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, Q1 2023
Institutional positions in Westlake Corp as of Mar 31, 2023. 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
- 342
- +6 vs. Q4 2022
- Shares held
- 38.3M
- +1.96M (+5.4%) vs. Q4 2022
- Total value
- $4.40B
- +$671.8M (+18.0%) vs. Q4 2022
- New holders
- 49
- 108 more added
- Sold out
- 43
- 123 more reduced
8 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2023
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 4,224,641 | $490.0M | 0.04% | +629,978+17.5% | Added |
| BlackRock Inc. | 3,566,918 | $413.7M | 0.01% | −27,942−0.8% | Reduced |
| Vanguard Group Inc | 3,461,752 | $401.5M | 0.01% | +5,230+0.2% | Added |
| Victory Capital Management Inc | 3,320,729 | $385.1M | 0.43% | +81,059+2.5% | Added |
| Orbis Allan Gray Ltd | 2,061,900 | $239.1M | 1.88% | +105,650+5.4% | Added |
| Dimensional Fund Advisors LP | 1,470,450 | $170.5M | 0.06% | −238,385−14.0% | Reduced |
| Soroban Capital Partners LP | 1,352,861 | $156.9M | 2.15% | −668,813−33.1% | Reduced |
| Citadel Advisors LLC | 1,226,376 | $142.2M | 0.16% | +871,295+245.4% | Added |
| Pacer Advisors, Inc. | 1,187,394 | $137.7M | 0.59% | +174,908+17.3% | Added |
| State Street Corp | 1,144,072 | $132.7M | 0.01% | +19,052+1.7% | Added |
| First Trust Advisors LP | 1,025,242 | $118.9M | 0.14% | +64,504+6.7% | Added |
| Goldman Sachs Group Inc | 737,441 | $85.5M | 0.02% | −99,964−11.9% | Reduced |
| Balyasny Asset Management LLC | 610,892 | $70.9M | 0.23% | +493,432+420.1% | Added |
| Mirae Asset Global Investments Co., Ltd. | 568,575 | $65.9M | 0.15% | +48,466+9.3% | Added |
| Nuveen Asset Management, LLC | 550,659 | $63.9M | 0.02% | −78,361−12.5% | Reduced |
| Federated Hermes, Inc. | 477,323 | $55.4M | 0.14% | +220,791+86.1% | Added |
| Geode Capital Management, LLC | 470,466 | $54.5M | 0.01% | +19,466+4.3% | Added |
| AQR Capital Management LLC | 469,482 | $53.6M | 0.12% | −89,786−16.1% | Reduced |
| Bank of New York Mellon Corp | 416,392 | $48.3M | 0.01% | −16,937−3.9% | Reduced |
| Charles Schwab Investment Management Inc | 344,800 | $40.0M | 0.01% | +6,858+2.0% | Added |
| Allspring Global Investments Holdings, LLC | 343,683 | $39.9M | 0.07% | −22,265−6.1% | Reduced |
| Norges Bank | 332,282 | $38.5M | 0.01% | +22,948+7.4% | Added |
| Morgan Stanley | 331,898 | $38.5M | 0.00% | +11,923+3.7% | Added |
| ProShare Advisors LLC | 312,639 | $36.3M | 0.11% | +294,948+1,667.2% | Added |
| Northern Trust Corp | 303,314 | $35.2M | 0.01% | −4,223−1.4% | Reduced |
| Caisse de Depot Et Placement du Quebec | 260,912 | $30.3M | 0.09% | +260,912 | New |
| Appian Way Asset Management LP | 253,283 | $29.4M | 10.09% | +104,583+70.3% | Added |
| Invesco Ltd. | 251,308 | $29.1M | 0.01% | −12,542−4.8% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 236,700 | $27.5M | 0.14% | −7,100−2.9% | Reduced |
| Robotti Robert | 229,216 | $26.6M | 4.68% | −510.0% | Reduced |
| Legal & General Group Plc | 227,405 | $26.4M | 0.01% | −1,316−0.6% | Reduced |
| Janus Henderson Group PLC | 195,629 | $22.7M | 0.01% | −31,946−14.0% | Reduced |
| Erste Asset Management GmbH | 163,551 | $18.9M | 0.36% | +19,518+13.6% | Added |
| American Century Companies Inc | 162,037 | $18.8M | 0.01% | +140,653+657.7% | Added |
| Storebrand Asset Management AS | 155,687 | $18.1M | 0.09% | +2,726+1.8% | Added |
| Swiss National Bank | 151,700 | $17.6M | 0.01% | −4,000−2.6% | Reduced |
| Man Group plc | – | $17.1M | 0.06% | – | – |
| Scout Investments, Inc. | 144,702 | $16.8M | 0.34% | −164−0.1% | Reduced |
| Bank of America Corp | 142,988 | $16.6M | 0.00% | −355,429−71.3% | Reduced |
| Guggenheim Capital LLC | 139,562 | $16.2M | 0.14% | −7,834−5.3% | Reduced |
| Principal Financial Group Inc | 136,136 | $15.8M | 0.01% | +1,228+0.9% | Added |
| Ameriprise Financial Inc | 131,759 | $15.3M | 0.01% | +1,123+0.9% | Added |
| UBS Asset Management Americas Inc | 128,242 | $14.9M | 0.01% | +6,743+5.5% | Added |
| Lazard Asset Management LLC | 124,806 | $14.5M | 0.02% | +112,504+914.5% | Added |
| Luminus Management LLC | 118,600 | $13.8M | 3.38% | +28,050+31.0% | Added |
| Anomaly Capital Management, LP | 113,850 | $13.2M | 0.58% | +113,850 | New |
| Sumitomo Mitsui Trust Holdings, Inc. | 113,504 | $13.2M | 0.01% | +3,613+3.3% | Added |
| Wells Fargo & Company | 112,549 | $13.1M | 0.00% | −14,714−11.6% | Reduced |
| JPMorgan Chase & Co | 105,616 | $12.2M | 0.00% | −20,428−16.2% | Reduced |
| Sprott Inc. | 105,000 | $12.2M | 1.04% | 00.0% | Unchanged |
| Virginia Retirement Systems Et Al | 102,361 | $11.9M | 0.12% | −19,939−16.3% | Reduced |
| Rhumbline Advisers | 101,868 | $11.8M | 0.01% | −781−0.8% | Reduced |
| Susquehanna Fundamental Investments, LLC | 89,272 | $10.4M | 0.24% | −5,214−5.5% | Reduced |
| Alliancebernstein L.P. | 79,463 | $9.22M | 0.00% | −1,539−1.9% | Reduced |
| Vident Investment Advisory, LLC | 75,342 | $8.74M | 0.28% | −6,220−7.6% | Reduced |
| Moran Wealth Management, LLC | 74,904 | $8.69M | 0.33% | +74,904 | New |
| Winmill & Co. Inc | 70,000 | $8.12M | 3.03% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 65,550 | $7.60M | 0.02% | +4,867+8.0% | Added |
| Contravisory Investment Management, Inc. | 64,716 | $7.51M | 2.12% | −1,044−1.6% | Reduced |
| Cerity Partners LLC | 61,892 | $7.18M | 0.03% | +61,892 | New |
| California State Teachers Retirement System | 58,303 | $6.76M | 0.01% | −645−1.1% | Reduced |
| AustralianSuper Pty Ltd | 57,032 | $6.61M | 0.05% | +57,032 | New |
| Credit Suisse AG | 56,194 | $6.52M | 0.01% | −23,118−29.1% | Reduced |
| Key Group Holdings (Cayman), Ltd. | 55,000 | $6.38M | 0.50% | +55,000 | New |
| Wedge Capital Management L L P | 53,315 | $6.18M | 0.10% | −12,730−19.3% | Reduced |
| American International Group, Inc. | 53,118 | $6.16M | 0.04% | −498−0.9% | Reduced |
| Alyeska Investment Group, L.P. | 49,077 | $5.69M | 0.05% | +13,677+38.6% | Added |
| Fort Pitt Capital Group, LLC | 47,539 | $5.51M | 0.21% | −63,821−57.3% | Reduced |
| STRS Ohio | 47,100 | $5.46M | 0.02% | −3,804−7.5% | Reduced |
| Retirement Systems of Alabama | 44,994 | $5.22M | 0.02% | −392−0.9% | Reduced |
| BNP Paribas Arbitrage, SA | 42,007 | $4.87M | 0.01% | +9,568+29.5% | Added |
| Envestnet Asset Management Inc | 554,086 | $4.87M | 0.00% | +501,774+959.2% | Added |
| State of Wisconsin Investment Board | 38,982 | $4.52M | 0.01% | +19,844+103.7% | Added |
| Tudor Investment Corp Et Al | 37,244 | $4.32M | 0.08% | +37,244 | New |
| Smith, Graham & Co., Investment Advisors, LP | 36,025 | $4.18M | 0.51% | −894−2.4% | Reduced |
| State of Tennessee, Treasury Department | 34,982 | $4.06M | 0.02% | −2,284−6.1% | Reduced |
| State Board of Administration of Florida Retirement System | 34,153 | $3.96M | 0.01% | −2,580−7.0% | Reduced |
| New York State Common Retirement Fund | 33,494 | $3.88M | 0.01% | −2,809−7.7% | Reduced |
| Barclays PLC | 33,290 | $3.86M | 0.00% | −3,101−8.5% | Reduced |
| Quantinno Capital Management LP | 32,321 | $3.75M | 0.25% | −1,395−4.1% | Reduced |
| Hussman Strategic Advisors, Inc. | 31,000 | $3.60M | 0.56% | 00.0% | Unchanged |
| Texas Permanent School Fund | 30,882 | $3.58M | 0.04% | +7,732+33.4% | Added |
| Ambassador Advisors, LLC | 31,550 | $3.58M | 0.81% | −7,600−19.4% | Reduced |
| Amundi | 30,976 | $3.55M | 0.00% | −22,321−41.9% | Reduced |
| Royal Bank of Canada | 29,173 | $3.38M | 0.00% | +2,498+9.4% | Added |
| Swedbank AB | 28,953 | $3.36M | 0.01% | 00.0% | Unchanged |
| Wellington Management Group LLP | 28,756 | $3.34M | 0.00% | −17,591−38.0% | Reduced |
| State of Alaska, Department of Revenue | 28,679 | $3.33M | 0.04% | −55−0.2% | Reduced |
| Clark Estates Inc | 28,600 | $3.32M | 0.66% | −6,000−17.3% | Reduced |
| Great West Life Assurance Co | 28,152 | $3.27M | 0.01% | −1,240−4.2% | Reduced |
| Mercer Global Advisors Inc | 28,131 | $3.26M | 0.01% | −795−2.7% | Reduced |
| Deutsche Bank AG | 28,126 | $3.26M | 0.00% | +2,348+9.1% | Added |
| Manufacturers Life Insurance Company, The | 28,001 | $3.25M | 0.00% | −1,138−3.9% | Reduced |
| Mutual of America Capital Management LLC | 27,689 | $3.21M | 0.04% | −578−2.0% | Reduced |
| Price T Rowe Associates Inc | 27,267 | $3.16M | 0.00% | +295+1.1% | Added |
| PointState Capital LP | 25,986 | $3.01M | 0.17% | +25,986 | New |
| LPL Financial LLC | 25,290 | $2.93M | 0.00% | −1,023−3.9% | Reduced |
| Acadian Asset Management LLC | 24,765 | $2.87M | 0.01% | −21,116−46.0% | Reduced |
| Aviva PLC | 24,733 | $2.87M | 0.01% | −10,282−29.4% | Reduced |
| KBC Group NV | 23,218 | $2.69M | 0.01% | +9,297+66.8% | Added |