FISV: 8-K company filing

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 21, 2026 Fiserv, Inc. (Exact Name of Registrant as Specified in Charter) Wisconsin 1-38962 39-1506125 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 600 N. Vel R. Phillips Avenue , Milwaukee , Wisconsin 53203 (Address of Principal Executive Offices, Including Zip Code) (262) 879-5000 (Registrant’s telephone number, including area code) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act : Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock, par value $0.01 per share FISV The NASDAQ Stock Market LLC 1.125% Senior Notes due 2027 FISV27 The NASDAQ Stock Market LLC 1.625% Senior Notes due 2030 FISV30 The NASDAQ Stock Market LLC 3.000% Senior Notes due 2031 FISV31 The NASDAQ Stock Market LLC 4.500% Senior Notes due 2031 FISV31A The NASDAQ Stock Market LLC 2.875% Senior Notes due 2028 FISV28C The NASDAQ Stock Market LLC 3.500% Senior Notes due 2032 FISV32 The NASDAQ Stock Market LLC 4.000% Senior Notes d