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 2023
Institutional positions in Westlake Corp as of Mar 31, 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
- 342
- +6 vs. Q4 2022
- Shares held
- 38.3M
- +1.96M (+5.4%) vs. Q4 2022
- Total value
- $4.40B
- +$671.8M (+18.0%) vs. Q4 2022
- New holders
- 49
- 108 more added
- Sold out
- 43
- 123 more reduced
8 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ameriprise Financial Inc | 131,759 | $15.3M | 0.01% | +1,123+0.9% | Added |
| Principal Financial Group Inc | 136,136 | $15.8M | 0.01% | +1,228+0.9% | Added |
| Guggenheim Capital LLC | 139,562 | $16.2M | 0.14% | −7,834−5.3% | Reduced |
| Bank of America Corp | 142,988 | $16.6M | 0.00% | −355,429−71.3% | Reduced |
| Scout Investments, Inc. | 144,702 | $16.8M | 0.34% | −164−0.1% | Reduced |
| Man Group plc | – | $17.1M | 0.06% | – | – |
| Swiss National Bank | 151,700 | $17.6M | 0.01% | −4,000−2.6% | Reduced |
| Storebrand Asset Management AS | 155,687 | $18.1M | 0.09% | +2,726+1.8% | Added |
| American Century Companies Inc | 162,037 | $18.8M | 0.01% | +140,653+657.7% | Added |
| Erste Asset Management GmbH | 163,551 | $18.9M | 0.36% | +19,518+13.6% | Added |
| Janus Henderson Group PLC | 195,629 | $22.7M | 0.01% | −31,946−14.0% | Reduced |
| Legal & General Group Plc | 227,405 | $26.4M | 0.01% | −1,316−0.6% | Reduced |
| Robotti Robert | 229,216 | $26.6M | 4.68% | −510.0% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 236,700 | $27.5M | 0.14% | −7,100−2.9% | Reduced |
| Invesco Ltd. | 251,308 | $29.1M | 0.01% | −12,542−4.8% | Reduced |
| Appian Way Asset Management LP | 253,283 | $29.4M | 10.09% | +104,583+70.3% | Added |
| Caisse de Depot Et Placement du Quebec | 260,912 | $30.3M | 0.09% | +260,912 | New |
| Northern Trust Corp | 303,314 | $35.2M | 0.01% | −4,223−1.4% | Reduced |
| ProShare Advisors LLC | 312,639 | $36.3M | 0.11% | +294,948+1,667.2% | Added |
| Morgan Stanley | 331,898 | $38.5M | 0.00% | +11,923+3.7% | Added |
| Norges Bank | 332,282 | $38.5M | 0.01% | +22,948+7.4% | Added |
| Allspring Global Investments Holdings, LLC | 343,683 | $39.9M | 0.07% | −22,265−6.1% | Reduced |
| Charles Schwab Investment Management Inc | 344,800 | $40.0M | 0.01% | +6,858+2.0% | Added |
| Bank of New York Mellon Corp | 416,392 | $48.3M | 0.01% | −16,937−3.9% | Reduced |
| AQR Capital Management LLC | 469,482 | $53.6M | 0.12% | −89,786−16.1% | Reduced |
| Geode Capital Management, LLC | 470,466 | $54.5M | 0.01% | +19,466+4.3% | Added |
| Federated Hermes, Inc. | 477,323 | $55.4M | 0.14% | +220,791+86.1% | Added |
| Nuveen Asset Management, LLC | 550,659 | $63.9M | 0.02% | −78,361−12.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 568,575 | $65.9M | 0.15% | +48,466+9.3% | Added |
| Balyasny Asset Management LLC | 610,892 | $70.9M | 0.23% | +493,432+420.1% | Added |
| Goldman Sachs Group Inc | 737,441 | $85.5M | 0.02% | −99,964−11.9% | Reduced |
| First Trust Advisors LP | 1,025,242 | $118.9M | 0.14% | +64,504+6.7% | Added |
| State Street Corp | 1,144,072 | $132.7M | 0.01% | +19,052+1.7% | Added |
| Pacer Advisors, Inc. | 1,187,394 | $137.7M | 0.59% | +174,908+17.3% | Added |
| Citadel Advisors LLC | 1,226,376 | $142.2M | 0.16% | +871,295+245.4% | Added |
| Soroban Capital Partners LP | 1,352,861 | $156.9M | 2.15% | −668,813−33.1% | Reduced |
| Dimensional Fund Advisors LP | 1,470,450 | $170.5M | 0.06% | −238,385−14.0% | Reduced |
| Orbis Allan Gray Ltd | 2,061,900 | $239.1M | 1.88% | +105,650+5.4% | Added |
| Victory Capital Management Inc | 3,320,729 | $385.1M | 0.43% | +81,059+2.5% | Added |
| Vanguard Group Inc | 3,461,752 | $401.5M | 0.01% | +5,230+0.2% | Added |
| BlackRock Inc. | 3,566,918 | $413.7M | 0.01% | −27,942−0.8% | Reduced |
| FMR LLC | 4,224,641 | $490.0M | 0.04% | +629,978+17.5% | Added |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −152,699−100.0% | Sold out |
| Yaupon Capital Management LP | 0 | $0 | 0.00% | −76,639−100.0% | Sold out |
| Brookfield Asset Management Inc. | 0 | $0 | 0.00% | −45,676−100.0% | Sold out |
| Empowered Funds, LLC | 0 | $0 | 0.00% | −41,075−100.0% | Sold out |
| Covalis Capital LLP | 0 | $0 | 0.00% | −21,658−100.0% | Sold out |
| PEAK6 Investments LLC | 0 | $0 | 0.00% | −21,091−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −16,800−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −15,138−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −12,384−100.0% | Sold out |
| Bokf, NA | 0 | $0 | 0.00% | −11,879−100.0% | Sold out |
| Paradigm Capital Management Inc | 0 | $0 | 0.00% | −11,600−100.0% | Sold out |
| Valeo Financial Advisors, LLC | 0 | $0 | 0.00% | −10,786−100.0% | Sold out |
| Sagefield Capital LP | 0 | $0 | 0.00% | −9,590−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −8,049−100.0% | Sold out |
| Cetera Advisor Networks LLC | 0 | $0 | 0.00% | −7,638−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −7,012−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −6,647−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −6,045−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −4,997−100.0% | Sold out |
| CIBC Asset Management Inc | 0 | $0 | 0.00% | −4,162−100.0% | Sold out |
| AdvisorShares Investments LLC | 0 | $0 | 0.00% | −4,013−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −3,919−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −3,352−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −3,152−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −2,927−100.0% | Sold out |
| Blueshift Asset Management, LLC | 0 | $0 | 0.00% | −2,807−100.0% | Sold out |
| 3Chopt Investment Partners, LLC | 0 | $0 | 0.00% | −2,290−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −2,115−100.0% | Sold out |
| Ossiam | 0 | $0 | 0.00% | −703−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −452−100.0% | Sold out |
| Gyon Technologies Capital Management, LP | 0 | $0 | 0.00% | −313−100.0% | Sold out |
| Accurate Wealth Management, LLC | 0 | $0 | 0.00% | −175−100.0% | Sold out |
| Beacon Capital Management, LLC | 0 | $0 | 0.00% | −155−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −41−100.0% | Sold out |
| Crewe Advisors LLC | 0 | $0 | 0.00% | −27−100.0% | Sold out |
| Creative Planning | 0 | $0 | 0.00% | −26−100.0% | Sold out |
| NewSquare Capital LLC | 0 | $0 | 0.00% | −17−100.0% | Sold out |
| Colonial Trust Co | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| My Personal CFO, LLC | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| McElhenny Sheffield Capital Management, LLC | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Zions Bancorporation, N.A. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Sutton Wealth Advisors Inc. | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Ronald Blue Trust, Inc. | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Comerica Bank | – | – | – | – | Not filed |
| Alaska Permanent Fund Corp | – | – | – | – | Not filed |
| CFO4Life, L.P. | – | – | – | – | Not filed |
| Alpha Paradigm Partners, LLC | – | – | – | – | Not filed |
| Neo Ivy Capital Management | – | – | – | – | Not filed |
| Seeyond | – | – | – | – | Not filed |
| CoreCap Advisors, LLC | – | – | – | – | Not filed |
| Heritage Wealth Management, LLC | – | – | – | – | Not filed |