# CENTURY ALUM CO (CENX) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 156431108
Page URL: https://superinvestorclub.com/stock/CENX
Last updated: 2026-08-29T13:47:06.843Z

## Summary

As of the most recent 13F filing period, CENTURY ALUM CO (CENX) is held by 2 tracked superinvestors with an aggregate position value of $55.1M representing 0724720473928 shares.

## Top institutional holders (2)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [First Eagle](https://superinvestorclub.com/manager/21222) | First Eagle Investment Management | 724720 | $33.3M | 0.03% | 2026-06-30 |
| 2 | [Ray Dalio](https://superinvestorclub.com/manager/6) | Bridgewater Associates | 473928 | $21.8M | 0.09% | 2026-06-30 |

## Ownership history (quarter-over-quarter)

- 2023-06-30: 1 holders, $3.6M aggregate, 0411190 shares
- 2023-09-30: 1 holders, $5.7M aggregate, 0791514 shares
- 2023-12-31: 1 holders, $10.5M aggregate, 0867514 shares
- 2024-03-31: 2 holders, $15.1M aggregate, 0833314146445 shares
- 2024-06-30: 2 holders, $13.9M aggregate, 075331474501 shares
- 2024-09-30: 2 holders, $14.3M aggregate, 0631314247404 shares
- 2024-12-31: 2 holders, $15.7M aggregate, 0431279428756 shares
- 2025-03-31: 2 holders, $8.1M aggregate, 036505673514 shares
- 2025-06-30: 1 holders, $6.1M aggregate, 0338056 shares
- 2025-09-30: 1 holders, $10.0M aggregate, 0340153 shares
- 2025-12-31: 2 holders, $22.5M aggregate, 0301612271798 shares
- 2026-03-31: 2 holders, $52.6M aggregate, 0732517163087 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "CENTURY ALUM CO (CENX) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/CENX), aggregating SEC 13F, Form 4, and congressional disclosures."