Century Aluminum Company
A global producer of primary aluminum, Century Aluminum runs smelters in the U.S. and Iceland and holds a majority stake in a Jamaican bauxite and alumina joint venture. Founded in 1995 to take over aluminum assets from commodities giant Glencore, the company was created partly to shake off the stigma of Marc Rich, the notorious trader who secretly controlled its Ravenswood, West Virginia smelter. Its Icelandic plant, powered by renewable energy, produces a low-carbon line called Natur-Al™.
Sold 15.32M
Granted 1.32M · Sold 677.0K
Granted 41.2K
Granted 286.7K · Sold 63.0K
Granted 41.2K
Granted 63.5K · Sold 12.9K
Granted 100.6K
Granted 197.9K · Sold 81.3K
Granted 41.2K
Granted 47.6K · Sold 16.3K
Granted 110.6K · Bought 18.0K · Sold 30.9K
Granted 66.7K · Sold 30.6K
Granted 123.1K · Sold 43.5K
Granted 49.0K
Granted 58.2K · Sold 32.4K
Granted 31.8K
Granted 38.4K · Sold 34.5K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Glencore International Ag +2 co-filers10% owner · 18 transactions | — | 60.75M | — | — | 15.32M |
| Gary Jesse EPresident and CEO, Director · 48 transactions | +56% | 989.6K | 1.32M | — | 677.0K |
| Berntzen JarlDirector · 5 transactions | +24.2% | 211.1K | 41.2K | — | — |
| Gudlaugsson GunnarEVP - Global Operations · 22 transactions | +402.6% | 136.4K | 286.7K | — | 63.0K |
| Glasser ErrolDirector · 5 transactions | +51.7% | 120.9K | 41.2K | — | — |
| Conti Craig CEVP & Chief Financial Officer · 5 transactions | +19.6% | 117.0Kas of Mar 2022 | 63.5K | — | 12.9K |
| Bialek Gerald CChief Financial Officer · 4 transactions | — | 100.6Kas of Jan 2025 | 100.6K | — | — |
| DeZee JohnEVP, GC and Secretary · 22 transactions | +132.7% | 97.6K | 197.9K | — | 81.3K |
| Michelmore Andrew GDirector · 10 transactions | +41.4% | 90.6K | 41.2K | — | — |
| Harrison MichelleSr. VP Finance & Treasurer · 9 transactions | — | 81.7Kas of Jan 2023 | 47.6K | — | 16.3K |
| Aboud MattSVP, Strategy & Business Dev't · 19 transactions | +1248.4% | 64.8K | 110.6K | 18.0K | 30.9K |
| Trpkovski Peter AEVP, CFO · 16 transactions | — | 64.1K | 66.7K | — | 30.6K |
| Hoffman Robert FSVP, IT and CAO · 27 transactions | +541.8% | 56.7K | 123.1K | — | 43.5K |
| Bush Jennifer MaryDirector · 6 transactions | — | 49.0K | 49.0K | — | — |
| Hafberg Agust FSVP & Chief Commercial Officer · 10 transactions | — | 45.1K | 58.2K | — | 32.4K |
| Olivier Tamla ADirector · 4 transactions | — | 31.8K | 31.8K | — | — |
| Calloway Kenneth LSVP, Human Resources · 10 transactions | — | 24.9K | 38.4K | — | 34.5K |
| Givolon Ltd +3 co-filers10% owner · 1 transaction | — | 0as of Dec 2022 | — | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: -16.32M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.