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Century Aluminum

218 hedge funds and large institutions have $1.72B invested in Century Aluminum in 2025 Q1 according to their latest regulatory filings, with 49 funds opening new positions, 69 increasing their positions, 80 reducing their positions, and 49 closing their positions.

New
Increased
Maintained
Reduced
Closed

173% more call options, than puts

Call options by funds: $55.1M | Put options by funds: $20.2M

25% more funds holding in top 10

Funds holding in top 10: 45 (+1)

2% more capital invested

Capital invested by funds: $1.68B → $1.72B (+$31.1M)

0.53% more ownership

Funds ownership: 99.6%100.13% (+0.53%)

0% more first-time investments, than exits

New positions opened: 49 | Existing positions closed: 49

2% less funds holding

Funds holding: 222218 (-4)

14% less repeat investments, than reductions

Existing positions increased: 69 | Existing positions reduced: 80

Holders
218
Holders Change
-4
Holders Change %
-1.8%
% of All Funds
2.92%
Holding in Top 10
5
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+25%
% of All Funds
0.07%
New
49
Increased
69
Reduced
80
Closed
49
Calls
$55.1M
Puts
$20.2M
Net Calls
+$34.9M
Net Calls Change
-$9.38M
Name Holding Trade Value Shares
Change
Change in
Stake
HSBC Holdings
126
HSBC Holdings
United Kingdom
$462K -$82.3K -4,283 -14%
CIM
127
Cambria Investment Management
California
$455K -$41.9K -2,183 -8%
LSERS
128
Louisiana State Employees Retirement System
Louisiana
$455K -$11.5K -600 -2%
SEI Investments
129
SEI Investments
Pennsylvania
$438K +$61K +3,173 +16%
State Board of Administration of Florida Retirement System
130
State Board of Administration of Florida Retirement System
Florida
$431K
Janus Henderson Group
131
Janus Henderson Group
United Kingdom
$424K
State of Tennessee, Department of Treasury
132
State of Tennessee, Department of Treasury
Tennessee
$424K +$71.1K +3,700 +19%
ACM
133
Aquatic Capital Management
Illinois
$421K -$713K -37,117 -62%
Zurich Cantonal Bank
134
Zurich Cantonal Bank
Switzerland
$417K +$99.6K +5,182 +30%
AC
135
Aristeia Capital
Connecticut
$408K +$422K +21,979 New
SG Americas Securities
136
SG Americas Securities
New York
$393K -$78.5K -4,087 -16%
PAS
137
Park Avenue Securities
New York
$388K +$45.7K +2,381 +13%
Hudson Bay Capital Management
138
Hudson Bay Capital Management
Connecticut
$371K +$384K +20,000 New
HCM
139
Hodges Capital Management
Texas
$371K +$384K +20,000 New
YCM
140
Yousif Capital Management
Michigan
$361K -$7.82K -407 -2%
Manulife (Manufacturers Life Insurance)
141
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$356K -$135K -7,031 -27%
Comerica Bank
142
Comerica Bank
Texas
$352K -$8.22K -428 -2%
BHCM
143
Brevan Howard Capital Management
Jersey
$345K +$357K +18,601 New
IWM
144
IHT Wealth Management
Illinois
$340K +$352K +18,333 New
TRSOTSOK
145
Teachers Retirement System of the State of Kentucky
Kentucky
$333K
Natixis Advisors
146
Natixis Advisors
Massachusetts
$325K +$5.96K +310 +2%
IWC
147
Integrated Wealth Concepts
Massachusetts
$321K -$4.73K -246 -1%
ASRS
148
Arizona State Retirement System
Arizona
$296K -$3.88K -202 -1%
Osaic Holdings
149
Osaic Holdings
Arizona
$291K +$93.9K +4,887 +45%
MSRPS
150
Maryland State Retirement & Pension System
Maryland
$282K -$45.4K -2,365 -13%

CENX Hedge Fund Activity: Q1 2025 in Review

218 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Century Aluminum (CENX) for Q1 2025, worth a combined $1.72B — up 1.8% from $1.68B a quarter earlier.

Fund positioning in CENX was balanced in Q1 2025: 49 funds opened new positions, 49 closed out, 69 added to existing stakes and 80 trimmed.

The largest buyer was Citadel Advisors, adding an estimated $32.1M. The largest seller was Invesco, cutting an estimated $18.7M.

  • 218 institutional investors held Century Aluminum (CENX) as of Q1 2025, down from 222 in Q4 2024.
  • Funds reported $1.72B of Century Aluminum stock for Q1 2025, up 1.8% quarter-over-quarter.
  • 49 funds opened new Century Aluminum positions in Q1 2025 and 49 closed out, a net change of 0 holders.
  • The largest Century Aluminum buyer in Q1 2025 was Citadel Advisors, an estimated $32.1M added.
  • The largest Century Aluminum seller in Q1 2025 was Invesco, an estimated $18.7M sold.

Based on aggregated 13F filings for Q1 2025.