Century Aluminum Co
CENX- Exchange
- Nasdaq
- Industry
- Primary Production of Aluminum
- SEC CIK
- 0000949157
No open-market purchases or sales by Century Aluminum Co insiders were filed in the last 90 days; 416 institutions reported holding it in 13F filings for Q2 2026, worth $5.04B in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Century Aluminum Co insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Century Aluminum Co, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Glasser Errol | Director | 120,869 | Jun 17, 2026 | 1 |
| Berntzen Jarl | Director | 211,123 | Jun 17, 2026 | 1 |
| Michelmore Andrew G | Director | 90,609 | Jun 17, 2026 | 1 |
| Bush Jennifer Mary | Director | 49,044 | Jun 17, 2026 | 1 |
| Olivier Tamla A | Director | 31,845 | Jun 17, 2026 | 1 |
| Trpkovski Peter A | EVP, CFO | 64,125 | Mar 27, 2026 | 3 |
| Gary Jesse E | President and CEO | 142,580Indirect | Mar 17, 2026 | 3 |
| Hoffman Robert F | SVP, IT and CAO | 56,643 | Mar 13, 2026 | 3 |
| Calloway Kenneth L | SVP, Human Resources | 24,902 | Mar 13, 2026 | 2 |
| Glencore International AG | 10% Owner | 12,184,755 | Mar 4, 2026 | 3 |
| Glencore AG | 10% Owner | 12,184,755 | Mar 4, 2026 | 3 |
| Glencore plc | 10% Owner | 12,184,755 | Mar 4, 2026 | 3 |
| Aboud Matt | SVP, Strategy & Business Dev't | 64,843 | Mar 4, 2026 | 2 |
| Hafberg Agust F | SVP & Chief Commercial Officer | 45,059 | Mar 3, 2026 | 3 |
| Gudlaugsson Gunnar | EVP - Global Operations | 136,393 | Feb 27, 2026 | 2 |
| DeZee John | EVP, GC and Secretary | 97,647 | Feb 25, 2026 | 2 |
| Bialek Gerald C | Chief Financial Officer | 100,620 | Jan 3, 2025 | 0 |
| Harrison Michelle | Sr. VP Finance & Treasurer | 80,947 | Jan 4, 2023 | 0 |
| Ryfold Trust | 10% Owner | 0Indirect | Dec 16, 2022 | 0 |
| Givolon Ltd | 10% Owner | 0Indirect | Dec 16, 2022 | 0 |
| Ryfold Ltd | 10% Owner | 0Indirect | Dec 16, 2022 | 0 |
| Ocorian Ltd | 10% Owner | 0Indirect | Dec 16, 2022 | 0 |
| Conti Craig C | EVP & Chief Financial Officer | 117,018 | Mar 1, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Mar 27, 2026 (view filing) | Mar 25 | 2 days | Trpkovski Peter AEVP, CFO | SSale | −16.7K | $50.51 | −$845.5K | −20.7%64.1K after | |
| Mar 17, 2026 (view filing) | Mar 16 | 1 day | Gary Jesse EPresident and CEO | SSale | −150.0K | $55.47 | −$8.32M | −51.3%142.6K after | 10b5-1 |
| Mar 13, 2026 (view filing) | Mar 12 | 1 day | Calloway Kenneth LSVP, Human Resources | SSale | −18.0K | $58.00 | −$1.04M | −42.0%24.9K after | |
| Mar 13, 2026 (view filing) | Mar 11 | 2 days | Hoffman Robert FSVP, IT and CAO | SSale | −10.5K | $56.51 | −$595.0K | −15.7%56.6K after | |
| Mar 6, 2026 (view filing) | Mar 4 | 2 days | Hoffman Robert FSVP, IT and CAO | SSale | −10.0K | $56.33 | −$563.3K | −13.0%67.2K after | |
| Mar 4, 2026 (view filing)4:53 PM ET | Mar 4 | Same day | Glencore International AG and 2 others10% Owner | SSale | −6.32M | $51.75 | −$326.8M | −34.1%12.2M after | |
| Mar 4, 2026 (view filing) | Mar 2-3 | 2 days | Aboud MattSVP, Strategy & Business Dev't | SSale | −15.1K | $52.53 | −$793.1K | −18.9%64.8K after | 2 lots |
| Mar 3, 2026 (view filing) | Feb 27 | 4 days | Hafberg Agust FSVP & Chief Commercial Officer | SSale | −22.9K | $51.24 | −$1.17M | −33.7%45.1K after | |
| Feb 27, 2026 (view filing) | Feb 25 | 2 days | Gudlaugsson GunnarEVP - Global Operations | SSale | −43.0K | $54.10 | −$2.33M | −24.0%136.4K after | |
| Feb 25, 2026 (view filing) | Feb 23 | 2 days | DeZee JohnEVP, GC and Secretary | SSale | −66.0K | $50.72 | −$3.35M | −40.3%97.6K after | |
| Jan 23, 2026 (view filing) | Jan 23 | Same day | Gary Jesse EPresident and CEO | SSale | −150.0K | $48.19 | −$7.23M | −33.9%292.6K after | 10b5-1 |
| Nov 13, 2025 (view filing)5:59 PM ET | Nov 10 | 3 days | Glencore International AG and 2 others10% Owner | SSale | −9.00M | $30.25 | −$272.3M | −32.7%18.5M after | |
| Sep 30, 2025 (view filing) | Sep 26 | 4 days | Hafberg Agust FSVP & Chief Commercial Officer | SSale | −9.49K | $27.91 | −$264.9K | −14.7%55.3K after | |
| Sep 23, 2025 (view filing) | Sep 19 | 4 days | Calloway Kenneth LSVP, Human Resources | SSale | −16.4K | $27.50 | −$452.4K | −36.4%28.7K after | |
| Aug 14, 2025 (view filing) | Aug 12 | 2 days | Aboud MattSVP, Strategy & Business Dev't | SSale | −12.0K | $23.27 | −$279.9K | −16.1%62.6K after | |
| Mar 24, 2025 (view filing) | Mar 20 | 4 days | Hoffman Robert FSVP, IT and CAO | SSale | −5.00K | $20.24 | −$101.2K | −7.8%59.1K after | |
| Mar 18, 2025 (view filing) | Mar 14 | 4 days | Hoffman Robert FSVP, IT and CAO | SSale | −2.50K | $19.99 | −$50.0K | −3.8%64.1K after | |
| Dec 30, 2024 (view filing) | Dec 26-27 | 4 days | Gary Jesse EPresident and CEO | SSale | −79.2K | $18.66 | −$1.48M | −99.1%753 after | 2 lots |
| Dec 9, 2024 (view filing) | Dec 5 | 4 days | Gudlaugsson GunnarEVP - Global Operations | SSale | −20.0K | $23.85 | −$477.0K | −15.6%107.9K after | |
| Jun 28, 2024 (view filing) | Jun 26 | 2 days | Gary Jesse EPresident and CEO | SSale | −60.0K | $16.21 | −$972.6K | −49.0%62.4K after | |
| Mar 6, 2024 (view filing) | Mar 4 | 2 days | Aboud MattSVP, Strategy & Business Dev't | SSale | −3.77K | $10.61 | −$40.0K | −6.0%59.2K after | |
| Jan 2, 2024 (view filing) | Dec 28, 2023 | 5 days | Trpkovski Peter ASVP, Finance and Treasurer | SSale | −13.9K | $12.32 | −$171.3K | −24.9%42.0K after | |
| Dec 28, 2023 (view filing) | Dec 26-27 | 2 days | Gary Jesse EPresident and CEO | SSale | −138.2K | $12.59 | −$1.74M | −64.4%76.4K after | 2 lots |
| Dec 22, 2023 (view filing) | Dec 20-21 | 2 days | Hoffman Robert FVP, IT and CAO | SSale | −12.0K | $12.06 | −$144.7K | −23.7%38.6K after | 2 lots |
| May 15, 2023 (view filing) | May 11 | 4 days | Aboud MattSVP, Strategy & Business Dev't | PPurchase | +18.0K | $7.25 | +$130.5K | +62.8%46.7K after | |
| Aug 16, 2022 (view filing) | Aug 12-15 | 4 days | Gary Jesse EPresident and CEO | SSale | −99.6K | $9.33 | −$929.2K | −60.7%64.4K after | 2 lots |
| Mar 22, 2022 (view filing) | Mar 21 | 1 day | DeZee JohnEVP and General Counsel | SSale | −15.3K | $27.64 | −$422.5K | −25.2%45.5K after | |
| Mar 8, 2022 (view filing) | Mar 4 | 4 days | Hoffman Robert FSee Remarks | SSale | −3.48K | $29.19 | −$101.6K | −9.7%32.4K after | |
| Mar 1, 2022 (view filing) | Mar 1 | Same day | Conti Craig CEVP & Chief Financial Officer | SSale | −12.9K | $25.69 | −$331.9K | −9.9%117.0K after | |
| Mar 1, 2022 (view filing) | Feb 28 | 1 day | Harrison MichelleSr. VP Finance & Treasurer | SSale | −16.3K | $23.22 | −$378.1K | −19.8%66.0K after |