FISERV INC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

PROXY STATEMENT PURSUANT TO SECTION 14(a)

OF THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. )

☒ Filed by the Registrant ☐ Filed by a Party other than the Registrant

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FISERV, INC.

(Name of Registrant as Specified in its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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Dear Fellow Shareholders,

In 2025, we undertook a rigorous review of our business that led to a reset of our earnings baseline. This recalibration represents an important and revitalizing moment for Fiserv, driven by a clear-eyed assessment of where we needed to strengthen execution and accelerate investment. We used this opportunity to refocus on the pillars that have long defined our company – exceptional client service, world-class execution, value-added technology, and cutting-edge innovation – to position us to deliver sustainable, high-quality growth and long-term value for our shareholders.

One Fiserv Action Plan

With our objectives well-defined, we established a new strategic framework called the One Fiserv action plan focused on five strategic pillars: operating with a client-first mindset; building the pre-eminent small business operating platform through Clover®; creating differentiated platforms in finance and commerce; delivering operational excellence enabled by artificial intelligence; and employing disciplined capital allocation for the long-term. One Fiserv serves as the foundation of our strategy and is embedded within our 2026 operating plan.

Leadership and Board Transitions

In the past year, the board oversaw a number of leadership transitions, working closely with management to ensure continuity while enhancing the experience and capabilities of the team. We are encouraged by the opportunities created by the changes to our senior leadership team and organizational structure. In addition, as part of our multi-year board refreshment effort, we added three new directors in 2026. The new directors further enhance the board’s collective skillsets with backgrounds in financial services, experience leading transformation and financial expertise, directly supporting our enhanced focus on execution, client-centricity, operational rigor and long-term value creation. Fiserv is positioned to enter its next chapter with the talent required to deliver on the company’s long-term strategy.

Ongoing dialogue with our shareholders was especially important during this transition. In addition to regular engagement through earnings calls, analyst meetings, and investor and industry conferences, we undertook broad governance outreach with director participation. Across these conversations, shareholders expressed support for the leadership transitions and board refreshment efforts, while emphasizing the importance of open communication and clear alignment among compensation, strategy, and long-term value creation.

Looking Ahead

We believe no other company has the assets, breadth and scale to connect all parts of the financial ecosystem. Our position at the center of commerce and the growing connection between businesses and financial institutions provides unique opportunities in areas such as embedded finance, stablecoin, networks, and merchant liquidity. Our focus on service excellence and new technology, including artificial intelligence, is designed to accelerate our ability to capitalize on and scale these opportunities. We recognize the critical roles we play across both of our segments and are thankful for the opportunity to deliver value to our shareholders and clients.

Please join us for our annual meeting which will be held online at www.virtualshareholdermeeting.com/FISV2026 on Thursday, May 21, 2026, at 10:00 a.m. Central time. Details for attending the meeting, and how and when to vote, are included in this proxy statement. Your vote is very important to us. If you are unable to attend the annual meeting, please vote in advance of the meeting online, by mail or by telephone to ensure your shares are represented.

Thank you for your continued support and investment in Fiserv.

Notice of

2026 Annual

Meeting of

Shareholders

May 21, 2026 Thursday, at 10:00 a.m. (CT)

Virtual Annual Meeting Site www.virtualshareholdermeeting.com/FISV2026, where you will be able to listen to the annual meeting live, submit questions and vote online

Who Can Vote

Holders of Fiserv stock at the close of business on March 24, 2026.

Participating in the Virtual Annual Meeting

The annual meeting will be held via live webcast to enable broad shareholder attendance and to provide a consistent experience to all shareholders regardless of location. Holders of Fiserv stock at the close of business on March 24, 2026 are entitled to participate in, examine our shareholder list at, and submit questions in writing during the annual meeting by visiting www.virtualshareholdermeeting.com/FISV2026. To participate in the annual meeting, you will need the 16-digit control number included on your notice of Internet availability of proxy materials, on your proxy card or on the instructions that accompanied your proxy materials. The annual meeting will begin promptly at 10:00 a.m. (CT). Online check-in will begin at 9:45 a.m. (CT). Please allow ample time for the online check-in procedures.

Date of Mailing

On April 2, 2026, we will commence mailing the notice of Internet availability of proxy materials, or a proxy statement, proxy card and annual report, to shareholders.

Review your proxy statement and vote in one of four ways:

Important notice regarding the availability of proxy materials for the shareholder meeting to be held on May 21, 2026: The proxy statement, 2025 Annual Report on Form 10-K, and the means to vote by Internet are available at http://www.proxyvote.com.