| $126M | ||
| $85M | ||
| $34M | ||
| $33M | ||
| $32M | ||
| $27M |
Buys | $0 | 0 | 0 |
Sells | $625,300,203 | 13 | 100 |
| Aboud Matt | SVP, Strategy & Business Dev't | 0 | $0 | 2 | $793,098 | $-793,098 |
| Trpkovski Peter A | EVP, CFO | 0 | $0 | 1 | $845,487 | $-845,487 |
| Calloway Kenneth L | SVP, Human Resources | 0 | $0 | 1 | $1.04M | $-1.04M |
| Hoffman Robert F | SVP, IT and CAO | 0 | $0 | 2 | $1.16M | $-1.16M |
| Hafberg Agust F | SVP & Chief Commercial Officer | 0 | $0 | 1 | $1.17M | $-1.17M |
| Gudlaugsson Gunnar | EVP - Global Operations | 0 | $0 | 1 | $2.33M | $-2.33M |
| DeZee John | EVP, GC and Secretary | 0 | $0 | 1 | $3.35M | $-3.35M |
| Gary Jesse E | President and CEO | 0 | $0 | 2 | $15.55M | $-15.55M |
| GLENCORE INTERNATIONAL AG | 10 percent owner | 0 | $0 | 2 | $599.06M | $-599.06M |
Century Aluminum Company, along with its associated entities, manufactures both standard and specialized primary aluminum products across the United States and Iceland. The firm also possesses and manages a facility dedicated to carbon anode production, situated in the Netherlands. Founded in 1981, the company's corporate headquarters are located in Chicago, Illinois.
Over the last 12 months, insiders at Century Aluminum Company have bought $0 and sold $625.3M worth of Century Aluminum Company stock.
On average, over the past 5 years, insiders at Century Aluminum Company have bought $130,500 and sold $158.3M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 18,000 shares for transaction amount of $130,500 was made by Aboud Matt (SVP, Strategy & Business Dev't) on 2023‑05‑11.
| 2026-03-25 | Sale | Trpkovski Peter A | EVP, CFO | 16,739 0.017% | $50.51 | $845,487 | -7.21% | |
| 2026-03-16 | Sale | Gary Jesse E | President and CEO | 150,000 0.1511% | $55.47 | $8.32M | -16.05% | |
| 2026-03-12 | Sale | Calloway Kenneth L | SVP, Human Resources | 18,000 0.0183% | $58.00 | $1.04M | -18.94% | |
| 2026-03-11 | Sale | Hoffman Robert F | SVP, IT and CAO | 10,529 0.0104% | $56.51 | $594,994 | -19.44% | |
| 2026-03-04 | Sale | GLENCORE INTERNATIONAL AG | 10 percent owner | 6.32M 6.553% | $51.75 | $326.81M | -11.81% | |
| 2026-03-04 | Sale | Hoffman Robert F | SVP, IT and CAO | 10,000 0.0113% | $56.33 | $563,300 | -11.81% | |
| 2026-03-03 | Sale | Aboud Matt | SVP, Strategy & Business Dev't | 2,971 0.0033% | $52.67 | $156,483 | -10.96% | |
| 2026-03-02 | Sale | Aboud Matt | SVP, Strategy & Business Dev't | 12,126 0.0132% | $52.50 | $636,615 | -8.26% | |
| 2026-02-27 | Sale | Hafberg Agust F | SVP & Chief Commercial Officer | 22,884 0.0244% | $51.24 | $1.17M | -8.46% | |
| 2026-02-25 | Sale | Gudlaugsson Gunnar | EVP - Global Operations | 43,000 0.047% | $54.10 | $2.33M | -10.78% | |
| 2026-02-23 | Sale | DeZee John | EVP, GC and Secretary | 66,000 0.0692% | $50.72 | $3.35M | -8.53% | |
| 2026-01-23 | Sale | Gary Jesse E | President and CEO | 150,000 0.159% | $48.19 | $7.23M | -1.33% | |
| 2025-11-10 | Sale | GLENCORE INTERNATIONAL AG | 10 percent owner | 9M 8.8251% | $30.25 | $272.25M | +44.13% | |
| 2025-09-26 | Sale | Hafberg Agust F | SVP & Chief Commercial Officer | 9,493 0.0101% | $27.91 | $264,950 | +65.90% | |
| 2025-09-19 | Sale | Calloway Kenneth L | SVP, Human Resources | 16,450 0.0176% | $27.50 | $452,375 | +68.43% | |
| 2025-08-12 | Sale | Aboud Matt | SVP, Strategy & Business Dev't | 12,027 0.0133% | $23.27 | $279,868 | +94.76% | |
| 2025-03-20 | Sale | Hoffman Robert F | SVP, IT and CAO | 5,000 0.0055% | $20.24 | $101,200 | +30.23% | |
| 2025-03-14 | Sale | Hoffman Robert F | SVP, IT and CAO | 2,500 0.0027% | $19.99 | $49,975 | +29.85% | |
| 2024-12-27 | Sale | Gary Jesse E | President and CEO | 50,000 0.0541% | $18.48 | $924,000 | +10.37% | |
| 2024-12-26 | Sale | Gary Jesse E | President and CEO | 29,243 0.0314% | $18.97 | $554,740 | +7.00% |
| GLENCORE INTERNATIONAL AG | 10 percent owner | 12184755 12.3087% | $406.12M | 2 | 2 | <0.0001% |
| Aboud Matt | SVP, Strategy & Business Dev't | 64843 0.0655% | $2.16M | 1 | 4 | +24.44% |
| Glencore AG | director | 36924460 37.3% | $1.23B | 4 | 0 | +21.39% |
| GLENCORE INVESTMENT PTY LTD. | director | 28038839 28.324% | $934.53M | 4 | 0 | <0.0001% |
| BLESS MICHAEL A | President and CEO | 353989 0.3576% | $11.8M | 1 | 26 | <0.0001% |
| Berntzen Jarl | director | 116279 0.1175% | $3.88M | 1 | 0 | <0.0001% |
| Leatherberry William J | EVP, Gen. Counsel & Secretary | 49965 0.0505% | $1.67M | 1 | 2 | <0.0001% |
| Michelmore Andrew G | director | 43598 0.044% | $1.45M | 3 | 0 | +19.4% |
| FONTAINE JOHN C | director | 16862 0.017% | $562,010.46 | 1 | 3 | <0.0001% |
| OBRIEN JOHN P | director | 16047 0.0162% | $534,846.51 | 1 | 1 | <0.0001% |
| JONES PETER C | director | 3047 0.0031% | $101,556.51 | 1 | 0 | <0.0001% |
| Manning Catherine Z | director | 3049 0.0031% | $101,623.17 | 1 | 0 | <0.0001% |
$1,441,865 | 32 | 5.54% | $1.93B | |
Century Aluminum Company (CENX) | $720,562,079 | 21 | -13.70% | $3.3B |
$53,064 | 9 | 104.82% | $10.42B |
| Increased Positions | 217 | +85.1% | 14M | +14.93% |
| Decreased Positions | 116 | -45.49% | 10M | -10.68% |
| New Positions | 109 | New | 6M | New |
| Sold Out Positions | 26 | Sold Out | 618,250 | Sold Out |
| Total Postitions | 356 | +39.61% | 100M | +4.24% |
| Glencore Plc | $1.64M | 43.07% | 40.06M | +2,848 | +<0.01% | 2025-09-30 |
| Blackrock, Inc. | $414,639.00 | 10.89% | 10.13M | -31,317 | -0.31% | 2025-09-30 |
| Vanguard Group Inc | $239,316.00 | 6.29% | 5.85M | +75,657 | +1.31% | 2025-09-30 |
| State Street Corp | $172,677.00 | 4.54% | 4.22M | +552,270 | +15.07% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $125,327.00 | 3.29% | 3.06M | -10,750 | -0.35% | 2025-09-30 |
| Sourcerock Group Llc | $108,101.00 | 2.84% | 2.64M | +1M | +85.41% | 2025-09-30 |
| Citadel Advisors Llc | $61,643.00 | 1.62% | 1.51M | -416,961 | -21.69% | 2025-09-30 |
| Mirae Asset Global Etfs Holdings Ltd. | $59,666.00 | 1.57% | 1.46M | +27,999 | +1.96% | 2025-09-30 |
| Morgan Stanley | $58,641.00 | 1.54% | 1.43M | +584,394 | +68.92% | 2025-09-30 |
| Geode Capital Management, Llc | $54,000.00 | 1.42% | 1.32M | +18,305 | +1.41% | 2025-09-30 |