Form 8-A12B/A FISERV INC

EXPLANATORY NOTE

This registration statement on Form 8-A was initially filed on the Electronic Data Gathering, Analysis, and Retrieval (“EDGAR”) system of the Securities and Exchange Commission on May 7, 2025. This registration statement on Form 8-A is hereby re-filed solely for the purpose of adding the co-registrant, Fiserv Funding Unlimited Company, on the EDGAR system.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-A

FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES

PURSUANT TO SECTION 12(b) OR 12(g) OF THE

SECURITIES EXCHANGE ACT OF 1934

FISERV, INC.

(Exact name of registrant as specified in its charter)

FISERV FUNDING UNLIMITED COMPANY

(Exact name of registrant as specified in its charter)

Securities to be registered pursuant to Section 12(b) of the Act:

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c), please check the following box. ☒

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d), please check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement file number to which this form relates:

333-277241

Securities to be registered pursuant to Section 12(g) of the Act:

None (Title of Class)

INFORMATION REQUIRED IN REGISTRATION STATEMENT

Fiserv, Inc. (the “Company”) and Fiserv Funding Unlimited Company (the “Issuer”), an indirect, wholly owned subsidiary of the Company, hereby incorporate by reference the description of the Issuer’s 2.875 % Senior Notes due 2028, the Issuer’s 3.500% Senior Notes due 2032 and the Issuer’s 4.000% Senior Notes due 2036, and the related guarantees thereof of the Company, to be registered hereunder, contained under the heading “Description of the Notes” included in the Issuer’s Prospectus Supplement, dated as of April 29, 2025, as filed with the Securities and Exchange Commission (the “Commission”) on April 30, 2025 pursuant to Rule 424(b) under the Securities Act of 1933, as amended, and under the heading “Description of Debt Securities and Guarantees of Debt Securities” in the accompanying Prospectus that constitutes a part of the Registration Statement on Form S-3 (Registration No. 333-277241) filed by the Company with the Securities and Exchange Commission on February  22, 2024, as amended by the Post-Effective Amendment No. 1 to the Registration Statement filed by the Issuer and the Company with the Securities and Exchange Commission on April 24, 2025.

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.