{"url_path":"/sec/amtm/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 Exhibits","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-12","source_url":"https://www.sec.gov/Archives/edgar/data/2011286/0001628280-26-034156-index.html","accession_number":"0001628280-26-034156","cik":"0002011286","ticker":"AMTM","issuer_name":"Amentum Holdings, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/2011286/0001628280-26-034156-index.html","primary_entity_key":"0002011286","primary_entity_name":"Amentum Holdings, Inc."},"word_count":224,"has_tables":true,"body_markdown":"Item 6. Exhibits\n\nFiled\n with this Form 10-QIncorporated by Reference\n\nExhibit No.DescriptionFormFiling DateExhibit No.\n\n[10.1](https://www.sec.gov/Archives/edgar/data/2011286/000201128626000011/exhibit101-1stamendment.htm)\n\n[First Amendment, dated as of April 24, 2026, among Amentum Holdings, Inc., Amentum Services, Inc., Amentum Technology, Inc., the other loan parties party thereto, the lenders party thereto, the issuing banks party thereto and JPMorgan Chase Bank, N.A., as administrative agent](https://www.sec.gov/Archives/edgar/data/2011286/000201128626000011/exhibit101-1stamendment.htm)\n8-KApril 28, 202610.1\n\n[31.1](amtm040326ex311.htm)\n\n[Section 302 Certification of John E. Heller](amtm040326ex311.htm)\nX\n\n[31.2](amtm040326ex312.htm)\n\n[Section 302 Certification Travis B. Johnson](amtm040326ex312.htm)\nX\n\n[32.1](amtm040326ex321.htm)\n\n[Section 906 Certification John E. Heller](amtm040326ex321.htm)\nX\n\n[32.2](amtm040326ex322.htm)\n\n[Section 906 Certification Travis B. Johnson](amtm040326ex322.htm)\nX\n\n101.INSXBRL Instance Document (the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document)\n\n101.SCHInline XBRL Taxonomy Extension Schema Document\n\n101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document\n\n101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document\n\n101.LABInline XBRL Taxonomy Extension Label Linkbase Document\n\n101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document\n\n104Cover Page Interactive Data File (embedded within the Inline XBRL document and contained in Exhibit 101)\n\n25\n\nSIGNATURES\n\nPursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.\n\nAMENTUM HOLDINGS, INC.\n\nRegistrant\n\nDate:May 12, 2026By: /s/ Travis B. Johnson\n\nTravis B. Johnson\n\nChief Financial Officer\n\n(Principal Financial Officer and Principal Accounting Officer)\n\n26"}