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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-Q

(Mark One)

þ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended April 3, 2026
or

o | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE 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)

Delaware | 99-0622272
(State or other jurisdiction of | (I.R.S. Employer
incorporation or organization) | Identification No.)

4800 Westfields Blvd., Suite #400
Chantilly, Virginia 20151
(Address of principal executive offices)
(703) 579-0410
(Registrant’s telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:

Title of each class | Trading Symbol(s) | Name of each exchange on which registered
Common Stock, par value $0.01 per share | AMTM | New York Stock Exchange

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange 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 þ No o

Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files). Yes þ No o
Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer | þ | Accelerated filer | o
Non-accelerated filer | o | Smaller reporting company | o
|  | Emerging growth company | o

If an emerging growth company, indicate by check mark if the Registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o
Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No þ
As of May 8, 2026, there were 244,316,319 shares outstanding of Amentum Holdings, Inc. common stock, par value of $0.01 per share.

AMENTUM HOLDINGS, INC.

PART I: | FINANCIAL INFORMATION |
Item 1. | Financial Statements (Unaudited) | 4
| Condensed Consolidated Balance Sheets | 4
| Condensed Consolidated Statements of Operations | 5
| Condensed Consolidated Statements of Comprehensive Income | 6
| Condensed Consolidated Statements of Shareholders' Equity | 7
| Condensed Consolidated Statements of Cash Flows | 8
| Notes to Condensed Consolidated Financial Statements | 9
| Note 1 — Basis of Presentation | 9
| Note 2 — Recent Accounting Pronouncements | 9
| Note 3 — Revenues | 9
| Note 4 — Contract Balances | 11
| Note 5 — Sales of Receivables | 12
| Note 6 — Goodwill and Intangible Assets | 12
| Note 7 — Income Taxes | 13
| Note 8 — Debt | 13
| Note 9 — Joint Ventures | 14
| Note 10 — Accumulated Other Comprehensive Income (Loss) | 15
| Note 11 — Segment Information | 16
| Note 12 — Earnings Per Share | 17
| Note 13 — Legal Proceedings and Commitments and Contingencies | 17
| Note 14 — Subsequent Events | 18
Item 2. | Management’s Discussion and Analysis of Financial Condition and Results of Operations | 18
Item 3. | Quantitative and Qualitative Disclosures About Market Risk | 24
Item 4. | Controls and Procedures | 24
PART II: | OTHER INFORMATION | 25
Item 1. | Legal Proceedings | 25
Item 1A. | Risk Factors | 25
Item 2. | Unregistered Sales of Equity Securities and Use of Proceeds | 25
Item 3. | Defaults Upon Senior Securities | 25
Item 4. | Mine Safety Disclosures | 25
Item 5. | Other Information | 25
Item 6. | Exhibits | 25
| Signatures | 26

3

PART I
FINANCIAL INFORMATION
Item 1. Financial Statements (Unaudited)
AMENTUM HOLDINGS, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(UNAUDITED)
(in millions, except per share data)

| April 3, 2026 |  | October 3, 2025
ASSETS |  |  |
Current assets: |  |  |
Cash and cash equivalents | $ | 428 |  |  | $ | 437 |
Accounts receivable, net | 2,496 |  |  | 2,479 |
Prepaid expenses and other current assets | 173 |  |  | 197 |
Total current assets | 3,097 |  |  | 3,113 |
Property and equipment, net | 105 |  |  | 114 |
Equity method investments | 216 |  |  | 196 |
Goodwill | 5,698 |  |  | 5,703 |
Intangible assets, net | 1,769 |  |  | 1,955 |
Other long-term assets | 285 |  |  | 379 |
Total assets | $ | 11,170 |  |  | $ | 11,460 |
LIABILITIES |  |  |
Current liabilities: |  |  |
Current portion of long-term debt | $ | 40 |  |  | $ | 42 |
Accounts payable | 832 |  |  | 892 |
Accrued compensation and benefits | 618 |  |  | 705 |
Contract liabilities | 180 |  |  | 227 |
Other current liabilities | 421 |  |  | 488 |
Total current liabilities | 2,091 |  |  | 2,354 |
Long-term debt, net of current portion | 3,887 |  |  | 3,901 |
Deferred tax liabilities | 259 |  |  | 260 |
Other long-term liabilities | 230 |  |  | 325 |
Total liabilities | 6,467 |  |  | 6,840 |
Commitments and contingencies (Note 13) |  |  |
SHAREHOLDERS' EQUITY |  |  |
Common stock, $0.01 par value, 1,000,000,000 shares authorized; 244,090,344 shares issued and outstanding at April 3, 2026 and 243,464,776 shares issued and outstanding at October 3, 2025. | 2 |  |  | 2 |
Additional paid-in capital | 4,935 |  |  | 4,924 |
Retained deficit | (363) |  |  | (461) |
Accumulated other comprehensive income | 35 |  |  | 40 |
Total Amentum shareholders' equity | 4,609 |  |  | 4,505 |
Non-controlling interests | 94 |  |  | 115 |
Total shareholders' equity | 4,703 |  |  | 4,620 |
Total liabilities and shareholders' equity | $ | 11,170 |  |  | $ | 11,460 |

See notes to unaudited condensed consolidated financial statements
4

AMENTUM HOLDINGS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(UNAUDITED)
(in millions, except per share data)

| Three Months Ended |  | Six Months Ended
| April 3, 2026 |  | March 28, 2025 |  | April 3, 2026 |  | March 28, 2025
Revenues | $ | 3,478 |  |  | $ | 3,491 |  |  | $ | 6,715 |  |  | $ | 6,907 |
Cost of revenues | (3,133) |  |  | (3,124) |  |  | (6,044) |  |  | (6,179) |
Selling, general, and administrative expenses | (124) |  |  | (145) |  |  | (239) |  |  | (275) |
Amortization of intangibles | (94) |  |  | (120) |  |  | (188) |  |  | (240) |
Equity earnings of non-consolidated subsidiaries | 24 |  |  | 8 |  |  | 45 |  |  | 29 |
Operating income | 151 |  |  | 110 |  |  | 289 |  |  | 242 |
Interest expense and other, net | (73) |  |  | (86) |  |  | (147) |  |  | (173) |
Income before income taxes | 78 |  |  | 24 |  |  | 142 |  |  | 69 |
Provision for income taxes | (24) |  |  | (22) |  |  | (44) |  |  | (46) |
Net income including non-controlling interests | 54 |  |  | 2 |  |  | 98 |  |  | 23 |
Less: net income attributable to non-controlling interests | — |  |  | 2 |  |  | — |  |  | (7) |
Net income attributable to common shareholders | $ | 54 |  |  | $ | 4 |  |  | $ | 98 |  |  | $ | 16 |
Earnings per share: |  |  |  |  |  |  |
Basic | $ | 0.22 |  |  | $ | 0.02 |  |  | $ | 0.40 |  |  | $ | 0.07 |
Diluted | $ | 0.22 |  |  | $ | 0.02 |  |  | $ | 0.40 |  |  | $ | 0.07 |

See notes to unaudited condensed consolidated financial statements
5

AMENTUM HOLDINGS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(UNAUDITED)
(in millions)

| Three Months Ended |  | Six Months Ended
| April 3, 2026 |  | March 28, 2025 |  | April 3, 2026 |  | March 28, 2025
Net income including non-controlling interests | $ | 54 |  |  | $ | 2 |  |  | $ | 98 |  |  | $ | 23 |
Other comprehensive (loss) income: |  |  |  |  |  |  |
Net unrealized gain (loss) on interest rate swaps | 4 |  |  | (7) |  |  | 5 |  |  | 15 |
Foreign currency translation adjustments | (7) |  |  | 11 |  |  | (8) |  |  | (7) |
Pension adjustments | (1) |  |  | — |  |  | (1) |  |  | — |
Other comprehensive (loss) income | (4) |  |  | 4 |  |  | (4) |  |  | 8 |
Income tax (provision) benefit related to items of other comprehensive (loss) income | (1) |  |  | 2 |  |  | (1) |  |  | (2) |
Other comprehensive (loss) income, net of tax | (5) |  |  | 6 |  |  | (5) |  |  | 6 |
Comprehensive income | 49 |  |  | 8 |  |  | 93 |  |  | 29 |
Net income attributable to non-controlling interests | — |  |  | 2 |  |  | — |  |  | (7) |
Comprehensive income attributable to common shareholders | $ | 49 |  |  | $ | 10 |  |  | $ | 93 |  |  | $ | 22 |

See notes to unaudited condensed consolidated financial statements
6

AMENTUM HOLDINGS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
(UNAUDITED)
(in millions)

| Common Stock |  | Additional Paid-in Capital |  | Retained Deficit |  | Accumulated Other Comprehensive Income |  | Total Shareholders' Equity Attributable to Amentum Holdings, Inc. |  | Non-controlling Interests |  | Total Shareholders' Equity
| Shares |  | Amount |  |  |  |  |  |
Balance at January 2, 2026 | 244 |  |  | $ | 2 |  |  | $ | 4,931 |  |  | $ | (417) |  |  | $ | 40 |  |  | $ | 4,556 |  |  | $ | 106 |  |  | $ | 4,662 |
Net income including non-controlling interests | — |  |  | — |  |  | — |  |  | 54 |  |  | — |  |  | 54 |  |  | — |  |  | 54 |
Other comprehensive loss, net of tax | — |  |  | — |  |  | — |  |  | — |  |  | (5) |  |  | (5) |  |  | — |  |  | (5) |
Distributions to non-controlling interests | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (12) |  |  | (12) |
Stock-based compensation and other | — |  |  | — |  |  | 4 |  |  | — |  |  | — |  |  | 4 |  |  | — |  |  | 4 |
Balance at April 3, 2026 | 244 |  |  | $ | 2 |  |  | $ | 4,935 |  |  | $ | (363) |  |  | $ | 35 |  |  | $ | 4,609 |  |  | $ | 94 |  |  | $ | 4,703 |

| Common Stock |  | Additional Paid-in Capital |  | Retained Deficit |  | Accumulated Other Comprehensive Income |  | Total Shareholders' Equity Attributable to Amentum Holdings, Inc. |  | Non-controlling Interests |  | Total Shareholders' Equity
| Shares |  | Amount |  |  |  |  |  |
Balance at December 27, 2024 | 243 |  |  | $ | 2 |  |  | $ | 4,965 |  |  | $ | (515) |  |  | $ | 23 |  |  | $ | 4,475 |  |  | $ | 88 |  |  | $ | 4,563 |
Net income (loss) including non-controlling interests | — |  |  | — |  |  | — |  |  | 4 |  |  | — |  |  | 4 |  |  | (2) |  |  | 2 |
Other comprehensive income, net of tax | — |  |  | — |  |  | — |  |  | — |  |  | 6 |  |  | 6 |  |  | — |  |  | 6 |
Measurement period adjustments | — |  |  | — |  |  | (63) |  |  | — |  |  | — |  |  | (63) |  |  | 75 |  |  | 12 |
Distributions to non-controlling interests | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (9) |  |  | (9) |
Stock-based compensation and other | — |  |  | — |  |  | 5 |  |  | — |  |  | — |  |  | 5 |  |  | — |  |  | 5 |
Balance at March 28, 2025 | 243 |  |  | $ | 2 |  |  | $ | 4,907 |  |  | $ | (511) |  |  | $ | 29 |  |  | $ | 4,427 |  |  | $ | 152 |  |  | $ | 4,579 |

| Common Stock |  | Additional Paid-in Capital |  | Retained Deficit |  | Accumulated Other Comprehensive Income |  | Total Shareholders' Equity Attributable to Amentum Holdings, Inc. |  | Non-controlling Interests |  | Total Shareholders' Equity
| Shares |  | Amount |  |  |  |  |  |
Balance at October 3, 2025 | 243 |  |  | $ | 2 |  |  | $ | 4,924 |  |  | $ | (461) |  |  | $ | 40 |  |  | $ | 4,505 |  |  | $ | 115 |  |  | $ | 4,620 |
Net income including non-controlling interests | — |  |  | — |  |  | — |  |  | 98 |  |  | — |  |  | 98 |  |  | — |  |  | 98 |
Other comprehensive loss, net of tax | — |  |  | — |  |  | — |  |  | — |  |  | (5) |  |  | (5) |  |  | — |  |  | (5) |
Issuances of common stock | 1 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Distributions to non-controlling interests | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (21) |  |  | (21) |
Stock-based compensation and other | — |  |  | — |  |  | 11 |  |  | — |  |  | — |  |  | 11 |  |  | — |  |  | 11 |
Balance at April 3, 2026 | 244 |  |  | $ | 2 |  |  | $ | 4,935 |  |  | $ | (363) |  |  | $ | 35 |  |  | $ | 4,609 |  |  | $ | 94 |  |  | $ | 4,703 |

| Common Stock |  | Additional Paid-in Capital |  | Retained Deficit |  | Accumulated Other Comprehensive Income |  | Total Shareholders' Equity Attributable to Amentum Holdings, Inc. |  | Non-controlling Interests |  | Total Shareholders' Equity
| Shares |  | Amount |  |  |  |  |  |
Balance at September 27, 2024 | 243 |  |  | $ | 2 |  |  | $ | 4,962 |  |  | $ | (527) |  |  | $ | 23 |  |  | $ | 4,460 |  |  | $ | 92 |  |  | $ | 4,552 |
Net income including non-controlling interests | — |  |  | — |  |  | — |  |  | 16 |  |  | — |  |  | 16 |  |  | 7 |  |  | 23 |
Other comprehensive income, net of tax | — |  |  | — |  |  | — |  |  | — |  |  | 6 |  |  | 6 |  |  | — |  |  | 6 |
Measurement period adjustments | — |  |  | — |  |  | (63) |  |  | — |  |  | — |  |  | (63) |  |  | 75 |  |  | 12 |
Distributions to non-controlling interests | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (22) |  |  | (22) |
Stock-based compensation and other | — |  |  | — |  |  | 8 |  |  | — |  |  | — |  |  | 8 |  |  | — |  |  | 8 |
Balance at March 28, 2025 | 243 |  |  | $ | 2 |  |  | $ | 4,907 |  |  | $ | (511) |  |  | $ | 29 |  |  | $ | 4,427 |  |  | $ | 152 |  |  | $ | 4,579 |

See notes to unaudited condensed consolidated financial statements
7

AMENTUM HOLDINGS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(UNAUDITED)
(in millions)

| Six Months Ended
| April 3, 2026 |  | March 28, 2025 |  |
Cash flows from operating activities |  |  |  |  |
Net income including non-controlling interests | $ | 98 |  |  | $ | 23 |  |  |
Adjustments to reconcile net income including non-controlling interests to net cash provided by operating activities: |  |  |  |  |
Depreciation | 18 |  |  | 18 |  |  |
Amortization of intangibles | 188 |  |  | 240 |  |  |
Equity earnings of non-consolidated subsidiaries | (45) |  |  | (29) |  |  |
Distributions from equity method investments | 54 |  |  | 35 |  |  |
Deferred income taxes | (2) |  |  | (11) |  |  |
Stock-based compensation | 15 |  |  | 8 |  |  |
Other | 6 |  |  | 10 |  |  |
Changes in assets and liabilities, net of effects of business acquisition: |  |  |  |  |
Accounts receivable, net | 47 |  |  | (127) |  |  |
Prepaid expenses and other assets | 51 |  |  | 71 |  |  |
Accounts payable, contract liabilities, and other current liabilities | (250) |  |  | (11) |  |  |
Accrued compensation and benefits | (88) |  |  | (46) |  |  |
Other long-term liabilities | (3) |  |  | (14) |  |  |
Net cash provided by operating activities | 89 |  |  | 167 |  |  |
Cash flows from investing activities |  |  |  |  |
Divestitures, net of cash conveyed | (8) |  |  | — |  |  |
Payments for property and equipment | (11) |  |  | (12) |  |  |
Contributions to equity method investments | (52) |  |  | (28) |  |  |
Returns of capital from equity method investments | 22 |  |  | 1 |  |  |
Other | (2) |  |  | — |  |  |
Net cash used in investing activities | (51) |  |  | (39) |  |  |
Cash flows from financing activities |  |  |  |  |
Borrowings on revolving credit facilities | 1,986 |  |  | 513 |  |  |
Payments on revolving credit facilities | (1,986) |  |  | (513) |  |  |
Repayments of borrowings under the credit agreement | (19) |  |  | — |  |  |
Distributions to non-controlling interests | (21) |  |  | (22) |  |  |
Other | (4) |  |  | (6) |  |  |
Net cash used in financing activities | (44) |  |  | (28) |  |  |
Effect of exchange rate changes on cash | (3) |  |  | (6) |  |  |
Net change in cash and cash equivalents | (9) |  |  | 94 |  |  |
Cash and cash equivalents, beginning of period | 437 |  |  | 452 |  |  |
Cash and cash equivalents, end of period | $ | 428 |  |  | $ | 546 |  |  |
Supplemental disclosure of cash flow information |  |  |  |  |
Common stock issued for the Transaction | $ | — |  |  | $ | (63) |  |  |
Accrued acquisition working capital settlement | — |  |  | 70 |  |  |
Income taxes paid, net of receipts | (18) |  |  | (40) |  |  |
Interest paid | (130) |  |  | (133) |  |  |

See notes to unaudited condensed consolidated financial statements
8

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 advanced engineering and technology solutions provider to a broad base of U.S. and allied government agencies, and customers in international and 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 repertoire of deep customer knowledge, enabling us to engage our customers across multiple capabilities and markets.
We conduct our business activities and report financial results as two reportable segments: Digital Solutions (“DS”) and Global Engineering Solutions (“GES”). The DS segment provides advanced digital and data-driven solutions including intelligence analytics, space system development, cybersecurity, and next generation IT across the federal government and commercial clients. The GES segment provides large-scale environmental remediation, nuclear power solutions, platform engineering, sustainment and supply chain management across all seven continents for the U.S. government and allied nations.
The accompanying unaudited condensed consolidated financial statements of the Company include the assets, liabilities, results of operations, comprehensive income and cash flows for the Company, including its wholly-owned subsidiaries and joint ventures that are majority-owned or otherwise controlled by the Company. Certain information and note disclosures normally included in the annual financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted, although the Company believes that the disclosures made are adequate to make the information presented not misleading. All intercompany transactions and balances have been eliminated in consolidation.
In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments and reclassifications (all of which are of a normal, recurring nature) that are necessary for the fair presentation of the periods presented. It is suggested that these unaudited condensed consolidated financial statements be read in conjunction with the audited consolidated financial statements and the notes thereto included in the Company’s latest annual report for the fiscal year ended October 3, 2025. The results of operations for the three and six months ended April 3, 2026 are not necessarily indicative of the results to be expected for any subsequent interim period or for the full fiscal year.
Note 2 — Recent Accounting Pronouncements
Accounting Standards Updates Issued but Not Yet Adopted
In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, to enhance transparency and usefulness of income tax disclosures. This update requires disaggregated information about an entity’s effective tax rate reconciliation as well as information on income taxes paid. We plan to adopt ASU 2023-09 using the prospective approach beginning with our annual fiscal year 2026 financial statements.
In November 2024, the FASB issued ASU No. 2024-03, Disaggregation of Income Statement Expenses, to enhance the transparency of certain expense disclosures. The update requires disclosure of specific types of expenses included in certain expense captions presented on the face of the consolidated statements of operations. ASU 2024-03 is effective for fiscal years beginning after December 15, 2026, and for interim reporting periods beginning after December 15, 2027, and may be applied on a prospective or retrospective basis. Early adoption is permitted. We are currently evaluating the impacts of the new standard on our financial statements.
Note 3 — Revenues
Disaggregation of Revenues
The Company disaggregates revenues by customer, contract type, prime contractor versus subcontractor, geographic location and whether the solution provided is primarily Digital Solutions or Global Engineering Solutions. These categories represent how the nature, amount, timing, and uncertainty of revenues and cash flows are affected.
Disaggregated revenues by customer-type were as follows:
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|  | Three Months Ended
|  | April 3, 2026 |  | March 28, 2025
(Amounts in millions) |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total
Department of War and U.S. Intelligence Community |  | $ | 816 |  |  | $ | 1,065 |  |  | $ | 1,881 |  |  | $ | 738 |  |  | $ | 1,070 |  |  | $ | 1,808 |
Other U.S. Government Agencies |  | 421 |  | 485 |  | 906 |  | 405 |  | 585 |  | 990 |
Commercial and International |  | 231 |  | 460 |  | 691 |  |  | 197 |  | 496 |  | 693
Total revenues |  | $ | 1,468 |  |  | $ | 2,010 |  |  | $ | 3,478 |  |  | $ | 1,340 |  |  | $ | 2,151 |  |  | $ | 3,491 |

|  | Six Months Ended
|  | April 3, 2026 |  | March 28, 2025
(Amounts in millions) |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total
Department of War and U.S. Intelligence Community |  | $ | 1,527 |  |  | $ | 2,090 |  |  | $ | 3,617 |  |  | $ | 1,460 |  |  | $ | 2,116 |  |  | $ | 3,576 |
Other U.S. Government Agencies |  | 821 |  |  | 933 |  |  | 1,754 |  |  | 821 |  | 1,185 |  |  | 2,006 |
Commercial and International |  | 457 |  | 887 |  |  | 1,344 |  |  | 345 |  | 980 |  | 1325
Total revenues |  | $ | 2,805 |  |  | $ | 3,910 |  |  | $ | 6,715 |  |  | $ | 2,626 |  |  | $ | 4,281 |  |  | $ | 6,907 |

Disaggregated revenues by contract-type were as follows:

|  | Three Months Ended
|  | April 3, 2026 |  | March 28, 2025
(Amounts in millions) |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total
Cost-plus-fee |  | $ | 883 |  |  | $ | 1,104 |  |  | $ | 1,987 |  |  | $ | 861 |  |  | $ | 1,388 |  |  | $ | 2,249 |
Fixed-price |  | 402 |  | 580 |  | 982 |  | 331 |  | 476 |  | 807 |
Time-and-materials |  | 183 |  | 326 |  | 509 |  |  | 148 |  | 287 |  | 435 |
Total revenues |  | $ | 1,468 |  |  | $ | 2,010 |  |  | $ | 3,478 |  |  | $ | 1,340 |  |  | $ | 2,151 |  |  | $ | 3,491 |

|  | Six Months Ended
|  | April 3, 2026 |  | March 28, 2025
(Amounts in millions) |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total
Cost-plus-fee |  | $ | 1,669 |  |  | $ | 2,163 |  |  | $ | 3,832 |  |  | $ | 1,646 |  |  | $ | 2,769 |  |  | $ | 4,415 |
Fixed-price |  | 782 |  |  | 1,128 |  |  | 1,910 |  |  | 690 |  |  | 948 |  |  | 1,638 |
Time-and-materials |  | 354 |  | 619 |  | 973 |  |  | 290 |  | 564 |  | 854 |
Total revenues |  | $ | 2,805 |  |  | $ | 3,910 |  |  | $ | 6,715 |  |  | $ | 2,626 |  |  | $ | 4,281 |  |  | $ | 6,907 |

Disaggregated revenues by prime contractor versus subcontractor were as follows:

|  | Three Months Ended
|  | April 3, 2026 |  | March 28, 2025
(Amounts in millions) |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total
Prime contractor |  | $ | 1,381 |  |  | $ | 1,762 |  |  | $ | 3,143 |  |  | $ | 1,215 |  |  | $ | 1,885 |  |  | $ | 3,100 |
Subcontractor |  | 87 |  |  | 248 |  |  | 335 |  |  | 125 |  | 266 |  | 391 |
Total revenues |  | $ | 1,468 |  |  | $ | 2,010 |  |  | $ | 3,478 |  |  | $ | 1,340 |  |  | $ | 2,151 |  |  | $ | 3,491 |

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|  | Six Months Ended
|  | April 3, 2026 |  | March 28, 2025
(Amounts in millions) |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total
Prime contractor |  | $ | 2,640 |  |  | $ | 3,407 |  |  | $ | 6,047 |  |  | $ | 2,379 |  |  | $ | 3,763 |  |  | $ | 6,142 |
Subcontractor |  | 165 |  | 503 |  | 668 |  |  | 247 |  | 518 |  | 765 |
Total revenues |  | $ | 2,805 |  |  | $ | 3,910 |  |  | $ | 6,715 |  |  | $ | 2,626 |  |  | $ | 4,281 |  |  | $ | 6,907 |

Revenues by geographic location are reported by the country in which the work is performed and were as follows:

|  | Three Months Ended
|  | April 3, 2026 |  | March 28, 2025
(Amounts in millions) |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total
United States |  | $ | 1,408 |  |  | $ | 1,300 |  |  | $ | 2,708 |  |  | $ | 1,285 |  |  | $ | 1,300 |  |  | $ | 2,585 |
International |  | 60 |  | 710 |  | 770 |  |  | 55 |  |  | 851 |  |  | 906 |
Total revenues |  | $ | 1,468 |  |  | $ | 2,010 |  |  | $ | 3,478 |  |  | $ | 1,340 |  |  | $ | 2,151 |  |  | $ | 3,491 |

|  | Six Months Ended
|  | April 3, 2026 |  | March 28, 2025
(Amounts in millions) |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total
United States |  | $ | 2,692 |  |  | $ | 2,506 |  |  | $ | 5,198 |  |  | $ | 2,507 |  |  | $ | 2,563 |  |  | $ | 5,070 |
International |  | 113 |  | 1,404 |  |  | 1,517 |  |  | 119 |  |  | 1,718 |  |  | 1,837 |
Total revenues |  | $ | 2,805 |  |  | $ | 3,910 |  |  | $ | 6,715 |  |  | $ | 2,626 |  |  | $ | 4,281 |  |  | $ | 6,907 |

Changes in Estimates on Contracts
Changes in estimated contract earnings at completion using the cumulative catch-up method of accounting were recognized in revenues as follows:

| Three Months Ended |  | Six Months Ended
(Amounts in millions) | April 3, 2026 |  | March 28, 2025 |  | April 3, 2026 |  | March 28, 2025
Favorable earnings at completion adjustments | $ | 72 |  |  | $ | 48 |  |  | $ | 119 |  |  | $ | 68 |
Unfavorable earnings at completion adjustments | (50) |  |  | (27) |  |  | (74) |  |  | (40) |
Net favorable adjustments | $ | 22 |  |  | $ | 21 |  |  | $ | 45 |  |  | $ | 28 |
Impact on diluted earnings per share attributable to common shareholders (1) | $ | 0.07 |  |  | $ | 0.07 |  |  | $ | 0.15 |  |  | $ | 0.09 |

(1) The impact on diluted earnings per share attributable to common shareholders is calculated using our statutory tax rate.
Remaining Performance Obligations
As of April 3, 2026, we had a remaining performance obligations balance of $10.1 billion and expect to recognize approximately 78% and 92% of the remaining performance obligations balance as revenues over the next 12 and 24 months, respectively, with the remainder to be recognized thereafter.
Note 4 — Contract Balances
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The Company's contract balances consisted of the following (in millions):

|  |  |  | As of
Description of Contract Related Balance |  | Classification |  | April 3, 2026 |  | October 3, 2025
Billed and billable receivables |  | Accounts receivable, net |  | $ | 1,439 |  |  | $ | 1,514 |
Contract assets |  | Accounts receivable, net |  | 999 |  |  | 902 |
Related party receivables |  | Accounts receivable, net |  | 58 |  |  | 63 |
Long-term contract assets |  | Other long-term assets |  | — |  |  | 90 |
Related party contract liabilities - deferred revenues and other contract liabilities |  | Contract liabilities |  | (11) |  |  | (15) |
Contract liabilities - deferred revenues and other contract liabilities |  | Contract liabilities |  | (169) |  |  | (212) |

Contract assets primarily relate to accruals for reimbursable costs and fees in which our right to consideration is conditional. Amounts related to a prior acquisition previously classified as long-term contract assets as of October 3, 2025 are presented as contract assets as of April 3, 2026.
During the three and six months ended April 3, 2026, we recognized revenues of $21 million and $148 million, respectively, compared with $8 million and $73 million of revenues during the three and six months ended March 28, 2025, respectively, that was included in Contract liabilities as of October 3, 2025 and September 27, 2024, respectively.
Note 5 — Sales of Receivables
In March 2024, we entered into a Master Accounts Receivable Purchase Agreement (“MARPA”) with MUFG Bank, Ltd., (the “Purchaser”) for the sale of certain designated eligible U.S. Government receivables. In December 2024, we amended the MARPA with the Purchaser to increase the maximum amount of eligible receivables that can be sold up to a maximum amount of $400 million. In March 2026, we amended the MARPA with the Purchaser to include the sale of certain eligible receivables and to make certain other confirming modifications. Under the MARPA, the Company can sell certain eligible receivables without recourse for any U.S. Government credit risk.
The Company's MARPA activity consisted of the following (in millions):

| As of and for the Six Months Ended
| April 3, 2026 |  | March 28, 2025
Beginning balance: | $ | 180 |  |  | $ | 177 |
Sales of receivables | 1,960 |  |  | 1,955 |
Cash collections | (1,889) |  |  | (1,912) |
Outstanding balance sold to Purchaser (1) | 251 |  |  | 220 |
Cash collected, not remitted to Purchaser (2) | (51) |  |  | (44) |
Remaining sold receivables | $ | 200 |  |  | $ | 176 |

(1) For the six months ended April 3, 2026 and March 28, 2025, the Company recorded a net cash inflow of $71 million and $43 million in its cash flows from operating activities, respectively, from sold receivables. MARPA cash flows are calculated as the change in the outstanding balance during the fiscal year.
(2) Includes the cash collected on behalf of but not yet remitted to the Purchaser as of April 3, 2026 and March 28, 2025. This balance is included in Other current liabilities as of the balance sheet date.
Note 6 — Goodwill and Intangible Assets
Goodwill
The table below presents changes in the carrying amount of goodwill by reportable segment for the periods presented:

(Amounts in millions) | DS |  | GES |  | Total
Balance as of October 3, 2025 | $ | 2,260 |  |  | $ | 3,443 |  |  | $ | 5,703 |
Foreign currency translation | — |  |  | (5) |  |  | (5) |
Balance as of April 3, 2026 | $ | 2,260 |  |  | $ | 3,438 |  |  | $ | 5,698 |

Intangible Assets
Intangible assets, net consisted of the following:
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| April 3, 2026 |  | October 3, 2025
(Amounts in millions) | Gross Carrying Value |  | Accumulated Amortization |  | Net |  | Gross Carrying Value |  | Accumulated Amortization |  | Net
Backlog | $ | 661 |  |  | $ | (600) |  |  | $ | 61 |  |  | $ | 661 |  |  | $ | (586) |  |  | $ | 75 |
Customer relationship intangible assets | 2,587 |  |  | (893) |  |  | 1,694 |  |  | 2,587 |  |  | (721) |  |  | 1,866 |
Capitalized software | 29 |  |  | (15) |  |  | 14 |  |  | 27 |  |  | (13) |  |  | 14 |
Total intangible assets, net | $ | 3,277 |  |  | $ | (1,508) |  |  | $ | 1,769 |  |  | $ | 3,275 |  |  | $ | (1,320) |  |  | $ | 1,955 |

Amortization expense was $94 million and $188 million for the three and six months ended April 3, 2026, respectively, and $120 million and $240 million for the three and six months ended March 28, 2025, respectively.
Note 7 — Income Taxes
The Company's effective tax rate was 30.8% and 31.0% for the three and six months ended April 3, 2026, respectively, and 91.7% and 66.7% for the three and six months ended March 28, 2025, respectively.
The most significant item contributing to the difference between the statutory U.S. federal corporate tax rate of 21.0% and the Company’s effective tax rate for the three and six months ended April 3, 2026 and March 28, 2025 was an increase in the valuation allowance against the deferred tax asset related to disallowed interest expense of $5 million and $9 million, respectively, for the three and six months ended April 3, 2026, and $17 million and $28 million, respectively, for the three and six months ended March 28, 2025.
On July 4, 2025, the One Big, Beautiful Bill Act (“OBBBA”) was enacted, introducing several significant amendments to U.S. income tax legislation including the permanent restoration of EBITDA as the basis for computing business interest expense limitations and the immediate expensing of research expenditures. The legislation has multiple effective dates, with certain provisions effective in 2025 and others implemented through 2027. We have incorporated these amendments into our fiscal year 2025 and 2026 income tax provisions, as applicable, which impacted the realizability of our deferred tax assets and valuation allowance assessment.
Note 8 — Debt
Debt consisted of the following:

| As of
(Amounts in millions) | April 3, 2026 |  | October 3, 2025
Term Loan | $ | 2,981 |  |  | $ | 3,000 |
Senior notes | 1,000 |  |  | 1,000 |
Other | 7 |  |  | 8 |
Total debt | 3,988 |  |  | 4,008 |
Unamortized original issue discount and unamortized deferred financing costs | (61) |  |  | (65) |
Total debt, net of original issue discount and deferred financing costs | 3,927 |  |  | 3,943 |
Less current portion of long-term debt | (40) |  |  | (42) |
Total long-term debt, net of current portion | $ | 3,887 |  |  | $ | 3,901 |

As amended, the Company’s senior secured credit facility (the “Credit Facility”) consisted of our term facility (“Term Loan”) maturing on September 27, 2031 and a $850 million revolving facility (“Revolver”) maturing on September 27, 2029, which included a $200 million letter of credit subfacility and a $100 million swingline subfacility. The interest rates applicable to the Term Loan were floating interest rates equal to an Alternate Base Rate (“ABR”) or Adjusted Term Secured Overnight Financing Rate (“Term SOFR”) plus an applicable margin based upon net leverage ratio. The Term Loan required quarterly principal amortization payments of $9 million, which commenced on March 31, 2025, with the remainder of the principal thereunder being due at maturity. As of April 3, 2026 and October 3, 2025, the available borrowing capacity under the Credit Facility was $769 million and $766 million, respectively, and included $81 million and $84 million, respectively, in issued letters of credit. As of April 3, 2026 and October 3, 2025, there were no amounts borrowed under the Revolver.
In August 2024, the Company completed an offering of $1,000 million in aggregate principal amount of 7.250% senior notes due August 1, 2032 (the “Senior Notes”). Interest is payable on February 1 and August 1 of each year, which commenced on February 1, 2025.
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The Credit Facility and the Senior Notes are guaranteed by substantially all of our wholly owned material domestic restricted subsidiaries, subject to customary exceptions set forth in the credit agreement and indenture, respectively.
Each of the credit agreement and indenture requires us to comply with certain representations and warranties, customary affirmative and negative covenants and, in the case of the Revolver, under certain circumstances, a financial covenant. We were in compliance with all covenants as of April 3, 2026.
Cash Flow Hedges
The Company utilizes derivative financial instruments to manage interest rate risk related to its variable rate debt. The Company’s objective is to manage its exposure to interest rate movements and reduce volatility of interest expense. The Company entered into several interest rate swaps with an aggregate notional value of $1.5 billion that were designated as cash flow hedges, in which the Company will pay at the fixed rate and receive payment at a floating rate indexed to the three-month term SOFR through maturity. The swaps mature at various dates through January 31, 2027. The change in fair value of the interest rate swaps is presented within accumulated other comprehensive income on our consolidated balance sheet and subsequently reclassified into interest expense and other, net on our consolidated statements of operations and comprehensive income in the period when the hedged transaction affects earnings.
Note 9 — Joint Ventures
The Company’s joint ventures provide services to customers including program management and operations and maintenance services. Joint ventures, the combination of two or more partners, are generally formed for a specific project. Management of the joint venture is typically controlled by a joint venture executive committee, comprised of representatives from the joint venture partners. The joint venture executive committee normally provides management oversight and controls decisions which could have a significant impact on the joint venture.
We account for joint ventures in accordance with ASC 810, Consolidation. The Company analyzes its joint ventures and classifies them as either:
•a Variable Interest Entity (“VIE”) that must be consolidated because the Company is the primary beneficiary or the joint venture is not a VIE and the Company holds the majority voting interest with no significant participative rights available to the other partners; or
•a VIE that does not require consolidation and is treated as an equity method investment because the Company is not the primary beneficiary or the joint venture is not a VIE and the Company does not hold the majority voting interest.
The following table presents selected financial information for our consolidated joint ventures that are VIEs as of April 3, 2026 and October 3, 2025:

| As of
(Amounts in millions) | April 3, 2026 |  | October 3, 2025
Cash and cash equivalents | $ | 116 |  |  | $ | 167 |
Current assets | 183 |  |  | 191 |
Non-current assets | — |  |  | — |
Total assets | $ | 299 |  |  | $ | 358 |
Current liabilities | $ | 105 |  |  | $ | 146 |
Non-current liabilities | — |  |  | — |
Total liabilities | 105 |  |  | 146 |
Total Amentum equity | 111 |  |  | 153 |
Non-controlling interests | 83 |  |  | 59 |
Total equity | 194 |  |  | 212 |
Total liabilities and equity | $ | 299 |  |  | $ | 358 |

The following table presents selected financial information for our consolidated joint ventures that are VIEs for the three and six months ended April 3, 2026 and March 28, 2025:
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| Three Months Ended |  | Six Months Ended
(Amounts in millions) | April 3, 2026 |  | March 28, 2025 |  | April 3, 2026 |  | March 28, 2025
Revenues | $ | 272 |  |  | $ | 367 |  |  | $ | 521 |  |  | $ | 743 |
Cost of revenues | (247) |  |  | (331) |  |  | (469) |  |  | (667) |
Net income including non-controlling interests | 27 |  |  | 36 |  |  | 50 |  |  | 75 |

The Company has an ownership share, generally ranging from 25% to 50%, in approximately 30 active joint ventures that were determined to be VIEs and are accounted for as equity method investments. Related party receivables due from our equity method investments were $58 million and $63 million as of April 3, 2026 and October 3, 2025, respectively. These receivables are a result of items purchased and services rendered by us on behalf of our equity method investments. We have assessed these receivables as having minimal collection risk based on our historic experience with these joint ventures and our inherent influence through our ownership interest. The related party revenues earned from our equity method investments was $65 million and $115 million for the three and six months ended April 3, 2026, respectively, and $45 million and $89 million for the three and six months ended March 28, 2025, respectively.
Many of our joint ventures only perform on a single contract. The modification or termination of a contract under a joint venture could trigger an impairment in the fair value of our investment in these entities. In the aggregate, our maximum exposure to losses was $216 million related to our equity method investments as of April 3, 2026.
Note 10 — Accumulated Other Comprehensive Income (Loss)
The accumulated balances and reporting period activities for the three and six months ended April 3, 2026 and March 28, 2025 related to accumulated other comprehensive income (loss) are summarized as follows:

|  | Gain (Loss) on Derivative Instruments |  | Foreign Currency Translation Adjustments |  | Pension Related Adjustments |  | Income Tax (Provision) Benefit Related to Items of Other Comprehensive Income (Loss) |  | Accumulated Other Comprehensive Income (Loss)
(Amounts in millions) |  |  |  |  |
Balance at January 2, 2026 |  | $ | (7) |  |  | $ | 5 |  |  | $ | 57 |  |  | $ | (15) |  |  | $ | 40 |
Other comprehensive income (loss) before reclassification |  | 3 |  |  | (7) |  |  | — |  |  | (1) |  |  | (5) |
Amounts reclassified from accumulated other comprehensive income (loss) |  | 1 |  |  | — |  |  | (1) |  |  | — |  |  | — |
Balance at April 3, 2026 |  | $ | (3) |  |  | $ | (2) |  |  | $ | 56 |  |  | $ | (16) |  |  | $ | 35 |

|  | Loss on Derivative Instruments |  | Foreign Currency Translation Adjustments |  | Pension Related Adjustments |  | Income Tax (Provision) Benefit Related to Items of Other Comprehensive Income (Loss) |  | Accumulated Other Comprehensive Income (Loss)
(Amounts in millions) |  |  |  |  |
Balance at December 27, 2024 |  | $ | — |  |  | $ | (15) |  |  | $ | 55 |  |  | $ | (17) |  |  | $ | 23 |
Other comprehensive (loss) income before reclassification |  | (6) |  |  | 11 |  |  | — |  |  | 2 |  |  | 7 |
Amounts reclassified from accumulated other comprehensive loss |  | (1) |  |  | — |  |  | — |  |  | — |  |  | (1) |
Balance at March 28, 2025 |  | $ | (7) |  |  | $ | (4) |  |  | $ | 55 |  |  | $ | (15) |  |  | $ | 29 |

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|  | Gain (Loss) on Derivative Instruments |  | Foreign Currency Translation Adjustments |  | Pension Related Adjustments |  | Income Tax (Provision) Benefit Related to Items of Other Comprehensive Income (Loss) |  | Accumulated Other Comprehensive Income (Loss)
(Amounts in millions) |  |  |  |  |
Balance at October 3, 2025 |  | $ | (8) |  |  | $ | 6 |  |  | $ | 57 |  |  | $ | (15) |  |  | $ | 40 |
Other comprehensive income (loss) before reclassification |  | 4 |  |  | (8) |  |  | — |  |  | (1) |  |  | (5) |
Amounts reclassified from accumulated other comprehensive income (loss) |  | 1 |  |  | — |  |  | (1) |  |  | — |  |  | — |
Balance at April 3, 2026 |  | $ | (3) |  |  | $ | (2) |  |  | $ | 56 |  |  | $ | (16) |  |  | $ | 35 |

|  | Gain (Loss) on Derivative Instruments |  | Foreign Currency Translation Adjustments |  | Pension Related Adjustments |  | Income Tax Provision Related to Items of Other Comprehensive Income (Loss) |  | Accumulated Other Comprehensive Income (Loss)
(Amounts in millions) |  |  |  |  |
Balance at September 27, 2024 |  | $ | (22) |  |  | $ | 3 |  |  | $ | 55 |  |  | $ | (13) |  |  | $ | 23 |
Other comprehensive income (loss) before reclassification |  | 19 |  |  | (7) |  |  | — |  |  | (2) |  |  | 10 |
Amounts reclassified from accumulated other comprehensive loss |  | (4) |  |  | — |  |  | — |  |  | — |  |  | (4) |
Balance at March 28, 2025 |  | $ | (7) |  |  | $ | (4) |  |  | $ | 55 |  |  | $ | (15) |  |  | $ | 29 |

Note 11 — Segment Information
We operate our business activities and report financial results as two reportable segments: Digital Solutions and Global Engineering Solutions.
The Digital Solutions segment provides advanced digital and data-driven solutions including intelligence analytics, space system development, cybersecurity, and next generation IT across the federal government and commercial clients.
The Global Engineering Solutions segment provides large-scale environmental remediation, nuclear power solutions, platform engineering, sustainment and supply chain management across all seven continents for the U.S. government and allied nations.
The presentation of financial results as two reportable segments is consistent with the way the Company operates its business and the manner in which our chief operating decision maker (“CODM”), currently our Chief Executive Officer, manages the operations of the Company for purposes of allocating resources and assessing performance. The CODM evaluates the performance of our segments based on revenues and Adjusted EBITDA.
The Company’s segment revenues were as follows:

| Three Months Ended |  | Six Months Ended
(Amounts in millions) | April 3, 2026 |  | March 28, 2025 |  | April 3, 2026 |  | March 28, 2025
DS | $ | 1,468 |  |  | $ | 1,340 |  |  | $ | 2,805 |  |  | $ | 2,626 |
GES | 2,010 |  |  | 2,151 |  |  | 3,910 |  |  | 4,281 |
Total | $ | 3,478 |  |  | $ | 3,491 |  |  | $ | 6,715 |  |  | $ | 6,907 |

Adjusted EBITDA is most comparable to net income attributable to common shareholders prepared based on GAAP. The Company defines Adjusted EBITDA as net income attributable to common shareholders adjusted for interest expense and other, net, provision for income taxes, depreciation and amortization, and certain discrete items that are not considered in the evaluation of ongoing operating performance. These discrete items include acquisition, transaction, and integration costs, utilization of certain fair market value adjustments assigned in purchase accounting, and stock-based compensation. While we believe Adjusted EBITDA is a useful metric in evaluating operating performance by allowing better evaluation of underlying segment performance and better period-to-period comparability, it is not a metric defined by GAAP and may not be comparable to non-GAAP metrics presented by other companies.
The following table reconciles segment Adjusted EBITDA to net income attributable to common shareholders:
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| Three months ended |  | Six months ended
| April 3, 2026 |  | March 28, 2025 |  | April 3, 2026 |  | March 28, 2025
(Amounts in millions) | DS |  | GES |  | Total |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total
Revenues | $ | 1,468 |  |  | $ | 2,010 |  |  | $ | 3,478 |  |  | $ | 1,340 |  |  | $ | 2,151 |  |  | $ | 3,491 |  |  | $ | 2,805 |  |  | $ | 3,910 |  |  | $ | 6,715 |  |  | $ | 2,626 |  |  | $ | 4,281 |  |  | $ | 6,907 |
Cost of revenues | (1,316) |  |  | (1,817) |  |  | (3,133) |  |  | (1,177) |  |  | (1,947) |  |  | (3,124) |  |  | (2,501) |  |  | (3,543) |  |  | (6,044) |  |  | (2,314) |  |  | (3,865) |  |  | (6,179) |
Other segment expenses (1) | (47) |  |  | (23) |  |  | (70) |  |  | (56) |  |  | (43) |  |  | (99) |  |  | (96) |  |  | (37) |  |  | (133) |  |  | (105) |  |  | (93) |  |  | (198) |
Adjusted EBITDA attributable to Amentum Holdings, Inc. | 105 |  |  | 170 |  |  | 275 |  |  | 107 |  |  | 161 |  |  | 268 |  |  | 208 |  |  | 330 |  |  | 538 |  |  | 207 |  |  | 323 |  |  | 530 |
Depreciation |  |  |  |  | (6) |  |  |  |  |  |  | (9) |  |  |  |  |  |  | (18) |  |  |  |  |  |  | (18) |
Amortization of intangibles |  |  |  |  | (94) |  |  |  |  |  |  | (120) |  |  |  |  |  |  | (188) |  |  |  |  |  |  | (240) |
Interest expense and other, net |  |  |  |  | (73) |  |  |  |  |  |  | (86) |  |  |  |  |  |  | (147) |  |  |  |  |  |  | (173) |
Non-controlling interests |  |  |  |  | — |  |  |  |  |  |  | (2) |  |  |  |  |  |  | — |  |  |  |  |  |  | 7 |
Acquisition, transaction and integration costs (2) |  |  |  |  | (16) |  |  |  |  |  |  | (21) |  |  |  |  |  |  | (27) |  |  |  |  |  |  | (30) |
Utilization of fair market value adjustments (3) |  |  |  |  | — |  |  |  |  |  |  | (1) |  |  |  |  |  |  | (1) |  |  |  |  |  |  | 1 |
Stock-based compensation (4) |  |  |  |  | (8) |  |  |  |  |  |  | (5) |  |  |  |  |  |  | (15) |  |  |  |  |  |  | (8) |
Income before income taxes |  |  |  |  | 78 |  |  |  |  |  |  | 24 |  |  |  |  |  |  | 142 |  |  |  |  |  |  | 69 |
Provision for income taxes |  |  |  |  | (24) |  |  |  |  |  |  | (22) |  |  |  |  |  |  | (44) |  |  |  |  |  |  | (46) |
Net income including non-controlling interests |  |  |  |  | 54 |  |  |  |  |  |  | 2 |  |  |  |  |  |  | 98 |  |  |  |  |  |  | 23 |
Net income attributable to non-controlling interests |  |  |  |  | — |  |  |  |  |  |  | 2 |  |  |  |  |  |  | — |  |  |  |  |  |  | (7) |
Net income attributable to common shareholders |  |  |  |  | $ | 54 |  |  |  |  |  |  | $ | 4 |  |  |  |  |  |  | $ | 98 |  |  |  |  |  |  | $ | 16 |

(1) Represents the difference between segment revenues, costs of revenues, and Adjusted EBITDA attributable to Amentum Holdings, Inc. Other segment expenses primarily includes selling, general, and administrative expenses, and equity earnings of non-consolidated subsidiaries and excludes certain discrete items that are not considered in the evaluation of ongoing performance.
(2) Represents acquisition, transaction and integration costs, including severance, retention, and other adjustments related to acquisition and integration activities.
(3) Represents the periodic utilization of the fair market value adjustments assigned to certain equity method investments and non-controlling interests based on the remaining period of performance for the related contract.
(4) Represents non-cash compensation expenses recognized for stock-based arrangements.
Asset information by segment is not a key measure of performance used by the CODM.
Note 12 — Earnings Per Share
Basic and diluted earnings per share are computed as follows (in millions, except per share data):

| Three Months Ended |  | Six Months Ended |  |
| April 3, 2026 |  | March 28, 2025 |  | April 3, 2026 |  | March 28, 2025 |  |
Net income attributable to common shareholders | $ | 54 |  |  | $ | 4 |  |  | $ | 98 |  |  | $ | 16 |  |  |
Weighted-average number of basic shares outstanding during the period | 244 |  | 243 |  | 244 |  | 243 |  |
Dilutive effect of equity awards | 1 |  | — |  |  | 1 |  | — |  |  |
Weighted-average number of diluted shares outstanding during the period | 245 |  | 243 |  | 245 |  | 243 |  |
Basic earnings per share | $ | 0.22 |  |  | $ | 0.02 |  |  | $ | 0.40 |  |  | $ | 0.07 |  |  |
Diluted earnings per share | $ | 0.22 |  |  | $ | 0.02 |  |  | $ | 0.40 |  |  | $ | 0.07 |  |  |

Note 13 — Legal Proceedings and Commitments and Contingencies
The Company is involved in various claims, disputes and administrative proceedings arising in the normal course of business. Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when it is probable that an unfavorable result and/or liability will be incurred and the cost of the unfavorable result or liability can be reasonably estimated. Management is of the opinion that any liability or loss associated with such matters, either individually or in the aggregate, will not have a material adverse effect on the Company’s operations and liquidity.
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Payments to the Company on cost-plus-fee contracts are provisional and are subject to adjustments upon audit by the Defense Contract Audit Agency (“DCAA”). In management’s opinion, audit adjustments that may result from audits not yet completed or started are not expected to have a material adverse effect on the Company’s operations and liquidity.
U.S. Government Investigations
We primarily sell our services to the U.S. Government. These contracts are subject to extensive legal and regulatory requirements, and we are occasionally the subject of investigations by various agencies of the U.S. Government who investigate whether our operations are being conducted in accordance with these requirements. Such investigations could result in administrative, civil or criminal liabilities, including repayments, fines or penalties being imposed on us, or could lead to suspension or debarment from future U.S. Government contracting. U.S. Government investigations often take years to complete and may result in adverse action against us. Any adverse actions arising from such matters could have a material effect on our ability to invoice and receive timely payment on our contracts, perform contracts or compete for contracts with the U.S. Government and could have a material effect on our operating performance. There are currently no investigations that are expected to have a material impact on our results of operations.
Note 14 — Subsequent Events
First Amendment to the Credit Agreement
On April 24, 2026, we entered into the first amendment to the Credit Facility. The amendment established a new $1,400 million senior secured term loan A facility (“Term Loan A”) due April 2031, amended the existing Term Loan, including a reduction in outstanding principal and revised terms, into a new $1,591 million senior secured term loan B facility (“Term Loan B”) due September 2031 and increased the Revolver by $150 million.
Both Term Loan A and Term Loan B require quarterly principal amortization payments. The Term Loan A interest rate per annum is, at our option, equal to either the ABR plus an interest rate margin of 0.25% to 1.00% or the Term SOFR plus an interest rate margin of 1.25% to 2.00% based on our first lien leverage ratio. The Term Loan B interest rate per annum is, at our option, equal to either the ABR plus a 0.75% interest rate margin or the Term SOFR plus a 1.75% interest rate margin.
The Revolver interest rate per annum is, at our option, equal to either the ABR or Canadian Prime Rate plus an interest rate margin of 0.25% to 1.00% or the Term SOFR, Daily Simple SOFR, EURIBOR, Daily Simple Sterling Overnight Index Average (“SONIA”) or Term Canadian Overnight Report Rate Average (“CORRA”) plus an interest rate margin of 1.25% to 2.00% based on our first lien leverage ratio.
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations
The following discussion and analysis of our unaudited condensed consolidated financial condition and results of operations should be read in conjunction with the Amentum Holdings, Inc. unaudited condensed consolidated financial statements, and the notes thereto, and other data contained elsewhere in this Quarterly Report on Form 10-Q. The following discussion and analysis should also be read in conjunction with our audited consolidated financial statements, and notes thereto, and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in our Annual Report on Form 10-K for the year ended October 3, 2025. In addition, please see “Information Relating to Forward-Looking Statements” and “Item 1A. Risk Factors” within our Annual Report on Form 10-K for a discussion of the risks, uncertainties and assumptions associated with these statements.
References to “Amentum”, the “Company”, “we”, “our” or “us” refer to Amentum Holdings, Inc. and its subsidiaries unless otherwise stated or indicated by context.
Overview
We are a global advanced engineering and technology solutions provider to a broad base of U.S. and allied government agencies, and customers in international and 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 repertoire of deep customer knowledge, enabling us to engage our customers across multiple capabilities and markets. Underpinned by a strong culture of ethics and safety, Amentum is committed to operational excellence and successful execution.
We conduct our business activities and report financial results as two reportable segments: Digital Solutions (“DS”) and Global Engineering Solutions (“GES”). The DS segment provides advanced digital and data-driven solutions including intelligence analytics, space system development, cybersecurity, and next generation IT across the federal government and commercial clients. The GES segment provides large-scale environmental remediation, nuclear power solutions, platform engineering, sustainment and supply chain management across all seven continents for the U.S. government and allied nations. The
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presentation of financial results as two reportable segments is consistent with the way the Company operates its business and the manner in which our chief operating decision maker (“CODM”), currently our Chief Executive Officer, manages the operations of the Company for purposes of allocating resources and assessing performance.
Budgetary and Regulatory Environment
In fiscal year 2025, we generated approximately 81% of our revenues from contracts with the U.S. federal government, either as a prime contractor or a subcontractor to other contractors engaged in work for the U.S. federal government. We carefully follow the U.S. federal budget, legislative and contracting trends and activities and evolve our strategies accordingly.
Following a government shutdown from October 2, 2025 to November 12, 2025 and a partial government shutdown from January 31, 2026 to February 3, 2026, final appropriations legislation for the U.S. federal government fiscal year (“GFY”) 2026 was passed on February 3, 2026, excluding the Department of Homeland Security which was shutdown on February 14, 2026, following the expiration of a continuing resolution (“CR”). On April 30, 2026, GFY 2026 funding for the Department of Homeland Security was passed, ending the partial shutdown. The final bill provided $900 billion for defense discretionary spending and $700 billion for non-defense discretionary spending. In April 2026, the GFY 2027 budget request was submitted to Congress, which, as compared to GFY 2026 enacted levels, would increase defense discretionary spending by $250 billion to $1.15 trillion and reduce non-defense discretionary spending by $25 billion to $675 billion. Additionally, the budget request assumes an increase in defense spending based on the defense reconciliation legislation currently pending in Congress, which would result in total GFY 2027 defense spending of $1.5 trillion, an increase of 43% from the GFY 2026 enacted level. While we view the budget environment as constructive and believe core funding sources for our primary customer-based markets will continue to experience bipartisan tailwinds, there can be no certainty about the level of funding for any particular GFY or that appropriations bills will be passed in a timely manner. During those periods of time when appropriations bills have not been passed and signed into law, government agencies operate under a CR, a temporary measure allowing the government to continue operations at prior year funding levels. Depending on their scope, duration, and other factors, CRs can negatively impact our business due to delays in new program starts, delays in contract awards decisions, and other factors.
We continue to monitor the actions of the administration which could result in a change to budgetary priorities or impact federal government procurement timing. Although a limited number of our contracts for the U.S. Government have been affected by changes in budgetary priorities by the administration, the impact has not been material to date. Decreases in, or delays in approving, the federal government’s budget, decreases in government spending on the types of programs that we support, delays in government contract awards, and pauses on government contracts on which we are currently performing could have an adverse impact on our business.
For a discussion of risks, see Part II. Item 1A. Risk Factors in this Report and Part I. Item 1A. Risk Factors in our Fiscal Year 2025 Form 10-K.
Market Environment
We believe our scale, breadth of capabilities, and depth of experience give us a robust understanding of our customers’ evolving needs. Given our portfolio diversity, we believe our total addressable market, and associated growth rate, is sufficient to support our strategic growth plans.
We believe Amentum’s capabilities are strategically aligned to well-funded, long-term priorities for the federal government, allied nations, and commercial customers. Specifically, we believe we are well positioned to continue to win new business driven by the following trends in our addressable market:
•Increasing demand for outsourced services and solutions with federal government customers;
•Increased global demand for reliable power sources and nuclear energy;
•Increased spending on government-wide modernization priorities;
•Increasing government focus on near-peer competitors and other nation state threats;
•Increasing discretionary spending for homeland security and regional activities in the Western hemisphere;
•Increasing discretionary spending for Indo-Pacific regional activities and initiatives;
•Increasing discretionary spending to improve the readiness of the defense industrial base; and
•Increased investment in advanced technologies (e.g., hypersonics, microelectronics, unmanned, electromagnetic spectrum).
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Results of Operations for the Three Months Ended April 3, 2026 and March 28, 2025
The following table presents our results of operations for the periods presented:

| Three Months Ended |  |  |  |  |  |  |  |
| April 3, 2026 |  |  |  | March 28, 2025 |  |  |  | Change |  |  |  |  |  |
(Dollars in millions) | Dollars |  |  |  | Dollars |  |  |  | Dollars |  | Percent |  |  |  |  |  |  |
Revenues | $ | 3,478 |  |  |  |  | $ | 3,491 |  |  |  |  | $ | (13) |  |  | (0.4) | % |  |  |  |  |  |  |  |
Cost of revenues | (3,133) |  |  |  |  | (3,124) |  |  |  |  | (9) |  |  | 0.3 |  |  |  |  |  |  |  |  |
Selling, general, and administrative expenses | (124) |  |  |  |  | (145) |  |  |  |  | 21 |  |  | (14.5) |  |  |  |  |  |  |  |  |
Amortization of intangibles | (94) |  |  |  |  | (120) |  |  |  |  | 26 |  |  | (21.7) |  |  |  |  |  |  |  |  |
Equity earnings of non-consolidated subsidiaries | 24 |  |  |  |  | 8 |  |  |  |  | 16 |  |  | 200.0 |  |  |  |  |  |  |  |  |
Operating income | 151 |  |  |  |  | 110 |  |  |  |  | 41 |  |  | 37.3 |  |  |  |  |  |  |  |  |
Interest expense and other, net | (73) |  |  |  |  | (86) |  |  |  |  | 13 |  |  | (15.1) |  |  |  |  |  |  |  |  |
Income before income taxes | 78 |  |  |  |  | 24 |  |  |  |  | 54 |  |  | 225.0 |  |  |  |  |  |  |  |  |
Provision for income taxes | (24) |  |  |  |  | (22) |  |  |  |  | (2) |  |  | 9.1 |  |  |  |  |  |  |  |  |
Net income including non-controlling interests | 54 |  |  |  |  | 2 |  |  |  |  | 52 |  |  | 2,600.0 |  |  |  |  |  |  |  |  |
Less: net income attributable to non-controlling interests | — |  |  |  |  | 2 |  |  |  |  | (2) |  |  | (100.0) |  |  |  |  |  |  |  |  |
Net income attributable to common shareholders | $ | 54 |  |  |  |  | $ | 4 |  |  |  |  | $ | 50 |  |  | 1,250.0 |  |  |  |  |  |  |  |  |

Revenues — The decrease in revenues was primarily attributable to the transition of certain contracts from consolidated to unconsolidated joint ventures and fiscal year 2025 divestitures partially offset by the net impact of the expected ramp-down of historical programs and the ramp up of new contract awards and growth on existing programs.
Cost of revenues — The increase in cost of revenues was primarily attributable to the timing of expenses. As a percentage of revenues, cost of revenues was 90.1% for the three months ended April 3, 2026 compared to 89.5% for the three months ended March 28, 2025.
Selling, general, and administrative expenses (“SG&A”) — The decrease in SG&A was primarily attributable to synergies arising from the merger of the Jacobs Solutions Inc. (“Jacobs”) Critical Mission Solutions business and portions of the Jacobs Divergent Solutions business (and, together with the Critical Mission Solutions business, referred to as “CMS”). SG&A as a percentage of revenues decreased to 3.6% for the three months ended April 3, 2026 from 4.2% for the three months ended March 28, 2025 primarily due to the reduction in SG&A discussed above.
Amortization of intangibles — Amortization of intangibles primarily relates to the amortization of our backlog and customer relationship intangible assets, which decreased due to the full amortization of backlog associated with the CMS merger in the prior year.
Equity earnings of non-consolidated subsidiaries — Equity earnings of non-consolidated subsidiaries include our proportionate share of the income from equity method investments partially offset by the utilization of fair market value adjustments assigned to certain equity method investments based on the remaining period of performance for the related contract and increased primarily due to the transition of certain contracts from consolidated to unconsolidated joint ventures.
Interest expense and other, net — The decrease in interest expense and other, net was primarily due to the reduction to our term loan principal balance as compared to the three months ended March 28, 2025.
Provision for income taxes — The effective tax rate for the three months ended April 3, 2026 was 30.8%, as compared to 91.7% for the three months ended March 28, 2025. The change in the effective tax rate was primarily due to the recognition of a valuation allowance against a disallowed interest expense deferred tax asset relative to income before income taxes in the respective period.
Net income attributable to non-controlling interests — Net income attributable to non-controlling interests includes the utilization of fair market value adjustments assigned to certain non-controlling interests based on the remaining period of performance for the related contract partially offset by the minority interests in our consolidated joint ventures that are not wholly-owned and was consistent with the three months ended March 28, 2025.
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Results of Operations for the Six Months Ended April 3, 2026 and March 28, 2025
The following table presents our results of operations for the periods presented:

| Six Months Ended |  |  |  |  |  |  |  |
| April 3, 2026 |  |  |  | March 28, 2025 |  |  |  | Change |  |  |  |  |  |
(Dollars in millions) | Dollars |  |  |  | Dollars |  |  |  | Dollars |  | Percent |  |  |  |  |  |  |
Revenues | $ | 6,715 |  |  |  |  | $ | 6,907 |  |  |  |  | $ | (192) |  |  | (2.8) | % |  |  |  |  |  |  |  |
Cost of revenues | (6,044) |  |  |  |  | (6,179) |  |  |  |  | 135 |  |  | (2.2) |  |  |  |  |  |  |  |  |
Selling, general, and administrative expenses | (239) |  |  |  |  | (275) |  |  |  |  | 36 |  |  | (13.1) |  |  |  |  |  |  |  |  |
Amortization of intangibles | (188) |  |  |  |  | (240) |  |  |  |  | 52 |  |  | (21.7) |  |  |  |  |  |  |  |  |
Equity earnings of non-consolidated subsidiaries | 45 |  |  |  |  | 29 |  |  |  |  | 16 |  |  | 55.2 |  |  |  |  |  |  |  |  |
Operating income | 289 |  |  |  |  | 242 |  |  |  |  | 47 |  |  | 19.4 |  |  |  |  |  |  |  |  |
Interest expense and other, net | (147) |  |  |  |  | (173) |  |  |  |  | 26 |  |  | (15.0) |  |  |  |  |  |  |  |  |
Income before income taxes | 142 |  |  |  |  | 69 |  |  |  |  | 73 |  |  | 105.8 |  |  |  |  |  |  |  |  |
Provision for income taxes | (44) |  |  |  |  | (46) |  |  |  |  | 2 |  |  | (4.3) |  |  |  |  |  |  |  |  |
Net income including non-controlling interests | 98 |  |  |  |  | 23 |  |  |  |  | 75 |  |  | 326.1 |  |  |  |  |  |  |  |  |
Less: net income attributable to non-controlling interests | — |  |  |  |  | (7) |  |  |  |  | 7 |  |  | (100.0) |  |  |  |  |  |  |  |  |
Net income attributable to common shareholders | $ | 98 |  |  |  |  | $ | 16 |  |  |  |  | $ | 82 |  |  | 512.5 |  |  |  |  |  |  |  |  |

Revenues — The decrease in revenues was primarily attributable to the transition of certain contracts from consolidated to unconsolidated joint ventures, impacts from the government shutdown, and fiscal year 2025 divestitures. The reduction in revenues was partially offset by the net impact of the expected ramp-down of historical programs and the ramp up of new contract awards and growth on existing programs.
Cost of revenues — The decrease in cost of revenues was primarily attributable to the decrease in revenues discussed above. As a percentage of revenues, cost of revenues was 90.0% for the six months ended April 3, 2026 compared to 89.5% for the six months ended March 28, 2025.
Selling, general, and administrative expenses (“SG&A”) — The decrease in SG&A was primarily attributable to synergies arising from the CMS merger. SG&A as a percentage of revenues decreased to 3.6% for the six months ended April 3, 2026 from 4.0% for the six months ended March 28, 2025 primarily due to the reduction in SG&A discussed above.
Amortization of intangibles — Amortization of intangibles primarily relates to the amortization of our backlog and customer relationship intangible assets, which decreased due to the full amortization of backlog associated with the CMS merger in the prior year.
Equity earnings of non-consolidated subsidiaries — Equity earnings of non-consolidated subsidiaries include our proportionate share of the income from equity method investments partially offset by the utilization of fair market value adjustments assigned to certain equity method investments based on the remaining period of performance for the related contract and increased primarily due to the transition of certain contracts from consolidated to unconsolidated joint ventures during the six months ended April 3, 2026.
Interest expense and other, net — The decrease in interest expense and other, net was primarily due to the reduction to our term loan principal balance as compared to the six months ended March 28, 2025.
Provision for income taxes — The effective tax rate for the six months ended April 3, 2026 was 31.0%, as compared to 66.7% for the six months ended March 28, 2025. The change in the effective tax rate was primarily due to the recognition of a valuation allowance against a disallowed interest expense deferred tax asset relative to income before income taxes in the respective period.
Net income attributable to non-controlling interests — Net income attributable to non-controlling interests includes the utilization of fair market value adjustments assigned to certain non-controlling interests based on the remaining period of performance for the related contract partially offset by the minority interests in our consolidated joint ventures that are not wholly-owned and decreased due to the completion of certain contracts with follow-on contracts which transitioned to equity method investments.
Segment Results for the Three and Six Months Ended April 3, 2026 and March 28, 2025
The primary financial performance measures we use to manage our reportable segments and monitor results of operations are revenues and Adjusted EBITDA. The following tables present our performance measures by reportable segment:
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Digital Solutions

| Three Months Ended |  | Six Months Ended
| April 3, 2026 |  | March 28, 2025 |  | Change |  | April 3, 2026 |  | March 28, 2025 |  | Change
(Dollars in millions) | Dollars |  | Dollars |  | Dollars |  | Percent |  | Dollars |  | Dollars |  | Dollars |  | Percent
Revenues | $ | 1,468 |  |  | $ | 1,340 |  |  | $ | 128 |  |  | 10 | % |  | $ | 2,805 |  |  | $ | 2,626 |  |  | $ | 179 |  |  | 7 | %
Adjusted EBITDA | 105 |  |  | 107 |  |  | (2) |  |  | (2) | % |  | 208 |  |  | 207 |  |  | 1 |  |  | — | %

The increase in revenues for the three and six months ended April 3, 2026, as compared to the three and six months ended March 28, 2025, was primarily attributable to the ramp up of new contract awards and growth on existing programs and partially offset by the fiscal year 2025 divestiture of Rapid Solutions.
Adjusted EBITDA as a percentage of revenues decreased for the three and six months ended April 3, 2026 due to the divestiture and higher net program write-ups in the prior year quarter, partially offset by the increased revenue volume.
Global Engineering Solutions

| Three Months Ended |  | Six Months Ended
| April 3, 2026 |  | March 28, 2025 |  | Change |  | April 3, 2026 |  | March 28, 2025 |  | Change
(Dollars in millions) | Dollars |  | Dollars |  | Dollars |  | Percent |  | Dollars |  | Dollars |  | Dollars |  | Percent
Revenues | $ | 2,010 |  |  | $ | 2,151 |  |  | $ | (141) |  |  | (7) | % |  | $ | 3,910 |  |  | $ | 4,281 |  |  | $ | (371) |  |  | (9) | %
Adjusted EBITDA | 170 |  |  | 161 |  |  | 9 |  |  | 6 | % |  | 330 |  |  | 323 |  |  | 7 |  |  | 2 | %

The decrease in revenues for the three months ended April 3, 2026, as compared to the three months ended March 28, 2025, was primarily attributable to the transition of certain contracts from consolidated to unconsolidated joint ventures, a fiscal year 2025 divestiture, and the expected ramp-down of historical programs. The reduction in revenues was partially offset by the ramp up of new contract awards and growth on existing programs. The decrease in revenues for the six months ended April 3, 2026, as compared to the six months ended March 28, 2025, was primarily attributable to the factors described above and from the government shutdown in the first quarter of fiscal year 2026.
The increase in Adjusted EBITDA for the three and six months ended April 3, 2026, as compared to the three and six months ended March 28, 2025, was primarily attributable to strong operational performance partially offset by the change in revenues described above.
Revenues by Contract Type
Our earnings and profitability may vary materially depending on changes in the proportionate amount of revenues derived from each type of contract. For a discussion of the types of contracts under which we generate revenues, see “Critical Accounting Policies” below. The following table summarizes revenues by contract type as a percentage of each reportable segment and total Amentum revenues, for the periods presented:

| Three months ended |  | Six months ended
| April 3, 2026 |  | March 28, 2025 |  | April 3, 2026 |  | March 28, 2025
| DS |  | GES |  | Total |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total |  | DS |  | GES |  | Total
Cost-plus-fee | 60 | % |  | 55 | % |  | 57 | % |  | 64 | % |  | 65 | % |  | 64 | % |  | 59 | % |  | 55 | % |  | 57 | % |  | 63 | % |  | 65 | % |  | 64 | %
Fixed-price | 27 | % |  | 29 | % |  | 28 | % |  | 25 | % |  | 22 | % |  | 23 | % |  | 28 | % |  | 29 | % |  | 29 | % |  | 26 | % |  | 22 | % |  | 24 | %
Time-and-materials | 13 | % |  | 16 | % |  | 15 | % |  | 11 | % |  | 13 | % |  | 13 | % |  | 13 | % |  | 16 | % |  | 14 | % |  | 11 | % |  | 13 | % |  | 12 | %
Total revenues | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |  | 100 | %

Backlog
The Company's backlog represents the estimated amount of future revenues to be recognized under negotiated contracts. The Company’s backlog includes unexercised option years and excludes the value of task orders that may be awarded under multiple award indefinite delivery / indefinite quantity (“IDIQ”) vehicles until such task orders are issued.
The Company’s backlog is either funded or unfunded:
•Funded backlog represents contract value for which funding is appropriated less revenues previously recognized on the contract.
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•Unfunded backlog represents estimated values that have the potential to be recognized as revenues from negotiated contracts for which funding has not been appropriated and from unexercised contract options.
As of April 3, 2026, the Company had total backlog of $47.8 billion, compared with $44.8 billion as of March 28, 2025, an increase of $3.0 billion primarily due to new contract wins partially offset by revenue recognized on current contracts. Funded backlog as of April 3, 2026 was $6.9 billion.
The Company’s backlog, by reportable segment and in total, consisted of the following (in millions):

| April 3, 2026 |  | March 28, 2025
| DS |  | GES |  | Total |  | DS |  | GES |  | Total
Funded backlog | $ | 2,803 |  |  | $ | 4,114 |  |  | $ | 6,917 |  |  | $ | 2,467 |  |  | $ | 3,316 |  |  | $ | 5,783 |
Unfunded backlog | 17,789 |  |  | 23,076 |  |  | 40,865 |  |  | 16,666 |  |  | 22,358 |  |  | 39,024 |
Total backlog | $ | 20,592 |  |  | $ | 27,190 |  |  | $ | 47,782 |  |  | $ | 19,133 |  |  | $ | 25,674 |  |  | $ | 44,807 |

There is no assurance that all backlog will result in future revenues being recognized, and the backlog balance is subject to increases or decreases based on the execution of new contracts, contract modifications or extensions, deobligations, early terminations, and other factors.
Effects of Inflation
Given the nature of our operations and contract type mix, we expect the impact of inflation on our business may be limited for some of our contracts. During the six months ended April 3, 2026, 57% of our revenues was generated under cost-plus-fee type contracts that have limited inflation risk as they include provisions that adjust revenues to cover costs affected by inflation. The remainder of our revenues was generated under time-and-materials or fixed-price type contracts which we have historically been able to price in a manner that accommodates inflation and cost increases over the period of performance but changes in our expectations with respect to inflation rates or in the overall mix of our contract types could cause future results to differ substantially.
Liquidity and Capital Resources
Existing cash and cash equivalents and cash generated by operations are our primary sources of liquidity, as well as sales of receivables under our Master Accounts Receivable Purchase Agreement (“MARPA”) and available borrowing capacity under the revolving credit facility provided for in the senior secured credit facility (the “Credit Facility”).
The Credit Facility consisted of our term facility (“Term Loan”) maturing on September 27, 2031 and a $850 million revolving facility (“Revolver”) maturing on September 27, 2029, which included a $200 million letter of credit subfacility and a $100 million swingline subfacility. The Term Loan required quarterly principal amortization payments of $9 million, which commenced on March 31, 2025, with the remainder of the principal thereunder being due at maturity. The interest rates applicable to the Term Loan were floating interest rates equal to an Alternate Base Rate or Adjusted Term Secured Overnight Financing Rate (“SOFR”) plus an applicable margin based upon our net leverage ratio. On April 24, 2026, we entered into the first amendment to the Credit Facility. The amendment established a new $1,400 million senior secured term loan A facility (“Term Loan A”) due April 2031, amended the existing Term Loan, including a reduction in outstanding principal and revised terms, into a new $1,591 million senior secured term loan B facility (“Term Loan B”) due September 2031 and increased the Revolver by $150 million. See Note 14 — Subsequent Events of the notes to the condensed consolidated financial statements contained within this Quarterly Report on Form 10-Q. In August 2024, the Company also completed an offering of $1,000 million in aggregate principal amount of 7.250% senior notes due August 1, 2032 (the “Senior Notes”).
The Credit Facility and the Senior Notes are guaranteed by substantially all of our wholly owned material domestic restricted subsidiaries, subject to customary exceptions set forth in the credit agreement and indenture, respectively.
Each of the credit agreement and indenture requires us to comply with certain representations and warranties, customary affirmative and negative covenants and, in the case of the Revolver, under certain circumstances, a financial covenant. We were in compliance with all covenants as of April 3, 2026.
We believe that the combination of internally generated funds, available bank borrowings, and cash and cash equivalents on hand will provide the required liquidity and capital resources necessary to fund on-going operations, capital expenditures, scheduled principal and interest payments on our debt obligations, scheduled lease payments, and other working capital requirements over at least the next twelve months.
Over the longer term, our ability to generate sufficient cash flows from operations necessary to fulfill the obligations under the Credit Facility, Senior Notes and any other indebtedness we may incur will depend on our future financial performance which
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could be affected by factors outside of our control, including, but not limited to, worldwide economic and financial market conditions.
See “Note 5 — Sales of Receivables” and “Note 8 — Debt” of the notes to the condensed consolidated financial statements contained within this Quarterly Report on Form 10-Q.
Cash Flow Information

| Six Months Ended
(Amounts in millions) | April 3, 2026 |  | March 28, 2025
Net cash provided by operating activities | $ | 89 |  |  | $ | 167 |
Net cash used in investing activities | (51) |  |  | (39) |
Net cash used in financing activities | (44) |  |  | (28) |
Effect of exchange rate changes on cash and cash equivalents | (3) |  |  | (6) |
Net change in cash and cash equivalents | $ | (9) |  |  | $ | 94 |

Net cash provided by operating activities decreased by $78 million for the six months ended April 3, 2026 when compared to the six months ended March 28, 2025 as a result of a $38 million increase in cash earnings offset by $116 million in changes in operating assets and liabilities.
Net cash used in investing activities increased by $12 million for the six months ended April 3, 2026 when compared to the six months ended March 28, 2025 primarily due to contributions to equity method investments partially offset by returns of capital from equity method investments.
Net cash used in financing activities increased by $16 million for the six months ended April 3, 2026 when compared to the six months ended March 28, 2025 primarily due to the principal payments on our Term Loan, which were not required in first and second quarters of fiscal year 2025.
Critical Accounting Policies and Estimates
There have been no significant changes to the Company’s critical accounting policies as disclosed in our Annual Report on Form 10-K for the year ended October 3, 2025.
Recent Accounting Pronouncements
See “Note 2 — Recent Accounting Pronouncements” of the notes to the condensed consolidated financial statements contained within this Quarterly Report on Form 10-Q.
Item 3. Quantitative and Qualitative Disclosures About Market Risk
The remaining balance under the Term Loan, and any additional amounts that may be borrowed under the Revolver, are currently subject to interest rate fluctuations. We have the ability to manage these fluctuations in part through interest rate swaps on our variable rate debt. We have entered into floating-to-fixed interest rate swap agreements for an aggregate notional amount of $1.5 billion related to a portion of our variable rate debt. With every one percent fluctuation in the applicable interest rates, interest expense on our variable rate debt for the six months ended April 3, 2026 would have fluctuated by approximately $15 million.
Item 4. Controls and Procedures
Evaluation of Disclosure Controls and Procedures
Under the supervision and with the participation of our management, including the Chief Executive Officer and the Chief Financial Officer, we conducted an evaluation of the effectiveness of our disclosure controls and procedures (as such term is defined in Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) as of the end of the period covered by this report. Based on this evaluation, our Chief Executive Officer and our Chief Financial Officer concluded that our disclosure controls and procedures were effective as of such date.
Changes in Internal Control Over Financial Reporting
There have been no changes in our internal control over financial reporting (as such term is defined in rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the fiscal quarter ended April 3, 2026 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
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PART II
OTHER INFORMATION
Item 1. Legal Proceedings
The information required with respect to this item is set forth in Note 13 — Legal Proceedings and Commitments and Contingencies in the Notes to Consolidated Financial Statements appearing under Part I, Item 1 of this Form 10-Q.
Item 1A. Risk Factors
There have been no material changes to our Risk Factors disclosed in the Company’s Form 10-K for the year ended October 3, 2025.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
None.
Item 3. Defaults Upon Senior Securities
None.
Item 4. Mine Safety Disclosures
Not applicable.
Item 5. Other Information
None.
Item 6. Exhibits

|  |  |  | Filed with this Form 10-Q |  | Incorporated by Reference
Exhibit No. |  | Description |  |  | Form |  | Filing Date |  | Exhibit No.
10.1 |  | 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 |  |  |  | 8-K |  | April 28, 2026 |  | 10.1
31.1 |  | Section 302 Certification of John E. Heller |  | X |  |  |  |  |  |
31.2 |  | Section 302 Certification Travis B. Johnson |  | X |  |  |  |  |  |
32.1 |  | Section 906 Certification John E. Heller |  | X |  |  |  |  |  |
32.2 |  | Section 906 Certification Travis B. Johnson |  | X |  |  |  |  |  |
101.INS |  | XBRL Instance Document (the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document) |  |  |  |  |  |  |  |
101.SCH |  | Inline XBRL Taxonomy Extension Schema Document |  |  |  |  |  |  |  |
101.CAL |  | Inline XBRL Taxonomy Extension Calculation Linkbase Document |  |  |  |  |  |  |  |
101.DEF |  | Inline XBRL Taxonomy Extension Definition Linkbase Document |  |  |  |  |  |  |  |
101.LAB |  | Inline XBRL Taxonomy Extension Label Linkbase Document |  |  |  |  |  |  |  |
101.PRE |  | Inline XBRL Taxonomy Extension Presentation Linkbase Document |  |  |  |  |  |  |  |
104 |  | Cover Page Interactive Data File (embedded within the Inline XBRL document and contained in Exhibit 101) |  |  |  |  |  |  |  |

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SIGNATURES

Pursuant 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.
|  |  | AMENTUM HOLDINGS, INC.
|  |  | Registrant
Date: | May 12, 2026 | By: | /s/ Travis B. Johnson
|  |  | Travis B. Johnson
|  |  | Chief Financial Officer
|  |  | (Principal Financial Officer and Principal Accounting Officer)

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