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 |
|---|---|---|---|---|---|
| FMR LLC | 4,630,975 | $577.3M | 0.05% | +96,152+2.1% | Added |
| BlackRock Inc. | 3,519,629 | $438.8M | 0.01% | −283,621−7.5% | Reduced |
| Vanguard Group Inc | 3,382,864 | $421.7M | 0.01% | −66,657−1.9% | Reduced |
| Victory Capital Management Inc | 3,369,244 | $420.0M | 0.48% | −36,331−1.1% | Reduced |
| Orbis Allan Gray Ltd | 3,211,523 | $400.4M | 2.88% | +296,494+10.2% | Added |
| State Street Corp | 1,128,455 | $140.7M | 0.01% | −35,829−3.1% | Reduced |
| Dimensional Fund Advisors LP | 1,102,549 | $137.5M | 0.05% | −149,322−11.9% | Reduced |
| Pacer Advisors, Inc. | 1,075,976 | $134.1M | 0.51% | −85,165−7.3% | Reduced |
| Soroban Capital Partners LP | 898,837 | $112.1M | 1.66% | 00.0% | Unchanged |
| Citadel Advisors LLC | 770,654 | $96.1M | 0.10% | −62,695−7.5% | Reduced |
| Goldman Sachs Group Inc | 705,496 | $88.0M | 0.02% | −71,060−9.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 682,832 | $85.1M | 0.19% | +63,823+10.3% | Added |
| Capital World Investors | 636,111 | $79.3M | 0.02% | +636,111 | New |
| Nuveen Asset Management, LLC | 518,672 | $64.7M | 0.02% | −2,457−0.5% | Reduced |
| First Trust Advisors LP | 473,652 | $59.1M | 0.07% | −46,559−9.0% | Reduced |
| Geode Capital Management, LLC | 474,139 | $59.0M | 0.01% | −11,870−2.4% | Reduced |
| Federated Hermes, Inc. | 408,295 | $50.9M | 0.14% | −68,849−14.4% | Reduced |
| Bank of New York Mellon Corp | 375,327 | $46.8M | 0.01% | −27,764−6.9% | Reduced |
| Norges Bank | 366,818 | $45.7M | 0.01% | +887+0.2% | Added |
| Charles Schwab Investment Management Inc | 344,632 | $43.0M | 0.01% | −8,423−2.4% | Reduced |
| Morgan Stanley | 330,023 | $41.1M | 0.00% | +16,237+5.2% | Added |
| Northern Trust Corp | 321,888 | $40.1M | 0.01% | +5,401+1.7% | Added |
| Samlyn Capital, LLC | 316,731 | $39.5M | 0.70% | +316,731 | New |
| AQR Capital Management LLC | 310,611 | $38.7M | 0.08% | +17,838+6.1% | Added |
| Invesco Ltd. | 304,429 | $38.0M | 0.01% | +109,433+56.1% | Added |
| Allspring Global Investments Holdings, LLC | 290,321 | $36.2M | 0.06% | −52,602−15.3% | Reduced |
| ProShare Advisors LLC | 276,220 | $34.4M | 0.11% | −13,965−4.8% | Reduced |
| Robotti Robert | 227,622 | $28.4M | 4.17% | −737−0.3% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 227,468 | $28.4M | 0.13% | +1,946+0.9% | Added |
| UBS Asset Management Americas Inc | 207,973 | $25.9M | 0.01% | +79,731+62.2% | Added |
| Janus Henderson Group PLC | 205,614 | $25.6M | 0.02% | +59,040+40.3% | Added |
| Legal & General Group Plc | 204,780 | $25.5M | 0.01% | −11,770−5.4% | Reduced |
| Millennium Management LLC | 200,264 | $25.0M | 0.03% | +174,483+676.8% | Added |
| Erste Asset Management GmbH | 155,206 | $19.3M | 0.33% | −8,164−5.0% | Reduced |
| Caisse de Depot Et Placement du Quebec | 147,163 | $18.3M | 0.05% | +42,633+40.8% | Added |
| Storebrand Asset Management AS | 145,232 | $18.1M | 0.09% | −8,215−5.4% | Reduced |
| American Century Companies Inc | 126,683 | $15.8M | 0.01% | −7,487−5.6% | Reduced |
| Ameriprise Financial Inc | 124,858 | $15.6M | 0.01% | −5,745−4.4% | Reduced |
| Swiss National Bank | 123,200 | $15.4M | 0.01% | −14,600−10.6% | Reduced |
| Scout Investments, Inc. | 124,017 | $15.2M | 0.35% | −6,130−4.7% | Reduced |
| ExodusPoint Capital Management, LP | 120,533 | $15.0M | 0.19% | +22,183+22.6% | Added |
| Luminus Management LLC | 120,500 | $15.0M | 4.63% | −1,149−0.9% | Reduced |
| Worldquant Millennium Advisors LLC | 119,664 | $14.9M | 0.23% | +91,952+331.8% | Added |
| Aviva PLC | 119,377 | $14.9M | 0.06% | +47,799+66.8% | Added |
| Principal Financial Group Inc | 117,793 | $14.7M | 0.01% | −11,458−8.9% | Reduced |
| Two Sigma Investments, LP | 99,624 | $12.4M | 0.03% | +86,124+638.0% | Added |
| Rhumbline Advisers | 97,509 | $12.2M | 0.01% | −5,329−5.2% | Reduced |
| KBC Group NV | 95,343 | $11.9M | 0.05% | +80,173+528.5% | Added |
| Sprott Inc. | 95,000 | $11.8M | 1.07% | −5,000−5.0% | Reduced |
| Virginia Retirement Systems Et Al | 94,961 | $11.8M | 0.12% | −7,600−7.4% | Reduced |
| JPMorgan Chase & Co | 91,650 | $11.4M | 0.00% | −4,938−5.1% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 88,865 | $11.1M | 0.01% | −2,339−2.6% | Reduced |
| Guggenheim Capital LLC | 87,886 | $11.0M | 0.09% | −59,110−40.2% | Reduced |
| Vident Advisory, LLC | 85,426 | $10.7M | 0.33% | +85,426 | New |
| Wells Fargo & Company | 84,528 | $10.5M | 0.00% | −12,961−13.3% | Reduced |
| Bank of America Corp | 82,862 | $10.3M | 0.00% | −17,555−17.5% | Reduced |
| Moran Wealth Management, LLC | 80,542 | $10.0M | 0.39% | +2,488+3.2% | Added |
| Alyeska Investment Group, L.P. | 76,318 | $9.51M | 0.07% | +251+0.3% | Added |
| Tudor Investment Corp Et Al | 75,172 | $9.37M | 0.14% | −20,816−21.7% | Reduced |
| Alliancebernstein L.P. | 74,166 | $9.25M | 0.00% | −4,345−5.5% | Reduced |
| Polar Asset Management Partners Inc. | 73,800 | $9.20M | 0.22% | +17,300+30.6% | Added |
| Winmill & Co. Inc | 70,000 | $8.73M | 3.20% | 00.0% | Unchanged |
| California Public Employees Retirement System | 65,036 | $8.11M | 0.01% | +32,492+99.8% | Added |
| Contravisory Investment Management, Inc. | 64,165 | $8.00M | 2.26% | −2,245−3.4% | Reduced |
| Renaissance Technologies LLC | 62,300 | $7.77M | 0.01% | +46,700+299.4% | Added |
| Wedge Capital Management L L P | 54,124 | $6.75M | 0.13% | −18,498−25.5% | Reduced |
| California State Teachers Retirement System | 53,496 | $6.67M | 0.01% | −3,452−6.1% | Reduced |
| Wellington Management Group LLP | 50,194 | $6.26M | 0.00% | +13,583+37.1% | Added |
| Citigroup Inc | 49,539 | $6.18M | 0.01% | +3,636+7.9% | Added |
| Amundi | 50,026 | $6.06M | 0.00% | +7,567+17.8% | Added |
| Ensign Peak Advisors, Inc | 45,674 | $5.69M | 0.01% | +12,634+38.2% | Added |
| American International Group, Inc. | 44,978 | $5.61M | 0.04% | −6,984−13.4% | Reduced |
| Barclays PLC | 43,693 | $5.45M | 0.00% | −6,632−13.2% | Reduced |
| Price T Rowe Associates Inc | 42,188 | $5.26M | 0.00% | +5,572+15.2% | Added |
| Credit Suisse AG | 41,513 | $5.18M | 0.01% | −21,360−34.0% | Reduced |
| Retirement Systems of Alabama | 39,858 | $4.97M | 0.02% | −4,555−10.3% | Reduced |
| Raymond James & Associates | 37,573 | $4.68M | 0.00% | +5,899+18.6% | Added |
| Pinebridge Investments, L.P. | 37,442 | $4.67M | 0.05% | −391−1.0% | Reduced |
| Quantinno Capital Management LP | 37,262 | $4.65M | 0.21% | +3,806+11.4% | Added |
| STRS Ohio | 36,351 | $4.53M | 0.02% | −14,342−28.3% | Reduced |
| Smith, Graham & Co., Investment Advisors, LP | 35,361 | $4.41M | 0.55% | −314−0.9% | Reduced |
| Jane Street Group, LLC | 33,757 | $4.21M | 0.01% | +26,260+350.3% | Added |
| Squarepoint Ops LLC | 33,158 | $4.13M | 0.02% | −9,890−23.0% | Reduced |
| Fort Pitt Capital Group, LLC | 32,333 | $4.03M | 0.15% | −4,059−11.2% | Reduced |
| D. E. Shaw & Co., Inc. | 32,255 | $4.02M | 0.01% | +32,255 | New |
| State of Wisconsin Investment Board | 32,174 | $4.01M | 0.01% | −2,577−7.4% | Reduced |
| UBS Group AG | 31,205 | $3.89M | 0.00% | −33,520−51.8% | Reduced |
| BNP Paribas Arbitrage, SA | 29,988 | $3.74M | 0.01% | −682−2.2% | Reduced |
| Deutsche Bank AG | 29,838 | $3.72M | 0.00% | +251+0.8% | Added |
| Livforsakringsbolaget Skandia, Omsesidigt | 30,000 | $3.66M | 0.40% | +14,650+95.4% | Added |
| State Board of Administration of Florida Retirement System | 28,574 | $3.56M | 0.01% | −3,980−12.2% | Reduced |
| State of Alaska, Department of Revenue | 27,728 | $3.46M | 0.04% | −480−1.7% | Reduced |
| Texas Permanent School Fund | 27,149 | $3.38M | 0.03% | −3,195−10.5% | Reduced |
| Manufacturers Life Insurance Company, The | 25,476 | $3.18M | 0.00% | −1,560−5.8% | Reduced |
| New York State Common Retirement Fund | 24,392 | $3.04M | 0.00% | −6,879−22.0% | Reduced |
| QRG Capital Management, Inc. | 24,216 | $3.02M | 0.05% | +24,216 | New |
| South Dakota Investment Council | 24,155 | $3.01M | 0.07% | +24,155 | New |
| Mercer Global Advisors Inc | 23,986 | $2.99M | 0.01% | −2,332−8.9% | Reduced |
| State of New Jersey Common Pension Fund D | 22,995 | $2.87M | 0.01% | 00.0% | Unchanged |
| Great West Life Assurance Co | 22,353 | $2.79M | 0.01% | −2,407−9.7% | Reduced |