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 2021
Institutional positions in Westlake Corp as of Dec 31, 2021. 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
- 298
- +30 vs. Q3 2021
- Shares held
- 34.7M
- +469.2K (+1.4%) vs. Q3 2021
- Total value
- $3.37B
- +$246.2M (+7.9%) vs. Q3 2021
- New holders
- 67
- 93 more added
- Sold out
- 37
- 97 more reduced
4 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2021: 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 2021
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal London Asset Management Ltd | 32,835 | $3.19M | 0.01% | +2,686+8.9% | Added |
| Credit Suisse AG | 34,137 | $3.32M | 0.00% | −7,236−17.5% | Reduced |
| Pinebridge Investments, L.P. | 35,634 | $3.46M | 0.04% | −796−2.2% | Reduced |
| Sandbar Asset Management LLP | 36,049 | $3.50M | 1.75% | −165,697−82.1% | Reduced |
| ClariVest Asset Management LLC | 36,109 | $3.51M | 0.11% | −3,591−9.0% | Reduced |
| Zacks Investment Management | 38,075 | $3.70M | 0.05% | +954+2.6% | Added |
| HSBC Holdings PLC | 39,605 | $3.85M | 0.00% | +24,777+167.1% | Added |
| New York State Common Retirement Fund | 39,890 | $3.88M | 0.00% | +3,666+10.1% | Added |
| State Board of Administration of Florida Retirement System | 39,969 | $3.88M | 0.01% | −1,173−2.9% | Reduced |
| STRS Ohio | 40,611 | $3.94M | 0.01% | +3,440+9.3% | Added |
| Amundi | 37,985 | $3.99M | 0.00% | −392−1.0% | Reduced |
| State of Tennessee, Treasury Department | 42,576 | $4.13M | 0.02% | 00.0% | Unchanged |
| Smith, Graham & Co., Investment Advisors, LP | 43,256 | $4.20M | 0.42% | −634−1.4% | Reduced |
| Vident Investment Advisory, LLC | 44,842 | $4.36M | 0.11% | +11,934+36.3% | Added |
| Distillate Capital Partners LLC | 45,458 | $4.42M | 0.74% | +12,550+38.1% | Added |
| Ambassador Advisors, LLC | 47,397 | $4.60M | 0.88% | +47,397 | New |
| California State Teachers Retirement System | 50,728 | $4.93M | 0.01% | −9,536−15.8% | Reduced |
| Alliancebernstein L.P. | 51,654 | $5.02M | 0.00% | −12,652−19.7% | Reduced |
| Empowered Funds, LLC | 52,042 | $5.05M | 0.57% | −339−0.6% | Reduced |
| Alyeska Investment Group, L.P. | 55,000 | $5.34M | 0.06% | +55,000 | New |
| Royal Bank of Canada | 56,058 | $5.45M | 0.00% | +615+1.1% | Added |
| UBS Asset Management Americas Inc | 60,332 | $5.86M | 0.00% | −61,932−50.7% | Reduced |
| Tudor Investment Corp Et Al | 62,537 | $6.07M | 0.12% | +62,537 | New |
| SEI Investments Co | 62,896 | $6.11M | 0.01% | +9,471+17.7% | Added |
| Citigroup Inc | 63,810 | $6.20M | 0.01% | −3,703−5.5% | Reduced |
| Panagora Asset Management Inc | 63,907 | $6.21M | 0.03% | −23,122−26.6% | Reduced |
| Contravisory Investment Management, Inc. | 66,843 | $6.49M | 1.75% | +1,160+1.8% | Added |
| Qube Research & Technologies Ltd | 67,153 | $6.52M | 0.05% | +67,153 | New |
| Verition Fund Management LLC | 68,325 | $6.64M | 0.08% | +44,680+189.0% | Added |
| Moore Capital Management, LP | 69,484 | $6.75M | 0.17% | −42,336−37.9% | Reduced |
| Squarepoint Ops LLC | 73,499 | $7.14M | 0.03% | +4,534+6.6% | Added |
| Arrowstreet Capital, Limited Partnership | 73,730 | $7.16M | 0.01% | −26,070−26.1% | Reduced |
| JPMorgan Chase & Co | 73,760 | $7.16M | 0.00% | −407,925−84.7% | Reduced |
| Winmill & Co. Inc | 74,000 | $7.19M | 2.07% | 00.0% | Unchanged |
| Price Michael F | 77,000 | $7.48M | 0.83% | 00.0% | Unchanged |
| Sandler Capital Management | 80,000 | $7.77M | 0.98% | +80,000 | New |
| Russell Investments Group, Ltd. | 81,790 | $7.94M | 0.01% | +11,797+16.9% | Added |
| Thrivent Financial for Lutherans | 83,498 | $8.11M | 0.02% | +83,498 | New |
| Schroder Investment Management Group | 83,690 | $8.13M | 0.01% | −15,363−15.5% | Reduced |
| Swiss National Bank | 84,700 | $8.23M | 0.00% | −300−0.4% | Reduced |
| Invesco Ltd. | 86,637 | $8.41M | 0.00% | +10,482+13.8% | Added |
| Wedge Capital Management L L P | 92,202 | $8.96M | 0.11% | −9,616−9.4% | Reduced |
| ExodusPoint Capital Management, LP | 92,379 | $8.97M | 0.11% | −18,033−16.3% | Reduced |
| Barclays PLC | 92,596 | $8.99M | 0.01% | +19,245+26.2% | Added |
| BNP Paribas Arbitrage, SA | 95,041 | $9.23M | 0.02% | +75,185+378.7% | Added |
| Pacer Advisors, Inc. | 103,265 | $10.0M | 0.10% | +37,067+56.0% | Added |
| Macquarie Group Ltd | 112,152 | $10.9M | 0.01% | +110,730+7,786.9% | Added |
| Sprott Inc. | 120,000 | $11.7M | 0.84% | +5,000+4.3% | Added |
| Ameriprise Financial Inc | 120,691 | $11.7M | 0.00% | −6,887−5.4% | Reduced |
| Cubist Systematic Strategies, LLC | 123,177 | $12.0M | 0.11% | +74,331+152.2% | Added |
| Robotti Robert | 131,949 | $12.8M | 2.60% | −99,021−42.9% | Reduced |
| Erste Asset Management GmbH | 134,000 | $13.0M | 0.23% | 00.0% | Unchanged |
| Glenmede Trust Co NA | 136,749 | $13.3M | 0.06% | +136,749 | New |
| Legal & General Group Plc | 136,932 | $13.3M | 0.00% | −501−0.4% | Reduced |
| Brandes Investment Partners, LP | 138,795 | $13.5M | 0.29% | +3,648+2.7% | Added |
| Millennium Management LLC | 140,793 | $13.7M | 0.02% | −1,150,643−89.1% | Reduced |
| Guggenheim Capital LLC | 148,781 | $14.5M | 0.08% | +12,378+9.1% | Added |
| Parametric Portfolio Associates LLC | 151,762 | $14.7M | 0.01% | +1,460+1.0% | Added |
| Nuveen Asset Management, LLC | 175,348 | $15.9M | 0.00% | −2,708−1.5% | Reduced |
| Smith Group Asset Management, LLC | 164,339 | $16.0M | 0.73% | +164,229+149,299.1% | Added |
| Northern Trust Corp | 178,399 | $17.3M | 0.00% | +14,346+8.7% | Added |
| Renaissance Technologies LLC | 181,000 | $17.6M | 0.02% | +70,000+63.1% | Added |
| Wellington Management Group LLP | 186,081 | $18.1M | 0.00% | +153,250+466.8% | Added |
| Citadel Advisors LLC | 194,891 | $18.9M | 0.02% | −413,202−68.0% | Reduced |
| Adage Capital Partners GP, L.L.C. | 200,000 | $19.4M | 0.03% | +200,000 | New |
| UBS Oconnor LLC | 209,346 | $20.3M | 0.20% | +43,815+26.5% | Added |
| Bank of New York Mellon Corp | 233,169 | $22.6M | 0.00% | −74,477−24.2% | Reduced |
| Scopus Asset Management, L.P. | 241,750 | $23.5M | 0.69% | +11,750+5.1% | Added |
| Virginia Retirement Systems Et Al | 249,800 | $24.3M | 0.22% | −1,700−0.7% | Reduced |
| Schonfeld Strategic Advisors LLC | 250,812 | $24.4M | 0.24% | +50,271+25.1% | Added |
| Scout Investments, Inc. | 264,326 | $25.7M | 0.37% | +81,745+44.8% | Added |
| Wells Fargo & Company | 265,598 | $25.8M | 0.01% | −251,473−48.6% | Reduced |
| First Trust Advisors LP | 277,679 | $27.0M | 0.03% | +26,219+10.4% | Added |
| Charles Schwab Investment Management Inc | 297,734 | $28.9M | 0.01% | +8,545+3.0% | Added |
| Deutsche Bank AG | 314,981 | $30.6M | 0.01% | +311,163+8,149.9% | Added |
| Jacobs Levy Equity Management, Inc | 323,124 | $31.4M | 0.21% | −63,984−16.5% | Reduced |
| Norges Bank | 332,834 | $32.3M | 0.01% | −1,743−0.5% | Reduced |
| Bank of America Corp | 354,481 | $34.4M | 0.00% | +230,781+186.6% | Added |
| Lazard Asset Management LLC | 356,187 | $34.6M | 0.04% | +353,151+11,632.1% | Added |
| Geode Capital Management, LLC | 411,552 | $40.0M | 0.00% | +12,682+3.2% | Added |
| Allspring Global Investments Holdings, LLC | 417,030 | $40.5M | 0.05% | +417,030 | New |
| Janus Henderson Group PLC | 456,851 | $44.4M | 0.02% | −113,736−19.9% | Reduced |
| AQR Capital Management LLC | 514,583 | $50.0M | 0.09% | +23,983+4.9% | Added |
| State Street Corp | 522,422 | $50.7M | 0.00% | +4,970+1.0% | Added |
| Fort Pitt Capital Group, LLC | 611,955 | $59.4M | 2.15% | −9,092−1.5% | Reduced |
| Morgan Stanley | 659,242 | $64.0M | 0.01% | +131,553+24.9% | Added |
| Federated Hermes, Inc. | 709,137 | $68.9M | 0.13% | +314,870+79.9% | Added |
| Mirae Asset Global Investments Co., Ltd. | 766,261 | $74.4M | 0.16% | +124,587+19.4% | Added |
| Goldman Sachs Group Inc | 950,431 | $92.3M | 0.02% | −48,992−4.9% | Reduced |
| Acadian Asset Management LLC | 964,859 | $93.7M | 0.35% | +308,896+47.1% | Added |
| Prudential Financial Inc | 1,001,292 | $97.3M | 0.12% | +434,590+76.7% | Added |
| FMR LLC | 1,110,808 | $107.9M | 0.01% | +366,045+49.1% | Added |
| Soroban Capital Partners LP | 1,189,109 | $115.5M | 0.90% | +1,189,109 | New |
| Price T Rowe Associates Inc | 1,237,040 | $120.2M | 0.01% | −1,341−0.1% | Reduced |
| BlackRock Inc. | 1,719,781 | $167.0M | 0.00% | +62,328+3.8% | Added |
| Dimensional Fund Advisors LP | 2,280,323 | $221.5M | 0.07% | −29,579−1.3% | Reduced |
| Vanguard Group Inc | 4,053,446 | $393.7M | 0.01% | +129,667+3.3% | Added |
| Victory Capital Management Inc | 4,069,322 | $395.3M | 0.36% | −139,350−3.3% | Reduced |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −561,231−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −98,988−100.0% | Sold out |