Mullen Sean Thomas 4
4 · Amentum Holdings, Inc. · Filed Nov 10, 2025
Insider Transaction Report
Form 4
Mullen Sean Thomas
Chief Growth Officer
Transactions
- Exercise/Conversion
Common Stock
2025-11-06+4,838→ 4,838 total - Exercise/Conversion
Restricted Stock Units
2025-11-06−4,838→ 9,678 total→ Common Stock (4,838 underlying) - Tax Payment
Common Stock
2025-11-06$21.79/sh−1,621$35,322→ 3,217 total
Footnotes (4)
- [F1]Represents distribution of AMTM common stock upon vesting of restricted stock units.
- [F2]Represents number of shares of AMTM common stock tendered for tax withholding upon vesting of restricted stock units.
- [F3]Each restricted stock unit represents a contingent right to receive one share of AMTM common stock.
- [F4]The restricted stock units awarded vested on November 6, 2025.