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 2025
Institutional positions in Westlake Corp as of Mar 31, 2025. 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
- 361
- −14 vs. Q4 2024
- Shares held
- 36.4M
- +2.10M (+6.1%) vs. Q4 2024
- Total value
- $3.64B
- −$292.4M (−7.4%) vs. Q4 2024
- New holders
- 47
- 147 more added
- Sold out
- 61
- 115 more reduced
3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Nissay Asset Management Corp | 4,940 | $494.1K | 0.00% | +63+1.3% | Added |
| Police & Firemen's Retirement System of New Jersey | 4,822 | $482.3K | 0.00% | 00.0% | Unchanged |
| Wellington Management Group LLP | 4,674 | $467.5K | 0.00% | −38,260−89.1% | Reduced |
| IFM Investors Pty Ltd | 4,629 | $463.0K | 0.01% | 00.0% | Unchanged |
| Truist Financial Corp | 4,581 | $458.2K | 0.00% | +4,581 | New |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 4,512 | $451.3K | 0.00% | −38−0.8% | Reduced |
| Quantbot Technologies LP | 4,451 | $445.2K | 0.01% | −21,944−83.1% | Reduced |
| CIBC Asset Management Inc | 4,362 | $436.3K | 0.00% | +128+3.0% | Added |
| Entropy Technologies, LP | 4,331 | $433.2K | 0.04% | −4,112−48.7% | Reduced |
| Polymer Capital Management (US) LLC | 4,235 | $423.6K | 0.13% | −4,566−51.9% | Reduced |
| Voya Investment Management LLC | 4,190 | $419.1K | 0.00% | +118+2.9% | Added |
| OP Asset Management Ltd | 4,172 | $417.3K | 0.01% | +4,172 | New |
| Twinbeech Capital LP | 4,036 | $403.7K | 0.01% | +1,744+76.1% | Added |
| Total Wealth Planning & Management, Inc. | 3,965 | $396.6K | 0.41% | +1,344+51.3% | Added |
| Kestra Investment Management, LLC | 3,951 | $395.2K | 0.01% | −494−11.1% | Reduced |
| Oxford Asset Management LLP | 3,948 | $394.9K | 0.18% | +3,948 | New |
| Commonwealth Equity Services, LLC | 3,835 | $384.0K | 0.00% | +463+13.7% | Added |
| Occudo Quantitative Strategies LP | 3,777 | $374.4K | 0.05% | +1,970+109.0% | Added |
| TD Asset Management Inc | 3,688 | $368.9K | 0.00% | −310−7.8% | Reduced |
| Public Employees Retirement Association of Colorado | 3,650 | $365.0K | 0.00% | 00.0% | Unchanged |
| DekaBank Deutsche Girozentrale | 3,518 | $344.0K | 0.00% | −22−0.6% | Reduced |
| SummitTX Capital, L.P. | 3,352 | $335.3K | 0.01% | +3,352 | New |
| Applied Finance Capital Management, LLC | 3,232 | $323.3K | 0.02% | +104+3.3% | Added |
| Captrust Financial Advisors | 3,226 | $322.7K | 0.00% | +10+0.3% | Added |
| Prudential Financial Inc | 3,206 | $320.7K | 0.00% | −930−22.5% | Reduced |
| Federated Hermes, Inc. | 3,169 | $317.0K | 0.00% | −340−9.7% | Reduced |
| CWM Advisors, LLC | 3,140 | $314.1K | 0.04% | +894+39.8% | Added |
| Gulf International Bank (UK) Ltd | 3,068 | $306.0K | 0.01% | 00.0% | Unchanged |
| Yorktown Management & Research Co Inc | 3,050 | $305.1K | 0.33% | 00.0% | Unchanged |
| Cetera Investment Advisers | 3,030 | $303.1K | 0.00% | +23+0.8% | Added |
| Daiwa Securities Group Inc. | 3,024 | $302.0K | 0.00% | 00.0% | Unchanged |
| Bayesian Capital Management, LP | 2,841 | $284.2K | 0.05% | +2,841 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 2,816 | $281.7K | 0.00% | +2,816 | New |
| Neuberger Berman Group LLC | 2,775 | $277.6K | 0.00% | −176−6.0% | Reduced |
| Engineers Gate Manager LP | 2,737 | $273.8K | 0.00% | +138+5.3% | Added |
| Avanza Fonder AB | 2,680 | $273.4K | 0.01% | 00.0% | Unchanged |
| Crossmark Global Holdings, Inc. | 2,731 | $273.2K | 0.00% | +23+0.8% | Added |
| Versant Capital Management, Inc | 2,677 | $267.8K | 0.04% | +2,146+404.1% | Added |
| 111 Capital | 2,670 | $267.1K | 0.05% | +2,670 | New |
| PGGM Investments | 2,668 | $267.0K | 0.00% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 2,660 | $266.1K | 0.01% | +1,936+267.4% | Added |
| Catalyst Funds Management Pty Ltd | 2,600 | $260.1K | 0.07% | +2,600 | New |
| Swiss Life Asset Management Ltd | 2,583 | $258.4K | 0.00% | +2,583 | New |
| HighTower Advisors, LLC | 2,548 | $254.9K | 0.00% | −157−5.8% | Reduced |
| Nordea Investment Management AB | 2,560 | $252.4K | 0.00% | −1,843−41.9% | Reduced |
| Brown Advisory Inc | 2,504 | $250.5K | 0.00% | −26−1.0% | Reduced |
| Securian Asset Management, Inc | 2,503 | $250.4K | 0.01% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 2,499 | $250.0K | 0.00% | +275+12.4% | Added |
| ASR Vermogensbeheer N.V. | 2,490 | $249.1K | 0.00% | +2,490 | New |
| Oppenheimer & Co Inc | 2,415 | $241.6K | 0.00% | −70−2.8% | Reduced |
| Allianz Asset Management GmbH | 2,410 | $241.1K | 0.00% | −852−26.1% | Reduced |
| Jump Financial, LLC | 2,322 | $232.3K | 0.00% | +2,322 | New |
| Quadrature Capital Ltd | 2,298 | $229.9K | 0.01% | −1,752−43.3% | Reduced |
| US Bancorp | 2,295 | $229.6K | 0.00% | +267+13.2% | Added |
| Kentucky Retirement Systems | 2,289 | $229.0K | 0.01% | +2,289 | New |
| McMahon Financial Advisors, LLC | 2,171 | $217.2K | 0.05% | +2,171 | New |
| United Services Automobile Association | 2,133 | $211.4K | 0.01% | +2,133 | New |
| Franklin Resources Inc | 2,071 | $207.2K | 0.00% | −29,710−93.5% | Reduced |
| Eagle Global Advisors LLC | 2,066 | $206.7K | 0.01% | 00.0% | Unchanged |
| Credit Agricole S A | 1,563 | $156.3K | 0.00% | +1+0.1% | Added |
| Northwestern Mutual Wealth Management Co | 1,548 | $154.9K | 0.00% | −3−0.2% | Reduced |
| Kimelman & Baird, LLC | 1,500 | $150.0K | 0.01% | 00.0% | Unchanged |
| Macquarie Group Ltd | 1,426 | $142.6K | 0.00% | −1,795−55.7% | Reduced |
| MAI Capital Management | 1,310 | $131.0K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 1,282 | $128.2K | 0.00% | +45+3.6% | Added |
| Tower Research Capital LLC (TRC) | 1,107 | $108.6K | 0.00% | −3,698−77.0% | Reduced |
| Rakuten Investment Management, Inc. | 1,065 | $105.6K | 0.00% | +1,065 | New |
| Vestcor Inc | 888 | $89.0K | 0.00% | −3,093−77.7% | Reduced |
| Wahed Invest LLC | 879 | $87.9K | 0.02% | +213+32.0% | Added |
| Allworth Financial LP | 922 | $87.4K | 0.00% | +537+139.5% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 622 | $62.0K | 0.00% | 00.0% | Unchanged |
| Skopos Labs, Inc. | 601 | $60.1K | 0.01% | +239+66.0% | Added |
| Federation des caisses Desjardins du Quebec | 579 | $57.9K | 0.00% | +220+61.3% | Added |
| Caitong International Asset Management Co., Ltd | 559 | $55.9K | 0.04% | +541+3,005.6% | Added |
| GAMMA Investing LLC | 534 | $53.4K | 0.00% | +11+2.1% | Added |
| Itau Unibanco Holding S.A. | 534 | $53.0K | 0.00% | −3−0.6% | Reduced |
| Parallel Advisors, LLC | 525 | $52.5K | 0.00% | +133+33.9% | Added |
| Fifth Third Bancorp | 514 | $51.4K | 0.00% | +215+71.9% | Added |
| GWM Advisors LLC | 498 | $49.8K | 0.00% | −60−10.8% | Reduced |
| Transamerica Financial Advisors, Inc. | 439 | $44.0K | 0.00% | +50+12.9% | Added |
| Signaturefd, LLC | 427 | $42.7K | 0.00% | +239+127.1% | Added |
| Siemens Fonds Invest GmbH | 413 | $41.3K | 0.00% | +413 | New |
| CWM, LLC | 367 | $37.0K | 0.00% | −94−20.4% | Reduced |
| Arcadia Investment Management Corp | 350 | $35.0K | 0.01% | 00.0% | Unchanged |
| Private Trust Co NA | 316 | $31.6K | 0.00% | +226+251.1% | Added |
| Coldstream Capital Management Inc | 289 | $28.9K | 0.00% | +289 | New |
| Umb Bank N A | 273 | $27.3K | 0.00% | +75+37.9% | Added |
| Jones Financial Companies LLLP | 254 | $25.2K | 0.00% | +44+21.0% | Added |
| Natixis | 248 | $24.6K | 0.00% | +53+27.2% | Added |
| CIBC Private Wealth Group, LLC | 287 | $23.8K | 0.00% | +287 | New |
| Smartleaf Asset Management LLC | 226 | $22.4K | 0.00% | −26−10.3% | Reduced |
| Livforsakringsbolaget Skandia, Omsesidigt | 200 | $20.0K | 0.00% | 00.0% | Unchanged |
| CVA Family Office, LLC | 195 | $19.5K | 0.00% | −22−10.1% | Reduced |
| SRS Capital Advisors, Inc. | 189 | $18.9K | 0.00% | +181+2,262.5% | Added |
| Nisa Investment Advisors, LLC | 186 | $18.6K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 185 | $18.3K | 0.00% | +185 | New |
| Quent Capital, LLC | 165 | $16.5K | 0.00% | +49+42.2% | Added |
| CoreCap Advisors, LLC | 163 | $16.3K | 0.00% | +40+32.5% | Added |
| Ci Investments Inc. | 164 | $16.0K | 0.00% | −13−7.3% | Reduced |
| Lindbrook Capital, LLC | 158 | $15.8K | 0.00% | +88+125.7% | Added |