John E. Heller

Chief Executive Officer at Amentum Holdings Inc.

Sits on 1 board. Last updated September 28, 2026

Time on boards

Boards served
1
Current seats
1
Board service
2 years
Director since
2024

2 years of board service in total across 1 board, counting each seat separately. Longest: Amentum Holdings Inc., 2 years.

Amentum Holdings Inc. Director ยท Chief Executive Officer
2 years ยท Since 2024

Chief executive roles

Amentum Holdings Inc. ยท Chief Executive Officer
Since September 2024

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
May 6, 2026 Amentum Holdings Inc. Option exercise +18,145 โ€” โ€”
May 6, 2026 Amentum Holdings Inc. Shares withheld for tax โˆ’8,184 $24.89 $203,700
Jan 28, 2026 Amentum Holdings Inc. Option exercise +51,979 โ€” โ€”
Jan 28, 2026 Amentum Holdings Inc. Shares withheld for tax โˆ’19,768 $35.71 $705,915
Nov 17, 2025 Amentum Holdings Inc. Grant or award +155,897 โ€” โ€”
Nov 6, 2025 Amentum Holdings Inc. Option exercise +39,617 โ€” โ€”
Nov 6, 2025 Amentum Holdings Inc. Shares withheld for tax โˆ’17,868 $21.79 $389,344
Dec 17, 2024 Amentum Holdings Inc. Other +91,794 โ€” โ€”

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