December 17, 2025 · Form 4 insider transaction
Mullen Sean Thomas sold 4,194 shares of Amentum Holdings, Inc. at $28.67 per share, a transaction worth $120.2K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 2 days after the transaction.
Represents number of shares of AMTM common stock tendered for tax withholding upon vesting of restricted stock units.