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 |
|---|---|---|---|---|---|
| Alliancebernstein L.P. | 72,851 | $10.2M | 0.00% | −1,315−1.8% | Reduced |
| Amundi | 76,644 | $10.4M | 0.00% | +26,618+53.2% | Added |
| Polar Asset Management Partners Inc. | 74,000 | $10.4M | 0.28% | +200+0.3% | Added |
| State of Wisconsin Investment Board | 74,292 | $10.4M | 0.03% | +42,118+130.9% | Added |
| Moran Wealth Management, LLC | 77,217 | $10.8M | 0.38% | −3,325−4.1% | Reduced |
| Wells Fargo & Company | 78,018 | $10.9M | 0.00% | −6,510−7.7% | Reduced |
| ExodusPoint Capital Management, LP | 79,491 | $11.1M | 0.14% | −41,042−34.1% | Reduced |
| Caisse de Depot Et Placement du Quebec | 82,151 | $11.5M | 0.03% | −65,012−44.2% | Reduced |
| Guggenheim Capital LLC | 83,540 | $11.7M | 0.09% | −4,346−4.9% | Reduced |
| Two Sigma Investments, LP | 84,972 | $11.9M | 0.03% | −14,652−14.7% | Reduced |
| KBC Group NV | 85,008 | $11.9M | 0.04% | −10,335−10.8% | Reduced |
| Worldquant Millennium Advisors LLC | 85,397 | $12.0M | 0.17% | −34,267−28.6% | Reduced |
| Vident Advisory, LLC | 85,719 | $12.0M | 0.30% | +293+0.3% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 89,310 | $12.5M | 0.01% | +445+0.5% | Added |
| Sprott Inc. | 90,000 | $12.6M | 1.13% | −5,000−5.3% | Reduced |
| JPMorgan Chase & Co | 93,288 | $13.1M | 0.00% | +1,638+1.8% | Added |
| Rhumbline Advisers | 95,774 | $13.4M | 0.01% | −1,735−1.8% | Reduced |
| Tudor Investment Corp Et Al | 99,753 | $14.0M | 0.19% | +24,581+32.7% | Added |
| Scout Investments, Inc. | 106,344 | $14.9M | 0.37% | −17,673−14.3% | Reduced |
| Bank of Montreal | 111,333 | $15.9M | 0.01% | +107,856+3,102.0% | Added |
| Principal Financial Group Inc | 117,623 | $16.5M | 0.01% | −170−0.1% | Reduced |
| Ameriprise Financial Inc | 118,378 | $16.6M | 0.00% | −6,480−5.2% | Reduced |
| Swiss National Bank | 119,400 | $16.7M | 0.01% | −3,800−3.1% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 132,445 | $18.5M | 0.08% | −95,023−41.8% | Reduced |
| Storebrand Asset Management AS | 144,104 | $20.2M | 0.07% | −1,128−0.8% | Reduced |
| Erste Asset Management GmbH | 158,104 | $22.2M | 0.32% | +2,898+1.9% | Added |
| Janus Henderson Group PLC | 172,439 | $24.1M | 0.01% | −33,175−16.1% | Reduced |
| Federated Hermes, Inc. | 192,107 | $26.9M | 0.07% | −216,188−52.9% | Reduced |
| AQR Capital Management LLC | 195,466 | $27.4M | 0.05% | −115,145−37.1% | Reduced |
| Legal & General Group Plc | 199,825 | $28.0M | 0.01% | −4,955−2.4% | Reduced |
| UBS Asset Management Americas Inc | 210,090 | $29.4M | 0.01% | +2,117+1.0% | Added |
| Robotti Robert | 226,567 | $31.7M | 4.57% | −1,055−0.5% | Reduced |
| Allspring Global Investments Holdings, LLC | 234,879 | $32.9M | 0.05% | −55,442−19.1% | Reduced |
| Morgan Stanley | 255,897 | $35.8M | 0.00% | −74,126−22.5% | Reduced |
| ProShare Advisors LLC | 259,222 | $36.3M | 0.11% | −16,998−6.2% | Reduced |
| Northern Trust Corp | 302,287 | $42.3M | 0.01% | −19,601−6.1% | Reduced |
| Bank of New York Mellon Corp | 349,184 | $48.9M | 0.01% | −26,143−7.0% | Reduced |
| Charles Schwab Investment Management Inc | 352,924 | $49.4M | 0.01% | +8,292+2.4% | Added |
| Norges Bank | 364,111 | $51.0M | 0.01% | −2,707−0.7% | Reduced |
| Samlyn Capital, LLC | 393,294 | $55.0M | 1.20% | +76,563+24.2% | Added |
| First Trust Advisors LP | 411,818 | $57.6M | 0.06% | −61,834−13.1% | Reduced |
| Invesco Ltd. | 428,007 | $59.9M | 0.01% | +123,578+40.6% | Added |
| Geode Capital Management, LLC | 485,542 | $67.8M | 0.01% | +11,403+2.4% | Added |
| Nuveen Asset Management, LLC | 530,409 | $74.2M | 0.02% | +11,737+2.3% | Added |
| Citadel Advisors LLC | 580,478 | $81.2M | 0.08% | −190,176−24.7% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 672,103 | $94.1M | 0.19% | −10,729−1.6% | Reduced |
| Goldman Sachs Group Inc | 689,403 | $96.5M | 0.02% | −16,093−2.3% | Reduced |
| Soroban Capital Partners LP | 871,479 | $122.0M | 1.51% | −27,358−3.0% | Reduced |
| Dimensional Fund Advisors LP | 1,026,066 | $143.6M | 0.04% | −76,483−6.9% | Reduced |
| Pacer Advisors, Inc. | 1,142,590 | $159.9M | 0.45% | +66,614+6.2% | Added |
| State Street Corp | 1,197,152 | $167.6M | 0.01% | +68,697+6.1% | Added |
| Capital World Investors | 1,311,836 | $183.6M | 0.03% | +675,725+106.2% | Added |
| Orbis Allan Gray Ltd | 2,827,239 | $395.7M | 2.48% | −384,284−12.0% | Reduced |
| Victory Capital Management Inc | 3,265,420 | $457.0M | 0.48% | −103,824−3.1% | Reduced |
| Vanguard Group Inc | 3,387,392 | $474.1M | 0.01% | +4,528+0.1% | Added |
| BlackRock Inc. | 3,545,158 | $496.2M | 0.01% | +25,529+0.7% | Added |
| FMR LLC | 4,302,302 | $602.2M | 0.05% | −328,673−7.1% | Reduced |
| Luminus Management LLC | 0 | $0 | 0.00% | −120,500−100.0% | Sold out |
| Hussman Strategic Advisors, Inc. | 0 | $0 | 0.00% | −21,000−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −20,423−100.0% | Sold out |
| Connectus Wealth, LLC | 0 | $0 | 0.00% | −16,586−100.0% | Sold out |
| Financial Enhancement Group LLC | 0 | $0 | 0.00% | −13,703−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −11,862−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −9,500−100.0% | Sold out |
| Sciencast Management LP | 0 | $0 | 0.00% | −7,696−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −7,438−100.0% | Sold out |
| IFM Investors Pty Ltd | 0 | $0 | 0.00% | −7,093−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −6,375−100.0% | Sold out |
| Oak Thistle LLC | 0 | $0 | 0.00% | −5,839−100.0% | Sold out |
| Empirical Finance, LLC | 0 | $0 | 0.00% | −4,447−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −3,588−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −3,562−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −2,629−100.0% | Sold out |
| AE Wealth Management LLC | 0 | $0 | 0.00% | −2,316−100.0% | Sold out |
| Robeco Institutional Asset Management B.V. | 0 | $0 | 0.00% | −2,200−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −2,148−100.0% | Sold out |
| Asahi Life Asset Management Co., Ltd. | 0 | $0 | 0.00% | −2,070−100.0% | Sold out |
| Nebula Research & Development LLC | 0 | $0 | 0.00% | −1,996−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −1,767−100.0% | Sold out |
| Shelton Capital Management | 0 | $0 | 0.00% | −1,692−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −682−100.0% | Sold out |
| Banque Cantonale Vaudoise | 0 | $0 | 0.00% | −637−100.0% | Sold out |
| Baker Avenue Asset Management, LP | 0 | $0 | 0.00% | −58−100.0% | Sold out |
| Anchor Investment Management, LLC | 0 | $0 | 0.00% | −52−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Whittier Trust Co | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Virginia Retirement Systems Et Al | – | – | – | – | Not filed |
| Quantamental Technologies LLC | – | – | – | – | Not filed |
| BTC Capital Management, Inc. | – | – | – | – | Not filed |
| Colony Group LLC | – | – | – | – | Not filed |
| Pathstone Family Office, LLC | – | – | – | – | Not filed |
| Steward Financial Group LLC | – | – | – | – | Not filed |