Stephen A. Arnette

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.

2 years ยท Since 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 +13,609 โ€” โ€”
May 6, 2026 Amentum Holdings Inc. Shares withheld for tax โˆ’3,314 $24.89 $82,485
Mar 2, 2026 Amentum Holdings Inc. Option exercise +2,808 โ€” โ€”
Mar 2, 2026 Amentum Holdings Inc. Shares withheld for tax โˆ’750 $30.70 $23,025
Nov 17, 2025 Amentum Holdings Inc. Option exercise +1,178 โ€” โ€”
Nov 17, 2025 Amentum Holdings Inc. Shares withheld for tax โˆ’287 $21.49 $6,168
Nov 17, 2025 Amentum Holdings Inc. Grant or award +46,769 โ€” โ€”
Nov 16, 2025 Amentum Holdings Inc. Option exercise +5,053 โ€” โ€”
Nov 16, 2025 Amentum Holdings Inc. Shares withheld for tax โˆ’1,231 $22.07 $27,168
Nov 16, 2025 Amentum Holdings Inc. Option exercise +3,681 โ€” โ€”
Nov 16, 2025 Amentum Holdings Inc. Shares withheld for tax โˆ’897 $22.07 $19,797
Nov 16, 2025 Amentum Holdings Inc. Option exercise +4,596 โ€” โ€”
Nov 16, 2025 Amentum Holdings Inc. Shares withheld for tax โˆ’1,120 $22.07 $24,718
Nov 15, 2025 Amentum Holdings Inc. Option exercise +5,758 โ€” โ€”
Nov 15, 2025 Amentum Holdings Inc. Shares withheld for tax โˆ’1,403 $22.07 $30,964

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