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 2021
Institutional positions in Westlake Corp as of Sep 30, 2021. 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
- 272
- 0 vs. Q2 2021
- Shares held
- 34.5M
- +981.4K (+2.9%) vs. Q2 2021
- Total value
- $3.15B
- +$128.0M (+4.2%) vs. Q2 2021
- New holders
- 41
- 104 more added
- Sold out
- 41
- 84 more reduced
4 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 360 | $2.90B |
| Q1 2026 | 339 | $5.15B |
| Q4 2025 | 298 | $3.43B |
| Q3 2025 | 305 | $3.20B |
| Q2 2025 | 306 | $2.99B |
| Q1 2025 | 361 | $3.64B |
| Q4 2024 | 378 | $4.04B |
| Q3 2024 | 403 | $5.08B |
| Q2 2024 | 382 | $4.93B |
| Q1 2024 | 347 | $5.29B |
| Q4 2023 | 357 | $5.04B |
| Q3 2023 | 335 | $4.64B |
| Q2 2023 | 340 | $4.42B |
| Q1 2023 | 342 | $4.40B |
| Q4 2022 | 344 | $3.73B |
| Q3 2022 | 321 | $3.03B |
| Q2 2022 | 355 | $3.50B |
| Q1 2022 | 328 | $4.38B |
| Q4 2021 | 298 | $3.37B |
| Q3 2021 | 272 | $3.15B |
| Q2 2021 | 276 | $3.02B |
| Q1 2021 | 240 | $3.09B |
Institutions, Q3 2021
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capula Management Ltd | 2,873 | $262.0K | 0.02% | +2,873 | New |
| New York State Teachers Retirement System | 2,800 | $255.0K | 0.00% | −100−3.4% | Reduced |
| Principal Financial Group Inc | 2,764 | $252.0K | 0.00% | −106−3.7% | Reduced |
| Ergoteles LLC | 2,746 | $250.0K | 0.01% | +2,746 | New |
| Boothbay Fund Management, LLC | 2,734 | $249.0K | 0.01% | +2,734 | New |
| Los Angeles Capital Management LLC | 2,682 | $244.0K | 0.00% | −2,270−45.8% | Reduced |
| Manufacturers Life Insurance Company, The | 2,620 | $239.0K | 0.00% | 00.0% | Unchanged |
| Fox Run Management, L.L.C. | 2,590 | $236.0K | 0.15% | −763−22.8% | Reduced |
| Quantinno Capital Management LP | 2,576 | $235.0K | 0.26% | +8+0.3% | Added |
| Synovus Financial Corp | 2,542 | $230.0K | 0.00% | −1,473−36.7% | Reduced |
| ProShare Advisors LLC | 2,487 | $227.0K | 0.00% | −470−15.9% | Reduced |
| XTX Topco Ltd | 2,454 | $224.0K | 0.08% | +2,454 | New |
| Shay Capital LLC | 2,423 | $221.0K | 0.07% | +2,423 | New |
| US Bancorp | 2,390 | $218.0K | 0.00% | +204+9.3% | Added |
| Storebrand Asset Management AS | 2,085 | $190.0K | 0.00% | 00.0% | Unchanged |
| Asset Management One Co.,Ltd. | 1,930 | $175.0K | 0.00% | 00.0% | Unchanged |
| Gulf International Bank (UK) Ltd | 1,600 | $170.0K | 0.00% | 00.0% | Unchanged |
| Smithfield Trust Co | 1,594 | $145.0K | 0.01% | 00.0% | Unchanged |
| Macquarie Group Ltd | 1,422 | $130.0K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 1,281 | $116.0K | 0.00% | −204−13.7% | Reduced |
| State of Wyoming | 1,258 | $115.0K | 0.07% | −14−1.1% | Reduced |
| Simplex Trading, LLC | 1,112 | $101.0K | 0.00% | 00.0% | Unchanged |
| Eaton Vance Management | 1,000 | $91.0K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 971 | $88.5K | 0.00% | −36−3.6% | Reduced |
| Itau Unibanco Holding S.A. | 933 | $85.0K | 0.00% | +933 | New |
| Denali Advisors LLC | 668 | $61.0K | 0.03% | +6+0.9% | Added |
| Captrust Financial Advisors | 655 | $60.0K | 0.00% | −842−56.2% | Reduced |
| Quadrant Capital Group LLC | 545 | $50.0K | 0.01% | +15+2.8% | Added |
| Koshinski Asset Management, Inc. | 517 | $40.8K | 0.00% | +517 | New |
| American International Group, Inc. | 425 | $39.0K | 0.00% | −46−9.8% | Reduced |
| Berman Capital Advisors, LLC | 429 | $39.0K | 0.01% | +206+92.4% | Added |
| Arcadia Investment Management Corp | 350 | $32.0K | 0.01% | 00.0% | Unchanged |
| Deseret Mutual Benefit Administrators | 317 | $29.0K | 0.01% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 294 | $27.0K | 0.00% | +95+47.7% | Added |
| Proequities, Inc. | 209 | $19.0K | 0.00% | +9+4.5% | Added |
| TCI Wealth Advisors, Inc. | 190 | $17.0K | 0.00% | +187+6,233.3% | Added |
| Financial Management Professionals, Inc. | 180 | $16.0K | 0.00% | +39+27.7% | Added |
| Nisa Investment Advisors, LLC | 160 | $15.0K | 0.00% | 00.0% | Unchanged |
| Dark Forest Capital Management LP | 154 | $14.0K | 0.00% | −566−78.6% | Reduced |
| Signaturefd, LLC | 131 | $12.0K | 0.00% | +55+72.4% | Added |
| Jackson, Grant Investment Advisers, Inc. | 109 | $10.0K | 0.00% | −90−45.2% | Reduced |
| Smith Group Asset Management, LLC | 110 | $10.0K | 0.00% | +110 | New |
| Rockefeller Capital Management L.P. | 106 | $9.00K | 0.00% | −23−17.8% | Reduced |
| Huntington National Bank | 87 | $8.00K | 0.00% | +53+155.9% | Added |
| Federation des caisses Desjardins du Quebec | 81 | $7.38K | 0.00% | 00.0% | Unchanged |
| Cahill Financial Advisors Inc | 72 | $7.00K | 0.00% | +72 | New |
| Massmutual Trust Co FSB | 70 | $6.00K | 0.00% | 00.0% | Unchanged |
| Kowal Investment Group, LLC | 70 | $6.00K | 0.00% | +70 | New |
| Bell Investment Advisors, Inc | 61 | $6.00K | 0.00% | +61 | New |
| American Portfolios Advisors | 60 | $5.47K | 0.00% | 00.0% | Unchanged |
| Meeder Asset Management Inc | 57 | $5.00K | 0.00% | −7,355−99.2% | Reduced |
| NEXT Financial Group, Inc | 57 | $5.00K | 0.00% | 00.0% | Unchanged |
| GPS Wealth Strategies Group, LLC | 50 | $5.00K | 0.00% | 00.0% | Unchanged |
| Earnest Partners LLC | 45 | $4.00K | 0.00% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 19 | $2.00K | 0.00% | −13−40.6% | Reduced |
| Plante Moran Financial Advisors, LLC | 25 | $2.00K | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 18 | $2.00K | 0.00% | 00.0% | Unchanged |
| Syverson Strege & Co | 27 | $2.00K | 0.00% | +27 | New |
| Lindbrook Capital, LLC | 20 | $2.00K | 0.00% | +20 | New |
| Heritage Wealth Management, LLC | 25 | $2.00K | 0.00% | +25 | New |
| Canada Pension Plan Investment Board | 10 | $1.00K | 0.00% | 00.0% | Unchanged |
| Sound Income Strategies, LLC | 15 | $1.00K | 0.00% | 00.0% | Unchanged |
| Bellwether Advisors, LLC | 13 | $1.00K | 0.00% | 00.0% | Unchanged |
| Farmers & Merchants Investments Inc | 9 | $1.00K | 0.00% | +9 | New |
| O'Shaughnessy Asset Management, LLC | 9 | $1.00K | 0.00% | +9 | New |
| TD Private Client Wealth LLC | 9 | $820 | 0.00% | 00.0% | Unchanged |
| Raffa Wealth Management, LLC | 9 | $820 | 0.00% | 00.0% | Unchanged |
| Brown Brothers Harriman & Co | 4 | $0 | 0.00% | −73−94.8% | Reduced |
| Glassman Wealth Services | 3 | $0 | 0.00% | 00.0% | Unchanged |
| Zions Bancorporation, N.A. | 5 | $0 | 0.00% | 00.0% | Unchanged |
| Your Advocates Ltd., LLP | 5 | $0 | 0.00% | 00.0% | Unchanged |
| Meridian Wealth Partners, LLC | 5 | $0 | 0.00% | +5 | New |
| Capital World Investors | 0 | $0 | 0.00% | −2,610,154−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −112,553−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −111,427−100.0% | Sold out |
| Paloma Partners Management Co | 0 | $0 | 0.00% | −71,948−100.0% | Sold out |
| Duality Advisers, LP | 0 | $0 | 0.00% | −42,519−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −35,370−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −25,075−100.0% | Sold out |
| State of Alaska, Department of Revenue | 0 | $0 | 0.00% | −19,040−100.0% | Sold out |
| Pendal Group Limited | 0 | $0 | 0.00% | −18,374−100.0% | Sold out |
| Quantitative Systematic Strategies LLC | 0 | $0 | 0.00% | −18,308−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −18,194−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −17,788−100.0% | Sold out |
| Knowledge Leaders Capital, LLC | 0 | $0 | 0.00% | −10,702−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −10,004−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −9,974−100.0% | Sold out |
| Kingsview Wealth Management, LLC | 0 | $0 | 0.00% | −8,252−100.0% | Sold out |
| CIBC World Markets Inc. | 0 | $0 | 0.00% | −8,092−100.0% | Sold out |
| USS Investment Management Ltd | 0 | $0 | 0.00% | −6,633−100.0% | Sold out |
| Wolverine Asset Management LLC | 0 | $0 | 0.00% | −6,025−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −5,471−100.0% | Sold out |
| Sciencast Management LP | 0 | $0 | 0.00% | −5,387−100.0% | Sold out |
| Krane Funds Advisors LLC | 0 | $0 | 0.00% | −5,347−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −4,148−100.0% | Sold out |
| Pearl River Capital, LLC | 0 | $0 | 0.00% | −3,995−100.0% | Sold out |
| Petrus Trust Company, LTA | 0 | $0 | 0.00% | −3,137−100.0% | Sold out |
| Teza Capital Management LLC | 0 | $0 | 0.00% | −2,961−100.0% | Sold out |
| Banco Santander, S.A. | 0 | $0 | 0.00% | −2,865−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −2,800−100.0% | Sold out |