John B. Walker

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: Magnolia Oil & Gas Corporation, 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
Sep 23, 2024 Magnolia Oil & Gas Corporation Derivative conversion +4,934,442 โ€” โ€”
Sep 23, 2024 Magnolia Oil & Gas Corporation Open-market sale โˆ’7,000,000 $25.86 $181,020,000
May 14, 2024 Magnolia Oil & Gas Corporation Derivative conversion +7,868,884 โ€” โ€”
May 14, 2024 Magnolia Oil & Gas Corporation Open-market sale โˆ’12,000,000 $25.58 $306,960,000
May 7, 2024 Magnolia Oil & Gas Corporation Grant or award +6,364 โ€” โ€”
May 3, 2023 Magnolia Oil & Gas Corporation Grant or award +7,517 โ€” โ€”

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