4//SEC Filing
Mullen Sean Thomas 4
Accession 0001628280-25-051113
CIK 0002011286other
Filed
Nov 9, 7:00 PM ET
Accepted
Nov 10, 4:44 PM ET
Size
8.6 KB
Accession
0001628280-25-051113
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.
Documents
Issuer
Amentum Holdings, Inc.
CIK 0002011286
Entity typeother
Related Parties
1- filerCIK 0002034388
Filing Metadata
- Form type
- 4
- Filed
- Nov 9, 7:00 PM ET
- Accepted
- Nov 10, 4:44 PM ET
- Size
- 8.6 KB