Arkolith/Insider Trading/AMTM/Form 4

Arnette Stephen A

Chief Operating OfficerAmentum Holdings, Inc. (AMTM) · full profile →Form 4 · filed Nov 18, 2025
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
12
8 non-derivative · 4 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Nov 16, 2025Tax withholding(F)1K$22.07$25K46K
Nov 16, 2025Option exercise(M)5K——41K
Nov 16, 2025Option exercise(M)4K——43K
Nov 16, 2025Tax withholding(F)897$22.07$20K43K
Nov 16, 2025Option exercise(M)5K——47K
Nov 16, 2025Tax withholding(F)1K$22.07$27K40K
Nov 15, 2025Option exercise(M)6K——37K
Nov 15, 2025Tax withholding(F)1K$22.07$31K36K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Nov 16, 2025Option exercise(M)5K—$00
Nov 16, 2025Option exercise(M)4K—$00
Nov 16, 2025Option exercise(M)5K—$05K
Nov 15, 2025Option exercise(M)6K—$012K

Transaction Codes

F
Shares withheld for taxes
M
Option exercise / conversion

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001628280-25-052958) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML