Kenneth L. Calloway

CIK: 0002014963

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)2 (20.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)4 (40.0%)

Compensation grants

Other (G, F, J, C, D, …)4 (40.0%)

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 (10 total)

CENX
CENTURY ALUMINUM CO
Mar 12, 2026
Sale(S)
Direct
18K shares at avg. $58.00$1.0M
CENX
CENTURY ALUMINUM CO
Jan 1, 2026
Award(A)
Direct
5.2K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2025
Tax Payment(F)
Direct
3.7K shares at avg. $39.18$146K
CENX
CENTURY ALUMINUM CO
Dec 31, 2025
Award(A)
Direct
18.2K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2025
Tax Payment(F)
Direct
5.5K shares at avg. $39.18$214K
CENX
CENTURY ALUMINUM CO
Sep 19, 2025
Sale(S)
Direct
16.5K shares at avg. $27.50$452K
CENX
CENTURY ALUMINUM CO
Jan 1, 2025
Award(A)
Direct
7.8K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2024
Award(A)
Direct
7.3K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2024
Tax Payment(F)
Direct
3.3K shares at avg. $18.22$60K
CENX
CENTURY ALUMINUM CO
Dec 31, 2024
Tax Payment(F)
Direct
1.1K shares at avg. $18.22$20K

		Type	Shares	Price		Ownership
Mar 12, 2026	CENX CENTURY ALUMINUM CO	Sale(S)	18,000	$58.00	$1,044,000	Direct
Jan 1, 2026	CENX CENTURY ALUMINUM CO	Award(A)	5,238	-	$0	Direct
Dec 31, 2025	CENX CENTURY ALUMINUM CO	Tax Payment(F)	3,723	$39.18	$145,867	Direct
Dec 31, 2025	CENX CENTURY ALUMINUM CO	Award(A)	18,150	-	$0	Direct
Dec 31, 2025	CENX CENTURY ALUMINUM CO	Tax Payment(F)	5,469	$39.18	$214,275	Direct
Sep 19, 2025	CENX CENTURY ALUMINUM CO	Sale(S)	16,450	$27.50	$452,375	Direct
Jan 1, 2025	CENX CENTURY ALUMINUM CO	Award(A)	7,787	-	$0	Direct
Dec 31, 2024	CENX CENTURY ALUMINUM CO	Award(A)	7,267	-	$0	Direct
Dec 31, 2024	CENX CENTURY ALUMINUM CO	Tax Payment(F)	3,280	$18.22	$59,762	Direct
Dec 31, 2024	CENX CENTURY ALUMINUM CO	Tax Payment(F)	1,125	$18.22	$20,498	Direct

1-10 of 10 transactions

About Calloway Kenneth L

Calloway Kenneth L (SEC CIK 0002014963) files insider reports with the SEC as SVP, Human Resources of CENTURY ALUMINUM CO (CENX).

Signal8 holds 4 ownership filings by Calloway Kenneth L, all Form 4s, filed between Jan 3, 2025 and Mar 13, 2026. Those filings report 10 transactions, from Dec 31, 2024 to Mar 12, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Calloway Kenneth L's filings is in CHICAGO, IL.

Recent filings by Calloway Kenneth L

Mar 12, 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