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Century Aluminum

322 hedge funds and large institutions have $3.91B invested in Century Aluminum in 2025 Q4 according to their latest regulatory filings, with 102 funds opening new positions, 107 increasing their positions, 90 reducing their positions, and 28 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

27% more funds holding

Funds holding: 254322 (+68)

19% more repeat investments, than reductions

Existing positions increased: 107 | Existing positions reduced: 90

3.55% more ownership

Funds ownership: 103.35%106.9% (+3.6%)

Holders
322
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
13
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$190M
Puts
$63.7M
Net Calls
Net Calls Change

Top Buyers

1 +$34.2M
2 +$30.9M
3 +$30.7M
4
Millennium Management
Millennium Management
New York
+$30.5M
5
UBS Group
UBS Group
Switzerland
+$19.9M

Top Sellers

1 -$127M
2 -$25.3M
3 -$20.1M
4
Boston Partners
Boston Partners
Massachusetts
-$16.9M
5
ECA
Encompass Capital Advisors
New York
-$9.73M
Name Holding Trade Value Shares
Change
Change in
Stake
Franklin Resources
126
Franklin Resources
California
$1.86M
GCP
127
GSA Capital Partners
United Kingdom
$1.83M
SIM
128
SummerHaven Investment Management
Connecticut
$1.7M
WG
129
Winton Group
United Kingdom
$1.67M
Jane Street
130
Jane Street
New York
$1.63M
LCM
131
Legato Capital Management
California
$1.61M
IMC Chicago
132
IMC Chicago
Illinois
$1.48M
Squarepoint
133
Squarepoint
New York
$1.46M
Royal Bank of Canada
134
Royal Bank of Canada
Ontario, Canada
$1.46M
Thrivent Financial for Lutherans
135
Thrivent Financial for Lutherans
Minnesota
$1.43M
LIP
136
Lighthouse Investment Partners
Florida
$1.37M
Capital Fund Management (CFM)
137
Capital Fund Management (CFM)
France
$1.35M
Bank of Montreal
138
Bank of Montreal
Ontario, Canada
$1.35M
SPC
139
Sigma Planning Corp
Michigan
$1.25M
SOADOR
140
State of Alaska Department of Revenue
Alaska
$1.2M
PCM
141
Polymer Capital Management
New York
$1.18M
Aberdeen Group
142
Aberdeen Group
United Kingdom
$1.17M
MIM
143
MetLife Investment Management
New Jersey
$1.16M
ONGA
144
O'Neil Global Advisors
California
$1.13M
VF
145
Virtu Financial
New York
$1.12M
OQS
146
Occudo Quantitative Strategies
Florida
$1.12M
IMRF
147
Illinois Municipal Retirement Fund
Illinois
$1.12M
N
148
Natixis
France
$1.1M
ET
149
Entropy Technologies
New York
$1.06M
Citigroup
150
Citigroup
New York
$1.03M