Hafberg Agust F (CIK 2049924) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-03). Recent activity: Sell CENX (22,884 shares), Buy CENX (5,238 shares), Buy CENX (30,878 shares), Sell CENX (15,622 shares), Sell CENX (7,811 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-03 | CENTURY ALUMINUM CO (CENX) | SVP & Chief Commercial Officer | Sell | 22,884 | $1.2M |
| 2026-01-05 | CENTURY ALUMINUM CO (CENX) | SVP & Chief Commercial Officer | Buy | 5,238 | $0 |
| 2026-01-05 | CENTURY ALUMINUM CO (CENX) | SVP & Chief Commercial Officer | Buy | 30,878 | $0 |
| 2026-01-05 | CENTURY ALUMINUM CO (CENX) | SVP & Chief Commercial Officer | Sell | 15,622 | $612,070 |
| 2026-01-05 | CENTURY ALUMINUM CO (CENX) | SVP & Chief Commercial Officer | Sell | 7,811 | $306,035 |
| 2025-09-30 | CENTURY ALUMINUM CO (CENX) | SVP & Chief Commercial Officer | Sell | 9,493 | $264,950 |
Source: SEC Form 4 filings · as of 2026-03-03