ASP Amentum Investco LP - Dec 17, 2024 Form 3/A - Amendment Insider Report for Amentum Holdings, Inc. (AMTM)

Role: 10%+ Owner
Signature: /s/ Eric L. Schondorf, Authorized Signatory for ASP Manager Corp., the general partner of ASP Amentum Investco LP
Stock symbol: AMTM
Transactions as of: Dec 17, 2024
Transactions value $: $0
Form type: 3/A - Amendment
Date filed: 12/30/2024, 05:34 PM
Date Of Original Report: Dec 27, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	AMTM	Common Stock						43.9M	Dec 17, 2024	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	American Securities LLC is the sole stockholder of ASP Manager Corp., which is the general partner of ASP Amentum Investco LP. Each of the Reporting Persons other than ASP Amentum Investco LP may be deemed to share beneficial ownership of the common shares of Amentum Holdings, Inc. directly held by ASP Amentum Investco LP.

Remarks:

This amendment is being filed to include ASP Amentum Investco LP as a reporting person for the securities covered by this statement.