John C. Plant

Sits on 3 boards. Last updated September 28, 2026

Time on boards

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

10 years of board service in total across 3 boards, counting each seat separately. Longest: Howmet Aerospace Inc., 3 years.

Howmet Aerospace Inc. Director ยท Executive Chairman & CEO
3 years ยท Since 2023
3 years ยท Since 2023
Jabil Inc. Director
2 years ยท Since 2023

Chief executive roles

Howmet Aerospace Inc. ยท Executive Chairman & CEO
Dates unknown

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
Nov 21, 2023 Howmet Aerospace Inc. Gift โˆ’242,952 โ€” โ€”
Nov 21, 2023 Howmet Aerospace Inc. Gift +140,451 โ€” โ€”
Nov 21, 2023 Howmet Aerospace Inc. Gift +102,501 โ€” โ€”
Oct 19, 2023 Jabil Inc. Grant or award +1,600 โ€” โ€”
May 11, 2023 Masco Corporation Grant or award +3,040 โ€” โ€”
Mar 31, 2023 Howmet Aerospace Inc. Option exercise +494,999 โ€” โ€”
Mar 31, 2023 Howmet Aerospace Inc. Option exercise +2,100,000 โ€” โ€”
Mar 31, 2023 Howmet Aerospace Inc. Shares withheld for tax โˆ’1,128,307 $42.37 $47,806,368
Dec 6, 2022 Howmet Aerospace Inc. Gift โˆ’284,043 โ€” โ€”
Dec 6, 2022 Howmet Aerospace Inc. Gift +284,043 โ€” โ€”

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