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 |
|---|---|---|---|---|---|
| Victory Capital Management Inc | 4,069,322 | $395.3M | 0.36% | −139,350−3.3% | Reduced |
| Vanguard Group Inc | 4,053,446 | $393.7M | 0.01% | +129,667+3.3% | Added |
| Dimensional Fund Advisors LP | 2,280,323 | $221.5M | 0.07% | −29,579−1.3% | Reduced |
| BlackRock Inc. | 1,719,781 | $167.0M | 0.00% | +62,328+3.8% | Added |
| Price T Rowe Associates Inc | 1,237,040 | $120.2M | 0.01% | −1,341−0.1% | Reduced |
| Soroban Capital Partners LP | 1,189,109 | $115.5M | 0.90% | +1,189,109 | New |
| FMR LLC | 1,110,808 | $107.9M | 0.01% | +366,045+49.1% | Added |
| Prudential Financial Inc | 1,001,292 | $97.3M | 0.12% | +434,590+76.7% | Added |
| Acadian Asset Management LLC | 964,859 | $93.7M | 0.35% | +308,896+47.1% | Added |
| Goldman Sachs Group Inc | 950,431 | $92.3M | 0.02% | −48,992−4.9% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 766,261 | $74.4M | 0.16% | +124,587+19.4% | Added |
| Federated Hermes, Inc. | 709,137 | $68.9M | 0.13% | +314,870+79.9% | Added |
| Morgan Stanley | 659,242 | $64.0M | 0.01% | +131,553+24.9% | Added |
| Fort Pitt Capital Group, LLC | 611,955 | $59.4M | 2.15% | −9,092−1.5% | Reduced |
| State Street Corp | 522,422 | $50.7M | 0.00% | +4,970+1.0% | Added |
| AQR Capital Management LLC | 514,583 | $50.0M | 0.09% | +23,983+4.9% | Added |
| Janus Henderson Group PLC | 456,851 | $44.4M | 0.02% | −113,736−19.9% | Reduced |
| Allspring Global Investments Holdings, LLC | 417,030 | $40.5M | 0.05% | +417,030 | New |
| Geode Capital Management, LLC | 411,552 | $40.0M | 0.00% | +12,682+3.2% | Added |
| Lazard Asset Management LLC | 356,187 | $34.6M | 0.04% | +353,151+11,632.1% | Added |
| Bank of America Corp | 354,481 | $34.4M | 0.00% | +230,781+186.6% | Added |
| Norges Bank | 332,834 | $32.3M | 0.01% | −1,743−0.5% | Reduced |
| Jacobs Levy Equity Management, Inc | 323,124 | $31.4M | 0.21% | −63,984−16.5% | Reduced |
| Deutsche Bank AG | 314,981 | $30.6M | 0.01% | +311,163+8,149.9% | Added |
| Charles Schwab Investment Management Inc | 297,734 | $28.9M | 0.01% | +8,545+3.0% | Added |
| First Trust Advisors LP | 277,679 | $27.0M | 0.03% | +26,219+10.4% | Added |
| Wells Fargo & Company | 265,598 | $25.8M | 0.01% | −251,473−48.6% | Reduced |
| Scout Investments, Inc. | 264,326 | $25.7M | 0.37% | +81,745+44.8% | Added |
| Schonfeld Strategic Advisors LLC | 250,812 | $24.4M | 0.24% | +50,271+25.1% | Added |
| Virginia Retirement Systems Et Al | 249,800 | $24.3M | 0.22% | −1,700−0.7% | Reduced |
| Scopus Asset Management, L.P. | 241,750 | $23.5M | 0.69% | +11,750+5.1% | Added |
| Bank of New York Mellon Corp | 233,169 | $22.6M | 0.00% | −74,477−24.2% | Reduced |
| UBS Oconnor LLC | 209,346 | $20.3M | 0.20% | +43,815+26.5% | Added |
| Adage Capital Partners GP, L.L.C. | 200,000 | $19.4M | 0.03% | +200,000 | New |
| Citadel Advisors LLC | 194,891 | $18.9M | 0.02% | −413,202−68.0% | Reduced |
| Wellington Management Group LLP | 186,081 | $18.1M | 0.00% | +153,250+466.8% | Added |
| Renaissance Technologies LLC | 181,000 | $17.6M | 0.02% | +70,000+63.1% | Added |
| Northern Trust Corp | 178,399 | $17.3M | 0.00% | +14,346+8.7% | Added |
| Smith Group Asset Management, LLC | 164,339 | $16.0M | 0.73% | +164,229+149,299.1% | Added |
| Nuveen Asset Management, LLC | 175,348 | $15.9M | 0.00% | −2,708−1.5% | Reduced |
| Parametric Portfolio Associates LLC | 151,762 | $14.7M | 0.01% | +1,460+1.0% | Added |
| Guggenheim Capital LLC | 148,781 | $14.5M | 0.08% | +12,378+9.1% | Added |
| Millennium Management LLC | 140,793 | $13.7M | 0.02% | −1,150,643−89.1% | Reduced |
| Brandes Investment Partners, LP | 138,795 | $13.5M | 0.29% | +3,648+2.7% | Added |
| Legal & General Group Plc | 136,932 | $13.3M | 0.00% | −501−0.4% | Reduced |
| Glenmede Trust Co NA | 136,749 | $13.3M | 0.06% | +136,749 | New |
| Erste Asset Management GmbH | 134,000 | $13.0M | 0.23% | 00.0% | Unchanged |
| Robotti Robert | 131,949 | $12.8M | 2.60% | −99,021−42.9% | Reduced |
| Cubist Systematic Strategies, LLC | 123,177 | $12.0M | 0.11% | +74,331+152.2% | Added |
| Ameriprise Financial Inc | 120,691 | $11.7M | 0.00% | −6,887−5.4% | Reduced |
| Sprott Inc. | 120,000 | $11.7M | 0.84% | +5,000+4.3% | Added |
| Macquarie Group Ltd | 112,152 | $10.9M | 0.01% | +110,730+7,786.9% | Added |
| Pacer Advisors, Inc. | 103,265 | $10.0M | 0.10% | +37,067+56.0% | Added |
| BNP Paribas Arbitrage, SA | 95,041 | $9.23M | 0.02% | +75,185+378.7% | Added |
| Barclays PLC | 92,596 | $8.99M | 0.01% | +19,245+26.2% | Added |
| ExodusPoint Capital Management, LP | 92,379 | $8.97M | 0.11% | −18,033−16.3% | Reduced |
| Wedge Capital Management L L P | 92,202 | $8.96M | 0.11% | −9,616−9.4% | Reduced |
| Invesco Ltd. | 86,637 | $8.41M | 0.00% | +10,482+13.8% | Added |
| Swiss National Bank | 84,700 | $8.23M | 0.00% | −300−0.4% | Reduced |
| Schroder Investment Management Group | 83,690 | $8.13M | 0.01% | −15,363−15.5% | Reduced |
| Thrivent Financial for Lutherans | 83,498 | $8.11M | 0.02% | +83,498 | New |
| Russell Investments Group, Ltd. | 81,790 | $7.94M | 0.01% | +11,797+16.9% | Added |
| Sandler Capital Management | 80,000 | $7.77M | 0.98% | +80,000 | New |
| Price Michael F | 77,000 | $7.48M | 0.83% | 00.0% | Unchanged |
| Winmill & Co. Inc | 74,000 | $7.19M | 2.07% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 73,760 | $7.16M | 0.00% | −407,925−84.7% | Reduced |
| Arrowstreet Capital, Limited Partnership | 73,730 | $7.16M | 0.01% | −26,070−26.1% | Reduced |
| Squarepoint Ops LLC | 73,499 | $7.14M | 0.03% | +4,534+6.6% | Added |
| Moore Capital Management, LP | 69,484 | $6.75M | 0.17% | −42,336−37.9% | Reduced |
| Verition Fund Management LLC | 68,325 | $6.64M | 0.08% | +44,680+189.0% | Added |
| Qube Research & Technologies Ltd | 67,153 | $6.52M | 0.05% | +67,153 | New |
| Contravisory Investment Management, Inc. | 66,843 | $6.49M | 1.75% | +1,160+1.8% | Added |
| Panagora Asset Management Inc | 63,907 | $6.21M | 0.03% | −23,122−26.6% | Reduced |
| Citigroup Inc | 63,810 | $6.20M | 0.01% | −3,703−5.5% | Reduced |
| SEI Investments Co | 62,896 | $6.11M | 0.01% | +9,471+17.7% | Added |
| Tudor Investment Corp Et Al | 62,537 | $6.07M | 0.12% | +62,537 | New |
| UBS Asset Management Americas Inc | 60,332 | $5.86M | 0.00% | −61,932−50.7% | Reduced |
| Royal Bank of Canada | 56,058 | $5.45M | 0.00% | +615+1.1% | Added |
| Alyeska Investment Group, L.P. | 55,000 | $5.34M | 0.06% | +55,000 | New |
| Empowered Funds, LLC | 52,042 | $5.05M | 0.57% | −339−0.6% | Reduced |
| Alliancebernstein L.P. | 51,654 | $5.02M | 0.00% | −12,652−19.7% | Reduced |
| California State Teachers Retirement System | 50,728 | $4.93M | 0.01% | −9,536−15.8% | Reduced |
| Ambassador Advisors, LLC | 47,397 | $4.60M | 0.88% | +47,397 | New |
| Distillate Capital Partners LLC | 45,458 | $4.42M | 0.74% | +12,550+38.1% | Added |
| Vident Investment Advisory, LLC | 44,842 | $4.36M | 0.11% | +11,934+36.3% | Added |
| Smith, Graham & Co., Investment Advisors, LP | 43,256 | $4.20M | 0.42% | −634−1.4% | Reduced |
| State of Tennessee, Treasury Department | 42,576 | $4.13M | 0.02% | 00.0% | Unchanged |
| Amundi | 37,985 | $3.99M | 0.00% | −392−1.0% | Reduced |
| STRS Ohio | 40,611 | $3.94M | 0.01% | +3,440+9.3% | Added |
| State Board of Administration of Florida Retirement System | 39,969 | $3.88M | 0.01% | −1,173−2.9% | Reduced |
| New York State Common Retirement Fund | 39,890 | $3.88M | 0.00% | +3,666+10.1% | Added |
| HSBC Holdings PLC | 39,605 | $3.85M | 0.00% | +24,777+167.1% | Added |
| Zacks Investment Management | 38,075 | $3.70M | 0.05% | +954+2.6% | Added |
| ClariVest Asset Management LLC | 36,109 | $3.51M | 0.11% | −3,591−9.0% | Reduced |
| Sandbar Asset Management LLP | 36,049 | $3.50M | 1.75% | −165,697−82.1% | Reduced |
| Pinebridge Investments, L.P. | 35,634 | $3.46M | 0.04% | −796−2.2% | Reduced |
| Credit Suisse AG | 34,137 | $3.32M | 0.00% | −7,236−17.5% | Reduced |
| Royal London Asset Management Ltd | 32,835 | $3.19M | 0.01% | +2,686+8.9% | Added |
| AXA S.A. | 32,500 | $3.16M | 0.01% | −11,200−25.6% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 32,445 | $3.15M | 0.02% | +23,306+255.0% | Added |