FORM 10-Q ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934. For the quarterly period ended March31, 2026OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934. For the transition period fromto FISERV, INC. (Exact Name of Registrant as Specified in Its Charter) Wisconsin(State or Other Jurisdiction ofIncorporation or Organization) 600 N. Vel R. Phillips Avenue, Milwaukee, WI 53203(Address of Principal Executive Offices and zip code) (262) 879-5000(Registrant’s Telephone Number, Including Area Code) Securities registered pursuant to Section 12(b) of the Act: Indicate by check mark whether the registrant (1)has filed all reports required to be filed by Section13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports),and (2)has been subject to such filing requirements for the past 90 days.Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submittedpursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12months (or for such shorter period that theregistrant was required to submit such files).Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smallerreporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smallerreporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ As of May1, 2026, there were 533,253,986 shares of common stock, $0.01 par value, of the registrant outstanding. Table of Contents INDEX PART I–FINANCIAL INFORMATION Item1.Financial Statements (Unaudited)Consolidated Statements of IncomeConsolidated Statements of Comprehensive IncomeConsolidated Balance SheetsConsolidated Statements of Cash FlowsNotes to Consolidated Financial StatementsItem2.Management’s Discussion and Analysis of Financial Condition and Results of OperationsItem3.Quantitative and Qualitative Disclosures About Market RiskItem4.Controls and Procedures PART II–OTHER INFORMATION Item1.Legal Proceedings43Item2.Unregistered Sales of Equity Securities and Use of Proceeds43Item 5.Other Information43Item6.Exhibits43 Exhibit IndexSignatures PART I. FINANCIAL INFORMATION Fiserv, Inc.Consolidated Statements of Income(In millions, except per share data)(Unaudited) See accompanying notes to consolidated financial statements. Fiserv, Inc.Consolidated Statements of Comprehensive Income(In millions)(Unaudited) Fiserv, Inc.Consolidated Balance Sheets(In millions)(Unaudited) Fiserv, Inc.Consolidated Statements of Cash Flows(In millions)(Unaudited) Fiserv, Inc.Notes to Consolidated Financial Statements(Unaudited) 1. Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation The consolidated financial statements for the three months ended March31, 2026 and 2025 are unaudited. In the opinion ofmanagement, all adjustments necessary for a fair presentation of the consolidated financial statements have been included. Suchadjustments consisted of normal recurring items. Interim results are not necessarily indicative of results for a full year. Theconsolidated financial statements and accompanying notes are presented as permitted by Form 10-Q and do not contain certaininformation included in the annual consolidated financial statements and accompanying notes of Fiserv, Inc. (the “Company”). Theseinterim consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanyingnotes included in the Company’s Annual Report on Form 10-K for the year ended December31, 2025. Principles of Consolidation The consolidated financial statements include the accounts of Fiserv, Inc. and its subsidiaries in which the Company holds a majoritycontrolling financial interest. All intercompany transactions and balances between the Company and its subsidiaries have beeneliminated in consolidation. Control is typically established when ownership and voting interests in an entity are greater than 50%.Investments in which the Company has significant influence but not control are accounted for using the equity method of accounting,for which the Company’s share of net income or loss is reported within income (loss) from investments in unconsolidated affiliates,and the related tax expense or benefit is reported within the income tax provision in the consolidated statements of income. Significantinfluence over an affiliate’s operations generally coincides with an owners