Amentum 2026年季度报告

FORM10-Q (Mark One) QUARTERLY REPORT PURSUANT TO SECTION13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934 For the quarterly period ended July3, 2026 or TRANSITION REPORT PURSUANT TO SECTION13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-42176 Amentum Holdings, Inc.(Exact name of registrant as specified in its charter) 4800 Westfields Blvd., Suite #400Chantilly, Virginia 20151(Address of principal executive offices) (703) 579-0410(Registrant’s telephone number, including area code) Securities registered pursuant to Section12(b) of the Act: Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports),and (2) has been subject to such filing requirements for the past 90 days. YesNo Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submittedpursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that theRegistrant was required to submit such files). YesNo Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smallerreporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer” “smallerreporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. Large accelerated filerNon-accelerated filer AcceleratedfilerSmallerreportingcompanyEmerging growth company If an emerging growth company, indicate by check mark if the Registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). YesNo As of August7, 2026, there were 244,506,413 shares outstanding of Amentum Holdings, Inc. common stock, par value of $0.01 pershare. AMENTUM HOLDINGS, INC. PART I:FINANCIAL INFORMATIONItem 1.Financial Statements (Unaudited)4Condensed Consolidated Balance Sheets4Condensed Consolidated Statements of Operations5Condensed Consolidated Statements of Comprehensive Income6Condensed Consolidated Statements of Shareholders' Equity7Condensed Consolidated Statements of Cash Flows8Notes to Condensed Consolidated Financial Statements9Note 1 — Basis of Presentation9Note 2 — Recent Accounting Pronouncements9Note 3 — Revenues9Note 4 — Contract Balances11Note 5 — Sales of Receivables12Note 6 — Goodwill and Intangible Assets12Note 7 — Income Taxes13Note 8 — Debt13Note 9 — Joint Ventures14Note 10 — Accumulated Other Comprehensive Income (Loss)15Note 11 — Segment Information16Note 12 — Earnings Per Share18Note 13 — Legal Proceedings and Commitments and Contingencies18Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations18Item 3.Quantitative and Qualitative Disclosures About Market Risk24Item 4.Controls and Procedures25PART II:OTHER INFORMATION26Item 1.Legal Proceedings26Item 1A.Risk Factors26Item 2.Unregistered Sales of Equity Securities and Use of Proceeds26Item 3.Defaults Upon Senior Securities26Item 4.Mine Safety Disclosures26Item 5.Other Information26Item 6.Exhibits26Signatures27 FINANCIAL INFORMATION AMENTUM HOLDINGS, INC. CONDENSED CONSOLIDATED BALANCE SHEETS(UNAUDITED)(in millions, except per share data) AMENTUM HOLDINGS, INC. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS(UNAUDITED)(in millions, except per share data) AMENTUM HOLDINGS, INC. CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME(UNAUDITED)(in millions) AMENTUM HOLDINGS, INC. CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY(UNAUDITED)(in millions) AMENTUM HOLDINGS, INC. CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS(UNAUDITED)(in millions) AMENTUM HOLDINGS, INC. NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Note 1 — Basis of Presentation Amentum Holdings, Inc. (collectively with its subsidiaries, “we,” “us,” “our,” “Amentum,” or the “Company”) is a global advancedengineering and technology solutions provider to a broad base of U.S. and allied government agencies, and customers in internationaland commercial markets, supporting programs of critical national importance across energy and environmental, intelligence, space,defense, civilian and commercial end-markets. We offer a broad reach of capabilities including energy, environmental remediation,intelligence and counter threat solutions, data fusion and analytics, engineering and integration, advanced test, training and readiness,and citizen solutions. As a leading provider of differentiated technology solutions, we have built a reperto