Ribbon names Rick Marmurek CFO, replacing John Townsend

• Ribbon promoted Rick Marmurek to executive vice president, chief financial officer, chief accounting officer, effective May 1, 2026.
• Outgoing CFO John Townsend will leave Ribbon effective April 30, 2026 to take another professional opportunity.
• Marmurek previously served as deputy CFO, chief accounting officer since 2024.
• He has more than 15 years at Ribbon or predecessor companies, including senior vice president, chief accounting officer since 2018.
• Earlier roles included 10 years at Nokia in tax-related work, following public accounting experience at Coopers and Lybrand.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Ribbon Communications Inc. published the original content used to generate this news brief via PR Newswire (Ref. ID: NE45765) on April 28, 2026, and is solely responsible for the information contained therein.