Century Aluminum (CENX)
Smelts primary aluminum and casts value-added products across the United States and Iceland.
$39.39
After hours−0.01 (−0.03%)
At close$39.40(+0.77%)
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13F · 13D/G · Form 4
| Institutions | ≈ 102.91% | 101.87M shares | |
|---|---|---|---|
| 440 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 1.53% | 1.51M shares | |
| 14 holders · as of Jun 17, 2026 | |||
| Strategic holders | 29.99% | 29.69M shares | |
| 1 holder · as of Mar 4, 2026 | |||
| Adds to | 134.43% | ||
98.99M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 134.43%; nothing is left for Other.
13F, as of Jun 30, 2026
440 holders · 101.87M shares · 88 new positions · 263 increased · 114 reduced · 62 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Glencore PLC | 29.69M | 29.99% | 0 | Jul 14, 2026 |
| BlackRock, Inc. | 10.30M | 10.41% | +1.29M | Aug 7, 2026 |
| State Street Corp | 5.54M | 5.60% | +875.2K | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 4.77M | 4.82% | +532.2K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 2.97M | 3.00% | +386.4K | Aug 13, 2026 |
| Invesco Ltd. | 2.42M | 2.44% | +341.3K | Aug 14, 2026 |
| Sourcerock Group LLC | 2.27M | 2.29% | −421.2K | Aug 14, 2026 |
| Dimensional Fund Advisors LP | 2.21M | 2.23% | +20.6K | Aug 11, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Glencore plcincl. Glencore AG, Glencore International AG | 29.99% | 29.69M | 13D | Mar 4, 2026 |
| BlackRock, Inc. | 8.20% | 8.14M | 13G | Apr 24, 2026 |
| State Street Corporation | 5.60% | 5.54M | 13G | Aug 7, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Mar 25, 2026 | Peter A. Trpkovskiofficer: EVP, CFO | Sale | 16,739 | $50.51 | 64,125 |
| Mar 16, 2026 | Jesse E. Garydirector, officer: President and CEO | Sale | 150,000 | $55.47 | 142,580 |
| Mar 11, 2026 | Robert F. Hoffmanofficer: SVP, IT and CAO | Sale | 10,529 | $56.51 | 56,643 |
| Mar 12, 2026 | Kenneth L. Callowayofficer: SVP, Human Resources | Sale | 18,000 | $58.00 | 24,902 |
| Mar 4, 2026 | Robert F. Hoffmanofficer: SVP, IT and CAO | Sale | 10,000 | $56.33 | 67,172 |
| Mar 4, 2026 | Glencore International AG10 percent owner | Sale | 6,315,245 | $51.75 | 12,184,755 |
| Mar 3, 2026 | Matt Aboudofficer: SVP, Strategy & Business Dev't | Sale | 2,971 | $52.67 | 64,843 |
| Mar 2, 2026 | Matt Aboudofficer: SVP, Strategy & Business Dev't | Sale | 12,126 | $52.50 | 67,814 |
| Feb 27, 2026 | Agust F. Hafbergofficer: SVP & Chief Commercial Officer | Sale | 22,884 | $51.24 | 45,059 |
| Feb 25, 2026 | Gunnar Gudlaugssonofficer: EVP - Global Operations | Sale | 43,000 | $54.10 | 136,393 |
House and Senate disclosures
Not reported.