Century Aluminum CO CENX
Institutional shares held
55.6 Million
3.13M
calls
1.77M
puts
Total value of holdings
$1.9B
$107M
calls
$60.5M
puts
Market Cap
$3.13B
91,358,096
Shares Out.
Institutional ownership
60.85%
# of Institutions
261
We take great care to ensure that the data presented and summarized in this overview for CENTURY ALUMINUM CO is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Top Institutions Holding CENX
View all-
Black Rock Inc. New York, NY9.8MShares$336 Million0.0% of portfolio
-
Vanguard Group Inc Valley Forge, PA5.77MShares$198 Million0.0% of portfolio
-
State Street Corp Boston, MA3.67MShares$126 Million0.0% of portfolio
-
Dimensional Fund Advisors LP Austin, TX3.07MShares$105 Million0.01% of portfolio
-
Ken Griffin Citadel Advisors LLC | Chicago, Il1.92MShares$65.9 Million0.01% of portfolio
-
Wexford Capital LP Greenwich, CT1.48MShares$50.6 Million8.6% of portfolio
-
Mirae Asset Global Etfs Holdings Ltd. Central, K31.43MShares$49 Million0.05% of portfolio
-
Sourcerock Group LLC Denver, CO1.42MShares$48.8 Million1.46% of portfolio
-
Boston Partners Boston, MA1.3MShares$44.7 Million0.03% of portfolio
-
Geode Capital Management, LLC Boston, MA1.3MShares$44.6 Million0.0% of portfolio
Latest Institutional Activity in CENX
Top Purchases
Top Sells
About CENX
Century Aluminum Company, together with its subsidiaries, produces standard-grade and value-added primary aluminum products in the United States and Iceland. It also owns and operates a carbon anode production facility in the Netherlands. The company was incorporated in 1981 and is headquartered in Chicago, Illinois.
Insider Transactions at CENX
Insider Transaction List
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Sep 30
2025
|
International Ag Glencore > 10% Shareholder |
BUY
Conversion of derivative security
|
Indirect |
2,848
+0.02%
|
-
|
|
Sep 26
2025
|
Agust F Hafberg SVP & Chief Commercial Officer |
SELL
Open market or private sale
|
Direct |
9,493
-14.66%
|
$256,311
$27.91 P/Share
|
|
Sep 19
2025
|
Kenneth L Calloway SVP, Human Resources |
SELL
Open market or private sale
|
Direct |
16,450
-36.43%
|
$444,150
$27.5 P/Share
|
|
Aug 12
2025
|
Matt Aboud SVP, Strategy & Business Dev't |
SELL
Open market or private sale
|
Direct |
12,027
-16.12%
|
$276,621
$23.27 P/Share
|
|
Jun 30
2025
|
International Ag Glencore > 10% Shareholder |
BUY
Conversion of derivative security
|
Indirect |
16,477
+0.13%
|
-
|
|
Jun 16
2025
|
Errol Glasser Director |
BUY
Grant, award, or other acquisition
|
Direct |
7,778
+6.15%
|
-
|
|
Jun 16
2025
|
Andrew G Michelmore Director |
SELL
Payment of exercise price or tax liability
|
Direct |
2,333
-2.55%
|
$39,661
$17.36 P/Share
|
|
Jun 16
2025
|
Andrew G Michelmore Director |
BUY
Grant, award, or other acquisition
|
Direct |
7,778
+7.84%
|
-
|
|
Jun 16
2025
|
Tamla A Olivier Director |
BUY
Grant, award, or other acquisition
|
Direct |
7,778
+20.77%
|
-
|
|
Jun 16
2025
|
Jennifer Mary Bush Director |
BUY
Grant, award, or other acquisition
|
Direct |
7,778
+14.23%
|
-
|
|
Jun 16
2025
|
Jarl Berntzen Director |
BUY
Grant, award, or other acquisition
|
Direct |
7,778
+3.59%
|
-
|
|
Mar 31
2025
|
International Ag Glencore > 10% Shareholder |
BUY
Conversion of derivative security
|
Indirect |
3,593
+0.03%
|
-
|
|
Mar 21
2025
|
Peter A Trpkovski EVP, CFO and Treasurer |
BUY
Grant, award, or other acquisition
|
Direct |
12,455
+15.98%
|
-
|
|
Mar 20
2025
|
Robert F Hoffman SVP, IT and CAO |
SELL
Open market or private sale
|
Direct |
5,000
-7.8%
|
$100,000
$20.24 P/Share
|
|
Mar 14
2025
|
Robert F Hoffman SVP, IT and CAO |
SELL
Open market or private sale
|
Direct |
2,500
-3.75%
|
$47,500
$19.99 P/Share
|
|
Feb 07
2025
|
Peter A Trpkovski EVP, CFO and Treasurer |
SELL
Payment of exercise price or tax liability
|
Direct |
4,501
-7.82%
|
$81,018
$18.69 P/Share
|
|
Jan 28
2025
|
Jesse E Gary President and CEO |
BUY
Bona fide gift
|
Indirect |
127,216
+49.85%
|
-
|
|
Jan 28
2025
|
Jesse E Gary President and CEO |
SELL
Bona fide gift
|
Direct |
127,216
-25.79%
|
-
|
|
Jan 01
2025
|
Jesse E Gary President and CEO |
BUY
Grant, award, or other acquisition
|
Direct |
84,038
+14.55%
|
-
|
|
Jan 01
2025
|
Robert F Hoffman SVP, IT and CAO |
BUY
Grant, award, or other acquisition
|
Direct |
8,257
+11.03%
|
-
|
Last 12 Months Summary
Buy / Acquisition
895K
Shares
From
16
Insiders
| Grant, award, or other acquisition | 535K shares |
|---|---|
| Bona fide gift | 127K shares |
| Conversion of derivative security | 233K shares |
Sell / Disposition
448K
Shares
From
16
Insiders
| Payment of exercise price or tax liability | 176K shares |
|---|---|
| Bona fide gift | 127K shares |
| Open market or private sale | 145K shares |