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 2023
Institutional positions in Westlake Corp as of Dec 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
- 357
- +28 vs. Q3 2023
- Shares held
- 36.0M
- −1.11M (−3.0%) vs. Q3 2023
- Total value
- $5.04B
- +$412.6M (+8.9%) vs. Q3 2023
- New holders
- 57
- 103 more added
- Sold out
- 29
- 137 more reduced
6 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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 2023
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 4,302,302 | $602.2M | 0.05% | −328,673−7.1% | Reduced |
| BlackRock Inc. | 3,545,158 | $496.2M | 0.01% | +25,529+0.7% | Added |
| Vanguard Group Inc | 3,387,392 | $474.1M | 0.01% | +4,528+0.1% | Added |
| Victory Capital Management Inc | 3,265,420 | $457.0M | 0.48% | −103,824−3.1% | Reduced |
| Orbis Allan Gray Ltd | 2,827,239 | $395.7M | 2.48% | −384,284−12.0% | Reduced |
| Capital World Investors | 1,311,836 | $183.6M | 0.03% | +675,725+106.2% | Added |
| State Street Corp | 1,197,152 | $167.6M | 0.01% | +68,697+6.1% | Added |
| Pacer Advisors, Inc. | 1,142,590 | $159.9M | 0.45% | +66,614+6.2% | Added |
| Dimensional Fund Advisors LP | 1,026,066 | $143.6M | 0.04% | −76,483−6.9% | Reduced |
| Soroban Capital Partners LP | 871,479 | $122.0M | 1.51% | −27,358−3.0% | Reduced |
| Goldman Sachs Group Inc | 689,403 | $96.5M | 0.02% | −16,093−2.3% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 672,103 | $94.1M | 0.19% | −10,729−1.6% | Reduced |
| Citadel Advisors LLC | 580,478 | $81.2M | 0.08% | −190,176−24.7% | Reduced |
| Nuveen Asset Management, LLC | 530,409 | $74.2M | 0.02% | +11,737+2.3% | Added |
| Geode Capital Management, LLC | 485,542 | $67.8M | 0.01% | +11,403+2.4% | Added |
| Invesco Ltd. | 428,007 | $59.9M | 0.01% | +123,578+40.6% | Added |
| First Trust Advisors LP | 411,818 | $57.6M | 0.06% | −61,834−13.1% | Reduced |
| Samlyn Capital, LLC | 393,294 | $55.0M | 1.20% | +76,563+24.2% | Added |
| Norges Bank | 364,111 | $51.0M | 0.01% | −2,707−0.7% | Reduced |
| Charles Schwab Investment Management Inc | 352,924 | $49.4M | 0.01% | +8,292+2.4% | Added |
| Bank of New York Mellon Corp | 349,184 | $48.9M | 0.01% | −26,143−7.0% | Reduced |
| Northern Trust Corp | 302,287 | $42.3M | 0.01% | −19,601−6.1% | Reduced |
| ProShare Advisors LLC | 259,222 | $36.3M | 0.11% | −16,998−6.2% | Reduced |
| Morgan Stanley | 255,897 | $35.8M | 0.00% | −74,126−22.5% | Reduced |
| Allspring Global Investments Holdings, LLC | 234,879 | $32.9M | 0.05% | −55,442−19.1% | Reduced |
| Robotti Robert | 226,567 | $31.7M | 4.57% | −1,055−0.5% | Reduced |
| UBS Asset Management Americas Inc | 210,090 | $29.4M | 0.01% | +2,117+1.0% | Added |
| Legal & General Group Plc | 199,825 | $28.0M | 0.01% | −4,955−2.4% | Reduced |
| AQR Capital Management LLC | 195,466 | $27.4M | 0.05% | −115,145−37.1% | Reduced |
| Federated Hermes, Inc. | 192,107 | $26.9M | 0.07% | −216,188−52.9% | Reduced |
| Janus Henderson Group PLC | 172,439 | $24.1M | 0.01% | −33,175−16.1% | Reduced |
| Erste Asset Management GmbH | 158,104 | $22.2M | 0.32% | +2,898+1.9% | Added |
| Storebrand Asset Management AS | 144,104 | $20.2M | 0.07% | −1,128−0.8% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 132,445 | $18.5M | 0.08% | −95,023−41.8% | Reduced |
| Swiss National Bank | 119,400 | $16.7M | 0.01% | −3,800−3.1% | Reduced |
| Ameriprise Financial Inc | 118,378 | $16.6M | 0.00% | −6,480−5.2% | Reduced |
| Principal Financial Group Inc | 117,623 | $16.5M | 0.01% | −170−0.1% | Reduced |
| Bank of Montreal | 111,333 | $15.9M | 0.01% | +107,856+3,102.0% | Added |
| Scout Investments, Inc. | 106,344 | $14.9M | 0.37% | −17,673−14.3% | Reduced |
| Tudor Investment Corp Et Al | 99,753 | $14.0M | 0.19% | +24,581+32.7% | Added |
| Rhumbline Advisers | 95,774 | $13.4M | 0.01% | −1,735−1.8% | Reduced |
| JPMorgan Chase & Co | 93,288 | $13.1M | 0.00% | +1,638+1.8% | Added |
| Sprott Inc. | 90,000 | $12.6M | 1.13% | −5,000−5.3% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 89,310 | $12.5M | 0.01% | +445+0.5% | Added |
| Vident Advisory, LLC | 85,719 | $12.0M | 0.30% | +293+0.3% | Added |
| Worldquant Millennium Advisors LLC | 85,397 | $12.0M | 0.17% | −34,267−28.6% | Reduced |
| KBC Group NV | 85,008 | $11.9M | 0.04% | −10,335−10.8% | Reduced |
| Two Sigma Investments, LP | 84,972 | $11.9M | 0.03% | −14,652−14.7% | Reduced |
| Guggenheim Capital LLC | 83,540 | $11.7M | 0.09% | −4,346−4.9% | Reduced |
| Caisse de Depot Et Placement du Quebec | 82,151 | $11.5M | 0.03% | −65,012−44.2% | Reduced |
| ExodusPoint Capital Management, LP | 79,491 | $11.1M | 0.14% | −41,042−34.1% | Reduced |
| Wells Fargo & Company | 78,018 | $10.9M | 0.00% | −6,510−7.7% | Reduced |
| Moran Wealth Management, LLC | 77,217 | $10.8M | 0.38% | −3,325−4.1% | Reduced |
| State of Wisconsin Investment Board | 74,292 | $10.4M | 0.03% | +42,118+130.9% | Added |
| Polar Asset Management Partners Inc. | 74,000 | $10.4M | 0.28% | +200+0.3% | Added |
| Amundi | 76,644 | $10.4M | 0.00% | +26,618+53.2% | Added |
| Alliancebernstein L.P. | 72,851 | $10.2M | 0.00% | −1,315−1.8% | Reduced |
| Bank of America Corp | 70,493 | $9.87M | 0.00% | −12,369−14.9% | Reduced |
| Two Sigma Advisers, LP | 70,100 | $9.81M | 0.02% | +54,200+340.9% | Added |
| Winmill & Co. Inc | 70,000 | $9.80M | 3.14% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 69,000 | $9.66M | 0.01% | +6,700+10.8% | Added |
| California Public Employees Retirement System | 66,606 | $9.32M | 0.01% | +1,570+2.4% | Added |
| Wedge Capital Management L L P | 64,811 | $9.07M | 0.16% | +10,687+19.7% | Added |
| Contravisory Investment Management, Inc. | 63,972 | $8.95M | 2.19% | −193−0.3% | Reduced |
| Cerity Partners LLC | 60,676 | $8.49M | 0.03% | +60,676 | New |
| American Century Companies Inc | 60,199 | $8.43M | 0.01% | −66,484−52.5% | Reduced |
| Barclays PLC | 53,964 | $7.55M | 0.00% | +10,271+23.5% | Added |
| Janney Montgomery Scott LLC | 53,504 | $7.49M | 0.02% | +53,504 | New |
| California State Teachers Retirement System | 52,083 | $7.29M | 0.01% | −1,413−2.6% | Reduced |
| UBS Group AG | 48,169 | $6.74M | 0.00% | +16,964+54.4% | Added |
| Wellington Management Group LLP | 46,074 | $6.45M | 0.00% | −4,120−8.2% | Reduced |
| Alyeska Investment Group, L.P. | 45,364 | $6.35M | 0.04% | −30,954−40.6% | Reduced |
| Squarepoint Ops LLC | 44,916 | $6.29M | 0.03% | +11,758+35.5% | Added |
| American International Group, Inc. | 43,275 | $6.06M | 0.02% | −1,703−3.8% | Reduced |
| Jefferies Financial Group Inc. | 43,032 | $6.02M | 0.09% | +43,032 | New |
| Price T Rowe Associates Inc | 42,297 | $5.92M | 0.00% | +109+0.3% | Added |
| Ensign Peak Advisors, Inc | 42,125 | $5.90M | 0.01% | −3,549−7.8% | Reduced |
| Credit Suisse AG | 41,606 | $5.82M | 0.01% | +93+0.2% | Added |
| BNP Paribas Arbitrage, SA | 41,435 | $5.80M | 0.01% | +11,447+38.2% | Added |
| Quantinno Capital Management LP | 40,934 | $5.73M | 0.20% | +3,672+9.9% | Added |
| Knights of Columbus Asset Advisors LLC | 40,392 | $5.65M | 0.36% | +40,392 | New |
| Retirement Systems of Alabama | 40,123 | $5.62M | 0.02% | +265+0.7% | Added |
| Raymond James & Associates | 38,050 | $5.33M | 0.00% | +477+1.3% | Added |
| UBS Oconnor LLC | 35,700 | $5.00M | 0.16% | +35,700 | New |
| STRS Ohio | 33,888 | $4.74M | 0.02% | −2,463−6.8% | Reduced |
| Deutsche Bank AG | 33,063 | $4.63M | 0.00% | +3,225+10.8% | Added |
| Susquehanna Portfolio Strategies, LLC | 33,036 | $4.62M | 0.08% | +33,036 | New |
| Fort Pitt Capital Group, LLC | 32,333 | $4.53M | 0.15% | 00.0% | Unchanged |
| Smith, Graham & Co., Investment Advisors, LP | 32,090 | $4.49M | 0.52% | −3,271−9.3% | Reduced |
| Treasurer of the State of North Carolina | 31,797 | $4.45M | 0.02% | +14,228+81.0% | Added |
| State Board of Administration of Florida Retirement System | 31,435 | $4.40M | 0.01% | +2,861+10.0% | Added |
| Great West Life Assurance Co | 30,388 | $4.25M | 0.01% | +8,035+35.9% | Added |
| LMCG Investments, LLC | 28,527 | $3.99M | 0.25% | +8,870+45.1% | Added |
| Texas Permanent School Fund | 27,752 | $3.88M | 0.03% | +603+2.2% | Added |
| State of Alaska, Department of Revenue | 27,398 | $3.83M | 0.05% | −330−1.2% | Reduced |
| Citigroup Inc | 27,311 | $3.82M | 0.01% | −22,228−44.9% | Reduced |
| QRG Capital Management, Inc. | 25,587 | $3.58M | 0.05% | +1,371+5.7% | Added |
| Mercer Global Advisors Inc | 24,896 | $3.48M | 0.01% | +910+3.8% | Added |
| Millennium Management LLC | 24,875 | $3.48M | 0.00% | −175,389−87.6% | Reduced |
| Manufacturers Life Insurance Company, The | 24,602 | $3.44M | 0.00% | −874−3.4% | Reduced |