Peter A. Trpkovski

CIK: 0001980271

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)1 (8.3%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)5 (41.7%)

Compensation grants

Other (G, F, J, C, D, …)6 (50.0%)

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 (12 total)

CENX
CENTURY ALUMINUM CO
Mar 25, 2026
Sale(S)
Direct
16.7K shares at avg. $50.51$845K
CENX
CENTURY ALUMINUM CO
Feb 9, 2026
Tax Payment(F)
Direct
4.2K shares at avg. $54.36$230K
CENX
CENTURY ALUMINUM CO
Jan 1, 2026
Award(A)
Direct
13.5K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2025
Award(A)
Direct
18.3K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2025
Tax Payment(F)
Direct
8.1K shares at avg. $39.18$317K
CENX
CENTURY ALUMINUM CO
Dec 31, 2025
Tax Payment(F)
Direct
4K shares at avg. $39.18$158K
CENX
CENTURY ALUMINUM CO
Mar 21, 2025
Award(A)
Direct
12.5K shares-
CENX
CENTURY ALUMINUM CO
Feb 7, 2025
Tax Payment(F)
Direct
4.5K shares at avg. $18.69$84K
CENX
CENTURY ALUMINUM CO
Jan 1, 2025
Award(A)
Direct
6K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2024
Award(A)
Direct
4.6K shares-
CENX
CENTURY ALUMINUM CO
Dec 31, 2024
Tax Payment(F)
Direct
2K shares at avg. $18.22$37K
CENX
CENTURY ALUMINUM CO
Dec 31, 2024
Tax Payment(F)
Direct
703 shares at avg. $18.22$13K

		Type	Shares	Price		Ownership
Mar 25, 2026	CENX CENTURY ALUMINUM CO	Sale(S)	16,739	$50.51	$845,487	Direct
Feb 9, 2026	CENX CENTURY ALUMINUM CO	Tax Payment(F)	4,240	$54.36	$230,486	Direct
Jan 1, 2026	CENX CENTURY ALUMINUM CO	Award(A)	13,488	-	$0	Direct
Dec 31, 2025	CENX CENTURY ALUMINUM CO	Award(A)	18,260	-	$0	Direct
Dec 31, 2025	CENX CENTURY ALUMINUM CO	Tax Payment(F)	8,090	$39.18	$316,966	Direct
Dec 31, 2025	CENX CENTURY ALUMINUM CO	Tax Payment(F)	4,045	$39.18	$158,483	Direct
Mar 21, 2025	CENX CENTURY ALUMINUM CO	Award(A)	12,455	-	-	Direct
Feb 7, 2025	CENX CENTURY ALUMINUM CO	Tax Payment(F)	4,501	$18.69	$84,124	Direct
Jan 1, 2025	CENX CENTURY ALUMINUM CO	Award(A)	6,046	-	$0	Direct
Dec 31, 2024	CENX CENTURY ALUMINUM CO	Award(A)	4,624	-	$0	Direct
Dec 31, 2024	CENX CENTURY ALUMINUM CO	Tax Payment(F)	2,049	$18.22	$37,333	Direct
Dec 31, 2024	CENX CENTURY ALUMINUM CO	Tax Payment(F)	703	$18.22	$12,809	Direct

1-12 of 12 transactions

About Trpkovski Peter A

Trpkovski Peter A (SEC CIK 0001980271) files insider reports with the SEC as EVP, CFO of CENTURY ALUMINUM CO (CENX).

Signal8 holds 6 ownership filings by Trpkovski Peter A, all Form 4s, filed between Jan 3, 2025 and Mar 27, 2026. Those filings report 12 transactions, from Dec 31, 2024 to Mar 25, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Trpkovski Peter A's filings is in CHICAGO, IL.

Recent filings by Trpkovski Peter A

Mar 25, 2026: Open-market sale of CENX shares (Form 4, code S).
Feb 9, 2026: Tax withholding of CENX shares (Form 4, code F).
Jan 1, 2026: Grant or award of CENX shares (Form 4, code A).
Dec 31, 2025: Grant or award of CENX shares (Form 4, code A).
Dec 31, 2025: Tax withholdings of CENX shares (2 lines, 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
Gary Jesse E, President and CEO

How to read Form 4 transaction codes