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, Q1 2023
Institutional positions in Westlake Corp as of Mar 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
- 342
- +6 vs. Q4 2022
- Shares held
- 38.3M
- +1.96M (+5.4%) vs. Q4 2022
- Total value
- $4.40B
- +$671.8M (+18.0%) vs. Q4 2022
- New holders
- 49
- 108 more added
- Sold out
- 43
- 123 more reduced
8 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2023
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| DnB Asset Management AS | 23,127 | $2.68M | 0.02% | +11,316+95.8% | Added |
| State of New Jersey Common Pension Fund D | 22,995 | $2.67M | 0.01% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 22,993 | $2.66M | 0.01% | +2,652+13.0% | Added |
| D. E. Shaw & Co., Inc. | 22,887 | $2.65M | 0.00% | −38,129−62.5% | Reduced |
| Pinebridge Investments, L.P. | 22,696 | $2.63M | 0.03% | −362−1.6% | Reduced |
| Advisors Asset Management, Inc. | 22,429 | $2.60M | 0.05% | +160+0.7% | Added |
| Squarepoint Ops LLC | 22,329 | $2.59M | 0.02% | −18,766−45.7% | Reduced |
| Amalgamated Bank | 22,161 | $2.57M | 0.02% | −3,582−13.9% | Reduced |
| Citigroup Inc | 21,686 | $2.52M | 0.00% | −2,035−8.6% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 21,377 | $2.48M | 0.01% | −35−0.2% | Reduced |
| Prudential Financial Inc | 23,830 | $2.47M | 0.00% | −8,026−25.2% | Reduced |
| MetLife Investment Management | 21,086 | $2.45M | 0.02% | −565−2.6% | Reduced |
| Gotham Asset Management, LLC | 20,929 | $2.43M | 0.06% | +6,422+44.3% | Added |
| California Public Employees Retirement System | 20,464 | $2.37M | 0.00% | +20,464 | New |
| LMCG Investments, LLC | 19,357 | $2.25M | 0.15% | +19,357 | New |
| Agf Management Ltd | 19,208 | $2.23M | 0.02% | +542+2.9% | Added |
| Nisa Investment Advisors, LLC | 18,472 | $2.14M | 0.02% | +10,611+135.0% | Added |
| Yousif Capital Management, LLC | 18,312 | $2.12M | 0.03% | −155−0.8% | Reduced |
| Treasurer of the State of North Carolina | 17,769 | $2.06M | 0.01% | +420+2.4% | Added |
| Twin Capital Management Inc | 17,681 | $2.05M | 0.28% | −1,427−7.5% | Reduced |
| CI Private Wealth, LLC | 17,021 | $1.97M | 0.01% | +905+5.6% | Added |
| Public Employees Retirement System of Ohio | 17,021 | $1.97M | 0.01% | −497−2.8% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 16,973 | $1.97M | 0.00% | +560+3.4% | Added |
| Livforsakringsbolaget Skandia, Omsesidigt | 16,950 | $1.97M | 0.21% | 00.0% | Unchanged |
| SEI Investments Co | 16,485 | $1.91M | 0.00% | +1,334+8.8% | Added |
| Navellier & Associates Inc | 16,413 | $1.90M | 0.40% | −404−2.4% | Reduced |
| Korea Investment CORP | 16,281 | $1.89M | 0.01% | −104,984−86.6% | Reduced |
| Thrivent Financial for Lutherans | 16,015 | $1.86M | 0.00% | −84−0.5% | Reduced |
| Oregon Public Employees Retirement Fund | 15,999 | $1.86M | 0.02% | −472−2.9% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 15,510 | $1.80M | 0.02% | +19+0.1% | Added |
| CWM Advisors, LLC | 14,394 | $1.67M | 0.21% | −99−0.7% | Reduced |
| Asset Management One Co.,Ltd. | 14,338 | $1.66M | 0.01% | −328−2.2% | Reduced |
| Allianz Asset Management GmbH | 14,183 | $1.64M | 0.00% | +376+2.7% | Added |
| Greenland Capital Management LP | 14,000 | $1.62M | 0.19% | +8,000+133.3% | Added |
| Ameritas Investment Partners, Inc. | 13,995 | $1.62M | 0.06% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 13,500 | $1.57M | 0.00% | +3,200+31.1% | Added |
| Panagora Asset Management Inc | 13,147 | $1.52M | 0.01% | −25,329−65.8% | Reduced |
| New York State Teachers Retirement System | 13,092 | $1.52M | 0.00% | +391+3.1% | Added |
| O'Shaughnessy Asset Management, LLC | 12,916 | $1.50M | 0.02% | −22,083−63.1% | Reduced |
| Russell Investments Group, Ltd. | 12,768 | $1.48M | 0.00% | +997+8.5% | Added |
| Recurrent Investment Advisors LLC | 12,731 | $1.48M | 0.29% | +3,100+32.2% | Added |
| LMR Partners LLP | 12,629 | $1.46M | 0.03% | +12,629 | New |
| UBS Group AG | 12,546 | $1.46M | 0.00% | −8,612−40.7% | Reduced |
| HSBC Holdings PLC | 12,411 | $1.44M | 0.00% | +1,410+12.8% | Added |
| Raymond James & Associates | 12,404 | $1.44M | 0.00% | +8,006+182.0% | Added |
| Larson Financial Group LLC | 12,382 | $1.44M | 0.16% | +579+4.9% | Added |
| Jane Street Group, LLC | 12,100 | $1.40M | 0.00% | +6,384+111.7% | Added |
| Pictet Asset Management SA | 11,757 | $1.36M | 0.00% | +200+1.7% | Added |
| Neuberger Berman Group LLC | 11,145 | $1.29M | 0.00% | +871+8.5% | Added |
| Arizona State Retirement System | 11,123 | $1.29M | 0.01% | +257+2.4% | Added |
| Toronto Dominion Bank | 10,607 | $1.23M | 0.00% | −610−5.4% | Reduced |
| IFM Investors Pty Ltd | 10,137 | $1.18M | 0.02% | +2,139+26.7% | Added |
| Aventail Capital Group, LP | 10,000 | $1.16M | 0.10% | +10,000 | New |
| Illinois Municipal Retirement Fund | 9,846 | $1.14M | 0.02% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,823 | $1.14M | 0.01% | −639−6.1% | Reduced |
| State of Michigan Retirement System | 9,800 | $1.14M | 0.01% | −100−1.0% | Reduced |
| Financial Enhancement Group LLC | 9,824 | $1.11M | 0.22% | +9,824 | New |
| Nations Financial Group Inc, | 9,169 | $1.06M | 0.11% | +1,898+26.1% | Added |
| Louisiana State Employees Retirement System | 9,100 | $1.06M | 0.03% | −100−1.1% | Reduced |
| V Wealth Advisors LLC | 8,660 | $1.00M | 0.19% | −906−9.5% | Reduced |
| Nomura Asset Management Co Ltd | 8,550 | $991.6K | 0.01% | +147+1.7% | Added |
| Empirical Finance, LLC | 7,950 | $922.0K | 0.09% | 00.0% | Unchanged |
| Diametric Capital, LP | 7,898 | $916.0K | 0.44% | −1,217−13.4% | Reduced |
| Truist Financial Corp | 7,781 | $902.4K | 0.00% | −109−1.4% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 7,639 | $886.0K | 0.02% | +4,453+139.8% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 7,247 | $841.0K | 0.01% | 00.0% | Unchanged |
| Handelsbanken Fonder AB | 7,200 | $835.0K | 0.00% | +1,000+16.1% | Added |
| Toroso Investments, LLC | 7,172 | $832.0K | 0.03% | +3,081+75.3% | Added |
| Susquehanna International Group, LLP | 7,095 | $822.9K | 0.00% | +7,095 | New |
| Pettee Investors, Inc. | 6,711 | $778.3K | 0.37% | 00.0% | Unchanged |
| CFO4Life Group, LLC | 6,397 | $741.9K | 0.17% | −89−1.4% | Reduced |
| M&G Investment Management Ltd | 6,301 | $730.9K | 0.01% | −1,981−23.9% | Reduced |
| New Mexico Educational Retirement Board | 6,200 | $719.0K | 0.04% | +800+14.8% | Added |
| Burns Matteson Capital Management, LLC | 6,127 | $710.6K | 0.45% | +6,127 | New |
| Standard Life Aberdeen plc | 6,003 | $696.2K | 0.00% | +2,764+85.3% | Added |
| Vestcor Inc | 5,999 | $696.0K | 0.03% | 00.0% | Unchanged |
| Verition Fund Management LLC | 5,887 | $682.8K | 0.01% | −134,380−95.8% | Reduced |
| Achmea Investment Management B.V. | 5,840 | $677.0K | 0.02% | 00.0% | Unchanged |
| Cambria Investment Management, L.P. | 5,827 | $675.8K | 0.06% | −9,461−61.9% | Reduced |
| Occudo Quantitative Strategies LP | 5,761 | $668.2K | 0.06% | +5,761 | New |
| Ontario Teachers Pension Plan Board | 5,724 | $663.9K | 0.01% | −4,230−42.5% | Reduced |
| Teachers Retirement System of the State of Kentucky | 5,670 | $658.0K | 0.01% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 5,364 | $622.0K | 0.00% | 00.0% | Unchanged |
| DekaBank Deutsche Girozentrale | 5,365 | $606.0K | 0.00% | +2,072+62.9% | Added |
| Voya Investment Management LLC | 5,193 | $602.3K | 0.00% | +599+13.0% | Added |
| Gulf International Bank (UK) Ltd | 5,128 | $594.0K | 0.01% | −1,312−20.4% | Reduced |
| Winton Group Ltd | 5,045 | $585.1K | 0.04% | −1,966−28.0% | Reduced |
| Unison Advisors LLC | 4,979 | $577.5K | 0.06% | +21+0.4% | Added |
| Natixis | 4,900 | $568.3K | 0.01% | +4,900 | New |
| JustInvest LLC | 4,887 | $566.8K | 0.02% | +258+5.6% | Added |
| Xponance, Inc. | 4,556 | $528.4K | 0.01% | +29+0.6% | Added |
| Bank of Montreal | 4,536 | $527.0K | 0.00% | −374−7.6% | Reduced |
| Jefferies Financial Group Inc. | 4,500 | $521.9K | 0.01% | +4,500 | New |
| Captrust Financial Advisors | 4,316 | $500.6K | 0.00% | +79+1.9% | Added |
| Versor Investments LP | 4,300 | $498.7K | 0.07% | +4,300 | New |
| Nissay Asset Management Corp | 4,296 | $498.3K | 0.00% | −74−1.7% | Reduced |
| Teacher Retirement System of Texas | 4,256 | $494.0K | 0.00% | −98−2.3% | Reduced |
| SG Americas Securities, LLC | 4,226 | $490.0K | 0.01% | +339+8.7% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 4,141 | $480.0K | 0.00% | −546−11.6% | Reduced |
| Legacy Capital Group California, Inc. | 4,132 | $479.2K | 0.23% | +4,132 | New |