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 |
|---|---|---|---|---|---|
| Envestnet Asset Management Inc | 20,396 | $1.55M | 0.00% | −6,139−23.1% | Reduced |
| Manning & Napier Advisors LLC | 20,684 | $1.57M | 0.02% | −5,487−21.0% | Reduced |
| LPL Financial LLC | 21,273 | $1.62M | 0.00% | −9,148−30.1% | Reduced |
| South Dakota Investment Council | 22,135 | $1.68M | 0.03% | 00.0% | Unchanged |
| Knights of Columbus Asset Advisors LLC | 22,364 | $1.70M | 0.10% | 00.0% | Unchanged |
| SEI Investments Co | 22,746 | $1.73M | 0.00% | +14,055+161.7% | Added |
| State Board of Administration of Florida Retirement System | 24,650 | $1.87M | 0.00% | −3,325−11.9% | Reduced |
| Northeast Financial Consultants Inc | 24,800 | $1.88M | 0.08% | +24,800 | New |
| HSBC Holdings PLC | 25,833 | $1.96M | 0.00% | +15,193+142.8% | Added |
| State of Wisconsin Investment Board | 26,000 | $1.97M | 0.00% | +353+1.4% | Added |
| Brevan Howard Capital Management LP | 26,812 | $2.04M | 0.02% | +10,605+65.4% | Added |
| State of Alaska, Department of Revenue | 27,678 | $2.10M | 0.02% | −180−0.6% | Reduced |
| Manufacturers Life Insurance Company, The | 28,134 | $2.14M | 0.00% | +165+0.6% | Added |
| Twin Tree Management, LP | 29,360 | $2.23M | 0.06% | +29,360 | New |
| Quantinno Capital Management LP | 30,231 | $2.30M | 0.01% | −97,282−76.3% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 32,522 | $2.47M | 0.06% | +32,522 | New |
| Comerica Bank | 34,333 | $2.61M | 0.01% | +3,695+12.1% | Added |
| Jane Street Group, LLC | 34,357 | $2.61M | 0.00% | −51,583−60.0% | Reduced |
| Retirement Systems of Alabama | 40,751 | $3.09M | 0.01% | +22+0.1% | Added |
| Verition Fund Management LLC | 41,923 | $3.18M | 0.02% | −9,588−18.6% | Reduced |
| Journey Advisory Group, LLC | 44,842 | $3.40M | 0.26% | +44,842 | New |
| KBC Group NV | 48,014 | $3.65M | 0.01% | +21,319+79.9% | Added |
| Canada Pension Plan Investment Board | 49,344 | $3.75M | 0.00% | +9,980+25.4% | Added |
| Concentric Capital Strategies, LP | 52,887 | $4.02M | 0.23% | +52,887 | New |
| JCP Investment Management, LLC | 53,000 | $4.02M | 2.32% | +53,000 | New |
| SG Americas Securities, LLC | 54,505 | $4.14M | 0.02% | −3,055−5.3% | Reduced |
| California Public Employees Retirement System | 59,872 | $4.55M | 0.00% | +1,042+1.8% | Added |
| Alliancebernstein L.P. | 68,613 | $5.21M | 0.00% | +144+0.2% | Added |
| Barclays PLC | 71,039 | $5.39M | 0.00% | −35,781−33.5% | Reduced |
| Thomist Capital Management, LP | 71,600 | $5.45M | 3.29% | +25,500+55.3% | Added |
| Citigroup Inc | 72,626 | $5.51M | 0.00% | +44,374+157.1% | Added |
| Lazard Asset Management LLC | 74,072 | $5.62M | 0.01% | −37,441−33.6% | Reduced |
| Legal & General Group Plc | 75,079 | $5.70M | 0.00% | −69,916−48.2% | Reduced |
| Amundi | 69,671 | $5.70M | 0.00% | +18,901+37.2% | Added |
| Principal Financial Group Inc | 75,606 | $5.74M | 0.00% | −1,390−1.8% | Reduced |
| Balyasny Asset Management LLC | 79,847 | $6.06M | 0.01% | −442,029−84.7% | Reduced |
| Wells Fargo & Company | 85,434 | $6.49M | 0.00% | +24,228+39.6% | Added |
| Storebrand Asset Management AS | 86,152 | $6.54M | 0.02% | −20,593−19.3% | Reduced |
| Cerity Partners LLC | 86,793 | $6.59M | 0.01% | +11,865+15.8% | Added |
| ExodusPoint Capital Management, LP | 90,578 | $6.88M | 0.08% | −327,182−78.3% | Reduced |
| Rhumbline Advisers | 90,628 | $6.88M | 0.01% | −9,811−9.8% | Reduced |
| Dark Forest Capital Management LP | 92,491 | $7.02M | 0.28% | +83,503+929.0% | Added |
| Squarepoint Ops LLC | 94,483 | $7.17M | 0.02% | −137,575−59.3% | Reduced |
| Ameriprise Financial Inc | 99,534 | $7.56M | 0.00% | −19,389−16.3% | Reduced |
| Janney Montgomery Scott LLC | 100,968 | $7.67M | 0.02% | +39,834+65.2% | Added |
| Teachers Retirement System of the State of Kentucky | 105,015 | $7.97M | 0.06% | +93,300+796.4% | Added |
| ING Groep NV | 111,400 | $8.46M | 0.05% | +81,800+276.4% | Added |
| Walleye Capital LLC | 112,198 | $8.52M | 0.08% | +77,821+226.4% | Added |
| HITE Hedge Asset Management LLC | 114,487 | $8.69M | 0.50% | +43,012+60.2% | Added |
| Two Sigma Investments, LP | 122,115 | $9.27M | 0.02% | −143,956−54.1% | Reduced |
| Man Group plc | 124,176 | $9.43M | 0.02% | −16,715−11.9% | Reduced |
| Invesco Ltd. | 124,564 | $9.46M | 0.00% | −9,816−7.3% | Reduced |
| Sprott Inc. | 125,000 | $9.49M | 0.47% | +35,000+38.9% | Added |
| First Trust Advisors LP | 127,929 | $9.71M | 0.01% | −38,630−23.2% | Reduced |
| Russell Investments Group, Ltd. | 129,166 | $9.81M | 0.01% | +12,563+10.8% | Added |
| AQR Capital Management LLC | 133,355 | $10.0M | 0.01% | +114,261+598.4% | Added |
| Wedge Capital Management L L P | 132,401 | $10.1M | 0.18% | +37,763+39.9% | Added |
| Qube Research & Technologies Ltd | 134,571 | $10.2M | 0.01% | +18,771+16.2% | Added |
| Bank of America Corp | 138,654 | $10.5M | 0.00% | −82,789−37.4% | Reduced |
| 1832 Asset Management L.P. | 138,920 | $10.5M | 0.02% | −14,820−9.6% | Reduced |
| Renaissance Technologies LLC | 144,200 | $10.9M | 0.01% | −135,900−48.5% | Reduced |
| Holocene Advisors, LP | 158,155 | $12.0M | 0.03% | +59,082+59.6% | Added |
| Two Sigma Advisers, LP | 158,500 | $12.0M | 0.02% | −7,600−4.6% | Reduced |
| JPMorgan Chase & Co | 167,595 | $12.7M | 0.00% | +38,560+29.9% | Added |
| Erste Asset Management GmbH | 171,501 | $13.0M | 0.11% | +18,300+11.9% | Added |
| Robotti Robert | 182,840 | $13.8M | 2.58% | +18,144+11.0% | Added |
| Kempen Capital Management N.V. | 182,899 | $13.9M | 0.13% | +182,899 | New |
| Bank of New York Mellon Corp | 184,312 | $14.0M | 0.00% | −35,367−16.1% | Reduced |
| BNP Paribas Arbitrage, SA | 185,397 | $14.1M | 0.01% | +159,041+603.4% | Added |
| Janus Henderson Group PLC | 214,281 | $16.3M | 0.01% | −180,240−45.7% | Reduced |
| Royal Bank of Canada | 218,492 | $16.6M | 0.00% | +179,805+464.8% | Added |
| Bank of Montreal | 231,022 | $17.5M | 0.01% | +20,798+9.9% | Added |
| Northern Trust Corp | 232,962 | $17.7M | 0.00% | −81,656−26.0% | Reduced |
| Alyeska Investment Group, L.P. | 238,128 | $18.1M | 0.06% | +45,252+23.5% | Added |
| Schroder Investment Management Group | 248,981 | $18.9M | 0.02% | −565−0.2% | Reduced |
| Deprince Race & Zollo Inc | 253,370 | $19.2M | 0.40% | +22,882+9.9% | Added |
| Charles Schwab Investment Management Inc | 256,845 | $19.5M | 0.00% | +12,348+5.1% | Added |
| Ilex Capital Partners (UK) LLP | 273,564 | $20.8M | 0.69% | −425,443−60.9% | Reduced |
| Arrowstreet Capital, Limited Partnership | 290,038 | $22.0M | 0.02% | +290,038 | New |
| New York State Common Retirement Fund | 306,426 | $23.3M | 0.03% | +292,451+2,092.7% | Added |
| Woodline Partners LP | 327,290 | $24.9M | 0.13% | +327,290 | New |
| Susquehanna International Group, LLP | 330,814 | $25.1M | 0.04% | +319,730+2,884.6% | Added |
| D. E. Shaw & Co., Inc. | 342,960 | $26.0M | 0.03% | +114,603+50.2% | Added |
| Engineers Gate Manager LP | 351,011 | $26.7M | 0.33% | +348,274+12,724.7% | Added |
| ProShare Advisors LLC | 355,154 | $27.0M | 0.05% | +94,831+36.4% | Added |
| UBS Group AG | 443,467 | $33.7M | 0.01% | −165,611−27.2% | Reduced |
| Morgan Stanley | 462,488 | $35.1M | 0.00% | +199,932+76.1% | Added |
| Voloridge Investment Management, LLC | 520,256 | $39.5M | 0.15% | +173,286+49.9% | Added |
| Allspring Global Investments Holdings, LLC | 520,737 | $41.9M | 0.07% | −31,029−5.6% | Reduced |
| Geode Capital Management, LLC | 574,231 | $43.6M | 0.00% | −2,548−0.4% | Reduced |
| UBS Asset Management Americas Inc | 651,826 | $49.5M | 0.01% | +280,651+75.6% | Added |
| Millennium Management LLC | 789,846 | $60.0M | 0.05% | −111,383−12.4% | Reduced |
| Antipodes Partners Ltd | 823,169 | $62.5M | 1.94% | +823,169 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 844,130 | $64.1M | 0.12% | −9,701−1.1% | Reduced |
| Nuveen, LLC | 886,128 | $67.3M | 0.02% | +156,607+21.5% | Added |
| Jacobs Levy Equity Management, Inc | 985,258 | $74.8M | 0.29% | +209,457+27.0% | Added |
| Goldman Sachs Group Inc | 1,058,943 | $80.4M | 0.01% | +17,753+1.7% | Added |
| Dimensional Fund Advisors LP | 1,275,169 | $96.8M | 0.02% | +335,500+35.7% | Added |
| Norges Bank | 1,373,816 | $104.3M | 0.01% | +1,004,941+272.4% | Added |
| State Street Corp | 1,392,227 | $105.7M | 0.00% | −237,879−14.6% | Reduced |