Peter A. Trpkovski - 09 Feb 2026 Form 4 Insider Report for CENTURY ALUMINUM CO (CENX)

Role
EVP, CFO
Signature
/s/ Paul Sharobeem, as attorney in fact for Peter A. Trpkovski
Issuer symbol
CENX
Transactions as of
09 Feb 2026
Net transactions value
-$230,486
Form type
4
Filing time
11 Feb 2026, 17:37:01 UTC
Previous filing
05 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Trpkovski Peter A EVP, CFO C/O CENTURY ALUMINUM COMPANY, 1 S. WACKER DRIVE, SUITE 1000, CHICAGO /s/ Paul Sharobeem, as attorney in fact for Peter A. Trpkovski 11 Feb 2026 0001980271

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CENX Common Stock Tax liability $230,486 -4,240 -5% $54.36 80,864 09 Feb 2026 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of RSUs previously granted to the Reporting Person on February 9, 2023.
F2 Includes unvested RSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.