Gunnar Gudlaugsson - 25 Feb 2026 Form 4 Insider Report for CENTURY ALUMINUM CO (CENX)

Reporting relationship
EVP - Global Operations
Issuer ticker
CENX
Reported as of
25 Feb 2026
Net transaction value
-$2,326,300
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
27 Feb 2026, 17:07:39 UTC
Prior SEC filing
05 Jan 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Paul Sharobeem, as attorney in fact for Gunnar Gudlaugsson

Key filing fact

Gunnar Gudlaugsson filed Form 4 for CENTURY ALUMINUM CO (CENX) on 27 Feb 2026.

Key facts

  • This page summarizes Gunnar Gudlaugsson's Form 4 filing for CENTURY ALUMINUM CO (CENX).
  • 1 reported transaction and 0 derivative rows are listed below.
  • Accepted by SEC: 27 Feb 2026, 17:07.

Change

  • Previous filing in this sequence was filed on 05 Jan 2026.
  • Current net transaction value: -$2,326,300.

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

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001846594 Primary reporting owner

Gudlaugsson Gunnar

Relationship
EVP - Global Operations
Address
C/O CENTURY ALUMINUM COMPANY, 1 S. WACKER DR., SUITE 1000, CHICAGO
Signature
/s/ Paul Sharobeem, as attorney in fact for Gunnar Gudlaugsson
Signature date
27 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CENX transaction

Common Stock

Sale

Transaction value
$2,326,300
Shares
-43,000
Change %
-24%
Price
$54.10
Shares after
136,393
Date
25 Feb 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

Includes unvested RSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.

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