Century Aluminum Company (CENX) Insider Trading
Over the last 6 months, 304 institutions increased and 246 reduced their position (13F).
Insider Activity
Sentiment
50/100
Buys (3m)
0
Sells (3m)
0
Net (3m)
$0
Insider trades by month Buys Sells
Aug
Sep
Nov
Jan
Feb
Mar
Context3-month price -28.4%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 17, 2026 | Michelmore Andrew Gdirector | Grant | 2,172 | — |
| Jun 17, 2026 | GLASSER ERROLdirector | Grant | 2,172 | — |
| Jun 17, 2026 | Bush Jennifer Marydirector | Grant | 2,172 | — |
| Jun 17, 2026 | Michelmore Andrew Gdirector | Tax | 652 | $54.55 |
| Jun 17, 2026 | Berntzen Jarldirector | Grant | 2,172 | — |
| Jun 17, 2026 | Olivier Tamla Adirector | Grant | 2,172 | — |
| Mar 27, 2026 | Trpkovski Peter Aofficer: EVP, CFO | Sell | 16,739 | $50.51 |
| Mar 17, 2026 | Gary Jesse Edirector, officer: President and CEO | Sell | 150,000 | $55.47 |
| Mar 13, 2026 | Calloway Kenneth Lofficer: SVP, Human Resources | Sell | 18,000 | $58.00 |
| Mar 13, 2026 | Hoffman Robert Fofficer: SVP, IT and CAO | Sell | 10,529 | $56.51 |
| Mar 6, 2026 | Hoffman Robert Fofficer: SVP, IT and CAO | Sell | 10,000 | $56.33 |
| Mar 4, 2026 | Aboud Mattofficer: SVP, Strategy & Business Dev't | Sell | 2,971 | $52.67 |
| Mar 4, 2026 | GLENCORE INTERNATIONAL AG10 percent owner | Sell | 6,315,245 | $51.75 |
| Mar 4, 2026 | Aboud Mattofficer: SVP, Strategy & Business Dev't | Sell | 12,126 | $52.50 |
| Feb 27, 2026 | Gudlaugsson Gunnarofficer: EVP - Global Operations | Sell | 43,000 | $54.10 |
| Feb 25, 2026 | DeZee Johnofficer: EVP, GC and Secretary | Sell | 66,000 | $50.72 |
| Feb 11, 2026 | Trpkovski Peter Aofficer: EVP, CFO | Tax | 4,240 | $54.36 |
| Jan 23, 2026 | Gary Jesse Edirector, officer: President and CEO | Sell | 150,000 | $48.19 |
| Jan 5, 2026 | Gary Jesse Edirector, officer: President and CEO | Grant | 57,443 | — |
| Jan 5, 2026 | Calloway Kenneth Lofficer: SVP, Human Resources | Grant | 5,238 | — |
| Jan 5, 2026 | Gudlaugsson Gunnarofficer: EVP - Global Operations | Grant | 82,794 | — |
| Jan 5, 2026 | Hoffman Robert Fofficer: SVP, IT and CAO | Grant | 31,650 | — |
| Jan 5, 2026 | DeZee Johnofficer: EVP, GC and Secretary | Grant | 9,821 | — |
| Jan 5, 2026 | DeZee Johnofficer: EVP, GC and Secretary | Tax | 21,163 | $39.18 |
| Jan 5, 2026 | Calloway Kenneth Lofficer: SVP, Human Resources | Tax | 3,723 | $39.18 |
| Jan 5, 2026 | Calloway Kenneth Lofficer: SVP, Human Resources | Grant | 18,150 | — |
| Jan 5, 2026 | Hafberg Agust Fofficer: SVP & Chief Commercial Officer | Tax | 7,811 | $39.18 |
| Jan 5, 2026 | Calloway Kenneth Lofficer: SVP, Human Resources | Tax | 5,469 | $39.18 |
| Jan 5, 2026 | Trpkovski Peter Aofficer: EVP, CFO and Treasurer | Grant | 13,488 | — |
| Jan 5, 2026 | Aboud Mattofficer: SVP, Strategy & Business Dev't | Grant | 36,550 | — |
Source: CENX SEC Form 4 filings, latest Jun 17, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their CENX positions over the last 6 months (SEC Form 13F).
Increased
304
New positions
194
Reduced
246
Sold out
59
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| Glencore plc | Unchanged | 29.7M | Jul 14, 2026 |
| GLENCORE PLC | Reduced | 29.7M | Apr 27, 2026 |
| BlackRock, Inc. | Increased | 10.3M | Aug 7, 2026 |
| BLACKROCK, INC. | Reduced | 9.0M | May 13, 2026 |
| STATE STREET CORP | Increased | 5.5M | Aug 7, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 4.8M | Aug 13, 2026 |
| STATE STREET CORP | Increased | 4.7M | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 4.2M | May 8, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 3.0M | Aug 13, 2026 |
| SOURCEROCK GROUP LLC | Reduced | 2.7M | May 15, 2026 |
| FMR LLC | Increased | 2.7M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 2.6M | May 15, 2026 |
| Invesco Ltd. | Increased | 2.4M | Aug 14, 2026 |
| Sourcerock Group LLC | Reduced | 2.3M | Aug 14, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 2.2M | Aug 11, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.