<SEC-DOCUMENT>0000950157-24-001690.txt : 20241219
<SEC-HEADER>0000950157-24-001690.hdr.sgml : 20241219
<ACCEPTANCE-DATETIME>20241219180532
ACCESSION NUMBER:		0000950157-24-001690
CONFORMED SUBMISSION TYPE:	SCHEDULE 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20241219
DATE AS OF CHANGE:		20241219

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Amentum Holdings, Inc.
		CENTRAL INDEX KEY:			0002011286
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		ORGANIZATION NAME:           	07 Trade & Services
		IRS NUMBER:				990622272
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0927

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-94638
		FILM NUMBER:		241564584

	BUSINESS ADDRESS:	
		STREET 1:		600 WILLIAM NORTHERN BLVD
		CITY:			TULLAHOMA
		STATE:			TN
		ZIP:			37388
		BUSINESS PHONE:		2149208175

	MAIL ADDRESS:	
		STREET 1:		600 WILLIAM NORTHERN BLVD
		CITY:			TULLAHOMA
		STATE:			TN
		ZIP:			37388

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Amazon Holdco Inc.
		DATE OF NAME CHANGE:	20240208

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Amentum Joint Venture LP
		CENTRAL INDEX KEY:			0002037182
		ORGANIZATION NAME:           	
		IRS NUMBER:				843998676
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		C/O GOLDBERG LINDSAY & CO. LLC
		STREET 2:		630 FIFTH AVENUE, 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10111
		BUSINESS PHONE:		212-651-1100

	MAIL ADDRESS:	
		STREET 1:		C/O GOLDBERG LINDSAY & CO. LLC
		STREET 2:		630 FIFTH AVENUE, 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10111
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13D" xmlns:com="http://www.sec.gov/edgar/common">
<headerData>
<submissionType>SCHEDULE 13D/A</submissionType>
<previousAccessionNumber>0000950157-24-001378</previousAccessionNumber>
<filerInfo>
<filer>
<filerCredentials>
<cik>0002037182</cik>
<ccc>XXXXXXXX</ccc>
</filerCredentials>
</filer>
<liveTestFlag>LIVE</liveTestFlag>



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</headerData>
<formData>
<coverPageHeader>
<amendmentNo>1</amendmentNo>
<securitiesClassTitle>Common Stock, par value $0.01 per share</securitiesClassTitle>
<dateOfEvent>12/17/2024</dateOfEvent>
<previouslyFiledFlag>true</previouslyFiledFlag>
<issuerInfo>
<issuerCIK>0002011286</issuerCIK>
<issuerCUSIP>023939101</issuerCUSIP>
<issuerName>Amentum Holdings, Inc.</issuerName>
<address>
<com:street1>4800 Westfields Blvd.</com:street1>
<com:street2>Suite #400</com:street2>
<com:city>Chantilly</com:city>
<com:stateOrCountry>VA</com:stateOrCountry>
<com:zipCode>20151</com:zipCode>
</address>
</issuerInfo>
<authorizedPersons>
<notificationInfo>
<personName>Eric L. Schondorf, GC</personName>
<personPhoneNum>(212) 476-8000</personPhoneNum>
<personAddress>
<com:street1>American Securities LLC</com:street1>
<com:street2>590 Madison Avenue, 38th Floor</com:street2>
<com:city>New York</com:city>
<com:stateOrCountry>NY</com:stateOrCountry>
<com:zipCode>10022</com:zipCode>
</personAddress>
</notificationInfo>
<notificationInfo>
<personName>James C. Pickel, Jr., GC</personName>
<personPhoneNum>(212) 651-1100</personPhoneNum>
<personAddress>
<com:street1>Goldberg Lindsay &amp; Co. LLC</com:street1>
<com:street2>630 Fifth Avenue, 30th Floor</com:street2>
<com:city>New York</com:city>
<com:stateOrCountry>NY</com:stateOrCountry>
<com:zipCode>10111</com:zipCode>
</personAddress>
</notificationInfo>
</authorizedPersons>
</coverPageHeader>
<reportingPersons>
<reportingPersonInfo>
<reportingPersonCIK>0002037182</reportingPersonCIK>
<reportingPersonName>Amentum Joint Venture LP</reportingPersonName>
<citizenshipOrOrganization>DE</citizenshipOrOrganization>
<soleVotingPower>0</soleVotingPower>
<sharedVotingPower>0</sharedVotingPower>
<soleDispositivePower>0</soleDispositivePower>
<sharedDispositivePower>0</sharedDispositivePower>
<aggregateAmountOwned>0</aggregateAmountOwned>
<isAggregateExcludeShares>N</isAggregateExcludeShares>
<percentOfClass>0</percentOfClass>
<typeOfReportingPerson>OO</typeOfReportingPerson>
</reportingPersonInfo>
<reportingPersonInfo>
<reportingPersonCIK>0002037401</reportingPersonCIK>
<reportingPersonName>Amentum Joint Venture GP LLC</reportingPersonName>
<citizenshipOrOrganization>DE</citizenshipOrOrganization>
<soleVotingPower>0</soleVotingPower>
<sharedVotingPower>0</sharedVotingPower>
<soleDispositivePower>0</soleDispositivePower>
<sharedDispositivePower>0</sharedDispositivePower>
<aggregateAmountOwned>0</aggregateAmountOwned>
<isAggregateExcludeShares>N</isAggregateExcludeShares>
<percentOfClass>0</percentOfClass>
<typeOfReportingPerson>OO</typeOfReportingPerson>
</reportingPersonInfo>
</reportingPersons>
<items1To7>
<item1>
<securityTitle>Common Stock, par value $0.01 per share</securityTitle>
<issuerName>Amentum Holdings, Inc.</issuerName>
<issuerPrincipalAddress>
<com:street1>4800 Westfields Blvd.</com:street1>
<com:street2>Suite #400</com:street2>
<com:city>Chantilly</com:city>
<com:stateOrCountry>VA</com:stateOrCountry>
<com:zipCode>20151</com:zipCode>
</issuerPrincipalAddress>
<commentText>This Amendment No. 1 (this "Amendment No. 1") to the Schedule 13D filed with the Securities and Exchange Commission (the "Commission") on September 27, 2024 (as amended and supplemented from time to time, this "Schedule 13D") is being filed jointly by Amentum Joint Venture LP, a Delaware limited partnership ("Amentum JV"), and Amentum Joint Venture GP LLC, a Delaware limited liability company ("Amentum GP" and, together with Amentum JV, the "Reporting Persons"), the general partner of Amentum JV with respect to the Common Stock, par value $0.01 per share (each, a "Common Share"), of Amentum Holdings, Inc., a Delaware corporation (the "Issuer") beneficially owned by the Reporting Persons.  Amentum GP may be deemed to have indirect voting and investment control over shares held by Amentum JV.  &#13;
&#13;
The purpose of this Amendment No. 1 is to report that Amentum JV and Amentum GP no longer beneficially own any Common Shares or any other securities of the Issuer. &#13;
&#13;
Except as set forth below, all Items of this Schedule 13D remain unchanged.  Capitalized terms used in this Amendment No. 1 and not otherwise defined shall have the respective meanings assigned to such terms in this Schedule 13D.</commentText>
</item1>
<item3>
<fundsSource>On December 17, 2024, Amentum JV made pro rata distributions-in-kind of all of the Merger Consideration Shares (the "JV Distribution") to each of its limited partners in accordance with the limited partnership agreement of Amentum JV.  As a result of the JV Distribution, Amentum JV no longer holds, and each of the Reporting Persons no longer beneficially owns, any Common Shares.</fundsSource>
</item3>
<item5>
<percentageOfClassSecurities>The information set forth on the cover pages of this Amendment No. 1, and the information set forth or incorporated by reference in Items 2, 3, 4 and 6 of this Schedule 13D are hereby incorporated by reference in this Item 5(a)-(b).  The Common Shares held by the Reporting Persons represent 0.0% of the issued and outstanding Common Shares.</percentageOfClassSecurities>
<numberOfShares>Same as (a).</numberOfShares>
<date5PercentOwnership>December 17, 2024</date5PercentOwnership>
</item5>
</items1To7>
<signatureInfo>
<signaturePerson>
<signatureReportingPerson>Amentum Joint Venture LP</signatureReportingPerson>
<signatureDetails>
<signature>/s/ Eric L. Schondorf</signature>
<title>By:  Amentum Joint Venture GP LLC, its general partner; Eric L. Schondorf / Authorized Signatory</title>
<date>12/19/2024</date>
</signatureDetails>
<signatureDetails>
<signature>/s/ James C. Pickel, Jr.</signature>
<title>By:  Amentum Joint Venture GP LLC, its general partner; James C. Pickel, Jr. / Authorized Signatory</title>
<date>12/19/2024</date>
</signatureDetails>
</signaturePerson>
<signaturePerson>
<signatureReportingPerson>Amentum Joint Venture GP LLC</signatureReportingPerson>
<signatureDetails>
<signature>/s/ Eric L. Schondorf</signature>
<title>Eric L. Schondorf / Authorized Signatory</title>
<date>12/19/2024</date>
</signatureDetails>
<signatureDetails>
<signature>/s/ James C. Pickel, Jr.</signature>
<title>James C. Pickel, Jr. / Authorized Signatory</title>
<date>12/19/2024</date>
</signatureDetails>
</signaturePerson>
</signatureInfo>
</formData>
</edgarSubmission>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
