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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, Q3 2024

Institutional positions in Westlake Corp as of Sep 30, 2024. 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
403
+23 vs. Q2 2024
Shares held
33.8M
+3.18M (+10.4%) vs. Q2 2024
Total value
$5.08B
+$644.6M (+14.5%) vs. Q2 2024
New holders
69
147 more added
Sold out
46
123 more reduced

2 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2024: 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 holdersQ3 2024: 403 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 heldQ3 2024: $5.08B
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, Q3 2024

Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q2 2024.

Institutions holding WLK in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Korea Investment CORP5,727$860.7K0.00%−5,083−47.0%Reduced
Achmea Investment Management B.V.5,685$855.0K0.01%00.0%Unchanged
Nordea Investment Management AB5,667$849.3K0.00%+2,817+98.8%Added
Creative Planning5,642$847.9K0.00%−95−1.7%Reduced
Denali Advisors LLC5,422$814.9K0.09%+100+1.9%Added
Quadrature Capital Ltd5,419$814.7K0.02%+5,419New
Xponance, Inc.5,370$807.1K0.01%+105+2.0%Added
Headlands Technologies LLC5,211$783.2K0.09%+4,370+519.6%Added
Zurcher Kantonalbank (Zurich Cantonalbank)5,166$776.4K0.00%00.0%Unchanged
Twin Tree Management, LP5,127$770.5K0.02%−3,063−37.4%Reduced
Unison Advisors LLC5,077$763.0K0.09%+17+0.3%Added
Sequent Planning LLC5,056$759.9K0.26%+500+11.0%Added
Aigen Investment Management, LP4,896$735.8K0.14%+4,896New
Pacer Advisors, Inc.4,873$732.4K0.00%−9,644−66.4%Reduced
Toronto Dominion Bank4,855$729.7K0.00%+1,169+31.7%Added
Nissay Asset Management Corp4,773$717.3K0.00%+142+3.1%Added
Public Employees Retirement Association of Colorado4,753$714.0K0.00%00.0%Unchanged
IFM Investors Pty Ltd4,629$695.7K0.01%−1,078−18.9%Reduced
Advisory Services Network, LLC4,726$684.4K0.01%00.0%Unchanged
Bridgefront Capital, LLC4,507$677.4K0.26%+4,507New
Sumitomo Mitsui DS Asset Management Company, Ltd4,503$676.8K0.01%+2,205+96.0%Added
Voya Investment Management LLC4,362$655.6K0.00%−364−7.7%Reduced
Commonwealth Equity Services, LLC4,266$641.0K0.00%+387+10.0%Added
Atria Wealth Solutions, Inc.4,070$611.7K0.01%−434−9.6%Reduced
Legacy Capital Group California, Inc.4,065$610.9K0.20%−17−0.4%Reduced
Vestcor Inc3,981$598.0K0.02%+41+1.0%Added
SEI Investments Co3,976$597.2K0.00%−10,236−72.0%Reduced
CIBC Asset Management Inc3,911$587.8K0.00%+153+4.1%Added
Kestra Investment Management, LLC3,763$565.5K0.02%+3,763New
Federated Hermes, Inc.3,617$543.6K0.00%−33,780−90.3%Reduced
AXA S.A.3,604$541.6K0.00%−5−0.1%Reduced
TD Asset Management Inc3,608$541.5K0.00%+280+8.4%Added
James Investment Research Inc3,559$534.9K0.06%−40−1.1%Reduced
DekaBank Deutsche Girozentrale3,540$529.0K0.00%−181−4.9%Reduced
MQS Management LLC3,411$512.6K0.29%+3,411New
Allianz Asset Management GmbH3,258$489.6K0.00%−49−1.5%Reduced
Captrust Financial Advisors3,195$480.2K0.00%+17+0.5%Added
Applied Finance Capital Management, LLC3,128$470.1K0.02%−264−7.8%Reduced
Gulf International Bank (UK) Ltd3,068$461.0K0.01%−84−2.7%Reduced
Yorktown Management & Research Co Inc3,050$458.4K0.47%00.0%Unchanged
Daiwa Securities Group Inc.3,024$454.0K0.00%+300+11.0%Added
Neuberger Berman Group LLC3,019$453.7K0.00%+417+16.0%Added
Crossmark Global Holdings, Inc.2,898$436.0K0.01%+643+28.5%Added
Cetera Investment Advisers2,871$431.5K0.00%−4,741−62.3%Reduced
Westover Capital Advisors, LLC2,817$423.4K0.08%−30−1.1%Reduced
Gsa Capital Partners LLP2,796$420.0K0.03%+2,796New
Lindenwold Advisors2,773$416.8K0.21%+34+1.2%Added
Baird Financial Group, Inc.2,765$415.6K0.00%−200−6.7%Reduced
PGGM Investments2,668$401.0K0.01%00.0%Unchanged
Tower Research Capital LLC (TRC)2,646$397.7K0.01%−5,646−68.1%Reduced
Oppenheimer & Co Inc2,624$394.4K0.01%+97+3.8%Added
Securian Asset Management, Inc2,603$391.2K0.01%+100+4.0%Added
Midwest Professional Planners, LTD.2,600$390.8K0.12%+246+10.5%Added
Robeco Institutional Asset Management B.V.2,541$381.9K0.00%+2,541New
Sigma Planning Corp2,531$380.4K0.01%+2,531New
HighTower Advisors, LLC2,497$376.0K0.00%−678−21.4%Reduced
Brown Advisory Inc2,459$369.6K0.00%−70−2.8%Reduced
O'Shaughnessy Asset Management, LLC2,563$369.5K0.00%+165+6.9%Added
Tyche Wealth Partners LLC2,357$354.2K0.08%−150−6.0%Reduced
CIBC World Markets Corp2,248$337.9K0.00%+174+8.4%Added
Stifel Financial Corp2,150$323.2K0.00%−18,622−89.6%Reduced
Advisor Group Holdings, Inc.2,147$322.5K0.00%−132−5.8%Reduced
Rockland Trust Co2,135$320.9K0.02%00.0%Unchanged
Schonfeld Strategic Advisors LLC2,120$318.6K0.00%−4,646−68.7%Reduced
Mariner, LLC2,077$312.1K0.00%−127−5.8%Reduced
Eagle Global Advisors LLC2,066$310.5K0.02%00.0%Unchanged
RSM US Wealth Management LLC2,051$305.9K0.00%+301+17.2%Added
Keybank National Association2,035$305.8K0.00%+382+23.1%Added
Colony Group, LLC2,002$301.0K0.00%+50+2.6%Added
Wolverine Trading, LLC2,003$300.6K0.01%−13,131−86.8%Reduced
Cercano Management LLC1,978$297.3K0.01%+1,978New
Forum Financial Management, LP1,965$295.3K0.00%+2+0.1%Added
Buckingham Strategic Partners1,951$293.2K0.01%−49−2.5%Reduced
Net Worth Advisory Group1,943$292.0K0.09%+1,943New
US Bancorp1,939$291.4K0.00%−53−2.7%Reduced
Ci Investments Inc.1,917$288.0K0.00%+208+12.2%Added
Maryland State Retirement & Pension System1,915$287.8K0.01%−554−22.4%Reduced
CWM Advisors, LLC1,903$286.0K0.03%−6,121−76.3%Reduced
Prudential PLC1,866$280.4K0.00%00.0%Unchanged
ClearAlpha Technologies LP1,828$274.7K0.12%+1,828New
Utah Retirement Systems1,800$270.5K0.00%00.0%Unchanged
Brevan Howard Capital Management LP1,793$269.5K0.01%−5,227−74.5%Reduced
McMahon Financial Advisors, LLC1,790$269.0K0.06%+8+0.4%Added
L2 Asset Management, LLC1,749$262.8K0.07%−73−4.0%Reduced
Franklin Resources Inc1,730$249.4K0.00%−348−16.7%Reduced
Trexquant Investment LP1,627$244.5K0.00%−41,912−96.3%Reduced
Fractal Investments LLC1,600$240.5K0.04%00.0%Unchanged
Northwestern Mutual Wealth Management Co1,555$233.7K0.00%+15+1.0%Added
M&T Bank Corp1,530$229.9K0.00%+41+2.8%Added
Vident Advisory, LLC1,511$227.1K0.01%+1,511New
Kimelman & Baird, LLC1,500$225.4K0.02%00.0%Unchanged
LMR Partners LLP1,498$225.1K0.00%+1,498New
Wetherby Asset Management Inc1,495$224.7K0.01%00.0%Unchanged
Avantax Advisory Services, Inc.1,485$223.1K0.00%+60+4.2%Added
Clarius Group, LLC1,481$222.6K0.02%+5+0.3%Added
Petrus Trust Company, LTA1,458$219.1K0.02%+1,458New
Aaron Wealth Advisors1,392$209.2K0.02%+1,392New
Meiji Yasuda Asset Management Co Ltd.1,391$209.1K0.01%00.0%Unchanged
Trajan Wealth LLC1,389$208.8K0.01%+1,389New
Point72 (DIFC) Ltd1,378$207.1K0.02%−9,252−87.0%Reduced