Daniel J Krofcheck

Insider

First SEC filing: March 1, 2006 · Latest: March 1, 2006

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 9 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

9 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 10, 2006	CENX	I	282	$55.27	$15,586	0 Indirect	-100.00%	Disposed	-20.9% (price as of 2026-08-20)
May 9, 2006	CENX	S	4,468	$54.97	$245,606	0 Direct	-100.00%	Disposed	-20.4% (price as of 2026-08-20)
March 7, 2006	CENX	F	3,877	$35.85	$138,990	4,468 Direct	-46.46%	Disposed	22.0% (price as of 2026-08-20)
March 7, 2006	CENX	A	8,345	—	—	8,345 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 27, 2006	CENX	M	10,000	$16.25	$162,500	0 Direct	-100.00%	Disposed	169.1% (price as of 2026-08-20)
Feb. 27, 2006	CENX	S	17,685	$36.07	$637,898	0 Direct	-100.00%	Disposed	21.2% (price as of 2026-08-20)
Feb. 27, 2006	CENX	M	10,000	$16.25	$162,500	17,685 Direct	+130.12%	Acquired	169.1% (price as of 2026-08-20)
March 21, 2005	CENX	F	2,377	$33.37	$79,320	7,685 Direct	-23.62%	Disposed	31.0% (price as of 2026-08-20)
March 21, 2005	CENX	A	5,166	—	—	10,062 Direct	+105.51%	Acquired	(price as of 2026-08-20)
Feb. 25, 2005	CENX	S	25,000	$32.04	$801,000	4,896 Direct	-83.62%	Disposed	36.5% (price as of 2026-08-20)
Sept. 3, 2004	CENX	S	2,608	$24.54	$64,000	0 Indirect	-100.00%	Disposed	78.2% (price as of 2026-08-20)
Sept. 2, 2004	CENX	S	2,765	—	—	29,896 Direct	-8.47%	Disposed	(price as of 2026-08-20)
Sept. 1, 2004	CENX	S	3,235	—	—	32,661 Direct	-9.01%	Disposed	(price as of 2026-08-20)
April 13, 2004	CENX	F	2,803	$24.35	$68,253	38,437 Direct	-6.80%	Disposed	79.6% (price as of 2026-08-20)
April 13, 2004	CENX	A	6,451	—	—	41,240 Direct	+18.54%	Acquired	(price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Feb. 27, 2006	CENX	Stock Option	Common Stock (10,000)	$16.25	—	10,000	Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).