4//SEC Filing
Burton Darren 4
Accession 0001628280-25-056097
CIK 0002011286other
Filed
Dec 8, 7:00 PM ET
Accepted
Dec 9, 4:28 PM ET
Size
8.6 KB
Accession
0001628280-25-056097
Insider Transaction Report
Form 4
Burton Darren
Chief People Officer
Transactions
- Exercise/Conversion
Common Stock
2025-12-05+2,721→ 24,992 total - Tax Payment
Common Stock
2025-12-05$28.88/sh−1,392$40,201→ 23,600 total - Exercise/Conversion
Restricted Stock Units
2025-12-05−2,721→ 5,444 total→ Common Stock (2,721 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 5, 2025.
Documents
Issuer
Amentum Holdings, Inc.
CIK 0002011286
Entity typeother
Related Parties
1- filerCIK 0002044904
Filing Metadata
- Form type
- 4
- Filed
- Dec 8, 7:00 PM ET
- Accepted
- Dec 9, 4:28 PM ET
- Size
- 8.6 KB