Bucci Sam 4
4 · Ribbon Communications Inc. · Filed Oct 17, 2025
Insider Transaction Report
Form 4
Bucci Sam
EVP & COO
Transactions
- Exercise/Conversion
Restricted Stock Units (RSUs)
2025-10-17−25,816→ 25,815 total→ Common Stock (25,816 underlying) - Exercise/Conversion
Common Stock
2025-10-17+25,816→ 462,630 total - Tax Payment
Common Stock
2025-10-17$3.81/sh−13,819$52,650→ 448,811 total
Footnotes (3)
- [F1]Eash RSU represents a contingent right to receive one share of the Registrant's common stock.
- [F2]Reflects shares of common stock withheld by the Registrant to satisfy tax withholding obligations in connection with the vesting.
- [F3]The RSUs were granted on April 17, 2023 and vested as to one-third on April 17, 2024; the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 17, 2026.