Ribbon Communications CFO John Townsend resigns; Rick Marmurek promoted from within

Filed April 28, 2026 · Period ending April 28, 2026 · ~1 min read

Key Changes

• high

  CFO John Townsend resigned effective April 30, 2026 to pursue another opportunity. Company states departure not related to any disagreement on operations, policies, or practices.

  Item 5.02 verify on EDGAR →
• high

  Rick Marmurek, 60, promoted to CFO effective May 1, 2026. He has served as Chief Accounting Officer since 2018 and Deputy CFO since October 2024, providing continuity.

  Item 5.02 verify on EDGAR →
• medium

  New CFO compensation set at $475,000 base salary with 75% target bonus ($356,250) plus annual equity grants, totaling approximately $831,250 in target cash compensation.

  Item 5.02 verify on EDGAR →