WestlakeWLK
13F holders, Q2 2025 (June 30)At the end of Q2 2025, 305 institutions reported holding Westlake Corp. (WLK) in their 13F filings, down 56 from Q1 2025. 44 opened new positions and 96 sold out. The largest holders were Victory Capital Management Inc. ($282.6M), Vanguard Group Inc. ($267.5M) and BlackRock, Inc. ($252.7M). 7 famous investors held it, including Israel Englander (0.1% of Millennium Management's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Westlake Corp.
- CUSIP
- 960413102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 44 | $148.2M |
| Exits | 96 | $227.3M |
All 13F filers, Q1 2025 → Q2 2025: 10,145,910 shares bought and 7,150,936 shares sold, net +2,994,974 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 305 holders
| Victory Capital Management Inc. | 0.18% | Reduce -4.6% | 3,721,742 | $282.6M |
| Vanguard Group Inc. | 0.00% | Reduce -0.8% | 3,522,810 | $267.5M |
| BlackRock, Inc. | 0.00% | Reduce -9.1% | 3,328,696 | $252.7M |
| T. Rowe Price Associates Inc. | 0.02% | Add +9618.1% | 2,058,588 | $156.3M |
| FMR LLC | 0.01% | Add +4.3% | 1,615,238 | $122.6M |
| Brandes Investment Partners, LP | 1.00% | Add +246.0% | 1,456,871 | $110.6M |
| State Street Corp. | 0.00% | Reduce -14.6% | 1,392,227 | $105.7M |
| Norges Bank | 0.01% | Add +272.4% | 1,373,816 | $104.3M |
| Dimensional Fund Advisors LP | 0.02% | Add +35.7% | 1,275,169 | $96.8M |
| Goldman Sachs Group Inc. | 0.01% | Add +1.7% | 1,058,943 | $80.4M |
| Jacobs Levy Equity Management, Inc. | 0.29% | Add +27.0% | 985,258 | $74.8M |
| Nuveen, LLC | 0.02% | Add +21.5% | 886,128 | $67.3M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.13% | Reduce -1.1% | 844,130 | $64.1M |
| ANTIPODES PARTNERS Ltd | 1.94% | New | 823,169 | $62.5M |
| Millennium Management | 0.06% | Reduce -12.4% | 789,846 | $60.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Add +75.6% | 651,826 | $49.5M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.4% | 574,231 | $43.6M |
| Allspring Global Investments Holdings, LLC | 0.07% | Reduce -5.6% | 520,737 | $41.9M |
| Voloridge Investment Management, LLC | 0.15% | Add +49.9% | 520,256 | $39.5M |
| Morgan Stanley | 0.00% | Add +76.2% | 462,488 | $35.1M |
| UBS Group AG | 0.01% | Reduce -27.2% | 443,467 | $33.7M |
| ProShare Advisors LLC | 0.05% | Add +36.4% | 355,154 | $27.0M |
| Engineers Gate Manager LP | 0.33% | Add +12724.7% | 351,011 | $26.7M |
| D. E. Shaw & Co. | 0.03% | Add +50.2% | 342,960 | $26.0M |
| Susquehanna International Group, LLP | 0.04% | Add +2884.6% | 330,814 | $25.1M |
| Woodline Partners LP | 0.13% | New | 327,290 | $24.9M |
| New York State Common Retirement Fund | 0.03% | Add +2092.7% | 306,426 | $23.3M |
| Arrowstreet Capital, Limited Partnership | 0.02% | New | 290,038 | $22.0M |
| Ilex Capital Partners (UK) LLP | 0.69% | Reduce -60.9% | 273,564 | $20.8M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +5.0% | 256,845 | $19.5M |
| Deprince Race & Zollo Inc. | 0.40% | Add +9.9% | 253,370 | $19.2M |
| Schroder Investment Management Group | 0.02% | Reduce -0.2% | 248,981 | $18.9M |
| Alyeska Investment Group, L.P. | 0.06% | Add +23.5% | 238,128 | $18.1M |
| Northern Trust Corp. | 0.00% | Reduce -25.9% | 232,962 | $17.7M |
| Bank of Montreal | 0.01% | Add +9.9% | 231,022 | $17.5M |
| Royal Bank of Canada | 0.00% | Add +464.8% | 218,492 | $16.6M |
| Janus Henderson Group PLC | 0.01% | Reduce -45.7% | 214,281 | $16.3M |
| BNP Paribas Financial Markets | 0.01% | Add +603.4% | 185,397 | $14.1M |
| Bank of New York Mellon Corp | 0.00% | Reduce -16.1% | 184,312 | $14.0M |
| Van Lanschot Kempen Investment Management N.V. | 0.13% | New | 182,899 | $13.9M |
| Robotti Robert | 2.31% | Add +11.0% | 182,840 | $13.8M |
| Erste Asset Management GmbH | 0.11% | Add +11.9% | 171,501 | $13.0M |
| JPMorgan Chase & Co. | 0.00% | Add +29.9% | 167,595 | $12.7M |
| Two Sigma Advisers, LP | 0.02% | Reduce -4.6% | 158,500 | $12.0M |
| Holocene Advisors, LP | 0.03% | Add +59.6% | 158,155 | $12.0M |
| Renaissance Technologies | 0.01% | Reduce -48.5% | 144,200 | $10.9M |
| 1832 Asset Management L.P. | 0.02% | Reduce -9.6% | 138,920 | $10.5M |
| Bank of America Corp. | 0.00% | Reduce -37.4% | 138,654 | $10.5M |
| Qube Research & Technologies Ltd | 0.01% | Add +16.2% | 134,571 | $10.2M |
| Wedge Capital Management L L P | 0.18% | Add +39.9% | 132,401 | $10.1M |
| AQR Capital Management | 0.01% | Add +598.4% | 133,355 | $10.0M |
| Russell Investments Group, Ltd. | 0.01% | Add +10.8% | 129,166 | $9.8M |
| First Trust Advisors LP | 0.01% | Reduce -23.2% | 127,929 | $9.7M |
| Sprott Inc. | 0.47% | Add +38.9% | 125,000 | $9.5M |
| Invesco Ltd. | 0.00% | Reduce -7.3% | 124,564 | $9.5M |
| Man Group plc | 0.02% | Reduce -11.9% | 124,176 | $9.4M |
| Two Sigma Investments, LP | 0.02% | Reduce -54.1% | 122,115 | $9.3M |
| HITE Hedge Asset Management LLC | 0.50% | Add +60.2% | 114,487 | $8.7M |
| Walleye Capital LLC | 0.09% | Add +226.4% | 112,198 | $8.5M |
| ING Groep NV | 0.05% | Add +276.4% | 111,400 | $8.5M |
| Teachers Retirement System of the State of Kentucky | 0.06% | Add +796.4% | 105,015 | $8.0M |
| Janney Montgomery Scott LLC | 0.02% | Add +65.2% | 100,968 | $7.7M |
| Ameriprise Financial Inc. | 0.00% | Reduce -16.3% | 99,534 | $7.6M |
| Squarepoint Ops LLC | 0.02% | Reduce -59.3% | 94,483 | $7.2M |
| Dark Forest Capital Management LP | 0.28% | Add +929.0% | 92,491 | $7.0M |
| Rhumbline Advisers | 0.01% | Reduce -9.8% | 90,628 | $6.9M |
| ExodusPoint Capital Management, LP | 0.08% | Reduce -78.3% | 90,578 | $6.9M |
| Cerity Partners LLC | 0.01% | Add +15.8% | 86,793 | $6.6M |
| Storebrand Asset Management As | 0.02% | Reduce -19.3% | 86,152 | $6.5M |
| Wells Fargo & Company | 0.00% | Add +39.6% | 85,434 | $6.5M |
| Balyasny Asset Management L.P. | 0.01% | Reduce -84.7% | 79,847 | $6.1M |
| Principal Financial Group Inc. | 0.00% | Reduce -1.8% | 75,606 | $5.7M |
| Amundi | 0.00% | Add +37.2% | 69,671 | $5.7M |
| Legal & General Group Plc | 0.00% | Reduce -48.2% | 75,079 | $5.7M |
| Lazard Asset Management LLC | 0.01% | Reduce -33.6% | 74,072 | $5.6M |
| Citigroup Inc. | 0.00% | Add +157.1% | 72,626 | $5.5M |
| Thomist Capital Management, LP | 3.29% | Add +55.3% | 71,600 | $5.5M |
| Barclays PLC | 0.00% | Reduce -33.5% | 71,039 | $5.4M |
| Alliancebernstein L.P. | 0.00% | Add +0.2% | 68,613 | $5.2M |
| California Public Employees Retirement System | 0.00% | Add +1.8% | 59,872 | $4.5M |
| SG Americas Securities, LLC | 0.02% | Reduce -5.3% | 54,505 | $4.1M |
| JCP Investment Management, LLC | 2.32% | New | 53,000 | $4.0M |
| Concentric Capital Strategies, LP | 0.23% | New | 52,887 | $4.0M |
| Canada Pension Plan Investment Board | 0.00% | Add +25.4% | 49,344 | $3.7M |
| KBC Group NV | 0.01% | Add +79.9% | 48,014 | $3.6M |
| Journey Advisory Group, LLC | 0.27% | New | 44,842 | $3.4M |
| Verition Fund Management LLC | 0.02% | Reduce -18.6% | 41,923 | $3.2M |
| Retirement Systems of Alabama | 0.01% | Add +0.1% | 40,751 | $3.1M |
| Jane Street Group, LLC | 0.00% | Reduce -60.0% | 34,357 | $2.6M |
| Comerica Bank | 0.01% | Add +12.1% | 34,333 | $2.6M |
| Y-Intercept (Hong Kong) Ltd | 0.06% | New | 32,522 | $2.5M |
| Quantinno Capital Management LP | 0.01% | Reduce -76.3% | 30,231 | $2.3M |
| Twin Tree Management, LP | 0.06% | New | 29,360 | $2.2M |
| Manufacturers Life Insurance Company, The | 0.00% | Add +0.6% | 28,134 | $2.1M |
| State of Alaska, Department of Revenue | 0.02% | Reduce -0.7% | 27,678 | $2.1M |
| Brevan Howard Capital Management LP | 0.02% | Add +65.4% | 26,812 | $2.0M |
| State of Wisconsin Investment Board | 0.00% | Add +1.4% | 26,000 | $2.0M |
| HSBC Holdings PLC | 0.00% | Add +142.8% | 25,833 | $2.0M |
| Northeast Financial Consultants Inc | 0.08% | New | 24,800 | $1.9M |
| State Board of Administration of Florida Retirement System | 0.00% | Reduce -11.9% | 24,650 | $1.9M |
| Sei Investments Co. | 0.00% | Add +161.7% | 22,746 | $1.7M |
| Knights of Columbus Asset Advisors LLC | 0.10% | No change | 22,364 | $1.7M |
| South Dakota Investment Council | 0.03% | No change | 22,135 | $1.7M |
| LPL Financial LLC | 0.00% | Reduce -30.1% | 21,273 | $1.6M |
| Manning & Napier Advisors LLC | 0.02% | Reduce -21.0% | 20,684 | $1.6M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -23.1% | 20,396 | $1.5M |
| Dana Investment Advisors, Inc. | 0.05% | Reduce -0.9% | 19,783 | $1.5M |
| Recurrent Investment Advisors LLC | 0.11% | Add +0.0% | 18,104 | $1.4M |
| American Century Companies Inc. | 0.00% | Reduce -20.3% | 18,056 | $1.4M |
| APG Asset Management N.V. | 0.00% | Add +8.8% | 21,100 | $1.4M |
| MetLife Investment Management, LLC | 0.01% | Reduce -3.4% | 17,954 | $1.4M |
| Mutual of America Capital Management LLC | 0.01% | Reduce -3.7% | 16,581 | $1.3M |
| Treasurer of the State of North Carolina | 0.00% | Add +1.7% | 15,608 | $1.2M |
| Royal London Asset Management Ltd. | 0.00% | Reduce -2.9% | 15,513 | $1.2M |
| Amalgamated Bank | 0.01% | Reduce -2.2% | 15,238 | $1.2M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -41.6% | 15,207 | $1.2M |
| Occudo Quantitative Strategies LP | 0.13% | Add +300.4% | 15,125 | $1.1M |
| Faithward Advisors, LLC | 0.17% | Add +7.8% | 14,265 | $1.1M |
| Polymer Capital Management (US) LLC | 0.17% | Add +232.0% | 14,060 | $1.1M |
| Stifel Financial Corp. | 0.00% | Add +72.2% | 12,357 | $938K |
| Citadel Advisors | 0.00% | Reduce -98.6% | 12,306 | $934K |
| Gotham Asset Management | 0.01% | Add +122.3% | 12,076 | $917K |
| Yousif Capital Management, LLC | 0.01% | Reduce -2.3% | 11,868 | $901K |
| Graham Capital Management, L.P. | 0.03% | Reduce -68.2% | 11,704 | $889K |
| Ameritas Investment Partners, Inc. | 0.03% | Reduce -0.9% | 11,574 | $879K |
| GAMCO Investors | 0.01% | New | 11,566 | $878K |
| Quadrature Capital Ltd | 0.01% | Add +395.7% | 11,392 | $865K |
| OMERS ADMINISTRATION Corp | 0.01% | New | 11,380 | $864K |
| Creative Planning | 0.00% | Add +39.3% | 11,165 | $848K |
| Schonfeld Strategic Advisors LLC | 0.01% | Reduce -43.4% | 10,889 | $827K |
| Public Employees Retirement System of Ohio | 0.00% | Add +0.5% | 10,373 | $788K |
| Aberdeen Group plc | 0.00% | Add +1.0% | 10,098 | $767K |
| Vanguard Personalized Indexing Management, LLC | 0.01% | Add +21.5% | 10,045 | $763K |
| Sumitomo Mitsui Trust Group, Inc. | 0.00% | Reduce -87.6% | 9,817 | $745K |
| Louisiana State Employees Retirement System | 0.01% | No change | 9,400 | $714K |
| XTX Topco Ltd | 0.03% | Reduce -37.5% | 9,377 | $712K |
| Pathstone Holdings, LLC | 0.00% | Add +30.6% | 9,002 | $684K |
| Corient Private Wealth LP | 0.00% | Reduce -23.3% | 8,965 | $681K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Add +215.9% | 8,896 | $675K |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | Reduce -71.5% | 8,800 | $668K |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.00% | Add +7.1% | 8,567 | $650K |
| Handelsbanken Fonder AB | 0.00% | Reduce -1.2% | 8,500 | $645K |
| Marshall Wace, LLP | 0.00% | New | 8,111 | $616K |
| State of Michigan Retirement System | 0.00% | Reduce -11.1% | 8,000 | $607K |
| Quadrant Capital Group LLC | 0.02% | Add +198.6% | 7,943 | $603K |
| Thrivent Financial for Lutherans | 0.00% | Add +0.1% | 7,850 | $596K |
| FORA Capital, LLC | 0.07% | New | 7,832 | $595K |
| CI Investments Inc. | 0.00% | Add +4592.1% | 7,695 | $584K |
| Entropy Technologies, LP | 0.05% | Add +76.8% | 7,655 | $581K |
| Advisors Asset Management, Inc. | 0.01% | Add +0.3% | 7,647 | $581K |
| Northwestern Mutual Investment Management Company, LLC | 0.01% | Add +0.1% | 7,444 | $565K |
| Magnetar Financial LLC | 0.00% | Reduce -73.7% | 7,187 | $546K |
| Nebula Research & Development LLC | 0.05% | New | 7,169 | $544K |
| New Mexico Educational Retirement Board | 0.02% | No change | 7,000 | $532K |
| RiverFront Investment Group, LLC | 0.01% | No change | 6,972 | $529K |
| First Eagle Investment Management, LLC | 0.00% | Add +13.1% | 6,885 | $523K |
| Oregon Public Employees Retirement Fund | 0.01% | No change | 6,868 | $521K |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Reduce -77.3% | 6,738 | $512K |
| Pettee Investors, Inc. | 0.30% | No change | 6,711 | $510K |
| Landscape Capital Management, L.L.C. | 0.04% | New | 6,646 | $505K |
| NorthCoast Asset Management LLC | 0.00% | Reduce -60.6% | 5,776 | $439K |
| Total Wealth Planning & Management, Inc. | 0.37% | Add +40.9% | 5,586 | $424K |
| Neo Ivy Capital Management | 0.13% | New | 5,318 | $404K |
| Raymond James Financial Inc. | 0.00% | Reduce -95.3% | 5,298 | $402K |
| Mercer Global Advisors Inc. | 0.00% | Reduce -41.7% | 5,270 | $400K |
| New York State Teachers Retirement System | 0.00% | Reduce -33.9% | 5,225 | $397K |
| Unison Advisors LLC | 0.04% | Add +0.6% | 5,146 | $391K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Add +4.1% | 5,020 | $381K |
| State of Tennessee, Department of Treasury | 0.00% | Reduce -3.8% | 5,013 | $381K |
| Sequent Planning LLC | 0.12% | Reduce -1.4% | 4,912 | $373K |
| Quantessence Capital LLC | 0.11% | New | 4,908 | $373K |
| Xponance LLC | 0.00% | Reduce -29.2% | 4,795 | $364K |
| Summit Trail Advisors, LLC | 0.01% | New | 4,508 | $342K |
| CIBC Asset Management Inc | 0.00% | Add +0.2% | 4,370 | $332K |
| Cetera Investment Advisers | 0.00% | Add +43.6% | 4,350 | $330K |
| QRG Capital Management, Inc. | 0.00% | Reduce -50.4% | 4,307 | $327K |
| Captrust Financial Advisors | 0.00% | Add +28.0% | 4,129 | $314K |
| Greenland Capital Management LP | 0.04% | New | 4,008 | $304K |
| Catalyst Funds Management Pty Ltd | 0.08% | Add +50.2% | 3,905 | $297K |
| LMR Partners LLP | 0.01% | New | 3,861 | $293K |
| Centiva Capital, LP | 0.02% | Reduce -78.0% | 3,851 | $292K |
| Vident Advisory, LLC | 0.00% | Reduce -61.3% | 3,813 | $290K |
| Prudential Financial Inc. | 0.00% | Add +18.1% | 3,788 | $288K |
| Voya Investment Management LLC | 0.00% | Reduce -11.3% | 3,715 | $282K |
| Inspire Investing, LLC | 0.03% | Add +17.7% | 3,697 | $281K |
| DekaBank Deutsche Girozentrale | 0.00% | Add +0.6% | 3,540 | $270K |
| Empowered Funds, LLC | 0.00% | New | 3,449 | $262K |
| Osaic Holdings, Inc. | 0.00% | Add +36.7% | 3,417 | $262K |
| Applied Finance Capital Management, LLC | 0.02% | Add +1.4% | 3,277 | $249K |
| Capula Management Ltd | 0.00% | New | 3,167 | $240K |
| Claret Asset Management Corp | 0.03% | New | 3,057 | $232K |
| Atria Investments, Inc | 0.00% | New | 2,999 | $228K |
| Mfa Wealth Advisors, LLC | 0.05% | Add +32.9% | 2,886 | $219K |
| Crossmark Global Holdings, Inc. | 0.00% | Reduce -0.7% | 2,712 | $206K |
| Avanza Fonder AB | 0.01% | No change | 2,680 | $203K |
| US Bancorp \de | 0.00% | Add +14.4% | 2,625 | $199K |
| Transce3nd, LLC | 0.08% | Reduce -50.0% | 2,498 | $190K |
| Securian Asset Management, Inc. | 0.01% | No change | 2,503 | $190K |
| Tower Research Capital LLC (TRC) | 0.01% | Add +125.1% | 2,492 | $189K |
| ASR Vermogensbeheer N.V. | 0.00% | Reduce -0.5% | 2,477 | $188K |
| Sterling Capital Management LLC | 0.00% | Reduce -74.0% | 2,276 | $173K |
| California State Teachers Retirement System | 0.00% | Reduce -95.4% | 2,087 | $158K |
| Farther Finance Advisors, LLC | 0.00% | Add +1840.4% | 1,921 | $146K |
| Public Employees Retirement Association of Colorado | 0.00% | Reduce -53.3% | 1,704 | $129K |
| Deutsche Bank AG | 0.00% | Reduce -95.3% | 1,561 | $119K |
| Kimelman & Baird, LLC | 0.01% | No change | 1,500 | $114K |
| PNC Financial Services Group, Inc. | 0.00% | Add +11.8% | 1,433 | $109K |
| CoreFirst Bank & Trust | 0.06% | New | 1,420 | $108K |
| Allworth Financial LP | 0.00% | Add +52.8% | 1,409 | $107K |
| MAI Capital Management | 0.00% | Add +2.9% | 1,348 | $102K |
| Federated Hermes, Inc. | 0.00% | Reduce -58.8% | 1,307 | $99K |
| Brooklyn Investment Group | 0.01% | Add +91.5% | 1,151 | $87K |
| Itau Unibanco Holding S.A. | 0.00% | Add +87.3% | 1,000 | $76K |
| Wahed Invest LLC | 0.01% | Add +3.2% | 907 | $69K |
| Nomura Asset Management Co. Ltd. | 0.00% | Reduce -91.6% | 896 | $68K |
| STRS Ohio | 0.00% | New | 799 | $61K |
| Covestor Ltd | 0.03% | Add +609.4% | 759 | $58K |
| NewEdge Advisors, LLC | 0.00% | Add +49.6% | 745 | $57K |
| AlphaQuest LLC | 0.01% | Add +989.5% | 730 | $55K |
| Signaturefd, LLC | 0.00% | Add +49.9% | 640 | $49K |
| Cwm, LLC | 0.00% | Add +54.5% | 567 | $43K |
| UMB Bank, n.a. | 0.00% | Add +107.0% | 565 | $43K |
| Parallel Advisors, LLC | 0.00% | Reduce -6.3% | 492 | $37K |
| GAMMA Investing LLC | 0.00% | Reduce -16.7% | 445 | $34K |
| Transamerica Financial Advisors, LLC | 0.00% | Reduce -0.2% | 438 | $33K |
| Arcadia Investment Management Corp. | 0.00% | No change | 350 | $27K |
| Huntington National Bank | 0.00% | New | 347 | $26K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +324.0% | 318 | $24K |
| Jones Financial Companies LLLP | 0.00% | Add +18.1% | 300 | $23K |
| Nisa Investment Advisors, LLC | 0.00% | Add +60.2% | 298 | $23K |
| IFP Advisors, Inc | 0.00% | Add +25800.0% | 259 | $22K |
| Fifth Third Bancorp | 0.00% | Reduce -43.8% | 289 | $22K |
| Hantz Financial Services, Inc. | 0.00% | Add +4300.0% | 264 | $20K |
| National Bank of Canada | 0.00% | Reduce -99.1% | 237 | $18K |
| Federation des caisses Desjardins du Quebec | 0.00% | Reduce -67.2% | 190 | $14K |
| Lanark Financial, Inc. | 0.00% | New | 195 | $14K |
| Binnacle Investments Inc | 0.01% | No change | 150 | $11K |
| Spire Wealth Management | 0.00% | New | 145 | $11K |
| Private Wealth Management Group, LLC | 0.00% | Add +125.4% | 142 | $11K |
| Northwestern Mutual Wealth Management Co. | 0.00% | Reduce -91.0% | 140 | $11K |
| MassMutual Private Wealth & Trust, FSB | 0.00% | Add +165.3% | 130 | $10K |
| Arax Advisory Partners | 0.00% | Reduce -40.2% | 113 | $9K |
| First Horizon Advisors, Inc. | 0.00% | Add +38.2% | 105 | $8K |
| Optiver Holding B.V. | 0.00% | New | 96 | $7K |
| Private Trust Co. NA | 0.00% | Reduce -71.5% | 90 | $7K |
| CVA Family Office, LLC | 0.00% | Reduce -57.4% | 83 | $6K |
| Rise Advisors, LLC | 0.00% | Add +1.2% | 83 | $6K |
| Wilmington Savings Fund Society, FSB | 0.00% | No change | 79 | $6K |
| Ameritas Advisory Services, LLC | 0.00% | New | 78 | $6K |
| Assetmark, Inc. | 0.00% | Add +25.0% | 75 | $6K |
| Parkside Financial Bank & Trust | 0.00% | Add +100.0% | 74 | $6K |
| Smartleaf Asset Management LLC | 0.00% | Reduce -68.1% | 72 | $5K |
| Deseret Mutual Benefit Administrators | 0.00% | No change | 62 | $5K |
| Natixis | 0.00% | Reduce -75.0% | 62 | $5K |
| Trust Co. of Vermont | 0.00% | No change | 50 | $4K |
| Blue Trust, Inc. | 0.00% | New | 49 | $4K |
| Bruce G. Allen Investments, LLC | 0.00% | Add +38.7% | 43 | $3K |
| TD Waterhouse Canada Inc. | 0.00% | New | 40 | $3K |
| Cetera Trust Company, N.A | 0.00% | No change | 40 | $3K |
| Bessemer Group Inc. | 0.00% | Reduce -71.5% | 43 | $3K |
| Steward Partners Investment Advisory, LLC | 0.00% | No change | 39 | $3K |
| MV Capital Management, Inc. | 0.00% | Add +137.5% | 38 | $3K |
| Koesten, Hirschmann & Crabtree, INC. | 0.00% | New | 33 | $3K |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 0.00% | Reduce -19.4% | 29 | $2K |
| Park Square Financial Group, LLC | 0.00% | No change | 27 | $2K |
| Farmers & Merchants Investments Inc. | 0.00% | Add +17.4% | 27 | $2K |
| Hemington Wealth Management | 0.00% | Reduce -63.5% | 27 | $2K |
| Clearstead Advisors, LLC | 0.00% | New | 25 | $2K |
| Larson Financial Group LLC | 0.00% | Add +4.3% | 24 | $2K |
| Manchester Capital Management LLC | 0.00% | New | 23 | $2K |
| Peterson Wealth Services | 0.00% | Reduce -99.7% | 23 | $2K |
| Principal Securities, Inc. | 0.00% | Add +53.3% | 23 | $2K |
| Versant Capital Management, Inc | 0.00% | Reduce -99.2% | 22 | $2K |
| Fortitude Family Office, LLC | 0.00% | New | 20 | $2K |
| Sachetta, LLC | 0.00% | Add +72.7% | 19 | $1K |
| Global Retirement Partners, LLC | 0.00% | — | 17 | $1K |
| Rothschild Investment LLC | 0.00% | New | 15 | $1K |
| Sound Income Strategies, LLC | 0.00% | No change | 15 | $1K |
| Hughes Financial Services, LLC | 0.00% | New | 14 | $1K |
| Ogorek Anthony Joseph /NY/ | 0.00% | No change | 18 | $1K |
| Avion Wealth | 0.00% | Add +466.7% | 17 | $1K |
| Picton Mahoney Asset Management | 0.00% | No change | 8 | $1K |
| Bellwether Advisors, LLC | 0.00% | No change | 13 | $987 |
| Bell Investment Advisors, Inc | 0.00% | No change | 12 | $912 |
| SouthState Bank Corp | 0.00% | Add +9.1% | 12 | $912 |
| Jackson, Grant Investment Advisers, Inc. | 0.00% | Reduce -90.8% | 11 | $835 |
| Rakuten Securities, Inc. | 0.00% | New | 11 | $835 |
| Raffa Wealth Management, LLC | 0.00% | No change | 9 | $683 |
| Principia Wealth Advisory, LLC | 0.00% | Add +14.3% | 8 | $607 |
| Twin Peaks Wealth Advisors, LLC | 0.00% | New | 7 | $554 |
| Essential Partners LLC | 0.00% | — | 7 | $532 |
| Core Alternative Capital | 0.00% | No change | 7 | $532 |
| True Wealth Design, LLC | 0.00% | Reduce -88.5% | 6 | $456 |
| WealthTrak Capital Management LLC | 0.00% | No change | 5 | $380 |
| SWAN Capital LLC | 0.00% | No change | 5 | $380 |
| CoreCap Advisors, LLC | 0.00% | Reduce -96.9% | 5 | $380 |
| Parkworth Wealth Management, Inc. | 0.00% | Add +100.0% | 4 | $304 |
| JFS Wealth Advisors, LLC | 0.00% | Reduce -92.0% | 4 | $304 |
| DiNuzzo Private Wealth, Inc. | 0.00% | Reduce -60.0% | 4 | $304 |
| Whittier Trust Co. of Nevada Inc. | 0.00% | New | 4 | $300 |
| Elevation Point Wealth Partners, LLC | 0.00% | New | 3 | $228 |
| Valued Wealth Advisors LLC | 0.00% | Reduce -75.0% | 1 | $77 |
| SBI Securities Co., Ltd. | 0.00% | No change | 1 | $76 |
| HFM Investment Advisors, LLC | 0.00% | No change | 1 | $76 |
| Penserra Capital Management LLC | 0.00% | No change | 12 | $0 |
"% of holder's portfolio" is WLK's weight in each manager's 13F, not the share of Westlake Corp. the manager owns.