Steven Hershkowitz's departure as Chief Revenue Officer of Rimini Street, Inc. was reported; the filing names no successor. As of November 6, 2026, Rimini Street, Inc. has reported 3 leadership change filings to the SEC under Item 5.02 of Form 8-K, from August 12, 2026 to October 2, 2026, naming 1 appointment and 1 departure (Form 8-K, September 8, 2026).
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Key facts
- · In / out: Reported · Person: not named in the filing · 8-K, 2026-10-02
- · In / out: Out · Person: Steven Hershkowitz · Role: Chief Revenue Officer · 8-K, 2026-09-08
- · In / out: In · Person: Keith C. Costello · Role: Chief Operating Officer · Effective: 2026-08-17 · 8-K, 2026-08-12
Rimini Street, Inc. reported changes in 3 filings among its directors and officers to the SEC on Form 8-K, Item 5.02, from 2026-08-12 to 2026-10-02. They name 2 people, with 1 appointment and 1 departure. Every row below is cited to the filing it comes from, and this page adds each new change as Rimini Street, Inc. files it.
Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-10-02 | Reported | not named in the filing | 8-K, 2026-10-02 | ||
| 2026-09-08 | Out | Chief Revenue Officer | 8-K, 2026-09-08 | ||
| 2026-08-12 | In | Chief Operating Officer | 2026-08-17 | 8-K, 2026-08-12 |
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Who leads Rimini Street, Inc., as last reported?
For each role that changed in the filings below, the most recent change reported. A role that did not change in these filings is not listed.
- Chief Revenue Officer: Steven Hershkowitz, departure reported (filed 2026-09-08). No successor is named in these filings.
- Chief Operating Officer: Keith C. Costello, appointed, effective 2026-08-17 (filed 2026-08-12).
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Reported
As reported in the Company's Current Report on Form 8 -K dated September 14, 2026 and effective as of the same date, Mr. Hershkowitz was reinstated as the Company's Executive Vice President and Chief Revenue Officer, resuming the same job titles, duties and responsibilities as were in effect immediately prior to his September 8, 2026 resignation.
- Effective October 1, 2026, the Compensation Committee of the Board of Directors of Rimini Street, Inc. (the "Company") approved awards of stock options ("Options"), restricted stock units ("RSUs") and performance units ("PSUs") to Mr. Steven Hershkowitz, the Company's Executive Vice President and Chief Revenue Officer, as outlined further below.
- The awards were designed to restore the number of shares of Company common stock ("Shares") underlying unvested equity incentive awards issued under the Company's 2013 Equity Incentive Plan (the "2013 Plan") that were forfeited by Mr. Hershkowitz upon his previously reported resignation from the Company on September 8, 2026, with current exercise prices and vesting terms.
- The Option awards described above are subject to the terms and conditions of the 2013 Plan and the form of stock option award agreement adopted thereunder.
- Consistent with the terms of the 2013 Plan, (i) the Options are exercisable at a per share price of $4.29, or the "Fair Market Value" (as defined in the 2013 Plan) of the Company's common stock, based upon the closing price per Share on the Date of Grant, as quoted on the Nasdaq Global Market, and (ii) each such Option shall have a term of 10 years from the Date of Grant, after which any Shares not exercised shall be returned to the 2013 Plan.
Departing: Steven Hershkowitz, Chief Revenue Officer
Mr. Steven Hershkowitz, Executive Vice President and Chief Revenue Officer of Rimini Street, Inc. (the " Company "), resigned his position effective 8 September 2026 to pursue another opportunity.
- Mr. Hershkowitz's Chief Revenue Officer responsibilities and direct reports have been transferred to Mr. Keith Costello, the Company's Executive Vice President and Chief Operating Officer.
- Mr. Costello previously led field sales functions at both DXC Technology and IBM, where he oversaw responsibility for billions of dollars of global revenue.
Appointed: Keith C. Costello, Chief Operating Officer, effective 2026-08-17
Appointment of Keith C. Costello as Executive Vice President and Chief Operating Officer On August 8, 2026, the Board of Directors (the " Board ") of Rimini Street, Inc. (the " Company ") appointed Mr. Keith C. Costello, age 60, as its Executive Vice President and Chief Operating Officer, with such appointment to be effective as of August 17, 2026.
- In this capacity, Mr. Costello will function as the Company's principal operating officer.
- Mr. Costello is a seasoned technology executive with more than 30 years of experience in building and scaling go-to-market, global services and customer success organizations.
- His expertise spans enterprise software, SaaS, product professional services and global support across B2B, B2C and AI platforms, leveraging Agentic AI to drive productivity in go-to-market pipeline and sales development.
- Before joining Rimini Street, Mr. Costello served in multiple roles at DXC Technology ("DXC"), most recently (from October 2025 until August 2026) as President, Enterprise Applications, Technology, Consulting and Engineering Services, overseeing all DXC SAP and Microsoft services worldwide.
- From December 2023 until October 2025, Mr. Costello was DXC's Global Managing Director and Senior Vice President, Applications, focusing on DXC's global SAP service line.
- Prior to joining DXC, Mr. Costello held various senior management roles at IBM from 2017 until 2023, most recently as General Manager, Global SAP Business (December 2020 until April 2023), where he led the largest practice in IBM's GBS Division (now IBM Consulting), managing a worldwide team of over 35,000 professionals and driving billions of dollars of revenue relating to IBM's developed differentiated SAP services offerings.
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Where this comes from
A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.
Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.