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Westlake Corp
WLK

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.

New
Increased
Maintained
Reduced
Closed
Holders
303
Holders Change
-54
Holders Change %
-15.13%
% of All Funds
4.06%
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
T. Rowe Price Associates
Maryland
+$155M
2
BIP
Brandes Investment Partners
California
+$78.7M
3
AP
Antipodes Partners
Australia
+$62.5M
4
EGM
Engineers Gate Manager
New York
+$26.4M
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
+$25.5M

Top Sellers

1
Capital World Investors
Capital World Investors
California
-$129M
2
Citadel Advisors
Citadel Advisors
Florida
-$63.8M
3
Balyasny Asset Management
Balyasny Asset Management
Illinois
-$33.6M
4
ICP
Ilex Capital Partners
United Kingdom
-$32.3M
5
BlackRock
BlackRock
New York
-$25.2M
Name Holding Trade Value Shares
Change 		Shares
Change %
AQR Capital Management
51
AQR Capital Management
Connecticut
$10M +$8.6M +114,261 +598%
Russell Investments Group
52
Russell Investments Group
United Kingdom
$9.81M +$954K +12,563 +11%
First Trust Advisors
53
First Trust Advisors
Illinois
$9.71M -$2.93M -38,630 -23%
SI
54
Sprott Inc
Ontario, Canada
$9.49M +$2.66M +35,000 +39%
Invesco
55
Invesco
Georgia
$9.46M -$745K -9,816 -7%
Man Group
56
Man Group
United Kingdom
$9.43M -$1.27M -16,715 -12%
Two Sigma Investments
57
Two Sigma Investments
New York
$9.27M -$10.9M -143,956 -54%
HHAM
58
HITE Hedge Asset Management
Massachusetts
$8.69M +$3.27M +43,012 +60%
Walleye Capital
59
Walleye Capital
New York
$8.52M +$5.91M +77,821 +226%
IG
60
ING Group
Netherlands
$8.46M +$6.21M +81,800 +276%
TRSOTSOK
61
Teachers Retirement System of the State of Kentucky
Kentucky
$7.97M +$7.08M +93,300 +796%
Janney Montgomery Scott
62
Janney Montgomery Scott
Pennsylvania
$7.67M +$3.02M +39,834 +65%
Ameriprise
63
Ameriprise
Minnesota
$7.56M -$1.47M -19,389 -16%
Squarepoint
64
Squarepoint
New York
$7.17M -$10.4M -137,575 -59%
DFCM
65
Dark Forest Capital Management
Puerto Rico
$7.02M +$6.34M +83,503 +929%
RhumbLine Advisers
66
RhumbLine Advisers
Massachusetts
$6.88M -$745K -9,811 -10%
ECM
67
ExodusPoint Capital Management
New York
$6.88M -$24.8M -327,182 -78%
Cerity Partners
68
Cerity Partners
New York
$6.59M +$901K +11,865 +16%
Wells Fargo
69
Wells Fargo
California
$6.49M +$1.84M +24,228 +40%
Balyasny Asset Management
70
Balyasny Asset Management
Illinois
$6.06M -$33.6M -442,029 -85%
Principal Financial Group
71
Principal Financial Group
Iowa
$5.74M -$106K -1,390 -2%
Amundi
72
Amundi
France
$5.7M +$1.55M +18,901 +37%
Legal & General Group
73
Legal & General Group
United Kingdom
$5.7M -$5.31M -69,916 -48%
Lazard Asset Management
74
Lazard Asset Management
New York
$5.62M -$2.84M -37,441 -34%
Citigroup
75
Citigroup
New York
$5.51M +$3.37M +44,374 +157%
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