Century Aluminum Co (CENX) · Insider trading
What Century Aluminum's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$625.30M
9 insiders, 2% under a plan
Net, 12 months
−$625.30M
bought less sold
Latest filing
2026-06-17
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Glencore International AG10% owner | – | $599.06M | 2 | 2026-03-04 | 12,184,755 |
| Gary Jesse EDirector, President and CEO | – | $17.03M | 4 | 2026-03-16 | – |
| DeZee JohnEVP, GC and Secretary | – | $3.35M | 1 | 2026-02-23 | 97,647 |
| Gudlaugsson GunnarEVP - Global Operations | – | $2.80M | 2 | 2026-02-25 | 136,393 |
| Calloway Kenneth LSVP, Human Resources | – | $1.50M | 2 | 2026-03-12 | 24,902 |
| Hafberg Agust FSVP & Chief Commercial Officer | – | $1.44M | 2 | 2026-02-27 | 45,059 |
| Hoffman Robert FSVP, IT and CAO | – | $1.31M | 4 | 2026-03-11 | 56,643 |
| Aboud MattSVP, Strategy & Business Dev't | – | $1.07M | 3 | 2026-03-03 | 64,843 |
| Trpkovski Peter AEVP, CFO | – | $845,487 | 1 | 2026-03-25 | 64,125 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-03-25 | Trpkovski Peter AEVP, CFO | Sale | 16,739 | 50.51 | $845,487 | 64,125 | Form 4 |
| 2026-03-16 | Gary Jesse EDirector, President and CEO | Saleplanindirect | 150,000 | 55.47 | $8.32M | 142,580 | Form 4 |
| 2026-03-12 | Calloway Kenneth LSVP, Human Resources | Sale | 18,000 | 58.00 | $1.04M | 24,902 | Form 4 |
| 2026-03-11 | Hoffman Robert FSVP, IT and CAO | Sale | 10,529 | 56.51 | $594,994 | 56,643 | Form 4 |
| 2026-03-04 | Hoffman Robert FSVP, IT and CAO | Sale | 10,000 | 56.33 | $563,300 | 67,172 | Form 4 |
| 2026-03-04 | Glencore International AG10% ownerwith Glencore AG, Glencore plc | Sale | 6,315,245 | 51.75 | $326.81M | 12,184,755 | Form 4 |
| 2026-03-03 | Aboud MattSVP, Strategy & Business Dev't | Sale | 2,971 | 52.67 | $156,483 | 64,843 | Form 4 |
| 2026-03-02 | Aboud MattSVP, Strategy & Business Dev't | Sale | 12,126 | 52.50 | $636,615 | 67,814 | Form 4 |
| 2026-02-27 | Hafberg Agust FSVP & Chief Commercial Officer | Sale | 22,884 | 51.24 | $1.17M | 45,059 | Form 4 |
| 2026-02-25 | Gudlaugsson GunnarEVP - Global Operations | Sale | 43,000 | 54.10 | $2.33M | 136,393 | Form 4 |
| 2026-02-23 | DeZee JohnEVP, GC and Secretary | Sale | 66,000 | 50.72 | $3.35M | 97,647 | Form 4 |
| 2026-01-23 | Gary Jesse EDirector, President and CEO | Saleplanindirect | 150,000 | 48.19 | $7.23M | 292,580 | Form 4 |
| 2025-11-10 | Glencore International AG10% ownerwith Glencore AG, Glencore plc | Sale | 9,000,000 | 30.25 | $272.25M | 18,500,000 | Form 4 |
| 2025-09-26 | Hafberg Agust FSVP & Chief Commercial Officer | Sale | 9,493 | 27.91 | $264,950 | 55,260 | Form 4 |
| 2025-09-19 | Calloway Kenneth LSVP, Human Resources | Sale | 16,450 | 27.50 | $452,375 | 28,706 | Form 4 |
| 2025-08-12 | Aboud MattSVP, Strategy & Business Dev't | Sale | 12,027 | 23.27 | $279,868 | 62,589 | Form 4 |
| 2025-03-20 | Hoffman Robert FSVP, IT and CAO | Sale | 5,000 | 20.24 | $101,200 | 59,083 | Form 4 |
| 2025-03-14 | Hoffman Robert FSVP, IT and CAO | Sale | 2,500 | 19.99 | $49,975 | 64,083 | Form 4 |
| 2024-12-27 | Gary Jesse EDirector, President and CEO | Saleindirect | 50,000 | 18.48 | $924,000 | 753 | Form 4 |
| 2024-12-26 | Gary Jesse EDirector, President and CEO | Saleindirect | 29,243 | 18.97 | $554,740 | 50,753 | Form 4 |
| 2024-12-05 | Gudlaugsson GunnarEVP - Global Operations | Sale | 20,000 | 23.85 | $477,000 | 107,932 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
44 × grant or award36 × shares withheld for tax5 × conversion4 × gift
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-06-15 | Olivier Tamla ADirector | Grant or award A | +2,172 | – | 31,845 | Form 4 |
| 2026-06-15 | Bush Jennifer MaryDirector | Grant or award A | +2,172 | – | 49,044 | Form 4 |
| 2026-06-15 | Michelmore Andrew GDirector | Grant or award A | +2,172 | – | 91,261 | Form 4 |
| 2026-06-15 | Michelmore Andrew GDirector | Shares withheld for tax F | −652 | 54.55 | 90,609 | Form 4 |
| 2026-06-15 | Glasser ErrolDirector | Grant or award A | +2,172 | – | 120,869 | Form 4 |
| 2026-06-15 | Berntzen JarlDirector | Grant or award A | +2,172 | – | 211,123 | Form 4 |
| 2026-02-09 | Trpkovski Peter AEVP, CFO | Shares withheld for tax F | −4,240 | 54.36 | 80,864 | Form 4 |
| 2026-01-12 | Gary Jesse EDirector, President and CEO | Gift G | −314,611 | – | 277,227 | Form 4 |
| 2026-01-12 | Gary Jesse EDirector, President and CEO | Gift G | +314,611 | – | 442,580 | Form 4 |
| 2026-01-01 | Aboud MattSVP, Strategy & Business Dev't | Grant or award A | +5,529 | – | 79,940 | Form 4 |
| 2026-01-01 | Calloway Kenneth LSVP, Human Resources | Grant or award A | +5,238 | – | 42,902 | Form 4 |
| 2026-01-01 | DeZee JohnEVP, GC and Secretary | Grant or award A | +9,821 | – | 163,647 | Form 4 |
| 2026-01-01 | Hoffman Robert FSVP, IT and CAO | Grant or award A | +5,122 | – | 77,172 | Form 4 |
| 2026-01-01 | Trpkovski Peter AEVP, CFO and Treasurer | Grant or award A | +13,488 | – | 85,104 | Form 4 |
| 2026-01-01 | Hafberg Agust FSVP & Chief Commercial Officer | Grant or award A | +5,238 | – | 67,943 | Form 4 |
| 2026-01-01 | Gudlaugsson GunnarEVP - Global Operations | Grant or award A | +15,624 | – | 179,393 | Form 4 |
| 2026-01-01 | Gary Jesse EDirector, President and CEO | Grant or award A | +57,443 | – | 591,838 | Form 4 |
| 2025-12-31 | Aboud MattSVP, Strategy & Business Dev't | Grant or award A | +36,550 | – | 99,139 | Form 4 |
| 2025-12-31 | Aboud MattSVP, Strategy & Business Dev't | Shares withheld for tax F | −16,485 | 39.18 | 82,654 | Form 4 |
| 2025-12-31 | Aboud MattSVP, Strategy & Business Dev't | Shares withheld for tax F | −8,243 | 39.18 | 74,411 | Form 4 |
| 2025-12-31 | Calloway Kenneth LSVP, Human Resources | Grant or award A | +18,150 | – | 46,856 | Form 4 |
| 2025-12-31 | Calloway Kenneth LSVP, Human Resources | Shares withheld for tax F | −5,469 | 39.18 | 41,387 | Form 4 |
| 2025-12-31 | Calloway Kenneth LSVP, Human Resources | Shares withheld for tax F | −3,723 | 39.18 | 37,664 | Form 4 |
| 2025-12-31 | DeZee JohnEVP, GC and Secretary | Grant or award A | +54,042 | – | 186,960 | Form 4 |
| 2025-12-31 | DeZee JohnEVP, GC and Secretary | Shares withheld for tax F | −21,163 | 39.18 | 165,797 | Form 4 |
| 2025-12-31 | DeZee JohnEVP, GC and Secretary | Shares withheld for tax F | −11,971 | 39.18 | 153,826 | Form 4 |
| 2025-12-31 | Hoffman Robert FSVP, IT and CAO | Grant or award A | +31,650 | – | 90,733 | Form 4 |
| 2025-12-31 | Hoffman Robert FSVP, IT and CAO | Shares withheld for tax F | −12,455 | 39.18 | 78,278 | Form 4 |
| 2025-12-31 | Hoffman Robert FSVP, IT and CAO | Shares withheld for tax F | −6,228 | 39.18 | 72,050 | Form 4 |
| 2025-12-31 | Trpkovski Peter AEVP, CFO and Treasurer | Grant or award A | +18,260 | – | 83,751 | Form 4 |
| 2025-12-31 | Trpkovski Peter AEVP, CFO and Treasurer | Shares withheld for tax F | −8,090 | 39.18 | 75,661 | Form 4 |
| 2025-12-31 | Trpkovski Peter AEVP, CFO and Treasurer | Shares withheld for tax F | −4,045 | 39.18 | 71,616 | Form 4 |
| 2025-12-31 | Hafberg Agust FSVP & Chief Commercial Officer | Grant or award A | +30,878 | – | 86,138 | Form 4 |
| 2025-12-31 | Hafberg Agust FSVP & Chief Commercial Officer | Shares withheld for tax F | −15,622 | 39.18 | 70,516 | Form 4 |
| 2025-12-31 | Hafberg Agust FSVP & Chief Commercial Officer | Shares withheld for tax F | −7,811 | 39.18 | 62,705 | Form 4 |
| 2025-12-31 | Gudlaugsson GunnarEVP - Global Operations | Grant or award A | +82,794 | – | 226,598 | Form 4 |
| 2025-12-31 | Gudlaugsson GunnarEVP - Global Operations | Shares withheld for tax F | −41,886 | 39.18 | 184,712 | Form 4 |
| 2025-12-31 | Gudlaugsson GunnarEVP - Global Operations | Shares withheld for tax F | −20,943 | 39.18 | 163,769 | Form 4 |
| 2025-12-31 | Gary Jesse EDirector, President and CEO | Grant or award A | +439,090 | – | 805,237 | Form 4 |
| 2025-12-31 | Gary Jesse EDirector, President and CEO | Shares withheld for tax F | −203,131 | 39.18 | 602,106 | Form 4 |
| 2025-12-31 | Gary Jesse EDirector, President and CEO | Shares withheld for tax F | −67,711 | 39.18 | 534,395 | Form 4 |
| 2025-11-10 | Glencore International AG10% owner | Conversion C | +4,948,591 | – | 17,505,947 | Form 4 |
| 2025-09-30 | Glencore International AG10% owner | Conversion C | +2,848 | – | 12,557,356 | Form 4 |
| 2025-06-30 | Glencore International AG10% owner | Conversion C | +16,477 | – | 12,554,508 | Form 4 |
| 2025-06-16 | Berntzen JarlDirector | Grant or award A | +7,778 | – | 208,951 | Form 4 |
| 2025-06-16 | Bush Jennifer MaryDirector | Grant or award A | +7,778 | – | 46,872 | Form 4 |
| 2025-06-16 | Michelmore Andrew GDirector | Grant or award A | +7,778 | – | 91,422 | Form 4 |
| 2025-06-16 | Michelmore Andrew GDirector | Shares withheld for tax F | −2,333 | 17.36 | 89,089 | Form 4 |
| 2025-06-16 | Olivier Tamla ADirector | Grant or award A | +7,778 | – | 29,673 | Form 4 |
| 2025-06-16 | Glasser ErrolDirector | Grant or award A | +7,778 | – | 118,697 | Form 4 |
| 2025-03-31 | Glencore International AG10% owner | Conversion C | +3,593 | – | 12,538,031 | Form 4 |
| 2025-03-21 | Trpkovski Peter AEVP, CFO and Treasurer | Grant or award A | +12,455 | – | 65,491 | Form 4 |
| 2025-02-07 | Trpkovski Peter ASVP, Finance and Treasurer | Shares withheld for tax F | −4,501 | 18.69 | 53,036 | Form 4 |
| 2025-01-28 | Gary Jesse EDirector, President and CEO | Gift G | −127,216 | – | 366,147 | Form 4 |
| 2025-01-28 | Gary Jesse EDirector, President and CEO | Gift G | +127,216 | – | 127,969 | Form 4 |
| 2025-01-01 | Bialek Gerald CChief Financial Officer | Grant or award A | +17,534 | – | 100,620 | Form 4 |
| 2025-01-01 | Trpkovski Peter ASVP, Finance and Treasurer | Grant or award A | +6,046 | – | 57,537 | Form 4 |
| 2025-01-01 | Aboud MattSVP, Strategy & Business Dev't | Grant or award A | +8,935 | – | 74,616 | Form 4 |
| 2025-01-01 | Calloway Kenneth LSVP, Human Resources | Grant or award A | +7,787 | – | 45,156 | Form 4 |
| 2025-01-01 | DeZee JohnEVP, GC and Secretary | Grant or award A | +15,244 | – | 132,918 | Form 4 |
| 2025-01-01 | Hafberg Agust FSVP & Chief Commercial Officer | Grant or award A | +7,787 | – | 64,753 | Form 4 |
| 2025-01-01 | Gudlaugsson GunnarEVP - Global Operations | Grant or award A | +24,582 | – | 143,804 | Form 4 |
| 2025-01-01 | Gary Jesse EDirector, President and CEO | Grant or award A | +84,038 | – | 493,363 | Form 4 |
| 2025-01-01 | Hoffman Robert FSVP, IT and CAO | Grant or award A | +8,257 | – | 66,583 | Form 4 |
| 2024-12-31 | Trpkovski Peter ASVP, Finance and Treasurer | Grant or award A | +4,624 | – | 54,243 | Form 4 |
| 2024-12-31 | Trpkovski Peter ASVP, Finance and Treasurer | Shares withheld for tax F | −2,049 | 18.22 | 52,194 | Form 4 |
| 2024-12-31 | Trpkovski Peter ASVP, Finance and Treasurer | Shares withheld for tax F | −703 | 18.22 | 51,491 | Form 4 |
| 2024-12-31 | Aboud MattSVP, Strategy & Business Dev't | Grant or award A | +16,314 | – | 75,562 | Form 4 |
| 2024-12-31 | Aboud MattSVP, Strategy & Business Dev't | Shares withheld for tax F | −7,358 | 18.22 | 68,204 | Form 4 |
| 2024-12-31 | Aboud MattSVP, Strategy & Business Dev't | Shares withheld for tax F | −2,523 | 18.22 | 65,681 | Form 4 |
| 2024-12-31 | Calloway Kenneth LSVP, Human Resources | Grant or award A | +7,267 | – | 41,774 | Form 4 |
| 2024-12-31 | Calloway Kenneth LSVP, Human Resources | Shares withheld for tax F | −3,280 | 18.22 | 38,494 | Form 4 |
| 2024-12-31 | Calloway Kenneth LSVP, Human Resources | Shares withheld for tax F | −1,125 | 18.22 | 37,369 | Form 4 |
| 2024-12-31 | DeZee JohnEVP, GC and Secretary | Grant or award A | +26,036 | – | 127,919 | Form 4 |
| 2024-12-31 | DeZee JohnEVP, GC and Secretary | Shares withheld for tax F | −7,629 | 18.22 | 120,290 | Form 4 |
| 2024-12-31 | DeZee JohnEVP, GC and Secretary | Shares withheld for tax F | −2,616 | 18.22 | 117,674 | Form 4 |
| 2024-12-31 | Hafberg Agust FSVP & Chief Commercial Officer | Grant or award A | +14,304 | – | 66,682 | Form 4 |
| 2024-12-31 | Hafberg Agust FSVP & Chief Commercial Officer | Shares withheld for tax F | −7,235 | 18.22 | 59,447 | Form 4 |
| 2024-12-31 | Hafberg Agust FSVP & Chief Commercial Officer | Shares withheld for tax F | −2,481 | 18.22 | 56,966 | Form 4 |
| 2024-12-31 | Gudlaugsson GunnarEVP - Global Operations | Grant or award A | +35,199 | – | 143,131 | Form 4 |
| 2024-12-31 | Gudlaugsson GunnarEVP - Global Operations | Shares withheld for tax F | −17,804 | 18.22 | 125,327 | Form 4 |
| 2024-12-31 | Gudlaugsson GunnarEVP - Global Operations | Shares withheld for tax F | −6,105 | 18.22 | 119,222 | Form 4 |
| 2024-12-31 | Gary Jesse EDirector, President and CEO | Grant or award A | +185,848 | – | 510,505 | Form 4 |
| 2024-12-31 | Gary Jesse EDirector, President and CEO | Shares withheld for tax F | −82,331 | 18.22 | 428,174 | Form 4 |
| 2024-12-31 | Gary Jesse EDirector, President and CEO | Shares withheld for tax F | −18,849 | 18.22 | 409,325 | Form 4 |
| 2024-12-31 | Hoffman Robert FSVP, IT and CAO | Grant or award A | +13,723 | – | 65,579 | Form 4 |
| 2024-12-31 | Hoffman Robert FSVP, IT and CAO | Shares withheld for tax F | −5,401 | 18.22 | 60,178 | Form 4 |
| 2024-12-31 | Hoffman Robert FSVP, IT and CAO | Shares withheld for tax F | −1,852 | 18.22 | 58,326 | Form 4 |
| 2024-12-31 | Glencore International AG10% owner | Conversion C | +210,162 | – | 12,534,438 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.