Sandra E. Rowland - 06 Feb 2026 Form 4 Insider Report for Amentum Holdings, Inc. (AMTM)

Role
Director
Signature
/s/ Indira Lall, Attorney-in-fact
Issuer symbol
AMTM
Transactions as of
06 Feb 2026
Net transactions value
$0
Form type
4
Filing time
10 Feb 2026, 16:11:22 UTC
Previous filing
08 May 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Rowland Sandra E. Director C/O AMENTUM HOLDINGS, INC., 4800 WESTFIELDS BOULEVARD, SUITE 400, CHANTILLY /s/ Indira Lall, Attorney-in-fact 10 Feb 2026 0001629360

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMTM Common Stock Options Exercise +11,564 +335% 15,011 06 Feb 2026 Direct F1
transaction AMTM Common Stock Award $0 +5,062 +34% $0.000000 20,073 06 Feb 2026 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction AMTM Restricted Stock Units Options Exercise $0 -11,564 -100% $0.000000 0 06 Feb 2026 Common Stock 11,564 Direct F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents distribution of AMTM common stock upon vesting of restricted stock units.
F2 The restricted stock units shall vest on the date of the next annual meeting of stockholders of the Issuer.
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 February 6, 2026.