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Century Aluminum

386 hedge funds and large institutions have $5.92B invested in Century Aluminum in 2026 Q1 according to their latest regulatory filings, with 108 funds opening new positions, 128 increasing their positions, 122 reducing their positions, and 41 closing their positions.

New
Increased
Maintained
Reduced
Closed

215% more call options, than puts

Call options by funds: $162M | Put options by funds: $51.5M

163% more first-time investments, than exits

New positions opened: 108 | Existing positions closed: 41

51% more capital invested

Capital invested by funds: $3.91B → $5.92B (+$2.01B)

19% more funds holding

Funds holding: 325386 (+61)

5% more repeat investments, than reductions

Existing positions increased: 128 | Existing positions reduced: 122

0% more funds holding in top 10

Funds holding in top 10: 1313 (0)

5.01% less ownership

Funds ownership: 107.02%102% (-5%)

Holders
386
Holders Change
+61
Holders Change %
+18.77%
% of All Funds
4.75%
Holding in Top 10
13
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.16%
New
108
Increased
128
Reduced
122
Closed
41
Calls
$162M
Puts
$51.5M
Net Calls
+$111M
Net Calls Change
-$15.9M
Name Holding Trade Value Shares
Change
Change in
Stake
Tudor Investment Corp
51
Tudor Investment Corp
Connecticut
$16.4M -$4.35M -86,696 -24%
SCP
52
Steamboat Capital Partners
New York
$16.2M -$7.4M -147,560 -35%
Canada Life
53
Canada Life
Manitoba, Canada
$16.2M +$7.97M +158,894 +136%
RA
54
Royce & Associates
New York
$15.5M -$2.5M -49,948 -16%
Principal Financial Group
55
Principal Financial Group
Iowa
$15.3M -$7.03M -140,211 -35%
WHGAM
56
Wealth High Governance Asset Management
$15.2M +$5.36M +106,909 +70%
CAM
57
Congress Asset Management
Massachusetts
$14.9M +$2.36M +46,996 +23%
CF
58
CDC Financial
Illinois
$14.5M -$4.89M -97,520 -28%
Public Sector Pension Investment Board (PSP Investments)
59
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$14.3M +$2.99M +59,554 +32%
American Century Companies
60
American Century Companies
Missouri
$13.6M -$37.2M -742,207 -76%
Bank of Montreal
61
Bank of Montreal
Ontario, Canada
$13.4M +$9.69M +193,267 +561%
YCM
62
Yaupon Capital Management
New York
$12.4M +$10.6M +211,201 New
HF
63
HRT Financial
New York
$11.5M +$6.14M +122,490 +167%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
64
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$10.8M +$6.34M +126,461 +220%
IA
65
Icon Advisers
Colorado
$10.2M -$3.45M -68,800 -28%
AQR Capital Management
66
AQR Capital Management
Connecticut
$9.76M +$5.06M +100,928 +155%
First Eagle Investment Management
67
First Eagle Investment Management
New York
$9.57M -$6.95M -138,525 -46%
CIBC World Market
68
CIBC World Market
Ontario, Canada
$9.43M +$8.05M +160,632 New
RhumbLine Advisers
69
RhumbLine Advisers
Massachusetts
$9.29M +$344K +6,859 +5%
SFM
70
Systematic Financial Management
New Jersey
$9.26M -$441K -8,805 -5%
CA
71
CSM Advisors
Pennsylvania
$9.14M -$3.43M -68,496 -31%
Wells Fargo
72
Wells Fargo
California
$8.92M -$2.75M -54,753 -26%
BGM
73
Burkehill Global Management
New York
$8.8M -$17.5M -350,000 -70%
IWS
74
Insight Wealth Strategies
California
$8.57M -$403K -8,042 -5%
Barclays
75
Barclays
United Kingdom
$8.41M +$1.93M +38,480 +37%