John DeZee

CIK: 0001863198

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)1 (11.1%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)4 (44.4%)

Compensation grants

Other (G, F, J, C, D, …)4 (44.4%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

CENX

CENTURY ALUMINUM CO

Officer

Discretionary Trading P&L

Holdings

Transaction History (9 total)

CENX
CENTURY ALUMINUM CO
Feb 23, 2026
Sale(S)
Direct
66K shares at avg. $50.72$3.3M
CENX
CENTURY ALUMINUM CO
Jan 1, 2026
Award(A)
Direct
9.8K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2025
Tax Payment(F)
Direct
12K shares at avg. $39.18$469K
CENX
CENTURY ALUMINUM CO
Dec 31, 2025
Award(A)
Direct
54K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2025
Tax Payment(F)
Direct
21.2K shares at avg. $39.18$829K
CENX
CENTURY ALUMINUM CO
Jan 1, 2025
Award(A)
Direct
15.2K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2024
Award(A)
Direct
26K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2024
Tax Payment(F)
Direct
7.6K shares at avg. $18.22$139K
CENX
CENTURY ALUMINUM CO
Dec 31, 2024
Tax Payment(F)
Direct
2.6K shares at avg. $18.22$48K

		Type	Shares	Price		Ownership
Feb 23, 2026	CENX CENTURY ALUMINUM CO	Sale(S)	66,000	$50.72	$3,347,520	Direct
Jan 1, 2026	CENX CENTURY ALUMINUM CO	Award(A)	9,821	-	$0	Direct
Dec 31, 2025	CENX CENTURY ALUMINUM CO	Tax Payment(F)	11,971	$39.18	$469,024	Direct
Dec 31, 2025	CENX CENTURY ALUMINUM CO	Award(A)	54,042	-	$0	Direct
Dec 31, 2025	CENX CENTURY ALUMINUM CO	Tax Payment(F)	21,163	$39.18	$829,166	Direct
Jan 1, 2025	CENX CENTURY ALUMINUM CO	Award(A)	15,244	-	$0	Direct
Dec 31, 2024	CENX CENTURY ALUMINUM CO	Award(A)	26,036	-	$0	Direct
Dec 31, 2024	CENX CENTURY ALUMINUM CO	Tax Payment(F)	7,629	$18.22	$139,000	Direct
Dec 31, 2024	CENX CENTURY ALUMINUM CO	Tax Payment(F)	2,616	$18.22	$47,664	Direct

1-9 of 9 transactions

About DeZee John

DeZee John (SEC CIK 0001863198) files insider reports with the SEC as EVP, GC and Secretary of CENTURY ALUMINUM CO (CENX).

Signal8 holds 3 ownership filings by DeZee John, all Form 4s, filed between Jan 3, 2025 and Feb 25, 2026. Those filings report 9 transactions, from Dec 31, 2024 to Feb 23, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on DeZee John's filings is in CHICAGO, IL.

Recent filings by DeZee John

Feb 23, 2026: Open-market sale of CENX shares (Form 4, code S).
Jan 1, 2026: Grant or award of CENX shares (Form 4, code A).
Dec 31, 2025: Tax withholding of CENX shares (Form 4, code F).
Dec 31, 2025: Grant or award of CENX shares (Form 4, code A).
Dec 31, 2025: Tax withholding of CENX shares (Form 4, code F).

Other insiders filing for CENTURY ALUMINUM CO (CENX)

Berntzen Jarl, Director
GLASSER ERROL, Director
Michelmore Andrew G, Director
Bush Jennifer Mary, Director
Olivier Tamla A, Director
Trpkovski Peter A, EVP, CFO

How to read Form 4 transaction codes