| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 452a | 305a |
| Accounts receivable, net | 2,401a | 1,440a |
| Prepaid expenses and other current assets | 231a | 186a |
| Total current assets | 3,084a | 1,931a |
| Property and equipment, net | 144a | 85a |
| Equity method investments | 123a | 104a |
| Goodwill | 5,556a | 2,891a |
| Intangible assets, net | 2,623a | 988a |
| Other long-term assets | 444a | 414a |
| Total assets | 11,974a | 6,413a |
| Liabilities | — | — |
| Current liabilities | — | — |
| Current portion of long-term debt | 36a | 45a |
| Accounts payable | 764a | 560a |
| Accrued compensation and benefits | 696a | 369a |
| Contract liabilities | 113a | 120a |
| Other current liabilities | 356a | 282a |
| Total current liabilities | 1,965a | 1,376a |
| Long-term debt, net of current portion | 4,643a | 4,067a |
| Deferred tax liabilities | 370a | 141a |
| Other long-term liabilities | 444a | 413a |
| Total liabilities | 7,422a | 5,997a |
| Shareholders' equity | — | — |
| Common stock | 2a | 0a |
| Additional paid-in capital | 4,962a | 772a |
| Retained deficit | -527a | -445a |
| Accumulated other comprehensive income | 23a | 48a |
| Total Amentum shareholders' equity | 4,460a | 375a |
| Non-controlling interests | 92a | 41a |
| Total shareholders' equity | 4,552a | 416a |
| Total liabilities and shareholders' equity | 11,974a | 6,413a |