Michelle Lair

Insider

First SEC filing: June 13, 2006 · Latest: June 13, 2006

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

CENX selling Feb. 28, 2022

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 57 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

57 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 1, 2023	CENX	A	13,564	—	—	80,947 Direct	+20.13%	Acquired	(price as of 2026-08-21)
Dec. 30, 2022	CENX	F	4,491	$8.18	$36,736	67,383 Direct	-6.25%	Disposed	449.6% (price as of 2026-08-21)
Dec. 30, 2022	CENX	F	5,811	$8.18	$47,534	71,874 Direct	-7.48%	Disposed	449.6% (price as of 2026-08-21)
Dec. 30, 2022	CENX	A	11,720	—	—	77,685 Direct	+17.77%	Acquired	(price as of 2026-08-21)
Feb. 28, 2022	CENX	S	16,284	$23.22	$378,114	65,965 Direct	-19.80%	Disposed	93.6% (price as of 2026-08-21)
Jan. 1, 2022	CENX	A	4,706	—	—	82,249 Direct	+6.07%	Acquired	(price as of 2026-08-21)
Dec. 31, 2021	CENX	F	8,713	$16.56	$144,287	77,543 Direct	-10.10%	Disposed	171.5% (price as of 2026-08-21)
Dec. 31, 2021	CENX	A	17,573	—	—	86,256 Direct	+25.59%	Acquired	(price as of 2026-08-21)
Dec. 31, 2021	CENX	F	4,051	$16.56	$67,085	68,683 Direct	-5.57%	Disposed	171.5% (price as of 2026-08-21)
Feb. 24, 2021	CENX	S	9,231	$15.53	$143,357	72,734 Direct	-11.26%	Disposed	189.5% (price as of 2026-08-21)
Jan. 1, 2021	CENX	A	6,091	—	—	81,965 Direct	+8.03%	Acquired	(price as of 2026-08-21)
Dec. 31, 2020	CENX	F	5,501	$11.03	$60,676	75,874 Direct	-6.76%	Disposed	307.6% (price as of 2026-08-21)
Dec. 31, 2020	CENX	A	11,094	—	—	81,375 Direct	+15.79%	Acquired	(price as of 2026-08-21)
Dec. 31, 2020	CENX	F	2,356	$11.03	$25,987	70,281 Direct	-3.24%	Disposed	307.6% (price as of 2026-08-21)
Aug. 11, 2020	CENX	S	11,282	$10.25	$115,640	72,637 Direct	-13.44%	Disposed	338.6% (price as of 2026-08-21)
March 24, 2020	CENX	F	6,716	$3.67	$24,648	83,919 Direct	-7.41%	Disposed	1125.1% (price as of 2026-08-21)
March 24, 2020	CENX	A	12,547	—	—	90,635 Direct	+16.07%	Acquired	(price as of 2026-08-21)
Jan. 1, 2020	CENX	A	9,057	—	—	78,088 Direct	+13.12%	Acquired	(price as of 2026-08-21)
Dec. 31, 2019	CENX	F	3,340	$7.76	$25,918	69,031 Direct	-4.62%	Disposed	479.4% (price as of 2026-08-21)
March 25, 2019	CENX	F	16,474	$8.30	$136,734	72,371 Direct	-18.54%	Disposed	441.7% (price as of 2026-08-21)
March 25, 2019	CENX	A	32,758	—	—	88,845 Direct	+58.41%	Acquired	(price as of 2026-08-21)
Jan. 1, 2019	CENX	A	8,169	—	—	56,087 Direct	+17.05%	Acquired	(price as of 2026-08-21)
Dec. 31, 2018	CENX	F	3,086	$7.31	$22,559	47,918 Direct	-6.05%	Disposed	515.0% (price as of 2026-08-21)
June 7, 2018	CENX	A	14,398	—	—	0 Direct	—	Acquired	(price as of 2026-08-21)
June 7, 2018	CENX	S	14,398	$17.39	$250,381	51,004 Direct	-22.01%	Disposed	158.5% (price as of 2026-08-21)
June 7, 2018	CENX	M	14,398	$6.55	$94,307	65,402 Direct	+28.23%	Acquired	586.4% (price as of 2026-08-21)
March 26, 2018	CENX	A	791	—	—	51,004 Direct	+1.58%	Acquired	(price as of 2026-08-21)
Jan. 2, 2018	CENX	A	3,959	—	—	50,213 Direct	+8.56%	Acquired	(price as of 2026-08-21)
Dec. 31, 2017	CENX	F	1,229	$19.64	$24,138	46,254 Direct	-2.59%	Disposed	128.9% (price as of 2026-08-21)
Feb. 28, 2017	CENX	S	2,872	$14.10	$40,495	47,483 Direct	-5.70%	Disposed	218.9% (price as of 2026-08-21)
Feb. 27, 2017	CENX	S	4,125	$13.81	$56,966	50,355 Direct	-7.57%	Disposed	225.6% (price as of 2026-08-21)
Jan. 1, 2017	CENX	A	6,735	—	—	54,480 Direct	+14.11%	Acquired	(price as of 2026-08-21)
Dec. 31, 2016	CENX	F	1,407	$8.56	$12,044	47,745 Direct	-2.86%	Disposed	425.2% (price as of 2026-08-21)
March 22, 2016	CENX	A	8,922	—	—	49,152 Direct	+22.18%	Acquired	(price as of 2026-08-21)
Dec. 31, 2015	CENX	F	2,072	$4.42	$9,158	40,230 Direct	-4.90%	Disposed	917.2% (price as of 2026-08-21)
April 1, 2015	CENX	F	2,053	$14.12	$28,988	42,302 Direct	-4.63%	Disposed	218.4% (price as of 2026-08-21)
April 1, 2015	CENX	A	5,518	—	—	44,355 Direct	+14.21%	Acquired	(price as of 2026-08-21)
March 23, 2015	CENX	A	3,270	—	—	38,837 Direct	+9.19%	Acquired	(price as of 2026-08-21)
Dec. 31, 2014	CENX	F	1,557	$24.40	$37,991	35,567 Direct	-4.19%	Disposed	84.3% (price as of 2026-08-21)
March 24, 2014	CENX	A	3,744	—	—	37,124 Direct	+11.22%	Acquired	(price as of 2026-08-21)
Dec. 31, 2013	CENX	F	1,174	—	—	33,380 Direct	-3.40%	Disposed	(price as of 2026-08-21)
March 19, 2013	CENX	A	5,511	—	—	34,554 Direct	+18.98%	Acquired	(price as of 2026-08-21)
March 19, 2013	CENX	A	4,142	—	—	29,043 Direct	+16.63%	Acquired	(price as of 2026-08-21)
Dec. 31, 2012	CENX	F	1,383	—	—	24,901 Direct	-5.26%	Disposed	(price as of 2026-08-21)
March 22, 2011	CENX	A	3,199	—	—	26,284 Direct	+13.86%	Acquired	(price as of 2026-08-21)
Jan. 1, 2011	CENX	F	6,311	$15.53	$98,010	23,085 Direct	-21.47%	Disposed	189.5% (price as of 2026-08-21)
Dec. 31, 2010	CENX	F	342	$15.53	$5,311	29,396 Direct	-1.15%	Disposed	189.5% (price as of 2026-08-21)
Nov. 4, 2010	CENX	S	3,000	$14.82	$44,460	29,738 Direct	-9.16%	Disposed	203.4% (price as of 2026-08-21)
March 22, 2010	CENX	A	3,770	—	—	32,738 Direct	+13.01%	Acquired	(price as of 2026-08-21)
March 8, 2010	CENX	A	3,980	—	—	30,826 Direct	+14.83%	Acquired	(price as of 2026-08-21)
March 8, 2010	CENX	F	1,858	$15.03	$27,926	28,968 Direct	-6.03%	Disposed	199.1% (price as of 2026-08-21)
Dec. 15, 2009	CENX	S	900	$13.12	$11,808	26,846 Direct	-3.24%	Disposed	242.7% (price as of 2026-08-21)
May 4, 2009	CENX	A	14,398	—	—	14,398 Direct	—	Acquired	(price as of 2026-08-21)
May 4, 2009	CENX	A	16,418	—	—	27,746 Direct	+144.93%	Acquired	(price as of 2026-08-21)
March 24, 2009	CENX	F	9,606	$1.97	$18,924	11,328 Direct	-45.89%	Disposed	2182.2% (price as of 2026-08-21)
March 24, 2009	CENX	A	18,142	—	—	20,934 Direct	+649.79%	Acquired	(price as of 2026-08-21)
Feb. 23, 2009	CENX	A	1,000	$2.48	$2,480	2,792 Direct	+55.80%	Acquired	1712.9% (price as of 2026-08-21)
April 7, 2008	CENX	A	930	—	—	1,792 Direct	+107.89%	Acquired	(price as of 2026-08-21)
March 19, 2008	CENX	A	1,032	—	—	1,231 Direct	+518.59%	Acquired	(price as of 2026-08-21)
March 19, 2008	CENX	F	369	$62.85	$23,192	862 Direct	-29.98%	Disposed	-28.5% (price as of 2026-08-21)
March 19, 2007	CENX	F	111	$44.74	$4,966	199 Direct	-35.81%	Disposed	0.5% (price as of 2026-08-21)
March 19, 2007	CENX	A	310	—	—	310 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 27, 2007	CENX	M	1,334	$23.18	$30,922	0 Direct	-100.00%	Disposed	94.0% (price as of 2026-08-21)
Feb. 27, 2007	CENX	S	1,334	$46.71	$62,311	0 Direct	-100.00%	Disposed	-3.7% (price as of 2026-08-21)
Feb. 27, 2007	CENX	M	1,334	$23.18	$30,922	1,334 Direct	—	Acquired	94.0% (price as of 2026-08-21)
June 9, 2006	CENX	A	5,000	—	—	5,000 Direct	—	Acquired	(price as of 2026-08-21)

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.

Derivative holdings (Form 4 Table II)

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

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
June 7, 2018	CENX	Employee Stock Option (Right to Buy)	Common Stock (14,398)	$6.55	May 4, 2019	14,398	Acquired
May 4, 2009	CENX	Employee Stock Option (right to buy)	Common Stock (14,398)	—	May 4, 2019	14,398	Acquired
Feb. 27, 2007	CENX	STOCK OPTION [F2]	COMMON STOCK (1,334)	$23.18	Dec. 8, 2014	1,334	Disposed
June 9, 2006	CENX	Employee Stock Option (Right to Buy)	Common Stock (5,000)	$37.31	June 9, 2016	5,000	Acquired

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

Initial ownership (Form 3) 3 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
June 13, 2006	CENX	Common Stock	120	Indirect
June 13, 2006	CENX	Employee Stock Option (Right to Buy)→ Common Stock (1,334)	1,334	Direct
June 13, 2006	CENX	Employee Stock Option (Right to Buy)→ Common Stock (3,600)	3,600	Direct