Over the last 12 months, Century Aluminum insiders reported no purchases and 14 sales totaling $626.0M across SEC Form 4 filings. 14% of those filings were made under pre-arranged 10b5-1 trading plans.
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Mar 25, 2026 | Trpkovski Peter AEVP, CFO · O | ▼ Sale | 16,739 | $50.51 | $845K | -20.7% | — |
| Mar 16, 2026 | Gary Jesse EPresident and CEO · O·D | ▼ Sale | 150,000 | $55.47 | $8.3M | -51.3% | plan · indirect |
| Mar 12, 2026 | Calloway Kenneth LSVP, Human Resources · O | ▼ Sale | 18,000 | $58 | $1.0M | -42% | — |
| Mar 11, 2026 | Hoffman Robert FSVP, IT and CAO · O | ▼ Sale | 10,529 | $56.51 | $595K | -15.7% | — |
| Mar 4, 2026 | Hoffman Robert FSVP, IT and CAO · O | ▼ Sale | 10,000 | $56.33 | $563K | -13% | — |
| Mar 4, 2026 | GLENCORE INTERNATIONAL AG10% | ▼ Sale | 6,315,245 | $51.75 | $326.8M | -34.1% | — |
| Mar 3, 2026 | Aboud MattSVP, Strategy & Business Dev't · O | ▼ Sale | 15,097 | $52.53 | $793K | -18.9% | 2 tranches |
| Feb 27, 2026 | Hafberg Agust FSVP & Chief Commercial Officer · O | ▼ Sale | 22,884 | $51.24 | $1.2M | -33.7% | — |
| Feb 25, 2026 | Gudlaugsson GunnarEVP - Global Operations · O | ▼ Sale | 43,000 | $54.1 | $2.3M | -24% | — |
| Feb 23, 2026 | DeZee JohnEVP, GC and Secretary · O | ▼ Sale | 66,000 | $50.72 | $3.3M | -40.3% | — |
| Jan 23, 2026 | Gary Jesse EPresident and CEO · O·D | ▼ Sale | 150,000 | $48.19 | $7.2M | -33.9% | plan · indirect |
| Nov 10, 2025 | GLENCORE INTERNATIONAL AG10% | ▼ Sale | 9,000,000 | $30.25 | $272.3M | -32.7% | — |
| Sep 26, 2025 | Hafberg Agust FSVP & Chief Commercial Officer · O | ▼ Sale | 9,493 | $27.91 | $265K | -14.7% | — |
| Sep 19, 2025 | Calloway Kenneth LSVP, Human Resources · O | ▼ Sale | 16,450 | $27.5 | $452K | -36.4% | — |
| Aug 12, 2025 | Aboud MattSVP, Strategy & Business Dev't · O | ▼ Sale | 12,027 | $23.27 | $280K | -16.1% | — |
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Century Aluminum filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $CENX feed.