rmni-20260424

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934


Filed by the Registrant x						Filed by a Party other than the Registrant ¨

Check the appropriate box:


¨			Preliminary Proxy Statement


¨			Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))


x			Definitive Proxy Statement


¨			Definitive Additional Materials


¨			Soliciting Material under §240.14a-12

RIMINI STREET, INC.

(Name of Registrant as Specified In Its Charter)

N/A

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

Payment of Filing Fee (Check the appropriate box):


x			No fee required.

¨			Fee paid previously with preliminary materials.

¨			Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

Dear Stockholder:

Notice is hereby given that the annual meeting of the stockholders (the “Annual Meeting”) of Rimini Street, Inc., a Delaware corporation (the “Company”), will be held on Wednesday, June 3, 2026, at Noon, Pacific Time. To allow our stockholders to participate regardless of geographic location, our 2026 Annual Meeting will be held by means of a live, virtual-only online audio webcast.

MEETING INFO

ITEMS OF BUSINESS

DATE AND TIME

Wednesday, June 3, 2026 at Noon, Pacific Time

The Annual Meeting is being held for the following purposes (which are more fully described in the accompanying Proxy Statement):

1.To elect the Class III director nominees identified in the accompanying Proxy Statement to the Board of Directors of the Company, each to hold office until the 2029 annual meeting of stockholders and until his successor is elected and qualified.

2.To conduct an advisory vote to approve the Company’s executive compensation.

3.To ratify the appointment of KPMG LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026.

4.To transact such other business as may properly come before the Annual Meeting or any adjournments or postponements thereof.

RECORD DATE

April 15, 2026

MEETING WEBSITE

www.cstproxy.com/riministreet/2026

The Annual Meeting will be a virtual meeting of stockholders, which will be conducted live via audio webcast. For instructions on how to attend, vote your shares and/or submit written questions during the Annual Meeting, see the information in the accompanying Proxy Statement in the sections titled “Access to the 2026 Virtual-Only Annual Meeting” and “Questions and Answers about the Annual Meeting and Voting — How can I attend and vote at the Annual Meeting?”

Whether or not you plan to attend the Annual Meeting, you are encouraged to read the accompanying Proxy Statement and then cast your vote as promptly as possible in accordance with the instructions provided. Submitting a vote before the Annual Meeting will not preclude you from updating your vote online during the Annual Meeting before voting polls are closed.

Our mission is to enable our clients to better control their IT roadmap by offering a comprehensive portfolio of unified software support services and related ERP solutions – designed to be funded within existing budgets – to accelerate the vision of Transformation without Disruption,™ empowering clients to put technology to work to produce more efficient business outcomes to provide a competitive advantage and facilitate growth.

SUPPORT

OPTIMIZE

INNOVATE


Who can vote:			Stockholders of record of the Company’s common stock at the close of business on April 15, 2026 (the "Record Date”) are entitled to notice of, and to attend and vote at, the Annual Meeting and any postponement or adjournment thereof.
Who may attend:			All stockholders are cordially invited to attend the Annual Meeting. To receive access to the virtual-only Annual Meeting, registered stockholders and beneficial stockholders (those holding shares through a stock brokerage account or by a bank or other holder of record) will need to follow the instructions applicable to them provided in the accompanying Proxy Statement in the section titled “Access to the 2026 Virtual-Only Annual Meeting.”
How you can vote:			Prior to the Annual Meeting, you may vote your proxy by (i) accessing the internet website specified on your proxy card or (ii) marking, signing and returning the enclosed proxy card in the pre-paid postage envelope provided. Stockholders who received their proxy card or voting instruction card through an intermediary (such as a broker or bank) must deliver it in accordance with the instructions given by such intermediary. During the virtual-only Annual Meeting, you or your proxy holder will be able to submit written questions and to vote at the meeting by visiting www.cstproxy.com/riministreet/2026. To receive access to the virtual-only Annual Meeting, registered stockholders and beneficial stockholders (those holding shares through a stock brokerage account or by a bank or other holder of record) will need to follow the instructions applicable to them provided in the accompanying Proxy Statement.

We look forward to the opportunity to interact with our stockholders at the 2026 Annual Meeting.


						By Order of the Board of Directors Rimini Street, Inc.

						Sincerely,

						/s/ Seth A. Ravin
1700 S. Pavilion Center Drive Suite 330 Las Vegas, Nevada 89135						Seth A. Ravin President, Chief Executive Officer and Chairman of the Board

April 30, 2026

Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting to be Held on June 3, 2026:

This Notice of Annual Meeting of Stockholders and Proxy Statement and our 2025 Annual Report are available at https://www.cstproxy.com/riministreet/2026 and through our website at www.riministreet.com.

YOUR VOTE IS IMPORTANT

Whether or not you expect to attend the virtual-only Annual Meeting, you are urged to vote either via the internet website specified on your proxy card or by marking, signing and returning the enclosed proxy card in the pre-paid postage envelope provided. If you hold shares of common stock through a broker, bank or other nominee, your broker, bank or other nominee will vote your shares for you if you provide instructions on how to vote the shares. In the absence of instructions, your brokerage firm, bank or other nominees can only vote your shares on certain limited matters. It is important that you provide voting instructions because brokers, banks and other nominees do not, for example, have the authority to vote your shares for the election of directors without instructions from you.

TABLE OF CONTENTS


PROXY STATEMENT			1
ACCESS TO THE 2026 VIRTUAL-ONLY ANNUAL MEETING			2
QUESTIONS AND ANSWERS ABOUT THE ANNUAL MEETING AND VOTING			4
PROPOSAL NO. 1 — ELECTION OF CLASS III DIRECTOR NOMINEES			9
Nominees			9
Board Composition			9
Class III Director Nominees — Biographical Information			10
Continuing Directors — Biographical Information			11
Director Nomination Process			12
Board of Directors Recommendation			12
Vote Required			13
CORPORATE GOVERNANCE MATTERS			13
Board Structure			13
Corporate Governance Guidelines			15
Code of Business Conduct and Ethics			15
Board Leadership Structure			15
Board Determination of Independence			16
Board of Director Meetings and Attendance; Annual Meeting Attendance			16
Stockholder Communications			17
Standing Committees of the Board of Directors			17
The Board’s Role in Risk Oversight			19
Compensation Committee Interlocks and Insider Participation			20
Policies and Procedures for Related Person Transactions and Insider Trading Policies and Procedures			20
Related Person Transactions			21
Employee, Officer and Director Hedging			21
CORPORATE MISSION AND VALUES			22
Our Mission			22
Our “4Cs”			22
ESG Oversight			22
Human Capital Resources — RMNI LOVE™			22
COMPENSATION DISCUSSION AND ANALYSIS			25
Executive Summary			25
Executive Compensation Philosophy and Objectives			29
Executive Compensation Review and Determination			30
Key Elements of our Executive Compensation Program and 2025 NEO Compensation			32
Compensation Risk Assessment			41
REPORT OF THE COMPENSATION COMMITTEE OF THE BOARD OF DIRECTORS			42
EXECUTIVE COMPENSATION TABLES			43
Summary Compensation Table			43
2025 Grants of Plan-Based Awards			45
Outstanding Equity Awards at Fiscal Year End 2025			47
Options Exercised and Stock Vested			49
Potential Payments upon Termination or Change-in-Control			49
Securities Authorized for Issuance Under Equity Compensation Plans			53
CEO PAY RATIO			54
PAY VERSUS PERFORMANCE			55
PROPOSAL NO. 2 — ADVISORY VOTE TO APPROVE EXECUTIVE COMPENSATION			59
Background			59


Proposal			59
Board of Directors Recommendation			59
Vote Required			59
DIRECTOR COMPENSATION			60
PROPOSAL NO. 3 — PROPOSAL TO RATIFY THE APPOINTMENT OF KPMG LLP AS THE COMPANY’S INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR THE FISCAL YEAR ENDING December 31, 2026			62
Background			62
Board of Directors Recommendation			62
Vote Required			62
KPMG Representative — Attendance at the Annual Meeting			62
FEES PAID TO AUDITORS			63
Policy on Pre-Approval of Audit and Permissible Non-Audit Services of Independent Auditors; Delegation of Pre-Approval Authority in Specified Instances			64
REPORT OF THE AUDIT COMMITTEE OF THE BOARD OF DIRECTORS			65
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT			66
OTHER MATTERS AND ADDITIONAL INFORMATION			69
Householding of Proxy Materials			69
Deadlines for Stockholder Proposals and Director Nominations to be Presented at the Next Annual Meeting			69
Availability of Annual Report to Stockholders and Report on Form 10-K			69
Other Matters to be Presented for Action at the Annual Meeting			70
Appendix A — Reconciliation of Non-GAAP Financial Measures			A

PLEASE CAREFULLY READ THE PROXY STATEMENT. EVEN IF YOU EXPECT TO ATTEND THE VIRTUAL-ONLY ANNUAL MEETING, PLEASE PROMPTLY COMPLETE, EXECUTE, DATE AND RETURN THE ENCLOSED PROXY CARD IN THE ACCOMPANYING POSTAGE-PAID ENVELOPE. NO POSTAGE IS NECESSARY IF MAILED IN THE UNITED STATES. YOU MAY ALSO VOTE ELECTRONICALLY VIA THE INTERNET BY FOLLOWING THE INSTRUCTIONS ON THE PROXY CARD. IF YOU VOTE BY INTERNET, THEN YOU NEED NOT RETURN A WRITTEN PROXY CARD BY MAIL. STOCKHOLDERS WHO ATTEND THE VIRTUAL-ONLY ANNUAL MEETING MAY REVOKE THEIR PROXIES AND VOTE ON-LINE DURING THE ANNUAL MEETING UNTIL VOTING POLLS ARE CLOSED IF THEY SO DESIRE.


RIMINI STREET, INC. PROXY STATEMENT FOR THE ANNUAL MEETING OF STOCKHOLDERS To be Held Wednesday, June 3, 2026

PROXY STATEMENT

The following information is provided to each eligible stockholder, as explained in the section captioned “Questions and Answers About the Annual Meeting and Voting,” below, in connection with the Annual Meeting of Stockholders (the “Annual Meeting”) of Rimini Street, Inc. (the “Company”) to be held via live, virtual-only online audio webcast on Wednesday June 3, 2026, at Noon, Pacific Time.

The enclosed proxy is for use at the Annual Meeting and any postponement or adjournment thereof. This proxy statement (this “Proxy Statement”) and form of proxy are being mailed to stockholders beginning on or about April 30, 2026.

The Company’s principal executive offices are located at 1700 S. Pavilion Center Drive, Suite 330, Las Vegas, Nevada 89135, and the Company’s website is www.riministreet.com.

PROPOSALS AND VOTING RECOMMENDATIONS

Proposal

Description

Board Voting Recommendation

Page

Election of Class III Directors

FOR EACH DIRECTOR NOMINEE

Say on Pay

FOR

Auditor Ratification

FOR

Rimini Street, Inc. | 1

ACCESS TO THE 2026 VIRTUAL-ONLY ANNUAL MEETING

There will be no in-person component to the Annual Meeting, which will be held by means of a live, virtual-only online audio webcast. Only (i) stockholders of record of our common stock at the close of business on April 15, 2026 (the “Record Date”) and (ii) beneficial owners of our common stock as of the Record Date who possess a qualifying control number will be entitled to attend, ask questions during and vote during the virtual-only Annual Meeting. Other beneficial owners may attend the virtual-only Annual Meeting as guests but may not submit questions or vote during the Annual Meeting unless they receive a legal proxy from their broker or other agent, as described below.

Annual Meeting Website

The live audio webcast of the virtual-only Annual Meeting will be accessible through our Annual Meeting website, and a replay will be made available after the meeting. In addition, our Annual Meeting website includes information regarding how to vote, the vote recommendations of our Board of Directors (the “Board”), contact information and related meeting documentation. Our Annual Meeting website is www.cstproxy.com/riministreet/2026.

Registered Stockholders — Attending, Voting and Submitting Questions During the Virtual-Only Annual Meeting

If your shares are registered in your name with our transfer agent, Continental Stock Transfer & Trust Company (“Continental Stock Transfer”), and you wish to attend the virtual-only Annual Meeting, go to www.cstproxy.com/riministreet/2026 just prior to the start of the meeting and enter the control number printed on your proxy card.

Registered stockholders can vote prior to the date and time of the Annual Meeting by following the instructions on their proxy cards. Also, registered stockholders can vote or change their vote by visiting our Annual Meeting website and using the vote link at any time before or during the meeting until the voting polls are closed.

Beneficial Stockholders — Attending, Voting and Submitting Questions During the Virtual-Only Annual Meeting

If on the Record Date your shares were held, not in your name, but rather in an account at a brokerage firm, bank, dealer or other similar organization, then you are the beneficial owner of shares held in “street name” and this Proxy Statement is being forwarded to you by that organization. The organization holding your account is considered to be the stockholder of record for purposes of voting at the Annual Meeting. As a beneficial owner, you have the right to direct your broker or other agent regarding how to vote the shares in your account. You are also invited to attend the Annual Meeting. However, since you are not the stockholder of record, you may not vote your shares online via our Annual Meeting website or ask questions during the meeting unless: (i) your voting instruction card and this Proxy Statement was forwarded to you on behalf of your broker or other agent by either Broadridge Communications Solutions, Inc. (“Broadridge”) or Mediant, a BetaNXT Inc. company (“Mediant”), or (ii) you obtain a legal proxy from your broker or other agent, as described further below.

•If you wish to vote and submit questions during the virtual-only Annual Meeting and your voting instruction card and this Notice was forwarded to you by either Broadridge or Mediant, you will need the control number included on your voting instruction card (if you received a printed copy of the proxy materials) or included in the email to you (if you received your proxy materials by email) in order to be able to vote your shares and submit questions during the Annual Meeting via our Annual Meeting website.

•All other beneficial owners who wish to attend the virtual-only Annual Meeting must obtain a legal proxy by contacting their account representative at the bank, broker, or other nominee that holds their shares and e-mailing a copy (a legible photograph is sufficient) of their legal proxy to proxy@continentalstock.com. Beneficial owners who submit a valid legal proxy to Continental Stock Transfer will be emailed a meeting control number with instructions for logging into the Annual Meeting website. Beneficial owners should contact Continental Stock Transfer for this purpose no later than 3:00 p.m., Eastern Time, on June 2, 2026. If you are unable to obtain a legal proxy, you may attend the virtual-only Annual Meeting as a guest by entering your name and email address into our Annual Meeting website just prior to the start of the meeting. However, you will not be able submit questions or vote during the meeting via our Annual Meeting website.

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Conduct of the Meeting

Stockholders participating in the virtual-only Annual Meeting will be in a listen-only mode and will not be able to speak during the Annual Meeting webcast. However, to maintain the interactive nature of the Annual Meeting, eligible attendees will be able to:

•Vote using the Annual Meeting website; and

•Submit questions in writing to the Company’s directors and officers during the meeting via the virtual-only Annual Meeting website.

Eligible attendees may submit questions during the Annual Meeting via the virtual-only Annual Meeting website by typing in the “Submit a Question” box.

The Annual Meeting website is accessible at www.cstproxy.com/riministreet/2026.

Rimini Street, Inc. | 3

QUESTIONS AND ANSWERS ABOUT THE ANNUAL MEETING AND VOTING

Q: What is this document?

A: This document is the Proxy Statement of Rimini Street, Inc., which is being sent to stockholders in connection with our Annual Meeting. A proxy card is also being provided with this document.

Throughout this Proxy Statement, we refer to Rimini Street, Inc. as “we,” “us,” “our,” the “Company” or “Rimini Street.”

Q: Why am I receiving these materials?

A: You are receiving these materials because you were one of our stockholders as of the close of business on the Record Date for determining who is entitled to receive notice of and to vote at the Annual Meeting. We are soliciting your proxy (i.e., your permission) to vote your shares of Rimini Street common stock upon matters to be considered at the Annual Meeting.

Q: Who may vote at the Annual Meeting? What are my voting rights?

A: Our stockholders as of the close of business on the Record Date are entitled to notice of and to vote at the Annual Meeting or any postponement or adjournment thereof. Stockholders do not have cumulative voting rights.

Holders of shares of our common stock may cast one vote for each share of common stock held as of the Record Date on the director nominees and on each of the other matters presented at the Annual Meeting. As of the Record Date, there were 92,556,379 shares of our common stock outstanding and entitled to be voted at the Annual Meeting.

Q: What proposals will be voted on at the Annual Meeting?

A: There are three proposals to be considered and voted on at the Annual Meeting:

1.To elect the Class III director nominees identified in this Proxy Statement to the Board, each to serve until the 2029 annual meeting of stockholders and until his successor is elected and qualified (the “Director Election Proposal”).

2.To conduct an advisory vote to approve the Company’s executive compensation (the “Say on Pay Proposal”).

3.To ratify the appointment of KPMG LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026 (the “Auditor Ratification Proposal”).

The Company will also transact such other business as may properly come before the Annual Meeting or any adjournments or postponements thereof.

Q: How many shares must be represented to have a quorum and hold the Annual Meeting?

A: The presence by virtual attendance or by proxy of holders of outstanding shares of common stock representing a majority of the voting power as of the Record Date is needed for a quorum at the Annual Meeting. Abstentions and broker non-votes will be counted towards the quorum requirement.

Q: How can I attend and vote at the Annual Meeting?

A: There will be no in-person component to the Annual Meeting, which will be held by means of a live, virtual-only online audio webcast on Wednesday, June 3, 2026, at Noon, Pacific Time, unless postponed or adjourned to a later date. Only stockholders of record as of the Record Date and qualifying beneficial owners as of the Record Date, as described above under the heading “Access to the 2026 Virtual-Only Annual Meeting,” will be entitled to attend the virtual-only Annual Meeting. To attend and vote at the virtual-only Annual Meeting, please follow the instructions as applicable to the nature of your ownership of our common stock contained earlier in this Proxy Statement in the section titled “Access to the 2026 Virtual-Only Annual Meeting.”

Rimini Street, Inc. | 4

Q: What if during the check-in time or during the virtual-only Annual Meeting I have technical difficulties or trouble accessing the Annual Meeting website?

A: The host of our virtual-only Annual Meeting platform, Continental Stock Transfer, will have technicians ready to assist you with any technical difficulties you may have accessing the Annual Meeting website. If you encounter any difficulties accessing the Annual Meeting website during the check-in or meeting time, please call Continental Stock Transfer technical support at (917) 262-2373.

Q: How do I cast my vote?

A: If you are a stockholder of record on the Record Date, you may vote online during the virtual-only Annual Meeting. You may also vote in advance of the Annual Meeting by completing, signing, dating and returning the enclosed proxy card in the accompanying pre-addressed, postage-paid envelope, or, if you prefer, by following the instructions on your proxy card for internet voting. Please have your proxy card with you if you are going to vote through the internet in advance of the Annual Meeting. During the virtual-only Annual Meeting, you may vote using the Annual Meeting website, as described above in the section titled “Access to the 2026 Virtual-Only Annual Meeting.”

If you hold your shares in street name through a broker, bank or other nominee rather than directly in your own name, you are considered the beneficial owner of those shares, and this Proxy Statement is being forwarded to you by your broker, bank or other nominee, together with a voting instruction card. To vote during the virtual-only Annual Meeting, please follow the instructions applicable to the nature of your ownership of our common stock, as described above in the section titled “Access to the 2026 Virtual-Only Annual Meeting.”

If you hold shares in the name of a broker, bank or other nominee you may be able to vote those shares by internet or telephone depending on the voting procedures used by your broker, bank or other nominee, as explained below under the question “How do I vote if my shares are held in “street name” by a broker, bank or other nominee?”

Q: How do I vote if my shares are held in “street name” by a broker, bank or other nominee?

A: If your shares are held by a broker, bank or other nominee, your broker, bank or other nominee (your “Financial Institution”) will send you instructions for voting those shares. Many (but not all) Financial Institutions participate in a program provided through Broadridge Investor Communication Solutions (www.proxyvote.com) that offers internet and telephone voting options. For more information on whether you as a holder in “street name” can vote your shares through Broadridge Investor Communications Solutions, please contact the Financial Institution that holds your shares (or refer to the information on your voting instruction card).

Q: How do I change my vote?

A: You may revoke your proxy and change your vote at any time before it is exercised at the Annual Meeting. You can revoke a proxy by (i) giving written notice to the Company’s secretary at the address listed on the first page of this Proxy Statement, (ii) delivering an executed, later-dated proxy, or (iii) if you are eligible to do so, voting during the virtual-only Annual Meeting through our Annual Meeting website. However, attending the virtual-only Annual Meeting via the Annual Meeting website will not automatically revoke your proxy unless you also vote during the meeting using the Annual Meeting website or specifically request in writing that your proxy be revoked. If your shares of common stock are held in street name and you wish to change or revoke your voting instructions, you should contact your Financial Institution for information on how to do so.

Q: What are “broker votes” and “broker non-votes?”

A: On certain “routine” matters, Financial Institutions have discretionary authority under applicable rules of the Nasdaq Stock Market LLC (the “Nasdaq Rules”) to vote their customers’ shares if their customers do not provide voting instructions. When a Financial Institution votes its customers’ shares on a routine matter without receiving voting instructions (referred to as “broker discretionary voting”), these shares are counted both for establishing a quorum to conduct business at the Annual Meeting and in determining the number of shares voted “FOR” or “AGAINST” the routine matter. For purposes of the Annual Meeting, the Auditor Ratification Proposal is considered a “routine” matter.

Under New York Stock Exchange (“NYSE”) requirements generally applicable to member Financial Institutions, each of the Director Election Proposal and the Say on Pay Proposal is considered a “non-routine” matter for which Financial Institutions do not have discretionary authority to vote their customers’ shares if their customers did not provide voting instructions. Therefore, for purposes of the Annual Meeting, if you hold your stock through an account at a Financial Institution, your Financial Institution may not vote your shares on your behalf on these proposals without receiving

Rimini Street, Inc. | 5

instructions from you. When a Financial Institution does not have the authority to vote its customers’ shares or does not exercise its authority, these situations are referred to as “broker non-votes.” Broker non-votes are counted for establishing a quorum to conduct business at the Annual Meeting.

We encourage you to provide voting instructions to your Financial Institution so that your shares will be voted at the Annual Meeting on all matters up for consideration.

Q: What is the voting standard for the Director Election Proposal?

A: In regard to the Director Election Proposal, you may vote “FOR” all or some of the listed nominees or you may “WITHHOLD” your vote for any nominee you specify.

Directors are elected by plurality vote. This means that the three director nominees receiving the highest number of affirmative votes will be elected as directors. You may vote “FOR” all of the director nominees, “WITHHOLD” authority to vote your shares for all the director nominees or “WITHHOLD” authority to vote your shares with respect to any one or more of the director nominees. Withholding authority to vote your shares with respect to one or more director nominees will have no effect on the election of those nominees. Broker non-votes will have no impact on the vote.

Q: What is the voting standard for the Say on Pay Proposal?

A: You may vote “FOR,” “AGAINST” or “ABSTAIN” on the Say on Pay Proposal.

The approval of the Say on Pay Proposal requires the affirmative vote of a majority of the voting power of the shares present (by virtual attendance) or represented by proxy at the Annual Meeting and entitled to vote.

This vote is advisory only, which means that the vote on executive compensation is not binding on the Company, the Board, or the Compensation Committee of the Board (the “Compensation Committee”). However, our Board values our stockholders’ opinions, and our Board and the Compensation Committee will consider and evaluate the results of the vote, together with feedback from stockholders. To the extent there is a significant vote against the Say on Pay Proposal, the Board and the Compensation Committee will evaluate whether any actions are necessary to address the concerns of stockholders.

Abstentions will have the same effect as a vote cast “AGAINST” the Say on Pay Proposal. Broker non-votes will have no impact on the vote as they are not entitled to vote on this proposal.

Q: What is the voting standard for the Auditor Ratification Proposal?

A: You may vote “FOR,” “AGAINST” or “ABSTAIN” on the Auditor Ratification Proposal.

The approval of the Auditor Ratification Proposal requires the affirmative vote of a majority of the voting power of the shares present (by virtual attendance) or represented by proxy at the Annual Meeting and entitled to vote.

Abstentions will have the same effect as a vote cast “AGAINST” the Auditor Ratification Proposal. Broker non-votes are not expected on the Auditor Ratification Proposal as it is considered a routine matter.

Q: How does the Company’s Board of Directors recommend that I vote?

A: The Board unanimously recommends that you vote:

•“FOR” the election of the each of the Class III director nominees to the Board identified in this Proxy Statement;

•“FOR” the Say on Pay Proposal; and

•“FOR” the Auditor Ratification Proposal.

Q: What information is available on the internet?

A: A copy of this Proxy Statement and our 2025 Annual Report to Stockholders is available for download free of charge at https://www.cstproxy.com/riministreet/2026.

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Our website address is www.riministreet.com. We use our website as a channel of distribution for important information about us. Important information, including press releases, investor presentations and financial information regarding Rimini Street, is routinely posted on and accessible on the “Investor Relations” subpage of our website.

In addition, we make available on the “Investor Relations” subpage of our website free of charge the reports we file with the U.S. Securities and Exchange Commission (“SEC”) (e.g., our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, proxy statements on Schedule 14A, and beneficial ownership reports on Forms 3, 4 and 5). Further, copies of our Certificate of Incorporation, our Amended and Restated Bylaws (the “Bylaws”), our Code of Business Conduct and Ethics, our Amended and Restated Corporate Governance Guidelines (the “Corporate Governance Guidelines”) and the charters for the Audit, Compensation and Nominating & Corporate Governance Committees of the Board are also available on the “Investor Relations” subpage of our website.

Information from our website is not incorporated by reference into, or considered a part of, this Proxy Statement.

Q: What if I return my proxy card (or complete the internet voting procedures) but do not provide voting instructions?

A: The Board has named Seth A. Ravin, our President, Chief Executive Officer and Chairman of the Board, and Celeste Rasmussen Peiffer, Vice President, Managing Counsel, Corporate & Corporate Secretary, as official proxy holders. They will vote all proxies, or record an abstention or withholding as applicable, in accordance with the instructions you provide.

IF YOU ARE A REGISTERED HOLDER AND SIGN AND RETURN YOUR PROXY CARD BUT GIVE NO DIRECTION OR COMPLETE THE INTERNET VOTING PROCEDURES BUT DO NOT SPECIFY HOW YOU WANT TO VOTE YOUR SHARES, YOUR SHARES WILL BE VOTED IN ACCORDANCE WITH THE BOARD’S RECOMMENDATIONS ON EACH PROPOSAL.

Q: Who is soliciting my vote?

A: Our Board is soliciting your vote for matters being submitted for stockholder approval at the Annual Meeting.

Q: Who will bear the cost for soliciting votes for the Annual Meeting?

A: We will bear the cost of soliciting proxies. Morrow Sodali LLC (Sodali & Co.) has been retained by the Company to provide the broker search, proxy solicitation services and materials distribution services, as well as serve as the Company’s Administration Agent for the Annual Meeting, for a fee of $10,000 plus a minimum of $2,500 in distribution costs and other expenses. In addition to these written proxy materials, our proxy solicitor, directors, officers and non-officer employees may also solicit proxies in person, by telephone or by other means of communication. Our directors, officers and non-officer employees will not be compensated for the solicitation but may be reimbursed for out-of-pocket expenses. We have also made arrangements with certain Financial Institutions and other custodians to forward these materials to the beneficial owners of our common stock, and we will reimburse them for their reasonable out-of-pocket expenses.

Q: Who will count the votes?

A: We have hired our Transfer Agent, Continental Stock Transfer, to tabulate the votes for each proposal at the Annual Meeting and to be responsible for determining whether or not a quorum is present.

Q: Where can I find the voting results of the Annual Meeting?

A: We will announce preliminary voting results at the Annual Meeting and publish final results on a Current Report on Form 8-K that we expect to file with the SEC within four business days after the Annual Meeting (a copy of which will be available on the “Investors Relations” subpage of our website).

Q: May I propose actions for consideration at the next Annual Meeting of Stockholders or nominate individuals to serve as directors?

A: You may submit proposals for consideration at future stockholder meetings, including director nominations, if you satisfy the applicable requirements. Please see “Other Matters and Additional Information” for more details.

Q: Whom should I contact with questions about the Annual Meeting?

A: If you have any questions about this Proxy Statement or the Annual Meeting, please contact the Rimini Street Investor Relations Department by email at IR@riministreet.com or by calling (925) 523-7636.

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Q: What if I have more than one account?

A: Please vote proxies for all accounts so that all your shares are voted. You may be able to consolidate multiple accounts through our Transfer Agent, Continental Stock Transfer, online at www.continentalstock.com or by calling 1-800-509-5586 (United States) or +1 (212) 509-5586 (international).

Q: Will a list of stockholders entitled to vote at the Annual Meeting be available?

A: In accordance with Delaware law and our Bylaws, a list of stockholders entitled to vote at the Annual Meeting will be available for inspection by any stockholder for any purpose germane to the Annual Meeting for a period of 10 days prior to the Annual Meeting. If you want to inspect the stockholder list, call our Investor Relations Department at (925) 523-7636. Additionally, such list will also be open to the examination of any stockholder during the time the Annual Meeting is being held at https://www.cstproxy.com/riministreet/2026.

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PROPOSAL NO. 1 — ELECTION OF CLASS III DIRECTOR NOMINEES

Nominees

The Board has nominated the Class III directors named below for election at the Annual Meeting. Each of the nominees currently serves as a director and has consented to be named in this Proxy Statement and to serve on the Board if reelected. If reelected, each of the nominees will serve until the 2029 annual meeting of stockholders and until his successor has been elected and qualified. Although the Board does not contemplate that any of the nominees will be unable to serve, if such a situation arises, the Board may designate a substitute nominee or reduce the size of the Board. If the Board designates a substitute nominee, proxies will be voted for such substitute nominee.

The Nominating & Corporate Governance Committee of the Board (the “Nominating Committee”) is responsible for director recruitment and recommending to the Board all director nominees. Stockholders who wish to recommend a person for consideration as a director nominee should follow the procedures described below under the heading “Deadlines for Stockholder Proposals and Director Nominations to be Presented at the Next Annual Meeting.” The Board selected the nominees for election at the Annual Meeting upon the recommendation of the members of the Nominating Committee.

Board Composition

The following table sets forth the names, ages and positions of the members of the Board as of April 30, 2026:

Name

Age

Position(s) with the Company

Class I Director (term continues through 2027)

Jack L. Acosta(1)

Lead Independent Director; Chair of the Audit Committee

Class II Director (term continues through 2028)

Robin Murray(3)

Director

Class III Directors (for term through 2029)

Seth A. Ravin

President, Chief Executive Officer and Chairman of the Board

Steven Capelli(1)(2)(3)

Director; Chair of the Nominating Committee; Chair of the Compensation Committee

Jay Snyder(1)(2)(3)

Director

_____________________________

(1) Member of the Audit Committee

(2) Member of the Compensation Committee

(3) Member of the Nominating Committee

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Class III Director Nominees — Biographical Information


						Mr. Ravin, a 30-year enterprise software veteran who pioneered the independent enterprise software industry, founded Rimini Street and has served as our Chief Executive Officer and Chairman of the Board since September 2005 (including service to Rimini Street, Inc., a Nevada corporation, the predecessor entity to the Company (“RSI”)) and as our President since March 2023. He also served as President of RSI from September 2005 to January 2011. Prior to founding Rimini Street, Mr. Ravin served in various executive roles at TomorrowNow, Inc. from May 2002 to April 2005, most recently as President and a board director. TomorrowNow, Inc. was a supplier of software maintenance and support services for Oracle’s PeopleSoft and J.D. Edwards applications acquired in January 2005 by SAP America, Inc. From April 2000 to March 2001, Mr. Ravin served as Vice President of Inside Sales for Saba Software, Inc., a provider of e-Learning and human resource management software. From April 1996 to April 2000, Mr. Ravin served in various management roles at PeopleSoft, Inc., an enterprise software company later acquired by Oracle, ultimately serving as a Vice President of the Customer Sales Division. Mr. Ravin holds a Bachelor of Science degree in Business Administration from the University of Southern California. DIRECTOR QUALIFICATIONS: We believe Mr. Ravin is qualified to serve as a member of our Board because of the perspective and experience he brings as Rimini Street’s founder, President and Chief Executive Officer. We also value his deep understanding of Rimini Street’s business as it has evolved over time and his extensive senior management expertise in the software maintenance and support services industry.
SETH RAVIN
Age: 59 Director Since: 2005 Chairman of the Board


						Mr. Capelli has served as a member of the Board since October 2017, and previously served on the board of directors of RSI from January 2014 until October 2017. Since October 2020, he has been a private investor/advisor. Prior to his retirement in October 2020, Mr. Capelli was the Chief Revenue Officer of Blackberry Limited, an enterprise software and services company, a position he held from October 2019. From October 2016 until October 2019, Mr. Capelli served as Blackberry Limited’s Chief Financial Officer. He also served as its Chief Operating Officer from March 2018 until February 2019. Previously, Mr. Capelli served in various management positions at Sybase, Inc., an enterprise software and services company acquired by SAP, from December 1997 to April 2012, most recently as President, Worldwide Field Operations. From August 1992 to December 1997, Mr. Capelli served in various management positions at Siemens-Pyramid, a subsidiary of Siemens Nixdorf, a computer and electronics company, including as Chief Financial Officer, Vice President of InterContinental Sales, and Director of Field Operations. From January 2005 to November 2005, Mr. Capelli served on the Board of Directors of Apropos Technology, Inc., a publicly traded business communication software firm. In addition, Mr. Capelli has served and continues to serve as a member of the Board of Directors of various private companies and in October 2020 was appointed the Chairman of the Board of Directors of MLOGICA, LLC, a technology and product consulting company. Mr. Capelli holds a Bachelor of Science degree in Accounting from The College of New Jersey and a Master’s Degree in Business Administration from Rutgers University. DIRECTOR QUALIFICATIONS: We believe Mr. Capelli is qualified to serve as a member of our Board because of his extensive experience in the enterprise software industry, his finance expertise and experience serving on boards of directors of various technology companies.
STEVEN CAPELLI
Age: 68 Director Since: 2014 Committees: Nominating (Chair); Compensation (Chair); Audit Class and Term: Class III (through 2026)

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Class III Director Nominees — Biographical Information (Continued)


						Mr. Snyder has served as a member of the Board since June 2020. He is the SVP of Partners and Alliances for Dynatrace, Inc., a provider of unified observability and security solutions for dynamic, hybrid, multi-cloud environments. Prior to joining Dynatrace in November 2023, he was the Chief Customer Officer for BetterUp, a provider of virtual coaching and mental wellness services, commencing in January 2023. Prior to joining BetterUp, he was Senior Vice President, Customer Strategy and Solutions at UiPath, an enterprise automation software company, where he led the Industries, Value Engineering, Services and Customer Success organization. He joined UiPath in January 2021 after serving as Executive Vice President and Chief Customer Officer of New Relic, Inc., a software analysis platform provider. Prior to joining New Relic, Inc. in May 2020, he was Senior Vice President, Global Alliances, Service Providers and Industries of Dell Technologies, a digital technology solutions, products and services company, a position he held from May 2015. Previously, he served in various management positions at Dell Technologies, including Senior Vice President, Americas Global Services (January 2014 to June 2015), Chief Operating Officer, Americas Sales and Customer Operations (January 2013 to December 2014) and Area Vice President Sales, Northern California (February 2008 to December 2012). He also served in various management positions at Dell Technologies’ predecessor entity, Dell EMC, including GM/Americas Sales Lead, EMC Consulting (2002-2008) and Director West Division; Channels, Alliances and Business Development (1999-2002), as well as at PeopleSoft, Inc., an enterprise software company acquired by Oracle Corporation, including Director, Technology Alliances and Business Development (January 1999 to December 1999) and Manager, Strategic Services (February 1998 to December 1998). Mr. Snyder holds a Bachelor of Science, Economics and Finance from Bentley University. DIRECTOR QUALIFICATIONS: We believe Mr. Snyder is qualified to serve as a member of our Board because of his extensive software operational and sales experience, as well as industry experience in customer service-oriented technology companies.
JAY SNYDER
Age: 55 Director Since: 2020 Committees: Nominating; Compensation; Audit Class and Term: Class III (through 2026)

Continuing Directors — Biographical Information


						Mr. Acosta has served as a member of the Board since October 2017 and previously served on the board of directors of RSI from October 2013 until October 2017. Mr. Acosta served as Chief Financial Officer and Vice President, Finance of Portal Software, a software company acquired by Oracle Corporation, from February 1999 until September 2001. Since September 2001, he has been a private investor/advisor. From July 1996 to January 1999, Mr. Acosta served as Executive Vice President and Chief Financial Officer of Sybase, Inc., a database company acquired by SAP AG. From April 2011 to May 2025, Mr. Acosta served on the Board of Directors of Five9, Inc. (Nasdaq: FIVN), a provider of cloud software for contact centers. From March 2004 to July 2009, Mr. Acosta served on the Board of Directors of SumTotal Systems, Inc., a provider of learning, performance and compensation management software and services. Mr. Acosta has served and continues to serve as a member of various private company boards of directors. Mr. Acosta holds a Bachelor of Science degree in Industrial Relations from California State University, East Bay, a Master’s of Science degree in Management Sciences from California State University, East Bay and an Honorary Doctor of Humane Letters degree from California State University, East Bay. DIRECTOR QUALIFICATIONS: We believe Mr. Acosta is qualified to serve as a member of our Board because of his extensive experience in the enterprise software industry, his expertise in finance matters and his service on the boards of directors of publicly-traded and private technology companies.
JACK ACOSTA
Age: 78 Director Since: 2013 Lead Independent Director (August 2022) Committee: Audit (Chair) Class and Term: Class I (through 2027)

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Continuing Directors — Biographical Information (Continued)


						Mr. Murray has served as a member of the Board since October 2017, and previously served on the board of directors of RSI from June 2009 until October 2017. Mr. Murray is a partner at Adams Street Partners, LLC (“ASP”), a private market investments firm, which he joined in 2008. From 2001 to 2008, Mr. Murray served as a partner at 3i Ventures Corporation, a private equity and venture capital firm, where he led the Menlo Park, California office. From 1997 to 2001, Mr. Murray served as Chief Financial Officer of both iPIN Corporation, an electronic payment technology company ultimately acquired by Intel Corporation, and Ubicoms Ltd, a company acquired by The Hackett Group. From 1988 to 1995, Mr. Murray served in various roles in the London offices of J Sainsbury plc and Ernst & Young. Mr. Murray qualified as a Chartered Accountant with the Institute of Chartered Accountants of England & Wales. He holds a Bachelor of Science degree in Chemistry from Bristol University, England and a Masters of Business Administration from Stanford University Graduate School of Business. Mr. Murray has served and continues to serve as a member of the Board of Directors of various private companies. DIRECTOR QUALIFICATIONS: We believe Mr. Murray is qualified to serve as a member of our Board because of his substantial corporate finance, business strategy and corporate development expertise gained from his significant experience in the private equity industry analyzing, investing in and serving on the boards of directors of various technology companies. Mr. Murray also has experience investing in businesses focused on artificial intelligence, which provides the Board with additional insights on emerging technologies and related market developments. We also value his perspective as a partner at our largest stockholder.
ROBIN MURRAY
Age: 60 Director Since: 2009 Committee: Nominating Class and Term: Class II (through 2028)

Director Nomination Process

Criteria and Qualifications

Per our Corporate Governance Guidelines and the Charter for the Nominating Committee, the Nominating Committee determines, as appropriate, the desired qualifications, qualities, skills and other expertise required to be a director and recommends to the full Board criteria to be considered in selecting director nominees, including, but not limited to, attributes of character, judgment, age, expertise, corporate and technology experience, length of service and other time commitments.

The Nominating Committee reviews the composition of the Board on an annual basis, in the context of recommending a slate of directors for the class up for re-election by stockholders. In determining whether to recommend a director for re-election, the Nominating Committee considers the director’s character and integrity, past attendance at meetings, participation in and contributions to the activities of the Board and the Company, and ability to contribute to the diversity of experience and perspectives on the Board. The Nominating Committee assesses its effectiveness in this regard as part of its annual review of Board composition.

Stockholder Recommendations of Nominees

Per our Corporate Governance Guidelines, it is the policy of the Board that the Nominating Committee consider recommendations for candidates to the Board from stockholders. Stockholders may recommend director nominees for consideration by the Nominating Committee by meeting the requirements set forth in our Bylaws. Following verification of the stockholder status of the person submitting the recommendation, all properly submitted recommendations will be promptly brought to the attention of the Nominating Committee. The Nominating Committee does not formally distinguish between candidates recommended by stockholders and candidates recommended by other directors, management and others (including third-party search firms, which the Nominating Committee may retain from time to time). Stockholders who desire to nominate persons directly for election to the Board at the Company’s annual meeting of stockholders must meet the deadlines and other requirements set forth in our Bylaws. See “Deadlines for Stockholder Proposals and Director Nominations to be Presented at the Next Annual Meeting” in this Proxy Statement.

Board of Directors Recommendation

THE BOARD UNANIMOUSLY RECOMMENDS THAT YOU VOTE “FOR” THE ELECTION OF THE CLASS III DIRECTOR NOMINEES IDENTIFIED ABOVE.

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Vote Required

Directors are elected by a plurality of the votes present (by virtual attendance) or represented by proxy at the Annual Meeting and entitled to vote.

CORPORATE GOVERNANCE MATTERS

Best Practices

Director Independence: All directors are independent other than our President, Chief Executive Officer and Chairman of the Board, who is the only member of management serving on the Board

Annual Evaluations: Annual Board and Board committee evaluations promote Board and Board Committee effectiveness

Lead Independent Director: Our Corporate Governance Guidelines provide that at any time when the Chairman of the Board is not an independent director, the Board shall elect a “Lead Independent Director” in order to facilitate communications between Company management and non-employee directors

Comprehensive Board Oversight: The Board and/or Board committees receive regular reports and updates on key areas of strategy and risk for the Company, including cybersecurity, data privacy, artificial intelligence (“AI”), sales enablement and talent and human capital management.

Independent Director Executive Sessions: Our independent directors meet regularly in executive sessions without the presence of our corporate officers or our President, Chief Executive Officer and Chairman of the Board

Board Oversight of Succession Planning: The Compensation Committee oversees the development and implementation of succession plans for senior management positions

Outside Board Policy: We limit the number of other public company boards our directors may join to ensure a director is not “overboarded” and is able to devote the appropriate amount of time and attention to their oversight responsibilities

Board Access to Independent Advisors: The Board and its committees may hire independent advisors, such as auditors, compensation consultants, legal counsel and other advisors as it determines appropriate, to assist in the performance of their functions

Stockholder Engagement: Members of our management regularly engage with stockholders to solicit feedback, address concerns and provide perspective on our business strategy

Hedging and Pledging Prohibited: Under the terms of our Insider Trading Policy, all directors and executive officers are prohibited from hedging and pledging Company securities

Board Oversight of Strategic Plan: Generally, a separate annual Board meeting is devoted to the long-term strategy of the Company, in addition to regular discussions about Company strategy at meetings throughout the year

Single Class Voting Structure: We have redeemed all of our formerly outstanding 13.00% Series A Redeemable Convertible Preferred Stock and have a single common stock class voting structure (one share, one vote)

Annual Review of Key Governance Documents: No less than annually, our internal and external legal advisors review the terms of our key governance documents, such as our Corporate Governance Guidelines and Board committee charters

Board Committee Independence: All Board committees are comprised exclusively of independent directors

Board Structure

Our business affairs are managed under the direction of the Board. Our Board consists of five members, four of whom qualify as independent within the meaning of the independent director guidelines of the Nasdaq Global Market (the “Nasdaq Global Market” or “Nasdaq”). Mr. Ravin is not. For additional information, please see the disclosure under the heading “Board Determination of Independence,” below.

Per our Certificate of Incorporation, the Board is divided into three classes of directors. At each annual meeting of stockholders, a class of directors will be elected for a three-year term to succeed the same class whose term is then expiring, as follows:

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•Jack L. Acosta is the sole Class I director. His term will expire at the 2027 annual meeting of stockholders.

•Robin Murray is the sole Class II director. His term will expire at the 2028 annual meeting of stockholders.

•The Class III directors are Seth A. Ravin, Steven Capelli and Jay Snyder, and their terms will expire at the Annual Meeting, subject to their respective re-election at the Annual Meeting for a new term.

Our Certificate of Incorporation and Bylaws provide that the number of directors, which is fixed at five members as of the date of this Proxy Statement, may be increased or decreased from time to time by a resolution of the Board, provided that each sitting director’s term continues until the election and qualification of his successor, or his earlier death, resignation, or removal. Any increase in the number of directors generally will be distributed among the three classes so that, as nearly as practicable, each class will consist of approximately one-third of the total number of directors. This classification of the Board may have the effect of delaying or preventing changes in control of the Company.

There are no family relationships among any of our directors, including the Class II director nominee, or executive officers.

Classified Board Structure

Our Board of Directors believes that there is no “one size fits all” governance approach that suits all companies. The appropriate standard by which to judge our classified board structure is whether it protects the interests of our stockholders. According to recent proxy statements and publicly available documents, a majority of our 2026 executive compensation peer group companies that, as of the Record Date, are publicly traded companies also have classified or staggered board structures. We believe that our classified board structure is consistent with our peer group and protects our interests and our stockholders for the following reasons:

The Classified Board Structure Aligns our Board of Directors with our Long-term Interests.

We believe that our classified board encourages our directors to look to the long-term best interests of the Company and its stockholders and allows for stable and informed oversight, providing institutional perspective both to management and other directors. Our classified board structure is designed to ensure that, at any given time, there are directors serving on our Board of Directors who have substantial knowledge of our Company, business and strategic goals. Our classified board structure enables our directors to build on their own past experience and the experience of other continuing directors, including accumulated knowledge, for more effective long-term strategic planning.

In addition, electing directors to three-year terms, rather than one-year terms, enhances the strategic effectiveness of our non-management directors by helping ensure that directors do not make short-term decisions that may be detrimental to our long-term interests given their lengthier tenure between elections.

The Classified Board Structure Helps Attract Director Candidates Who Want to Make Long-Term Service Commitments to the Company.

We believe that our classified board structure benefits our Company and stockholders because the longer terms of office help us attract qualified director candidates who are willing to make long-term commitments of their time and expertise to the Company.

The Classified Board Structure Reduces our Vulnerability to Coercive Takeovers.

Our classified board structure reduces our vulnerability to coercive takeover tactics and inadequate takeover bids by encouraging persons seeking control of our Company to negotiate with our Board of Directors and thereby better positions our Board of Directors to negotiate effectively on behalf of all our stockholders. The classified board structure is designed to safeguard against an insurgent stockholder replacing a majority of our directors with its own nominees at a single annual meeting, thereby gaining control of our company and assets without paying fair value to our stockholders.

Our classified board structure does not preclude a takeover, but rather provides our Board of Directors the time and flexibility necessary to be in the best position to evaluate the adequacy and fairness of proposed offers, consider alternative methods of maximizing stockholder value, protect all stockholders against abusive tactics during a takeover process and, as appropriate, negotiate the best possible return for all stockholders, without the threat of imminent removal of a majority of the members of our Board of Directors. We believe this is particularly important in the current environment of stock market volatility in our common stock, in which persons seeking to gain control of the Company may pursue coercive takeover tactics

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during a period of depressed stock prices, even when the decline in the Company’s stock price is due to factors outside of its control.

Corporate Governance Guidelines

Our Board has adopted Corporate Governance Guidelines outlining the corporate governance policies pursuant to which the Board oversees the business and strategy of the Company, addressing items such as the qualifications and responsibilities of our directors and director candidates and the specific oversight responsibilities of the Board. As part of our annual review of the Company’s corporate governance policies, in January 2023, the Board, upon the recommendation of the Nominating Committee, amended the Corporate Governance Guidelines to provide that stockholders who intend to solicit proxies in support of director nominees other than the Company’s nominees must also comply with Exchange Act requirements. You can find a copy of our Corporate Governance Guidelines on the “Investor Relations” subpage of our website.

Code of Business Conduct and Ethics

Our Board has adopted a Code of Business Conduct and Ethics that applies to all of our employees, officers and directors, including our Chief Executive Officer, Chief Financial Officer and other executive and senior financial officers. The purpose of the Code of Business Conduct and Ethics is to promote ethical conduct and deter wrongdoing. The policies outlined in the Code of Business Conduct and Ethics are designed to ensure that our employees, including our executive officers and members of the Board, act in accordance with not only the letter but also the spirit of the laws and regulations that apply to our business. In accordance with our Corporate Governance Guidelines, on no less than an annual basis, the Audit Committee reviews the Code of Business Conduct and Ethics and approves any changes deemed necessary or appropriate upon the recommendation of Company executive management in consultation with the Company’s in-house and external legal advisors.

Primary responsibility for promoting, monitoring and enforcing the Code of Business Conduct and Ethics under the oversight of the Board and Chair of the Audit Committee resides with management-level employees comprising the Company’s Ethics and Compliance function under the leadership of the Company’s Vice President, Global Risk Management & Internal Audit, who reports directly to both the Chief Executive Officer and the Audit Committee. In addition, the Company’s Ethics and Compliance function is also responsible for promoting, monitoring, enforcing and conducting training regarding a broad set of ethical business conduct policies maintained by the Company, including the Company’s Policy Regarding Reporting of Accounting, Auditing and Other Matters (pertaining to its Whistleblower Hotlines) and policies addressing matters relating to antitrust compliance, trade compliance, and global anti-corruption, business courtesies and anti-money laundering laws.

The Ethics and Compliance function is also responsible for Company contract compliance and internal investigations and works in parallel with the Company’s Legal Department practice groups on matters relating to corporate governance, regulatory compliance and data privacy. The Audit Committee receives updates regarding the Company’s Ethics and Compliance function, including but not limited to internal investigations, on a quarterly basis.

Please visit the following website for additional information about the Company’s Ethics and Compliance function: https://www.riministreet.com/company/ethics-and-compliance. You can find a copy of our Code of Business Conduct and Ethics, as well as other Company corporate governance and compliance policies, on the “Investor Relations” subpage of our website.

Board Leadership Structure

Our Corporate Governance Guidelines provide that at any time when the Chairman of the Board is not an independent director, the Board shall elect a “Lead Independent Director” in order to facilitate communications between Company management and non-employee directors. Because the Chairman of the Board, Mr. Ravin, also serves as our President and Chief Executive Officer, the Board has appointed Mr. Acosta to serve as its Lead Independent Director. As Lead Independent Director, Mr. Acosta communicates with our President, Chief Executive Officer and Chairman of the Board regarding feedback from executive sessions of the non-employee and/or independent directors, for which he is responsible for scheduling, preparing the agendas and chairing. He also serves as a liaison between members of our executive management and our non-employee directors, disseminating information to the rest of the Board in a timely manner and raising issues with management on behalf of the non-employee and/or independent directors when appropriate.

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As Chairman of the Board, Mr. Ravin is directly responsible for Board management, in particular by chairing Board meetings, providing input on the agendas for Board and Board committee meetings, evaluating the membership and chairs for Board committees and the effectiveness of the committees, and encouraging the Company’s non-employee and/or independent directors to meet regularly without management present.

The Board believes that this structure is currently appropriate for the Company as it permits our President and Chief Executive Officer to speak for and lead the Company and Board while also providing for effective oversight and independent leadership by an independent director.

Board Determination of Independence

Our Nominating Committee and full Board have reviewed and analyzed the independence of each director, including the Class III director nominees. The purpose of the review was to consider whether any particular relationships or transactions involving directors or their affiliates or immediate family members (i) were inconsistent with a determination that a particular director is independent for purposes of serving on the Board and its committees, or (ii) could compromise his ability to exercise independent judgment in carrying out responsibilities. During this review, the Board examined whether there were any transactions and/or relationships between directors or their affiliates or immediate family members and the Company and the substance of any such transactions or relationships. They also specifically considered each of the transactions identified under the heading “Related Person Transactions” below.

The Company’s common stock is listed on the Nasdaq Global Market. Under Nasdaq listing standards, independent directors must comprise a majority of a listed company’s board of directors. In addition, the Nasdaq Rules require that, subject to specified exceptions, each member of a listed company’s audit, compensation and nominating committees be independent. Under the Nasdaq Rules, a director will only qualify as an “independent director” if that person has no disqualifying relationships or arrangements specifically enumerated by the Nasdaq Rules and, in the opinion of the Board, does not have a relationship that would interfere with the exercise of independent judgment in carrying out the responsibilities of a director. Audit committee members must also satisfy the independence criteria set forth in Rule 10A-3 under the Exchange Act. Compensation committee members must also satisfy the independence criteria set forth in Rule 10C-1 under the Exchange Act.

In order to be considered independent for purposes of Rule 10A-3 and Rule 10C-1, a member of an audit committee or a compensation committee of a listed company generally may not, other than in his or her capacity as a member of the committee, the Board, or any other Board committee: (1) accept, directly or indirectly, any consulting, advisory, or other compensatory fee from the listed company or any of its subsidiaries; or (2) be an affiliated person of the listed company or any of its subsidiaries.

Following its most recent independence review, which was conducted with the assistance of the Nominating Committee and in connection with the preparation of this Proxy Statement, the Board determined that Messrs. Acosta, Capelli, Murray and Snyder, representing four of the Company’s current five directors and all of the members of the Audit, Compensation and Nominating Committees, are “independent directors” as defined under the applicable rules and regulations of the SEC and the listing standards of the Nasdaq Global Market.

Board of Director Meetings and Attendance; Annual Meeting Attendance

The Board holds regularly scheduled board meetings quarterly, and typically each standing Board committee has regularly scheduled quarterly meetings. Such meetings are generally held in-person with the option of attending via videoconference for any meeting attendee who has health and safety concerns or who is restricted from travel or via videoconference when schedules do not permit an in-person meeting at that time. The Board holds intra-quarter meetings, which are typically via videoconference, and the Board and each standing Board committee may hold videoconference meetings or meet informally in between quarterly meetings as determined to be needed.

In 2025, the Board held 10 meetings; the Audit Committee held four meetings; the Compensation Committee held four meetings; and the Nominating Committee held four meetings. Each director attended at least 75% of the total number of Board meetings and meetings of the committees on which they served during 2025.

Our 2025 annual meeting of stockholders was held on June 4, 2025 in a virtual-only format conducted via live audio webcast. The director nominated for election at the 2025 annual meeting of stockholders and all incumbent directors with terms expiring after the date of the 2025 annual meeting of stockholders attended the 2025 annual meeting with the exception of incumbent director Mr. Snyder.

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Stockholder Communications

While the Board believes that management speaks for the Company, the Board acknowledges that individual Board members may, from time to time, communicate with various constituencies that are involved with the Company, but it is expected that Board members would do this with the knowledge of management and, in most cases, only at the request of management. The Board believes that matters pertaining to the Company’s general business operations, current and future financial results, strategic direction and similar matters are most appropriately addressed by management, with appropriate oversight and consultation provided by the Board. The Board expects that management will provide regular updates to investors regarding the Company’s business strategy and performance, and the existence and nature of such communications are reported by management and the investor relations function to the Board at regular meetings. The Board also believes that the ability of the Company’s stockholders to send communications to the Board is an important part of the Company’s corporate governance process. In cases where stockholders wish to send a communication to our non-employee directors, messages can be sent to our Vice President, Treasurer & Investor Relations at: IR@riministreet.com in accordance with the procedures outlined in our “Policies and Procedures for Stockholder Communications to Independent Directors” (our “Stockholder Communications Policy”

SEC Form DEF 14A filed by Rimini Street Inc. (DE)