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 2022
Institutional positions in Westlake Corp as of Dec 31, 2022. 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
- 344
- +32 vs. Q3 2022
- Shares held
- 36.4M
- +1.54M (+4.4%) vs. Q3 2022
- Total value
- $3.73B
- +$703.7M (+23.2%) vs. Q3 2022
- New holders
- 74
- 105 more added
- Sold out
- 42
- 118 more reduced
9 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2022: 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, Q4 2022
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Paradigm Capital Management Inc | 11,600 | $1.19M | 0.08% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 11,771 | $1.21M | 0.00% | −61,547−83.9% | Reduced |
| Larson Financial Group LLC | 11,803 | $1.21M | 0.14% | +8,194+227.0% | Added |
| DnB Asset Management AS | 11,811 | $1.21M | 0.01% | +560+5.0% | Added |
| Bokf, NA | 11,879 | $1.22M | 0.02% | +113+1.0% | Added |
| Lazard Asset Management LLC | 12,302 | $1.26M | 0.00% | −1,809−12.8% | Reduced |
| Voloridge Investment Management, LLC | 12,384 | $1.27M | 0.01% | +12,384 | New |
| New York State Teachers Retirement System | 12,701 | $1.30M | 0.00% | +9,801+338.0% | Added |
| Allianz Asset Management GmbH | 13,807 | $1.42M | 0.00% | −2,791−16.8% | Reduced |
| KBC Group NV | 13,921 | $1.43M | 0.01% | +1,503+12.1% | Added |
| CWM Advisors, LLC | 14,493 | $1.49M | 0.19% | +11,107+328.0% | Added |
| Gotham Asset Management, LLC | 14,507 | $1.49M | 0.04% | −440−2.9% | Reduced |
| Asset Management One Co.,Ltd. | 14,666 | $1.51M | 0.01% | −1,152−7.3% | Reduced |
| Ameritas Investment Partners, Inc. | 13,995 | $1.54M | 0.06% | +10,095+258.8% | Added |
| Mirabella Financial Services LLP | 15,138 | $1.55M | 0.14% | +15,138 | New |
| SEI Investments Co | 15,151 | $1.55M | 0.00% | −31,608−67.6% | Reduced |
| Cambria Investment Management, L.P. | 15,288 | $1.57M | 0.13% | +1,784+13.2% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 15,491 | $1.59M | 0.01% | +15,491 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 16,413 | $1.63M | 0.00% | +5,251+47.0% | Added |
| Thrivent Financial for Lutherans | 16,099 | $1.65M | 0.00% | −59,143−78.6% | Reduced |
| CI Private Wealth, LLC | 16,116 | $1.65M | 0.01% | +16,116 | New |
| Oregon Public Employees Retirement Fund | 16,471 | $1.69M | 0.02% | +8,605+109.4% | Added |
| Schonfeld Strategic Advisors LLC | 16,800 | $1.72M | 0.01% | −107,016−86.4% | Reduced |
| Navellier & Associates Inc | 16,817 | $1.72M | 0.35% | −7,769−31.6% | Reduced |
| Livforsakringsbolaget Skandia, Omsesidigt | 16,950 | $1.74M | 0.20% | 00.0% | Unchanged |
| Treasurer of the State of North Carolina | 17,349 | $1.78M | 0.01% | +3,209+22.7% | Added |
| Public Employees Retirement System of Ohio | 17,518 | $1.80M | 0.01% | −1,061−5.7% | Reduced |
| ProShare Advisors LLC | 17,691 | $1.81M | 0.01% | +17,691 | New |
| Yousif Capital Management, LLC | 18,467 | $1.89M | 0.02% | +18,467 | New |
| Agf Management Ltd | 18,666 | $1.91M | 0.01% | +18,666 | New |
| Twin Capital Management Inc | 19,108 | $1.96M | 0.25% | −1,485−7.2% | Reduced |
| State of Wisconsin Investment Board | 19,138 | $1.96M | 0.01% | −2,444−11.3% | Reduced |
| Alaska Permanent Fund Corp | 19,300 | $1.98M | 0.03% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 20,341 | $2.09M | 0.00% | +10,501+106.7% | Added |
| Comerica Bank | 18,671 | $2.10M | 0.02% | +15,211+439.6% | Added |
| PEAK6 Investments LLC | 21,091 | $2.16M | 0.12% | −7,860−27.1% | Reduced |
| UBS Group AG | 21,158 | $2.17M | 0.00% | +18,288+637.2% | Added |
| American Century Companies Inc | 21,384 | $2.19M | 0.00% | +5,346+33.3% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 21,412 | $2.20M | 0.01% | +879+4.3% | Added |
| MetLife Investment Management | 21,651 | $2.22M | 0.02% | +20,973+3,093.4% | Added |
| Covalis Capital LLP | 21,658 | $2.22M | 0.53% | −16,437−43.1% | Reduced |
| Advisors Asset Management, Inc. | 22,269 | $2.28M | 0.05% | −3,387−13.2% | Reduced |
| State of New Jersey Common Pension Fund D | 22,995 | $2.36M | 0.01% | 00.0% | Unchanged |
| Pinebridge Investments, L.P. | 23,058 | $2.36M | 0.03% | +1,410+6.5% | Added |
| Texas Permanent School Fund | 23,150 | $2.37M | 0.04% | +23,150 | New |
| Citigroup Inc | 23,721 | $2.43M | 0.00% | −35,316−59.8% | Reduced |
| Amalgamated Bank | 25,743 | $2.64M | 0.02% | +21,855+562.1% | Added |
| Deutsche Bank AG | 25,778 | $2.64M | 0.00% | −17,691−40.7% | Reduced |
| LPL Financial LLC | 26,313 | $2.70M | 0.00% | +134+0.5% | Added |
| Royal Bank of Canada | 26,675 | $2.73M | 0.00% | −968−3.5% | Reduced |
| Price T Rowe Associates Inc | 26,972 | $2.77M | 0.00% | −337−1.2% | Reduced |
| Mutual of America Capital Management LLC | 28,267 | $2.90M | 0.04% | +28,267 | New |
| State of Alaska, Department of Revenue | 28,734 | $2.95M | 0.04% | +5,980+26.3% | Added |
| Mercer Global Advisors Inc | 28,926 | $2.97M | 0.01% | +3,809+15.2% | Added |
| Swedbank AB | 28,953 | $2.97M | 0.01% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 29,139 | $2.99M | 0.00% | +26,613+1,053.6% | Added |
| Great West Life Assurance Co | 29,392 | $3.02M | 0.01% | +19,744+204.6% | Added |
| Hussman Strategic Advisors, Inc. | 31,000 | $3.18M | 0.52% | 00.0% | Unchanged |
| Prudential Financial Inc | 31,856 | $3.27M | 0.01% | −68,877−68.4% | Reduced |
| BNP Paribas Arbitrage, SA | 32,439 | $3.33M | 0.01% | −86,920−72.8% | Reduced |
| Quantinno Capital Management LP | 33,716 | $3.46M | 0.26% | +14,594+76.3% | Added |
| Clark Estates Inc | 34,600 | $3.55M | 0.74% | 00.0% | Unchanged |
| O'Shaughnessy Asset Management, LLC | 34,999 | $3.59M | 0.06% | +34,999 | New |
| Aviva PLC | 35,015 | $3.59M | 0.02% | +30,414+661.0% | Added |
| Alyeska Investment Group, L.P. | 35,400 | $3.63M | 0.04% | +35,400 | New |
| New York State Common Retirement Fund | 36,303 | $3.72M | 0.01% | −812−2.2% | Reduced |
| Barclays PLC | 36,391 | $3.73M | 0.00% | −208,375−85.1% | Reduced |
| State Board of Administration of Florida Retirement System | 36,733 | $3.77M | 0.01% | +940+2.6% | Added |
| Smith, Graham & Co., Investment Advisors, LP | 36,919 | $3.79M | 0.46% | −765−2.0% | Reduced |
| State of Tennessee, Treasury Department | 37,266 | $3.82M | 0.02% | 00.0% | Unchanged |
| Panagora Asset Management Inc | 38,476 | $3.95M | 0.03% | −98,761−72.0% | Reduced |
| Ambassador Advisors, LLC | 39,150 | $4.01M | 0.87% | −2,593−6.2% | Reduced |
| Empowered Funds, LLC | 41,075 | $4.21M | 0.28% | −2,113−4.9% | Reduced |
| Squarepoint Ops LLC | 41,095 | $4.21M | 0.03% | −35,851−46.6% | Reduced |
| Retirement Systems of Alabama | 45,386 | $4.65M | 0.02% | +45,386 | New |
| Brookfield Asset Management Inc. | 45,676 | $4.68M | 0.02% | +45,676 | New |
| Acadian Asset Management LLC | 45,881 | $4.70M | 0.02% | −375,635−89.1% | Reduced |
| Wellington Management Group LLP | 46,347 | $4.75M | 0.00% | −1,646−3.4% | Reduced |
| STRS Ohio | 50,904 | $5.22M | 0.02% | +958+1.9% | Added |
| Envestnet Asset Management Inc | 52,312 | $5.36M | 0.00% | +4,225+8.8% | Added |
| American International Group, Inc. | 53,616 | $5.50M | 0.04% | +53,270+15,396.0% | Added |
| Amundi | 53,297 | $5.96M | 0.00% | −100,478−65.3% | Reduced |
| California State Teachers Retirement System | 58,948 | $6.04M | 0.01% | −4,018−6.4% | Reduced |
| Ensign Peak Advisors, Inc | 60,683 | $6.22M | 0.01% | +9,808+19.3% | Added |
| D. E. Shaw & Co., Inc. | 61,016 | $6.26M | 0.01% | +8,434+16.0% | Added |
| Contravisory Investment Management, Inc. | 65,760 | $6.74M | 1.87% | +776+1.2% | Added |
| Wedge Capital Management L L P | 66,045 | $6.77M | 0.11% | −2,273−3.3% | Reduced |
| Winmill & Co. Inc | 70,000 | $7.18M | 2.61% | 00.0% | Unchanged |
| Yaupon Capital Management LP | 76,639 | $7.86M | 1.41% | +52,000+211.0% | Added |
| Credit Suisse AG | 79,312 | $8.13M | 0.01% | −56,373−41.5% | Reduced |
| Alliancebernstein L.P. | 81,002 | $8.31M | 0.00% | +33,857+71.8% | Added |
| Vident Investment Advisory, LLC | 81,562 | $8.36M | 0.32% | +14,154+21.0% | Added |
| Luminus Management LLC | 90,550 | $9.28M | 2.31% | +90,550 | New |
| Susquehanna Fundamental Investments, LLC | 94,486 | $9.69M | 0.17% | −21,641−18.6% | Reduced |
| Rhumbline Advisers | 102,649 | $10.5M | 0.01% | +64,341+168.0% | Added |
| Sprott Inc. | 105,000 | $10.8M | 0.96% | 00.0% | Unchanged |
| Sumitomo Mitsui Trust Holdings, Inc. | 109,891 | $11.3M | 0.01% | −735−0.7% | Reduced |
| Fort Pitt Capital Group, LLC | 111,360 | $11.4M | 0.47% | −19,623−15.0% | Reduced |
| Balyasny Asset Management LLC | 117,460 | $12.0M | 0.04% | +29,927+34.2% | Added |
| Korea Investment CORP | 121,265 | $12.4M | 0.04% | +106,215+705.7% | Added |