WestlakeWLK
13F holders, Q1 2026 (March 31)At the end of Q1 2026, 339 institutions reported holding Westlake Corp. (WLK) in their 13F filings, up 41 from Q4 2025. 86 opened new positions and 44 sold out. The largest holders were Orbis Allan Gray Ltd ($618.4M), Capital World Investors ($491.9M) and BlackRock, Inc. ($359.7M). 7 famous investors held it, including Stanley Druckenmiller (0.1% of Duquesne Family Office's portfolio), Ken Griffin (0.1% of Citadel Advisors's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Westlake Corp.
- CUSIP
- 960413102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 86 | $231.9M |
| Exits | 44 | $154.9M |
All 13F filers, Q4 2025 → Q1 2026: 8,889,330 shares bought and 10,390,415 shares sold, net −1,501,085 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 339 holders
| Orbis Allan Gray Ltd | 2.61% | Add +20.7% | 5,293,519 | $618.4M |
| Capital World Investors | 0.07% | Add +93.9% | 4,211,006 | $491.9M |
| BlackRock, Inc. | 0.01% | Reduce -5.6% | 3,079,087 | $359.7M |
| T. Rowe Price Associates Inc. | 0.03% | Add +9.0% | 2,407,457 | $281.2M |
| Brandes Investment Partners, LP | 1.52% | Add +10.3% | 1,842,650 | $215.3M |
| Wellington Management Group LLP | 0.04% | Reduce -57.5% | 1,793,517 | $209.5M |
| Vanguard Portfolio Management LLC | 0.01% | — | 1,769,808 | $206.7M |
| Dimensional Fund Advisors LP | 0.04% | Reduce -22.3% | 1,466,020 | $171.3M |
| Vanguard Capital Management LLC | 0.00% | — | 1,455,594 | $170.0M |
| Goldman Sachs Group Inc. | 0.02% | Add +84.8% | 1,393,327 | $162.8M |
| State Street Corp. | 0.01% | Reduce -1.2% | 1,380,493 | $161.3M |
| FMR LLC | 0.01% | Add +473.5% | 1,312,473 | $153.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.02% | Add +6.1% | 981,405 | $114.6M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.15% | Add +7.7% | 943,975 | $110.3M |
| UBS Group AG | 0.02% | Add +25.2% | 811,266 | $94.8M |
| Holocene Advisors, LP | 0.21% | Reduce -40.2% | 730,035 | $85.3M |
| Citadel Advisors | 0.06% | Add +252.0% | 715,586 | $83.6M |
| Geode Capital Management, LLC | 0.00% | Add +3.3% | 614,334 | $71.8M |
| Nuveen, LLC | 0.02% | Reduce -13.5% | 564,744 | $66.0M |
| Morgan Stanley | 0.00% | Reduce -36.0% | 486,508 | $56.8M |
| Erste Asset Management GmbH | 0.42% | Reduce -6.0% | 395,000 | $45.8M |
| Schroder Investment Management Group | 0.04% | New | 374,508 | $43.4M |
| Balyasny Asset Management L.P. | 0.09% | New | 369,672 | $43.2M |
| Jacobs Levy Equity Management, Inc. | 0.17% | Reduce -47.8% | 349,035 | $40.8M |
| Woodline Partners LP | 0.15% | Reduce -46.3% | 337,075 | $39.4M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +4.9% | 311,762 | $36.4M |
| New York State Common Retirement Fund | 0.05% | No change | 309,626 | $36.2M |
| ProShare Advisors LLC | 0.05% | Reduce -32.0% | 295,811 | $34.6M |
| Allspring Global Investments Holdings, LLC | 0.06% | Reduce -43.7% | 285,434 | $33.3M |
| Janus Henderson Group PLC | 0.02% | Reduce -19.4% | 269,783 | $31.5M |
| Northern Trust Corp. | 0.00% | Add +0.2% | 269,149 | $31.4M |
| Federated Hermes, Inc. | 0.05% | Add +147.5% | 266,651 | $31.2M |
| AQR Capital Management | 0.01% | Add +1166.5% | 260,070 | $30.4M |
| Van Lanschot Kempen Investment Management N.V. | 0.25% | Add +3.6% | 244,308 | $28.5M |
| Bank of America Corp. | 0.00% | Add +28.5% | 236,986 | $27.7M |
| D. E. Shaw & Co. | 0.02% | Reduce -52.0% | 233,183 | $27.2M |
| Merewether Investment Management, LP | 0.50% | Reduce -43.3% | 219,900 | $25.7M |
| Vanguard Fiduciary Trust Co. | 0.01% | — | 205,684 | $24.0M |
| Deprince Race & Zollo Inc. | 0.45% | Reduce -0.4% | 203,366 | $23.8M |
| Bank of New York Mellon Corp | 0.00% | Add +3.9% | 181,070 | $21.2M |
| Invesco Ltd. | 0.00% | Reduce -15.8% | 179,402 | $21.0M |
| Teachers Retirement System of the State of Kentucky | 0.16% | Add +7.8% | 178,160 | $20.8M |
| Ceredex Value Advisors LLC | 0.65% | Reduce -24.5% | 177,900 | $20.8M |
| Man Group plc | 0.04% | New | 160,286 | $18.7M |
| Robotti Robert | 2.64% | Reduce -43.4% | 145,004 | $16.9M |
| Capstone Investment Advisors, LLC | 0.18% | Add +4254.2% | 135,808 | $15.9M |
| Sprott Inc. | 0.47% | Reduce -5.3% | 132,610 | $15.5M |
| Quantinno Capital Management LP | 0.02% | Add +4.4% | 121,444 | $14.2M |
| Recurrent Investment Advisors LLC | 0.79% | Add +49.1% | 112,790 | $13.2M |
| Yaupon Capital Management LP | 0.62% | New | 107,044 | $12.5M |
| Wells Fargo & Company | 0.00% | Add +16.1% | 106,705 | $12.5M |
| Jane Street Group, LLC | 0.01% | New | 105,686 | $12.3M |
| Royal Bank of Canada | 0.00% | Add +21.9% | 103,951 | $12.1M |
| First Trust Advisors LP | 0.01% | Reduce -30.1% | 102,299 | $12.0M |
| JPMorgan Chase & Co. | 0.00% | Add +45.2% | 97,739 | $11.3M |
| Russell Investments Group, Ltd. | 0.01% | Reduce -43.6% | 89,362 | $10.4M |
| Rhumbline Advisers | 0.01% | Add +2.2% | 87,304 | $10.2M |
| Millennium Management | 0.01% | Reduce -80.1% | 84,997 | $9.9M |
| Meiji Yasuda Asset Management Co Ltd. | 0.46% | New | 79,478 | $9.3M |
| Swiss National Bank | 0.01% | No change | 75,900 | $8.9M |
| PDT Partners, LLC | 0.52% | Add +16.6% | 75,777 | $8.9M |
| Principal Financial Group Inc. | 0.00% | Add +3.9% | 74,481 | $8.7M |
| Thomist Capital Management, LP | 2.92% | Reduce -34.8% | 73,000 | $8.5M |
| Cerity Partners LLC | 0.01% | Reduce -42.8% | 72,679 | $8.5M |
| Agman Capital LLC | 6.72% | No change | 72,283 | $8.4M |
| Mackenzie Financial Corp. | 0.01% | Add +262.9% | 71,968 | $8.4M |
| Capital International Sarl | 0.12% | New | 63,634 | $7.4M |
| Lloyd Harbor Capital Management, LLC | 3.75% | New | 62,000 | $7.2M |
| Rokos Capital Management LLP | 0.13% | New | 60,800 | $7.1M |
| Walleye Capital LLC | 0.05% | Add +25.5% | 59,814 | $7.0M |
| Citigroup Inc. | 0.00% | Add +99.6% | 54,559 | $6.4M |
| Legal & General Group Plc | 0.00% | Reduce -11.4% | 50,737 | $5.9M |
| Albar Capital Partners LLP | 0.92% | New | 48,814 | $5.7M |
| Tidal Investments LLC | 0.02% | New | 47,820 | $5.5M |
| Victory Capital Management Inc. | 0.00% | Reduce -95.9% | 45,578 | $5.3M |
| Trek Financial, LLC | 0.28% | New | 45,296 | $5.3M |
| California State Teachers Retirement System | 0.01% | Add +23.2% | 44,459 | $5.2M |
| Occudo Quantitative Strategies LP | 0.28% | Add +76.5% | 44,430 | $5.1M |
| Alliancebernstein L.P. | 0.00% | Reduce -1.7% | 67,315 | $5.0M |
| Engineers Gate Manager LP | 0.06% | Reduce -85.3% | 42,499 | $5.0M |
| BI Asset Management Fondsmaeglerselskab A/S | 0.05% | Add +497.5% | 42,043 | $4.9M |
| Retirement Systems of Alabama | 0.02% | Add +2.1% | 40,886 | $4.8M |
| Bank of Montreal | 0.00% | Add +45.0% | 39,038 | $4.6M |
| Squarepoint Ops LLC | 0.01% | New | 38,532 | $4.5M |
| Capital International Ltd. | 0.16% | New | 37,300 | $4.4M |
| Twin Tree Management, LP | 0.88% | New | 35,977 | $4.2M |
| Corient Private Wealth LP | 0.01% | Reduce -31.0% | 34,971 | $4.1M |
| Gotham Asset Management | 0.01% | Add +275.7% | 34,564 | $4.0M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 33,358 | $3.9M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -0.5% | 33,295 | $3.9M |
| Boston Partners | 0.00% | New | 31,696 | $3.7M |
| Occam Crest Management LP | 2.16% | New | 29,256 | $3.4M |
| Ameriprise Financial Inc. | 0.00% | Reduce -42.0% | 28,487 | $3.3M |
| Envestnet Asset Management Inc. | 0.00% | Add +0.6% | 28,046 | $3.3M |
| State of Wisconsin Investment Board | 0.01% | Reduce -1.8% | 25,252 | $2.9M |
| California Public Employees Retirement System | 0.00% | Reduce -46.5% | 25,000 | $2.9M |
| Stifel Financial Corp. | 0.00% | Add +31.7% | 24,925 | $2.9M |
| SG Americas Securities, LLC | 0.00% | Reduce -33.6% | 24,576 | $2.9M |
| State Board of Administration of Florida Retirement System | 0.01% | No change | 24,115 | $2.8M |
| Quantbot Technologies LP | 0.11% | Reduce -39.6% | 23,936 | $2.8M |
| State of New Jersey Common Pension Fund D | 0.01% | New | 23,658 | $2.8M |
| AMG National Trust Bank | 0.06% | Reduce -1.2% | 23,041 | $2.7M |
| Capital International, Inc. | 0.02% | New | 21,359 | $2.5M |
| Duquesne Family Office | 0.08% | New | 21,194 | $2.5M |
| Ameritas Investment Partners, Inc. | 0.07% | Add +2.0% | 20,479 | $2.4M |
| South Dakota Investment Council | 0.05% | No change | 20,235 | $2.4M |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +3.5% | 20,005 | $2.3M |
| American Century Companies Inc. | 0.00% | Add +9.4% | 20,020 | $2.3M |
| KBC Group NV | 0.01% | Reduce -12.6% | 19,432 | $2.3M |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +43.4% | 19,174 | $2.2M |
| Dana Investment Advisors, Inc. | 0.07% | Reduce -1.0% | 18,965 | $2.2M |
| Worldquant Millennium Advisors LLC | 0.01% | New | 18,374 | $2.1M |
| Susquehanna Portfolio Strategies, LLC | 0.03% | New | 18,372 | $2.1M |
| Edgestream Partners, L.P. | 0.07% | Add +149.2% | 17,681 | $2.1M |
| MetLife Investment Management, LLC | 0.01% | Add +0.7% | 16,406 | $1.9M |
| Fifth Third Bancorp | 0.00% | Add +2755.0% | 16,045 | $1.9M |
| Storebrand Asset Management As | 0.01% | No change | 15,405 | $1.8M |
| Amalgamated Bank | 0.01% | Reduce -0.3% | 15,006 | $1.8M |
| Susquehanna International Group, LLP | 0.00% | Reduce -37.0% | 14,999 | $1.8M |
| Barclays PLC | 0.00% | Reduce -78.3% | 14,456 | $1.7M |
| SummitTX Capital, L.P. | 0.05% | New | 14,335 | $1.7M |
| Treasurer of the State of North Carolina | 0.01% | Add +2.2% | 14,304 | $1.7M |
| Vanguard Global Advisers, LLC | 0.00% | — | 13,911 | $1.6M |
| Nomura Asset Management International Inc. | 0.00% | New | 13,868 | $1.6M |
| LPL Financial LLC | 0.00% | Add +3.3% | 13,059 | $1.5M |
| State of Tennessee, Department of Treasury | 0.01% | No change | 12,946 | $1.5M |
| XTX Topco Ltd | 0.03% | New | 12,878 | $1.5M |
| Mutual of America Capital Management LLC | 0.02% | Reduce -7.9% | 12,780 | $1.5M |
| Sei Investments Co. | 0.00% | Reduce -55.1% | 12,769 | $1.5M |
| Summit Trail Advisors, LLC | 0.02% | Reduce -19.5% | 12,524 | $1.5M |
| Polymer Capital Management (US) LLC | 0.22% | Add +92.6% | 12,520 | $1.5M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Add +35.9% | 12,479 | $1.5M |
| Creative Planning | 0.00% | Add +55.6% | 11,961 | $1.4M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Add +12.8% | 11,262 | $1.3M |
| Arizona State Retirement System | 0.01% | Reduce -2.0% | 10,580 | $1.2M |
| Yousif Capital Management, LLC | 0.01% | Reduce -4.9% | 10,518 | $1.2M |
| Schonfeld Strategic Advisors LLC | 0.01% | Add +69.4% | 10,182 | $1.2M |
| Walnut Level Capital LLC | 1.33% | Reduce -12.3% | 10,000 | $1.2M |
| Vanguard Investments Australia, Ltd. | 0.00% | — | 9,932 | $1.2M |
| Public Employees Retirement System of Ohio | 0.00% | Reduce -3.3% | 9,724 | $1.1M |
| Louisiana State Employees Retirement System | 0.02% | Add +5.4% | 9,700 | $1.1M |
| Inspire Investing, LLC | 0.07% | Add +117.4% | 9,576 | $1.1M |
| Virtu Financial LLC | 0.05% | New | 9,532 | $1.1M |
| Vanguard Personalized Indexing Management, LLC | 0.01% | Reduce -3.0% | 9,463 | $1.1M |
| Handelsbanken Fonder AB | 0.00% | No change | 8,900 | $1.0M |
| KLP Kapitalforvaltning As | 0.00% | Add +3.7% | 8,500 | $993K |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.01% | Add +0.1% | 8,356 | $976K |
| WINTON GROUP Ltd | 0.03% | New | 8,229 | $961K |
| Aster Capital Management (DIFC) Ltd | 0.31% | Add +1049.8% | 9,428 | $943K |
| Twin Focus Capital Partners, LLC | 0.11% | New | 8,000 | $935K |
| State of Michigan Retirement System | 0.00% | Add +1.3% | 8,000 | $935K |
| Total Wealth Planning & Management, Inc. | 0.71% | Add +160.8% | 7,707 | $900K |
| Capital Group Investment Management Pte. LTD. | 0.15% | New | 7,693 | $899K |
| Eurizon Capital SGR S.p.A. | 0.00% | New | 7,518 | $878K |
| Thrivent Financial for Lutherans | 0.00% | Add +0.1% | 7,514 | $878K |
| Northwestern Mutual Investment Management Company, LLC | 0.01% | Add +0.1% | 7,472 | $873K |
| Dynamic Technology Lab Private Ltd | 0.14% | New | 7,352 | $859K |
| Gateway Investment Advisers LLC | 0.01% | New | 7,147 | $835K |
| First Eagle Investment Management, LLC | 0.00% | Add +13330.2% | 7,118 | $832K |
| New Mexico Educational Retirement Board | 0.03% | No change | 7,000 | $818K |
| Oregon Public Employees Retirement Fund | 0.01% | Add +3.0% | 6,868 | $802K |
| BNP Paribas Financial Markets | 0.00% | Reduce -92.8% | 6,690 | $782K |
| Pettee Investors, Inc. | 0.40% | No change | 6,711 | $774K |
| Allstate Corp. | 0.01% | New | 6,575 | $768K |
| Concentric Capital Strategies, LP | 0.07% | New | 6,517 | $761K |
| RiverFront Investment Group, LLC | 0.01% | No change | 6,497 | $759K |
| Pictet Asset Management Holding SA | 0.00% | Add +0.6% | 6,059 | $708K |
| Mercer Global Advisors Inc. | 0.00% | Add +45.7% | 5,717 | $668K |
| Brooklyn Investment Group | 0.02% | New | 5,705 | $666K |
| Police & Firemen's Retirement System of New Jersey | 0.01% | No change | 5,684 | $664K |
| Advisors Asset Management, Inc. | 0.01% | Reduce -6.6% | 5,647 | $660K |
| Storgate, LLC | 0.51% | Add +2.4% | 5,510 | $644K |
| Unison Advisors LLC | 0.05% | Add +0.6% | 5,247 | $613K |
| Caprock Group, LLC | 0.01% | New | 5,171 | $604K |
| Gsa Capital Partners LLP | 0.04% | New | 5,106 | $596K |
| Pathstone Holdings, LLC | 0.00% | Add +6.7% | 4,960 | $579K |
| Hartree Partners, LP | 0.11% | New | 4,300 | $502K |
| New York State Teachers Retirement System | 0.00% | Reduce -20.7% | 4,143 | $484K |
| Guggenheim Capital LLC | 0.00% | Reduce -1.3% | 4,119 | $481K |
| Xponance LLC | 0.00% | Add +28.6% | 3,988 | $466K |
| CIBC Asset Management Inc | 0.00% | No change | 3,977 | $465K |
| Cetera Investment Advisers | 0.00% | Add +24.3% | 3,921 | $458K |
| Pacer Advisors, Inc. | 0.00% | Reduce -3.6% | 3,844 | $449K |
| Marnell Management LLC | 0.30% | Reduce -67.5% | 3,802 | $444K |
| Atria Investments, Inc | 0.00% | Reduce -7.0% | 3,786 | $442K |
| Evergreen Capital Management LLC | 0.01% | New | 3,651 | $427K |
| GAMCO Investors | 0.00% | Reduce -11.4% | 3,491 | $408K |
| State of Alaska, Department of Revenue | 0.00% | Add +1.4% | 3,354 | $391K |
| AlphaGrep UK Ltd | 0.11% | Reduce -4.5% | 3,316 | $387K |
| Sanctuary Advisors, LLC | 0.00% | Reduce -4.9% | 3,272 | $382K |
| Havemeyer Place LP | 0.04% | New | 3,250 | $380K |
| Claret Asset Management Corp | 0.04% | No change | 3,007 | $351K |
| Thompson Siegel & Walmsley LLC | 0.01% | Reduce -99.5% | 2,976 | $348K |
| Twinbeech Capital LP | 0.04% | New | 2,950 | $345K |
| Raymond James Financial Inc. | 0.00% | Reduce -6.1% | 2,931 | $342K |
| Odyssean, LLC | 0.12% | No change | 2,903 | $339K |
| Integrated Wealth Concepts LLC | 0.00% | New | 2,856 | $334K |
| iSAM Funds (UK) Ltd | 0.16% | Add +0.3% | 2,835 | $331K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | New | 2,588 | $309K |
| Archer Investment Corp | 0.06% | New | 2,493 | $291K |
| Voya Investment Management LLC | 0.00% | New | 2,436 | $285K |
| Securian Asset Management, Inc. | 0.01% | No change | 2,403 | $281K |
| Mfa Wealth Advisors, LLC | 0.05% | New | 2,382 | $278K |
| Deutsche Bank AG | 0.00% | Add +118.6% | 2,370 | $277K |
| HighTower Advisors, LLC | 0.00% | New | 2,305 | $269K |
| Swiss Life Asset Management Ltd | 0.00% | New | 2,253 | $263K |
| Cwm, LLC | 0.00% | Add +550.0% | 2,249 | $263K |
| Prudential Financial Inc. | 0.00% | New | 2,228 | $260K |
| Brown Advisory Inc. | 0.00% | New | 2,226 | $260K |
| Canada Pension Plan Investment Board | 0.00% | Reduce -72.1% | 2,210 | $258K |
| CoreFirst Bank & Trust | 0.14% | Reduce -1.1% | 2,195 | $256K |
| Hantz Financial Services, Inc. | 0.00% | Add +40.2% | 2,177 | $254K |
| US Bancorp \de | 0.00% | Add +8.0% | 2,170 | $254K |
| Empowered Funds, LLC | 0.00% | New | 2,162 | $253K |
| Sivia Capital Partners, LLC | 0.05% | New | 2,099 | $245K |
| Eagle Global Advisors LLC | 0.01% | New | 2,066 | $241K |
| Callan Family Office, LLC | 0.01% | New | 2,017 | $236K |
| Verition Fund Management LLC | 0.00% | Reduce -92.3% | 2,000 | $234K |
| Amundi | 0.00% | New | 1,997 | $233K |
| Federation des caisses Desjardins du Quebec | 0.00% | Reduce -22.2% | 1,990 | $232K |
| Cercano Management LLC | 0.01% | New | 1,978 | $231K |
| Maryland State Retirement & Pension System | 0.00% | New | 1,915 | $224K |
| Greenland Capital Management LP | 0.05% | New | 1,812 | $212K |
| Utah Retirement Systems | 0.00% | New | 1,800 | $210K |
| Laird Norton Wetherby Trust Company, LLC | 0.00% | New | 1,752 | $205K |
| Virtus Investment Advisers, LLC | 0.06% | Reduce -20.6% | 1,736 | $203K |
| Oppenheimer & Co. Inc. | 0.00% | New | 1,735 | $203K |
| Public Employees Retirement Association of Colorado | 0.00% | No change | 1,704 | $199K |
| Allworth Financial LP | 0.00% | Add +18.3% | 1,701 | $199K |
| MAI Capital Management | 0.00% | Add +23.9% | 1,631 | $191K |
| PNC Financial Services Group, Inc. | 0.00% | Add +14.0% | 1,522 | $178K |
| Kimelman & Baird, LLC | 0.01% | No change | 1,500 | $175K |
| TD Waterhouse Canada Inc. | 0.00% | Add +3337.5% | 1,375 | $160K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +77.5% | 1,356 | $158K |
| Transamerica Financial Advisors, LLC | 0.01% | Add +61.5% | 1,300 | $152K |
| Signaturefd, LLC | 0.00% | Add +708.5% | 1,148 | $134K |
| Sterling Capital Management LLC | 0.00% | Reduce -43.3% | 1,122 | $131K |
| Pickering Energy Partners LP | 0.24% | New | 1,000 | $117K |
| Compagnie Lombard Odier SCmA | 0.00% | New | 860 | $100K |
| Rockefeller Capital Management L.P. | 0.00% | Reduce -10.3% | 857 | $100K |
| Parallel Advisors, LLC | 0.00% | Add +133.8% | 830 | $97K |
| STRS Ohio | 0.00% | Reduce -0.1% | 799 | $93K |
| NewEdge Advisors, LLC | 0.00% | Reduce -7.5% | 689 | $81K |
| Nomura Asset Management Co. Ltd. | 0.00% | Reduce -25.2% | 670 | $78K |
| Covestor Ltd | 0.04% | Reduce -67.5% | 541 | $63K |
| Exchange Traded Concepts, LLC | 0.00% | New | 536 | $63K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.00% | Add +58.3% | 535 | $62K |
| GAMMA Investing LLC | 0.00% | Add +14.4% | 531 | $62K |
| Walleye Trading LLC | 0.00% | New | 514 | $60K |
| Destiny Wealth Partners, LLC | 0.01% | New | 510 | $60K |
| Quadrant Capital Group LLC | 0.00% | Reduce -14.5% | 382 | $45K |
| Jones Financial Companies LLLP | 0.00% | Add +18.0% | 361 | $41K |
| UMB Bank, n.a. | 0.00% | Reduce -20.6% | 312 | $36K |
| Farther Finance Advisors, LLC | 0.00% | Reduce -3.7% | 289 | $34K |
| MassMutual Private Wealth & Trust, FSB | 0.00% | No change | 274 | $32K |
| Deseret Mutual Benefit Administrators | 0.01% | Add +86.5% | 248 | $29K |
| Quent Capital, LLC | 0.00% | Add +2.6% | 238 | $28K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +37.6% | 234 | $27K |
| Arax Advisory Partners | 0.00% | Add +1060.0% | 232 | $27K |
| Smartleaf Asset Management LLC | 0.00% | Add +110.9% | 213 | $25K |
| Lanark Financial, Inc. | 0.00% | Reduce -2.0% | 200 | $23K |
| Osaic Holdings, Inc. | 0.00% | Reduce -32.1% | 190 | $22K |
| Advisory Services Network, LLC | 0.00% | New | 187 | $22K |
| Nisa Investment Advisors, LLC | 0.00% | Add +270.0% | 185 | $22K |
| National Bank of Canada | 0.00% | Reduce -33.8% | 182 | $21K |
| Root Financial Partners, LLC | 0.00% | Add +616.7% | 172 | $20K |
| Spire Wealth Management | 0.00% | Reduce -43.8% | 172 | $20K |
| Cullen/Frost Bankers, Inc. | 0.00% | Add +0.6% | 165 | $19K |
| Los Angeles Capital Management LLC | 0.00% | No change | 157 | $18K |
| Huntington National Bank | 0.00% | No change | 119 | $14K |
| Versant Capital Management, Inc | 0.00% | Add +461.1% | 101 | $12K |
| Ancora Advisors LLC | 0.00% | No change | 97 | $11K |
| Private Trust Co. NA | 0.00% | No change | 90 | $11K |
| CVA Family Office, LLC | 0.00% | New | 84 | $10K |
| Parkside Financial Bank & Trust | 0.00% | Reduce -74.6% | 68 | $8K |
| Ascentis Independent Advisors | 0.00% | New | 66 | $8K |
| Rakuten Securities, Inc. | 0.00% | Add +966.7% | 64 | $7K |
| Bessemer Group Inc. | 0.00% | New | 60 | $7K |
| Pinnacle Wealth Planning Services, Inc. | 0.00% | No change | 58 | $7K |
| Larson Financial Group LLC | 0.00% | Add +147.8% | 57 | $7K |
| Brown Brothers Harriman & Co. | 0.00% | Add +161.9% | 55 | $6K |
| Sachetta, LLC | 0.00% | No change | 54 | $6K |
| Fortitude Family Office, LLC | 0.00% | Add +420.0% | 52 | $6K |
| Rothschild Investment LLC | 0.00% | Add +213.3% | 47 | $5K |
| Basecamp Wealth Advisors LLC | 0.00% | Add +12.5% | 45 | $5K |
| Assetmark, Inc. | 0.00% | Add +12.8% | 44 | $5K |
| Private Wealth Management Group, LLC | 0.00% | No change | 36 | $4K |
| Purpose Unlimited Inc. | 0.00% | New | 34 | $4K |
| Transce3nd, LLC | 0.03% | Reduce -53.5% | 33 | $4K |
| Harbour Investments, Inc. | 0.00% | Reduce -13.5% | 32 | $4K |
| Bruce G. Allen Investments, LLC | 0.00% | No change | 31 | $4K |
| Keating Financial Advisory Services, Inc. | 0.00% | Add +2900.0% | 30 | $4K |
| JFS Wealth Advisors, LLC | 0.00% | Add +114.3% | 30 | $4K |
| Farmers & Merchants Investments Inc. | 0.00% | No change | 30 | $4K |
| True Wealth Design, LLC | 0.00% | Add +50.0% | 27 | $3K |
| First Horizon Corp. | 0.00% | No change | 24 | $3K |
| CoreCap Advisors, LLC | 0.00% | No change | 24 | $3K |
| Peterson Wealth Services | 0.00% | No change | 23 | $3K |
| SJS Investment Consulting Inc. | 0.00% | New | 22 | $3K |
| Manchester Capital Management LLC | 0.00% | No change | 21 | $2K |
| AdvisorNet Financial, Inc | 0.00% | No change | 19 | $2K |
| SouthState Bank Corp | 0.00% | Add +125.0% | 18 | $2K |
| Clearstead Advisors, LLC | 0.00% | Reduce -83.5% | 18 | $2K |
| Ogorek Anthony Joseph /NY/ | 0.00% | No change | 18 | $2K |
| Wilkerson Advisory Group LLC | 0.00% | New | 16 | $2K |
| Atlas Capital Advisors Inc. | 0.00% | New | 14 | $2K |
| Torren Management, LLC | 0.00% | Reduce -61.8% | 13 | $2K |
| Rialto Wealth Management, LLC | 0.00% | Add +71.4% | 12 | $1K |
| Bay Harbor Wealth Management, LLC | 0.00% | Add +500.0% | 12 | $1K |
| Raffa Wealth Management, LLC | 0.00% | Add +11.1% | 10 | $1K |
| Steward Partners Investment Advisory, LLC | 0.00% | Reduce -58.3% | 10 | $1K |
| DiNuzzo Private Wealth, Inc. | 0.00% | Add +350.0% | 9 | $1K |
| Essential Partners LLC | 0.00% | New | 9 | $1K |
| Creative Financial Designs Inc. | 0.00% | New | 9 | $1K |
| Avion Wealth | 0.00% | No change | 14 | $1K |
| Penserra Capital Management LLC | 0.00% | No change | 9 | $1K |
| Principia Wealth Advisory, LLC | 0.00% | No change | 8 | $935 |
| Picton Mahoney Asset Management | 0.00% | No change | 8 | $935 |
| Elevation Wealth Partners, LLC | 0.00% | New | 7 | $818 |
| American Capital Advisory, LLC | 0.00% | No change | 7 | $818 |
| Vermillion Wealth Management, Inc. | 0.00% | New | 6 | $701 |
| HFM Investment Advisors, LLC | 0.00% | Add +500.0% | 6 | $701 |
| MV Capital Management, Inc. | 0.00% | Add +20.0% | 6 | $701 |
| SWAN Capital LLC | 0.00% | No change | 5 | $584 |
| Cromwell Holdings LLC | 0.00% | No change | 4 | $467 |
| Twin Peaks Wealth Advisors, LLC | 0.00% | New | 4 | $467 |
| Arlington Trust Co LLC | 0.00% | New | 4 | $467 |
| Dunhill Financial, LLC | 0.00% | Add +200.0% | 3 | $434 |
| Investors Portfolio Services LLC | 0.00% | New | 4 | $376 |
| TopTier Wealth Management, LLC | 0.00% | New | 3 | $350 |
| Curio Wealth, LLC | 0.00% | New | 2 | $234 |
| Northwestern Mutual Wealth Management Co. | 0.00% | New | 2 | $234 |
| IFP Advisors, Inc | 0.00% | Reduce -95.0% | 2 | $234 |
| SBI Securities Co., Ltd. | 0.00% | Add +100.0% | 2 | $234 |
| Activest Wealth Management | 0.00% | New | 2 | $234 |
| Hughes Financial Services, LLC | 0.00% | Add +100.0% | 2 | $234 |
| Valued Wealth Advisors LLC | 0.00% | No change | 1 | $121 |
| 3 Factor Indexing, LLC | 0.00% | — | 1 | $117 |
| Bartlett & Co. Wealth Management LLC | 0.00% | New | 1 | $115 |
"% of holder's portfolio" is WLK's weight in each manager's 13F, not the share of Westlake Corp. the manager owns.