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 |
|---|---|---|---|---|---|
| Binnacle Investments Inc | 150 | $15.0K | 0.01% | +150 | New |
| Bessemer Group Inc | 151 | $15.0K | 0.00% | +34+29.1% | Added |
| Simplex Trading, LLC | 146 | $14.0K | 0.00% | −2,083−93.4% | Reduced |
| Jackson, Grant Investment Advisers, Inc. | 120 | $12.0K | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 107 | $11.0K | 0.01% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 99 | $9.90K | 0.00% | −20−16.8% | Reduced |
| Rise Advisors, LLC | 82 | $8.22K | 0.00% | −33−28.7% | Reduced |
| Bryn Mawr Trust Co | 79 | $7.90K | 0.00% | 00.0% | Unchanged |
| First Horizon Advisors, Inc. | 76 | $7.60K | 0.00% | +39+105.4% | Added |
| EverSource Wealth Advisors, LLC | 75 | $7.50K | 0.00% | +19+33.9% | Added |
| Hemington Wealth Management | 74 | $7.00K | 0.00% | +22+42.3% | Added |
| Quest Partners LLC | 67 | $6.70K | 0.00% | +19+39.6% | Added |
| Private Wealth Management Group, LLC | 63 | $6.30K | 0.00% | −26−29.2% | Reduced |
| Deseret Mutual Benefit Administrators | 62 | $6.20K | 0.00% | 00.0% | Unchanged |
| Assetmark, Inc | 60 | $6.00K | 0.00% | +56+1,400.0% | Added |
| True Wealth Design, LLC | 52 | $5.20K | 0.00% | +48+1,200.0% | 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 |
| Massmutual Trust Co FSB | 49 | $4.90K | 0.00% | +41+512.5% | Added |
| Cetera Trust Company, N.A | 40 | $4.00K | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 39 | $3.90K | 0.00% | −22−36.1% | Reduced |
| Parkside Financial Bank & Trust | 37 | $3.70K | 0.00% | +9+32.1% | Added |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 36 | $3.60K | 0.00% | +25+227.3% | Added |
| Bruce G. Allen Investments, LLC | 31 | $3.10K | 0.00% | 00.0% | Unchanged |
| Park Square Financial Group, LLC | 27 | $2.70K | 0.00% | −1−3.6% | Reduced |
| Harbour Investments, Inc. | 26 | $2.60K | 0.00% | 00.0% | Unchanged |
| Sierra Ocean, LLC | 24 | $2.40K | 0.00% | −7−22.6% | Reduced |
| 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 |
| Principal Securities, Inc. | 15 | $1.72K | 0.00% | 00.0% | Unchanged |
| MV Capital Management, Inc. | 16 | $1.60K | 0.00% | +16 | 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 |
| Zions Bancorporation, National Association | 14 | $1.40K | 0.00% | +14 | New |
| Bellwether Advisors, LLC | 13 | $1.30K | 0.00% | 00.0% | Unchanged |
| Bell Investment Advisors, Inc | 12 | $1.20K | 0.00% | −4−25.0% | Reduced |
| Sachetta, LLC | 11 | $1.10K | 0.00% | −4−26.7% | Reduced |
| South State Corp. | 11 | $1.10K | 0.00% | +11 | New |
| DiNuzzo Private Wealth, Inc. | 10 | $1.00K | 0.00% | 00.0% | Unchanged |
| 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 |
| SJS Investment Consulting Inc. | 9 | $901 | 0.00% | −3−25.0% | Reduced |
| Raffa Wealth Management, LLC | 9 | $900 | 0.00% | 00.0% | Unchanged |
| Global Financial Private Client, LLC | 9 | $900 | 0.00% | +5+125.0% | Added |
| Core Alternative Capital | 7 | $700 | 0.00% | 00.0% | Unchanged |
| Principia Wealth Advisory, LLC | 7 | $656 | 0.00% | +4+133.3% | Added |
| WealthTrak Capital Management LLC | 5 | $501 | 0.00% | +5 | New |
| SWAN Capital LLC | 5 | $500 | 0.00% | 00.0% | Unchanged |
| Valued Wealth Advisors LLC | 4 | $401 | 0.00% | 00.0% | Unchanged |
| 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 |
| Cornerstone Planning Group LLC | 2 | $185 | 0.00% | −1−33.3% | Reduced |
| HFM Investment Advisors, LLC | 1 | $101 | 0.00% | +1 | New |
| SBI Securities Co., Ltd. | 1 | $100 | 0.00% | −1−50.0% | Reduced |
| Avion Wealth | 3 | $0 | 0.00% | +3 | New |
| IFP Advisors, Inc | 1 | – | – | −7−87.5% | Reduced |
| Proequities, Inc. | 0 | $0 | 0.00% | −210−100.0% | Sold out |
| Orbis Allan Gray Ltd | 0 | $0 | 0.00% | −299,802−100.0% | Sold out |
| Merewether Investment Management, LP | 0 | $0 | 0.00% | −273,637−100.0% | Sold out |
| Readystate Asset Management LP | 0 | $0 | 0.00% | −115,728−100.0% | Sold out |
| Moran Wealth Management, LLC | 0 | $0 | 0.00% | −68,539−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −48,285−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −35,046−100.0% | Sold out |
| Bank of Nova Scotia | 0 | $0 | 0.00% | −25,296−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| CBOE Vest Financial, LLC | 0 | $0 | 0.00% | −21,501−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −15,914−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −13,618−100.0% | Sold out |
| Old Mission Capital LLC | 0 | $0 | 0.00% | −9,165−100.0% | Sold out |
| AustralianSuper Pty Ltd | 0 | $0 | 0.00% | −8,380−100.0% | Sold out |
| Custom Index Systems, LLC | 0 | $0 | 0.00% | −7,059−100.0% | Sold out |
| B. Metzler seel. Sohn & Co. AG | 0 | $0 | 0.00% | −6,900−100.0% | Sold out |
| LMCG Investments, LLC | 0 | $0 | 0.00% | −6,751−100.0% | Sold out |
| Concentric Capital Strategies, LP | 0 | $0 | 0.00% | −5,889−100.0% | Sold out |
| Farringdon Capital, Ltd. | 0 | $0 | 0.00% | −5,596−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −5,016−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −4,988−100.0% | Sold out |
| Wealthcare Advisory Partners LLC | 0 | $0 | 0.00% | −4,954−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −4,440−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −3,960−100.0% | Sold out |
| Fieldview Capital Management, LLC | 0 | $0 | 0.00% | −3,929−100.0% | Sold out |
| Crestline Management, LP | 0 | $0 | 0.00% | −3,648−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −3,549−100.0% | Sold out |
| James Investment Research Inc | 0 | $0 | 0.00% | −3,418−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −3,201−100.0% | Sold out |
| Union Bancaire Privee, UBP SA | 0 | $0 | 0.00% | −3,346−100.0% | Sold out |
| Wisconsin Wealth Advisors, LLC | 0 | $0 | 0.00% | −2,933−100.0% | Sold out |
| Lindenwold Advisors | 0 | $0 | 0.00% | −2,683−100.0% | Sold out |
| Westover Capital Advisors, LLC | 0 | $0 | 0.00% | −2,555−100.0% | Sold out |
| Sigma Planning Corp | 0 | $0 | 0.00% | −2,531−100.0% | Sold out |
| Forum Financial Management, LP | 0 | $0 | 0.00% | −2,393−100.0% | Sold out |
| Keybank National Association | 0 | $0 | 0.00% | −2,022−100.0% | Sold out |
| Cercano Management LLC | 0 | $0 | 0.00% | −1,978−100.0% | Sold out |
| Tyche Wealth Partners LLC | 0 | $0 | 0.00% | −1,933−100.0% | Sold out |
| Net Worth Advisory Group | 0 | $0 | 0.00% | −1,927−100.0% | Sold out |