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Westlake Corp

WLK
Exchange
NYSE
Industry
Industrial Organic Chemicals
SEC CIK
0001262823

In the last 90 days, Westlake Corp insiders filed 0 open-market purchases and 1 sale; 360 institutions reported holding it in 13F filings for Q2 2026, worth $2.90B in total; no superinvestor holds it.

Q3 2023 vs. Q2 2023

How the institutions holding Westlake Corp changed between Q2 2023 and Q3 2023.

All holders in Q3 2023All holders in Q2 2023

13F holders of WLK: Q2 2023 compared with Q3 2023
MeasureQ2 2023Of which not filed for Q3 2023Q3 2023Change
Holders3403335−2
Shares37.0M31.6K37.2M+308.4K (+0.8%)
Value$4.42B$3.77M$4.64B+$231.6M (+5.2%)

3 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (36)

Institutions that held Westlake Corp at the end of Q3 2023 but not at the end of Q2 2023.

Institutions new to WLK in Q3 2023
InstitutionSharesValue% of portfolio
Capital World Investors636,111$79.3M0.02%
Samlyn Capital, LLC316,731$39.5M0.70%
Vident Advisory, LLC85,426$10.7M0.33%
D. E. Shaw & Co., Inc.32,255$4.02M0.01%
QRG Capital Management, Inc.24,216$3.02M0.05%
South Dakota Investment Council24,155$3.01M0.07%
HRT Financial LP20,423$2.55M0.03%
Two Sigma Advisers, LP15,900$1.98M0.01%
Swiss Life Asset Management Ltd15,626$1.95M0.03%
Pictet Asset Management Holding SA12,313$1.54M0.00%
BI Asset Management Fondsmaeglerselskab A/S10,343$1.29M0.03%
Aquatic Capital Management LLC9,500$1.18M0.05%
Wealthfront Advisers LLC9,039$1.13M0.00%
Voloridge Investment Management, LLC7,438$927.3K0.00%
Arrowstreet Capital, Limited Partnership6,375$795.0K0.00%
MQS Management LLC6,334$789.7K0.48%
Oak Thistle LLC5,839$727.9K0.22%
Quantamental Technologies LLC3,994$497.9K0.47%
Engineers Gate Manager LP3,588$447.3K0.02%
Creative Planning3,189$397.6K0.00%
Qube Research & Technologies Ltd2,629$327.8K0.00%
CSS LLC2,500$311.7K0.03%
Lighthouse Investment Partners, LLC2,148$267.8K0.02%
Asahi Life Asset Management Co., Ltd.2,070$258.1K0.09%
Nebula Research & Development LLC1,996$248.8K0.13%
Midwest Professional Planners, LTD.1,785$222.5K0.10%
Boothbay Fund Management, LLC1,767$220.3K0.01%
Mariner, LLC1,689$210.6K0.00%
Pathstone Family Office, LLC1,668$207.9K0.00%
Capstone Investment Advisors, LLC1,653$206.1K0.01%
Penserra Capital Management LLC809$100.0K0.00%
State of Wyoming682$85.0K0.02%
Pathway Financial Advisers, LLC347$43.3K0.02%
Baker Avenue Asset Management, LP58$7.23K0.00%
Steward Financial Group LLC63$7.00K0.00%
Whittier Trust Co3$3740.00%

Sold out (38)

Institutions that held Westlake Corp at the end of Q2 2023 and filed for Q3 2023 without it.

Not filed for Q3 2023 yet (3)

Institutions that held Westlake Corp at the end of Q2 2023 and haven't filed a 13F for Q3 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding WLK in Q2 2023 that haven't filed for Q3 2023
InstitutionShares, Q2 2023Value, Q2 2023
EA Series Trust16,476$1.97M
Pictet Asset Management SA11,762$1.41M
Kistler-Tiffany Companies, LLC3,322$396.9K