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 2024
Institutional positions in Westlake Corp as of Dec 31, 2024. 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
- 378
- −20 vs. Q3 2024
- Shares held
- 35.3M
- +1.62M (+4.8%) vs. Q3 2024
- Total value
- $4.04B
- −$1.01B (−20.0%) vs. Q3 2024
- New holders
- 48
- 144 more added
- Sold out
- 68
- 128 more reduced
5 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: 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 2024
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Pathstone Holdings, LLC | 6,987 | $801.0K | 0.00% | +159+2.3% | Added |
| New Mexico Educational Retirement Board | 7,000 | $803.0K | 0.03% | 00.0% | Unchanged |
| Custom Index Systems, LLC | 7,059 | $809.3K | 0.43% | −46−0.6% | Reduced |
| Illinois Municipal Retirement Fund | 7,075 | $811.1K | 0.01% | −6,900−49.4% | Reduced |
| Advisors Asset Management, Inc. | 7,206 | $826.2K | 0.02% | −344−4.6% | Reduced |
| State of Tennessee, Treasury Department | 7,295 | $836.4K | 0.00% | −205−2.7% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 7,391 | $847.4K | 0.01% | +21+0.3% | Added |
| British Columbia Investment Management Corp | 7,392 | $847.5K | 0.01% | +950+14.7% | Added |
| Northwestern Mutual Investment Management Company, LLC | 7,437 | $852.7K | 0.02% | +19+0.3% | Added |
| Jane Street Group, LLC | 7,684 | $881.0K | 0.00% | −31,953−80.6% | Reduced |
| SEI Investments Co | 7,827 | $897.4K | 0.00% | +3,851+96.9% | Added |
| Thrivent Financial for Lutherans | 7,874 | $903.0K | 0.00% | +19+0.2% | Added |
| New York State Teachers Retirement System | 8,102 | $929.0K | 0.00% | −100−1.2% | Reduced |
| AustralianSuper Pty Ltd | 8,380 | $960.8K | 0.00% | −2,346−21.9% | Reduced |
| Entropy Technologies, LP | 8,443 | $968.0K | 0.10% | −4,301−33.7% | Reduced |
| Handelsbanken Fonder AB | 8,600 | $986.0K | 0.00% | −1,700−16.5% | Reduced |
| Polymer Capital Management (US) LLC | 8,801 | $1.01M | 0.32% | +8,801 | New |
| State of Michigan Retirement System | 8,900 | $1.02M | 0.01% | +200+2.3% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 9,101 | $1.03M | 0.00% | 00.0% | Unchanged |
| Old Mission Capital LLC | 9,165 | $1.05M | 0.02% | +9,165 | New |
| Louisiana State Employees Retirement System | 9,300 | $1.07M | 0.02% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 9,494 | $1.09M | 0.01% | +500+5.6% | Added |
| QRG Capital Management, Inc. | 10,268 | $1.18M | 0.01% | −2,371−18.8% | Reduced |
| Nomura Asset Management Co Ltd | 10,456 | $1.20M | 0.00% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 10,561 | $1.21M | 0.00% | −3,026−22.3% | Reduced |
| Arizona State Retirement System | 11,204 | $1.28M | 0.01% | +153+1.4% | Added |
| Public Employees Retirement System of Ohio | 11,517 | $1.32M | 0.00% | −660−5.4% | Reduced |
| Mercer Global Advisors Inc | 11,660 | $1.34M | 0.00% | −3,834−24.7% | Reduced |
| Asset Management One Co.,Ltd. | 11,719 | $1.34M | 0.00% | 00.0% | Unchanged |
| Teachers Retirement System of the State of Kentucky | 11,715 | $1.34M | 0.01% | −230−1.9% | Reduced |
| Resona Asset Management Co.,Ltd. | 11,719 | $1.34M | 0.01% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 11,803 | $1.35M | 0.04% | −134−1.1% | Reduced |
| KLP Kapitalforvaltning AS | 11,900 | $1.36M | 0.01% | +11,900 | New |
| Axq Capital, LP | 12,097 | $1.39M | 0.62% | +12,097 | New |
| Yousif Capital Management, LLC | 12,187 | $1.40M | 0.02% | −395−3.1% | Reduced |
| Ambassador Advisors, LLC | 13,419 | $1.54M | 0.26% | +474+3.7% | Added |
| Keeley-Teton Advisors, LLC | 13,591 | $1.56M | 0.18% | −442−3.1% | Reduced |
| Group One Trading, L.P. | 13,618 | $1.56M | 0.05% | +13,158+2,860.4% | Added |
| Korea Investment CORP | 13,627 | $1.56M | 0.00% | +7,900+137.9% | Added |
| New York State Common Retirement Fund | 13,975 | $1.60M | 0.00% | −1,500−9.7% | Reduced |
| Treasurer of the State of North Carolina | 14,742 | $1.69M | 0.01% | +90+0.6% | Added |
| Recurrent Investment Advisors LLC | 15,118 | $1.73M | 0.16% | +5,877+63.6% | Added |
| Wealthfront Advisers LLC | 15,157 | $1.74M | 0.01% | −1,057−6.5% | Reduced |
| Appian Way Asset Management LP | 15,172 | $1.74M | 0.40% | −50,446−76.9% | Reduced |
| Mn Services Vermogensbeheer B.V. | 15,600 | $1.79M | 0.01% | 00.0% | Unchanged |
| Amalgamated Bank | 15,682 | $1.80M | 0.01% | 00.0% | Unchanged |
| Royal London Asset Management Ltd | 15,906 | $1.82M | 0.00% | +2,055+14.8% | Added |
| Marshall Wace, LLP | 15,914 | $1.82M | 0.00% | −26,512−62.5% | Reduced |
| Kovitz Investment Group Partners, LLC | 16,022 | $1.84M | 0.01% | +16,022 | New |
| State of New Jersey Common Pension Fund D | 16,535 | $1.90M | 0.01% | +1,949+13.4% | Added |
| Oliver Luxxe Assets LLC | 12,762 | $1.92M | 0.35% | 00.0% | Unchanged |
| AQR Capital Management LLC | 17,426 | $1.99M | 0.00% | −72,827−80.7% | Reduced |
| Cresset Asset Management, LLC | 17,524 | $2.01M | 0.01% | −9,787−35.8% | Reduced |
| Mutual of America Capital Management LLC | 17,677 | $2.03M | 0.02% | −391−2.2% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 17,800 | $2.04M | 0.00% | −41−0.2% | Reduced |
| Graham Capital Management, L.P. | 17,850 | $2.05M | 0.06% | +1,694+10.5% | Added |
| Envestnet Asset Management Inc | 18,277 | $2.10M | 0.00% | −4,300−19.0% | Reduced |
| Manning & Napier Advisors LLC | 18,789 | $2.15M | 0.02% | +8,813+88.3% | Added |
| MetLife Investment Management | 18,865 | $2.16M | 0.01% | +1,584+9.2% | Added |
| APG Asset Management N.V. | 19,900 | $2.20M | 0.01% | +19,900 | New |
| Dana Investment Advisors, Inc. | 20,201 | $2.32M | 0.08% | −2,628−11.5% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 20,300 | $2.33M | 0.00% | +20,300 | New |
| Royal Bank of Canada | 20,366 | $2.34M | 0.00% | +772+3.9% | Added |
| CBOE Vest Financial, LLC | 21,501 | $2.47M | 0.04% | +11,091+106.5% | Added |
| Pictet Asset Management Holding SA | 22,096 | $2.53M | 0.00% | +3,520+18.9% | Added |
| Price T Rowe Associates Inc | 22,124 | $2.54M | 0.00% | +2,354+11.9% | Added |
| South Dakota Investment Council | 22,135 | $2.54M | 0.05% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 22,247 | $2.55M | 0.01% | +469+2.2% | Added |
| ING Groep NV | 22,300 | $2.56M | 0.02% | +2,100+10.4% | Added |
| Worldquant Millennium Advisors LLC | 22,720 | $2.60M | 0.02% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 23,107 | $2.65M | 0.00% | −379−1.6% | Reduced |
| Hudson Bay Capital Management LP | 25,000 | $2.87M | 0.02% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 25,295 | $2.90M | 0.01% | −2,532−9.1% | Reduced |
| Bank of Nova Scotia | 25,296 | $2.90M | 0.01% | +3,469+15.9% | Added |
| LPL Financial LLC | 25,928 | $2.97M | 0.00% | +302+1.2% | Added |
| Quantbot Technologies LP | 26,395 | $3.03M | 0.11% | −4,347−14.1% | Reduced |
| HSBC Holdings PLC | 26,424 | $3.03M | 0.00% | −19,016−41.8% | Reduced |
| National Bank of Canada | 26,976 | $3.09M | 0.00% | +26,811+16,249.1% | Added |
| KBC Group NV | 27,255 | $3.13M | 0.01% | +707+2.7% | Added |
| Great West Life Assurance Co | 27,519 | $3.15M | 0.01% | −10,789−28.2% | Reduced |
| State of Alaska, Department of Revenue | 27,753 | $3.18M | 0.04% | −60−0.2% | Reduced |
| State Board of Administration of Florida Retirement System | 27,975 | $3.21M | 0.01% | +1,780+6.8% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 29,396 | $3.29M | 0.00% | +151+0.5% | Added |
| Comerica Bank | 29,600 | $3.39M | 0.01% | +4,501+17.9% | Added |
| Adage Capital Partners GP, L.L.C. | 30,000 | $3.44M | 0.01% | +30,000 | New |
| Danske Bank A/S | 31,112 | $3.57M | 0.01% | +9,700+45.3% | Added |
| DnB Asset Management AS | 31,196 | $3.58M | 0.02% | +282+0.9% | Added |
| Franklin Resources Inc | 31,781 | $3.64M | 0.00% | +30,051+1,737.1% | Added |
| Citigroup Inc | 33,137 | $3.80M | 0.00% | +23,247+235.1% | Added |
| Assenagon Asset Management S.A. | 35,046 | $4.02M | 0.01% | −66,724−65.6% | Reduced |
| Schonfeld Strategic Advisors LLC | 36,368 | $4.17M | 0.03% | +34,248+1,615.5% | Added |
| Corebridge Financial, Inc. | 37,865 | $4.34M | 0.02% | −1,671−4.2% | Reduced |
| Deutsche Bank AG | 38,583 | $4.42M | 0.00% | +4,887+14.5% | Added |
| Man Group plc | 38,799 | $4.45M | 0.01% | −48,206−55.4% | Reduced |
| Retirement Systems of Alabama | 40,689 | $4.66M | 0.02% | +76+0.2% | Added |
| American Century Companies Inc | 42,660 | $4.89M | 0.00% | −6,678−13.5% | Reduced |
| Knights of Columbus Asset Advisors LLC | 42,847 | $4.91M | 0.32% | +1,081+2.6% | Added |
| Wellington Management Group LLP | 42,934 | $4.92M | 0.00% | +2,281+5.6% | Added |
| California State Teachers Retirement System | 45,111 | $5.17M | 0.01% | −2,443−5.1% | Reduced |
| Jain Global LLC | 48,285 | $5.54M | 0.17% | +48,285 | New |