Century Aluminum Company (CENX)
Basic Materials
Aluminum
44.80 $
-0.2%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Century Aluminum Company (CENX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 69.3% of the shares are freely tradable; institutional investors hold 74.5%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
74.5%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
30.9%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
69.3%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
14.2%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
99Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Glencore PLC | 30.00 | 29,690,702 | +0.0 | 06/30/2026 |
| BlackRock Inc | 9.10 | 9,010,379 | -5.0 | 03/31/2026 |
| State Street Corp | 4.72 | 4,667,540 | +8.7 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 4.29 | 4,241,557 | +0.0 | 03/31/2026 |
| Sourcerock Group LLC | 2.72 | 2,687,249 | -25.8 | 03/31/2026 |
| FMR Inc | 2.69 | 2,660,054 | +30,454.3 | 03/31/2026 |
| Vanguard Capital Management, LLC | 2.61 | 2,586,107 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 3.48 | 3,441,488 | +0.0 | 07/28/2026 |
| Stt Strt®SPDR®S&P®Mtls &MngETF | 2.90 | 2,868,724 | +0.5 | 07/28/2026 |
| Vanguard Morn Total Stk Mkt Idx Investor | 2.22 | 2,199,182 | +16.0 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.