350 Orchard Avenue NE • P.O. Box 3077 • North Canton, Ohio 44720

April 2, 2026

Dear Fellow Stockholder:

2025 was a defining year for Diebold Nixdorf. We advanced our priorities, delivered consistent financial results and demonstrated the strength of a model that generates sustainable free cash flow with a stable, predictable financial profile.

Demand across our automation, software and services platforms accelerated throughout the year. We secured important wins in branch modernization, saw continued adoption of our ATM recyclers and expanded deployment of our SmartVision AI solution in North America. Our Lean operating system continued to drive structural efficiencies—improving margins, enhancing working capital performance and increasing operational predictability. These outcomes, supported by a fortress balance sheet and two credit rating upgrades in 2025, reflect the durability and scalability of our platform.

Looking ahead, we believe we are positioned to build on this momentum. Our financial flexibility position enables continued investment in innovation and operational excellence, balanced with disciplined capital deployment and capital returns to stockholders. Our portfolio—anchored by resilient core businesses in banking and retail and complemented by scalable growth platforms—provides multiple ways to drive sustained value creation in the years ahead. We move into 2026 with confidence, clarity and a strong foundation for continued progress.

On behalf of the Board and the management team, thank you for your continued investment in and commitment to Diebold Nixdorf.

Sincerely,

350 Orchard Avenue NE • P.O. Box 3077 • North Canton, Ohio 44720

NOTICE OF 2026 ANNUAL MEETING OF STOCKHOLDERS

Your attention is directed to the attached Proxy Statement, which fully describes these items. Any action on the items of business described above may be considered at the 2026 Annual Meeting of Stockholders at the time and on the date specified above, or at any time and date to which the meeting may be properly adjourned or postponed.

Holders of record of Diebold Nixdorf, Incorporated shares of common stock at the close of business on March 23, 2026 will be entitled to vote at the 2026 Annual Meeting of Stockholders. Instructions on attending the virtual meeting and voting your shares are described under “Participating in the 2026 Annual Meeting of Stockholders” and “Voting Information” in this Proxy Statement.

		By Order of the Board of Directors,
		ELIZABETH RADIGAN Executive Vice President, Chief Administrative Officer and Corporate Secretary

April 2, 2026

(approximate mailing date)

TABLE OF CONTENTS

		2026 PROXY STATEMENT |		i

PROXY SUMMARY

This proxy statement (“Proxy Statement”) is furnished to stockholders of Diebold Nixdorf, Incorporated (“Diebold Nixdorf,” the “Company,” “we,” “our,” and “us”) in connection with the solicitation by the Board of Directors of proxies to be used at our 2026 Annual Meeting of Stockholders, and any postponements or adjournments of the meeting.

These proxy materials are being sent to our stockholders on or about April 2, 2026.

This proxy summary is intended to provide an overview of the information you can find elsewhere in this Proxy Statement. As this is only a summary, we encourage you to read the Proxy Statement in its entirety for more information about these topics before voting.

MEETING INFORMATION AT A GLANCE

Information on voting mechanics, approval requirements and related matters can be found in the “Voting Information” and “Other Matters” sections starting on pages 3 and 62, respectively.

PARTICIPATING IN THE 2026 ANNUAL MEETING OF STOCKHOLDERS

The 2026 Annual Meeting of Stockholders will be held virtually on May 22, 2026 at 8:00 a.m. Eastern Daylight Time at www.virtualshareholdermeeting.com/DBD2026. We have adopted a virtual format to make participation accessible to all stockholders regardless of location.

You are entitled to participate if you were a stockholder of record at the close of business on March 23, 2026. To log in, enter the control number on your proxy card, voting instruction form, or Notice of Internet Availability of Proxy Materials. Beneficial owners holding shares through a broker, bank, or nominee will also need to provide their account and nominee name. Online check-in will begin shortly before the meeting, and a technical support phone number will be available approximately 15 minutes before the start of the meeting for stockholders experiencing difficulties.

You may submit questions in advance at www.proxyvote.com using your control number. Questions and answers applicable to our business will be posted on our Investor Relations website after the meeting. A replay will also be available at investors.dieboldnixdorf.com and is expected to remain available for up to one year.

Whether or not you plan to attend, we encourage you to vote in advance by phone, online at www.proxyvote.com, or by returning your completed proxy card.

		2026 PROXY STATEMENT |		1

OVERVIEW OF OUR BOARD NOMINEES

You are being asked to vote to elect each of the following nominees to our Board of Directors. The tables that follow provide summary information about our nominees. Detailed information about each director nominee’s background, skills and expertise can be found in Proposal 1: Election of Directors on page 5.

KEY QUALIFICATIONS AND SKILLS OF OUR NOMINEES

See page 9 for more information on our considerations regarding nominees for director and additional detail regarding the key qualifications and skills of our 2026 nominees. Information about our directors’ share ownership is provided on page 21 and information about our directors’ compensation begins on page 23.

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VOTING INFORMATION

		2026 PROXY STATEMENT |		3

A: The number of shares printed on your proxy card(s) represents all of your shares under a particular holding or account. Receipt of more than one proxy card or Notice of Internet Availability of Proxy Materials means that certain of your shares may be registered differently and/or are held in more than one account. If you receive more than one proxy card, sign and return all of your proxy cards to ensure that all of your shares of common stock are voted. If you receive more than one Notice, you should be sure to enter the voting site with the distinct control number on each Notice when voting over the Internet to ensure that all of your shares of common stock are voted.

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PROPOSAL 1: ELECTION OF DIRECTORS

OVERVIEW

The Nomination and Governance Committee evaluates the size of the Board from time to time commensurate with the evolving needs of the Company. The Nomination and Governance Committee and the full Board have determined that eight directors is an appropriate size for our Board and the Company’s current needs and will continue to provide us with the right mix of director skills and experiences necessary to support the Company and management.

We are recommending that stockholders elect eight directors to our Board. Each of our nominees for director identified on the following pages is independent as defined by the corporate governance standards of the NYSE and the Company’s Categorical Independence Standards for Directors, except for Mr. Marquez, our President and CEO.

If elected, each nominee will hold office for a term of one year from the date of the 2026 Annual Meeting of Stockholders or until the election and qualification of a successor. In the absence of contrary instruction from a stockholder, the Proxy Committee will vote the proxies for the election of each of the eight nominees.

In the unlikely event that, for any reason, any nominee for director is not available for election when the election occurs, the Proxy Committee, at its option, may vote for substitute nominees recommended by the Board whether or not any other nominations are properly made at the 2026 Annual Meeting of Stockholders. Alternatively, the Board may reduce the number of nominees for director. The Board has no reason to believe that any of our nominees for director will be unable or unwilling to serve when the election occurs. Each of our nominees for election at the 2026 Annual Meeting of Stockholders has agreed to serve as a director, if elected.

OUR DIRECTOR NOMINEES

		2026 PROXY STATEMENT |		5

IDENTIFICATION AND EVALUATION OF DIRECTOR NOMINEES

The Nomination and Governance Committee considers many methods for identifying and evaluating potential director nominees, establishes plans for any anticipated vacancies, and regularly reviews the appropriate size and makeup of the Board. When vacancies arise or are anticipated, the Nomination and Governance Committee considers candidates identified in a variety of ways. Candidates may be introduced to the Nomination and Governance Committee through current Board members, professional search firms, stockholders or other persons. We also periodically engage with stockholders for their input and views regarding our Board’s succession planning.

The Nomination and Governance Committee also considers stockholder nominations for candidates for the Board. Following verification that a stockholder’s candidates have been properly submitted in accordance with our Bylaws and applicable law, these recommendations are considered by the Board Nomination and Governance Committee at regularly scheduled meetings.

In evaluating nominees for director, including the re-nomination of continuing directors, the Nomination and Governance Committee considers many factors in order to maintain and strengthen the talent and capabilities of the Board and its committees, consistent with our Corporate Governance Guidelines and other criteria established by the Board. The Nomination and Governance Committee’s objective is to create a well-balanced Board that combines broad business and industry experience with comprehensive background characteristics and professional viewpoints. Together, these considerations enable us to appropriately pursue our strategic objectives domestically and abroad.

Qualifications for Board service have not otherwise been reduced to a checklist of specific standards or minimum qualifications, skills or qualities. Rather, the Nomination and Governance Committee decides which nominees to recommend based on the facts and circumstances at the time. Applicable considerations for new nominees or for directors potentially standing for re-election include:

		2026 PROXY STATEMENT |		9

Of particular interest in recent searches were individuals with experience in the banking and technology sectors.

The full Board is responsible for the final approval of any director nominee. Maura A. Markus and Dr. Colin J. Parris, have each been serving as directors since August 2024. Patrick J. Byrne, Matthew J. Espe, Mark Gross and David H. Naemura have been serving as directors since September 2023. Arthur F. Anton was elected to the Board at the 2019 Annual Meeting of Stockholders. The Nomination and Governance Committee believes that each of our nominees for director satisfies the qualifications described above and brings valuable experience, skills and qualifications to the Board.

STOCKHOLDER NOMINEES

POLICY & PROCEDURE

The policy of the Nomination and Governance Committee is to consider properly submitted stockholder nominations for candidates for membership on the Board as described above under “Identification and Evaluation of Director Nominees.” In evaluating stockholder nominations, the Nomination and Governance Committee considers whether the nominee will contribute to the balance of knowledge, experience and capability of the Board and is able to satisfy the membership criteria set forth above.

The Nomination and Governance Committee will consider any stockholder nominations for director that are properly proposed and meet the requirements set out in our Bylaws, which include but are not limited to:

Stockholder nominations should be addressed to Diebold Nixdorf, Incorporated, Attention: Corporate Secretary, 350 Orchard Avenue NE, P.O. Box 3077, North Canton, Ohio 44720. For important additional information related to proposal requirements, including requirements concerning the timing of stockholder nominations, see “Stockholder Proposals” below.

PROXY ACCESS

Our Bylaws provide for proxy access, which allows a stockholder, or a group of up to 20 stockholders in the aggregate, who or which has owned 3% or more of our outstanding shares of common stock continuously for at least three years, to nominate director nominees constituting up to 20% of the number of directors in office or two nominees, whichever is greater, provided that the stockholder(s) and the nominee(s) satisfy the requirements specified in our Bylaws. Nominees who are submitted by stockholders (or groups) meeting the proxy access requirements and who themselves meet the requirements specified in our Bylaws will be included in our proxy materials for consideration by our stockholders at the applicable stockholder meeting.

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VOTE REQUIRED

Since this is an uncontested election (the number of nominees does not exceed the number of Director positions available), each nominee who receives the affirmative “for” vote from a majority of the votes cast (meaning the number of shares voted “for” a nominee must exceed the number of shares voted “against” such nominee) by stockholders who are present or represented by proxy at the 2026 Annual Meeting of Stockholders and entitled to vote in the election of directors will be elected to serve as a director until the 2027 Annual Meeting of Stockholders. “Abstain” votes and broker non-votes are not considered votes cast and will have no effect on the outcome of this Proposal 1.

RECOMMENDATION OF THE BOARD

The Board recommends that stockholders vote FOR each of its eight director nominees.

		2026 PROXY STATEMENT |		11

PROPOSAL 2: RATIFICATION OF APPOINTMENT OF OUR INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

OVERVIEW

The Audit Committee has appointed KPMG LLP, our independent registered public accounting firm since 1965, to examine our accounts and other records for the year ending December 31, 2026. This appointment is being presented to you for ratification at the 2026 Annual Meeting of Stockholders. If the stockholders fail to ratify the appointment, the Audit Committee will reconsider KPMG LLP’s selection as the Company’s independent registered public accounting firm. KPMG LLP has no financial interest, direct or indirect, in us or any of our subsidiaries.

A representative of KPMG LLP is expected to be present at the 2026 Annual Meeting of Stockholders to make a statement if he or she desires and to respond to appropriate questions.

AUDIT AND NON-AUDIT FEES

The following table shows the aggregate fees billed to us for the annual audit and the review of the interim financial statements and other services provided by KPMG LLP for fiscal years 2025 and 2024.

POLICY ON AUDIT COMMITTEE PRE-APPROVAL OF AUDIT AND PERMISSIBLE NON-AUDIT SERVICES OF OUR INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Consistent with SEC policies regarding auditor independence, the Audit Committee has responsibility for appointing, setting compensation and overseeing the work of our independent registered public accounting firm. In recognition of this responsibility, the Audit Committee has established a policy to pre-approve all audit and non-audit services provided by the independent registered public accounting firm.

These services may include audit services, audit-related services, tax services and other services. Pre-approval is generally provided for, and any pre-approval is detailed as to the particular service or category of services and is generally subject to a

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specific budget. The Audit Committee has delegated pre-approval authority to the Chair of the Audit Committee when expedition of services is necessary, provided that the Chair must report any decisions to pre-approve to the full Audit Committee at its next scheduled meeting. All of the fees included under the categories “Audit-Related Fees,” “Tax Fees” and “All Other Fees” above were pre-approved by the Audit Committee. None of these fees were approved by the Audit Committee after services were rendered pursuant to the de minimis exception established by the SEC.

VOTE REQUIRED

The affirmative “for” vote by a majority of the votes cast by stockholders who are present or represented by proxy at the 2026 Annual Meeting of Stockholders is required to approve this Proposal 2. Brokers are expected to be able to vote on this Proposal 2 without receiving express instruction from a beneficial owner. Accordingly, there are expected to be no broker non-votes with respect to this Proposal 2. “Abstain” votes are not considered votes cast and will have no effect on the outcome of this Proposal 2.

RECOMMENDATION OF THE BOARD

The Board recommends a vote FOR the approval of this Proposal 2.

		2026 PROXY STATEMENT |		13

PROPOSAL 3: APPROVAL, ON A NON-BINDING ADVISORY BASIS, OF THE COMPENSATION OF THE COMPANY’S NAMED EXECUTIVE OFFICERS

OVERVIEW

As required by Section 14A of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and pursuant to Rule 14a-21(a) promulgated thereunder, we are providing our stockholders the opportunity to cast an advisory (non-binding) vote on the compensation paid to our named executive officers. While this is an advisory vote, and therefore not binding on us, the Board values the opinions of our stockholders. The People and Compensation Committee reviews the results of voting on this proposal and takes them into consideration when making future decisions regarding named executive officer compensation. Under current Board policy, the advisory vote for approval of named executive officer compensation occurs annually. After the 2026 Annual Meeting of Stockholders, the next such vote will occur at our 2027 Annual Meeting of Stockholders.

The “Compensation Discussion and Analysis” and “Executive Compensation Tables” sections of this Proxy Statement describe our executive compensation program in detail, as well as the decisions and rationale of our People and Compensation Committee in regard to that program. Our executive pay program is designed to enable us to attract, retain and motivate high quality executives who will provide us with dynamic leadership and are instrumental to our success. We emphasize performance-based variable pay by delivering a substantial portion of executive compensation opportunities through annual cash bonuses and long-term incentives and seek to provide total pay that is commensurate with our performance and competitive with our peer group. Accordingly, we are asking our stockholders to vote FOR the following resolution:

“RESOLVED, that the compensation of our named executive officers as disclosed pursuant to the compensation rules of the Securities and Exchange Commission, including the Compensation Discussion and Analysis, the compensation tables and any related material disclosed in this Proxy Statement, is hereby APPROVED.”

VOTE REQUIRED

The affirmative “for” vote by a majority of the votes cast by stockholders who are present or represented by proxy at the 2026 Annual Meeting of Stockholders is required to approve this Proposal 3. “Abstain” votes and broker non-votes are not considered votes cast and will have no effect on the outcome of this Proposal 3.

RECOMMENDATION OF THE BOARD

The Board recommends a vote FOR the approval of this Proposal 3.

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CORPORATE GOVERNANCE

Our Board is committed to strong corporate governance principles and practices to ensure that the Board most effectively and efficiently serves its oversight obligations. This section provides an overview of the current organization of the Board, its committees, responsibilities and other related topics and initiatives.

BOARD LEADERSHIP STRUCTURE

Since September 2023, the Board has separated the roles of Chair and Chief Executive Officer, and since that time Patrick J. Byrne has served as non-executive Chair of the Board.

The Board does not maintain a policy requiring the Chair to be a non-executive Board member, nor does it require the Chair and Chief Executive Officer roles to be separated. However, when the Chair is also an executive of the Company, the independent members of the Board have historically appointed a Lead Independent Director. The Lead Independent Director is selected among the Board’s independent directors and the role’s duties include, among others, presiding at all meetings of the Board at which the Chair is not present, presiding over executive sessions of the independent directors, and providing direction on agendas, schedules, and materials for Board meetings.

The Board will continue to periodically assess and adjust our leadership structure as needed in consideration of emerging corporate governance standards, market practices and our specific circumstances and needs.

BOARD AND DIRECTOR EVALUATION

In accordance with governance best practices and stock exchange requirements, the Nomination and Governance Committee has oversight responsibility for the annual evaluation of the overall performance and effectiveness of the Board and each Board committee. The nature and format of the Board evaluation process is fluid and is structured in the fashion that is expected to provide the Board with the most useful and actionable information. In 2025, the Board conducted its evaluation through individual interviews with each director, led by the Chair of the Nomination and Governance Committee and the Corporate Secretary and subsequently held a live discussion during which the Board discussed its performance, as well as its opportunities to further enhance its performance and effectiveness in the coming year.

BOARD MEETINGS AND EXECUTIVE SESSIONS

The Board held five regular meetings and one special meeting during 2025.

All of our directors attended 75% or more of the aggregate of all meetings of the Board and the Board committees on which they served in 2025.

In accordance with the NYSE’s corporate governance standards, our independent directors regularly meet in executive session without management present, generally following each regularly scheduled Board meeting. In addition, on occasion, our directors will meet in executive session prior to the start of a Board meeting. Since his appointment to the Board, Mr. Byrne, our non-executive Board Chair, has presided over these executive sessions. The executive sessions of each Board committee are overseen by the respective committee chair.

While we do not have a formal policy regarding directors’ attendance at the Annual Meeting of Stockholders, it is expected that all directors attend the Annual Meeting of Stockholders unless there are extenuating circumstances for non-attendance. Each director who was a director as of the 2025 Annual Meeting of Stockholders attended that meeting.

		2026 PROXY STATEMENT |		15

BOARD RISK OVERSIGHT

The Board and its committees collectively play an active role in overseeing management of our risks and in helping establish an appropriate risk tolerance for the Company. The Board oversees our risk strategy and effectiveness; however, management is responsible for identifying risks inherent in our business and implementing and supervising day-to-day risk management and mitigation. In addition to discussion of risk management with the full Board, the Board and the appropriate committees receive regular reports from our senior management on areas of material risk within the committee’s substantive focus, including operational, financial, strategic, compliance, cybersecurity, competitive, reputational, and legal and regulatory risks. The Board also meets with senior management as part of each Board meeting, and more frequently as needed, to discuss strategic planning, including the key risks inherent in our short- and long-term strategies. Senior management then provides the Board with periodic updates throughout the year with respect to these strategic initiatives and the impact and management of these key risks.

We also have robust internal dialogue among our operations, information security, technology, finance, compliance, treasury, tax, legal and internal audit departments, among others, whenever a potential risk arises. These discussions are escalated to our President and Chief Executive Officer, Chief Financial Officer, Chief Accounting Officer, Chief Administrative Officer, General Counsel, and/or Chief Information Security Officer, Vice President, Internal Audit and other Vice Presidents of our various divisions and regions, as appropriate, with open lines of communication among them, the Board’s committees, and the entire Board.

We believe that the Board’s approach and continued evaluation of its risk oversight enhances its ability to assess the various risks, make informed cost-benefit decisions, and approach emerging risks in a proactive manner for the Company. We also believe that our Board leadership structure complements our risk management structure because it allows our independent directors to exercise effective oversight of the actions of management in identifying risks and implementing effective risk management policies and controls.

BOARD COMMITTEES AND COMPOSITION

The Board’s current standing committees are the Audit Committee, Nomination and Governance Committee, and People and Compensation Committee. Each committee’s members, its meetings during 2025, and its functions are described below. The Board reviews committee membership, charters and responsibilities every year and will do so again following the 2026 Annual Meeting of Stockholders.

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CORPORATE GOVERNANCE MATERIALS AVAILABLE ON OUR WEBSITE

Copies of the following documents, among others, are available on our investor relations website (investors.dieboldnixdorf.com) in the Governance section under the Policies and Charters tab:

The Company’s website and the information contained therein or connected thereto are not intended to be incorporated by reference into this Proxy Statement.

For a discussion of our Insider Trading Policy, which prohibits hedging or pledging of our shares by our directors, officers and employees, see “Compensation Discussion and Analysis—Insider Trading Policy” below.

DIRECTOR INDEPENDENCE

The Board determined that each of our current directors, Patrick J. Byrne, Arthur F. Anton, Matthew J. Espe, Mark Gross, Maura A. Markus, David H. Naemura, and Dr. Colin J. Parris, has no material relationship with the Company and is independent under our director independence standards, the NYSE’s director independence standards, and the SEC’s independence requirements, as applicable and as currently in effect. In making these determinations, the Board considered the business, professional or familial relationships of each of the directors in 2025, including relationships between the Company and related entities where our directors also serve as directors (which relationships the Board considered as part of its determinations and concluded did not impair the independence of the respective director). Octavio Marquez does not satisfy these independence standards because he is employed by us as our President and CEO in addition to his role as director.

RELATED PERSON TRANSACTION POLICY

Pursuant to our director independence standards, discussed above, and our Corporate Governance Guidelines, we do not engage in transactions with non-employee directors or their affiliates if a transaction would cause an independent director to no longer be deemed independent, would present the appearance of a conflict of interest or is otherwise prohibited by law, rule or regulation. This includes, directly or indirectly, any extension, maintenance or renewal of an extension of credit to any of our directors. This prohibition also includes significant business dealings with directors or their affiliates, charitable contributions that would require disclosure in our Proxy Statement under the rules of the NYSE, and consulting contracts with, or other indirect forms of compensation to, a director. Any waiver of this policy may be made only by the Board and must be promptly disclosed to our stockholders.

In 2025, we did not engage in any related person transaction(s) requiring disclosure under Item 404 of Regulation S-K.

COMMUNICATIONS WITH DIRECTORS

The Company’s Board of Directors provides a process for stockholders to send communications to the Board. Stockholders and interested parties may communicate with our Audit, Nomination and Governance, and People and Compensation Committee Chairs by sending an email to the address provided in the applicable committee description above or with our non-employee directors as a group by sending an email to boardlogistics@dieboldnixdorf.com.

Communications may also be directed in writing to such person or group at Diebold Nixdorf, Incorporated, Attention: Corporate Secretary, 350 Orchard Avenue NE, P.O. Box 3077, North Canton, Ohio 44720. The independent members of the Board have approved a process for handling communications we receive that are addressed to non-employee members of the Board. Under that process, the Corporate Secretary will review all such communications and determine whether communications require immediate attention. The Corporate Secretary will forward communications, or a summary of communications, to the appropriate director or directors.

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CODE OF BUSINESS ETHICS

Our directors, executive officers and employees are required to comply with the policies and protocols concerning business ethics and conduct provided in our Code of Business Ethics. The Code of Business Ethics ties our core values to the ethical principles that guide our business decisions. The Code of Business Ethics also provides clear information on the resources available for directors, executive officers and employees to ask questions and report unethical behavior. All directors have received training specific to the Code of Business Ethics.

The Code of Business Ethics applies to us, including all of our domestic and international affiliates and subsidiaries. The Code of Business Ethics describes certain responsibilities that our directors, executive officers and employees have to the Company, to each other and to our global partners and communities. It covers many topics, including compliance with laws, including the Foreign Corrupt Practices Act and relevant global anti-corruption laws, conflicts of interest, protection of intellectual property and competitive and confidential information, as well as maintenance of a respectful and non-retaliatory workplace. The Code of Business Ethics also includes and links to our Conflicts of Interest Policy, which further details the requirements for our directors, officers and employees to avoid conflicts and disclose any potential conflicts, including conflicts that may result from related party transactions. In addition, our employees are required to report any conduct that they believe in good faith to be a violation of the Code of Business Ethics.

Our Audit Committee has procedures to receive, retain and evaluate complaints regarding accounting, internal financial controls or auditing matters, and to allow for the confidential and anonymous submission of concerns regarding questionable practices or potential violations of our policies, including the Code of Business Ethics.

The Code of Business Ethics is posted under the “Governance – Policies and Charters” portion of our investor relations website (www.investors.dieboldnixdorf.com). A copy of the Code of Business Ethics is available in print (free of charge) to any stockholder who requests a copy by writing to: Diebold Nixdorf, Incorporated, Attention: Corporate Secretary, 350 Orchard Avenue NE, P.O. Box 3077, North Canton, Ohio 44720. The Company will disclose on its website at www.investors.dieboldnixdorf.com, to the extent and in the manner permitted by Item 5.05 of Form 8-K, the nature of any amendment to the Code of Business Ethics (other than technical, administrative, or other non-substantive amendments) and our approval of any material departure from a provision of the Code of Business Ethics that has been made known to any of our executive officers.

PEOPLE AND COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

The members of our People and Compensation Committee during the year ended December 31, 2025 were Matthew J. Espe, Patrick J. Byrne, Maura A. Markus, and David H. Naemura. No member of the People and Compensation Committee is currently, or was during the year ended December 31, 2025, an officer or employee of the Company or any of its subsidiaries or affiliates. During the year ended December 31, 2025, no member of the People and Compensation Committee had a relationship that is required to be disclosed under SEC rules regarding related-party transactions. During the year ended December 31, 2025, none of the Company’s executive officers served on a board of directors or compensation committee (or a committee serving a similar function) of any entity that had one or more of its executive officers serving on the Company’s Board of Directors or the People and Compensation Committee.

DIRECTOR ORIENTATION AND EDUCATION

The onboarding process for new directors includes extensive one-on-one meetings between each new director and our executive leaders, travel to our facilities in Ohio to further engage with management and to visit our operations, and formal and informal Board meetings which, in addition to addressing substantive matters are intended to develop partnership and teamwork among the Board. As part of our onboarding efforts, we seek to educate new directors on the fiduciary and public company obligations of Board members, the history of our Company, our strategic plans, significant financial matters, organizational and operational overview, core values, ethics and compliance programs (including our Code of Business Ethics), corporate governance practices and other key policies and practices.

SUSTAINABILITY

As a global company, we are committed to protecting the environment, caring for our people and the communities in which we live and work, and continually enhancing our governance to ensure best practices in all we do as an organization. We strive to advance solutions and practices that are sustainable, equitable and best in class as a corporate citizen. Our ESG Report is available on our website at https://www.dieboldnixdorf.com/en-us/about-us/esg/. The Company’s website and the information contained therein or connected thereto are not intended to be incorporated by reference into this Proxy Statement.

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OWNERSHIP OF OUR SECURITIES

BENEFICIAL OWNERSHIP OF SHARES

The table below sets forth the beneficial ownership of each person who has publicly reported ownership of more than 5% of the Company’s shares of common stock. To our knowledge, except for the stockholders listed below, no person beneficially owned more than 5% of our outstanding shares of common stock as of March 23, 2026. The information provided below was derived from reports filed with the SEC by the beneficial owners on the dates indicated in the footnotes below.

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SECURITY OWNERSHIP OF DIRECTORS AND MANAGEMENT

The following table shows the beneficial ownership of the Company’s shares of common stock, including those shares that individuals have a right to acquire (for example, through the exercise of options) within the meaning of Rule 13d-3(d)(1) under the Exchange Act, by (1) each director and nominee, (2) each of our named executive officers, and (3) all directors and executive officers as a group as of March 23, 2026.

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EQUITY COMPENSATION PLAN INFORMATION

The following table shows the Equity Compensation Plan Information of the Company for year ending December 31, 2025.

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COMPENSATION OF DIRECTORS

Director compensation is determined by the Board at the recommendation of the People and Compensation Committee. With respect to the Company’s non-employee directors, it is our goal to provide directors with fair and competitive compensation that also enhances their alignment with the interests of our stockholders. Each non-employee director may receive equity awards under our Diebold Nixdorf, Incorporated 2023 Equity and Incentive Plan (the “2023 Plan”). Historically, we have aimed to provide a balanced mix of cash and equity compensation to our directors that targets the directors’ total pay at the median of a peer group of companies in similar industries and of comparable size and revenue. This peer group is the same group used by our People and Compensation Committee for benchmarking executive compensation, which is discussed in more detail below in “Role of Peer Companies and Competitive Market Data” under “Compensation Discussion and Analysis.” A director may elect to defer receipt of all or a portion of his or her compensation pursuant to the Deferred Compensation Plan No. 2 for Directors, as amended.

2025 DIRECTOR COMPENSATION PROGRAM

Cash retainers for directors are fixed at an annual rate of compensation, but are paid to the directors in equal, quarterly installments. The fees for a director who joins or leaves the Board or assumes additional responsibilities during the year are pro-rated for his or her period of actual service.

Our non-employee directors receive a cash retainer at an annual rate of $100,000. Our non-executive Chairman of the Board receives an additional cash retainer at an annual rate of $100,000. In addition, non-employee directors who serve as the chair for a Board committee will receive an additional annual cash retainer at an annual rate of $25,000 for each chair role. Directors do not receive an additional cash retainer for service on a committee (other than as Chair).

Additionally, non-employee directors receive an annual restricted stock unit (“RSU”) grant having an aggregate grant date value equal to $200,000. However, no non-employee director who received the 2023 director emergence grants (described below) will be eligible to receive an annual RSU grant until the 2023 director emergence grants have fully and completely vested in September of 2027.

2023 DIRECTOR EMERGENCE GRANTS

In connection with the Company’s reorganization in August 2023, the Company awarded certain RSUs and options to its directors at the time. Following emergence from the reorganization process, in December 2023 the Company awarded a one-time grant of 40,000 RSUs to each non-employee director. This grant approximated $1,160,000 in value at the time of grant. Each RSU award provides for dividend equivalent rights, which permits the director to receive, on the RSU settlement date, the aggregate cash value of all dividends that were paid to holders of Company common stock during the vesting period of the RSUs. Additionally, the Company awarded each non-employee director a one-time option grant covering 80,000 shares of common stock at an aggregate grant date fair value of $1,162,400 and awarded the non-executive Chairman of the Board a one-time option grant of 100,000 shares of common stock at an aggregate grant date fair value of $1,453,000. These RSUs and options vest in equal annual installments over a four-year period and were intended to provide the directors with a significant performance incentive and a direct connection to our stockholders by providing the directors with a significant four-year equity stake in the Company at once, rather than by providing annual equity grants over the next four years.

DIRECTOR STOCK OWNERSHIP GUIDELINES

The Board has adopted ownership guidelines to align with the practices of our peer group (discussed further below under “Role of Peer Companies and Competitive Market Data” under “Compensation Discussion and Analysis”) which are intended to build share ownership among non-employee directors and ensure that their long-term economic interests are aligned with those of other stockholders. Each non-employee director is expected to own shares of common stock of the Company valued at least five times his or her annual cash retainer. Both unvested and deferred shares and shares of Company common stock owned outright are counted toward achievement of the guidelines.

		2026 PROXY STATEMENT |		23

2025 DIRECTOR COMPENSATION

The following table details the compensation of our non-employee directors for 2025: