John Townsend's departure as Chief Financial Officer of Ribbon Communications Inc. was reported, effective April 30, 2026; the filing names no successor. As of November 6, 2026, Ribbon Communications Inc. has reported 2 leadership change filings to the SEC under Item 5.02 of Form 8-K, from April 15, 2026 to April 28, 2026, naming 2 appointments and 1 departure (Form 8-K, April 28, 2026).
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Ribbon Communications Inc. reported changes in 2 filings among its directors and officers to the SEC on Form 8-K, Item 5.02, from 2026-04-15 to 2026-04-28. They name 2 people, with 2 appointments and 1 departure. Every row below is cited to the filing it comes from, and this page adds each new change as Ribbon Communications Inc. files it.
Also on the record for Ribbon Communications Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| August 14, 2025 | Stake report, Schedule 13G/A, by PARADIGM CAPITAL MANAGEMENT INC/NY | 5% of the class | 5%+ stakes | Source |
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Companies that share a holder
- PARADIGM CAPITAL MANAGEMENT INC/NY also filed stake reports on 6 other companies: BUILD-A-BEAR WORKSHOP INC (Aug 2026), NN INC (Feb 2026), TACTILE SYSTEMS TECHNOLOGY INC (Feb 2026)
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Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-04-28 | Out | Chief Financial Officer | 2026-04-30 | 8-K, 2026-04-28 | |
| 2026-04-15 | In | Director | 2026-04-15 | 8-K, 2026-04-15 | |
| 2026-04-15 | In | 8-K, 2026-04-15 |
Who leads Ribbon Communications 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 Financial Officer: John Townsend, departure reported, effective 2026-04-30 (filed 2026-04-28). No successor is named in these filings.
- Director: Louis Silver, appointed, effective 2026-04-15 (filed 2026-04-15).
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Departing: John Townsend, Chief Financial Officer, effective 2026-04-30
(b) Departure of Certain Officers On April 28, 2026, Ribbon Communications Inc. (the "Company") announced that John Townsend, Executive Vice President, Chief Financial Officer of the Company, has notified the Company that he is resigning effective April 30, 2026 to pursue another professional opportunity.
- Mr. Townsend's departure is not related to any disagreement with the Company relating to its operations, policies or practices.
- (c) Appointment of Certain Officers On April 28, 2026, in connection with Mr. Townsend's departure, the Company announced that it is promoting Eric "Rick" Marmurek to the position of Executive Vice President, Chief Financial Officer and Chief Accounting Officer of the Company effective May 1, 2026.
- Mr. Marmurek, CPA, age 60, has served as the Company's Senior Vice President and Chief Accounting Officer since 2018 and was promoted to Deputy Chief Financial Officer and Chief Accounting Officer in October 2024.
- Mr. Marmurek has over 35 years of financial experience.
- He has been with the Company and its predecessor companies for more than 15 years.
- Prior to joining the Company, he spent 10 years doing tax-related work for Nokia.
- He started his career in public accounting with Coopers and Lybrand.
- Mr. Marmurek earned an accounting degree from the University of Texas at Austin and a Master of Business Administration from Southern Methodist University.
- Mr. Marmurek's annual compensation consists of a base salary of $475,000, a target bonus of 75% of his base salary, and he is eligible for annual equity grants.
- Mr. Marmurek's compensatory arrangements are subject to review and adjustment in accordance with the Company's applicable practices and policies.
Appointed: Louis Silver, Director, effective 2026-04-15
Effective April 15, 2026, the Board of Directors (the " Board ") of Ribbon Communications Inc. (the " Company ") elected to increase the size of the Board to nine members and appointed Louis Silver to serve as a member of the Board until the Company's 2026 Annual Meeting of Stockholders.
Appointed: Louis Silver
It is expected that Mr. Silver will be appointed to one or more of the standing committees of the Board when the Board next meets in May 2026.
- Mr. Silver (age 72), currently serves as a corporate advisor and Managing Director for Alba Capital S.A. and Wicklow Corp., private holding and investment companies.
- From 2005 to 2015, Mr. Silver was a Principal at RP Capital UK Ltd., a multi-asset fund focused on liquid and illiquid investments in Eastern Europe, the Middle East and Africa.
- Mr. Silver has over 25 years' experience serving on boards at multiple private and public companies focused primarily on technology investment.
- He currently serves on the Board of Directors of Ceva, Inc., a Nasdaq-listed company, where he is Chairman of the Audit Committee and a member of the Compensation Committee.
- The Board believes Mr. Silver is qualified to serve on the Board based on his extensive background in strategic and investment advisory services, his legal and regulatory compliance experience, as well as his experience serving as a director of numerous private and public companies, including many in the technology space.
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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.