Listed

Amentum Holdings, Inc.

AMTMNYSECIK 2011286IndustrialsFiscal year ends Oct 2

Standardized line items from XBRL company facts, the last twelve quarters. Negative values are in parentheses. A figure marked d is derived from year-to-date figures.

Income statement

Revenue$3.49bn, Q3 FY2026
Operating income$172.0m, Q3 FY2026
Net income$66.0m, Q3 FY2026
Amentum Holdings, Inc., income statement, quarterly
Line itemUnitperiod not labelled2023-12-29period not labelled2024-03-29period not labelled2024-06-28Q4 FY20242024-09-27Q1 FY20252024-12-27Q2 FY20252025-03-28Q3 FY20252025-06-27Q4 FY20252025-10-03Q1 FY20262026-01-02Q2 FY20262026-04-03Q3 FY20262026-07-03
Revenue$m1,983Revenue, period not labelled, three months to 2023-12-29$1.98bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure2,051Revenue, period not labelled, three months to 2024-03-29$2.05bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure2,142Revenue, period not labelled, three months to 2024-06-28$2.14bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure2,212Revenue, Q4 FY2024, three months to 2024-09-27$2.21bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure3,416Revenue, Q1 FY2025, three months to 2024-12-27$3.42bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure3,491Revenue, Q2 FY2025, three months to 2025-03-28$3.49bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure3,561Revenue, Q3 FY2025, three months to 2025-06-27$3.56bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure3,925Revenue, Q4 FY2025, three months to 2025-10-03$3.92bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure3,237Revenue, Q1 FY2026, three months to 2026-01-02$3.24bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure3,478Revenue, Q2 FY2026, three months to 2026-04-03$3.48bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure3,490Revenue, Q3 FY2026, three months to 2026-07-03$3.49bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Cost of revenue$m1,789Cost of revenue, period not labelled, three months to 2023-12-29$1.79bn. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure1,851Cost of revenue, period not labelled, three months to 2024-03-29$1.85bn. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure1,936Cost of revenue, period not labelled, three months to 2024-06-28$1.94bn. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure2,014Cost of revenue, Q4 FY2024, three months to 2024-09-27$2.01bn. XBRL concept us-gaap:CostOfRevenue. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure3,055Cost of revenue, Q1 FY2025, three months to 2024-12-27$3.06bn. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure3,124Cost of revenue, Q2 FY2025, three months to 2025-03-28$3.12bn. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure3,193Cost of revenue, Q3 FY2025, three months to 2025-06-27$3.19bn. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure3,508Cost of revenue, Q4 FY2025, three months to 2025-10-03$3.51bn. XBRL concept us-gaap:CostOfRevenue. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure2,911Cost of revenue, Q1 FY2026, three months to 2026-01-02$2.91bn. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure3,133Cost of revenue, Q2 FY2026, three months to 2026-04-03$3.13bn. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure3,130Cost of revenue, Q3 FY2026, three months to 2026-07-03$3.13bn. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Selling, general and administrative$m67.0Selling, general and administrative, period not labelled, three months to 2023-12-29$67.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure72.0Selling, general and administrative, period not labelled, three months to 2024-03-29$72.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure77.0Selling, general and administrative, period not labelled, three months to 2024-06-28$77.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure137Selling, general and administrative, Q4 FY2024, three months to 2024-09-27$137.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure130Selling, general and administrative, Q1 FY2025, three months to 2024-12-27$130.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure145Selling, general and administrative, Q2 FY2025, three months to 2025-03-28$145.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure165Selling, general and administrative, Q3 FY2025, three months to 2025-06-27$165.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure176Selling, general and administrative, Q4 FY2025, three months to 2025-10-03$176.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure115Selling, general and administrative, Q1 FY2026, three months to 2026-01-02$115.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure124Selling, general and administrative, Q2 FY2026, three months to 2026-04-03$124.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure122Selling, general and administrative, Q3 FY2026, three months to 2026-07-03$122.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Operating income$m86.0Operating income, period not labelled, three months to 2023-12-29$86.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure89.0Operating income, period not labelled, three months to 2024-03-29$89.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure89.0Operating income, period not labelled, three months to 2024-06-28$89.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure27.0Operating income, Q4 FY2024, three months to 2024-09-27$27.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure132Operating income, Q1 FY2025, three months to 2024-12-27$132.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure110Operating income, Q2 FY2025, three months to 2025-03-28$110.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure103Operating income, Q3 FY2025, three months to 2025-06-27$103.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure135Operating income, Q4 FY2025, three months to 2025-10-03$135.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure138Operating income, Q1 FY2026, three months to 2026-01-02$138.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure151Operating income, Q2 FY2026, three months to 2026-04-03$151.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure172Operating income, Q3 FY2026, three months to 2026-07-03$172.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Income tax$m14.0Income tax, period not labelled, three months to 2023-12-29$14.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure20.0Income tax, period not labelled, three months to 2024-03-29$20.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure2.0Income tax, period not labelled, three months to 2024-06-28$2.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure(76.0)Income tax, Q4 FY2024, three months to 2024-09-27−$76.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure24.0Income tax, Q1 FY2025, three months to 2024-12-27$24.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure22.0Income tax, Q2 FY2025, three months to 2025-03-28$22.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure13.0Income tax, Q3 FY2025, three months to 2025-06-27$13.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure(3.0)Income tax, Q4 FY2025, three months to 2025-10-03−$3.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure20.0Income tax, Q1 FY2026, three months to 2026-01-02$20.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure24.0Income tax, Q2 FY2026, three months to 2026-04-03$24.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure28.0Income tax, Q3 FY2026, three months to 2026-07-03$28.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Net income$m(41.0)Net income, period not labelled, three months to 2023-12-29−$41.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure(41.0)Net income, period not labelled, three months to 2024-03-29−$41.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure(26.0)Net income, period not labelled, three months to 2024-06-28−$26.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure26.0Net income, Q4 FY2024, three months to 2024-09-27$26.0m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure12.0Net income, Q1 FY2025, three months to 2024-12-27$12.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure4.0Net income, Q2 FY2025, three months to 2025-03-28$4.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure10.0Net income, Q3 FY2025, three months to 2025-06-27$10.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure40.0Net income, Q4 FY2025, three months to 2025-10-03$40.0m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure44.0Net income, Q1 FY2026, three months to 2026-01-02$44.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure54.0Net income, Q2 FY2026, three months to 2026-04-03$54.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure66.0Net income, Q3 FY2026, three months to 2026-07-03$66.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Diluted EPS$ per share(0.46)Diluted EPS, period not labelled, three months to 2023-12-29−$0.46 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure(0.46)Diluted EPS, period not labelled, three months to 2024-03-29−$0.46 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure(0.29)Diluted EPS, period not labelled, three months to 2024-06-28−$0.29 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figurenot reported0.05Diluted EPS, Q1 FY2025, three months to 2024-12-27$0.05 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure0.02Diluted EPS, Q2 FY2025, three months to 2025-03-28$0.02 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure0.04Diluted EPS, Q3 FY2025, three months to 2025-06-27$0.04 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figurenot reported0.18Diluted EPS, Q1 FY2026, three months to 2026-01-02$0.18 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure0.22Diluted EPS, Q2 FY2026, three months to 2026-04-03$0.22 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure0.27Diluted EPS, Q3 FY2026, three months to 2026-07-03$0.27 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Basic EPS$ per share(0.46)Basic EPS, period not labelled, three months to 2023-12-29−$0.46 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure(0.46)Basic EPS, period not labelled, three months to 2024-03-29−$0.46 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure(0.29)Basic EPS, period not labelled, three months to 2024-06-28−$0.29 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figurenot reported0.05Basic EPS, Q1 FY2025, three months to 2024-12-27$0.05 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure0.02Basic EPS, Q2 FY2025, three months to 2025-03-28$0.02 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure0.04Basic EPS, Q3 FY2025, three months to 2025-06-27$0.04 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figurenot reported0.18Basic EPS, Q1 FY2026, three months to 2026-01-02$0.18 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure0.22Basic EPS, Q2 FY2026, three months to 2026-04-03$0.22 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure0.27Basic EPS, Q3 FY2026, three months to 2026-07-03$0.27 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure

Balance sheet

Cash and equivalents$459.0m, Q3 FY2026
Long-term debt$3.77bn, Q3 FY2026
Shareholders' equity$4.70bn, Q3 FY2026
Amentum Holdings, Inc., balance sheet, quarterly
Line itemUnitperiod not labelled2023-09-29period not labelled2023-12-29period not labelled2024-03-29period not labelled2024-06-28FY20242024-09-27Q1 FY20252024-12-27Q2 FY20252025-03-28Q3 FY20252025-06-27FY20252025-10-03Q1 FY20262026-01-02Q2 FY20262026-04-03Q3 FY20262026-07-03
Cash and equivalents$bn0.3Cash and equivalents, period not labelled, at 2023-09-29$305.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-K filed 2024-12-17, accession 0002011286-24-000072.Report this figurenot reportednot reportednot reported0.5Cash and equivalents, FY2024, at 2024-09-27$452.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-K filed 2025-11-25, accession 0001628280-25-053993.Report this figure0.5Cash and equivalents, Q1 FY2025, at 2024-12-27$522.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure0.5Cash and equivalents, Q2 FY2025, at 2025-03-28$546.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure0.7Cash and equivalents, Q3 FY2025, at 2025-06-27$738.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure0.4Cash and equivalents, FY2025, at 2025-10-03$437.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure0.2Cash and equivalents, Q1 FY2026, at 2026-01-02$247.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure0.4Cash and equivalents, Q2 FY2026, at 2026-04-03$428.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure0.5Cash and equivalents, Q3 FY2026, at 2026-07-03$459.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Current assets$bn1.9Current assets, period not labelled, at 2023-09-29$1.93bn. XBRL concept us-gaap:AssetsCurrent. 10-K filed 2024-12-17, accession 0002011286-24-000072.Report this figurenot reportednot reportednot reported3.1Current assets, FY2024, at 2024-09-27$3.08bn. XBRL concept us-gaap:AssetsCurrent. 10-K filed 2025-11-25, accession 0001628280-25-053993.Report this figure3.1Current assets, Q1 FY2025, at 2024-12-27$3.14bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure3.3Current assets, Q2 FY2025, at 2025-03-28$3.27bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure3.4Current assets, Q3 FY2025, at 2025-06-27$3.43bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure3.1Current assets, FY2025, at 2025-10-03$3.11bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure3.0Current assets, Q1 FY2026, at 2026-01-02$2.96bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure3.1Current assets, Q2 FY2026, at 2026-04-03$3.10bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure3.2Current assets, Q3 FY2026, at 2026-07-03$3.19bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Total assets$bn6.4Total assets, period not labelled, at 2023-09-29$6.41bn. XBRL concept us-gaap:Assets. 10-K filed 2024-12-17, accession 0002011286-24-000072.Report this figurenot reportednot reportednot reported12.0Total assets, FY2024, at 2024-09-27$11.97bn. XBRL concept us-gaap:Assets. 10-K filed 2025-11-25, accession 0001628280-25-053993.Report this figure11.9Total assets, Q1 FY2025, at 2024-12-27$11.92bn. XBRL concept us-gaap:Assets. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure12.0Total assets, Q2 FY2025, at 2025-03-28$12.00bn. XBRL concept us-gaap:Assets. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure11.8Total assets, Q3 FY2025, at 2025-06-27$11.81bn. XBRL concept us-gaap:Assets. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure11.5Total assets, FY2025, at 2025-10-03$11.46bn. XBRL concept us-gaap:Assets. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure11.2Total assets, Q1 FY2026, at 2026-01-02$11.20bn. XBRL concept us-gaap:Assets. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure11.2Total assets, Q2 FY2026, at 2026-04-03$11.17bn. XBRL concept us-gaap:Assets. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure11.2Total assets, Q3 FY2026, at 2026-07-03$11.20bn. XBRL concept us-gaap:Assets. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Current liabilities$bn1.4Current liabilities, period not labelled, at 2023-09-29$1.38bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-K filed 2024-12-17, accession 0002011286-24-000072.Report this figurenot reportednot reportednot reported2.0Current liabilities, FY2024, at 2024-09-27$1.97bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-K filed 2025-11-25, accession 0001628280-25-053993.Report this figure2.0Current liabilities, Q1 FY2025, at 2024-12-27$1.97bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure2.1Current liabilities, Q2 FY2025, at 2025-03-28$2.10bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure2.2Current liabilities, Q3 FY2025, at 2025-06-27$2.17bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure2.4Current liabilities, FY2025, at 2025-10-03$2.35bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure2.1Current liabilities, Q1 FY2026, at 2026-01-02$2.09bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure2.1Current liabilities, Q2 FY2026, at 2026-04-03$2.09bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure2.1Current liabilities, Q3 FY2026, at 2026-07-03$2.09bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Total liabilities$bn6.0Total liabilities, period not labelled, at 2023-09-29$6.00bn. XBRL concept us-gaap:Liabilities. 10-K filed 2024-12-17, accession 0002011286-24-000072.Report this figurenot reportednot reportednot reported7.4Total liabilities, FY2024, at 2024-09-27$7.42bn. XBRL concept us-gaap:Liabilities. 10-K filed 2025-11-25, accession 0001628280-25-053993.Report this figure7.4Total liabilities, Q1 FY2025, at 2024-12-27$7.36bn. XBRL concept us-gaap:Liabilities. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure7.4Total liabilities, Q2 FY2025, at 2025-03-28$7.42bn. XBRL concept us-gaap:Liabilities. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure7.2Total liabilities, Q3 FY2025, at 2025-06-27$7.22bn. XBRL concept us-gaap:Liabilities. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure6.8Total liabilities, FY2025, at 2025-10-03$6.84bn. XBRL concept us-gaap:Liabilities. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure6.5Total liabilities, Q1 FY2026, at 2026-01-02$6.54bn. XBRL concept us-gaap:Liabilities. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure6.5Total liabilities, Q2 FY2026, at 2026-04-03$6.47bn. XBRL concept us-gaap:Liabilities. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure6.4Total liabilities, Q3 FY2026, at 2026-07-03$6.41bn. XBRL concept us-gaap:Liabilities. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Long-term debt$bn4.1Long-term debt, period not labelled, at 2023-09-29$4.07bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-K filed 2024-12-17, accession 0002011286-24-000072.Report this figurenot reportednot reportednot reported4.6Long-term debt, FY2024, at 2024-09-27$4.64bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-K filed 2025-11-25, accession 0001628280-25-053993.Report this figure4.6Long-term debt, Q1 FY2025, at 2024-12-27$4.64bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure4.6Long-term debt, Q2 FY2025, at 2025-03-28$4.64bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure4.4Long-term debt, Q3 FY2025, at 2025-06-27$4.44bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure3.9Long-term debt, FY2025, at 2025-10-03$3.90bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure3.9Long-term debt, Q1 FY2026, at 2026-01-02$3.89bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure3.9Long-term debt, Q2 FY2026, at 2026-04-03$3.89bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure3.8Long-term debt, Q3 FY2026, at 2026-07-03$3.77bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Current portion of debt$bn0.0Current portion of debt, period not labelled, at 2023-09-29$45.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-K filed 2024-12-17, accession 0002011286-24-000072.Report this figurenot reportednot reportednot reported0.0Current portion of debt, FY2024, at 2024-09-27$36.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-K filed 2025-11-25, accession 0001628280-25-053993.Report this figure0.0Current portion of debt, Q1 FY2025, at 2024-12-27$44.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure0.0Current portion of debt, Q2 FY2025, at 2025-03-28$43.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure0.0Current portion of debt, Q3 FY2025, at 2025-06-27$43.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure0.0Current portion of debt, FY2025, at 2025-10-03$42.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure0.0Current portion of debt, Q1 FY2026, at 2026-01-02$41.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure0.0Current portion of debt, Q2 FY2026, at 2026-04-03$40.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure0.1Current portion of debt, Q3 FY2026, at 2026-07-03$54.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure
Shareholders' equity$bn0.4Shareholders' equity, period not labelled, at 2023-09-29$375.0m. XBRL concept us-gaap:StockholdersEquity. 10-K filed 2024-12-17, accession 0002011286-24-000072.Report this figure0.4Shareholders' equity, period not labelled, at 2023-12-29$358.0m. XBRL concept us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure0.3Shareholders' equity, period not labelled, at 2024-03-29$324.0m. XBRL concept us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure0.3Shareholders' equity, period not labelled, at 2024-06-28$303.0m. XBRL concept us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure4.5Shareholders' equity, FY2024, at 2024-09-27$4.46bn. XBRL concept us-gaap:StockholdersEquity. 10-K filed 2025-11-25, accession 0001628280-25-053993.Report this figure4.5Shareholders' equity, Q1 FY2025, at 2024-12-27$4.47bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure4.4Shareholders' equity, Q2 FY2025, at 2025-03-28$4.43bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure4.5Shareholders' equity, Q3 FY2025, at 2025-06-27$4.46bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure4.5Shareholders' equity, FY2025, at 2025-10-03$4.50bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure4.6Shareholders' equity, Q1 FY2026, at 2026-01-02$4.56bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure4.6Shareholders' equity, Q2 FY2026, at 2026-04-03$4.61bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure4.7Shareholders' equity, Q3 FY2026, at 2026-07-03$4.70bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure

Cash flow

Operating cash flow$146.0m, Q3 FY2026
Capital expenditure$11.0m, Q3 FY2026
Amentum Holdings, Inc., cash flow, quarterly
Line itemUnitperiod not labelled2023-12-29period not labelled2024-03-29period not labelled2024-06-28Q4 FY20242024-09-27Q1 FY20252024-12-27Q2 FY20252025-03-28Q3 FY20252025-06-27Q4 FY20252025-10-03Q1 FY20262026-01-02Q2 FY20262026-04-03Q3 FY20262026-07-03
Operating cash flow$m(83.0)Operating cash flow, period not labelled, three months to 2023-12-29−$83.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure5.0Operating cash flow, period not labelled, three months to 2024-03-29$5.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-05-07, accession 0002011286-25-000141. Derived: 6-month figure less the 3-month figure.Report this figure238Operating cash flow, period not labelled, three months to 2024-06-28$238.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-08-06, accession 0002011286-25-000163. Derived: 9-month figure less the 6-month figure.Report this figure(113)Operating cash flow, Q4 FY2024, three months to 2024-09-27−$113.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure110Operating cash flow, Q1 FY2025, three months to 2024-12-27$110.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure57.0Operating cash flow, Q2 FY2025, three months to 2025-03-28$57.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-12, accession 0001628280-26-034156. Derived: 6-month figure less the 3-month figure.Report this figure106Operating cash flow, Q3 FY2025, three months to 2025-06-27$106.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-11, accession 0001628280-26-055727. Derived: 9-month figure less the 6-month figure.Report this figure270Operating cash flow, Q4 FY2025, three months to 2025-10-03$270.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure(136)Operating cash flow, Q1 FY2026, three months to 2026-01-02−$136.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure225Operating cash flow, Q2 FY2026, three months to 2026-04-03$225.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-12, accession 0001628280-26-034156. Derived: 6-month figure less the 3-month figure.Report this figure146Operating cash flow, Q3 FY2026, three months to 2026-07-03$146.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-11, accession 0001628280-26-055727. Derived: 9-month figure less the 6-month figure.Report this figure
Capital expenditure$m2.0Capital expenditure, period not labelled, three months to 2023-12-29$2.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure3.0Capital expenditure, period not labelled, three months to 2024-03-29$3.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-05-07, accession 0002011286-25-000141. Derived: 6-month figure less the 3-month figure.Report this figure2.0Capital expenditure, period not labelled, three months to 2024-06-28$2.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-08-06, accession 0002011286-25-000163. Derived: 9-month figure less the 6-month figure.Report this figure4.0Capital expenditure, Q4 FY2024, three months to 2024-09-27$4.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure8.0Capital expenditure, Q1 FY2025, three months to 2024-12-27$8.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure4.0Capital expenditure, Q2 FY2025, three months to 2025-03-28$4.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-12, accession 0001628280-26-034156. Derived: 6-month figure less the 3-month figure.Report this figure6.0Capital expenditure, Q3 FY2025, three months to 2025-06-27$6.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-11, accession 0001628280-26-055727. Derived: 9-month figure less the 6-month figure.Report this figure9.0Capital expenditure, Q4 FY2025, three months to 2025-10-03$9.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2025-11-25, accession 0001628280-25-053993. Derived: 12-month figure less the 9-month figure.Report this figure6.0Capital expenditure, Q1 FY2026, three months to 2026-01-02$6.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure5.0Capital expenditure, Q2 FY2026, three months to 2026-04-03$5.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-12, accession 0001628280-26-034156. Derived: 6-month figure less the 3-month figure.Report this figure11.0Capital expenditure, Q3 FY2026, three months to 2026-07-03$11.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-11, accession 0001628280-26-055727. Derived: 9-month figure less the 6-month figure.Report this figure

Shares

Diluted shares (weighted)245.00m, Q3 FY2026
Amentum Holdings, Inc., shares, quarterly
Line itemUnitperiod not labelled2023-12-29period not labelled2024-03-29period not labelled2024-06-28Q1 FY20252024-12-27Q2 FY20252025-03-28Q3 FY20252025-06-27Q1 FY20262026-01-02Q2 FY20262026-04-03Q3 FY20262026-07-03
Diluted shares (weighted)m shares90.0Diluted shares (weighted), period not labelled, three months to 2023-12-2990,000,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-02-05, accession 0002011286-25-000060.Report this figure90.0Diluted shares (weighted), period not labelled, three months to 2024-03-2990,000,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-05-07, accession 0002011286-25-000141.Report this figure90.0Diluted shares (weighted), period not labelled, three months to 2024-06-2890,000,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-08-06, accession 0002011286-25-000163.Report this figure243Diluted shares (weighted), Q1 FY2025, three months to 2024-12-27243,000,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure243Diluted shares (weighted), Q2 FY2025, three months to 2025-03-28243,000,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure243Diluted shares (weighted), Q3 FY2025, three months to 2025-06-27243,000,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure244Diluted shares (weighted), Q1 FY2026, three months to 2026-01-02244,000,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-02-10, accession 0001628280-26-006676.Report this figure245Diluted shares (weighted), Q2 FY2026, three months to 2026-04-03245,000,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-05-12, accession 0001628280-26-034156.Report this figure245Diluted shares (weighted), Q3 FY2026, three months to 2026-07-03245,000,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure

Shares outstanding: 244.51mShares outstanding, period not labelled, at 2026-08-07244,506,413 shares. XBRL concept dei:EntityCommonStockSharesOutstanding. 10-Q filed 2026-08-11, accession 0001628280-26-055727.Report this figure at Aug 7, 2026, from the cover of the 10-Q filed Aug 11, 2026.

Source: SEC EDGAR, XBRL company facts. Last ingested by Listed: Oct 24, 2026, 15:50 ET. Listed shows no prices and gives no investment advice.