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 |
|---|---|---|---|---|---|
| Credit Agricole S A | 1,563 | $156.3K | 0.00% | +1+0.1% | Added |
| Eagle Global Advisors LLC | 2,066 | $206.7K | 0.01% | 00.0% | Unchanged |
| Franklin Resources Inc | 2,071 | $207.2K | 0.00% | −29,710−93.5% | Reduced |
| United Services Automobile Association | 2,133 | $211.4K | 0.01% | +2,133 | New |
| McMahon Financial Advisors, LLC | 2,171 | $217.2K | 0.05% | +2,171 | New |
| Kentucky Retirement Systems | 2,289 | $229.0K | 0.01% | +2,289 | New |
| US Bancorp | 2,295 | $229.6K | 0.00% | +267+13.2% | Added |
| Quadrature Capital Ltd | 2,298 | $229.9K | 0.01% | −1,752−43.3% | Reduced |
| Jump Financial, LLC | 2,322 | $232.3K | 0.00% | +2,322 | New |
| Allianz Asset Management GmbH | 2,410 | $241.1K | 0.00% | −852−26.1% | Reduced |
| Oppenheimer & Co Inc | 2,415 | $241.6K | 0.00% | −70−2.8% | Reduced |
| ASR Vermogensbeheer N.V. | 2,490 | $249.1K | 0.00% | +2,490 | New |
| Advisor Group Holdings, Inc. | 2,499 | $250.0K | 0.00% | +275+12.4% | Added |
| Securian Asset Management, Inc | 2,503 | $250.4K | 0.01% | 00.0% | Unchanged |
| Brown Advisory Inc | 2,504 | $250.5K | 0.00% | −26−1.0% | Reduced |
| Nordea Investment Management AB | 2,560 | $252.4K | 0.00% | −1,843−41.9% | Reduced |
| HighTower Advisors, LLC | 2,548 | $254.9K | 0.00% | −157−5.8% | Reduced |
| Swiss Life Asset Management Ltd | 2,583 | $258.4K | 0.00% | +2,583 | New |
| Catalyst Funds Management Pty Ltd | 2,600 | $260.1K | 0.07% | +2,600 | New |
| Quadrant Capital Group LLC | 2,660 | $266.1K | 0.01% | +1,936+267.4% | Added |
| PGGM Investments | 2,668 | $267.0K | 0.00% | 00.0% | Unchanged |
| 111 Capital | 2,670 | $267.1K | 0.05% | +2,670 | New |
| Versant Capital Management, Inc | 2,677 | $267.8K | 0.04% | +2,146+404.1% | Added |
| Crossmark Global Holdings, Inc. | 2,731 | $273.2K | 0.00% | +23+0.8% | Added |
| Avanza Fonder AB | 2,680 | $273.4K | 0.01% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 2,737 | $273.8K | 0.00% | +138+5.3% | Added |
| Neuberger Berman Group LLC | 2,775 | $277.6K | 0.00% | −176−6.0% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 2,816 | $281.7K | 0.00% | +2,816 | New |
| Bayesian Capital Management, LP | 2,841 | $284.2K | 0.05% | +2,841 | New |
| Daiwa Securities Group Inc. | 3,024 | $302.0K | 0.00% | 00.0% | Unchanged |
| Cetera Investment Advisers | 3,030 | $303.1K | 0.00% | +23+0.8% | Added |
| Yorktown Management & Research Co Inc | 3,050 | $305.1K | 0.33% | 00.0% | Unchanged |
| Gulf International Bank (UK) Ltd | 3,068 | $306.0K | 0.01% | 00.0% | Unchanged |
| CWM Advisors, LLC | 3,140 | $314.1K | 0.04% | +894+39.8% | Added |
| Federated Hermes, Inc. | 3,169 | $317.0K | 0.00% | −340−9.7% | Reduced |
| Prudential Financial Inc | 3,206 | $320.7K | 0.00% | −930−22.5% | Reduced |
| Captrust Financial Advisors | 3,226 | $322.7K | 0.00% | +10+0.3% | Added |
| Applied Finance Capital Management, LLC | 3,232 | $323.3K | 0.02% | +104+3.3% | Added |
| SummitTX Capital, L.P. | 3,352 | $335.3K | 0.01% | +3,352 | New |
| DekaBank Deutsche Girozentrale | 3,518 | $344.0K | 0.00% | −22−0.6% | Reduced |
| Public Employees Retirement Association of Colorado | 3,650 | $365.0K | 0.00% | 00.0% | Unchanged |
| TD Asset Management Inc | 3,688 | $368.9K | 0.00% | −310−7.8% | Reduced |
| Occudo Quantitative Strategies LP | 3,777 | $374.4K | 0.05% | +1,970+109.0% | Added |
| Commonwealth Equity Services, LLC | 3,835 | $384.0K | 0.00% | +463+13.7% | Added |
| Oxford Asset Management LLP | 3,948 | $394.9K | 0.18% | +3,948 | New |
| Kestra Investment Management, LLC | 3,951 | $395.2K | 0.01% | −494−11.1% | Reduced |
| Total Wealth Planning & Management, Inc. | 3,965 | $396.6K | 0.41% | +1,344+51.3% | Added |
| Twinbeech Capital LP | 4,036 | $403.7K | 0.01% | +1,744+76.1% | Added |
| OP Asset Management Ltd | 4,172 | $417.3K | 0.01% | +4,172 | New |
| Voya Investment Management LLC | 4,190 | $419.1K | 0.00% | +118+2.9% | Added |
| Polymer Capital Management (US) LLC | 4,235 | $423.6K | 0.13% | −4,566−51.9% | Reduced |
| Entropy Technologies, LP | 4,331 | $433.2K | 0.04% | −4,112−48.7% | Reduced |
| CIBC Asset Management Inc | 4,362 | $436.3K | 0.00% | +128+3.0% | Added |
| Quantbot Technologies LP | 4,451 | $445.2K | 0.01% | −21,944−83.1% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 4,512 | $451.3K | 0.00% | −38−0.8% | Reduced |
| Truist Financial Corp | 4,581 | $458.2K | 0.00% | +4,581 | New |
| IFM Investors Pty Ltd | 4,629 | $463.0K | 0.01% | 00.0% | Unchanged |
| Wellington Management Group LLP | 4,674 | $467.5K | 0.00% | −38,260−89.1% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 4,822 | $482.3K | 0.00% | 00.0% | Unchanged |
| Nissay Asset Management Corp | 4,940 | $494.1K | 0.00% | +63+1.3% | Added |
| Transce3nd, LLC | 4,991 | $497.8K | 0.22% | +585+13.3% | Added |
| Sequent Planning LLC | 4,980 | $498.2K | 0.18% | −13−0.3% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,018 | $502.0K | 0.00% | 00.0% | Unchanged |
| Ostrum Asset Management | 5,023 | $502.5K | 0.03% | +4,824+2,424.1% | Added |
| Unison Advisors LLC | 5,116 | $511.8K | 0.07% | +21+0.4% | Added |
| State of Tennessee, Treasury Department | 5,213 | $521.5K | 0.00% | −2,082−28.5% | Reduced |
| Denali Advisors LLC | 5,322 | $532.4K | 0.06% | −100−1.8% | Reduced |
| Gotham Asset Management, LLC | 5,431 | $543.3K | 0.00% | +1,358+33.3% | Added |
| Teacher Retirement System of Texas | 5,644 | $564.6K | 0.00% | +5,644 | New |
| Toronto Dominion Bank | 5,791 | $579.3K | 0.00% | +601+11.6% | Added |
| Allstate Corp | 5,807 | $580.9K | 0.02% | +5,807 | New |
| O'Shaughnessy Asset Management, LLC | 5,831 | $583.3K | 0.00% | +3,650+167.4% | Added |
| Adage Capital Partners GP, L.L.C. | 5,988 | $599.0K | 0.00% | −24,012−80.0% | Reduced |
| First Eagle Investment Management, LLC | 6,088 | $609.0K | 0.00% | +100+1.7% | Added |
| Lighthouse Investment Partners, LLC | 6,105 | $610.7K | 0.03% | +6,105 | New |
| CAPROCK Group, Inc. | 6,551 | $655.3K | 0.02% | +6,551 | New |
| Peterson Wealth Services | 6,578 | $658.0K | 0.20% | +178+2.8% | Added |
| Petrus Trust Company, LTA | 6,709 | $671.1K | 0.06% | +288+4.5% | Added |
| Pettee Investors, Inc. | 6,711 | $671.3K | 0.40% | 00.0% | Unchanged |
| Xponance, Inc. | 6,776 | $677.8K | 0.01% | −101−1.5% | Reduced |
| Oregon Public Employees Retirement Fund | 6,868 | $687.0K | 0.01% | +100+1.5% | Added |
| Pathstone Holdings, LLC | 6,890 | $689.2K | 0.00% | −97−1.4% | Reduced |
| RiverFront Investment Group, LLC | 6,972 | $697.4K | 0.02% | 00.0% | Unchanged |
| New Mexico Educational Retirement Board | 7,000 | $700.0K | 0.03% | 00.0% | Unchanged |
| Ashton Thomas Private Wealth, LLC | 7,059 | $706.1K | 0.03% | +7,059 | New |
| Illinois Municipal Retirement Fund | 7,075 | $707.7K | 0.01% | 00.0% | Unchanged |
| Appian Way Asset Management LP | 7,165 | $716.7K | 0.17% | −8,007−52.8% | Reduced |
| Stifel Financial Corp | 7,178 | $718.0K | 0.00% | +5,183+259.8% | Added |
| British Columbia Investment Management Corp | 7,390 | $739.2K | 0.00% | −20.0% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 7,440 | $744.2K | 0.01% | +30.0% | Added |
| Advisors Asset Management, Inc. | 7,622 | $762.4K | 0.01% | +416+5.8% | Added |
| Thrivent Financial for Lutherans | 7,846 | $785.0K | 0.00% | −28−0.4% | Reduced |
| New York State Teachers Retirement System | 7,902 | $790.0K | 0.00% | −200−2.5% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 7,999 | $800.1K | 0.00% | +608+8.2% | Added |
| Creative Planning | 8,018 | $802.0K | 0.00% | +1,246+18.4% | Added |
| JustInvest LLC | 8,265 | $826.7K | 0.01% | +1,341+19.4% | Added |
| Handelsbanken Fonder AB | 8,600 | $860.0K | 0.00% | 00.0% | Unchanged |
| QRG Capital Management, Inc. | 8,680 | $868.2K | 0.01% | −1,588−15.5% | Reduced |
| SEI Investments Co | 8,691 | $869.3K | 0.00% | +864+11.0% | Added |
| Sterling Capital Management LLC | 8,742 | $874.5K | 0.01% | −752−7.9% | Reduced |