Jesse E. Gary - 31 Dec 2025 Form 4 Insider Report for CENTURY ALUMINUM CO (CENX)

Reporting relationship: President and CEO, Director
Issuer ticker: CENX
Reported as of: 31 Dec 2025
Net transaction value: -$10,611,590
SEC form: 4
Accepted by SEC: 05 Jan 2026, 17:03:32 UTC
Prior SEC filing: 29 Jan 2025
Next SEC filing: 23 Jan 2026
Source filing: View source filing
Reporting owner signature: /s/ Paul Sharobeem, attorney-in-fact for Jesse E. Gary

Key filing fact

Jesse E. Gary filed Form 4 for CENTURY ALUMINUM CO (CENX) on 05 Jan 2026.

Key facts

This page summarizes Jesse E. Gary's Form 4 filing for CENTURY ALUMINUM CO (CENX).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 05 Jan 2026, 17:03.

Change

Previous filing in this sequence was filed on 29 Jan 2025.
Current net transaction value: -$10,611,590.

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 0001568817 Primary reporting owner

Gary Jesse E

Relationship: President and CEO, Director
Address: C/O CENTURY ALUMINUM COMPANY, 1 S. WACKER DRIVE, SUITE 1000, CHICAGO
Signature: /s/ Paul Sharobeem, attorney-in-fact for Jesse E. Gary
Signature date: 05 Jan 2026

Reported non-derivative transactions

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

CENX transaction

Common Stock

Award

Transaction value: $0
Shares: +439,090
Change %: +120%
Price: $0.000000
Shares after: 805,237
Date: 31 Dec 2025
Ownership: Direct
Footnotes: F1

CENX transaction

Common Stock

Tax liability

Transaction value: $7,958,673
Shares: -203,131
Change %: -25%
Price: $39.18
Shares after: 602,106
Date: 31 Dec 2025
Ownership: Direct
Footnotes: F2

CENX transaction

Common Stock

Tax liability

Transaction value: $2,652,917
Shares: -67,711
Change %: -11%
Price: $39.18
Shares after: 534,395
Date: 31 Dec 2025
Ownership: Direct
Footnotes: F3

CENX transaction

Common Stock

Award

Transaction value: $0
Shares: +57,443
Change %: +11%
Price: $0.000000
Shares after: 591,838
Date: 01 Jan 2026
Ownership: Direct
Footnotes: F4, F5

CENX holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 127,969
Date: 31 Dec 2025
Ownership: By Trust
Footnotes: F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

Represents shares of common stock acquired by the Reporting Person upon the vesting of PSUs granted in connection with the Issuer's 2023-2025 Long-Term Incentive Plan under Rule 16b-3(d).

Footnote F2

Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of PSUs granted to the Reporting Person.

Footnote F3

Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of RSUs previously granted to the Reporting Person on January 1, 2023.

Footnote F4

Represents RSUs granted to the Reporting Person in connection with the Issuer's 2026-2028 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2028, subject to the Plan's terms and conditions.

Footnote F5

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

Footnote F6

Shares held in a self-settled, revocable trust for which the Reporting Person serves as trustee.