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
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 6, 2026 | Amentum Holdings Inc. | Option exercise | +12,702 | — | — |
| Nov 6, 2026 | Amentum Holdings Inc. | Shares withheld for tax | −4,999 | $21.25 | $106,229 |
| May 6, 2026 | Amentum Holdings Inc. | Option exercise | +13,609 | — | — |
| May 6, 2026 | Amentum Holdings Inc. | Shares withheld for tax | −3,314 | $24.89 | $82,485 |
| Mar 2, 2026 | Amentum Holdings Inc. | Option exercise | +2,808 | — | — |
| Mar 2, 2026 | Amentum Holdings Inc. | Shares withheld for tax | −750 | $30.70 | $23,025 |
| Nov 17, 2025 | Amentum Holdings Inc. | Option exercise | +1,178 | — | — |
| Nov 17, 2025 | Amentum Holdings Inc. | Shares withheld for tax | −287 | $21.49 | $6,168 |
| Nov 17, 2025 | Amentum Holdings Inc. | Grant or award | +46,769 | — | — |
| Nov 16, 2025 | Amentum Holdings Inc. | Option exercise | +5,053 | — | — |
| Nov 16, 2025 | Amentum Holdings Inc. | Shares withheld for tax | −1,231 | $22.07 | $27,168 |
| Nov 16, 2025 | Amentum Holdings Inc. | Option exercise | +3,681 | — | — |
| Nov 16, 2025 | Amentum Holdings Inc. | Shares withheld for tax | −897 | $22.07 | $19,797 |
| Nov 16, 2025 | Amentum Holdings Inc. | Option exercise | +4,596 | — | — |
| Nov 16, 2025 | Amentum Holdings Inc. | Shares withheld for tax | −1,120 | $22.07 | $24,718 |
Questions about Stephen A. Arnette
What boards is Stephen A. Arnette on?
Stephen A. Arnette sits on the board of Amentum Holdings Inc.
How long has Stephen A. Arnette served on boards?
Our records show at least 2 years of board service across 1 board, the earliest from 2024.
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