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 |
|---|---|---|---|---|---|
| Penserra Capital Management LLC | 12 | $0 | 0.00% | 00.0% | Unchanged |
| HFM Investment Advisors, LLC | 1 | $76 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 1 | $76 | 0.00% | 00.0% | Unchanged |
| Valued Wealth Advisors LLC | 1 | $77 | 0.00% | −3−75.0% | Reduced |
| Mount Yale Investment Advisors, LLC | 3 | $228 | 0.00% | +3 | New |
| Whittier Trust Co of Nevada Inc | 4 | $300 | 0.00% | +4 | New |
| 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 |
| 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 |
| True Wealth Design, LLC | 6 | $456 | 0.00% | −46−88.5% | Reduced |
| Core Alternative Capital | 7 | $532 | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 7 | $532 | 0.00% | +7 | New |
| Twin Peaks Wealth Advisors, LLC | 7 | $554 | 0.00% | +7 | New |
| Principia Wealth Advisory, LLC | 8 | $607 | 0.00% | +1+14.3% | Added |
| Raffa Wealth Management, LLC | 9 | $683 | 0.00% | 00.0% | Unchanged |
| Jackson, Grant Investment Advisers, Inc. | 11 | $835 | 0.00% | −109−90.8% | Reduced |
| Rakuten Securities, Inc. | 11 | $835 | 0.00% | +11 | New |
| Bell Investment Advisors, Inc | 12 | $912 | 0.00% | 00.0% | Unchanged |
| South State Corp. | 12 | $912 | 0.00% | +1+9.1% | Added |
| Bellwether Advisors, LLC | 13 | $987 | 0.00% | 00.0% | Unchanged |
| 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 |
| Hughes Financial Services, LLC | 14 | $1.14K | 0.00% | +14 | New |
| Sound Income Strategies, LLC | 15 | $1.14K | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 15 | $1.14K | 0.00% | +15 | New |
| Global Retirement Partners, LLC | 17 | $1.29K | 0.00% | +17 | New |
| Sachetta, LLC | 19 | $1.44K | 0.00% | +8+72.7% | Added |
| Fortitude Family Office, LLC | 20 | $1.52K | 0.00% | +20 | New |
| Versant Capital Management, Inc | 22 | $1.67K | 0.00% | −2,655−99.2% | Reduced |
| 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 |
| Manchester Capital Management LLC | 23 | $1.75K | 0.00% | +23 | New |
| Larson Financial Group LLC | 24 | $1.82K | 0.00% | +1+4.3% | Added |
| Clearstead Advisors, LLC | 25 | $1.90K | 0.00% | +25 | New |
| Hemington Wealth Management | 27 | $2.00K | 0.00% | −47−63.5% | 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 |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 29 | $2.20K | 0.00% | −7−19.4% | Reduced |
| Koesten, Hirschmann & Crabtree, INC. | 33 | $2.53K | 0.00% | +33 | New |
| MV Capital Management, Inc. | 38 | $2.89K | 0.00% | +22+137.5% | Added |
| Steward Partners Investment Advisory, LLC | 39 | $2.96K | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 43 | $3.00K | 0.00% | −108−71.5% | Reduced |
| Cetera Trust Company, N.A | 40 | $3.04K | 0.00% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 40 | $3.22K | 0.00% | +40 | New |
| Bruce G. Allen Investments, LLC | 43 | $3.27K | 0.00% | +12+38.7% | Added |
| Ronald Blue Trust, Inc. | 49 | $3.72K | 0.00% | +49 | New |
| Trust Co of Vermont | 50 | $3.80K | 0.00% | 00.0% | Unchanged |
| Natixis | 62 | $4.71K | 0.00% | −186−75.0% | Reduced |
| Deseret Mutual Benefit Administrators | 62 | $4.71K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 72 | $5.48K | 0.00% | −154−68.1% | Reduced |
| Parkside Financial Bank & Trust | 74 | $5.62K | 0.00% | +37+100.0% | Added |
| Assetmark, Inc | 75 | $5.70K | 0.00% | +15+25.0% | Added |
| Ameritas Advisory Services, LLC | 78 | $5.92K | 0.00% | +78 | New |
| Bryn Mawr Trust Co | 79 | $6.00K | 0.00% | 00.0% | Unchanged |
| Rise Advisors, LLC | 83 | $6.29K | 0.00% | +1+1.2% | Added |
| CVA Family Office, LLC | 83 | $6.30K | 0.00% | −112−57.4% | Reduced |
| Private Trust Co NA | 90 | $6.83K | 0.00% | −226−71.5% | Reduced |
| Optiver Holding B.V. | 96 | $7.29K | 0.00% | +96 | New |
| First Horizon Advisors, Inc. | 105 | $7.97K | 0.00% | +29+38.2% | Added |
| SRS Capital Advisors, Inc. | 113 | $8.58K | 0.00% | −76−40.2% | Reduced |
| Massmutual Trust Co FSB | 130 | $9.87K | 0.00% | +81+165.3% | Added |
| Northwestern Mutual Wealth Management Co | 140 | $10.6K | 0.00% | −1,408−91.0% | Reduced |
| Private Wealth Management Group, LLC | 142 | $10.8K | 0.00% | +79+125.4% | Added |
| Spire Wealth Management | 145 | $11.0K | 0.00% | +145 | New |
| Binnacle Investments Inc | 150 | $11.4K | 0.01% | 00.0% | Unchanged |
| NBC Securities, Inc. | 195 | $14.0K | 0.00% | +195 | New |
| Federation des caisses Desjardins du Quebec | 190 | $14.4K | 0.00% | −389−67.2% | Reduced |
| National Bank of Canada | 237 | $18.0K | 0.00% | −26,737−99.1% | Reduced |
| Hantz Financial Services, Inc. | 264 | $20.0K | 0.00% | +258+4,300.0% | Added |
| Fifth Third Bancorp | 289 | $21.9K | 0.00% | −225−43.8% | Reduced |
| IFP Advisors, Inc | 259 | $22.1K | 0.00% | +258+25,800.0% | Added |
| Nisa Investment Advisors, LLC | 298 | $22.6K | 0.00% | +112+60.2% | Added |
| Jones Financial Companies LLLP | 300 | $22.9K | 0.00% | +46+18.1% | Added |
| EverSource Wealth Advisors, LLC | 318 | $24.1K | 0.00% | +243+324.0% | Added |
| Huntington National Bank | 347 | $26.3K | 0.00% | +347 | New |
| Arcadia Investment Management Corp | 350 | $26.6K | 0.00% | 00.0% | Unchanged |
| Transamerica Financial Advisors, Inc. | 438 | $33.2K | 0.00% | −1−0.2% | Reduced |
| GAMMA Investing LLC | 445 | $33.8K | 0.00% | −89−16.7% | Reduced |
| Parallel Advisors, LLC | 492 | $37.4K | 0.00% | −33−6.3% | Reduced |
| Umb Bank N A | 565 | $42.9K | 0.00% | +292+107.0% | Added |
| CWM, LLC | 567 | $43.0K | 0.00% | +200+54.5% | Added |
| Signaturefd, LLC | 640 | $48.6K | 0.00% | +213+49.9% | Added |
| Quest Partners LLC | 730 | $55.4K | 0.01% | +663+989.6% | Added |
| GWM Advisors LLC | 745 | $56.5K | 0.00% | +247+49.6% | Added |
| Covestor Ltd | 759 | $58.0K | 0.03% | +652+609.3% | Added |
| STRS Ohio | 799 | $60.7K | 0.00% | +799 | New |
| Nomura Asset Management Co Ltd | 896 | $68.0K | 0.00% | −9,740−91.6% | Reduced |
| Wahed Invest LLC | 907 | $68.9K | 0.01% | +28+3.2% | Added |
| Itau Unibanco Holding S.A. | 1,000 | $75.9K | 0.00% | +466+87.3% | Added |
| Skopos Labs, Inc. | 1,151 | $87.4K | 0.01% | +550+91.5% | Added |
| Federated Hermes, Inc. | 1,307 | $99.2K | 0.00% | −1,862−58.8% | Reduced |
| MAI Capital Management | 1,348 | $102.4K | 0.00% | +38+2.9% | Added |
| Allworth Financial LP | 1,409 | $107.0K | 0.00% | +487+52.8% | Added |
| CoreFirst Bank & Trust | 1,420 | $107.8K | 0.06% | +1,420 | New |
| The PNC Financial Services Group, Inc. | 1,433 | $108.8K | 0.00% | +151+11.8% | Added |
| Kimelman & Baird, LLC | 1,500 | $113.9K | 0.01% | 00.0% | Unchanged |