Owner · Company
Century Aluminum Company
Century Aluminum Company is a company in the United States. It has one subsidiary in the data, linked to 1 asset or right. 414 institutional managers reported $4.82 bn of its shares on 13F at 30 Jun 2026; the largest was Glencore plc.
Group
Parent company
Century Aluminum Company reports no parent company: no known owner (GLEIF LEI).
Subsidiaries
1 company under Century Aluminum Company, direct and through other subsidiaries.
| Subsidiary | Held through | Share | Assets and rights |
|---|---|---|---|
| Norðurál Grundartangi | Direct | — | 1 |
Subsidiaries' portfolio
1 asset or right across the subsidiaries, each counted once. This total is apart from the portfolio above.
- CO2 emitter1
Institutional shareholders
Managers that reported $100 m or more of Century Aluminum Company's shares, or 1% or more of them, on Form 13F at 30 Jun 2026. 414 managers reported holdings in all.
| Manager | Value | Shares | Of shares outstanding |
|---|---|---|---|
| Glencore plc | $1.37 bn | 29,690,702 | — |
| BlackRock | $474 m | 10,304,905 | — |
| State Street Corporation | $255 m | 5,542,720 | — |
| Vanguard Portfolio Management, LLC | $220 m | 4,773,720 | — |
| Assenagon Asset Management S.A. | $141 m | 3,062,334 | — |
| Vanguard Capital Management, LLC | $137 m | 2,972,532 | — |
| Invesco | $111 m | 2,417,794 | — |
| Sourcerock Group LLC | $104 m | 2,266,085 | — |
| Dimensional Fund Advisors | $102 m | 2,211,502 | — |
Facts
| Fact | Value | Source |
|---|---|---|
| Location | United States | GLEIF LEI · record · CC0 1.0 · checked 25 Oct 2026 |
| Location | Illinois | SEC EDGAR · record · Public domain · checked 24 Oct 2026 |
| LEI | 549300U5ODNGEYWKSW73 | GLEIF LEI · record · CC0 1.0 · checked 25 Oct 2026 Rare Context entity resolution · record · CC0 1.0 · checked 25 Oct 2026 |
| SEC CIK | 0000949157 | SEC EDGAR · record · Public domain · checked 24 Oct 2026 |
| Ticker | CENX (on Nasdaq) | SEC EDGAR · Public domain · checked 24 Oct 2026 |
| Company number | 908570 | GLEIF LEI · record · CC0 1.0 · checked 25 Oct 2026 |
Also recorded as
Sources name Century Aluminum Company under 2 records; this page joins them. Links to any of them lead here.
| Name in the source | Identifier | Source |
|---|---|---|
| CENTURY ALUMINUM COMPANY | party:lei:549300U5ODNGEYWKSW73 | GLEIF LEI |
| CENTURY ALUMINUM CO | party:sec-cik:0000949157 | SEC 13F data sets |
Research on Century Aluminum Company.Its full portfolio, its parent companies, and an introduction to the people who decide on buying and selling.
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- GLEIF LEI. GLEIF LEI, CC0 1.0.
- Rare Context entity resolution. Rare Context entity resolution, CC0 1.0.
- U.S. Securities and Exchange Commission. SEC 13F data sets, Public domain.
- U.S. Securities and Exchange Commission. SEC EDGAR, Public domain.