Ribbon Communications: CFO Eric S Marmurek exercised 75,000 shares

What happened Eric S Marmurek, chief financial officer, exercised or converted derivatives covering 75,000 shares on Oct 15, 2026. The filing shows three related transactions: two exercise/conversion entries for 37,500 shares each and a tax withholding of 14,756 shares at $1.46 per share for total proceeds of $21,544. Footnotes state the awards were restricted stock units (RSUs) issued Oct 15, 2024 that vested through Oct 15, 2026.

Key details

• Transaction date(s) and price(s): Oct 15, 2026.
  • Exercise/conversion (code M): 37,500 shares acquired, price reported as N/A.
  • Exercise/conversion (code M): 37,500 shares disposed, price reported as $0.00 (derivative).
  • Tax withholding (code F): 14,756 shares withheld at $1.46 per share for $21,544.
• Shares owned after the transaction: not reported in the filing.
• Relevant footnotes: F1 = each RSU converts to one share; F2 = shares were withheld by the registrant to satisfy tax withholding; F3 = RSUs issued Oct 15, 2024 and vesting completed through Oct 15, 2026.
• Filing date: Oct 19, 2026; the filing does not indicate it was late.

Why it may matter The filing shows conversion or exercise of derivatives and that a portion of the resulting shares were withheld to satisfy tax withholding, including 14,756 shares at $1.46 per share. The filing does not show why the insider traded or why the company acted.