R. Stewart Ewing Jr.

Sits on 1 board. Last updated September 28, 2026

Time on boards

Boards served
1
Current seats
1
Board service
3 years
Director since
2023

3 years of board service in total across 1 board, counting each seat separately. Longest: Ribbon Communications Inc., 3 years.

3 years ยท Since 2023

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Date Company Transaction Shares Price Value
Jun 16, 2026 Ribbon Communications Inc. Option exercise +42,500 โ€” โ€”
Jun 17, 2025 Ribbon Communications Inc. Option exercise +48,365 โ€” โ€”
Jun 15, 2024 Ribbon Communications Inc. Option exercise +51,964 โ€” โ€”
Jun 15, 2023 Ribbon Communications Inc. Option exercise +38,585 โ€” โ€”

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