortgage Association (“GNMA”). Under such optional repurchase program, financial institutions acting as servicers are allowed to buy back from the securitized loan pool individual delinquent mortgage loans meeting certain criteria for which the institution was the original transferor of such loans. At the option of the servicer and without prior authorization from GNMA, the servicer may repurchase such delinquent loans for an amount equal to the remaining principal balance of the loan. At the time of such repurchase, any MSR value related to such loans is derecognized.

The MSR asset fair value is determined by using a discounted cash flow model that incorporates the objective characteristics of the portfolio as well as subjective valuation parameters that purchasers of servicing would apply to such portfolios sold into the secondary market. The subjective factors include loan prepayment speeds, discount rates, servicing costs and other economic factors. The Company uses a third party to assist in the valuation of MSRs.

Periodically, the Company will purchase mortgage and interest rate derivative contracts in which the Company elects to not designate such derivatives as hedging instruments. These contracts are designed primarily to economically hedge a portion of the fair value adjustments related to the Company’s mortgage servicing rights portfolio. The gain or loss associated with these derivative contracts is included in mortgage banking revenue. For more information regarding these hedges outstanding as of September 30, 2026 and September 30, 2025, see Note (13) “Derivative Financial Instruments” in Item 1 of this report.

(9)Deposits

The following table is a summary of deposits as of the dates shown:

Wealth management deposits represent deposit balances (primarily money market accounts) at the Company’s subsidiary banks from brokerage customers of Wintrust Investments, LLC (“Wintrust Investments”), Chicago Deferred Exchange Company (“CDEC”), and trust and asset management customers of the Company.

(10)FHLB Advances, Other Borrowings and Subordinated Notes

The following table is a summary of FHLB advances, other borrowings and subordinated notes as of the dates shown:

Descriptions of the Company’s FHLB advances, other borrowings, and subordinated notes are included in Note (11) “Federal Home Loan Bank Advances”, Note (12) “Subordinated Notes” and Note (13) “Other Borrowings” of the 2025 Form 10-K.

Notes Payable

Notes payable balances represent the balances on the Company’s credit agreement with certain unaffiliated banks. The term loan facility was paid in full in December 2025. At September 30, 2026, there wasno outstanding principal balance under the revolving credit facility. Borrowings under notes payable are secured by pledges of and first priority perfected security interests in the Company’s equity interest in its bank subsidiaries and contain several restrictive covenants, including the maintenance of various capital adequacy levels, asset quality and profitability ratios, and certain restrictions on dividends and other indebtedness. At September 30, 2026, the Company was in compliance with all such covenants.

Secured Borrowings

The balance of secured borrowings primarily represents a third party Canadian transaction (“Canadian Secured Borrowing”). Under the Canadian Secured Borrowing, the Company, through its subsidiary, First Insurance Funding of Canada (“FIFC Canada”), sells an undivided co-ownership interest in all receivables owed to FIFC Canada to an unrelated third party in exchange for cash payments pursuant to a receivables purchase agreement (“Receivables Purchase Agreement”). On December 15, 2025, the Company entered into the Thirteenth Amending Agreement to the Receivables Purchase Agreement dated as of December 16, 2014. The amended Receivables Purchase Agreement provides for, among other things, an extension of the maturity date to December 15, 2026 and a decrease to the facility limit from C$650 million to C$580 million.

At September 30, 2026, the translated balance of the secured borrowings totaled $340.7 million compared to $408.0 million at December 31, 2025 and $387.9 million at September 30, 2025. The interest rate under the Receivables Purchase Agreement is the Canadian Commercial Paper Rate plus fee rate of 0.775%.

The remaining $14.8 million, $14.1 million and $14.0 million within secured borrowings at September 30, 2026, December 31, 2025 and September 30, 2025, respectively, represent other sold interests in certain loans by the Company that were not considered sales and, as such, related proceeds received are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the various unrelated third parties.

Other Borrowings

Other borrowings represented a promissory note (“Promissory Note”) issued by the Company in June 2017. The Promissory Note was paid in full in March 2026.

Subordinated Notes

At September 30, 2026, the Company had outstanding subordinated notes totaling $298.9 million compared to $298.6 million and $298.5 million at December 31, 2025 and September 30, 2025, respectively. The notes issued in 2019 have a stated interest rate of 4.85% and mature in June 2029.

(11)Junior Subordinated Debentures

The junior subordinated debentures totaled $253.6 million at September 30, 2026, December 31, 2025 and September 30, 2025. At September 30, 2026, the weighted average contractual interest rate on the junior subordinated debentures was 6.40%. Descriptions of the Company’s Junior Subordinated Debentures are included in Note (14) “Junior Subordinated Debentures” in the 2025 Form 10-K.

(12)Segment Information

The Company’s operations consist ofthree primary segments: community banking, specialty finance and wealth management.

Thethree reportable segments are strategic business units that are separately managed as they offer different products and services and have different marketing strategies. In addition, each segment’s customer base has varying characteristics and each segment has a different regulatory environment. While the Company’s management monitors each of thesixteen bank subsidiaries’ operations and profitability separately, these subsidiaries have been aggregated intoone reportable operating segment due to the similarities in products and services, customer base, operations, profitability measures, and economic characteristics.

For purposes of internal segment profitability, management allocates certain intersegment and parent company balances. Management allocates a portion of revenues to the specialty finance segment related to loans and leases originated by the specialty finance segment and sold or assigned to the community banking segment. Similarly, for purposes of analyzing the contribution from the wealth management segment, management allocates a portion of the net interest income earned by the community banking segment on deposit balances of customers of the wealth management segment to the wealth management segment. See Note (9) “Deposits” in Item 1 of this report for more information on these deposits. Finally, expenses incurred at the Wintrust parent company are allocated to each segment based on each segment’s risk-weighted assets.

The segment financial information provided in the following table has been derived from the internal profitability reporting system used by management to monitor and manage the financial performance of the Company. The accounting policies of the segments are substantially similar to those described in Note (1) “Summary of Significant Accounting Policies” in the 2025 Form 10-K.

Our Chief Executive Officer is our chief operating decision maker (“CODM”). The CODM uses income before taxes to review segment performance and allocate resources for each reportable segment. Financial information regarding each significant segment expense outlined below is regularly provided (at least monthly) to the CODM. For community banking and specialty finance segments, ‘Interest expense’ is a significant segment expense. Additionally, for each of thethree reportable segments, ‘Salaries’, ‘Commissions and incentive compensation’ and ‘Benefits’ are significant segment expenses.

The following is a summary of certain operating information for reportable segments:

(1)Other segment expenses include non-interest expense categories such as ‘Software & Equipment’, ‘Data processing’, ‘Advertising and Marketing’, ‘FDIC Insurance’, and ‘Occupancy’. See “Non-Interest Expense” under Management’s Discussion and Analysis of Financial Condition and Results of Operations in Item 2 of this Form 10-Q for further discussion on non-interest expense.

(1)Other segment expenses include non-interest expense categories such as ‘Software & Equipment’, ‘Data processing’, ‘Advertising and Marketing’, ‘FDIC Insurance’, and ‘Occupancy’. See “Non-Interest Expense” under Management’s Discussion and Analysis of Financial Condition and Results of Operations in Item 2 of this Form 10-Q for further discussion on non-interest expense.

(13)Derivative Financial Instruments

The Company primarily enters into derivative financial instruments as part of its strategy to manage its exposure to changes in interest rates. Derivative instruments represent contracts between parties that result in one party delivering cash to the other party based on a notional amount and an underlying term (such as a rate, security price, price index or commodity price) as specified in the contract. The amount of cash delivered from one party to the other is determined based on the interaction of the notional amount of the contract with the underlying term. Derivatives are also implicit in certain contracts and commitments.

The derivative financial instruments currently used by the Company to manage its exposure to interest rate risk include: (1) interest rate swaps, collars and floors to manage the interest rate risk of certain fixed and variable rate assets and variable rate liabilities; (2) interest rate lock commitments provided to customers to fund certain mortgage loans to be sold into the secondary market; (3) forward commitments for the future delivery of such mortgage loans to protect the Company from adverse changes in interest rates and corresponding changes in the value of mortgage loans held-for-sale; (4) covered call options to economically hedge specific investment securities and receive fee income, effectively enhancing the overall yield on such securities to compensate for potential net interest margin compression; and (5) options and swaps to economically hedge a portion of the fair value adjustments related to the Company’s mortgage servicing rights portfolio. The Company also enters into derivatives (typically interest rate swaps and commodity forward contracts) with certain qualified borrowers to facilitate the borrowers’ risk management strategies and concurrently enters into mirror-image derivatives with a third-party counterparty, effectively making a market in the derivatives for such borrowers. Additionally, the Company enters into foreign currency contracts to manage foreign exchange risk associated with certain foreign currency denominated assets.

The Company recognizes derivative financial instruments in the consolidated financial statements at fair value regardless of the purpose or intent for holding the instrument. The Company records derivative assets and derivative liabilities on the Consolidated Statements of Condition within accrued interest receivable and other assets and accrued interest payable and other liabilities, respectively. Changes in the fair value of derivative financial instruments are either recognized in income or in shareholders’ equity as a component of accumulated other comprehensive income or loss depending on whether the derivative financial instrument qualifies for hedge accounting and, if so, whether it qualifies as a fair value hedge or cash flow hedge.

Changes in fair values of derivatives accounted for as fair value hedges are recorded in income in the same period and in the same income statement line as changes in the fair values of the hedged items that relate to the hedged risk(s). Changes in fair values of derivative financial instruments accounted for as cash flow hedges are recorded as a component of accumulated other comprehensive income or loss, net of deferred taxes, and reclassified to earnings when the hedged transaction affects earnings. Changes in fair values of derivative financial instruments not designated in a hedging relationship pursuant to ASC 815 are reported in non-interest income during the period of the change. Derivative financial instruments are valued by a third party and are corroborated by comparison with valuations provided by the respective counterparties. Fair values of certain mortgage banking derivatives (interest rate lock commitments and forward commitments to sell mortgage loans) are estimated based on changes in mortgage interest rates from the date of the loan commitment. The fair value of foreign currency derivatives is computed based on changes in foreign currency rates stated in the contract compared to those prevailing at the measurement date. Commodity derivative fair values are computed based on changes in the price per unit stated in the contract compared to those prevailing at the measurement date.

The table below presents the fair value of the Company’s derivative financial instruments as of September 30, 2026, December 31, 2025 and September 30, 2025:

Cash Flow Hedges of Interest Rate Risk

The Company’s objectives in using interest rate derivatives are to add stability to net interest income and to manage its exposure to interest rate movements. To accomplish these objectives, the Company uses interest rate swaps, collars and floors as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts to or from a counterparty in exchange for the Company receiving or paying fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. Interest rate collars designated as cash flow hedges involve the settlement of amounts in which the interest rate specified in the contract exceeds the agreed upon cap strike rate or in which the interest rate specified in the contract is below the agreed upon floor strike rate at the end of each period.

Interest rate floors designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty if interest rates fall below the strike rate on the contract in exchange for an upfront premium.

As of September 30, 2026, the Company had various interest rate collar, swap and floor derivatives designated as cash flow hedges of variable rate loans. When the relationship between the hedged item and hedging instrument is highly effective at achieving offsetting changes in cash flows attributable to the hedged risk, changes in the fair value of these cash flow hedges are recorded in accumulated other comprehensive income or loss and are subsequently reclassified to interest income as interest payments are made on such variable rate loans. The changes in fair value (net of tax) are separately disclosed in the Consolidated Statements of Comprehensive Income.

The table below provides details on these cash flow hedges, summarized by derivative type and maturity, as of September 30, 2026:

(1)The notional amount includes forward-starting swaps that are not yet effective.

In the first quarter of 2022, the Company terminated interest rate swap derivative contracts designated as cash flow hedges of variable rate deposits with a total notional value of $1.0 billion and afive-year term effective July 2022. At the time of termination, the fair value of the derivative contracts totaled an asset of $66.5 million, with such adjustments to fair value recorded in accumulated other comprehensive income or loss.

For all such terminations, as the hedged forecasted transactions (interest payments on variable rate deposits) are still expected to occur over the remaining term of such terminated derivatives, such adjustments will remain in accumulated other comprehensive income or loss and be reclassified as a reduction to interest expense on a straight-line basis over the original term of the terminated derivative contracts.

A rollforward of the amounts in accumulated other comprehensive income or loss related to interest rate derivatives designated as cash flow hedges, including such derivative contracts terminated during the period, follows:

As of September 30, 2026, the Company estimated that during the next 12 months $28.7 million will be reclassified from accumulated other comprehensive income or loss as a decrease to net interest income. Such estimate consists of $10.0 million reclassified as a reduction to interest expense on the terminated cash flow hedges discussed above and $38.7 million reclassified as a decrease to interest income related to the interest rate collars, floors and swaps noted above that remain outstanding.

Fair Value Hedges of Interest Rate Risk

Interest rate swaps designated as fair value hedges involve the payment of fixed amounts to a counterparty in exchange for the Company receiving variable payments over the life of the agreements without the exchange of the underlying notional amount. As of September 30, 2026, the Company had 13 interest rate swaps with an aggregate notional amount of $99.5 million that were designated as fair value hedges primarily associated with fixed rate commercial and industrial and commercial real estate loans as well as life insurance premium finance receivables.

For derivatives designated and that qualify as fair value hedges, the net gain or loss from the entire change in the fair value of the derivative instrument is recognized in the same income statement line item as the earnings effect, including the net gain or loss, of the hedged item (interest income earned on fixed rate loans) when the hedged item affects earnings.

The following amounts were recorded on the balance sheet related to cumulative basis adjustments for fair value hedges as of September 30, 2026:

The following table presents the loss or gain recognized related to derivative instruments that are designated as fair value hedges for the respective period:

Non-Designated Hedges

The Company does not use derivatives for speculative purposes. Derivatives not designated as accounting hedges are used to manage the Company’s economic exposure to interest rate movements and other identified risks but do not meet the strict hedge accounting requirements of ASC 815. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings.

For each of the derivative strategies described below, the Company's banking subsidiaries execute derivative products directly with qualified borrowers or customers to facilitate their respective risk management strategies. In order to minimize the Company’s exposure on these transactions, the Company simultaneously executes offsetting derivatives with third parties. In most cases, the offsetting derivatives have mirror-image terms, which result in the positions’ changes in fair value substantially offsetting through earnings each period. However, to the extent that the derivatives are not a mirror-image and because of differences in counterparty credit risk, changes in fair value will not completely offset, resulting in some earnings impact each period. Changes in the fair value of these derivatives are included in other non-interest income.

Mortgage Banking Derivatives—These derivatives include interest rate lock commitments provided to customers to fund certain mortgage loans to be sold into the secondary market and forward commitments for the future delivery of such loans. It is the Company’s practice to enter into forward commitments for the future delivery of a portion of its residential mortgage loan production when interest rate lock commitments are entered into in order to economically hedge the effect of future changes in interest rates on its commitments to fund the loans as well as on its portfolio of mortgage loans held-for-sale. The Company’s mortgage banking derivatives have not been designated as being in hedge relationships. At September 30, 2026 and

December 31, 2025, the Company had interest rate lock commitments with an aggregate notional amount of approximately $137.1 million and $161.9 million, and forward commitments to sell mortgage loans with an aggregate notional amount of approximately $325.7 million and $413.2 million, respectively. The fair values of these derivatives were estimated based on changes in mortgage rates from the dates of the commitments. Changes in the fair value of these mortgage banking derivatives are included in mortgage banking revenue.

Periodically, the Company will purchase mortgage and interest rate derivative contracts in which the Company elects to not designate such derivatives as hedging instruments. These contracts are designed primarily to economically hedge a portion of the fair value adjustments related to the Company’s mortgage servicing rights portfolio. The gain or loss associated with these derivative contracts is included in mortgage banking revenue. The Company held fourteen interest rate derivatives with an aggregate notional value of $482.0 million at September 30, 2026 andten interest rate derivatives with an aggregate notional value of $362.0 million at December 31, 2025. At September 30, 2026, the Company hadone to-be-announced forward-setting contract for mortgage-backed securities with an aggregate notional value of $56.0 million, for such purpose of economically hedging a portion of the fair value adjustment related to its mortgage servicing rights portfolio. At December 31, 2025, the Company hadone such forward-setting contract with an aggregate notional value of $56.0 million.

Other Derivatives—Periodically, the Company will sell options to a bank or dealer for the right to purchase certain securities held within the banks’ investment portfolios (covered call options). These option transactions are designed to increase the total return associated with the investment securities portfolio. These options do not qualify as accounting hedges pursuant to ASC 815 and, accordingly, changes in the fair value of these contracts are recognized as other non-interest income. There wereno covered call options outstanding as of September 30, 2026, December 31, 2025 or September 30, 2025.

Amounts included in the Consolidated Statements of Income related to derivative instruments not designated in hedge relationships were as follows:

Credit Risk

Derivative instruments have inherent risks, primarily market risk and credit risk. Market risk is associated with changes in the value of an underlying asset. Credit risk relates to the risk that the counterparty will fail to perform according to the terms of the agreement. The Company is exposed to the credit risk of its commercial borrowers and third party financial institutions who are counterparties to interest rate derivatives with the Company.

The counterparty credit risk associated with the mirror-image swaps executed with third party financial institutions is monitored and managed as part of the Company’s overall asset-liability management process, except that the counterparty credit risk related to derivatives entered into with certain qualified borrowers is managed through the Company’s standard loan underwriting process for commercial borrowers since these derivatives typically share in the collateral provided by the loan agreements.

When deemed necessary, appropriate types and amounts of collateral are obtained to minimize credit exposure. The Company hedges the market risk of derivatives transactions with commercial borrowers by entering into offsetting transactions with large, highly rated financial institutions. These exposures are generally secured by cash under bilateral Credit Support Annexes, which are a component of the International Swaps and Derivatives Association (“ISDA”) Master Agreements executed with counterparties.

Aggregate counterparty exposures are monitored against various types of credit limits established to contain risk within parameters. Counterparty credit risk is managed by the Counterparty Credit Risk Management team in accordance with Supervision & Regulatory 11-10, Interagency Counterparty Credit Risk Management Guidance, which was issued in 2011 in response to the financial crisis of 2008. The guidance addresses counterparty credit risk governance, measurement, management, and systems. Specifically, counterparty risk is managed through the establishment and regular review of exposure limits, formalization of limits in policy and procedure, ongoing review of models, and having a single platform to allow for the timely aggregation of exposures. The Counterparty Credit Risk Management team uses a variety of approaches to monitor counterparty financial performance, including monitoring of credit exposure versus limits, use of early warning reports, and daily and intraday monitoring of financial developments.

The Company has agreements with certain of its interest rate derivative counterparties that contain cross-default provisions, which provide that if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. The Company also has agreements with certain of its derivative counterparties that contain a provision allowing the counterparty to terminate the derivative positions if the Company fails to maintain its status as a well or adequately capitalized institution, which would require the Company to settle its obligations under the agreements. If the Company were to breach any of these provisions, at a time when the derivatives subject to such agreements are in a liability position, and the derivatives were to be terminated as a result, the Company would be required to settle its obligations under the agreements at the termination value and would be required to pay any additional amounts due in excess of amounts previously posted as collateral with the respective counterparty. As of September 30, 2026, there were $43.9 million of derivatives that were subject to such agreements in a net liability position.

The Company records interest rate derivatives subject to master netting agreements at their gross value and does not offset derivative assets and liabilities on the Consolidated Statements of Condition. The table below summarizes the Company’s interest rate derivatives and offsetting positions as of the dates shown.

(14)Fair Value of Assets and Liabilities

The Company measures, monitors and discloses certain of its assets and liabilities on a fair value basis. These financial assets and financial liabilities are measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observability of the inputs used to determine fair value. These levels are:

•Level 1—unadjusted quoted prices in active markets for identical assets or liabilities.

•Level 2—inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability or inputs that are derived principally from or corroborated by observable market data by correlation or other means.

•Level 3—significant unobservable inputs that reflect the Company’s own assumptions that market participants would use in pricing the assets or liabilities. Level 3 assets and liabilities include 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.

A financial instrument’s categorization within the above valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the assets or liabilities. The following is a description of the valuation methodologies used for the Company’s assets and liabilities measured at fair value on a recurring basis.

Available-for-sale debt securities, trading account securities and equity securities with readily determinable fair value—Fair values for available-for-sale debt securities, trading account securities and equity securities with readily determinable fair value are typically based on prices obtained from independent pricing vendors. Securities measured with these valuation techniques are generally classified as Level 2 of the fair value hierarchy. Typically, standard inputs such as benchmark yields, reported trades for similar securities, issuer spreads, benchmark securities, bids, offers and reference data including market research publications are used to determine the fair value of these securities. When these inputs are not available, broker/dealer quotes may be obtained by the vendor to determine the fair value of the security. We review the vendor’s pricing methodologies to determine if observable market information is being used, versus unobservable inputs. Fair value measurements using significant inputs that are unobservable in the market due to limited activity or a less liquid market are classified as Level 3 in the fair value hierarchy. The fair value of U.S. Treasury securities and certain equity securities with readily determinable fair value are based on unadjusted quoted prices in active markets for identical securities. As such, these securities are classified as Level 1 in the fair value hierarchy.

The Company’s Investment Operations Department is responsible for the valuation of Level 3 available-for-sale debt securities. The methodology and variables used as inputs in pricing Level 3 securities are derived from a combination of observable and unobservable inputs. The unobservable inputs are determined through internal assumptions that may vary from period to period due to external factors, such as market movement and credit rating adjustments.

At September 30, 2026, the Company classified $119.7 million of municipal securities as Level 3. These municipal securities are bond issuances for various municipal government entities primarily located in the Chicago metropolitan area, southern Wisconsin and west Michigan and are privately placed, non-rated bonds without CUSIP numbers. The Company’s methodology for pricing these securities focuses on three distinct inputs: equivalent rating, yield and other pricing terms. To determine the rating for a given non-rated investment debt security, the Investment Operations Department references a rated, publicly issued bond by the same issuer if available. A reduction is then applied to the rating obtained from the comparable bond, as the Company believes if liquidated, a non-rated bond would be valued less than a similar bond with a verifiable rating. The reduction applied by the Company is one complete rating grade (i.e., a “AA” rating for a comparable bond would be reduced to “A” for the Company’s valuation). For bond issuances without comparable bond proxies, a rating of “BBB” was assigned. In the third quarter of 2026, all of the ratings derived by the Investment Operations Department using the above process were “BBB” or better. The fair value measurement noted above is sensitive to the rating input, as a higher rating typically results in an increased valuation. The remaining pricing inputs used in the bond valuation are observable. Based on the rating determined in the above process, Investment Operations obtains a corresponding current market yield curve available to market participants. Other terms including coupon, maturity date, redemption price, number of coupon payments per year, and accrual method are obtained from the individual bond term sheets. Certain municipal bonds held by the Company at September 30, 2026 are continuously callable. When valuing these bonds, the fair value is capped at par value as the Company assumes a market participant would not pay more than par for a continuously callable bond.

Mortgage loans held-for-sale—The fair value of mortgage loans held-for-sale is typically determined by reference to investor price sheets for loan products with similar characteristics. Loans measured with this valuation technique are classified as Level 2 in the fair value hierarchy.

At September 30, 2026, the Company classified $52.7 million of certain delinquent mortgage loans held-for-sale as Level 3. For such delinquent loans in which investor interest may be limited, the Company estimates fair value by discounting future scheduled cash flows for the specific loan through its life, adjusted for estimated credit losses. The Company uses a discount rate based on prevailing market coupon rates on loans with similar characteristics. The assumed weighted average discount rate used as an input to value these loans at September 30, 2026 was 6.41%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. Additionally, the weighted average credit discount used as an input to value the specific loans was 0.66% with credit loss discount ranging from 0.00% to 29.73% at September 30, 2026.

Loans held-for-investment—The fair value of loans held-for-investment is typically determined by reference to investor price sheets for loan products with similar characteristics. Loans measured with this valuation technique are classified as Level 2 in the fair value hierarchy.

The fair value for certain loans in which the Company previously elected the fair value option is estimated by discounting future scheduled cash flows for the specific loan through maturity, adjusted for estimated credit losses and prepayment or life assumptions. These loans primarily consist of early buyout loans guaranteed by U.S. government agencies that are delinquent and, as a result, investor interest may be limited. The Company uses a discount rate based on the actual coupon rate of the underlying loan. At September 30, 2026, the Company classified $50.5 million of loans held-for-investment carried at fair value as Level 3. The assumed weighted average discount rate used as an input to value these loans at September 30, 2026 was 6.46%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. As noted above, the fair value estimate also includes assumptions of prepayment speeds and average life as well as credit losses. The weighted average prepayments speed used as an input to value current loans was 7.56% at September 30, 2026. Prepayment speeds are inversely related to the fair value of these loans as an increase in prepayment speeds results in a decreased valuation.

For delinquent loans in which performance is not assumed and there is a higher probability of resolution of the loan ending in foreclosure, the weighted average life of such loans was 5.3 years. Average life is inversely related to the fair value of these loans as an increase in estimated life results in a decreased valuation. Additionally, the weighted average credit discount used as an input to value the specific loans was 1.78% with credit loss discounts ranging from 0.00% to 37.98% at September 30, 2026.

MSRs—Fair value for MSRs is determined utilizing a valuation model which calculates the fair value of each servicing right based on the present value of estimated future cash flows. The Company uses a discount rate commensurate with the risk associated with each servicing right, given current market conditions. At September 30, 2026, the Company classified $238.5 million of MSRs as Level 3. The weighted average discount rate used as an input to value the pool of MSRs at September 30, 2026 was 9.82% with discount rates applied ranging from 9.00% to 13.00%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. The fair value of MSRs was also estimated based on other assumptions including prepayment speeds and the cost to service. Prepayment speeds ranged from 5.78% to 100.00% or a weighted average prepayment speed of 7.56%. Further, for current and delinquent loans, the Company assumed a weighted average cost of servicing of $76 and $375, respectively, per loan. Prepayment speeds and the cost to service are both inversely related to the fair value of MSRs as an increase in prepayment speeds or the cost to service results in a decreased valuation. See Note (8) “Mortgage Servicing Rights (“MSRs”)” in Item 1 of this report for further discussion of MSRs.

Derivative instruments—The Company’s derivative instruments include swaps, collars and purchased options such as caps and floors, commitments to fund mortgages for sale into the secondary market (interest rate locks), forward commitments to end investors for the sale of mortgage loans, commodity future contracts and foreign currency contracts. Swaps, collars and purchased options such as caps and floors and commodity future contracts are valued by a third party, using models that primarily use market observable inputs, such as yield curves and commodity prices prevailing at the measurement date, and are classified as Level 2 in the fair value hierarchy. The credit risk associated with derivative financial instruments that are subject to master netting agreements is measured on a net basis by counterparty portfolio. The fair value for mortgage-related derivatives is based on changes in mortgage rates from the date of the commitments. The fair value of foreign currency derivatives is computed based on change in foreign currency rates stated in the contract compared to those prevailing at the measurement date.

At September 30, 2026, the Company classified approximately $816,000 of derivative assets related to interest rate locks as Level 3. The fair value of interest rate locks is based on prices obtained for loans with similar characteristics from third parties, adjusted for the pull-through rate, which represents the Company’s best estimate of the likelihood that a committed loan will ultimately fund. The weighted-average pull-through rate at September 30, 2026 was 87.89% with pull-through rates applied ranging from 19.55% to 100%. Pull-through rates are directly related to the fair value of interest rate locks as an increase in the pull-through rate results in an increased valuation.

Nonqualified deferred compensation assets—The underlying assets relating to the nonqualified deferred compensation plan are included in a trust and primarily consist of non-exchange traded institutional funds which are priced by an independent third party service. These assets are classified as Level 2 in the fair value hierarchy.

The following tables present the balances of assets and liabilities measured at fair value on a recurring basis for the periods presented:

The aggregate remaining contractual principal balance outstanding as of September 30, 2026, December 31, 2025 and September 30, 2025 for mortgage loans held-for-sale measured at fair value under ASC 825 was $318.7 million, $343.3 million and $339.1 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $307.7 million, $340.7 million and $333.9 million, for the same respective periods, as shown in the above tables. At September 30, 2026, $1.2 million of mortgage loans held-for-sale were classified as non-accrual compared to $700,000 as of December 31, 2025 and $200,000 as of September 30, 2025. Additionally, there were $52.1 million of loans past due greater than 90 days and still accruing in the mortgage loans held-for-sale portfolio as of September 30, 2026 compared to $53.1 million as of December 31, 2025 and $53.8 million as of September 30, 2025. All of the non-accrual loans and loans past due greater than 90 days and still accruing within the mortgage loans held-for-sale portfolio at September 30, 2026, December 31, 2025, and September 30, 2025 were individual delinquent mortgage loans bought back from GNMA at the unconditional option of the Company as servicer for those loans.

The aggregate remaining contractual principal balance outstanding as of September 30, 2026, December 31, 2025 and September 30, 2025 for loans held-for-investment measured at fair value under ASC 825 was $145.9 million, $148.1 million and $126.4 million, respectively, while the aggregate fair value of loans held-for-investment was $145.8 million, $151.6 million and $129.6 million, respectively, as shown in the above tables.

The changes in Level 3 assets measured at fair value on a recurring basis during the three and nine months ended September 30, 2026 and 2025 are summarized as follows:

(1)Changes in the balance of mortgage loans held-for-sale, MSRs, and derivative assets related to fair value adjustments are recorded as components of mortgage banking revenue. Changes in the balance of loans held-for-investment related to fair value adjustments are recorded as other non-interest income.

(1)Changes in the balance of mortgage loans held-for-sale, MSRs and derivative assets related to fair value adjustments are recorded as components of mortgage banking revenue. Changes in the balance of loans held-for-investment related to fair value adjustments are recorded as other non-interest income.

Also, the Company may be required, from time to time, to measure certain other assets at fair value on a non-recurring basis in accordance with GAAP. These adjustments to fair value usually result from impairment charges on individual assets. For assets measured at fair value on a non-recurring basis that were still held in the balance sheet at the end of the period, the following table provides the carrying value of the related individual assets or portfolios at September 30, 2026:

Individually assessed loans—In accordance with ASC 326, the allowance for credit losses for loans and other financial assets

held at amortized cost should be measured on a collective or pooled basis when such assets exhibit similar risk characteristics. In instances in which a financial asset does not exhibit similar risk characteristics to a pool, the Company is required to measure such allowance for credit losses on an individual asset basis. For the Company’s loan portfolio, non-accrual loans are considered to not exhibit similar risk characteristics as pools and thus are individually assessed. Credit losses are measured by estimating the fair value of the loan based on the present value of expected cash flows, the market price of the loan, or the fair value of the underlying collateral. Individually assessed loans are considered a fair value measurement where an allowance for credit loss is established based on the fair value of collateral. Appraised values on relevant real estate properties, which may require adjustments to market-based valuation inputs, are generally used on foreclosure probable and collateral-dependent loans within the real estate portfolios.

The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 inputs of individually assessed loans. For more information on individually assessed loans refer to Note (6) “Allowance for Credit Losses” in Item 1 of this report. At September 30, 2026, the Company had $126.0 million of individually assessed loans classified as Level 3. All of the $126.0 million of individually assessed loans were measured at fair value based on the underlying collateral of the loan as shown in the table above.

Other real estate owned—Other real estate owned is comprised of real estate acquired in partial or full satisfaction of loans and is included in other assets. Other real estate owned is recorded at its estimated fair value less estimated selling costs at the date of transfer, with any excess of the related loan balance over the fair value less expected selling costs charged to the allowance for loan losses. Subsequent changes in value are reported as adjustments to the carrying amount and are recorded in other non-interest expense. Gains and losses upon sale, if any, are also charged to other non-interest expense. Fair value is generally based on third party appraisals and internal estimates that are adjusted by a discount representing the estimated cost of sale and is therefore considered a Level 3 valuation.

The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 inputs for other real estate owned. At September 30, 2026, the Company had $16.4 million of other real estate owned classified as Level 3. The unobservable input applied to other real estate owned relates to the 10.00% reduction to the appraisal value representing the estimated cost of sale of the foreclosed property. A higher discount for the estimated cost of sale results in a decreased carrying value.

The valuation techniques and significant unobservable inputs used to measure both recurring and non-recurring Level 3 fair value measurements at September 30, 2026 were as follows:

The Company is required under applicable accounting guidance to report the fair value of all financial instruments on the Consolidated Statements of Condition, including those financial instruments carried at cost. The table below presents the carrying amounts and estimated fair values of the Company’s financial instruments as of the dates shown:

Not all the financial instruments listed in the table above are subject to the disclosure provisions of ASC Topic 820, as certain assets and liabilities result in their carrying value approximating fair value. These include cash and cash equivalents, interest-bearing deposits with banks, brokerage customer receivables, FHLB and FRB stock, accrued interest receivable and accrued interest payable and non-maturity deposits.

The following methods and assumptions were used by the Company in estimating fair values of financial instruments that were not previously disclosed.

Held-to-maturity securities— Held-to-maturity securities include U.S. government-sponsored agency securities, municipal bonds issued by various municipal government entities primarily located in the Chicago metropolitan area, southern Wisconsin, and west Michigan and mortgage-backed securities. Fair values for held-to-maturity securities are typically based on prices obtained from independent pricing vendors. In accordance with ASC 820, the Company has generally categorized these held-to-maturity securities as a Level 2 fair value measurement. Fair values for certain other held-to-maturity securities are based on the bond pricing methodology discussed previously related to certain available-for-sale securities. In accordance with ASC 820, the Company has categorized these held-to-maturity securities as a Level 3 fair value measurement.

Loans held-for-investment, at amortized cost— Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are analyzed by type (commercial, residential real estate, etc.) and category within each type (construction, non-construction, franchise lending etc.). Each category is further segmented by interest rate type (fixed and variable). The fair value of both fixed and variable rate loans is estimated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect credit and interest rate risks inherent in the loan. In accordance with ASC 820, the Company has categorized loans as a Level 3 fair value measurement.

Deposits with stated maturities— The fair value of certificates of deposit is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently in effect for deposits of similar remaining maturities. In accordance with ASC 820, the Company has categorized deposits with stated maturities as a Level 3 fair value measurement.

FHLB advances— The fair value of FHLB advances is calculated using a discounted cash flow analysis based on current market rates of similar maturity debt securities to discount cash flows. In accordance with ASC 820, the Company has categorized FHLB advances as a Level 3 fair value measurement.

Subordinated notes— The fair value of the subordinated notes is based on a market price obtained from an independent pricing vendor. In accordance with ASC 820, the Company has categorized subordinated notes as a Level 2 fair value measurement.

Junior subordinated debentures— The fair value of the junior subordinated debentures is based on the discounted value of contractual cash flows. In accordance with ASC 820, the Company has categorized junior subordinated debentures as a Level 3 fair value measurement.

(15)Stock-Based Compensation Plans

As of September 30, 2026, approximately 1,862,000 shares were available for future grants, assuming the maximum number of shares are issued for the performance awards outstanding, approved under the Company Stock Incentive Plans (“the Plans”). Descriptions of the Plans are included in Note (18) “Stock Compensation Plans and Other Employee Benefit Plans” of the 2025 Form 10-K.

Stock-based compensation expense recognized in the Consolidated Statements of Income was $11.9 million in the third quarter of 2026 and $10.1 million in the third quarter of 2025, and $34.9 million and $30.6 million in the nine months ended September 30, 2026 and 2025, respectively.

A summary of the Plans’ stock option activity for the nine months ended September 30, 2026 and September 30, 2025 is presented below:

(1)Represents the remaining weighted average contractual life in years.

(2)Aggregate intrinsic value represents the total pre-tax intrinsic value (i.e., the difference between the Company’s stock price on the last trading day of the quarter and the option exercise price, multiplied by the number of shares) that would have been received by the option holders if they had exercised their options on the last day of the quarter. Options with exercise prices above the stock price on the last trading day of the quarter are excluded from the calculation of intrinsic value. The intrinsic value will change based on the fair market value of the Company’s stock.

The aggregate intrinsic value of options exercised during the nine months ended September 30, 2026 and September 30, 2025, was approximately $250,000 and $467,000, respectively. Cash received from option exercises under the Plans for the nine months ended September 30, 2026 and September 30, 2025 was approximately $95,000 and $220,000, respectively.

A summary of the Plans’ restricted share activity for the nine months ended September 30, 2026 and September 30, 2025 is presented below:

A summary of the Plans’ performance-based stock award activity, based on the target level of the awards, for the nine months ended September 30, 2026 and September 30, 2025 is presented below:

(16)Accumulated Other Comprehensive Income or Loss and Earnings Per Share

Accumulated Other Comprehensive Income or Loss

The following tables summarize the components of other comprehensive income or loss, including the related income tax effects, and the related amount reclassified to net income for the periods presented:

Earnings per Share

The following table shows the computation of basic and diluted earnings per share for the periods indicated:

Potentially dilutive common shares can result from stock options, restricted stock unit awards and shares to be issued under the Employee Stock Purchase Plan and the Directors Deferred Fee and Stock Plan, being treated as if they had been either exercised or issued, computed by application of the treasury stock method. While potentially dilutive common shares are typically included in the computation of diluted earnings per share, potentially dilutive common shares are excluded from this computation in periods in which the effect of inclusion would either reduce the loss per share or increase the income per share.

At the January 2026 meeting of the Board of Directors of the Company (the “Board of Directors”), a quarterly cash dividend of $0.55 per share ($2.20 on an annualized basis) was declared. It was paid on February 19, 2026 to shareholders of record as of February 5, 2026. At the April 2026 meeting of the Board of Directors, a quarterly cash dividend of $0.55 per share ($2.20 on an annualized basis) was declared. It was paid on May 28, 2026 to shareholders of record as of May 14, 2026. At the July 2026 meeting of the Board of Directors, a quarterly cash dividend of $0.55 per share ($2.20 on an annualized basis) was declared. It was paid on August 20, 2026 to shareholders of record as of August 6, 2026.