Key facts
- This page summarizes GLENCORE INTERNATIONAL AG's Form 4 filing for CENTURY ALUMINUM CO (CENX).
- 1 reported transaction and 0 derivative rows are listed below.
- Accepted by SEC: 04 Mar 2026, 16:53.
GLENCORE INTERNATIONAL AG - 04 Mar 2026 Form 4 Insider Report for CENTURY ALUMINUM CO (CENX)
- Reporting relationship
- 10%+ Owner
- Issuer ticker
- CENX
- Reported as of
- 04 Mar 2026
- Net transaction value
- -$326,813,929
- SEC form
- 4
- Accepted by SEC
- 04 Mar 2026, 16:53:11 UTC
- Prior SEC filing
- 13 Nov 2025
- Source filing
- View source filing
- Reporting owner signature
- GLENCORE AG By: /s/ John Burton Name: John Burton Title: Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
GLENCORE INTERNATIONAL AG filed Form 4 for CENTURY ALUMINUM CO (CENX) on 04 Mar 2026.
Change
- Previous filing in this sequence was filed on 13 Nov 2025.
- Current net transaction value: -$326,813,929.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (3)
CIK 0001032383
Primary reporting owner
GLENCORE INTERNATIONAL AG
- Relationship
- 10%+ Owner
- Address
- BAARERMATTSTRASSE 3, P.O. BOX 1363, BAAR, SWITZERLAND
- Signature
- GLENCORE AG By: /s/ John Burton Name: John Burton Title: Attorney-in-Fact
- Signature date
- 04 Mar 2026
CIK 0001449539
Glencore AG
- Relationship
- 10%+ Owner
- Address
- BAARERMATTSTRASSE 3, P.O. BOX 1363, BAAR, SWITZERLAND
- Signature
- GLENCORE INTERNATIONAL AG By: /s/ John Burton Name: John Burton Title: Attorney-in-Fact
- Signature date
- 04 Mar 2026
CIK 0001521365
Glencore plc
- Relationship
- 10%+ Owner
- Address
- BAARERMATTSTRASSE 3, P.O. BOX 1363, BAAR, SWITZERLAND
- Signature
- GLENCORE PLC By: /s/ John Burton Name: John Burton Title: Company Secretary
- Signature date
- 04 Mar 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
CENX
transaction
Common Stock
Sale
- Transaction value
- $326,813,929
- Shares
- -6,315,245
- Change %
- -34%
- Price
- $51.75
- Shares after
- 12,184,755
- Date
- 04 Mar 2026
- Ownership
- Direct
- Footnotes
- F1
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
The Common Stock reported on Line 1 of Table I is held directly by Glencore International AG. Glencore International AG is wholly-owned by Glencore plc, which may be deemed an indirect beneficial owner of the securities held by Glencore AG and Glencore International AG.