Donald J. Listwin

Sits on 1 board. Last updated September 28, 2026

Time on boards

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

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

Calix Inc Director
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
Aug 4, 2023 Calix Inc Open-market sale โˆ’100,000 $43.15 $4,315,000
May 17, 2023 Calix Inc Option exercise +9,960 $33.46 $333,262
Apr 24, 2023 Calix Inc Gift โˆ’2,500 โ€” โ€”
Jan 31, 2023 Calix Inc Gift โˆ’9,000 โ€” โ€”
Jan 20, 2023 Calix Inc Option exercise +9,073 $38.96 $353,484

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