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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, Q4 2024

Institutional positions in Westlake Corp as of Dec 31, 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
378
−20 vs. Q3 2024
Shares held
35.3M
+1.62M (+4.8%) vs. Q3 2024
Total value
$4.04B
−$1.01B (−20.0%) vs. Q3 2024
New holders
48
144 more added
Sold out
68
128 more reduced

5 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2024: 378 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 heldQ4 2024: $4.04B
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, Q4 2024

Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q3 2024.

Institutions holding WLK in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
AdvisorNet Financial, Inc1$1150.00%−1−50.0%Reduced
Activest Wealth Management1$1150.00%+1New
Cassady Schiller Wealth Management, LLC1$1150.00%+1New
Financial Management Professionals, Inc.2$2290.00%00.0%Unchanged
SBI Securities Co., Ltd.2$2290.00%+2New
Parkworth Wealth Management, Inc.2$2290.00%+2New
Principia Wealth Advisory, LLC3$3440.00%+3New
Cornerstone Planning Group LLC3$3530.00%+3New
Assetmark, Inc4$4590.00%−5−55.6%Reduced
True Wealth Design, LLC4$4590.00%−2−33.3%Reduced
Valued Wealth Advisors LLC4$4590.00%00.0%Unchanged
Global Financial Private Client, LLC4$4590.00%+4New
SWAN Capital LLC5$5730.00%+5New
Raleigh Capital Management Inc.6$6880.00%00.0%Unchanged
Core Alternative Capital7$8030.00%00.0%Unchanged
Massmutual Trust Co FSB8$9170.00%−43−84.3%Reduced
Nelson, Van Denburg & Campbell Wealth Management Group, LLC8$9170.00%−2−20.0%Reduced
SRS Capital Advisors, Inc.8$9180.00%−63−88.7%Reduced
Picton Mahoney Asset Management8$1.00K0.00%00.0%Unchanged
Penserra Capital Management LLC12$1.00K0.00%00.0%Unchanged
Raffa Wealth Management, LLC9$1.03K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.10$1.15K0.00%−1−9.1%Reduced
Hexagon Capital Partners LLC10$1.15K0.00%+10New
Thurston, Springer, Miller, Herd & Titak, Inc.11$1.26K0.00%−1−8.3%Reduced
Continuum Advisory, LLC12$1.38K0.00%−306−96.2%Reduced
SJS Investment Consulting Inc.12$1.38K0.00%−7−36.8%Reduced
Farmers & Merchants Investments Inc13$1.49K0.00%00.0%Unchanged
Bellwether Advisors, LLC13$1.49K0.00%+13New
Principal Securities, Inc.15$1.72K0.00%−5−25.0%Reduced
Sound Income Strategies, LLC15$1.72K0.00%00.0%Unchanged
Sachetta, LLC15$1.72K0.00%+11+275.0%Added
Bell Investment Advisors, Inc16$1.83K0.00%−6−27.3%Reduced
Caitong International Asset Management Co., Ltd18$2.06K0.00%+18New
Coppell Advisory Solutions LLC19$2.16K0.00%00.0%Unchanged
CoreFirst Bank & Trust20$2.29K0.00%00.0%Unchanged
Larson Financial Group LLC23$2.64K0.00%−9−28.1%Reduced
Harbour Investments, Inc.26$2.98K0.00%−17−39.5%Reduced
Park Square Financial Group, LLC28$3.21K0.00%+28New
Parkside Financial Bank & Trust28$3.21K0.00%−9−24.3%Reduced
Bruce G. Allen Investments, LLC31$3.55K0.00%00.0%Unchanged
Sierra Ocean, LLC31$3.55K0.00%+31New
Zions Bancorporation, N.A.34$3.90K0.00%00.0%Unchanged
First Horizon Advisors, Inc.37$4.24K0.00%+3+8.8%Added
Cetera Trust Company, N.A40$4.59K0.00%00.0%Unchanged
Huntington National Bank40$4.59K0.00%+38+1,900.0%Added
Hemington Wealth Management52$5.00K0.00%+7+15.6%Added
Rothschild Investment LLC45$5.16K0.00%−1−2.2%Reduced
Quest Partners LLC48$5.50K0.00%+42+700.0%Added
Trust Co of Vermont50$5.73K0.00%00.0%Unchanged
Centerpoint Advisors, LLC50$6.00K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC56$6.42K0.00%+30+115.4%Added
Steward Partners Investment Advisory, LLC61$6.99K0.00%−49−44.5%Reduced
Capital Advisors, Ltd. LLC60$7.00K0.00%+30+100.0%Added
Deseret Mutual Benefit Administrators62$7.11K0.00%00.0%Unchanged
Lindbrook Capital, LLC70$8.03K0.00%+44+169.2%Added
JFS Wealth Advisors, LLC72$8.26K0.00%00.0%Unchanged
Twin Tree Management, LP73$8.37K0.00%−5,054−98.6%Reduced
Bryn Mawr Trust Co79$9.06K0.00%00.0%Unchanged
Elequin Capital LP87$9.97K0.00%+87New
Private Wealth Management Group, LLC89$10.2K0.00%+38+74.5%Added
Private Trust Co NA90$10.3K0.00%00.0%Unchanged
Covestor Ltd107$12.0K0.01%00.0%Unchanged
Bessemer Group Inc117$13.0K0.00%+72+160.0%Added
Rise Advisors, LLC115$13.1K0.01%+1+0.9%Added
Quent Capital, LLC116$13.3K0.00%−31−21.1%Reduced
Farther Finance Advisors, LLC119$13.6K0.00%+1+0.8%Added
Jackson, Grant Investment Advisers, Inc.120$13.8K0.01%00.0%Unchanged
CoreCap Advisors, LLC123$14.1K0.00%00.0%Unchanged
Ci Investments Inc.177$20.0K0.00%−1,740−90.8%Reduced
Nisa Investment Advisors, LLC186$21.3K0.00%00.0%Unchanged
Signaturefd, LLC188$21.6K0.00%−74−28.2%Reduced
Natixis195$22.4K0.00%+195New
Umb Bank N A198$22.7K0.00%+121+157.1%Added
Ostrum Asset Management199$22.8K0.00%−10−4.8%Reduced
Livforsakringsbolaget Skandia, Omsesidigt200$22.9K0.00%−18,250−98.9%Reduced
Jones Financial Companies LLLP210$24.1K0.00%+78+59.1%Added
Proequities, Inc.210$24.7K0.00%+10+5.0%Added
CVA Family Office, LLC217$24.9K0.00%+37+20.6%Added
Silicon Valley Capital Partners245$28.1K0.00%+1+0.4%Added
Smartleaf Asset Management LLC252$28.6K0.00%+71+39.2%Added
Pathway Financial Advisers, LLC284$32.5K0.01%+2+0.7%Added
Fifth Third Bancorp299$34.3K0.00%−98−24.7%Reduced
Arcadia Investment Management Corp350$40.1K0.01%00.0%Unchanged
Federation des caisses Desjardins du Quebec359$41.2K0.00%−459−56.1%Reduced
Skopos Labs, Inc.362$41.5K0.01%−48−11.7%Reduced
Parallel Advisors, LLC392$44.9K0.00%−162−29.2%Reduced
Transamerica Financial Advisors, Inc.389$45.0K0.00%+367+1,668.2%Added
Allworth Financial LP385$45.3K0.00%+379+6,316.7%Added
CWM, LLC461$53.0K0.00%+114+32.9%Added
GAMMA Investing LLC523$60.0K0.01%+219+72.0%Added
Versant Capital Management, Inc531$60.9K0.01%+243+84.4%Added
Itau Unibanco Holding S.A.537$61.6K0.00%+84+18.5%Added
GWM Advisors LLC558$64.0K0.00%00.0%Unchanged
Aster Capital Management (DIFC) Ltd603$69.1K0.03%−37−5.8%Reduced
BI Asset Management Fondsmaeglerselskab A/S622$71.0K0.00%+622New
Wahed Invest LLC666$76.4K0.01%−146−18.0%Reduced
Quadrant Capital Group LLC724$83.0K0.01%−109−13.1%Reduced
Venturi Wealth Management, LLC789$90.5K0.00%+490+163.9%Added
The PNC Financial Services Group, Inc.1,237$141.8K0.00%−37−2.9%Reduced
MAI Capital Management1,310$150.2K0.00%+1,310New