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 2026
Institutional positions in Westlake Corp as of Jun 30, 2026. 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
- 360
- +24 vs. Q1 2026
- Shares held
- 39.7M
- −4.10M (−9.4%) vs. Q1 2026
- Total value
- $2.90B
- −$2.21B (−43.2%) vs. Q1 2026
- New holders
- 88
- 109 more added
- Sold out
- 64
- 119 more reduced
3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Penserra Capital Management LLC | 9 | $0 | 0.00% | 00.0% | Unchanged |
| Evolution Advisers, Inc. | 3 | $0 | 0.00% | +3 | New |
| Navigoe, LLC | 5 | $0 | 0.00% | +5 | New |
| SBI Securities Co., Ltd. | 1 | $73 | 0.00% | −1−50.0% | Reduced |
| 3 Factor Indexing, LLC | 1 | $73 | 0.00% | 00.0% | Unchanged |
| Abound Wealth Management | 1 | $73 | 0.00% | +1 | New |
| Valued Wealth Advisors LLC | 1 | $76 | 0.00% | 00.0% | Unchanged |
| DecisionPoint Financial, LLC | 2 | $146 | 0.00% | +2 | New |
| Hughes Financial Services, LLC | 3 | $219 | 0.00% | +1+50.0% | Added |
| Maryland Capital Advisors Inc. | 3 | $219 | 0.00% | +3 | New |
| Rossby Financial, LCC | 3 | $219 | 0.00% | +3 | New |
| Dunhill Financial, LLC | 3 | $271 | 0.00% | 00.0% | Unchanged |
| Keating Financial Advisory Services, Inc. | 4 | $292 | 0.00% | −26−86.7% | Reduced |
| Cromwell Holdings LLC | 4 | $292 | 0.00% | 00.0% | Unchanged |
| Arlington Trust Co LLC | 4 | $292 | 0.00% | 00.0% | Unchanged |
| LRI Investments, LLC | 4 | $292 | 0.00% | +4 | New |
| MV Capital Management, Inc. | 5 | $365 | 0.00% | −1−16.7% | Reduced |
| SWAN Capital LLC | 5 | $365 | 0.00% | 00.0% | Unchanged |
| Financial Consulate, Inc | 6 | $438 | 0.00% | +6 | New |
| American Capital Advisory, LLC | 7 | $511 | 0.00% | 00.0% | Unchanged |
| HFM Investment Advisors, LLC | 7 | $511 | 0.00% | +1+16.7% | Added |
| Bell Investment Advisors, Inc | 7 | $511 | 0.00% | +7 | New |
| South State Corp. | 8 | $584 | 0.00% | −10−55.6% | Reduced |
| Rialto Wealth Management, LLC | 8 | $584 | 0.00% | −4−33.3% | Reduced |
| Principia Wealth Advisory, LLC | 8 | $584 | 0.00% | 00.0% | Unchanged |
| Creative Financial Designs Inc | 9 | $657 | 0.00% | 00.0% | Unchanged |
| DiNuzzo Private Wealth, Inc. | 10 | $730 | 0.00% | +1+11.1% | Added |
| Owl Creek Wealth Partners LLC | 10 | $730 | 0.00% | +10 | New |
| First Horizon Corp | 11 | $803 | 0.00% | −13−54.2% | Reduced |
| Bay Harbor Wealth Management, LLC | 11 | $803 | 0.00% | −1−8.3% | Reduced |
| Raffa Wealth Management, LLC | 11 | $803 | 0.00% | +1+10.0% | Added |
| Planning Strategies Inc. | 12 | $876 | 0.00% | +12 | New |
| Torren Management, LLC | 13 | $984 | 0.00% | 00.0% | Unchanged |
| Ogorek Anthony Joseph | 18 | $1.00K | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 14 | $1.00K | 0.00% | 00.0% | Unchanged |
| Wilkerson Advisory Group LLC | 14 | $1.02K | 0.00% | −2−12.5% | Reduced |
| Purpose Unlimited Inc. | 19 | $1.39K | 0.00% | −15−44.1% | Reduced |
| JFS Wealth Advisors, LLC | 21 | $1.53K | 0.00% | −9−30.0% | Reduced |
| Manchester Capital Management LLC | 21 | $1.53K | 0.00% | 00.0% | Unchanged |
| AdvisorNet Financial, Inc | 21 | $1.53K | 0.00% | +2+10.5% | Added |
| Peterson Wealth Services | 23 | $1.68K | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 24 | $1.75K | 0.00% | 00.0% | Unchanged |
| Creative Capital Management Investments LLC | 25 | $1.82K | 0.00% | +25 | New |
| GoalVest Advisory LLC | 26 | $1.90K | 0.00% | +26 | New |
| Farmers & Merchants Investments Inc | 30 | $2.19K | 0.00% | 00.0% | Unchanged |
| Bruce G. Allen Investments, LLC | 31 | $2.26K | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 32 | $2.34K | 0.00% | 00.0% | Unchanged |
| Transce3nd, LLC | 33 | $2.49K | 0.02% | 00.0% | Unchanged |
| Assetmark, Inc | 39 | $2.85K | 0.00% | −5−11.4% | Reduced |
| Basecamp Wealth Advisors LLC | 40 | $2.92K | 0.00% | −5−11.1% | Reduced |
| CVA Family Office, LLC | 41 | $2.99K | 0.00% | −43−51.2% | Reduced |
| Larson Financial Group LLC | 41 | $2.99K | 0.00% | −16−28.1% | Reduced |
| Fortitude Family Office, LLC | 42 | $3.07K | 0.00% | −10−19.2% | Reduced |
| Global Retirement Partners, LLC | 42 | $3.07K | 0.00% | +42 | New |
| Action Point Financial Planning, LLC | 45 | $3.14K | 0.00% | +45 | New |
| TD Waterhouse Canada Inc. | 49 | $3.57K | 0.00% | −1,326−96.4% | Reduced |
| Trust Co of Vermont | 50 | $3.65K | 0.00% | +50 | New |
| Rakuten Securities, Inc. | 51 | $3.72K | 0.00% | −13−20.3% | Reduced |
| Brown Brothers Harriman & Co | 55 | $4.01K | 0.00% | 00.0% | Unchanged |
| Sachetta, LLC | 55 | $4.01K | 0.00% | +1+1.9% | Added |
| Parkside Financial Bank & Trust | 68 | $4.96K | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 75 | $5.47K | 0.00% | +53+240.9% | Added |
| Private Wealth Management Group, LLC | 79 | $5.77K | 0.00% | +43+119.4% | Added |
| Pinnacle Wealth Planning Services, Inc. | 80 | $5.84K | 0.00% | +22+37.9% | Added |
| Private Trust Co NA | 90 | $6.57K | 0.00% | 00.0% | Unchanged |
| Eurizon Capital SGR S.p.A. | 89 | $6.66K | 0.00% | −7,429−98.8% | Reduced |
| Covestor Ltd | 112 | $8.00K | 0.00% | −429−79.3% | Reduced |
| Huntington National Bank | 121 | $8.83K | 0.00% | +2+1.7% | Added |
| Activest Wealth Management | 140 | $10.2K | 0.00% | +138+6,900.0% | Added |
| Bessemer Group Inc | 165 | $12.0K | 0.00% | +105+175.0% | Added |
| Cullen/Frost Bankers, Inc. | 166 | $12.1K | 0.00% | +1+0.6% | Added |
| Spire Wealth Management | 172 | $12.6K | 0.00% | 00.0% | Unchanged |
| NBC Securities, Inc. | 194 | $14.2K | 0.00% | −6−3.0% | Reduced |
| Advisor Group Holdings, Inc. | 209 | $15.3K | 0.00% | +19+10.0% | Added |
| Smartleaf Asset Management LLC | 213 | $15.9K | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 221 | $16.1K | 0.00% | −53−19.3% | Reduced |
| True Wealth Design, LLC | 232 | $16.9K | 0.00% | +205+759.3% | Added |
| Deseret Mutual Benefit Administrators | 248 | $18.1K | 0.01% | 00.0% | Unchanged |
| Quent Capital, LLC | 253 | $18.5K | 0.00% | +15+6.3% | Added |
| Nisa Investment Advisors, LLC | 284 | $20.7K | 0.00% | +99+53.5% | Added |
| Versant Capital Management, Inc | 284 | $20.7K | 0.00% | +183+181.2% | Added |
| Umb Bank N A | 301 | $22.0K | 0.00% | −11−3.5% | Reduced |
| Nomura Asset Management Co Ltd | 340 | $24.8K | 0.00% | −330−49.3% | Reduced |
| Clearstead Advisors, LLC | 376 | $27.4K | 0.00% | +358+1,988.9% | Added |
| Rockefeller Capital Management L.P. | 395 | $28.9K | 0.00% | −462−53.9% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 461 | $33.7K | 0.00% | −74−13.8% | Reduced |
| GAMMA Investing LLC | 494 | $36.1K | 0.00% | −37−7.0% | Reduced |
| Jones Financial Companies LLLP | 487 | $37.3K | 0.00% | +126+34.9% | Added |
| Exchange Traded Concepts, LLC | 596 | $43.5K | 0.00% | +60+11.2% | Added |
| Farther Finance Advisors, LLC | 604 | $44.2K | 0.00% | +315+109.0% | Added |
| GWM Advisors LLC | 689 | $50.3K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 695 | $50.7K | 0.00% | −135−16.3% | Reduced |
| STRS Ohio | 695 | $50.7K | 0.00% | −104−13.0% | Reduced |
| Compagnie Lombard Odier SCmA | 860 | $62.8K | 0.00% | 00.0% | Unchanged |
| Nykredit A/S | 948 | $69.2K | 0.00% | +948 | New |
| EverSource Wealth Advisors, LLC | 961 | $70.2K | 0.00% | +727+310.7% | Added |
| Sterling Capital Management LLC | 991 | $72.3K | 0.00% | −131−11.7% | Reduced |
| Transamerica Financial Advisors, Inc. | 1,095 | $80.0K | 0.01% | −205−15.8% | Reduced |
| Essential Partners LLC | 1,096 | $80.0K | 0.04% | +1,087+12,077.8% | Added |
| Signaturefd, LLC | 1,160 | $84.7K | 0.00% | +12+1.0% | Added |