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, Q4 2021
Institutional positions in Westlake Corp as of Dec 31, 2021. 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
- 298
- +30 vs. Q3 2021
- Shares held
- 34.7M
- +469.2K (+1.4%) vs. Q3 2021
- Total value
- $3.37B
- +$246.2M (+7.9%) vs. Q3 2021
- New holders
- 67
- 93 more added
- Sold out
- 37
- 97 more reduced
4 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2021: 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, Q4 2021
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Jade Capital Advisors, LLC | 0 | $0 | 0.00% | −80,000−100.0% | Sold out |
| GMT Capital Corp | 0 | $0 | 0.00% | −76,100−100.0% | Sold out |
| Jennison Associates LLC | 0 | $0 | 0.00% | −40,934−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −36,297−100.0% | Sold out |
| SeaTown Holdings Pte. Ltd. | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| Parallax Volatility Advisers, L.P. | 0 | $0 | 0.00% | −22,155−100.0% | Sold out |
| Blueshift Asset Management, LLC | 0 | $0 | 0.00% | −20,641−100.0% | Sold out |
| PEAK6 Investments LLC | 0 | $0 | 0.00% | −17,927−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −12,105−100.0% | Sold out |
| Raymond James Financial Services Advisors, Inc. | 0 | $0 | 0.00% | −10,807−100.0% | Sold out |
| Golden State Equity Partners | 0 | $0 | 0.00% | −10,704−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −9,442−100.0% | Sold out |
| Seven Eight Capital, LP | 0 | $0 | 0.00% | −7,328−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −7,247−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −5,792−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −4,668−100.0% | Sold out |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −3,170−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −2,996−100.0% | Sold out |
| Capula Management Ltd | 0 | $0 | 0.00% | −2,873−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −2,746−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −2,734−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −2,590−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −2,454−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −2,423−100.0% | Sold out |
| Gulf International Bank (UK) Ltd | 0 | $0 | 0.00% | −1,600−100.0% | Sold out |
| Financial Management Professionals, Inc. | 0 | $0 | 0.00% | −180−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −154−100.0% | Sold out |
| Jackson, Grant Investment Advisers, Inc. | 0 | $0 | 0.00% | −109−100.0% | Sold out |
| Federation des caisses Desjardins du Quebec | 0 | $0 | 0.00% | −81−100.0% | Sold out |
| Cahill Financial Advisors Inc | 0 | $0 | 0.00% | −72−100.0% | Sold out |
| Kowal Investment Group, LLC | 0 | $0 | 0.00% | −70−100.0% | Sold out |
| Syverson Strege & Co | 0 | $0 | 0.00% | −27−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Brown Brothers Harriman & Co | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Meridian Wealth Partners, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Marshall Wace North America L.P. | – | – | – | – | Not filed |
| BBVA USA | – | – | – | – | Not filed |
| Berman Capital Advisors, LLC | – | – | – | – | Not filed |
| Heritage Wealth Management, LLC | – | – | – | – | Not filed |