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, Q3 2023
Institutional positions in Westlake Corp as of Sep 30, 2023. 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
- 335
- −2 vs. Q2 2023
- Shares held
- 37.2M
- +308.4K (+0.8%) vs. Q2 2023
- Total value
- $4.64B
- +$231.6M (+5.2%) vs. Q2 2023
- New holders
- 36
- 92 more added
- Sold out
- 38
- 144 more reduced
3 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: 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, Q3 2023
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Caisse de Depot Et Placement du Quebec | 147,163 | $18.3M | 0.05% | +42,633+40.8% | Added |
| Erste Asset Management GmbH | 155,206 | $19.3M | 0.33% | −8,164−5.0% | Reduced |
| Millennium Management LLC | 200,264 | $25.0M | 0.03% | +174,483+676.8% | Added |
| Legal & General Group Plc | 204,780 | $25.5M | 0.01% | −11,770−5.4% | Reduced |
| Janus Henderson Group PLC | 205,614 | $25.6M | 0.02% | +59,040+40.3% | Added |
| UBS Asset Management Americas Inc | 207,973 | $25.9M | 0.01% | +79,731+62.2% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 227,468 | $28.4M | 0.13% | +1,946+0.9% | Added |
| Robotti Robert | 227,622 | $28.4M | 4.17% | −737−0.3% | Reduced |
| ProShare Advisors LLC | 276,220 | $34.4M | 0.11% | −13,965−4.8% | Reduced |
| Allspring Global Investments Holdings, LLC | 290,321 | $36.2M | 0.06% | −52,602−15.3% | Reduced |
| Invesco Ltd. | 304,429 | $38.0M | 0.01% | +109,433+56.1% | Added |
| AQR Capital Management LLC | 310,611 | $38.7M | 0.08% | +17,838+6.1% | Added |
| Samlyn Capital, LLC | 316,731 | $39.5M | 0.70% | +316,731 | New |
| Northern Trust Corp | 321,888 | $40.1M | 0.01% | +5,401+1.7% | Added |
| Morgan Stanley | 330,023 | $41.1M | 0.00% | +16,237+5.2% | Added |
| Charles Schwab Investment Management Inc | 344,632 | $43.0M | 0.01% | −8,423−2.4% | Reduced |
| Norges Bank | 366,818 | $45.7M | 0.01% | +887+0.2% | Added |
| Bank of New York Mellon Corp | 375,327 | $46.8M | 0.01% | −27,764−6.9% | Reduced |
| Federated Hermes, Inc. | 408,295 | $50.9M | 0.14% | −68,849−14.4% | Reduced |
| Geode Capital Management, LLC | 474,139 | $59.0M | 0.01% | −11,870−2.4% | Reduced |
| First Trust Advisors LP | 473,652 | $59.1M | 0.07% | −46,559−9.0% | Reduced |
| Nuveen Asset Management, LLC | 518,672 | $64.7M | 0.02% | −2,457−0.5% | Reduced |
| Capital World Investors | 636,111 | $79.3M | 0.02% | +636,111 | New |
| Mirae Asset Global Investments Co., Ltd. | 682,832 | $85.1M | 0.19% | +63,823+10.3% | Added |
| Goldman Sachs Group Inc | 705,496 | $88.0M | 0.02% | −71,060−9.2% | Reduced |
| Citadel Advisors LLC | 770,654 | $96.1M | 0.10% | −62,695−7.5% | Reduced |
| Soroban Capital Partners LP | 898,837 | $112.1M | 1.66% | 00.0% | Unchanged |
| Pacer Advisors, Inc. | 1,075,976 | $134.1M | 0.51% | −85,165−7.3% | Reduced |
| Dimensional Fund Advisors LP | 1,102,549 | $137.5M | 0.05% | −149,322−11.9% | Reduced |
| State Street Corp | 1,128,455 | $140.7M | 0.01% | −35,829−3.1% | Reduced |
| Orbis Allan Gray Ltd | 3,211,523 | $400.4M | 2.88% | +296,494+10.2% | Added |
| Victory Capital Management Inc | 3,369,244 | $420.0M | 0.48% | −36,331−1.1% | Reduced |
| Vanguard Group Inc | 3,382,864 | $421.7M | 0.01% | −66,657−1.9% | Reduced |
| BlackRock Inc. | 3,519,629 | $438.8M | 0.01% | −283,621−7.5% | Reduced |
| FMR LLC | 4,630,975 | $577.3M | 0.05% | +96,152+2.1% | Added |
| Key Group Holdings (Cayman), Ltd. | 0 | $0 | 0.00% | −180,000−100.0% | Sold out |
| Yaupon Capital Management LP | 0 | $0 | 0.00% | −120,201−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −89,272−100.0% | Sold out |
| Vident Investment Advisory, LLC | 0 | $0 | 0.00% | −71,646−100.0% | Sold out |
| Cerity Partners LLC | 0 | $0 | 0.00% | −61,440−100.0% | Sold out |
| State of Tennessee, Treasury Department | 0 | $0 | 0.00% | −32,584−100.0% | Sold out |
| Clark Estates Inc | 0 | $0 | 0.00% | −28,600−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −26,985−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −17,078−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −11,352−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −9,788−100.0% | Sold out |
| V Wealth Advisors LLC | 0 | $0 | 0.00% | −8,500−100.0% | Sold out |
| Kingsview Wealth Management, LLC | 0 | $0 | 0.00% | −7,267−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −6,255−100.0% | Sold out |
| Cipher Capital LP | 0 | $0 | 0.00% | −5,835−100.0% | Sold out |
| M&G Investment Management Ltd | 0 | $0 | 0.00% | −5,732−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −4,501−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −3,862−100.0% | Sold out |
| Ontario Teachers Pension Plan Board | 0 | $0 | 0.00% | −3,317−100.0% | Sold out |
| Meixler Investment Management, Ltd. | 0 | $0 | 0.00% | −3,240−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −2,925−100.0% | Sold out |
| Royal London Asset Management Ltd | 0 | $0 | 0.00% | −2,721−100.0% | Sold out |
| SevenOneSeven Capital Management | 0 | $0 | 0.00% | −2,403−100.0% | Sold out |
| PEAK6 Investments LLC | 0 | $0 | 0.00% | −2,611−100.0% | Sold out |
| Martingale Asset Management L P | 0 | $0 | 0.00% | −2,205−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −2,172−100.0% | Sold out |
| Teza Capital Management LLC | 0 | $0 | 0.00% | −1,922−100.0% | Sold out |
| Astoria Portfolio Advisors LLC. | 0 | $0 | 0.00% | −1,583−100.0% | Sold out |
| Bank of Nova Scotia | 0 | $0 | 0.00% | −1,684−100.0% | Sold out |
| iA Global Asset Management Inc. | 0 | $0 | 0.00% | −1,512−100.0% | Sold out |
| Chiron Investment Management, LLC | 0 | $0 | 0.00% | −682−100.0% | Sold out |
| Artemis Wealth Advisors, LLC | 0 | $0 | 0.00% | −314−100.0% | Sold out |
| CVA Family Office, LLC | 0 | $0 | 0.00% | −180−100.0% | Sold out |
| Worth Asset Management, LLC | 0 | $0 | 0.00% | −102−100.0% | Sold out |
| West Tower Group, LLC | 0 | $0 | 0.00% | −63−100.0% | Sold out |
| Antipodes Partners Ltd | 0 | $0 | 0.00% | −56−100.0% | Sold out |
| Disciplined Investments, LLC | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| 25 LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| EA Series Trust | – | – | – | – | Not filed |
| Pictet Asset Management SA | – | – | – | – | Not filed |
| Kistler-Tiffany Companies, LLC | – | – | – | – | Not filed |