Gunnar Gudlaugsson

Insider

First SEC filing: Feb. 17, 2021 · Latest: Feb. 17, 2021

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

CENX selling Dec. 5, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 17 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

17 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 1, 2025	CENX	A	24,582	—	—	143,804 Direct	+20.62%	Acquired	(price as of 2026-08-21)
Dec. 31, 2024	CENX	F	6,105	$18.22	$111,233	119,222 Direct	-4.87%	Disposed	146.8% (price as of 2026-08-21)
Dec. 31, 2024	CENX	F	17,804	$18.22	$324,389	125,327 Direct	-12.44%	Disposed	146.8% (price as of 2026-08-21)
Dec. 31, 2024	CENX	A	35,199	—	—	143,131 Direct	+32.61%	Acquired	(price as of 2026-08-21)
Dec. 5, 2024	CENX	S	20,000	$23.85	$477,000	107,932 Direct	-15.63%	Disposed	88.5% (price as of 2026-08-21)
Jan. 1, 2024	CENX	A	47,364	—	—	127,932 Direct	+58.79%	Acquired	(price as of 2026-08-21)
Dec. 31, 2023	CENX	F	6,779	$12.14	$82,297	80,568 Direct	-7.76%	Disposed	270.3% (price as of 2026-08-21)
Dec. 31, 2023	CENX	F	2,892	$12.14	$35,109	87,347 Direct	-3.20%	Disposed	270.3% (price as of 2026-08-21)
Dec. 31, 2023	CENX	A	5,721	—	—	90,239 Direct	+6.77%	Acquired	(price as of 2026-08-21)
Jan. 1, 2023	CENX	A	41,397	—	—	84,518 Direct	+96.00%	Acquired	(price as of 2026-08-21)
Dec. 30, 2022	CENX	F	4,477	$8.18	$36,622	43,121 Direct	-9.41%	Disposed	449.6% (price as of 2026-08-21)
Dec. 30, 2022	CENX	F	5,793	$8.18	$47,387	47,598 Direct	-10.85%	Disposed	449.6% (price as of 2026-08-21)
Dec. 30, 2022	CENX	A	11,462	—	—	53,391 Direct	+27.34%	Acquired	(price as of 2026-08-21)
Jan. 1, 2022	CENX	A	12,069	—	—	41,929 Direct	+40.42%	Acquired	(price as of 2026-08-21)
Dec. 31, 2021	CENX	F	5,299	$16.56	$87,751	29,860 Direct	-15.07%	Disposed	171.5% (price as of 2026-08-21)
Dec. 31, 2021	CENX	A	10,483	—	—	35,159 Direct	+42.48%	Acquired	(price as of 2026-08-21)
Dec. 31, 2021	CENX	F	2,464	$16.56	$40,804	24,676 Direct	-9.08%	Disposed	171.5% (price as of 2026-08-21)
March 3, 2021	CENX	S	5,473	$17.74	$97,091	27,140 Direct	-16.78%	Disposed	153.4% (price as of 2026-08-21)
Feb. 16, 2021	CENX	A	8,029	—	—	32,613 Direct	+32.66%	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.

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
Feb. 17, 2021	CENX	Common Stock	—	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

CENX

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2022	$442,500	—	$600,201	—	$403,838	—	—	$1,713,621
2021	$416,975	—	—	—	$257,656	—	$364,204	$1,541,632

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.