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Westlake Corp

356 hedge funds and large institutions have $3.59B invested in Westlake Corp in 2025 Q1 according to their latest regulatory filings, with 46 funds opening new positions, 146 increasing their positions, 113 reducing their positions, and 62 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more ownership

Funds ownership:

more funds holding in top 10

Funds holding in top 10:

less funds holding

Funds holding:

11% less capital invested

Capital invested by funds: $4.03B → $3.59B (-$437M)

26% less first-time investments, than exits

New positions opened: 46 | Existing positions closed: 62

96% less call options, than puts

Call options by funds: $2.95M | Put options by funds: $68.4M

Holders
356
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
$2.95M
Puts
$68.4M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Kovitz Investment Group Partners
126
Kovitz Investment Group Partners
Illinois
$1.47M
ACM
127
Aquatic Capital Management
Illinois
$1.41M
New York State Common Retirement Fund
128
New York State Common Retirement Fund
New York
$1.4M
OLA
129
Oliver Luxxe Assets
New Jersey
$1.39M
MSV
130
MN Services Vermogensbeheer
Netherlands
$1.37M
GF
131
Gries Financial
Ohio
$1.35M
FA
132
Faithward Advisors
Pennsylvania
$1.32M
Korea Investment Corp
133
Korea Investment Corp
South Korea
$1.26M
Asset Management One
134
Asset Management One
Japan
$1.23M
YCM
135
Yousif Capital Management
Michigan
$1.21M
KK
136
KLP Kapitalforvaltning
Norway
$1.19M
RAM
137
Resona Asset Management
Japan
$1.17M
TRSOTSOK
138
Teachers Retirement System of the State of Kentucky
Kentucky
$1.17M
AIP
139
Ameritas Investment Partners
Nebraska
$1.17M
Corient Private Wealth
140
Corient Private Wealth
Florida
$1.17M
KTA
141
Keeley-Teton Advisors
Illinois
$1.16M
ASRS
142
Arizona State Retirement System
Arizona
$1.12M
Susquehanna International Group
143
Susquehanna International Group
Pennsylvania
$1.11M
Nomura Asset Management
144
Nomura Asset Management
Japan
$1.06M
HSBC Holdings
145
HSBC Holdings
United Kingdom
$1.06M
AIM
146
Aigen Investment Management
New York
$1.06M
Ohio Public Employees Retirement System (OPERS)
147
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.03M
IFU
148
iSAM Funds (UK)
United Kingdom
$1.03M
AC
149
AXQ Capital
New Jersey
$1.01M
Aberdeen Group
150
Aberdeen Group
United Kingdom
$1M