Stephen A. Arnette - 03 Mar 2025 Form 4 Insider Report for Amentum Holdings, Inc. (AMTM)

Role
Chief Operating Officer
Signature
/s/ Paul W. Cobb, Jr. Attorney-in-fact
Issuer symbol
AMTM
Transactions as of
03 Mar 2025
Net transactions value
-$10,013
Form type
4
Filing time
05 Mar 2025, 16:35:20 UTC
Previous filing
08 Nov 2024
Next filing
10 Nov 2025
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMTM Common Stock Other +20,786 20,786 18 Sep 2024 Direct F1
transaction AMTM Common Stock Options Exercise +1,230 +5.9% 22,016 03 Mar 2025 Direct F2
transaction AMTM Common Stock Tax liability $7,169 -365 -1.7% $19.64 21,651 03 Mar 2025 Direct F3
transaction AMTM Common Stock Options Exercise +521 +2.4% 22,172 04 Mar 2025 Direct F2
transaction AMTM Common Stock Tax liability $2,844 -152 -0.69% $18.71 22,020 04 Mar 2025 Direct F3

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 -1,230 -30% $0.000000 2,808 03 Mar 2025 Common Stock 1,230 Direct F2, F4, F5
transaction AMTM Restricted Stock Units Options Exercise $0 -521 -100% $0.000000 0 04 Mar 2025 Common Stock 521 Direct F2, F4, F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents securities received in a pro-rata distribution in-kind by Jacobs Solutions Inc. for no consideration.
F2 Represents distribution of AMTM common stock upon vesting of restricted stock units.
F3 Represents number of shares of AMTM common stock tendered for tax withholding upon vesting of restricted stock units.
F4 Each restricted stock unit represents a contingent right to receive one share of AMTM common stock.
F5 The restricted stock units awarded vested on March 3, 2025.
F6 The restricted stock units awarded vested on March 4, 2025.