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 2023
Institutional positions in Westlake Corp as of Dec 31, 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
- 357
- +28 vs. Q3 2023
- Shares held
- 36.0M
- −1.11M (−3.0%) vs. Q3 2023
- Total value
- $5.04B
- +$412.6M (+8.9%) vs. Q3 2023
- New holders
- 57
- 103 more added
- Sold out
- 29
- 137 more reduced
6 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| South Dakota Investment Council | 24,155 | $3.38M | 0.07% | 00.0% | Unchanged |
| Envestnet Asset Management Inc | 22,611 | $3.16M | 0.00% | +1,093+5.1% | Added |
| Susquehanna International Group, LLP | 22,157 | $3.10M | 0.01% | +115+0.5% | Added |
| Amalgamated Bank | 21,886 | $3.06M | 0.02% | +1,030+4.9% | Added |
| State of New Jersey Common Pension Fund D | 21,838 | $3.06M | 0.01% | −1,157−5.0% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 21,921 | $3.03M | 0.01% | −376−1.7% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 20,830 | $2.92M | 0.01% | −1,074−4.9% | Reduced |
| Comerica Bank | 20,780 | $2.91M | 0.01% | +737+3.7% | Added |
| LPL Financial LLC | 20,049 | $2.81M | 0.00% | −133−0.7% | Reduced |
| New York State Common Retirement Fund | 19,982 | $2.80M | 0.00% | −4,410−18.1% | Reduced |
| Mutual of America Capital Management LLC | 19,809 | $2.77M | 0.03% | −959−4.6% | Reduced |
| Pinebridge Investments, L.P. | 19,510 | $2.73M | 0.03% | −17,932−47.9% | Reduced |
| Agf Management Ltd | 19,108 | $2.67M | 0.02% | −2,012−9.5% | Reduced |
| Prudential Financial Inc | 18,355 | $2.57M | 0.00% | −1,846−9.1% | Reduced |
| MetLife Investment Management | 18,070 | $2.53M | 0.02% | −232−1.3% | Reduced |
| Royal Bank of Canada | 17,805 | $2.49M | 0.00% | +1,668+10.3% | Added |
| Alaska Permanent Fund Corp | 17,416 | $2.44M | 0.04% | −3,484−16.7% | Reduced |
| Empowered Funds, LLC | 16,973 | $2.38M | 0.06% | +362+2.2% | Added |
| HSBC Holdings PLC | 16,259 | $2.28M | 0.00% | −2,961−15.4% | Reduced |
| Asset Management One Co.,Ltd. | 15,846 | $2.23M | 0.01% | −371−2.3% | Reduced |
| CI Private Wealth, LLC | 15,724 | $2.20M | 0.00% | −806−4.9% | Reduced |
| Public Employees Retirement System of Ohio | 15,516 | $2.17M | 0.01% | +332+2.2% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 15,309 | $2.14M | 0.05% | +4,966+48.0% | Added |
| Yousif Capital Management, LLC | 15,288 | $2.14M | 0.03% | −349−2.2% | Reduced |
| Jump Financial, LLC | 14,986 | $2.10M | 0.07% | +187+1.3% | Added |
| Livforsakringsbolaget Skandia, Omsesidigt | 14,650 | $2.05M | 0.20% | −15,350−51.2% | Reduced |
| Gotham Asset Management, LLC | 14,629 | $2.05M | 0.04% | −6,209−29.8% | Reduced |
| Illinois Municipal Retirement Fund | 13,975 | $1.96M | 0.03% | +4,129+41.9% | Added |
| Aviva PLC | 13,651 | $1.91M | 0.01% | −105,726−88.6% | Reduced |
| CWM Advisors, LLC | 13,569 | $1.90M | 0.21% | −7,659−36.1% | Reduced |
| Twin Capital Management Inc | 13,504 | $1.89M | 0.25% | −344−2.5% | Reduced |
| Panagora Asset Management Inc | 13,147 | $1.84M | 0.01% | 00.0% | Unchanged |
| Ambassador Advisors, LLC | 13,081 | $1.81M | 0.40% | −3,270−20.0% | Reduced |
| Handelsbanken Fonder AB | 12,900 | $1.80M | 0.01% | +5,700+79.2% | Added |
| SEI Investments Co | 12,389 | $1.73M | 0.00% | −3,517−22.1% | Reduced |
| Ameritas Investment Partners, Inc. | 12,259 | $1.72M | 0.06% | 00.0% | Unchanged |
| Teachers Retirement System of the State of Kentucky | 11,945 | $1.67M | 0.02% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 11,924 | $1.67M | 0.00% | −389−3.2% | Reduced |
| Wealthfront Advisers LLC | 11,909 | $1.67M | 0.01% | +2,870+31.8% | Added |
| New York State Teachers Retirement System | 11,743 | $1.64M | 0.00% | −2,900−19.8% | Reduced |
| O'Shaughnessy Asset Management, LLC | 11,728 | $1.64M | 0.02% | −1,281−9.8% | Reduced |
| Neuberger Berman Group LLC | 11,622 | $1.63M | 0.00% | −4,136−26.2% | Reduced |
| Oregon Public Employees Retirement Fund | 11,581 | $1.62M | 0.03% | −1,965−14.5% | Reduced |
| Truist Financial Corp | 11,261 | $1.58M | 0.00% | −1,608−12.5% | Reduced |
| Standard Life Aberdeen plc | 11,223 | $1.57M | 0.00% | +5,628+100.6% | Added |
| Federation des caisses Desjardins du Quebec | 10,674 | $1.49M | 0.01% | +9,281+666.3% | Added |
| Arizona State Retirement System | 10,528 | $1.47M | 0.01% | +81+0.8% | Added |
| Cresset Asset Management, LLC | 10,395 | $1.45M | 0.01% | +1,014+10.8% | Added |
| DnB Asset Management AS | 10,341 | $1.45M | 0.01% | −8,086−43.9% | Reduced |
| Recurrent Investment Advisors LLC | 10,161 | $1.42M | 0.21% | −3,898−27.7% | Reduced |
| Nomura Asset Management Co Ltd | 10,107 | $1.41M | 0.01% | 00.0% | Unchanged |
| Nations Financial Group Inc, | 9,995 | $1.40M | 0.13% | +154+1.6% | Added |
| Quantbot Technologies LP | 9,983 | $1.40M | 0.08% | +9,983 | New |
| Jane Street Group, LLC | 9,161 | $1.28M | 0.00% | −24,596−72.9% | Reduced |
| Louisiana State Employees Retirement System | 9,000 | $1.26M | 0.03% | 00.0% | Unchanged |
| B. Metzler seel. Sohn & Co. AG | 9,000 | $1.26M | 0.02% | +9,000 | New |
| Inspire Advisors, LLC | 8,818 | $1.23M | 0.19% | +8,818 | New |
| Baird Financial Group, Inc. | 8,676 | $1.21M | 0.00% | −206−2.3% | Reduced |
| State of Michigan Retirement System | 8,600 | $1.20M | 0.01% | 00.0% | Unchanged |
| Thrivent Financial for Lutherans | 8,003 | $1.12M | 0.00% | +10+0.1% | Added |
| AustralianSuper Pty Ltd | 7,723 | $1.08M | 0.01% | 00.0% | Unchanged |
| Skandinaviska Enskilda Banken AB (publ) | 7,201 | $1.01M | 0.01% | 00.0% | Unchanged |
| Korea Investment CORP | 7,135 | $998.6K | 0.00% | +5,433+319.2% | Added |
| Northwestern Mutual Investment Management Company, LLC | 7,127 | $997.5K | 0.03% | +47+0.7% | Added |
| Diametric Capital, LP | 7,105 | $994.4K | 0.61% | −972−12.0% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 7,069 | $989.4K | 0.01% | +605+9.4% | Added |
| New Mexico Educational Retirement Board | 7,000 | $980.0K | 0.04% | 00.0% | Unchanged |
| Pettee Investors, Inc. | 6,711 | $939.3K | 0.41% | 00.0% | Unchanged |
| PEAK6 Investments LLC | 6,533 | $914.4K | 0.04% | +6,533 | New |
| JustInvest LLC | 6,466 | $905.0K | 0.02% | +485+8.1% | Added |
| Tredje AP-fonden | 6,317 | $884.1K | 0.01% | 00.0% | Unchanged |
| Seven Eight Capital, LP | 6,103 | $854.2K | 0.10% | +6,103 | New |
| Vestcor Inc | 5,980 | $837.0K | 0.03% | −19−0.3% | Reduced |
| Denali Advisors LLC | 5,925 | $829.3K | 0.25% | +200+3.5% | Added |
| Voya Investment Management LLC | 5,681 | $795.1K | 0.00% | +72+1.3% | Added |
| Achmea Investment Management B.V. | 5,685 | $795.0K | 0.02% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 5,647 | $790.2K | 0.00% | −539−8.7% | Reduced |
| Advisors Asset Management, Inc. | 5,463 | $764.6K | 0.02% | −2,292−29.6% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,194 | $727.0K | 0.00% | −12,556−70.7% | Reduced |
| PAX Financial Group, LLC | 5,032 | $718.6K | 0.15% | +5,032 | New |
| Entropy Technologies, LP | 5,114 | $715.8K | 0.13% | +5,114 | New |
| Unison Advisors LLC | 5,027 | $703.6K | 0.07% | +19+0.4% | Added |
| Public Employees Retirement Association of Colorado | 4,991 | $699.0K | 0.00% | −373−7.0% | Reduced |
| Toronto Dominion Bank | 4,970 | $695.6K | 0.00% | −2,324−31.9% | Reduced |
| Verition Fund Management LLC | 4,725 | $661.3K | 0.01% | −13−0.3% | Reduced |
| First Eagle Investment Management, LLC | 4,638 | $649.1K | 0.00% | 00.0% | Unchanged |
| FORA Capital, LLC | 4,582 | $641.3K | 0.06% | +4,582 | New |
| Duality Advisers, LP | 4,542 | $635.7K | 0.07% | −1,857−29.0% | Reduced |
| Creative Planning | 4,465 | $624.9K | 0.00% | +1,276+40.0% | Added |
| Nissay Asset Management Corp | 4,456 | $623.7K | 0.01% | +145+3.4% | Added |
| British Columbia Investment Management Corp | 4,414 | $617.8K | 0.01% | +1,018+30.0% | Added |
| Captrust Financial Advisors | 4,411 | $617.4K | 0.00% | −210−4.5% | Reduced |
| Cambria Investment Management, L.P. | 4,388 | $614.1K | 0.04% | +415+10.4% | Added |
| Tower Research Capital LLC (TRC) | 4,314 | $603.8K | 0.01% | +2,838+192.3% | Added |
| Legacy Capital Group California, Inc. | 4,256 | $595.7K | 0.23% | +88+2.1% | Added |
| HighTower Advisors, LLC | 4,232 | $590.0K | 0.00% | +1,380+48.4% | Added |
| Greenland Capital Management LP | 4,000 | $559.8K | 0.09% | −125−3.0% | Reduced |
| XTX Topco Ltd | 3,960 | $554.2K | 0.12% | +3,960 | New |
| Xponance, Inc. | 3,930 | $550.0K | 0.01% | +32+0.8% | Added |
| Brevan Howard Capital Management LP | 3,926 | $549.5K | 0.06% | +3,926 | New |