10x Insights
Loading account…
Companies / Materials / Century Aluminum Company
CENX

Century Aluminum Company

MaterialsPrimary Metals
Ticker CENXCHICAGO, ILFiscal year ends DecemberBook value per share $16.26Diluted shares 105.3M

Century Aluminum Company (Nasdaq: CENX) produces primary aluminum at smelters in the United States and Iceland, supplying standard-grade metal and value-added products such as billet, slab, foundry alloy and molten metal to aluminum customers. It also holds a 55% interest in Jamalco, a Jamaican bauxite mining and… From the company’s description.

In fiscal 2025, Century Aluminum Company reported revenue of $2.53B, up 13.9% from fiscal 2024, and net income of $15.80M. Its operating margin was 6.3%, and operations generated $185.00M in cash. Over the twelve months to Sep 30, 2026, revenue was $3.00B.

Fiscal year 2025 · ends 12-31Changes are against fiscal 2024The amber dot is the latest twelve months, to 2026-09-30
Sales & profitability
$2.53BFY2025
+13.9% year over year
Last 12 mo $3.00B
6.25%FY2025
+0.8 percentage points
Last 12 mo 30.40%
$15.80MFY2025
−95.1% year over year
Last 12 mo $861.70M
5.19%FY2025
−43.3 percentage points
Last 12 mo 52.06%
Cash & financing
$185.00MFY2025
+852.0% year over year
Last 12 mo $733.70M
$84.80MFY2025
+179.3% year over year
Last 12 mo $526.40M
0.60FY2025
Was 0.76× a year earlier
Last 12 mo 0.28
95.3MFY2025
−3.2% year over year
Last 12 mo 105.3M

Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.

What Century Aluminum Company does

In the company’s own words

Century Aluminum Company (Nasdaq: CENX) produces primary aluminum at smelters in the United States and Iceland, supplying standard-grade metal and value-added products such as billet, slab, foundry alloy and molten metal to aluminum customers. It also holds a 55% interest in Jamalco, a Jamaican bauxite mining and alumina refining joint venture, and operates a carbon-anode facility in the Netherlands that primarily serves its Icelandic smelter. The company reports one operating and reportable segment. Its Natur-Al brand covers low-carbon aluminum produced at Grundartangi. In 2025, Century produced approximately 638,000 tonnes of primary aluminum and had annual smelting capacity of approximately 770,000 tonnes; it employed 2,906 people at year-end. The company’s history includes its 2023 acquisition of the Jamalco interest, adding upstream bauxite and alumina operations to its smelting business. It also entered a joint development agreement for a proposed Oklahoma smelter with Emirates Global Aluminium in 2026. Its website is www.centuryaluminum.com.

Company details
Sector
Materials
Industry (SIC)
Primary Metals
Headquarters
CHICAGO, IL
Fiscal year end
December
CIK
949157
SIC
3334

Financial performance, year by year

Fiscal 2011–2025 · USD
$-577.28M$397.31M$1.37B$2.35B$3.32B201120122013201420152016201720182019202020212022202320242025Last 12 moLast 12 monthsLast 12 months

The full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.

Ownership

Who owns Century Aluminum Company — and what changed

Funds as of 2026Q2 · superinvestors as of 2026-06-30

354
funds hold it
0 of 35
superinvestors hold it
$1.69B
held by funds, at market
33.0%
of shares held by funds
2
bond issues held by funds

Largest fund holders · Century Aluminum Company’s weight in each

iShares Core S&P Small-Cap ETF
IJR · iShares Trust
0.14%of fund net assets
3.28%of fund net assets
VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.00%of fund net assets
Invesco Discovery Fund
AIM Counselor Series Trust (Invesco Counselor Series Trust)
—of fund net assets
iShares Russell 2000 ETF
IWM · iShares Trust
0.10%of fund net assets

Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.

Century Aluminum Company’s bonds, as funds hold them

Funds report holding 2 issues of Century Aluminum Company’s debt, $176.80M at market value — what funds hold, not the company’s total debt. Weighted-average coupon 6.34%, maturing 2028 to 2032.

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.

Connected research

Put this business in context.

Compare this company with peers, find it in your funds and follow its financial history with your connected AI:

  • “How do Century Aluminum Company and its peers compare on margins and cash generation over ten years?”
  • “Where did five years of Century Aluminum Company's earnings go — cash, debt, buybacks, reinvestment?”
  • “What changed in Century Aluminum Company's last four quarterly filings that the numbers alone won't show?”
See how it works →All research tools with a subscription. Use your own AI account.