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 |
|---|---|---|---|---|---|
| Alliancebernstein L.P. | 64,306 | $5.86M | 0.00% | −83,338−56.4% | Reduced |
| Contravisory Investment Management, Inc. | 65,683 | $5.99M | 1.82% | −1,535−2.3% | Reduced |
| Pacer Advisors, Inc. | 66,198 | $6.03M | 0.08% | +66,198 | New |
| Citigroup Inc | 67,513 | $6.15M | 0.01% | +29,556+77.9% | Added |
| D. E. Shaw & Co., Inc. | 68,131 | $6.21M | 0.01% | −35,882−34.5% | Reduced |
| Squarepoint Ops LLC | 68,965 | $6.29M | 0.04% | −40,929−37.2% | Reduced |
| Russell Investments Group, Ltd. | 69,993 | $6.39M | 0.01% | +38,734+123.9% | Added |
| Barclays PLC | 73,351 | $6.69M | 0.00% | −48,067−39.6% | Reduced |
| Winmill & Co. Inc | 74,000 | $6.75M | 2.16% | +34,900+89.3% | Added |
| GMT Capital Corp | 76,100 | $6.94M | 0.61% | +76,100 | New |
| Invesco Ltd. | 76,155 | $6.94M | 0.00% | +13,144+20.9% | Added |
| Price Michael F | 77,000 | $7.02M | 0.81% | 00.0% | Unchanged |
| Jade Capital Advisors, LLC | 80,000 | $7.29M | 4.48% | 00.0% | Unchanged |
| Swiss National Bank | 85,000 | $7.75M | 0.00% | +500+0.6% | Added |
| Panagora Asset Management Inc | 87,029 | $7.93M | 0.04% | +32,489+59.6% | Added |
| Natixis | 98,988 | $9.02M | 0.03% | +98,988 | New |
| Schroder Investment Management Group | 99,053 | $9.03M | 0.01% | −1,103−1.1% | Reduced |
| Arrowstreet Capital, Limited Partnership | 99,800 | $9.10M | 0.01% | +46,242+86.3% | Added |
| Wedge Capital Management L L P | 101,818 | $9.28M | 0.12% | +10,657+11.7% | Added |
| ExodusPoint Capital Management, LP | 110,412 | $10.1M | 0.15% | −2,747−2.4% | Reduced |
| Renaissance Technologies LLC | 111,000 | $10.1M | 0.01% | −29,100−20.8% | Reduced |
| Moore Capital Management, LP | 111,820 | $10.2M | 0.21% | +111,820 | New |
| Sprott Inc. | 115,000 | $10.5M | 0.77% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 122,264 | $11.1M | 0.00% | −6,062−4.7% | Reduced |
| Bank of America Corp | 123,700 | $11.3M | 0.00% | −14,647−10.6% | Reduced |
| SIR Capital Management, L.P. | 126,525 | $11.5M | 1.69% | −24,575−16.3% | Reduced |
| Ameriprise Financial Inc | 127,578 | $11.6M | 0.00% | +24,706+24.0% | Added |
| Erste Asset Management GmbH | 134,000 | $12.2M | 0.24% | −10,000−6.9% | Reduced |
| Brandes Investment Partners, LP | 135,147 | $12.3M | 0.27% | +38,410+39.7% | Added |
| Guggenheim Capital LLC | 136,403 | $12.4M | 0.08% | −10,725−7.3% | Reduced |
| Legal & General Group Plc | 137,433 | $12.5M | 0.00% | +19,983+17.0% | Added |
| Parametric Portfolio Associates LLC | 150,302 | $13.7M | 0.01% | +3,161+2.1% | Added |
| Northern Trust Corp | 164,053 | $15.0M | 0.00% | −14,074−7.9% | Reduced |
| UBS Oconnor LLC | 165,531 | $15.1M | 0.13% | +90,531+120.7% | Added |
| Nuveen Asset Management, LLC | 178,056 | $16.2M | 0.01% | +11,757+7.1% | Added |
| Scout Investments, Inc. | 182,581 | $16.6M | 0.25% | −40,277−18.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 200,541 | $18.3M | 0.21% | +189,341+1,690.5% | Added |
| Sandbar Asset Management LLP | 201,746 | $18.4M | 2.00% | +85,676+73.8% | Added |
| Scopus Asset Management, L.P. | 230,000 | $21.0M | 0.53% | +95,000+70.4% | Added |
| Robotti Robert | 230,970 | $21.1M | 4.83% | +590+0.3% | Added |
| Point72 Asset Management, L.P. | 238,064 | $21.7M | 0.10% | +44,161+22.8% | Added |
| First Trust Advisors LP | 251,460 | $22.9M | 0.02% | −13,421−5.1% | Reduced |
| Virginia Retirement Systems Et Al | 251,500 | $22.9M | 0.23% | +79,000+45.8% | Added |
| Charles Schwab Investment Management Inc | 289,189 | $26.4M | 0.01% | +3,636+1.3% | Added |
| Marshall Wace North America L.P. | 307,152 | $28.0M | 0.12% | −43,379−12.4% | Reduced |
| Bank of New York Mellon Corp | 307,646 | $28.0M | 0.01% | −5,026−1.6% | Reduced |
| Norges Bank | 334,577 | $30.5M | 0.01% | −11,161−3.2% | Reduced |
| Jacobs Levy Equity Management, Inc | 387,108 | $35.3M | 0.24% | +300,070+344.8% | Added |
| Federated Hermes, Inc. | 394,267 | $35.9M | 0.07% | +389,057+7,467.5% | Added |
| Geode Capital Management, LLC | 398,870 | $36.4M | 0.00% | −8,710−2.1% | Reduced |
| Polaris Wealth Advisory Group, LLC | 422,174 | $41.8M | 2.50% | +422,174 | New |
| JPMorgan Chase & Co | 481,685 | $43.9M | 0.01% | +411,237+583.7% | Added |
| AQR Capital Management LLC | 490,600 | $44.7M | 0.08% | +278,290+131.1% | Added |
| Wells Fargo & Company | 517,071 | $47.1M | 0.01% | +50,806+10.9% | Added |
| State Street Corp | 517,452 | $47.2M | 0.00% | −1,082−0.2% | Reduced |
| Morgan Stanley | 527,689 | $48.1M | 0.01% | −35,521−6.3% | Reduced |
| Balyasny Asset Management LLC | 561,231 | $51.2M | 0.25% | +532,193+1,832.7% | Added |
| Prudential Financial Inc | 566,702 | $51.6M | 0.07% | +105,648+22.9% | Added |
| Janus Henderson Group PLC | 570,587 | $52.0M | 0.02% | +286,004+100.5% | Added |
| Citadel Advisors LLC | 608,093 | $55.4M | 0.06% | +133,585+28.2% | Added |
| Fort Pitt Capital Group, LLC | 621,047 | $56.6M | 2.36% | +13,901+2.3% | Added |
| Mirae Asset Global Investments Co., Ltd. | 641,674 | $58.5M | 0.15% | +100,834+18.6% | Added |
| Acadian Asset Management LLC | 655,963 | $59.8M | 0.23% | +91,534+16.2% | Added |
| FMR LLC | 744,763 | $67.9M | 0.01% | −1,307,639−63.7% | Reduced |
| Assenagon Asset Management S.A. | 751,636 | $68.5M | 0.28% | +710,044+1,707.2% | Added |
| Goldman Sachs Group Inc | 999,423 | $91.1M | 0.02% | −131,755−11.6% | Reduced |
| Price T Rowe Associates Inc | 1,238,381 | $112.9M | 0.01% | −804,893−39.4% | Reduced |
| Millennium Management LLC | 1,291,436 | $117.7M | 0.16% | +612,509+90.2% | Added |
| BlackRock Inc. | 1,657,453 | $151.1M | 0.00% | −28,494−1.7% | Reduced |
| Dimensional Fund Advisors LP | 2,309,902 | $210.5M | 0.07% | +31,476+1.4% | Added |
| Vanguard Group Inc | 3,923,779 | $357.6M | 0.01% | −74,191−1.9% | Reduced |
| Victory Capital Management Inc | 4,208,672 | $383.6M | 0.38% | +1,143,618+37.3% | Added |
| 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 |