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Westlake Corp
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Overview Fund Activity

303 hedge funds and large institutions have $2.99B invested in Westlake Corp in 2025 Q2 according to their latest regulatory filings, with 46 funds opening new positions, 124 increasing their positions, 103 reducing their positions, and 94 closing their positions.

Holders
303
Holders Change
-54
Holders Change %
-15.13%
% of All Funds
4.07%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.03%
New
46
Increased
124
Reduced
103
Closed
94
Calls
$19.5M
Puts
$58.1M
Net Calls
-$38.6M
Net Calls Change
+$26.8M

Top Buyers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$156M
2
BIP
2
Brandes Investment Partners
California
$111M
3
AP
3
Antipodes Partners
Australia
$62.5M
4
EGM
4
Engineers Gate Manager
New York
$26.7M
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$96.8M

Top Sellers

1
Capital World Investors
1
Capital World Investors
California
$0
2
Citadel Advisors
2
Citadel Advisors
Florida
$934K
3
Balyasny Asset Management
3
Balyasny Asset Management
Illinois
$6.06M
4
ICP
4
Ilex Capital Partners
United Kingdom
$20.8M
5
BlackRock
5
BlackRock
New York
$253M
Name Holding Trade Value Shares
Change 		Shares
Change %
GI
126
GAMCO Investors
Connecticut
$878K +$878K +11,566 New
QC
127
Quadrature Capital
United Kingdom
$865K +$690K +9,094 +396%
OAC
128
OMERS Administration Corp
Ontario, Canada
$864K +$864K +11,380 New
Creative Planning
129
Creative Planning
Kansas
$848K +$239K +3,147 +39%
SSA
130
Schonfeld Strategic Advisors
New York
$827K -$634K -8,345 -43%
Ohio Public Employees Retirement System (OPERS)
131
Ohio Public Employees Retirement System (OPERS)
Ohio
$788K +$3.72K +49 +0.5%
Aberdeen Group
132
Aberdeen Group
United Kingdom
$767K +$7.37K +97 +1%
VPIM
133
Vanguard Personalized Indexing Management
California
$763K +$135K +1,780 +22%
Sumitomo Mitsui Trust Group
134
Sumitomo Mitsui Trust Group
Japan
$745K -$5.26M -69,272 -88%
LSERS
135
Louisiana State Employees Retirement System
Louisiana
$714K – – –
XT
136
XTX Topco
Cayman Islands
$712K -$427K -5,618 -37%
Pathstone Holdings
137
Pathstone Holdings
New Jersey
$684K +$160K +2,112 +31%
Universal-Beteiligungs- und Servicegesellschaft
138
Universal-Beteiligungs- und Servicegesellschaft
Germany
$675K +$462K +6,080 +216%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
139
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$668K -$1.68M -22,100 -72%
COPPSERS
140
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$650K +$43.1K +568 +7%
Handelsbanken Fonder
141
Handelsbanken Fonder
Sweden
$645K -$7.59K -100 -1%
Marshall Wace
142
Marshall Wace
United Kingdom
$616K +$616K +8,111 New
SOMRS
143
State of Michigan Retirement System
Michigan
$607K -$75.9K -1,000 -11%
QCG
144
Quadrant Capital Group
Ohio
$603K +$401K +5,283 +199%
Thrivent Financial for Lutherans
145
Thrivent Financial for Lutherans
Minnesota
$596K +$304 +4 +0.1%
FC
146
FORA Capital
Florida
$595K +$595K +7,832 New
CI Investments Inc
147
CI Investments Inc
Ontario, Canada
$584K +$572K +7,531 +4,592%
ET
148
Entropy Technologies
New York
$581K +$252K +3,324 +77%
AAM
149
Advisors Asset Management
Colorado
$581K +$1.9K +25 +0.3%
NMIMC
150
Northwestern Mutual Investment Management Company
Wisconsin
$565K +$304 +4 +0.1%
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6
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