Century Aluminum Company (CENX) Insider Trading

Last 12 months

Insiders sold $26.2M and bought nothing on the open market.

59% of the selling was scheduled in advance under 10b5-1 plans. EVP, GC and Secretary John Dezee sold $3.35M on Feb 23, 40% of their stake, outside a plan. The last open-market buy by an executive or director was in May 2023.

Net open-market

−$26.2M

0 buys · 10 sales

Under a 10b5-1 plan

59%

of the value sold

Insiders who bought / sold

0 / 8

executives and directors

Last open-market buy

May 2023

May 11, 2023

Get an email when CENX's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Mar 25	Peter A Trpkovski EVP, CFO	SoldNo plan	16,739	$50.51	$845k	21%	Form 4
Mar 16	Jesse E Gary President and CEO	Sold10b5-1 plan	150,000	$55.47	$8.32M	26%	Form 4
Mar 12	Kenneth L Calloway SVP, Human Resources	SoldNo plan	18,000	$58.00	$1.04M	42%	Form 4
Mar 11	Robert F Hoffman SVP, IT and CAO	SoldNo plan	10,529	$56.51	$595k	16%	Form 4
Mar 4	Robert F Hoffman SVP, IT and CAO	SoldNo plan	10,000	$56.33	$563k	13%	Form 4
Mar 4	Glencore AG Large holder	SoldNo plan	6,315,245	$51.75	$327M	34%	Form 4
Mar 2 – 3	Matt Aboud SVP, Strategy & Business Dev't	SoldNo plan 2 parts	15,097	$52.53 average	$793k	19%	Form 4
Feb 27	Agust F Hafberg SVP & Chief Commercial Officer	SoldNo plan	22,884	$51.24	$1.17M	34%	Form 4
Feb 25	Gunnar Gudlaugsson EVP - Global Operations	SoldNo plan	43,000	$54.10	$2.33M	24%	Form 4
Feb 23	John Dezee EVP, GC and Secretary	SoldNo plan	66,000	$50.72	$3.35M	40%	Form 4
Jan 23	Jesse E Gary President and CEO	Sold10b5-1 plan	150,000	$48.19	$7.23M	13%	Form 4
Nov 10, 2025	Glencore International AG Large holder	SoldNo plan	9,000,000	$30.25	$272M	20%	Form 4
Sep 26, 2025	Agust F Hafberg SVP & Chief Commercial Officer	SoldNo plan	9,493	$27.91	$265k	15%	Form 4
Sep 19, 2025	Kenneth L Calloway SVP, Human Resources	SoldNo plan	16,450	$27.50	$452k	36%	Form 4
Aug 12, 2025	Matt Aboud SVP, Strategy & Business Dev't	SoldNo plan	12,027	$23.27	$280k	16%	Form 4
Mar 20, 2025	Robert F Hoffman SVP, IT and CAO	SoldNo plan	5,000	$20.24	$101k	7.8%	Form 4
Mar 14, 2025	Robert F Hoffman SVP, IT and CAO	SoldNo plan	2,500	$19.99	$50k	3.8%	Form 4
Dec 26, 2024 – Dec 27, 2024	Jesse E Gary President and CEO	SoldNo plan 2 parts	79,243	$18.66 average	$1.48M	20%	Form 4
Dec 5, 2024	Gunnar Gudlaugsson EVP - Global Operations	SoldNo plan	20,000	$23.85	$477k	16%	Form 4

Mar 25No plan
Peter A Trpkovski
EVP, CFO · sold 16,739 at $50.51
$845k
21% of stake
Mar 1610b5-1 plan
Jesse E Gary
President and CEO · sold 150,000 at $55.47
$8.32M
26% of stake
Mar 12No plan
Kenneth L Calloway
SVP, Human Resources · sold 18,000 at $58.00
$1.04M
42% of stake
Mar 11No plan
Robert F Hoffman
SVP, IT and CAO · sold 10,529 at $56.51
$595k
16% of stake
Mar 4No plan
Robert F Hoffman
SVP, IT and CAO · sold 10,000 at $56.33
$563k
13% of stake
Mar 4No plan
Glencore AG
Large holder · sold 6,315,245 at $51.75
$327M
34% of stake
Mar 2 – 3No plan
Matt Aboud
SVP, Strategy & Business Dev't · sold 15,097 at avg $52.53
$793k
19% of stake
Feb 27No plan
Agust F Hafberg
SVP & Chief Commercial Officer · sold 22,884 at $51.24
$1.17M
34% of stake
Feb 25No plan
Gunnar Gudlaugsson
EVP - Global Operations · sold 43,000 at $54.10
$2.33M
24% of stake
Feb 23No plan
John Dezee
EVP, GC and Secretary · sold 66,000 at $50.72
$3.35M
40% of stake
Jan 2310b5-1 plan
Jesse E Gary
President and CEO · sold 150,000 at $48.19
$7.23M
13% of stake
Nov 10, 2025No plan
Glencore International AG
Large holder · sold 9,000,000 at $30.25
$272M
20% of stake
Sep 26, 2025No plan
Agust F Hafberg
SVP & Chief Commercial Officer · sold 9,493 at $27.91
$265k
15% of stake
Sep 19, 2025No plan
Kenneth L Calloway
SVP, Human Resources · sold 16,450 at $27.50
$452k
36% of stake
Aug 12, 2025No plan
Matt Aboud
SVP, Strategy & Business Dev't · sold 12,027 at $23.27
$280k
16% of stake
Mar 20, 2025No plan
Robert F Hoffman
SVP, IT and CAO · sold 5,000 at $20.24
$101k
7.8% of stake
Mar 14, 2025No plan
Robert F Hoffman
SVP, IT and CAO · sold 2,500 at $19.99
$50k
3.8% of stake
Dec 26, 2024 – Dec 27, 2024No plan
Jesse E Gary
President and CEO · sold 79,243 at avg $18.66
$1.48M
20% of stake
Dec 5, 2024No plan
Gunnar Gudlaugsson
EVP - Global Operations · sold 20,000 at $23.85
$477k
16% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch CENX, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in CENX's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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