Stephen A. Arnette - Mar 3, 2025 Form 4 Insider Report for Amentum Holdings, Inc. (AMTM)

Role
Chief Operating Officer
Signature
/s/ Paul W. Cobb, Jr. Attorney-in-fact
Stock symbol
AMTM
Transactions as of
Mar 3, 2025
Transactions value $
-$10,013
Form type
4
Date filed
3/5/2025, 04:35 PM
Previous filing
Nov 8, 2024
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 +20.8K 20.8K Sep 18, 2024 Direct F1
transaction AMTM Common Stock Options Exercise +1.23K +5.92% 22K Mar 3, 2025 Direct F2
transaction AMTM Common Stock Tax liability -$7.17K -365 -1.66% $19.64 21.7K Mar 3, 2025 Direct F3
transaction AMTM Common Stock Options Exercise +521 +2.41% 22.2K Mar 4, 2025 Direct F2
transaction AMTM Common Stock Tax liability -$2.84K -152 -0.69% $18.71 22K Mar 4, 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 -1.23K -30.46% $0.00 2.81K Mar 3, 2025 Common Stock 1.23K Direct F2, F4, F5
transaction AMTM Restricted Stock Units Options Exercise $0 -521 -100% $0.00 0 Mar 4, 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.