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, Q1 2025
Institutional positions in Westlake Corp as of Mar 31, 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
- 361
- −14 vs. Q4 2024
- Shares held
- 36.4M
- +2.10M (+6.1%) vs. Q4 2024
- Total value
- $3.64B
- −$292.4M (−7.4%) vs. Q4 2024
- New holders
- 47
- 147 more added
- Sold out
- 61
- 115 more reduced
3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Avion Wealth | 3 | $0 | 0.00% | +3 | New |
| SBI Securities Co., Ltd. | 1 | $100 | 0.00% | −1−50.0% | Reduced |
| HFM Investment Advisors, LLC | 1 | $101 | 0.00% | +1 | New |
| Cornerstone Planning Group LLC | 2 | $185 | 0.00% | −1−33.3% | Reduced |
| Financial Management Professionals, Inc. | 2 | $200 | 0.00% | 00.0% | Unchanged |
| Parkworth Wealth Management, Inc. | 2 | $200 | 0.00% | 00.0% | Unchanged |
| Bay Harbor Wealth Management, LLC | 2 | $200 | 0.00% | +2 | New |
| Valued Wealth Advisors LLC | 4 | $401 | 0.00% | 00.0% | Unchanged |
| SWAN Capital LLC | 5 | $500 | 0.00% | 00.0% | Unchanged |
| WealthTrak Capital Management LLC | 5 | $501 | 0.00% | +5 | New |
| Principia Wealth Advisory, LLC | 7 | $656 | 0.00% | +4+133.3% | Added |
| Core Alternative Capital | 7 | $700 | 0.00% | 00.0% | Unchanged |
| Raffa Wealth Management, LLC | 9 | $900 | 0.00% | 00.0% | Unchanged |
| Global Financial Private Client, LLC | 9 | $900 | 0.00% | +5+125.0% | Added |
| SJS Investment Consulting Inc. | 9 | $901 | 0.00% | −3−25.0% | Reduced |
| Capital Advisors, Ltd. LLC | 7 | $1.00K | 0.00% | −53−88.3% | Reduced |
| Picton Mahoney Asset Management | 8 | $1.00K | 0.00% | 00.0% | Unchanged |
| Penserra Capital Management LLC | 12 | $1.00K | 0.00% | 00.0% | Unchanged |
| Ogorek Anthony Joseph | 18 | $1.00K | 0.00% | +18 | New |
| Hantz Financial Services, Inc. | 6 | $1.00K | 0.00% | +6 | New |
| DiNuzzo Private Wealth, Inc. | 10 | $1.00K | 0.00% | 00.0% | Unchanged |
| Sachetta, LLC | 11 | $1.10K | 0.00% | −4−26.7% | Reduced |
| South State Corp. | 11 | $1.10K | 0.00% | +11 | New |
| Bell Investment Advisors, Inc | 12 | $1.20K | 0.00% | −4−25.0% | Reduced |
| Bellwether Advisors, LLC | 13 | $1.30K | 0.00% | 00.0% | Unchanged |
| Zions Bancorporation, National Association | 14 | $1.40K | 0.00% | +14 | New |
| Sound Income Strategies, LLC | 15 | $1.50K | 0.00% | 00.0% | Unchanged |
| Activest Wealth Management | 15 | $1.50K | 0.00% | +14+1,400.0% | Added |
| Saudi Central Bank | 15 | $1.50K | 0.01% | +15 | New |
| MV Capital Management, Inc. | 16 | $1.60K | 0.00% | +16 | New |
| Principal Securities, Inc. | 15 | $1.72K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 23 | $2.30K | 0.00% | 00.0% | Unchanged |
| Farmers & Merchants Investments Inc | 23 | $2.30K | 0.00% | +10+76.9% | Added |
| Sierra Ocean, LLC | 24 | $2.40K | 0.00% | −7−22.6% | Reduced |
| Harbour Investments, Inc. | 26 | $2.60K | 0.00% | 00.0% | Unchanged |
| Park Square Financial Group, LLC | 27 | $2.70K | 0.00% | −1−3.6% | Reduced |
| Bruce G. Allen Investments, LLC | 31 | $3.10K | 0.00% | 00.0% | Unchanged |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 36 | $3.60K | 0.00% | +25+227.3% | Added |
| Parkside Financial Bank & Trust | 37 | $3.70K | 0.00% | +9+32.1% | Added |
| Steward Partners Investment Advisory, LLC | 39 | $3.90K | 0.00% | −22−36.1% | Reduced |
| Cetera Trust Company, N.A | 40 | $4.00K | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 49 | $4.90K | 0.00% | +41+512.5% | Added |
| JFS Wealth Advisors, LLC | 50 | $5.00K | 0.00% | −22−30.6% | Reduced |
| Trust Co of Vermont | 50 | $5.00K | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 52 | $5.20K | 0.00% | +48+1,200.0% | Added |
| Assetmark, Inc | 60 | $6.00K | 0.00% | +56+1,400.0% | Added |
| Deseret Mutual Benefit Administrators | 62 | $6.20K | 0.00% | 00.0% | Unchanged |
| Private Wealth Management Group, LLC | 63 | $6.30K | 0.00% | −26−29.2% | Reduced |
| Quest Partners LLC | 67 | $6.70K | 0.00% | +19+39.6% | Added |
| Hemington Wealth Management | 74 | $7.00K | 0.00% | +22+42.3% | Added |
| EverSource Wealth Advisors, LLC | 75 | $7.50K | 0.00% | +19+33.9% | Added |
| First Horizon Advisors, Inc. | 76 | $7.60K | 0.00% | +39+105.4% | Added |
| Bryn Mawr Trust Co | 79 | $7.90K | 0.00% | 00.0% | Unchanged |
| Rise Advisors, LLC | 82 | $8.22K | 0.00% | −33−28.7% | Reduced |
| Farther Finance Advisors, LLC | 99 | $9.90K | 0.00% | −20−16.8% | Reduced |
| Covestor Ltd | 107 | $11.0K | 0.01% | 00.0% | Unchanged |
| Jackson, Grant Investment Advisers, Inc. | 120 | $12.0K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 146 | $14.0K | 0.00% | −2,083−93.4% | Reduced |
| Bessemer Group Inc | 151 | $15.0K | 0.00% | +34+29.1% | Added |
| Binnacle Investments Inc | 150 | $15.0K | 0.01% | +150 | New |
| Lindbrook Capital, LLC | 158 | $15.8K | 0.00% | +88+125.7% | Added |
| Ci Investments Inc. | 164 | $16.0K | 0.00% | −13−7.3% | Reduced |
| CoreCap Advisors, LLC | 163 | $16.3K | 0.00% | +40+32.5% | Added |
| Quent Capital, LLC | 165 | $16.5K | 0.00% | +49+42.2% | Added |
| Mirae Asset Global Investments Co., Ltd. | 185 | $18.3K | 0.00% | +185 | New |
| Nisa Investment Advisors, LLC | 186 | $18.6K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 189 | $18.9K | 0.00% | +181+2,262.5% | Added |
| CVA Family Office, LLC | 195 | $19.5K | 0.00% | −22−10.1% | Reduced |
| Livforsakringsbolaget Skandia, Omsesidigt | 200 | $20.0K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 226 | $22.4K | 0.00% | −26−10.3% | Reduced |
| CIBC Private Wealth Group, LLC | 287 | $23.8K | 0.00% | +287 | New |
| Natixis | 248 | $24.6K | 0.00% | +53+27.2% | Added |
| Jones Financial Companies LLLP | 254 | $25.2K | 0.00% | +44+21.0% | Added |
| Umb Bank N A | 273 | $27.3K | 0.00% | +75+37.9% | Added |
| Coldstream Capital Management Inc | 289 | $28.9K | 0.00% | +289 | New |
| Private Trust Co NA | 316 | $31.6K | 0.00% | +226+251.1% | Added |
| Arcadia Investment Management Corp | 350 | $35.0K | 0.01% | 00.0% | Unchanged |
| CWM, LLC | 367 | $37.0K | 0.00% | −94−20.4% | Reduced |
| Siemens Fonds Invest GmbH | 413 | $41.3K | 0.00% | +413 | New |
| Signaturefd, LLC | 427 | $42.7K | 0.00% | +239+127.1% | Added |
| Transamerica Financial Advisors, Inc. | 439 | $44.0K | 0.00% | +50+12.9% | Added |
| GWM Advisors LLC | 498 | $49.8K | 0.00% | −60−10.8% | Reduced |
| Fifth Third Bancorp | 514 | $51.4K | 0.00% | +215+71.9% | Added |
| Parallel Advisors, LLC | 525 | $52.5K | 0.00% | +133+33.9% | Added |
| Itau Unibanco Holding S.A. | 534 | $53.0K | 0.00% | −3−0.6% | Reduced |
| GAMMA Investing LLC | 534 | $53.4K | 0.00% | +11+2.1% | Added |
| Caitong International Asset Management Co., Ltd | 559 | $55.9K | 0.04% | +541+3,005.6% | Added |
| Federation des caisses Desjardins du Quebec | 579 | $57.9K | 0.00% | +220+61.3% | Added |
| Skopos Labs, Inc. | 601 | $60.1K | 0.01% | +239+66.0% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 622 | $62.0K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 922 | $87.4K | 0.00% | +537+139.5% | Added |
| Wahed Invest LLC | 879 | $87.9K | 0.02% | +213+32.0% | Added |
| Vestcor Inc | 888 | $89.0K | 0.00% | −3,093−77.7% | Reduced |
| Rakuten Investment Management, Inc. | 1,065 | $105.6K | 0.00% | +1,065 | New |
| Tower Research Capital LLC (TRC) | 1,107 | $108.6K | 0.00% | −3,698−77.0% | Reduced |
| The PNC Financial Services Group, Inc. | 1,282 | $128.2K | 0.00% | +45+3.6% | Added |
| MAI Capital Management | 1,310 | $131.0K | 0.00% | 00.0% | Unchanged |
| Macquarie Group Ltd | 1,426 | $142.6K | 0.00% | −1,795−55.7% | Reduced |
| Kimelman & Baird, LLC | 1,500 | $150.0K | 0.01% | 00.0% | Unchanged |
| Northwestern Mutual Wealth Management Co | 1,548 | $154.9K | 0.00% | −3−0.2% | Reduced |