Sam Bucci

Companies

• Ribbon CommunicationsChief operating officer Jan 19, 2023 to now¹
• Ribbon CommunicationsEVP GM Packet Optical Networks Sep 16, 2020 to Sep 19, 2022²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• RCRibbon Communications RBBN599,271 shares³$851.0K at $1.42May 15, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• May 15, 2026Shares withheld for tax 44,609 shares at $2.63 of Ribbon Communications³
• May 15, 2026Exercised options 83,335 shares of Ribbon Communications³
• May 15, 2026Shares withheld for tax 28,233 shares at $2.63 of Ribbon Communications³
• May 15, 2026Exercised options 52,743 shares of Ribbon Communications³
• May 15, 2026Shares withheld for tax 20,650 shares at $2.63 of Ribbon Communications³
• May 15, 2026Exercised options 38,578 shares of Ribbon Communications³
• Apr 17, 2026Shares withheld for tax 43,116 shares at $2.71 of Ribbon Communications³
• Apr 17, 2026Exercised options 80,546 shares of Ribbon Communications³
• Apr 17, 2026Shares withheld for tax 22,884 shares at $2.71 of Ribbon Communications³
• Apr 17, 2026Exercised options 42,753 shares of Ribbon Communications³
• Apr 17, 2026Shares withheld for tax 13,818 shares at $2.71 of Ribbon Communications³
• Apr 17, 2026Exercised options 25,815 shares of Ribbon Communications³
• Oct 17, 2025Shares withheld for tax 13,819 shares at $3.81 of Ribbon Communications⁴
• Oct 17, 2025Exercised options 25,816 shares of Ribbon Communications⁴
• May 16, 2025Shares withheld for tax 28,232 shares at $3.62 of Ribbon Communications⁵
• May 16, 2025Exercised options 52,742 shares of Ribbon Communications⁵
• Apr 18, 2025Shares withheld for tax 14,297 shares at $3.58 of Ribbon Communications⁶
• Apr 18, 2025Exercised options 26,709 shares of Ribbon Communications⁶
• Apr 17, 2025Shares withheld for tax 13,818 shares at $3.53 of Ribbon Communications⁶
• Apr 17, 2025Exercised options 25,815 shares of Ribbon Communications⁶
• Mar 15, 2025Shares withheld for tax 34,424 shares at $3.95 of Ribbon Communications⁷
• Mar 15, 2025Exercised options 64,308 shares of Ribbon Communications⁷
• Mar 15, 2025Shares withheld for tax 17,557 shares at $3.95 of Ribbon Communications⁷
• Mar 15, 2025Exercised options 32,799 shares of Ribbon Communications⁷
• Oct 18, 2024Shares withheld for tax 14,297 shares at $3.56 of Ribbon Communications⁸