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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.

Q2 2026 vs. Q1 2026

How the institutions holding Westlake Corp changed between Q1 2026 and Q2 2026.

All holders in Q2 2026All holders in Q1 2026

13F holders of WLK: Q1 2026 compared with Q2 2026
MeasureQ1 2026Of which not filed for Q2 2026Q2 2026Change
Holders3393360+24
Shares44.1M277.7K39.7M−4.10M (−9.4%)
Value$5.15B$32.4M$2.90B−$2.21B (−43.2%)

3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (88)

Institutions that held Westlake Corp at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to WLK in Q2 2026
InstitutionSharesValue% of portfolio
ExodusPoint Capital Management, LP327,195$23.9M0.22%
Qube Research & Technologies Ltd321,718$23.5M0.03%
Jupiter Topco LLC267,748$19.5M0.01%
Norges Bank214,101$15.6M0.00%
Jump Financial, LLC209,861$15.3M0.14%
Campbell & CO Investment Adviser LLC148,180$10.8M0.57%
Lighthouse Investment Partners, LLC135,361$9.88M0.31%
HRT Financial LP116,395$8.50M0.02%
Marshall Wace, LLP111,574$8.14M0.01%
Tudor Investment Corp Et Al110,710$8.08M0.03%
Point72 Asset Management, L.P.89,731$6.55M0.01%
Alberta Investment Management Corp89,200$6.51M0.04%
Natixis77,117$5.63M0.03%
Turas Capital Management LP58,800$4.29M1.97%
Assenagon Asset Management S.A.55,289$4.04M0.01%
Axq Capital, LP51,437$3.75M0.41%
Mariner, LLC47,319$3.45M0.00%
Two Sigma Investments, LP45,357$3.31M0.00%
HITE Hedge Asset Management LLC34,589$2.52M0.14%
Acadian Asset Management LLC34,498$2.52M0.00%
Abn Amro Investment Solutions31,597$2.31M0.02%
Freestone Grove Partners LP27,248$1.99M0.01%
HSBC Holdings PLC23,272$1.70M0.00%
Vident Advisory, LLC23,139$1.69M0.01%
Entropy Technologies, LP20,610$1.50M0.06%
Brevan Howard Capital Management LP18,251$1.33M0.02%
Magnetar Financial LLC16,922$1.24M0.01%
Credit Agricole S A16,285$1.19M0.00%
Bleakley Financial Group, LLC15,907$1.16M0.01%
Neo Ivy Capital Management13,509$986.2K0.23%
Twin Capital Management Inc13,135$958.9K0.10%
Graham Capital Management, L.P.10,704$781.4K0.02%
Mirabella Financial Services LLP10,550$770.1K0.07%
Fieldview Capital Management, LLC9,445$689.5K0.20%
Healthcare of Ontario Pension Plan Trust Fund9,370$684.0K0.00%
Macquarie Group Ltd9,193$671.1K0.00%
Bridgefront Capital, LLC9,068$662.0K0.17%
Captrust Financial Advisors8,087$590.4K0.00%
Numerai GP LLC8,035$586.6K0.05%
Chicago Partners Investment Group LLC6,931$521.4K0.01%
Dark Forest Capital Management LP6,817$497.6K0.03%
Pinnacle Financial Partners, Inc.6,813$497.3K0.00%
Oxford Asset Management LLP6,291$459.2K0.23%
Ieq Capital, LLC6,267$457.5K0.00%
Two Sigma Securities, LLC6,190$451.9K0.04%
Brighton Jones LLC5,843$426.5K0.01%
Fox Run Management, L.L.C.5,393$393.7K0.07%
Colony Group, LLC5,312$387.8K0.00%
Y-Intercept (Hong Kong) Ltd5,128$374.3K0.01%
Centiva Capital, LP5,037$367.7K0.01%
Aquatic Capital Management LLC4,884$356.5K0.01%
Scientech Research LLC4,813$351.3K0.28%
Daiwa Securities Group Inc.4,785$349.3K0.00%
Farringdon Capital, Ltd.4,583$334.6K0.17%
Jain Global LLC4,093$298.8K0.00%
111 Capital4,081$297.9K0.05%
Arrowstreet Capital, Limited Partnership4,031$294.3K0.00%
Buckingham Strategic Partners3,912$285.6K0.00%
Merit Financial Group, LLC3,859$281.7K0.00%
RMB Capital Management, LLC3,841$280.4K0.00%
Core Capital Management & Research, inc.3,339$263.5K0.14%
Aigen Investment Management, LP3,496$255.2K0.07%
NorthCrest Asset Manangement, LLC3,214$239.4K0.01%
Landscape Capital Management, L.L.C.3,072$224.3K0.01%
Bull Harbor Capital LLC2,867$209.3K0.04%
Qsemble Capital Management, LP2,814$205.4K0.03%
HB Wealth Management, LLC2,768$202.1K0.00%
Bayforest Capital Ltd2,728$199.1K0.18%
Lloyd Advisory Services, LLC.2,472$180.4K0.07%
Caitong International Asset Management Co., Ltd2,253$164.5K0.02%
Mitsubishi UFJ Trust & Banking Corp1,723$125.8K0.00%
Nykredit A/S948$69.2K0.00%
Trust Co of Vermont50$3.65K0.00%
Action Point Financial Planning, LLC45$3.14K0.00%
Global Retirement Partners, LLC42$3.07K0.00%
GoalVest Advisory LLC26$1.90K0.00%
Creative Capital Management Investments LLC25$1.82K0.00%
Planning Strategies Inc.12$8760.00%
Owl Creek Wealth Partners LLC10$7300.00%
Bell Investment Advisors, Inc7$5110.00%
Financial Consulate, Inc6$4380.00%
LRI Investments, LLC4$2920.00%
Maryland Capital Advisors Inc.3$2190.00%
Rossby Financial, LCC3$2190.00%
DecisionPoint Financial, LLC2$1460.00%
Abound Wealth Management1$730.00%
Evolution Advisers, Inc.3$00.00%
Navigoe, LLC5$00.00%

Sold out (64)

Institutions that held Westlake Corp at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of WLK in Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
Holocene Advisors, LP730,035$85.3M
Deprince Race & Zollo Inc203,366$23.8M
Ceredex Value Advisors LLC177,900$20.8M
Yaupon Capital Management LP107,044$12.5M
Lloyd Harbor Capital Management, LLC62,000$7.24M
Rokos Capital Management LLP60,800$7.10M
Albar Capital Partners LLP48,814$5.70M
BCJ Capital Management, LLC45,296$5.29M
Twin Tree Management, LP35,977$4.20M
Boston Partners31,696$3.70M
Occam Crest Management LP29,256$3.42M
California Public Employees Retirement System25,000$2.92M
AMG National Trust Bank23,041$2.69M
Duquesne Family Office LLCSuperinvestorDuquesne Family Office21,194$2.48M
Edgestream Partners, L.P.17,681$2.07M
Nomura Asset Management International Inc.13,868$1.62M
Walnut Level Capital LLC10,000$1.17M
Commonwealth of Pennsylvania Public School Empls Retrmt Sys8,356$976.1K
Winton Group Ltd8,229$961.3K
Aster Capital Management (DIFC) Ltd9,428$943.1K
Capital Group Investment Management Pte. Ltd.7,693$898.7K
Gateway Investment Advisers LLC7,147$834.9K
Concentric Capital Strategies, LP6,517$761.3K
CAPROCK Group, Inc.5,171$604.1K
Thompson Siegel & Walmsley LLC2,976$348.0K
Twinbeech Capital LP2,950$344.6K
Raymond James Financial Inc2,931$342.4K
ISAM Funds (UK) Ltd2,835$331.2K
Archer Investment Corp2,493$291.2K
Voya Investment Management LLC2,436$284.6K
McMahon Financial Advisors, LLC2,382$278.3K
HighTower Advisors, LLC2,305$269.3K
Swiss Life Asset Management Ltd2,253$263.2K
Prudential Financial Inc2,228$260.3K
Empowered Funds, LLC2,162$252.6K
Sivia Capital Partners, LLC2,099$245.2K
Eagle Global Advisors LLC2,066$241.3K
Callan Family Office, LLC2,017$235.6K
Amundi1,997$233.3K
Cercano Management LLC1,978$231.1K
Maryland State Retirement & Pension System1,915$223.7K
Greenland Capital Management LP1,812$211.7K
Utah Retirement Systems1,800$210.3K
Laird Norton Trust Company, LLC1,752$204.7K
Oppenheimer & Co Inc1,735$202.7K
Pickering Energy Partners LP1,000$116.8K
Walleye Trading LLC514$60.0K
RWM Asset Management, LLC510$59.6K
Quadrant Capital Group LLC382$44.6K
Advisory Services Network, LLC187$21.8K
Root Financial Partners, LLC172$20.1K
Ancora Advisors, LLC97$11.3K
Golden State Equity Partners66$7.71K
Atlas Capital Advisors LLC14$1.64K
Steward Partners Investment Advisory, LLC10$1.17K
Picton Mahoney Asset Management8$935
ZRC Wealth Management, LLC7$818
Vermillion Wealth Management, Inc.6$701
Twin Peaks Wealth Advisors, LLC4$467
Investors Portfolio Services LLC4$376
TopTier Wealth Management, LLC3$350
Northwestern Mutual Wealth Management Co2$234
Curio Wealth, LLC2$234
Bartlett & Co. Wealth Management LLC1$115

Not filed for Q2 2026 yet (3)

Institutions that held Westlake Corp at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding WLK in Q1 2026 that haven't filed for Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
Janus Henderson Group PLC269,783$31.5M
Skopos Labs, Inc.5,705$666.5K
CWM, LLC2,249$262.7K