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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.

13F holders, Q2 2023

Institutional positions in Westlake Corp as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
340
−1 vs. Q1 2023
Shares held
37.0M
−1.34M (−3.5%) vs. Q1 2023
Total value
$4.42B
+$15.4M (+0.4%) vs. Q1 2023
New holders
45
104 more added
Sold out
46
128 more reduced

1 institution that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting WLK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2023: 340 institutions
Q1 2021: 240 institutionsQ2 2021: 276 institutionsQ3 2021: 272 institutionsQ4 2021: 298 institutionsQ1 2022: 328 institutionsQ2 2022: 355 institutionsQ3 2022: 321 institutionsQ4 2022: 344 institutionsQ1 2023: 342 institutionsQ2 2023: 340 institutionsQ3 2023: 335 institutionsQ4 2023: 357 institutionsQ1 2024: 347 institutionsQ2 2024: 382 institutionsQ3 2024: 403 institutionsQ4 2024: 378 institutionsQ1 2025: 361 institutionsQ2 2025: 306 institutionsQ3 2025: 305 institutionsQ4 2025: 298 institutionsQ1 2026: 339 institutionsQ2 2026: 360 institutions
Value heldQ2 2023: $4.42B
Q1 2021: $3.09BQ2 2021: $3.02BQ3 2021: $3.15BQ4 2021: $3.37BQ1 2022: $4.38BQ2 2022: $3.50BQ3 2022: $3.03BQ4 2022: $3.73BQ1 2023: $4.40BQ2 2023: $4.42BQ3 2023: $4.64BQ4 2023: $5.04BQ1 2024: $5.29BQ2 2024: $4.93BQ3 2024: $5.08BQ4 2024: $4.04BQ1 2025: $3.64BQ2 2025: $2.99BQ3 2025: $3.20BQ4 2025: $3.43BQ1 2026: $5.15BQ2 2026: $2.90B
Institutions holding WLK and their total value by quarter
QuarterHoldersValue
Q2 2026360$2.90B
Q1 2026339$5.15B
Q4 2025298$3.43B
Q3 2025305$3.20B
Q2 2025306$2.99B
Q1 2025361$3.64B
Q4 2024378$4.04B
Q3 2024403$5.08B
Q2 2024382$4.93B
Q1 2024347$5.29B
Q4 2023357$5.04B
Q3 2023335$4.64B
Q2 2023340$4.42B
Q1 2023342$4.40B
Q4 2022344$3.73B
Q3 2022321$3.03B
Q2 2022355$3.50B
Q1 2022328$4.38B
Q4 2021298$3.37B
Q3 2021272$3.15B
Q2 2021276$3.02B
Q1 2021240$3.09B

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q1 2023.

Institutions holding WLK in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Luminus Management LLC121,649$14.5M4.37%+3,049+2.6%Added
UBS Asset Management Americas Inc128,242$14.9M0.01%00.0%Unchanged
Principal Financial Group Inc129,251$15.4M0.01%−6,885−5.1%Reduced
Ameriprise Financial Inc130,603$15.6M0.00%−1,156−0.9%Reduced
American Century Companies Inc134,170$16.0M0.01%−27,867−17.2%Reduced
Swiss National Bank137,800$16.5M0.01%−13,900−9.2%Reduced
Scout Investments, Inc.130,147$17.4M0.35%−14,555−10.1%Reduced
Janus Henderson Group PLC146,574$17.5M0.01%−49,055−25.1%Reduced
Guggenheim Capital LLC146,996$17.6M0.14%+7,434+5.3%Added
Storebrand Asset Management AS153,447$18.3M0.08%−2,240−1.4%Reduced
Erste Asset Management GmbH163,370$19.5M0.34%−181−0.1%Reduced
Key Group Holdings (Cayman), Ltd.180,000$21.5M1.52%+125,000+227.3%Added
Invesco Ltd.194,996$23.3M0.01%−56,312−22.4%Reduced
Legal & General Group Plc216,550$25.9M0.01%−10,855−4.8%Reduced
Grantham, Mayo, Van Otterloo & Co. LLC225,522$26.9M0.12%−11,178−4.7%Reduced
Robotti Robert228,359$27.3M4.41%−857−0.4%Reduced
ProShare Advisors LLC290,185$34.7M0.10%−22,454−7.2%Reduced
AQR Capital Management LLC292,773$34.7M0.07%−176,709−37.6%Reduced
Morgan Stanley313,786$37.5M0.00%−18,112−5.5%Reduced
Northern Trust Corp316,487$37.8M0.01%+13,173+4.3%Added
Allspring Global Investments Holdings, LLC342,923$41.0M0.07%−760−0.2%Reduced
Charles Schwab Investment Management Inc353,055$42.2M0.01%+8,255+2.4%Added
Norges Bank365,931$43.7M0.01%+33,649+10.1%Added
Bank of New York Mellon Corp403,091$48.2M0.01%−13,301−3.2%Reduced
Federated Hermes, Inc.477,144$57.0M0.14%−1790.0%Reduced
Geode Capital Management, LLC486,009$58.0M0.01%+15,543+3.3%Added
First Trust Advisors LP520,211$62.1M0.07%−505,031−49.3%Reduced
Nuveen Asset Management, LLC521,129$62.3M0.02%−29,530−5.4%Reduced
Mirae Asset Global Investments Co., Ltd.619,009$74.0M0.16%+50,434+8.9%Added
Goldman Sachs Group Inc776,556$92.8M0.02%+39,115+5.3%Added
Citadel Advisors LLC833,349$99.6M0.11%−393,027−32.0%Reduced
Soroban Capital Partners LP898,837$107.4M1.45%−454,024−33.6%Reduced
Pacer Advisors, Inc.1,161,141$138.7M0.56%−26,253−2.2%Reduced
State Street Corp1,164,284$139.1M0.01%+20,212+1.8%Added
Dimensional Fund Advisors LP1,251,871$149.6M0.05%−218,579−14.9%Reduced
Orbis Allan Gray Ltd2,915,029$348.3M2.49%+853,129+41.4%Added
Victory Capital Management Inc3,405,575$406.9M0.45%+84,846+2.6%Added
Vanguard Group Inc3,449,521$412.1M0.01%−12,231−0.4%Reduced
BlackRock Inc.3,803,250$454.4M0.01%+236,332+6.6%Added
FMR LLC4,534,823$541.8M0.05%+310,182+7.3%Added
Appian Way Asset Management LP0$00.00%−253,283−100.0%Sold out
Anomaly Capital Management, LP0$00.00%−113,850−100.0%Sold out
Swedbank AB0$00.00%−28,953−100.0%Sold out
PointState Capital LP0$00.00%−25,986−100.0%Sold out
D. E. Shaw & Co., Inc.0$00.00%−22,887−100.0%Sold out
Navellier & Associates Inc0$00.00%−16,413−100.0%Sold out
LMR Partners LLP0$00.00%−12,629−100.0%Sold out
Aventail Capital Group, LP0$00.00%−10,000−100.0%Sold out
CFO4Life Group, LLC0$00.00%−6,397−100.0%Sold out
Burns Matteson Capital Management, LLC0$00.00%−6,127−100.0%Sold out
Winton Group Ltd0$00.00%−5,045−100.0%Sold out
Jefferies Financial Group Inc.0$00.00%−4,500−100.0%Sold out
BNP PARIBAS ASSET MANAGEMENT Holding S.A.0$00.00%−4,141−100.0%Sold out
Mount Lucas Management LP0$00.00%−4,123−100.0%Sold out
Acrisure Capital Management, LLC0$00.00%−4,016−100.0%Sold out
Westpac Banking Corp0$00.00%−3,454−100.0%Sold out
L2 Asset Management, LLC0$00.00%−2,932−100.0%Sold out
Hennion & Walsh Asset Management, Inc.0$00.00%−2,912−100.0%Sold out
Private Advisor Group, LLC0$00.00%−2,887−100.0%Sold out
Prospera Financial Services Inc0$00.00%−2,720−100.0%Sold out
Raymond James Financial Services Advisors, Inc.0$00.00%−2,668−100.0%Sold out
Kennedy Capital Management, Inc.0$00.00%−2,659−100.0%Sold out
CSS LLC0$00.00%−2,500−100.0%Sold out
Grey Fox Wealth Advisors, LLC0$00.00%−2,468−100.0%Sold out
Harel Insurance Investments & Financial Services Ltd.0$00.00%−2,482−100.0%Sold out
Stifel Financial Corp0$00.00%−2,045−100.0%Sold out
FORA Capital, LLC0$00.00%−1,858−100.0%Sold out
Mariner, LLC0$00.00%−1,840−100.0%Sold out
Wetherby Asset Management Inc0$00.00%−1,767−100.0%Sold out
Industrial Alliance Investment Management Inc.0$00.00%−1,707−100.0%Sold out
Belpointe Asset Management LLC0$00.00%−1,181−100.0%Sold out
Altshuler Shaham Ltd0$00.00%−1,080−100.0%Sold out
AlphaCentric Advisors LLC0$00.00%−801−100.0%Sold out
Advisory Services Network, LLC0$00.00%−677−100.0%Sold out
First Horizon Advisors, Inc.0$00.00%−470−100.0%Sold out
Orion Capital Management LLC0$00.00%−400−100.0%Sold out
Smithfield Trust Co0$00.00%−379−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−194−100.0%Sold out
BI Asset Management Fondsmaeglerselskab A/S0$00.00%−168−100.0%Sold out
Group One Trading, L.P.0$00.00%−138−100.0%Sold out
Loomis Sayles & Co L P0$00.00%−71−100.0%Sold out
Schubert & Co0$00.00%−28−100.0%Sold out
Bellwether Advisors, LLC0$00.00%−13−100.0%Sold out
Versant Capital Management, Inc0$00.00%−8−100.0%Sold out
Hexagon Capital Partners LLC0$00.00%−6−100.0%Sold out
Allworth Financial LP0$00.00%−4−100.0%Sold out
Pathway Financial Advisers, LLC––––Not filed