Peter A Trpkovski Century Aluminum CO (CENX) insider trading activity

Peter A Trpkovski is EVP, CFO and Treasurer of CENTURY ALUMINUM CO. Currently has a direct ownership of 85,104 shares of CENX, which is worth approximately $2.45 Million. The most recent transaction as insider was on Jan 01, 2026, when has been sold 13,488 shares (Common Stock) at a price of $0.0 per share, resulting in proceeds of $0. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 85.1K

29.95% 3M change

47.91% 12M change

Total Value Held $2.45 Million

Peter A Trpkovski Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Jan 01 2026	BUY Grant, award, or other acquisition	-	13,488 Added 13.68%	85,104 Common Stock
Dec 31 2025	SELL Payment of exercise price or tax liability	$475,449 $39.18 p/Share	12,135 Reduced 14.49%	71,616 Common Stock
Dec 31 2025	BUY Grant, award, or other acquisition	-	18,260 Added 17.9%	83,751 Common Stock
Mar 21 2025	BUY Grant, award, or other acquisition	-	12,455 Added 15.98%	65,491 Common Stock
Feb 07 2025	SELL Payment of exercise price or tax liability	$84,123 $18.69 p/Share	4,501 Reduced 7.82%	53,036 Common Stock
Jan 01 2025	BUY Grant, award, or other acquisition	-	6,046 Added 9.51%	57,537 Common Stock
Dec 31 2024	SELL Payment of exercise price or tax liability	$50,141 $18.22 p/Share	2,752 Reduced 5.07%	51,491 Common Stock

Dec 31 2024	BUY Grant, award, or other acquisition	-	4,624 Added 7.85%	54,243 Common Stock
Feb 09 2024	SELL Payment of exercise price or tax liability	$33,458 $10.42 p/Share	3,211 Reduced 6.08%	49,619 Common Stock
Jan 01 2024	BUY Grant, award, or other acquisition	-	11,841 Added 18.31%	52,830 Common Stock
Dec 31 2023	SELL Payment of exercise price or tax liability	$12,249 $12.14 p/Share	1,009 Reduced 2.4%	40,989 Common Stock
Dec 28 2023	SELL Open market or private sale	$171,346 $12.32 p/Share	13,908 Reduced 24.88%	41,998 Common Stock

PAT

Peter A Trpkovski

EVP, CFO and Treasurer

Chicago, IL

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