Mullen Sean Thomas 4
4 · Amentum Holdings, Inc. · Filed Dec 19, 2025
Insider Transaction Report
Form 4
Mullen Sean Thomas
Chief Growth Officer
Transactions
- Exercise/Conversion
Common Stock
2025-12-17+9,298→ 30,332 total - Tax Payment
Common Stock
2025-12-17$28.67/sh−4,194$120,242→ 26,138 total - Exercise/Conversion
Restricted Stock Units
2025-12-17−9,298→ 0 total→ Common Stock (9,298 underlying)
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 December 17, 2025.