Listed

Century Aluminum Co

CENXNasdaqCIK 949157MaterialsFiscal year ends Dec 31

Latest reported revenue, Q2 FY2026$752.1mRevenue, Q2 FY2026, three months to 2026-06-30$752.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figureThree months to Jun 30, 2026, from the 10-Q filed Aug 6, 2026.

Latest quarter: Q2 FY2026

Three months to Jun 30, 2026, against the same quarter a year earlier.

  • Revenue$752.1mRevenue, Q2 FY2026, three months to 2026-06-30$752.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure+19.7% on a year earlier
  • Gross margin30.3%Gross margin, Q2 FY2026, three months to 2026-06-30. gross profit / revenueGross profit: $227.9m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Revenue: $752.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure+25.0 pts on a year earlier
  • Operating margin28.1%Operating margin, Q2 FY2026, three months to 2026-06-30. operating income / revenueOperating income: $211.6m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Revenue: $752.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure+25.3 pts on a year earlier
  • Net margin33.1%Net margin, Q2 FY2026, three months to 2026-06-30. net income / revenueNet income: $249.3m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Revenue: $752.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure+33.9 pts on a year earlier
  • Diluted EPS$2.39Diluted EPS, Q2 FY2026, three months to 2026-06-30$2.39 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figureSign changed from a year earlier
  • Free cash flow$108.0mFree cash flow, Q2 FY2026, three months to 2026-06-30. operating cash flow − capital expenditureOperating cash flow: $167.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-06, accession 0001628280-26-054308. Derived: 6-month figure less the 3-month figure.Capital expenditure: $59.6m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-06, accession 0001628280-26-054308. Derived: 6-month figure less the 3-month figure.Report this figureSign changed from a year earlier

Last eight quarters

Full statements
Revenue$752.1mGross margin 30.3%
Diluted EPS$2.39, Q2 FY2026
Free cash flow$108.0m, Q2 FY2026
Century Aluminum Co, key figures for the last eight quarters
Line itemUnitperiod not labelled2024-09-30Q4 FY20242024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q4 FY20252025-12-31Q1 FY20262026-03-31Q2 FY20262026-06-30Shape over the periods
Revenue$m539Revenue, period not labelled, three months to 2024-09-30$539.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-06, accession 0001628280-25-050200.Report this figure631Revenue, Q4 FY2024, three months to 2024-12-31$630.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Report this figure634Revenue, Q1 FY2025, three months to 2025-03-31$633.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure628Revenue, Q2 FY2025, three months to 2025-06-30$628.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure632Revenue, Q3 FY2025, three months to 2025-09-30$632.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-06, accession 0001628280-25-050200.Report this figure634Revenue, Q4 FY2025, three months to 2025-12-31$633.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Report this figure649Revenue, Q1 FY2026, three months to 2026-03-31$649.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure752Revenue, Q2 FY2026, three months to 2026-06-30$752.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure
Gross margin%14.3%Gross margin, period not labelled, three months to 2024-09-30. gross profit / revenueGross profit: $76.9m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $539.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-06, accession 0001628280-25-050200.Report this figure8.4%Gross margin, Q4 FY2024, three months to 2024-12-31. gross profit / revenueGross profit: $53.3m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Revenue: $630.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Report this figure9.0%Gross margin, Q1 FY2025, three months to 2025-03-31. gross profit / revenueGross profit: $57.3m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Revenue: $633.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure5.3%Gross margin, Q2 FY2025, three months to 2025-06-30. gross profit / revenueGross profit: $33.6m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Revenue: $628.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure11.8%Gross margin, Q3 FY2025, three months to 2025-09-30. gross profit / revenueGross profit: $74.9m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $632.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-06, accession 0001628280-25-050200.Report this figure13.0%Gross margin, Q4 FY2025, three months to 2025-12-31. gross profit / revenueGross profit: $82.3m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Revenue: $633.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Report this figure18.3%Gross margin, Q1 FY2026, three months to 2026-03-31. gross profit / revenueGross profit: $118.8m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Revenue: $649.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure30.3%Gross margin, Q2 FY2026, three months to 2026-06-30. gross profit / revenueGross profit: $227.9m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Revenue: $752.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure
Operating margin%10.9%Operating margin, period not labelled, three months to 2024-09-30. operating income / revenueOperating income: $58.9m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $539.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-06, accession 0001628280-25-050200.Report this figure5.8%Operating margin, Q4 FY2024, three months to 2024-12-31. operating income / revenueOperating income: $36.3m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Revenue: $630.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Report this figure6.8%Operating margin, Q1 FY2025, three months to 2025-03-31. operating income / revenueOperating income: $42.8m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Revenue: $633.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure2.9%Operating margin, Q2 FY2025, three months to 2025-06-30. operating income / revenueOperating income: $18.1m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Revenue: $628.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure8.8%Operating margin, Q3 FY2025, three months to 2025-09-30. operating income / revenueOperating income: $55.9m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $632.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-06, accession 0001628280-25-050200.Report this figure5.2%Operating margin, Q4 FY2025, three months to 2025-12-31. operating income / revenueOperating income: $33.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Revenue: $633.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Report this figure57.6%Operating margin, Q1 FY2026, three months to 2026-03-31. operating income / revenueOperating income: $374.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Revenue: $649.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure28.1%Operating margin, Q2 FY2026, three months to 2026-06-30. operating income / revenueOperating income: $211.6m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Revenue: $752.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure
Net margin%8.8%Net margin, period not labelled, three months to 2024-09-30. net income / revenueNet income: $47.3m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $539.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-06, accession 0001628280-25-050200.Report this figure7.2%Net margin, Q4 FY2024, three months to 2024-12-31. net income / revenueNet income: $45.2m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Revenue: $630.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Report this figure4.7%Net margin, Q1 FY2025, three months to 2025-03-31. net income / revenueNet income: $29.7m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Revenue: $633.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure(0.7%)Net margin, Q2 FY2025, three months to 2025-06-30. net income / revenueNet income: −$4.6m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Revenue: $628.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure2.4%Net margin, Q3 FY2025, three months to 2025-09-30. net income / revenueNet income: $14.9m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $632.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-06, accession 0001628280-25-050200.Report this figure0.3%Net margin, Q4 FY2025, three months to 2025-12-31. net income / revenueNet income: $1.8m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Revenue: $633.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Report this figure52.0%Net margin, Q1 FY2026, three months to 2026-03-31. net income / revenueNet income: $337.5m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Revenue: $649.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure33.1%Net margin, Q2 FY2026, three months to 2026-06-30. net income / revenueNet income: $249.3m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Revenue: $752.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure
Diluted EPS$ per share0.46Diluted EPS, period not labelled, three months to 2024-09-30$0.46 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-06, accession 0001628280-25-050200.Report this figurenot reported (Diluted EPS not reported)0.29Diluted EPS, Q1 FY2025, three months to 2025-03-31$0.29 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure(0.05)Diluted EPS, Q2 FY2025, three months to 2025-06-30−$0.05 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure0.15Diluted EPS, Q3 FY2025, three months to 2025-09-30$0.15 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-06, accession 0001628280-25-050200.Report this figurenot reported (Diluted EPS not reported)3.23Diluted EPS, Q1 FY2026, three months to 2026-03-31$3.23 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure2.39Diluted EPS, Q2 FY2026, three months to 2026-06-30$2.39 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-06, accession 0001628280-26-054308.Report this figure
Free cash flow$m(2.4)Free cash flow, period not labelled, three months to 2024-09-30. operating cash flow − capital expenditureOperating cash flow: $20.1m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-06, accession 0001628280-25-050200. Derived: 9-month figure less the 6-month figure.Capital expenditure: $22.5m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-11-06, accession 0001628280-25-050200. Derived: 9-month figure less the 6-month figure.Report this figure(54.6)Free cash flow, Q4 FY2024, three months to 2024-12-31. operating cash flow − capital expenditureOperating cash flow: −$41.4m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Capital expenditure: $13.2m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Report this figure51.1Free cash flow, Q1 FY2025, three months to 2025-03-31. operating cash flow − capital expenditureOperating cash flow: $72.3m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Capital expenditure: $21.2m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure(15.9)Free cash flow, Q2 FY2025, three months to 2025-06-30. operating cash flow − capital expenditureOperating cash flow: $7.9m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-06, accession 0001628280-26-054308. Derived: 6-month figure less the 3-month figure.Capital expenditure: $23.8m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-06, accession 0001628280-26-054308. Derived: 6-month figure less the 3-month figure.Report this figure(18.1)Free cash flow, Q3 FY2025, three months to 2025-09-30. operating cash flow − capital expenditureOperating cash flow: $2.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-06, accession 0001628280-25-050200. Derived: 9-month figure less the 6-month figure.Capital expenditure: $20.1m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-11-06, accession 0001628280-25-050200. Derived: 9-month figure less the 6-month figure.Report this figure67.7Free cash flow, Q4 FY2025, three months to 2025-12-31. operating cash flow − capital expenditureOperating cash flow: $102.8m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Capital expenditure: $35.1m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-03-03, accession 0001628280-26-013788. Derived: 12-month figure less the 9-month figure.Report this figure(6.4)Free cash flow, Q1 FY2026, three months to 2026-03-31. operating cash flow − capital expenditureOperating cash flow: $68.4m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Capital expenditure: $74.8m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-07, accession 0001628280-26-032094.Report this figure108Free cash flow, Q2 FY2026, three months to 2026-06-30. operating cash flow − capital expenditureOperating cash flow: $167.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-06, accession 0001628280-26-054308. Derived: 6-month figure less the 3-month figure.Capital expenditure: $59.6m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-06, accession 0001628280-26-054308. Derived: 6-month figure less the 3-month figure.Report this figure

Focus or hover a figure to see its XBRL concept, period and filing; each links to that filing. A figure marked d is derived: a quarter computed from year-to-date figures, such as the fourth quarter as the fiscal year less the nine months before it. A ratio reads not reported when any input is missing.

Last five fiscal years

Revenue$2.53bnGross margin 10.1%
Diluted EPS$0.42, FY2025
Free cash flow$84.8m, FY2025
Century Aluminum Co, key figures for the last five fiscal years
Line itemUnitFY20212021-12-31FY20222022-12-31FY20232023-12-31FY20242024-12-31FY20252025-12-31Shape over the periods
Revenue$m2,213Revenue, FY2021, twelve months to 2021-12-31$2.21bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2024-03-15, accession 0000949157-24-000028.Report this figure2,777Revenue, FY2022, twelve months to 2022-12-31$2.78bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-03-03, accession 0000949157-25-000024.Report this figure2,185Revenue, FY2023, twelve months to 2023-12-31$2.19bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure2,220Revenue, FY2024, twelve months to 2024-12-31$2.22bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure2,528Revenue, FY2025, twelve months to 2025-12-31$2.53bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure
Gross margin%5.6%Gross margin, FY2021, twelve months to 2021-12-31. gross profit / revenueGross profit: $124.2m. XBRL concept us-gaap:GrossProfit. 10-K filed 2024-03-15, accession 0000949157-24-000028.Revenue: $2.21bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2024-03-15, accession 0000949157-24-000028.Report this figure1.7%Gross margin, FY2022, twelve months to 2022-12-31. gross profit / revenueGross profit: $46.7m. XBRL concept us-gaap:GrossProfit. 10-K filed 2025-03-03, accession 0000949157-25-000024.Revenue: $2.78bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-03-03, accession 0000949157-25-000024.Report this figure4.0%Gross margin, FY2023, twelve months to 2023-12-31. gross profit / revenueGross profit: $87.6m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $2.19bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure7.7%Gross margin, FY2024, twelve months to 2024-12-31. gross profit / revenueGross profit: $172.0m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $2.22bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure10.1%Gross margin, FY2025, twelve months to 2025-12-31. gross profit / revenueGross profit: $256.4m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $2.53bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure
Operating margin%3.0%Operating margin, FY2021, twelve months to 2021-12-31. operating income / revenueOperating income: $66.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2024-03-15, accession 0000949157-24-000028.Revenue: $2.21bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2024-03-15, accession 0000949157-24-000028.Report this figure(5.4%)Operating margin, FY2022, twelve months to 2022-12-31. operating income / revenueOperating income: −$150.2m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2025-03-03, accession 0000949157-25-000024.Revenue: $2.78bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-03-03, accession 0000949157-25-000024.Report this figure1.3%Operating margin, FY2023, twelve months to 2023-12-31. operating income / revenueOperating income: $27.5m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $2.19bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure4.9%Operating margin, FY2024, twelve months to 2024-12-31. operating income / revenueOperating income: $108.4m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $2.22bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure6.3%Operating margin, FY2025, twelve months to 2025-12-31. operating income / revenueOperating income: $158.1m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $2.53bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure
Net margin%(7.6%)Net margin, FY2021, twelve months to 2021-12-31. net income / revenueNet income: −$167.1m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2024-03-15, accession 0000949157-24-000028.Revenue: $2.21bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2024-03-15, accession 0000949157-24-000028.Report this figure(0.5%)Net margin, FY2022, twelve months to 2022-12-31. net income / revenueNet income: −$14.1m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2025-03-03, accession 0000949157-25-000024.Revenue: $2.78bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-03-03, accession 0000949157-25-000024.Report this figure(2.0%)Net margin, FY2023, twelve months to 2023-12-31. net income / revenueNet income: −$43.1m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $2.19bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure15.2%Net margin, FY2024, twelve months to 2024-12-31. net income / revenueNet income: $336.8m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $2.22bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure1.7%Net margin, FY2025, twelve months to 2025-12-31. net income / revenueNet income: $41.8m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-03, accession 0001628280-26-013788.Revenue: $2.53bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure
Diluted EPS$ per share(1.85)Diluted EPS, FY2021, twelve months to 2021-12-31−$1.85 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2024-03-15, accession 0000949157-24-000028.Report this figure(0.15)Diluted EPS, FY2022, twelve months to 2022-12-31−$0.15 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2025-03-03, accession 0000949157-25-000024.Report this figure(0.47)Diluted EPS, FY2023, twelve months to 2023-12-31−$0.47 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure3.27Diluted EPS, FY2024, twelve months to 2024-12-31$3.27 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure0.42Diluted EPS, FY2025, twelve months to 2025-12-31$0.42 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure
Free cash flow$m(148)Free cash flow, FY2021, twelve months to 2021-12-31. operating cash flow − capital expenditureOperating cash flow: −$64.7m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2024-03-15, accession 0000949157-24-000028.Capital expenditure: $83.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2024-03-15, accession 0000949157-24-000028.Report this figure(60.4)Free cash flow, FY2022, twelve months to 2022-12-31. operating cash flow − capital expenditureOperating cash flow: $25.9m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2025-03-03, accession 0000949157-25-000024.Capital expenditure: $86.3m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2025-03-03, accession 0000949157-25-000024.Report this figure10.6Free cash flow, FY2023, twelve months to 2023-12-31. operating cash flow − capital expenditureOperating cash flow: $105.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-03, accession 0001628280-26-013788.Capital expenditure: $95.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure(107)Free cash flow, FY2024, twelve months to 2024-12-31. operating cash flow − capital expenditureOperating cash flow: −$24.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-03, accession 0001628280-26-013788.Capital expenditure: $82.3m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure84.8Free cash flow, FY2025, twelve months to 2025-12-31. operating cash flow − capital expenditureOperating cash flow: $185.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-03, accession 0001628280-26-013788.Capital expenditure: $100.2m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-03-03, accession 0001628280-26-013788.Report this figure

Focus or hover a figure to see its XBRL concept, period and filing; each links to that filing. A figure marked d is derived: a quarter computed from year-to-date figures, such as the fourth quarter as the fiscal year less the nine months before it. A ratio reads not reported when any input is missing.

Insider purchases and sales

All insider transactions

The last 20 open-market transactions reported on Form 4 (codes P and S). The reported price is the price per share the insider stated on the form: filing data, not a market price.

No open-market purchases or sales by insiders are in coverage from Nov 2024 to Oct 2026.

No open-market purchases or sales by insiders are in coverage for this company.

Funds that report holding it

All funds

From each manager's latest Form 13F, largest reported value first. Reported value is as filed at the quarter end: filing data, not a price. A put or call is an option position, not shares held.

Funds that report holding Century Aluminum Co
FundQuarter endedReported valueSharesPut or callChange on the quarter before
Glencore plc2026-06-30$1.37bn29,690,702Unchanged
BlackRock, Inc.2026-06-30$474.1m10,304,905Added+1,294,526
STATE STREET CORP2026-06-30$255.0m5,542,720Added+875,180
VANGUARD PORTFOLIO MANAGEMENT LLC2026-06-30$219.6m4,773,720Added+532,163
VANGUARD CAPITAL MANAGEMENT LLC2026-06-30$136.8m2,972,532Added+386,425
Invesco Ltd.2026-06-30$111.2m2,417,794Added+341,266
Sourcerock Group LLC2026-06-30$104.3m2,266,085Reduced−421,164
DIMENSIONAL FUND ADVISORS LP2026-06-30$101.8m2,211,502Added+20,580
FMR LLC2026-06-30$90.2m1,960,353Reduced−699,701
GEODE CAPITAL MANAGEMENT, LLC2026-06-30$85.0m1,846,800Added+306,588

Recent filings

All 1,115 filings

Reports and events: 10-K, 10-Q, 8-K, proxy statements and ownership schedules.

Century Aluminum Co, recent filings
FiledFormWhat it isAccession number
2026-08-0620:11 ET10-QQuarterly reportPeriod 2026-06-300001628280-26-054308
2026-08-0620:09 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001628280-26-054300
2026-06-1720:35 ET8-K5.07 Shareholder vote results; 9.01 Financial statements and exhibits0001628280-26-043936
2026-05-0720:10 ET10-QQuarterly reportPeriod 2026-03-310001628280-26-032094
2026-05-0720:06 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001628280-26-032082
2026-04-2413:00 ETDEF 14AProxy statementPeriod 2026-06-150001552781-26-000269
2026-03-0421:49 ETSCHEDULE 13D/AOwnership report, active investor, amended0001104659-26-023524
2026-03-0321:07 ET10-KAnnual reportPeriod 2025-12-310001628280-26-013788
2026-03-0321:05 ET8-K4.02 Non-reliance on financial statements0001628280-26-013781
2026-02-1921:46 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001628280-26-009831

Latest annual report

Form 10-K for the fiscal year ended Dec 31, 2025Filed Mar 3, 2026. Its page lists the documents and the extracted sections, such as Business and Risk factors.

Forecast league

Q3 FY2026, the quarter ended 2026-09-30, is open for forecasts until the first results filing for it is accepted by EDGAR. Results are due by [object Promise].Forecast this quarter

About the filer

CIK
949157
Tickers
CENX
Exchange
Nasdaq
SIC code
3334 Primary Production of Aluminum
Sector
Materials
Fiscal year ends
Dec 31
Incorporated in
DE
Filer category
Large accelerated filer

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 24, 2026, 15:29 ET. Listed shows no prices and gives no investment advice.