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Century Aluminum

255 hedge funds and large institutions have $2.83B invested in Century Aluminum in 2025 Q3 according to their latest regulatory filings, with 68 funds opening new positions, 82 increasing their positions, 79 reducing their positions, and 33 closing their positions.

New
Increased
Maintained
Reduced
Closed

118% more call options, than puts

Call options by funds: $127M | Put options by funds: $58M

106% more first-time investments, than exits

New positions opened: 68 | Existing positions closed: 33

75% more funds holding in top 10

Funds holding in top 10: 47 (+3)

65% more capital invested

Capital invested by funds: $1.72B → $2.83B (+$1.11B)

15% more funds holding

Funds holding: 221255 (+34)

4% more repeat investments, than reductions

Existing positions increased: 82 | Existing positions reduced: 79

1% more ownership

Funds ownership: 102.35%103.35% (+1%)

Holders
255
Holders Change
+34
Holders Change %
+15.38%
% of All Funds
3.35%
Holding in Top 10
7
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+75%
% of All Funds
0.09%
New
68
Increased
82
Reduced
79
Closed
33
Calls
$127M
Puts
$58M
Net Calls
+$68.7M
Net Calls Change
+$42.8M
Name Holding Trade Value Shares
Change
Change in
Stake
Millennium Management
26
Millennium Management
New York
$13M -$1.58M -69,844 -14%
JP Morgan Chase
27
JP Morgan Chase
New York
$12.5M +$6.28M +277,206 +189%
Assenagon Asset Management
28
Assenagon Asset Management
Luxembourg
$12M +$4.69M +207,040 +103%
Bank of America
29
Bank of America
North Carolina
$11.7M -$13.7M -605,166 -60%
SDIC
30
South Dakota Investment Council
South Dakota
$11.2M -$1.3M -57,258 -13%
Renaissance Technologies
31
Renaissance Technologies
New York
$10.7M +$4.75M +209,500 +135%
Principal Financial Group
32
Principal Financial Group
Iowa
$10.3M +$2.08M +91,647 +35%
First Eagle Investment Management
33
First Eagle Investment Management
New York
$9.99M +$47.5K +2,097 +0.6%
Bank of New York Mellon
34
Bank of New York Mellon
New York
$9.89M -$152K -6,704 -2%
CA
35
CSM Advisors
Pennsylvania
$8.76M +$822K +36,251 +14%
Adage Capital Partners
36
Adage Capital Partners
Massachusetts
$8.66M +$113K +5,000 +2%
Royal Bank of Canada
37
Royal Bank of Canada
Ontario, Canada
$7.94M -$306K -13,509 -5%
Russell Investments Group
38
Russell Investments Group
United Kingdom
$7.58M +$174K +7,680 +3%
IA
39
Icon Advisers
Colorado
$7.11M -$1.89M -83,200 -26%
WP
40
Woodline Partners
California
$6.47M -$24.2M -1,069,227 -83%
Susquehanna International Group
41
Susquehanna International Group
Pennsylvania
$6.4M +$3.5M +154,460 +243%
HP
42
Hartree Partners
New York
$6.39M +$511K +22,538 +12%
JFG
43
Jefferies Financial Group
New York
$6.26M +$4.84M +213,350 New
Public Sector Pension Investment Board (PSP Investments)
44
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$6.09M +$667K +29,424 +17%
WC
45
Wexford Capital
Florida
$6.06M -$28.8M -1,271,304 -86%
CAM
46
Congress Asset Management
Massachusetts
$5.95M -$324K -14,315 -7%
D.E. Shaw & Co
47
D.E. Shaw & Co
New York
$5.92M -$1.52M -67,074 -25%
Cohen & Steers
48
Cohen & Steers
New York
$5.84M +$68.8K +3,037 +2%
Wellington Management Group
49
Wellington Management Group
Massachusetts
$5.7M -$17.8M -787,508 -80%
TI
50
Trexquant Investment
Connecticut
$5.56M +$4.29M +189,355 New

CENX Hedge Fund Activity: Q3 2025 in Review

255 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Century Aluminum (CENX) for Q3 2025, worth a combined $2.83B — up 65% from $1.72B a quarter earlier.

Buyers outnumbered sellers: 68 funds opened new CENX positions and 33 closed out — a net gain of 35 holders — while 82 added to existing stakes and 79 trimmed.

The largest buyer was Sourcerock Group, adding an estimated $27.6M. The largest seller was Wexford Capital, cutting an estimated $28.8M.

  • 255 institutional investors held Century Aluminum (CENX) as of Q3 2025, up from 221 in Q2 2025.
  • Funds reported $2.83B of Century Aluminum stock for Q3 2025, up 65% quarter-over-quarter.
  • 68 funds opened new Century Aluminum positions in Q3 2025 and 33 closed out, a net change of +35 holders.
  • The largest Century Aluminum buyer in Q3 2025 was Sourcerock Group, an estimated $27.6M added.
  • The largest Century Aluminum seller in Q3 2025 was Wexford Capital, an estimated $28.8M sold.

Based on aggregated 13F filings for Q3 2025.