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CENTURY ALUMINUM CO

For the period ended Dec 31, 2025. Filed Mar 3, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Mar 3, 2026

CENX$36.62+9.4%Stored close · as of Nov 9, 2026

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Signatures

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Century Aluminum Company
By:/s/ JESSE E. GARY
Jesse E. Gary
President and Chief Executive Officer (Principal Executive Officer)
Dated:March 3, 2026

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the date indicated.

SignatureTitleDate
/s/ JESSE E. GARYPresident and Chief Executive Officer and Director (Principal Executive Officer)March 3, 2026
Jesse E. Gary
*ChairmanMarch 3, 2026
Andrew Michelmore
*DirectorMarch 3, 2026
Jarl Berntzen
*DirectorMarch 3, 2026
Errol Glasser
*DirectorMarch 3, 2026
Wilhelm van Jaarsveld
*DirectorMarch 3, 2026
Jennifer Bush
*DirectorMarch 3, 2026
Tamla Olivier
/s/ PETER TRPKOVSKIExecutive Vice President and Chief Financial Officer(Principal Financial Officer)March 3, 2026
Peter Trpkovski
/s/ ROBERT HOFFMANVice President and Chief Accounting Officer(Principal Accounting Officer)March 3, 2026
Robert Hoffman
*By: /s/ JOHN DEZEE
John DeZee, as Attorney-in-fact
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.