{
  "name": "Century Aluminum Co",
  "legal_name": "CENTURY ALUMINUM CO",
  "ticker": "CENX",
  "tickers": [
    "CENX"
  ],
  "cik": "0000949157",
  "page_url": "https://steadybase.io/company/century-aluminum-co/",
  "markdown_url": "https://steadybase.io/company/century-aluminum-co.md",
  "json_url": "https://steadybase.io/company/century-aluminum-co.json",
  "as_of": "2026-11-10",
  "last_filed": "2026-11-05",
  "industry": {
    "sic": "3334",
    "description": "Primary Production of  Aluminum"
  },
  "headquarters": {
    "city": "Chicago",
    "state": "IL",
    "country": "US"
  },
  "exchanges": [
    "Nasdaq"
  ],
  "fiscal_year_end": "December 31",
  "filer_category": "Large accelerated filer",
  "state_of_incorporation": "DE",
  "website": "centuryaluminum.com",
  "investor_relations_url": null,
  "linkedin_company_url": "https://www.linkedin.com/company/century-aluminum",
  "summary": {
    "text": "Century Aluminum Company is a global producer of primary aluminum and operates aluminum reduction facilities, or \"smelters,\" in the United States and Iceland. Aluminum is an internationally traded commodity, and its price is effectively determined on the London Metal Exchange (the \"LME\"), plus applicable regional and value-added product premiums. Our smelters produce standard-grade and value-added primary aluminum products. Our current annual production capacity was approximately 770,000 tonnes per year (\"tpy\") as of December 31, 2025.",
    "section": "Item 1. Business",
    "period_end": "2025-12-31",
    "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026013788/cenx-20251231.htm"
  },
  "key_facts": [
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      "key": "revenue",
      "label": "Revenue",
      "value": 2527900000,
      "unit": "USD",
      "period_start": "2025-01-01",
      "period_end": "2025-12-31",
      "basis": "filing_fact",
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      "filed": "2026-03-03",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026013788/0001628280-26-013788-index.html",
      "text": "Revenue: $2.5B for the fiscal year ended Dec 31, 2025 (10-K filed Mar 3, 2026)."
    },
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      "key": "operating_income",
      "label": "Operating income",
      "value": 158100000,
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      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026013788/0001628280-26-013788-index.html",
      "text": "Operating income: $158.1M for the fiscal year ended Dec 31, 2025 (10-K filed Mar 3, 2026)."
    },
    {
      "key": "net_income",
      "label": "Net income",
      "value": 41800000,
      "unit": "USD",
      "period_start": "2025-01-01",
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      "basis": "filing_fact",
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      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026013788/0001628280-26-013788-index.html",
      "text": "Net income: $41.8M for the fiscal year ended Dec 31, 2025 (10-K filed Mar 3, 2026)."
    },
    {
      "key": "sga",
      "label": "SG&A",
      "value": 79900000,
      "unit": "USD",
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      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026013788/0001628280-26-013788-index.html",
      "text": "SG&A: $79.9M for the fiscal year ended Dec 31, 2025 (10-K filed Mar 3, 2026)."
    },
    {
      "key": "employees",
      "label": "Employees",
      "value": 2906,
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      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026013788/cenx-20251231.htm",
      "text": "Employees: 2,906 as of Dec 31, 2025, as reported in an SEC filing."
    },
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      "period_end": "2026-11-02",
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      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026071033/0001628280-26-071033-index.html",
      "text": "Shares outstanding: 98,993,295 as of Nov 2, 2026 (10-Q filed Nov 5, 2026)."
    },
    {
      "key": "auditor",
      "label": "Auditor",
      "value": "Deloitte & Touche LLP",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026013788/cenx-20251231.htm",
      "text": "Auditor: Deloitte & Touche LLP, Chicago, Illinois, named in the latest 10-K."
    }
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        },
        {
          "item": "9.01",
          "label": "Financial statements and exhibits",
          "signal": "exhibits"
        }
      ],
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026009831/cenx-20260219.htm"
    },
    {
      "filed": "2026-02-02",
      "items": [
        {
          "item": "1.01",
          "label": "Entry into a material definitive agreement",
          "signal": "deal"
        },
        {
          "item": "2.01",
          "label": "Completion of acquisition or disposition of assets",
          "signal": "m_and_a"
        },
        {
          "item": "7.01",
          "label": "Regulation FD disclosure",
          "signal": "disclosure"
        },
        {
          "item": "9.01",
          "label": "Financial statements and exhibits",
          "signal": "exhibits"
        }
      ],
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000110465926009212/tm264772d1_8k.htm"
    },
    {
      "filed": "2025-11-06",
      "items": [
        {
          "item": "2.01",
          "label": "Completion of acquisition or disposition of assets",
          "signal": "m_and_a"
        },
        {
          "item": "9.01",
          "label": "Financial statements and exhibits",
          "signal": "exhibits"
        }
      ],
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828025050179/cenx-20251106.htm"
    },
    {
      "filed": "2025-10-22",
      "items": [
        {
          "item": "7.01",
          "label": "Regulation FD disclosure",
          "signal": "disclosure"
        },
        {
          "item": "9.01",
          "label": "Financial statements and exhibits",
          "signal": "exhibits"
        }
      ],
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000110465925101317/tm2529215d1_8k.htm"
    },
    {
      "filed": "2025-08-07",
      "items": [
        {
          "item": "2.02",
          "label": "Results of operations and financial condition (earnings release)",
          "signal": "earnings"
        },
        {
          "item": "9.01",
          "label": "Financial statements and exhibits",
          "signal": "exhibits"
        }
      ],
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828025038866/cenx-20250807.htm"
    }
  ],
  "insider_trades": [
    {
      "owner": "Peter A. Trpkovski",
      "role": "EVP, CFO",
      "action": "sold",
      "code": "S",
      "shares": 16739,
      "value_usd": 845487,
      "date": "2026-03-25",
      "filed": "2026-03-27",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026021790/0001628280-26-021790-index.htm"
    },
    {
      "owner": "Jesse E. Gary",
      "role": "President and CEO",
      "action": "sold",
      "code": "S",
      "shares": 150000,
      "value_usd": 8320500,
      "date": "2026-03-16",
      "filed": "2026-03-17",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026018929/0001628280-26-018929-index.htm"
    },
    {
      "owner": "Kenneth L. Calloway",
      "role": "SVP, Human Resources",
      "action": "sold",
      "code": "S",
      "shares": 18000,
      "value_usd": 1044000,
      "date": "2026-03-12",
      "filed": "2026-03-13",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026017779/0001628280-26-017779-index.htm"
    },
    {
      "owner": "Robert F. Hoffman",
      "role": "SVP, IT and CAO",
      "action": "sold",
      "code": "S",
      "shares": 10529,
      "value_usd": 594994,
      "date": "2026-03-11",
      "filed": "2026-03-13",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026017769/0001628280-26-017769-index.htm"
    },
    {
      "owner": "Robert F. Hoffman",
      "role": "SVP, IT and CAO",
      "action": "sold",
      "code": "S",
      "shares": 10000,
      "value_usd": 563300,
      "date": "2026-03-04",
      "filed": "2026-03-06",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026015724/0001628280-26-015724-index.htm"
    },
    {
      "owner": "Matt Aboud",
      "role": "SVP, Strategy & Business Dev't",
      "action": "sold",
      "code": "S",
      "shares": 15097,
      "value_usd": 793098,
      "date": "2026-03-03",
      "filed": "2026-03-04",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026014882/0001628280-26-014882-index.htm"
    },
    {
      "owner": "Agust F. Hafberg",
      "role": "SVP & Chief Commercial Officer",
      "action": "sold",
      "code": "S",
      "shares": 22884,
      "value_usd": 1172576,
      "date": "2026-02-27",
      "filed": "2026-03-03",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026013986/0001628280-26-013986-index.htm"
    },
    {
      "owner": "Gunnar Gudlaugsson",
      "role": "EVP - Global Operations",
      "action": "sold",
      "code": "S",
      "shares": 43000,
      "value_usd": 2326300,
      "date": "2026-02-25",
      "filed": "2026-02-27",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026012919/0001628280-26-012919-index.htm"
    },
    {
      "owner": "John DeZee",
      "role": "EVP, GC and Secretary",
      "action": "sold",
      "code": "S",
      "shares": 66000,
      "value_usd": 3347520,
      "date": "2026-02-23",
      "filed": "2026-02-25",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026011855/0001628280-26-011855-index.htm"
    },
    {
      "owner": "Jesse E. Gary",
      "role": "President and CEO",
      "action": "sold",
      "code": "S",
      "shares": 150000,
      "value_usd": 7228500,
      "date": "2026-01-23",
      "filed": "2026-01-23",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026003351/0001628280-26-003351-index.htm"
    },
    {
      "owner": "Agust F. Hafberg",
      "role": "SVP & Chief Commercial Officer",
      "action": "sold",
      "code": "S",
      "shares": 9493,
      "value_usd": 264950,
      "date": "2025-09-26",
      "filed": "2025-09-30",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828025043249/0001628280-25-043249-index.htm"
    },
    {
      "owner": "Kenneth L. Calloway",
      "role": "SVP, Human Resources",
      "action": "sold",
      "code": "S",
      "shares": 16450,
      "value_usd": 452375,
      "date": "2025-09-19",
      "filed": "2025-09-23",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828025042475/0001628280-25-042475-index.htm"
    },
    {
      "owner": "Matt Aboud",
      "role": "SVP, Strategy & Business Dev't",
      "action": "sold",
      "code": "S",
      "shares": 12027,
      "value_usd": 279868,
      "date": "2025-08-12",
      "filed": "2025-08-14",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000186340825000004/0001863408-25-000004-index.htm"
    }
  ],
  "quotes": [],
  "latest_filings": [
    {
      "form": "8-K",
      "filed": "2026-08-06",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026054300/cenx-20260806.htm"
    },
    {
      "form": "10-K",
      "filed": "2026-03-03",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026013788/cenx-20251231.htm"
    },
    {
      "form": "10-Q",
      "filed": "2026-08-06",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000162828026054308/cenx-20260630.htm"
    },
    {
      "form": "DEF 14A",
      "filed": "2026-04-24",
      "source_url": "https://www.sec.gov/Archives/edgar/data/949157/000155278126000269/e26009_cenx-def14a.htm"
    }
  ],
  "source": "SEC EDGAR filings, read by Steadybase. Every value links to the filing it came from."
}