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 2023
Institutional positions in Westlake Corp as of Sep 30, 2023. 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
- 335
- −2 vs. Q2 2023
- Shares held
- 37.2M
- +308.4K (+0.8%) vs. Q2 2023
- Total value
- $4.64B
- +$231.6M (+5.2%) vs. Q2 2023
- New holders
- 36
- 92 more added
- Sold out
- 38
- 144 more reduced
3 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: 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 2023
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| New York State Teachers Retirement System | 14,643 | $1.83M | 0.00% | −722−4.7% | Reduced |
| Jump Financial, LLC | 14,799 | $1.84M | 0.07% | −8,923−37.6% | Reduced |
| Public Employees Retirement System of Ohio | 15,184 | $1.89M | 0.01% | −1,387−8.4% | Reduced |
| Swiss Life Asset Management Ltd | 15,626 | $1.95M | 0.03% | +15,626 | New |
| Yousif Capital Management, LLC | 15,637 | $1.95M | 0.02% | −2,130−12.0% | Reduced |
| Neuberger Berman Group LLC | 15,758 | $1.96M | 0.00% | +352+2.3% | Added |
| Two Sigma Advisers, LP | 15,900 | $1.98M | 0.01% | +15,900 | New |
| SEI Investments Co | 15,906 | $1.98M | 0.00% | −370−2.3% | Reduced |
| Ambassador Advisors, LLC | 16,351 | $2.00M | 0.49% | −14,347−46.7% | Reduced |
| Royal Bank of Canada | 16,137 | $2.01M | 0.00% | −14,477−47.3% | Reduced |
| Asset Management One Co.,Ltd. | 16,217 | $2.02M | 0.01% | +2,918+21.9% | Added |
| CI Private Wealth, LLC | 16,530 | $2.06M | 0.00% | +26+0.2% | Added |
| Empowered Funds, LLC | 16,611 | $2.07M | 0.06% | +135+0.8% | Added |
| Connectus Wealth, LLC | 16,586 | $2.07M | 0.05% | +1,737+11.7% | Added |
| Treasurer of the State of North Carolina | 17,569 | $2.19M | 0.01% | +83+0.5% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 17,750 | $2.21M | 0.01% | +1,413+8.6% | Added |
| MetLife Investment Management | 18,302 | $2.28M | 0.02% | −2,310−11.2% | Reduced |
| DnB Asset Management AS | 18,427 | $2.30M | 0.01% | +7,033+61.7% | Added |
| HSBC Holdings PLC | 19,220 | $2.40M | 0.00% | −12,401−39.2% | Reduced |
| LMCG Investments, LLC | 19,657 | $2.45M | 0.17% | +50.0% | Added |
| Comerica Bank | 20,043 | $2.50M | 0.01% | +5,883+41.5% | Added |
| LPL Financial LLC | 20,182 | $2.52M | 0.00% | −7,267−26.5% | Reduced |
| Prudential Financial Inc | 20,201 | $2.52M | 0.00% | −6,740−25.0% | Reduced |
| HRT Financial LP | 20,423 | $2.55M | 0.03% | +20,423 | New |
| Mutual of America Capital Management LLC | 20,768 | $2.59M | 0.03% | −4,301−17.2% | Reduced |
| Gotham Asset Management, LLC | 20,838 | $2.60M | 0.05% | −34,273−62.2% | Reduced |
| Amalgamated Bank | 20,856 | $2.60M | 0.02% | +32+0.2% | Added |
| Alaska Permanent Fund Corp | 20,900 | $2.61M | 0.05% | 00.0% | Unchanged |
| Hussman Strategic Advisors, Inc. | 21,000 | $2.62M | 0.50% | +5,500+35.5% | Added |
| Agf Management Ltd | 21,120 | $2.63M | 0.02% | +2,850+15.6% | Added |
| CWM Advisors, LLC | 21,228 | $2.65M | 0.34% | −2,578−10.8% | Reduced |
| Envestnet Asset Management Inc | 21,518 | $2.68M | 0.00% | −23,712−52.4% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 21,904 | $2.73M | 0.01% | −295−1.3% | Reduced |
| Susquehanna International Group, LLP | 22,042 | $2.75M | 0.00% | +17,730+411.2% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 22,297 | $2.78M | 0.01% | +5,320+31.3% | Added |
| Great West Life Assurance Co | 22,353 | $2.79M | 0.01% | −2,407−9.7% | Reduced |
| State of New Jersey Common Pension Fund D | 22,995 | $2.87M | 0.01% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 23,986 | $2.99M | 0.01% | −2,332−8.9% | Reduced |
| South Dakota Investment Council | 24,155 | $3.01M | 0.07% | +24,155 | New |
| QRG Capital Management, Inc. | 24,216 | $3.02M | 0.05% | +24,216 | New |
| New York State Common Retirement Fund | 24,392 | $3.04M | 0.00% | −6,879−22.0% | Reduced |
| Manufacturers Life Insurance Company, The | 25,476 | $3.18M | 0.00% | −1,560−5.8% | Reduced |
| Texas Permanent School Fund | 27,149 | $3.38M | 0.03% | −3,195−10.5% | Reduced |
| State of Alaska, Department of Revenue | 27,728 | $3.46M | 0.04% | −480−1.7% | Reduced |
| State Board of Administration of Florida Retirement System | 28,574 | $3.56M | 0.01% | −3,980−12.2% | Reduced |
| Livforsakringsbolaget Skandia, Omsesidigt | 30,000 | $3.66M | 0.40% | +14,650+95.4% | Added |
| Deutsche Bank AG | 29,838 | $3.72M | 0.00% | +251+0.8% | Added |
| BNP Paribas Arbitrage, SA | 29,988 | $3.74M | 0.01% | −682−2.2% | Reduced |
| UBS Group AG | 31,205 | $3.89M | 0.00% | −33,520−51.8% | Reduced |
| State of Wisconsin Investment Board | 32,174 | $4.01M | 0.01% | −2,577−7.4% | Reduced |
| D. E. Shaw & Co., Inc. | 32,255 | $4.02M | 0.01% | +32,255 | New |
| Fort Pitt Capital Group, LLC | 32,333 | $4.03M | 0.15% | −4,059−11.2% | Reduced |
| Squarepoint Ops LLC | 33,158 | $4.13M | 0.02% | −9,890−23.0% | Reduced |
| Jane Street Group, LLC | 33,757 | $4.21M | 0.01% | +26,260+350.3% | Added |
| Smith, Graham & Co., Investment Advisors, LP | 35,361 | $4.41M | 0.55% | −314−0.9% | Reduced |
| STRS Ohio | 36,351 | $4.53M | 0.02% | −14,342−28.3% | Reduced |
| Quantinno Capital Management LP | 37,262 | $4.65M | 0.21% | +3,806+11.4% | Added |
| Pinebridge Investments, L.P. | 37,442 | $4.67M | 0.05% | −391−1.0% | Reduced |
| Raymond James & Associates | 37,573 | $4.68M | 0.00% | +5,899+18.6% | Added |
| Retirement Systems of Alabama | 39,858 | $4.97M | 0.02% | −4,555−10.3% | Reduced |
| Credit Suisse AG | 41,513 | $5.18M | 0.01% | −21,360−34.0% | Reduced |
| Price T Rowe Associates Inc | 42,188 | $5.26M | 0.00% | +5,572+15.2% | Added |
| Barclays PLC | 43,693 | $5.45M | 0.00% | −6,632−13.2% | Reduced |
| American International Group, Inc. | 44,978 | $5.61M | 0.04% | −6,984−13.4% | Reduced |
| Ensign Peak Advisors, Inc | 45,674 | $5.69M | 0.01% | +12,634+38.2% | Added |
| Amundi | 50,026 | $6.06M | 0.00% | +7,567+17.8% | Added |
| Citigroup Inc | 49,539 | $6.18M | 0.01% | +3,636+7.9% | Added |
| Wellington Management Group LLP | 50,194 | $6.26M | 0.00% | +13,583+37.1% | Added |
| California State Teachers Retirement System | 53,496 | $6.67M | 0.01% | −3,452−6.1% | Reduced |
| Wedge Capital Management L L P | 54,124 | $6.75M | 0.13% | −18,498−25.5% | Reduced |
| Renaissance Technologies LLC | 62,300 | $7.77M | 0.01% | +46,700+299.4% | Added |
| Contravisory Investment Management, Inc. | 64,165 | $8.00M | 2.26% | −2,245−3.4% | Reduced |
| California Public Employees Retirement System | 65,036 | $8.11M | 0.01% | +32,492+99.8% | Added |
| Winmill & Co. Inc | 70,000 | $8.73M | 3.20% | 00.0% | Unchanged |
| Polar Asset Management Partners Inc. | 73,800 | $9.20M | 0.22% | +17,300+30.6% | Added |
| Alliancebernstein L.P. | 74,166 | $9.25M | 0.00% | −4,345−5.5% | Reduced |
| Tudor Investment Corp Et Al | 75,172 | $9.37M | 0.14% | −20,816−21.7% | Reduced |
| Alyeska Investment Group, L.P. | 76,318 | $9.51M | 0.07% | +251+0.3% | Added |
| Moran Wealth Management, LLC | 80,542 | $10.0M | 0.39% | +2,488+3.2% | Added |
| Bank of America Corp | 82,862 | $10.3M | 0.00% | −17,555−17.5% | Reduced |
| Wells Fargo & Company | 84,528 | $10.5M | 0.00% | −12,961−13.3% | Reduced |
| Vident Advisory, LLC | 85,426 | $10.7M | 0.33% | +85,426 | New |
| Guggenheim Capital LLC | 87,886 | $11.0M | 0.09% | −59,110−40.2% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 88,865 | $11.1M | 0.01% | −2,339−2.6% | Reduced |
| JPMorgan Chase & Co | 91,650 | $11.4M | 0.00% | −4,938−5.1% | Reduced |
| Virginia Retirement Systems Et Al | 94,961 | $11.8M | 0.12% | −7,600−7.4% | Reduced |
| Sprott Inc. | 95,000 | $11.8M | 1.07% | −5,000−5.0% | Reduced |
| KBC Group NV | 95,343 | $11.9M | 0.05% | +80,173+528.5% | Added |
| Rhumbline Advisers | 97,509 | $12.2M | 0.01% | −5,329−5.2% | Reduced |
| Two Sigma Investments, LP | 99,624 | $12.4M | 0.03% | +86,124+638.0% | Added |
| Principal Financial Group Inc | 117,793 | $14.7M | 0.01% | −11,458−8.9% | Reduced |
| Aviva PLC | 119,377 | $14.9M | 0.06% | +47,799+66.8% | Added |
| Worldquant Millennium Advisors LLC | 119,664 | $14.9M | 0.23% | +91,952+331.8% | Added |
| Luminus Management LLC | 120,500 | $15.0M | 4.63% | −1,149−0.9% | Reduced |
| ExodusPoint Capital Management, LP | 120,533 | $15.0M | 0.19% | +22,183+22.6% | Added |
| Scout Investments, Inc. | 124,017 | $15.2M | 0.35% | −6,130−4.7% | Reduced |
| Swiss National Bank | 123,200 | $15.4M | 0.01% | −14,600−10.6% | Reduced |
| Ameriprise Financial Inc | 124,858 | $15.6M | 0.01% | −5,745−4.4% | Reduced |
| American Century Companies Inc | 126,683 | $15.8M | 0.01% | −7,487−5.6% | Reduced |
| Storebrand Asset Management AS | 145,232 | $18.1M | 0.09% | −8,215−5.4% | Reduced |