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 |
|---|---|---|---|---|---|
| Brown Advisory Inc | 2,237 | $259.4K | 0.00% | −33−1.5% | Reduced |
| Commonwealth Equity Services, LLC | 2,248 | $260.0K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 2,246 | $260.5K | 0.00% | +23+1.0% | Added |
| Colony Group LLC | 2,257 | $262.0K | 0.00% | −250−10.0% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 2,293 | $265.9K | 0.00% | 00.0% | Unchanged |
| SevenOneSeven Capital Management | 2,408 | $273.1K | 0.62% | −983−29.0% | Reduced |
| Silver Oak Securities, Inc | 2,384 | $279.0K | 0.05% | +2,384 | New |
| Harel Insurance Investments & Financial Services Ltd. | 2,482 | $282.0K | 0.01% | +1,503+153.5% | Added |
| Grey Fox Wealth Advisors, LLC | 2,468 | $286.2K | 0.17% | −230−8.5% | Reduced |
| CSS LLC | 2,500 | $289.9K | 0.02% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 2,546 | $295.0K | 0.00% | +2,546 | New |
| Investors Research Corp | 2,550 | $295.7K | 0.08% | 00.0% | Unchanged |
| Kennedy Capital Management, Inc. | 2,659 | $308.4K | 0.01% | −1,292−32.7% | Reduced |
| PGGM Investments | 2,668 | $309.0K | 0.01% | +465+21.1% | Added |
| Raymond James Financial Services Advisors, Inc. | 2,668 | $309.4K | 0.00% | +60+2.3% | Added |
| Royal London Asset Management Ltd | 2,721 | $313.8K | 0.00% | +1,268+87.3% | Added |
| Prospera Financial Services Inc | 2,720 | $315.4K | 0.01% | −33−1.2% | Reduced |
| Synovus Financial Corp | 2,782 | $322.7K | 0.00% | −36−1.3% | Reduced |
| Oppenheimer & Co Inc | 2,797 | $324.4K | 0.01% | −179−6.0% | Reduced |
| Prelude Capital Management, LLC | 2,841 | $329.5K | 0.02% | −2,739−49.1% | Reduced |
| Maryland State Retirement & Pension System | 2,848 | $330.3K | 0.01% | 00.0% | Unchanged |
| Private Advisor Group, LLC | 2,887 | $334.9K | 0.00% | +2,887 | New |
| Hennion & Walsh Asset Management, Inc. | 2,912 | $338.0K | 0.02% | −96−3.2% | Reduced |
| L2 Asset Management, LLC | 2,932 | $340.1K | 0.20% | −7,955−73.1% | Reduced |
| TD Asset Management Inc | 2,990 | $346.8K | 0.00% | −140−4.5% | Reduced |
| Yorktown Management & Research Co Inc | 3,050 | $353.7K | 0.38% | 00.0% | Unchanged |
| Securian Asset Management, Inc | 3,158 | $366.3K | 0.01% | 00.0% | Unchanged |
| BTC Capital Management, Inc. | 3,171 | $367.8K | 0.04% | −214−6.3% | Reduced |
| National Bank of Canada | 3,221 | $373.8K | 0.00% | +354+12.3% | Added |
| McMahon Financial Advisors, LLC | 3,237 | $375.4K | 0.12% | +3,237 | New |
| Meixler Investment Management, Ltd. | 3,279 | $380.3K | 0.37% | −58−1.7% | Reduced |
| Crossmark Global Holdings, Inc. | 3,371 | $391.0K | 0.01% | +449+15.4% | Added |
| British Columbia Investment Management Corp | 3,396 | $393.9K | 0.00% | 00.0% | Unchanged |
| Kistler-Tiffany Companies, LLC | 3,441 | $399.1K | 0.08% | +1,382+67.1% | Added |
| Westpac Banking Corp | 3,454 | $400.6K | 0.01% | 00.0% | Unchanged |
| Millennium Management LLC | 3,528 | $409.0K | 0.00% | −4,925−58.3% | Reduced |
| Lindenwold Advisors | 3,552 | $412.0K | 0.26% | +3,552 | New |
| Westover Capital Advisors, LLC | 3,560 | $412.9K | 0.15% | −17−0.5% | Reduced |
| Atria Wealth Solutions, Inc. | 3,670 | $425.6K | 0.01% | 00.0% | Unchanged |
| Acrisure Capital Management, LLC | 4,016 | $465.8K | 0.47% | +4,016 | New |
| Denali Advisors LLC | 4,019 | $466.1K | 0.19% | −2,281−36.2% | Reduced |
| Mount Lucas Management LP | 4,123 | $478.2K | 0.16% | −231−5.3% | Reduced |
| Legacy Capital Group California, Inc. | 4,132 | $479.2K | 0.23% | +4,132 | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 4,141 | $480.0K | 0.00% | −546−11.6% | Reduced |
| SG Americas Securities, LLC | 4,226 | $490.0K | 0.01% | +339+8.7% | Added |
| Teacher Retirement System of Texas | 4,256 | $494.0K | 0.00% | −98−2.3% | Reduced |
| Nissay Asset Management Corp | 4,296 | $498.3K | 0.00% | −74−1.7% | Reduced |
| Versor Investments LP | 4,300 | $498.7K | 0.07% | +4,300 | New |
| Captrust Financial Advisors | 4,316 | $500.6K | 0.00% | +79+1.9% | Added |
| Jefferies Financial Group Inc. | 4,500 | $521.9K | 0.01% | +4,500 | New |
| Bank of Montreal | 4,536 | $527.0K | 0.00% | −374−7.6% | Reduced |
| Xponance, Inc. | 4,556 | $528.4K | 0.01% | +29+0.6% | Added |
| JustInvest LLC | 4,887 | $566.8K | 0.02% | +258+5.6% | Added |
| Natixis | 4,900 | $568.3K | 0.01% | +4,900 | New |
| Unison Advisors LLC | 4,979 | $577.5K | 0.06% | +21+0.4% | Added |
| Winton Group Ltd | 5,045 | $585.1K | 0.04% | −1,966−28.0% | Reduced |
| Gulf International Bank (UK) Ltd | 5,128 | $594.0K | 0.01% | −1,312−20.4% | Reduced |
| Voya Investment Management LLC | 5,193 | $602.3K | 0.00% | +599+13.0% | Added |
| DekaBank Deutsche Girozentrale | 5,365 | $606.0K | 0.00% | +2,072+62.9% | Added |
| Public Employees Retirement Association of Colorado | 5,364 | $622.0K | 0.00% | 00.0% | Unchanged |
| Teachers Retirement System of the State of Kentucky | 5,670 | $658.0K | 0.01% | 00.0% | Unchanged |
| Ontario Teachers Pension Plan Board | 5,724 | $663.9K | 0.01% | −4,230−42.5% | Reduced |
| Occudo Quantitative Strategies LP | 5,761 | $668.2K | 0.06% | +5,761 | New |
| Cambria Investment Management, L.P. | 5,827 | $675.8K | 0.06% | −9,461−61.9% | Reduced |
| Achmea Investment Management B.V. | 5,840 | $677.0K | 0.02% | 00.0% | Unchanged |
| Verition Fund Management LLC | 5,887 | $682.8K | 0.01% | −134,380−95.8% | Reduced |
| Vestcor Inc | 5,999 | $696.0K | 0.03% | 00.0% | Unchanged |
| Standard Life Aberdeen plc | 6,003 | $696.2K | 0.00% | +2,764+85.3% | Added |
| Burns Matteson Capital Management, LLC | 6,127 | $710.6K | 0.45% | +6,127 | New |
| New Mexico Educational Retirement Board | 6,200 | $719.0K | 0.04% | +800+14.8% | Added |
| M&G Investment Management Ltd | 6,301 | $730.9K | 0.01% | −1,981−23.9% | Reduced |
| CFO4Life Group, LLC | 6,397 | $741.9K | 0.17% | −89−1.4% | Reduced |
| Pettee Investors, Inc. | 6,711 | $778.3K | 0.37% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 7,095 | $822.9K | 0.00% | +7,095 | New |
| Toroso Investments, LLC | 7,172 | $832.0K | 0.03% | +3,081+75.3% | Added |
| Handelsbanken Fonder AB | 7,200 | $835.0K | 0.00% | +1,000+16.1% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 7,247 | $841.0K | 0.01% | 00.0% | Unchanged |
| Northwestern Mutual Investment Management Company, LLC | 7,639 | $886.0K | 0.02% | +4,453+139.8% | Added |
| Truist Financial Corp | 7,781 | $902.4K | 0.00% | −109−1.4% | Reduced |
| Diametric Capital, LP | 7,898 | $916.0K | 0.44% | −1,217−13.4% | Reduced |
| Empirical Finance, LLC | 7,950 | $922.0K | 0.09% | 00.0% | Unchanged |
| Nomura Asset Management Co Ltd | 8,550 | $991.6K | 0.01% | +147+1.7% | Added |
| V Wealth Advisors LLC | 8,660 | $1.00M | 0.19% | −906−9.5% | Reduced |
| Louisiana State Employees Retirement System | 9,100 | $1.06M | 0.03% | −100−1.1% | Reduced |
| Nations Financial Group Inc, | 9,169 | $1.06M | 0.11% | +1,898+26.1% | Added |
| Financial Enhancement Group LLC | 9,824 | $1.11M | 0.22% | +9,824 | New |
| State of Michigan Retirement System | 9,800 | $1.14M | 0.01% | −100−1.0% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,823 | $1.14M | 0.01% | −639−6.1% | Reduced |
| Illinois Municipal Retirement Fund | 9,846 | $1.14M | 0.02% | 00.0% | Unchanged |
| Aventail Capital Group, LP | 10,000 | $1.16M | 0.10% | +10,000 | New |
| IFM Investors Pty Ltd | 10,137 | $1.18M | 0.02% | +2,139+26.7% | Added |
| Toronto Dominion Bank | 10,607 | $1.23M | 0.00% | −610−5.4% | Reduced |
| Arizona State Retirement System | 11,123 | $1.29M | 0.01% | +257+2.4% | Added |
| Neuberger Berman Group LLC | 11,145 | $1.29M | 0.00% | +871+8.5% | Added |
| Pictet Asset Management SA | 11,757 | $1.36M | 0.00% | +200+1.7% | Added |
| Jane Street Group, LLC | 12,100 | $1.40M | 0.00% | +6,384+111.7% | Added |
| Larson Financial Group LLC | 12,382 | $1.44M | 0.16% | +579+4.9% | Added |
| Raymond James & Associates | 12,404 | $1.44M | 0.00% | +8,006+182.0% | Added |
| HSBC Holdings PLC | 12,411 | $1.44M | 0.00% | +1,410+12.8% | Added |
| UBS Group AG | 12,546 | $1.46M | 0.00% | −8,612−40.7% | Reduced |