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, Q2 2025
Institutional positions in Westlake Corp as of Jun 30, 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
- 306
- −50 vs. Q1 2025
- Shares held
- 39.4M
- +3.00M (+8.3%) vs. Q1 2025
- Total value
- $2.99B
- −$644.8M (−17.7%) vs. Q1 2025
- New holders
- 46
- 125 more added
- Sold out
- 96
- 104 more reduced
5 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Victory Capital Management Inc | 3,721,742 | $282.6M | 0.18% | −178,283−4.6% | Reduced |
| Vanguard Group Inc | 3,522,810 | $267.5M | 0.00% | −27,500−0.8% | Reduced |
| BlackRock, Inc. | 3,328,696 | $252.7M | 0.00% | −331,710−9.1% | Reduced |
| Price T Rowe Associates Inc | 2,058,588 | $156.3M | 0.02% | +2,037,405+9,618.1% | Added |
| FMR LLC | 1,615,238 | $122.6M | 0.01% | +66,372+4.3% | Added |
| Brandes Investment Partners, LP | 1,456,871 | $110.6M | 1.00% | +1,035,851+246.0% | Added |
| State Street Corp | 1,392,227 | $105.7M | 0.00% | −237,879−14.6% | Reduced |
| Norges Bank | 1,373,816 | $104.3M | 0.01% | +1,004,941+272.4% | Added |
| Dimensional Fund Advisors LP | 1,275,169 | $96.8M | 0.02% | +335,500+35.7% | Added |
| Goldman Sachs Group Inc | 1,058,943 | $80.4M | 0.01% | +17,753+1.7% | Added |
| Jacobs Levy Equity Management, Inc | 985,258 | $74.8M | 0.29% | +209,457+27.0% | Added |
| Nuveen, LLC | 886,128 | $67.3M | 0.02% | +156,607+21.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 844,130 | $64.1M | 0.12% | −9,701−1.1% | Reduced |
| Antipodes Partners Ltd | 823,169 | $62.5M | 1.94% | +823,169 | New |
| Millennium Management LLC | 789,846 | $60.0M | 0.05% | −111,383−12.4% | Reduced |
| UBS Asset Management Americas Inc | 651,826 | $49.5M | 0.01% | +280,651+75.6% | Added |
| Geode Capital Management, LLC | 574,231 | $43.6M | 0.00% | −2,548−0.4% | Reduced |
| Allspring Global Investments Holdings, LLC | 520,737 | $41.9M | 0.07% | −31,029−5.6% | Reduced |
| Voloridge Investment Management, LLC | 520,256 | $39.5M | 0.15% | +173,286+49.9% | Added |
| Morgan Stanley | 462,488 | $35.1M | 0.00% | +199,932+76.1% | Added |
| UBS Group AG | 443,467 | $33.7M | 0.01% | −165,611−27.2% | Reduced |
| ProShare Advisors LLC | 355,154 | $27.0M | 0.05% | +94,831+36.4% | Added |
| Engineers Gate Manager LP | 351,011 | $26.7M | 0.33% | +348,274+12,724.7% | Added |
| D. E. Shaw & Co., Inc. | 342,960 | $26.0M | 0.03% | +114,603+50.2% | Added |
| Susquehanna International Group, LLP | 330,814 | $25.1M | 0.04% | +319,730+2,884.6% | Added |
| Woodline Partners LP | 327,290 | $24.9M | 0.13% | +327,290 | New |
| New York State Common Retirement Fund | 306,426 | $23.3M | 0.03% | +292,451+2,092.7% | Added |
| Arrowstreet Capital, Limited Partnership | 290,038 | $22.0M | 0.02% | +290,038 | New |
| Ilex Capital Partners (UK) LLP | 273,564 | $20.8M | 0.69% | −425,443−60.9% | Reduced |
| Charles Schwab Investment Management Inc | 256,845 | $19.5M | 0.00% | +12,348+5.1% | Added |
| Deprince Race & Zollo Inc | 253,370 | $19.2M | 0.40% | +22,882+9.9% | Added |
| Schroder Investment Management Group | 248,981 | $18.9M | 0.02% | −565−0.2% | Reduced |
| Alyeska Investment Group, L.P. | 238,128 | $18.1M | 0.06% | +45,252+23.5% | Added |
| Northern Trust Corp | 232,962 | $17.7M | 0.00% | −81,656−26.0% | Reduced |
| Bank of Montreal | 231,022 | $17.5M | 0.01% | +20,798+9.9% | Added |
| Royal Bank of Canada | 218,492 | $16.6M | 0.00% | +179,805+464.8% | Added |
| Janus Henderson Group PLC | 214,281 | $16.3M | 0.01% | −180,240−45.7% | Reduced |
| BNP Paribas Arbitrage, SA | 185,397 | $14.1M | 0.01% | +159,041+603.4% | Added |
| Bank of New York Mellon Corp | 184,312 | $14.0M | 0.00% | −35,367−16.1% | Reduced |
| Kempen Capital Management N.V. | 182,899 | $13.9M | 0.13% | +182,899 | New |
| Robotti Robert | 182,840 | $13.8M | 2.58% | +18,144+11.0% | Added |
| Erste Asset Management GmbH | 171,501 | $13.0M | 0.11% | +18,300+11.9% | Added |
| JPMorgan Chase & Co | 167,595 | $12.7M | 0.00% | +38,560+29.9% | Added |
| Two Sigma Advisers, LP | 158,500 | $12.0M | 0.02% | −7,600−4.6% | Reduced |
| Holocene Advisors, LP | 158,155 | $12.0M | 0.03% | +59,082+59.6% | Added |
| Renaissance Technologies LLC | 144,200 | $10.9M | 0.01% | −135,900−48.5% | Reduced |
| 1832 Asset Management L.P. | 138,920 | $10.5M | 0.02% | −14,820−9.6% | Reduced |
| Bank of America Corp | 138,654 | $10.5M | 0.00% | −82,789−37.4% | Reduced |
| Qube Research & Technologies Ltd | 134,571 | $10.2M | 0.01% | +18,771+16.2% | Added |
| Wedge Capital Management L L P | 132,401 | $10.1M | 0.18% | +37,763+39.9% | Added |
| AQR Capital Management LLC | 133,355 | $10.0M | 0.01% | +114,261+598.4% | Added |
| Russell Investments Group, Ltd. | 129,166 | $9.81M | 0.01% | +12,563+10.8% | Added |
| First Trust Advisors LP | 127,929 | $9.71M | 0.01% | −38,630−23.2% | Reduced |
| Sprott Inc. | 125,000 | $9.49M | 0.47% | +35,000+38.9% | Added |
| Invesco Ltd. | 124,564 | $9.46M | 0.00% | −9,816−7.3% | Reduced |
| Man Group plc | 124,176 | $9.43M | 0.02% | −16,715−11.9% | Reduced |
| Two Sigma Investments, LP | 122,115 | $9.27M | 0.02% | −143,956−54.1% | Reduced |
| HITE Hedge Asset Management LLC | 114,487 | $8.69M | 0.50% | +43,012+60.2% | Added |
| Walleye Capital LLC | 112,198 | $8.52M | 0.08% | +77,821+226.4% | Added |
| ING Groep NV | 111,400 | $8.46M | 0.05% | +81,800+276.4% | Added |
| Teachers Retirement System of the State of Kentucky | 105,015 | $7.97M | 0.06% | +93,300+796.4% | Added |
| Janney Montgomery Scott LLC | 100,968 | $7.67M | 0.02% | +39,834+65.2% | Added |
| Ameriprise Financial Inc | 99,534 | $7.56M | 0.00% | −19,389−16.3% | Reduced |
| Squarepoint Ops LLC | 94,483 | $7.17M | 0.02% | −137,575−59.3% | Reduced |
| Dark Forest Capital Management LP | 92,491 | $7.02M | 0.28% | +83,503+929.0% | Added |
| Rhumbline Advisers | 90,628 | $6.88M | 0.01% | −9,811−9.8% | Reduced |
| ExodusPoint Capital Management, LP | 90,578 | $6.88M | 0.08% | −327,182−78.3% | Reduced |
| Cerity Partners LLC | 86,793 | $6.59M | 0.01% | +11,865+15.8% | Added |
| Storebrand Asset Management AS | 86,152 | $6.54M | 0.02% | −20,593−19.3% | Reduced |
| Wells Fargo & Company | 85,434 | $6.49M | 0.00% | +24,228+39.6% | Added |
| Balyasny Asset Management LLC | 79,847 | $6.06M | 0.01% | −442,029−84.7% | Reduced |
| Principal Financial Group Inc | 75,606 | $5.74M | 0.00% | −1,390−1.8% | Reduced |
| Amundi | 69,671 | $5.70M | 0.00% | +18,901+37.2% | Added |
| Legal & General Group Plc | 75,079 | $5.70M | 0.00% | −69,916−48.2% | Reduced |
| Lazard Asset Management LLC | 74,072 | $5.62M | 0.01% | −37,441−33.6% | Reduced |
| Citigroup Inc | 72,626 | $5.51M | 0.00% | +44,374+157.1% | Added |
| Thomist Capital Management, LP | 71,600 | $5.45M | 3.29% | +25,500+55.3% | Added |
| Barclays PLC | 71,039 | $5.39M | 0.00% | −35,781−33.5% | Reduced |
| Alliancebernstein L.P. | 68,613 | $5.21M | 0.00% | +144+0.2% | Added |
| California Public Employees Retirement System | 59,872 | $4.55M | 0.00% | +1,042+1.8% | Added |
| SG Americas Securities, LLC | 54,505 | $4.14M | 0.02% | −3,055−5.3% | Reduced |
| JCP Investment Management, LLC | 53,000 | $4.02M | 2.32% | +53,000 | New |
| Concentric Capital Strategies, LP | 52,887 | $4.02M | 0.23% | +52,887 | New |
| Canada Pension Plan Investment Board | 49,344 | $3.75M | 0.00% | +9,980+25.4% | Added |
| KBC Group NV | 48,014 | $3.65M | 0.01% | +21,319+79.9% | Added |
| Journey Advisory Group, LLC | 44,842 | $3.40M | 0.26% | +44,842 | New |
| Verition Fund Management LLC | 41,923 | $3.18M | 0.02% | −9,588−18.6% | Reduced |
| Retirement Systems of Alabama | 40,751 | $3.09M | 0.01% | +22+0.1% | Added |
| Jane Street Group, LLC | 34,357 | $2.61M | 0.00% | −51,583−60.0% | Reduced |
| Comerica Bank | 34,333 | $2.61M | 0.01% | +3,695+12.1% | Added |
| Y-Intercept (Hong Kong) Ltd | 32,522 | $2.47M | 0.06% | +32,522 | New |
| Quantinno Capital Management LP | 30,231 | $2.30M | 0.01% | −97,282−76.3% | Reduced |
| Twin Tree Management, LP | 29,360 | $2.23M | 0.06% | +29,360 | New |
| Manufacturers Life Insurance Company, The | 28,134 | $2.14M | 0.00% | +165+0.6% | Added |
| State of Alaska, Department of Revenue | 27,678 | $2.10M | 0.02% | −180−0.6% | Reduced |
| Brevan Howard Capital Management LP | 26,812 | $2.04M | 0.02% | +10,605+65.4% | Added |
| State of Wisconsin Investment Board | 26,000 | $1.97M | 0.00% | +353+1.4% | Added |
| HSBC Holdings PLC | 25,833 | $1.96M | 0.00% | +15,193+142.8% | Added |
| Northeast Financial Consultants Inc | 24,800 | $1.88M | 0.08% | +24,800 | New |
| State Board of Administration of Florida Retirement System | 24,650 | $1.87M | 0.00% | −3,325−11.9% | Reduced |