WestlakeWLK
13F holders, Q4 2025 (December 31)298holders −7
51new positions
64sold out
6famous investors
$73.96avg. 13F price*
At the end of Q4 2025, 298 institutions reported holding Westlake Corp. (WLK) in their 13F filings, down 7 from Q3 2025. 51 opened new positions and 64 sold out. The largest holders were Orbis Allan Gray Ltd ($324.3M), Wellington Management Group LLP ($312.1M) and Vanguard Group Inc. ($289.6M). 6 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Westlake Corp.
- CUSIP
- 960413102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 51 | $259.9M |
| Exits | 64 | $221.9M |
All 13F filers, Q3 2025 → Q4 2025: 12,546,722 shares bought and 7,954,847 shares sold, net +4,591,875 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 298 holders
| Orbis Allan Gray Ltd | 1.36% | Add +12.1% | 4,386,635 | $324.3M |
| Wellington Management Group LLP | 0.05% | Add +7239.1% | 4,220,717 | $312.1M |
| Vanguard Group Inc. | 0.00% | Add +13.9% | 3,917,329 | $289.6M |
| BlackRock, Inc. | 0.00% | Add +2.4% | 3,261,433 | $241.2M |
| T. Rowe Price Associates Inc. | 0.02% | Add +0.0% | 2,208,715 | $163.3M |
| Capital World Investors | 0.02% | New | 2,171,324 | $160.5M |
| Dimensional Fund Advisors LP | 0.03% | Add +45.0% | 1,885,678 | $139.4M |
| Brandes Investment Partners, LP | 0.94% | Add +7.8% | 1,670,327 | $123.5M |
| State Street Corp. | 0.00% | Add +7.8% | 1,396,633 | $103.3M |
| Holocene Advisors, LP | 0.19% | Add +42.9% | 1,220,622 | $90.3M |
| Victory Capital Management Inc. | 0.05% | Reduce -61.1% | 1,113,819 | $82.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Add +0.8% | 924,704 | $68.4M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.10% | Add +2.4% | 876,885 | $64.8M |
| Morgan Stanley | 0.00% | Reduce -6.9% | 759,623 | $56.2M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -28.3% | 753,953 | $55.7M |
| Jacobs Levy Equity Management, Inc. | 0.19% | Reduce -22.3% | 668,405 | $49.4M |
| Nuveen, LLC | 0.01% | Reduce -4.9% | 652,909 | $48.3M |
| UBS Group AG | 0.01% | Add +15.6% | 648,012 | $47.9M |
| Woodline Partners LP | 0.18% | Add +224.2% | 628,159 | $46.4M |
| Geode Capital Management, LLC | 0.00% | Reduce -8.9% | 594,922 | $44.0M |
| Thompson Siegel & Walmsley LLC | 0.67% | Add +21.5% | 536,290 | $39.7M |
| Allspring Global Investments Holdings, LLC | 0.06% | Reduce -7.2% | 506,756 | $37.6M |
| D. E. Shaw & Co. | 0.03% | Add +203.9% | 486,281 | $36.0M |
| ProShare Advisors LLC | 0.06% | Add +3.0% | 435,261 | $32.2M |
| Millennium Management | 0.02% | Add +302.3% | 427,754 | $31.6M |
| Erste Asset Management GmbH | 0.26% | Add +61.5% | 420,000 | $31.1M |
| ANTIPODES PARTNERS Ltd | 0.65% | Reduce -25.1% | 416,520 | $30.8M |
| Merewether Investment Management, LP | 0.66% | Add +44.6% | 388,100 | $28.7M |
| Voloridge Investment Management, LLC | 0.09% | Reduce -11.5% | 348,953 | $25.8M |
| Janus Henderson Group PLC | 0.01% | Reduce -8.6% | 334,593 | $24.7M |
| New York State Common Retirement Fund | 0.03% | No change | 309,626 | $22.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +8.9% | 297,248 | $22.0M |
| Engineers Gate Manager LP | 0.25% | New | 289,255 | $21.4M |
| Northern Trust Corp. | 0.00% | Add +12.8% | 268,634 | $19.9M |
| Robotti Robert | 3.40% | Add +40.9% | 256,244 | $18.9M |
| Van Lanschot Kempen Investment Management N.V. | 0.15% | Add +20.3% | 235,919 | $17.4M |
| Ceredex Value Advisors LLC | 0.52% | New | 235,618 | $17.4M |
| FMR LLC | 0.00% | Reduce -27.2% | 228,843 | $16.9M |
| Invesco Ltd. | 0.00% | Add +58.3% | 213,157 | $15.8M |
| Deprince Race & Zollo Inc. | 0.29% | Add +8.1% | 204,226 | $15.1M |
| Citadel Advisors | 0.01% | Reduce -83.1% | 203,303 | $15.0M |
| Two Sigma Investments, LP | 0.02% | Add +92.7% | 198,379 | $14.7M |
| Diamond Hill Capital Management, LLC (Investment Advisor) | 0.07% | New | 190,180 | $14.1M |
| Bank of America Corp. | 0.00% | Reduce -11.7% | 184,435 | $13.6M |
| Norges Bank | 0.00% | — | 181,328 | $13.4M |
| Bank of New York Mellon Corp | 0.00% | Reduce -2.1% | 174,318 | $12.9M |
| Teachers Retirement System of the State of Kentucky | 0.09% | No change | 165,315 | $12.2M |
| Russell Investments Group, Ltd. | 0.01% | Reduce -14.3% | 158,321 | $11.7M |
| ExodusPoint Capital Management, LP | 0.13% | New | 154,391 | $11.4M |
| First Trust Advisors LP | 0.01% | Reduce -11.2% | 146,411 | $10.8M |
| Two Sigma Advisers, LP | 0.02% | Add +96.3% | 144,700 | $10.7M |
| Sprott Inc. | 0.37% | Add +7.7% | 140,000 | $10.4M |
| Cerity Partners LLC | 0.01% | Add +53.0% | 127,095 | $9.4M |
| Quantinno Capital Management LP | 0.02% | Add +78.4% | 116,366 | $8.6M |
| Thomist Capital Management, LP | 2.28% | Add +142.2% | 111,900 | $8.4M |
| Federated Hermes, Inc. | 0.01% | Add +3456.6% | 107,730 | $8.0M |
| Alyeska Investment Group, L.P. | 0.02% | Reduce -14.1% | 103,041 | $7.6M |
| BNP Paribas Financial Markets | 0.00% | Reduce -51.7% | 92,223 | $6.8M |
| Wells Fargo & Company | 0.00% | Reduce -5.4% | 91,879 | $6.8M |
| Natixis | 0.03% | New | 87,872 | $6.5M |
| Rhumbline Advisers | 0.01% | Reduce -3.9% | 85,432 | $6.3M |
| Royal Bank of Canada | 0.00% | Reduce -77.7% | 85,270 | $6.3M |
| Swiss National Bank | 0.00% | New | 75,900 | $5.6M |
| Recurrent Investment Advisors LLC | 0.41% | Add +317.7% | 75,633 | $5.6M |
| Select Equity Group, L.P. | 0.03% | New | 74,997 | $5.5M |
| Lazard Asset Management LLC | 0.01% | Add +2.5% | 74,428 | $5.5M |
| Agman Capital LLC | 4.55% | — | 72,283 | $5.3M |
| Principal Financial Group Inc. | 0.00% | Reduce -3.2% | 71,719 | $5.3M |
| Alliancebernstein L.P. | 0.00% | Add +2.5% | 68,448 | $5.1M |
| JPMorgan Chase & Co. | 0.00% | Reduce -57.3% | 67,320 | $5.0M |
| Barclays PLC | 0.00% | Reduce -34.5% | 66,613 | $4.9M |
| PDT Partners, LLC | 0.31% | Add +232.9% | 64,977 | $4.8M |
| Jain Global LLC | 0.05% | Add +399.7% | 62,043 | $4.6M |
| Legal & General Group Plc | 0.00% | Add +56.3% | 57,251 | $4.2M |
| HITE Hedge Asset Management LLC | 0.25% | Reduce -47.9% | 52,153 | $3.9M |
| Corient Private Wealth LP | 0.01% | Add +53.6% | 50,715 | $3.7M |
| Ameriprise Financial Inc. | 0.00% | Reduce -41.8% | 49,117 | $3.6M |
| Walleye Capital LLC | 0.02% | Reduce -67.9% | 47,657 | $3.5M |
| California Public Employees Retirement System | 0.00% | Reduce -0.1% | 46,760 | $3.5M |
| Wedge Capital Management L L P | 0.06% | Add +8.8% | 42,841 | $3.2M |
| Retirement Systems of Alabama | 0.01% | Reduce -0.7% | 40,027 | $3.0M |
| Quantbot Technologies LP | 0.10% | Reduce -30.3% | 39,607 | $2.9M |
| SG Americas Securities, LLC | 0.00% | Add +433.4% | 37,011 | $2.7M |
| California State Teachers Retirement System | 0.00% | Add +1628.0% | 36,098 | $2.7M |
| VARCOV Co. | 1.04% | — | 35,597 | $2.6M |
| Luminus Management LLC | 2.40% | New | 35,189 | $2.6M |
| Manufacturers Life Insurance Company, The | 0.00% | Add +19.1% | 33,451 | $2.5M |
| Hudson Bay Capital Management LP | 0.01% | Add +770.8% | 30,443 | $2.3M |
| Comerica Bank | 0.01% | Add +0.8% | 28,483 | $2.1M |
| Sei Investments Co. | 0.00% | Add +92.6% | 28,442 | $2.1M |
| Envestnet Asset Management Inc. | 0.00% | Add +1.5% | 27,870 | $2.1M |
| Aventail Capital Group, LP | 0.12% | Reduce -64.6% | 27,764 | $2.1M |
| Citigroup Inc. | 0.00% | Reduce -76.7% | 27,337 | $2.0M |
| Bank of Montreal | 0.00% | Reduce -40.4% | 26,923 | $2.0M |
| Verition Fund Management LLC | 0.01% | Reduce -4.0% | 26,078 | $1.9M |
| State of Wisconsin Investment Board | 0.00% | New | 25,711 | $1.9M |
| Occudo Quantitative Strategies LP | 0.12% | Reduce -8.1% | 25,180 | $1.9M |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 24,115 | $1.8M |
| Susquehanna International Group, LLP | 0.00% | Add +169.1% | 23,801 | $1.8M |
| AMG National Trust Bank | 0.04% | New | 23,330 | $1.7M |
"% of holder's portfolio" is WLK's weight in each manager's 13F, not the share of Westlake Corp. the manager owns.