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, Q2 2025
Institutional positions in Westlake Corp as of Jun 30, 2025. 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
- 306
- −50 vs. Q1 2025
- Shares held
- 39.4M
- +3.00M (+8.3%) vs. Q1 2025
- Total value
- $2.99B
- −$644.8M (−17.7%) vs. Q1 2025
- New holders
- 46
- 125 more added
- Sold out
- 96
- 104 more reduced
5 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ASR Vermogensbeheer N.V. | 2,477 | $188.1K | 0.00% | −13−0.5% | Reduced |
| Sterling Capital Management LLC | 2,276 | $172.8K | 0.00% | −6,466−74.0% | Reduced |
| California State Teachers Retirement System | 2,087 | $158.5K | 0.00% | −43,108−95.4% | Reduced |
| Farther Finance Advisors, LLC | 1,921 | $145.9K | 0.00% | +1,822+1,840.4% | Added |
| Public Employees Retirement Association of Colorado | 1,704 | $129.0K | 0.00% | −1,946−53.3% | Reduced |
| Deutsche Bank AG | 1,561 | $118.5K | 0.00% | −31,669−95.3% | Reduced |
| Kimelman & Baird, LLC | 1,500 | $113.9K | 0.01% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 1,433 | $108.8K | 0.00% | +151+11.8% | Added |
| CoreFirst Bank & Trust | 1,420 | $107.8K | 0.06% | +1,420 | New |
| Allworth Financial LP | 1,409 | $107.0K | 0.00% | +487+52.8% | Added |
| MAI Capital Management | 1,348 | $102.4K | 0.00% | +38+2.9% | Added |
| Federated Hermes, Inc. | 1,307 | $99.2K | 0.00% | −1,862−58.8% | Reduced |
| Skopos Labs, Inc. | 1,151 | $87.4K | 0.01% | +550+91.5% | Added |
| Itau Unibanco Holding S.A. | 1,000 | $75.9K | 0.00% | +466+87.3% | Added |
| Wahed Invest LLC | 907 | $68.9K | 0.01% | +28+3.2% | Added |
| Nomura Asset Management Co Ltd | 896 | $68.0K | 0.00% | −9,740−91.6% | Reduced |
| STRS Ohio | 799 | $60.7K | 0.00% | +799 | New |
| Covestor Ltd | 759 | $58.0K | 0.03% | +652+609.3% | Added |
| GWM Advisors LLC | 745 | $56.5K | 0.00% | +247+49.6% | Added |
| Quest Partners LLC | 730 | $55.4K | 0.01% | +663+989.6% | Added |
| Signaturefd, LLC | 640 | $48.6K | 0.00% | +213+49.9% | Added |
| CWM, LLC | 567 | $43.0K | 0.00% | +200+54.5% | Added |
| Umb Bank N A | 565 | $42.9K | 0.00% | +292+107.0% | Added |
| Parallel Advisors, LLC | 492 | $37.4K | 0.00% | −33−6.3% | Reduced |
| GAMMA Investing LLC | 445 | $33.8K | 0.00% | −89−16.7% | Reduced |
| Transamerica Financial Advisors, Inc. | 438 | $33.2K | 0.00% | −1−0.2% | Reduced |
| Arcadia Investment Management Corp | 350 | $26.6K | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 347 | $26.3K | 0.00% | +347 | New |
| EverSource Wealth Advisors, LLC | 318 | $24.1K | 0.00% | +243+324.0% | Added |
| Jones Financial Companies LLLP | 300 | $22.9K | 0.00% | +46+18.1% | Added |
| Nisa Investment Advisors, LLC | 298 | $22.6K | 0.00% | +112+60.2% | Added |
| IFP Advisors, Inc | 259 | $22.1K | 0.00% | +258+25,800.0% | Added |
| Fifth Third Bancorp | 289 | $21.9K | 0.00% | −225−43.8% | Reduced |
| Hantz Financial Services, Inc. | 264 | $20.0K | 0.00% | +258+4,300.0% | Added |
| National Bank of Canada | 237 | $18.0K | 0.00% | −26,737−99.1% | Reduced |
| Federation des caisses Desjardins du Quebec | 190 | $14.4K | 0.00% | −389−67.2% | Reduced |
| NBC Securities, Inc. | 195 | $14.0K | 0.00% | +195 | New |
| Binnacle Investments Inc | 150 | $11.4K | 0.01% | 00.0% | Unchanged |
| Spire Wealth Management | 145 | $11.0K | 0.00% | +145 | New |
| Private Wealth Management Group, LLC | 142 | $10.8K | 0.00% | +79+125.4% | Added |
| Northwestern Mutual Wealth Management Co | 140 | $10.6K | 0.00% | −1,408−91.0% | Reduced |
| Massmutual Trust Co FSB | 130 | $9.87K | 0.00% | +81+165.3% | Added |
| SRS Capital Advisors, Inc. | 113 | $8.58K | 0.00% | −76−40.2% | Reduced |
| First Horizon Advisors, Inc. | 105 | $7.97K | 0.00% | +29+38.2% | Added |
| Optiver Holding B.V. | 96 | $7.29K | 0.00% | +96 | New |
| Private Trust Co NA | 90 | $6.83K | 0.00% | −226−71.5% | Reduced |
| CVA Family Office, LLC | 83 | $6.30K | 0.00% | −112−57.4% | Reduced |
| Rise Advisors, LLC | 83 | $6.29K | 0.00% | +1+1.2% | Added |
| Bryn Mawr Trust Co | 79 | $6.00K | 0.00% | 00.0% | Unchanged |
| Ameritas Advisory Services, LLC | 78 | $5.92K | 0.00% | +78 | New |
| Assetmark, Inc | 75 | $5.70K | 0.00% | +15+25.0% | Added |
| Parkside Financial Bank & Trust | 74 | $5.62K | 0.00% | +37+100.0% | Added |
| Smartleaf Asset Management LLC | 72 | $5.48K | 0.00% | −154−68.1% | Reduced |
| Natixis | 62 | $4.71K | 0.00% | −186−75.0% | Reduced |
| Deseret Mutual Benefit Administrators | 62 | $4.71K | 0.00% | 00.0% | Unchanged |
| Trust Co of Vermont | 50 | $3.80K | 0.00% | 00.0% | Unchanged |
| Ronald Blue Trust, Inc. | 49 | $3.72K | 0.00% | +49 | New |
| Bruce G. Allen Investments, LLC | 43 | $3.27K | 0.00% | +12+38.7% | Added |
| TD Waterhouse Canada Inc. | 40 | $3.22K | 0.00% | +40 | New |
| Cetera Trust Company, N.A | 40 | $3.04K | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 43 | $3.00K | 0.00% | −108−71.5% | Reduced |
| Steward Partners Investment Advisory, LLC | 39 | $2.96K | 0.00% | 00.0% | Unchanged |
| MV Capital Management, Inc. | 38 | $2.89K | 0.00% | +22+137.5% | Added |
| Koesten, Hirschmann & Crabtree, INC. | 33 | $2.53K | 0.00% | +33 | New |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 29 | $2.20K | 0.00% | −7−19.4% | Reduced |
| Park Square Financial Group, LLC | 27 | $2.05K | 0.00% | 00.0% | Unchanged |
| Farmers & Merchants Investments Inc | 27 | $2.05K | 0.00% | +4+17.4% | Added |
| Hemington Wealth Management | 27 | $2.00K | 0.00% | −47−63.5% | Reduced |
| Clearstead Advisors, LLC | 25 | $1.90K | 0.00% | +25 | New |
| Larson Financial Group LLC | 24 | $1.82K | 0.00% | +1+4.3% | Added |
| Manchester Capital Management LLC | 23 | $1.75K | 0.00% | +23 | New |
| Peterson Wealth Services | 23 | $1.75K | 0.00% | −6,555−99.7% | Reduced |
| Principal Securities, Inc. | 23 | $1.75K | 0.00% | +8+53.3% | Added |
| Versant Capital Management, Inc | 22 | $1.67K | 0.00% | −2,655−99.2% | Reduced |
| Fortitude Family Office, LLC | 20 | $1.52K | 0.00% | +20 | New |
| Sachetta, LLC | 19 | $1.44K | 0.00% | +8+72.7% | Added |
| Global Retirement Partners, LLC | 17 | $1.29K | 0.00% | +17 | New |
| Sound Income Strategies, LLC | 15 | $1.14K | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 15 | $1.14K | 0.00% | +15 | New |
| Hughes Financial Services, LLC | 14 | $1.14K | 0.00% | +14 | New |
| Ogorek Anthony Joseph | 18 | $1.00K | 0.00% | 00.0% | Unchanged |
| Picton Mahoney Asset Management | 8 | $1.00K | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 17 | $1.00K | 0.00% | +14+466.7% | Added |
| Bellwether Advisors, LLC | 13 | $987 | 0.00% | 00.0% | Unchanged |
| Bell Investment Advisors, Inc | 12 | $912 | 0.00% | 00.0% | Unchanged |
| South State Corp. | 12 | $912 | 0.00% | +1+9.1% | Added |
| Jackson, Grant Investment Advisers, Inc. | 11 | $835 | 0.00% | −109−90.8% | Reduced |
| Rakuten Securities, Inc. | 11 | $835 | 0.00% | +11 | New |
| Raffa Wealth Management, LLC | 9 | $683 | 0.00% | 00.0% | Unchanged |
| Principia Wealth Advisory, LLC | 8 | $607 | 0.00% | +1+14.3% | Added |
| Twin Peaks Wealth Advisors, LLC | 7 | $554 | 0.00% | +7 | New |
| Core Alternative Capital | 7 | $532 | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 7 | $532 | 0.00% | +7 | New |
| True Wealth Design, LLC | 6 | $456 | 0.00% | −46−88.5% | Reduced |
| CoreCap Advisors, LLC | 5 | $380 | 0.00% | −158−96.9% | Reduced |
| WealthTrak Capital Management LLC | 5 | $380 | 0.00% | 00.0% | Unchanged |
| SWAN Capital LLC | 5 | $380 | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 4 | $304 | 0.00% | −46−92.0% | Reduced |
| DiNuzzo Private Wealth, Inc. | 4 | $304 | 0.00% | −6−60.0% | Reduced |
| Parkworth Wealth Management, Inc. | 4 | $304 | 0.00% | +2+100.0% | Added |