Form 4 for AMTM Amentum Holdings, Inc.

Accepted 2025-05-12 00:00:00 ET · period of report 2025-05-08 · accession 0000950157-25-000397 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
I	2025-05-12	2025-05-08	AMTM	Amentum Joint Venture LP	Dir	J - Other	$0.00	-2.43M	0	-100%	$0

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2025-05-08	J	D	2,433,022	$0.00	0	I By Amentum Joint Venture LP	—	—	(F2) On May 8, 2025, Amentum JV made pro rata distributions-in-kind of all of the shares of the Issuer held by Amentum JV to each of its limited partners in accordance with the limited partnership agreement of Amentum JV. As a result, Amentum JV no longer holds, and each of the Reporting Persons no longer beneficially owns, any shares of the Issuer. (F1) This Form 4 is filed jointly by (i) Amentum Joint Venture GP LLC and (ii) Amentum Joint Venture LP ("Amentum JV"). Amentum Joint Venture GP LLC is the general partner of Amentum JV and may be deemed to have indirect voting and investment control over the shares held by Amentum JV. The shares of the Issuer reported as disposed in this Form 4 were owned directly by Amentum JV as a result of a Reverse Morris Trust transaction, with the Issuer surviving and being renamed Amentum Holdings, Inc., pursuant to the merger agreement and separation and distribution agreement, each dated as of November 20, 2023, among, in each case, Jacobs Solutions, Inc., the Issuer, Amentum Parent Holdings LLC and Amentum JV (as amended). The purpose of this Form 4 is to report that the Reporting Persons no longer beneficially own any shares of the Issuer.