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 2022
Institutional positions in Westlake Corp as of Dec 31, 2022. 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
- 344
- +32 vs. Q3 2022
- Shares held
- 36.4M
- +1.54M (+4.4%) vs. Q3 2022
- Total value
- $3.73B
- +$703.7M (+23.2%) vs. Q3 2022
- New holders
- 74
- 105 more added
- Sold out
- 42
- 118 more reduced
9 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2022
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| UBS Asset Management Americas Inc | 121,499 | $12.5M | 0.01% | +60,410+98.9% | Added |
| Virginia Retirement Systems Et Al | 122,300 | $12.5M | 0.13% | −50,800−29.3% | Reduced |
| JPMorgan Chase & Co | 126,044 | $12.9M | 0.00% | +6,736+5.6% | Added |
| Wells Fargo & Company | 127,263 | $13.0M | 0.00% | −52,775−29.3% | Reduced |
| Ameriprise Financial Inc | 130,636 | $13.4M | 0.00% | +38,762+42.2% | Added |
| Man Group plc | 130,688 | $13.4M | 0.05% | −9,380−6.7% | Reduced |
| Principal Financial Group Inc | 134,908 | $13.8M | 0.01% | +131,255+3,593.1% | Added |
| Verition Fund Management LLC | 140,267 | $14.4M | 0.28% | −97,520−41.0% | Reduced |
| Erste Asset Management GmbH | 144,033 | $14.8M | 0.31% | +21,300+17.4% | Added |
| Scout Investments, Inc. | 144,866 | $14.9M | 0.30% | −12,335−7.8% | Reduced |
| Guggenheim Capital LLC | 147,396 | $15.1M | 0.13% | +9,262+6.7% | Added |
| Appian Way Asset Management LP | 148,700 | $15.2M | 5.73% | +148,700 | New |
| Point72 Asset Management, L.P. | 152,699 | $15.7M | 0.06% | +152,699 | New |
| Storebrand Asset Management AS | 152,961 | $15.7M | 0.09% | +36,032+30.8% | Added |
| Swiss National Bank | 155,700 | $16.0M | 0.01% | −10,800−6.5% | Reduced |
| Janus Henderson Group PLC | 227,575 | $23.3M | 0.02% | −72,048−24.0% | Reduced |
| Legal & General Group Plc | 228,721 | $23.5M | 0.01% | +23,505+11.5% | Added |
| Robotti Robert | 229,267 | $23.5M | 4.69% | −699−0.3% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 243,800 | $25.0M | 0.13% | +119,100+95.5% | Added |
| Federated Hermes, Inc. | 256,532 | $26.3M | 0.07% | −297,487−53.7% | Reduced |
| Invesco Ltd. | 263,850 | $27.1M | 0.01% | +161,657+158.2% | Added |
| Northern Trust Corp | 307,537 | $31.5M | 0.01% | +98,463+47.1% | Added |
| Norges Bank | 309,334 | $31.7M | 0.01% | −7,433−2.3% | Reduced |
| Morgan Stanley | 319,975 | $32.8M | 0.00% | −276,212−46.3% | Reduced |
| Charles Schwab Investment Management Inc | 337,942 | $34.7M | 0.01% | +3,321+1.0% | Added |
| Citadel Advisors LLC | 355,081 | $36.4M | 0.04% | +324,496+1,061.0% | Added |
| Allspring Global Investments Holdings, LLC | 365,948 | $37.5M | 0.06% | −61,895−14.5% | Reduced |
| Bank of New York Mellon Corp | 433,329 | $44.4M | 0.01% | +168,008+63.3% | Added |
| Geode Capital Management, LLC | 451,000 | $46.2M | 0.01% | +14,623+3.4% | Added |
| Bank of America Corp | 498,417 | $51.1M | 0.01% | −468,790−48.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 520,109 | $53.3M | 0.14% | −16,607−3.1% | Reduced |
| AQR Capital Management LLC | 559,268 | $57.1M | 0.13% | −101,995−15.4% | Reduced |
| Nuveen Asset Management, LLC | 629,020 | $64.5M | 0.03% | +5,783+0.9% | Added |
| Goldman Sachs Group Inc | 837,405 | $85.9M | 0.02% | +35,722+4.5% | Added |
| First Trust Advisors LP | 960,738 | $98.5M | 0.12% | +138,910+16.9% | Added |
| Pacer Advisors, Inc. | 1,012,486 | $103.8M | 0.53% | +342,204+51.1% | Added |
| State Street Corp | 1,125,020 | $115.4M | 0.01% | +379,282+50.9% | Added |
| Dimensional Fund Advisors LP | 1,708,835 | $175.2M | 0.06% | −429,533−20.1% | Reduced |
| Orbis Allan Gray Ltd | 1,956,250 | $200.6M | 1.59% | +1,956,250 | New |
| Soroban Capital Partners LP | 2,021,674 | $207.3M | 2.49% | 00.0% | Unchanged |
| Victory Capital Management Inc | 3,239,670 | $332.2M | 0.38% | +221,020+7.3% | Added |
| Vanguard Group Inc | 3,456,522 | $354.4M | 0.01% | +113,647+3.4% | Added |
| FMR LLC | 3,594,663 | $368.6M | 0.04% | +25,778+0.7% | Added |
| BlackRock Inc. | 3,594,860 | $368.6M | 0.01% | +1,373,077+61.8% | Added |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −654,871−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −253,380−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −146,956−100.0% | Sold out |
| Glenmede Trust Co NA | 0 | $0 | 0.00% | −127,043−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −90,329−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −77,500−100.0% | Sold out |
| Worldquant Millennium Advisors LLC | 0 | $0 | 0.00% | −59,962−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −59,369−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −31,797−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −29,350−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −28,076−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −26,572−100.0% | Sold out |
| AlphaCrest Capital Management LLC | 0 | $0 | 0.00% | −23,596−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −17,700−100.0% | Sold out |
| ClariVest Asset Management LLC | 0 | $0 | 0.00% | −16,062−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −15,875−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −15,236−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −11,800−100.0% | Sold out |
| Centaurus Financial, Inc. | 0 | $0 | 0.00% | −9,731−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −9,503−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −5,582−100.0% | Sold out |
| Robeco Institutional Asset Management B.V. | 0 | $0 | 0.00% | −5,576−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −5,050−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −4,500−100.0% | Sold out |
| NinePointTwo Capital | 0 | $0 | 0.00% | −3,458−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −3,347−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −3,342−100.0% | Sold out |
| Diversified Trust Co | 0 | $0 | 0.00% | −3,024−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −2,707−100.0% | Sold out |
| Forsta Ap-Fonden | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −1,268−100.0% | Sold out |
| Globeflex Capital L P | 0 | $0 | 0.00% | −1,003−100.0% | Sold out |
| Leonteq Securities AG | 0 | $0 | 0.00% | −997−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −975−100.0% | Sold out |
| Huntington National Bank | 0 | $0 | 0.00% | −260−100.0% | Sold out |
| Fred Alger Management, LLC | 0 | $0 | 0.00% | −158−100.0% | Sold out |
| Silver Oak Securities, Inc | 0 | $0 | 0.00% | −102−100.0% | Sold out |
| Riverview Trust Co | 0 | $0 | 0.00% | −129−100.0% | Sold out |
| Carmichael Hill & Associates, Inc. | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −57−100.0% | Sold out |
| Plante Moran Financial Advisors, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Allworth Financial LP | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Wilen Investment Management Corp. | – | – | – | – | Not filed |
| Agf Investments Inc. | – | – | – | – | Not filed |
| Bowling Portfolio Management LLC | – | – | – | – | Not filed |
| Regentatlantic Capital LLC | – | – | – | – | Not filed |
| Roosevelt Investment Group LLC | – | – | – | – | Not filed |
| Wipfli Financial Advisors LLC, | – | – | – | – | Not filed |
| FourThought Financial, LLC | – | – | – | – | Not filed |
| American Portfolios Advisors | – | – | – | – | Not filed |
| Covington Capital Management | – | – | – | – | Not filed |