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Westlake Corp

333 hedge funds and large institutions have $5.15B invested in Westlake Corp in 2026 Q1 according to their latest regulatory filings, with 93 funds opening new positions, 115 increasing their positions, 84 reducing their positions, and 47 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
333
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$26.7M
Puts
$16.9M
Net Calls
Net Calls Change

Top Buyers

1 +$198M
2 +$105M
3 +$87.9M
4
Goldman Sachs
Goldman Sachs
New York
+$62M
5
Citadel Advisors
Citadel Advisors
Florida
+$49.7M

Top Sellers

1 -$235M
2 -$104M
3 -$51.7M
4
Holocene Advisors
Holocene Advisors
New York
-$47.6M
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$40.7M
Name Holding Trade Value Shares
Change
Change in
Stake
State of New Jersey Common Pension Fund D
101
State of New Jersey Common Pension Fund D
New Jersey
$2.76M
ANTB
102
AMG National Trust Bank
Colorado
$2.69M
CII
103
Capital International Inc
California
$2.5M
DFO
104
Duquesne Family Office
New York
$2.48M
AIP
105
Ameritas Investment Partners
Nebraska
$2.39M
SDIC
106
South Dakota Investment Council
South Dakota
$2.36M
Canada Life
107
Canada Life
Manitoba, Canada
$2.34M
American Century Companies
108
American Century Companies
Missouri
$2.34M
KBC Group
109
KBC Group
Belgium
$2.27M
Zurich Cantonal Bank
110
Zurich Cantonal Bank
Switzerland
$2.24M
DIA
111
Dana Investment Advisors
Wisconsin
$2.22M
WorldQuant Millennium Advisors
112
WorldQuant Millennium Advisors
New York
$2.15M
SPS
113
Susquehanna Portfolio Strategies
Pennsylvania
$2.15M
EP
114
Edgestream Partners
New Jersey
$2.07M
MIM
115
MetLife Investment Management
New Jersey
$1.92M
Fifth Third Bancorp
116
Fifth Third Bancorp
Ohio
$1.87M
SAM
117
Storebrand Asset Management
Norway
$1.8M
AB
118
Amalgamated Bank
New York
$1.75M
Susquehanna International Group
119
Susquehanna International Group
Pennsylvania
$1.75M
Barclays
120
Barclays
United Kingdom
$1.69M
SC
121
SummitTX Capital
Texas
$1.67M
Treasurer of the State of North Carolina
122
Treasurer of the State of North Carolina
North Carolina
$1.67M
VGA
123
Vanguard Global Advisers
Pennsylvania
$1.63M
NAMI
124
Nomura Asset Management International
Pennsylvania
$1.62M
LPL Financial
125
LPL Financial
California
$1.53M