Century Aluminum Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:CENX Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
10 Nov 25	SellUS$272,250,000	Glencore plc	Company	9,000,000	US$30.25
26 Sep 25	SellUS$264,950	Agust Hafberg	Individual	9,493	US$27.91
19 Sep 25	SellUS$452,375	Kenneth Calloway	Individual	16,450	US$27.50
12 Aug 25	SellUS$279,868	Matthew Aboud	Individual	12,027	US$23.27
20 Mar 25	SellUS$101,200	Robert Hoffman	Individual	5,000	US$20.24
14 Mar 25	SellUS$49,975	Robert Hoffman	Individual	2,500	US$19.99

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of CENX?
Owner Type	Number of Shares	Ownership Percentage
State or Government	12,620	0.0134%
Individual Insiders	679,782	0.723%
Public Companies	36,005,947	38.3%
Institutions	57,289,778	61%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 84.14% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
38.6%	Glencore plc	36,005,947	US$1.6b	-10.1%	no data
10.9%	BlackRock, Inc.	10,127,894	US$443.9m	-0.31%	0.01%
6.26%	The Vanguard Group, Inc.	5,845,537	US$256.2m	1.31%	no data
4.52%	State Street Global Advisors, Inc.	4,217,816	US$184.9m	15.1%	0.01%
3.28%	Dimensional Fund Advisors LP	3,061,234	US$134.2m	-0.35%	0.02%
2.83%	Sourcerock Group LLC	2,640,465	US$115.7m	85.4%	6.74%
1.61%	Citadel Advisors LLC	1,505,696	US$66.0m	-21.7%	0.05%
1.56%	Mirae Asset Global Investments Co., Ltd.	1,457,401	US$63.9m	1.96%	0.04%
1.43%	UBS Asset Management AG	1,334,377	US$58.5m	43.9%	no data
1.41%	Geode Capital Management, LLC	1,318,996	US$57.8m	1.41%	no data
1.27%	Morgan Stanley	1,181,774	US$51.8m	100%	no data
1.22%	Boston Partners Global Investors, Inc.	1,139,661	US$50.0m	-34.3%	0.03%
1.04%	Fisher Asset Management, LLC	966,575	US$42.4m	-9.12%	0.01%
0.88%	Qube Research & Technologies Ltd	823,130	US$36.1m	52.1%	0.05%
0.87%	Encompass Capital Advisors LLC	811,162	US$35.6m	676%	1.2%
0.85%	Voloridge Investment Management, LLC	796,883	US$34.9m	47.2%	0.11%
0.84%	Invesco Capital Management LLC	786,243	US$34.5m	62.2%	0.01%
0.82%	American Century Investment Management Inc	767,692	US$33.6m	392%	0.01%
0.74%	Impala Asset Management, LLC	689,000	US$30.2m	-14.3%	16.83%
0.71%	Mountaineer Partners Management, LLC	661,043	US$29.0m	-6.25%	12.88%
0.58%	Charles Schwab Investment Management, Inc.	542,290	US$23.8m	-1.68%	no data
0.56%	Northern Trust Global Investments	518,162	US$22.7m	1.93%	no data
0.51%	Steamboat Capital Partners, LLC	471,929	US$20.7m	147%	4.91%
0.47%	Millennium Management LLC	442,673	US$19.4m	-13.6%	0.01%
0.46%	The Goldman Sachs Group, Inc.	428,397	US$18.8m	271%	0.01%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/01/06 15:39
End of Day Share Price	2026/01/05 00:00
Earnings	2025/09/30
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

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Industry and Sector Metrics

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Analyst Sources

Century Aluminum Company is covered by 19 analysts. 2 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
David Gagliano	Barclays
Paretosh Misra	Berenberg
Katja Jancic	BMO Capital Markets Equity Research