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 |
|---|---|---|---|---|---|
| Wedge Capital Management L L P | 94,638 | $9.47M | 0.18% | +15,460+19.5% | Added |
| Holocene Advisors, LP | 99,073 | $9.91M | 0.03% | +49,769+100.9% | Added |
| Rhumbline Advisers | 100,439 | $10.0M | 0.01% | +2,383+2.4% | Added |
| Storebrand Asset Management AS | 106,745 | $10.7M | 0.03% | −5,719−5.1% | Reduced |
| Barclays PLC | 106,820 | $10.7M | 0.00% | −25,896−19.5% | Reduced |
| Swiss National Bank | 109,000 | $10.9M | 0.01% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 111,513 | $11.2M | 0.02% | +12,081+12.2% | Added |
| Raymond James Financial Inc | 112,945 | $11.3M | 0.00% | −4,028−3.4% | Reduced |
| Qube Research & Technologies Ltd | 115,800 | $11.6M | 0.02% | −2,920−2.5% | Reduced |
| Russell Investments Group, Ltd. | 116,603 | $11.7M | 0.02% | −13,068−10.1% | Reduced |
| Drummond Knight Asset Management Pty Ltd | 117,231 | $11.7M | 5.89% | +32,231+37.9% | Added |
| Ameriprise Financial Inc | 118,923 | $11.9M | 0.00% | +11,527+10.7% | Added |
| Quantinno Capital Management LP | 127,513 | $12.8M | 0.08% | +38,924+43.9% | Added |
| JPMorgan Chase & Co | 129,035 | $12.9M | 0.00% | +17,806+16.0% | Added |
| Invesco Ltd. | 134,380 | $13.4M | 0.00% | −13,636−9.2% | Reduced |
| Man Group plc | 140,891 | $14.1M | 0.04% | +102,092+263.1% | Added |
| Legal & General Group Plc | 144,995 | $14.5M | 0.00% | −12,653−8.0% | Reduced |
| Erste Asset Management GmbH | 153,201 | $15.3M | 0.20% | +12,000+8.5% | Added |
| 1832 Asset Management L.P. | 153,740 | $15.4M | 0.03% | −222,260−59.1% | Reduced |
| Robotti Robert | 164,696 | $16.5M | 3.30% | +397+0.2% | Added |
| Two Sigma Advisers, LP | 166,100 | $16.6M | 0.04% | +63,100+61.3% | Added |
| First Trust Advisors LP | 166,559 | $16.7M | 0.01% | −660,957−79.9% | Reduced |
| Alyeska Investment Group, L.P. | 192,876 | $19.3M | 0.08% | +87,675+83.3% | Added |
| Bank of Montreal | 210,224 | $21.0M | 0.01% | +60,650+40.5% | Added |
| Bank of New York Mellon Corp | 219,679 | $22.0M | 0.00% | −6,297−2.8% | Reduced |
| Bank of America Corp | 221,443 | $22.2M | 0.00% | +171,247+341.2% | Added |
| D. E. Shaw & Co., Inc. | 228,357 | $22.8M | 0.03% | −24,390−9.6% | Reduced |
| Deprince Race & Zollo Inc | 230,488 | $23.1M | 0.48% | +12,209+5.6% | Added |
| Squarepoint Ops LLC | 232,058 | $23.2M | 0.06% | +53,753+30.1% | Added |
| Charles Schwab Investment Management Inc | 244,497 | $24.5M | 0.00% | +8,143+3.4% | Added |
| Schroder Investment Management Group | 249,546 | $24.7M | 0.02% | −114,728−31.5% | Reduced |
| ProShare Advisors LLC | 260,323 | $26.0M | 0.06% | +11,272+4.5% | Added |
| Morgan Stanley | 262,556 | $26.3M | 0.00% | −38,994−12.9% | Reduced |
| Two Sigma Investments, LP | 266,071 | $26.6M | 0.06% | +161,751+155.1% | Added |
| Renaissance Technologies LLC | 280,100 | $28.0M | 0.04% | −70,600−20.1% | Reduced |
| Northern Trust Corp | 314,618 | $31.5M | 0.00% | +8,955+2.9% | Added |
| Voloridge Investment Management, LLC | 346,970 | $34.7M | 0.13% | +127,940+58.4% | Added |
| Norges Bank | 368,875 | $36.9M | 0.01% | −37,837−9.3% | Reduced |
| UBS Asset Management Americas Inc | 371,175 | $37.1M | 0.01% | +24,386+7.0% | Added |
| Janus Henderson Group PLC | 394,521 | $39.1M | 0.02% | +22,325+6.0% | Added |
| ExodusPoint Capital Management, LP | 417,760 | $41.8M | 0.55% | +72,970+21.2% | Added |
| Brandes Investment Partners, LP | 421,020 | $42.1M | 0.43% | +421,020 | New |
| Balyasny Asset Management LLC | 521,876 | $52.2M | 0.13% | −471,274−47.5% | Reduced |
| Allspring Global Investments Holdings, LLC | 551,766 | $55.2M | 0.10% | +175,306+46.6% | Added |
| Geode Capital Management, LLC | 576,779 | $57.6M | 0.00% | +18,836+3.4% | Added |
| UBS Group AG | 609,078 | $60.9M | 0.01% | +51,518+9.2% | Added |
| Ilex Capital Partners (UK) LLP | 699,007 | $69.9M | 2.86% | +546,991+359.8% | Added |
| Nuveen, LLC | 729,521 | $73.0M | 0.02% | +729,521 | New |
| Jacobs Levy Equity Management, Inc | 775,801 | $77.6M | 0.31% | −23,449−2.9% | Reduced |
| Citadel Advisors LLC | 852,856 | $85.3M | 0.08% | +172,525+25.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 853,831 | $85.4M | 0.18% | −28,643−3.2% | Reduced |
| Millennium Management LLC | 901,229 | $90.1M | 0.09% | +708,142+366.7% | Added |
| Dimensional Fund Advisors LP | 939,669 | $94.0M | 0.02% | +5,547+0.6% | Added |
| Goldman Sachs Group Inc | 1,041,190 | $104.2M | 0.02% | +102,268+10.9% | Added |
| Capital World Investors | 1,290,128 | $129.1M | 0.02% | +2,627+0.2% | Added |
| FMR LLC | 1,548,866 | $154.9M | 0.01% | +110,263+7.7% | Added |
| State Street Corp | 1,630,106 | $163.1M | 0.01% | +435,857+36.5% | Added |
| Vanguard Group Inc | 3,550,310 | $355.1M | 0.01% | −327,663−8.4% | Reduced |
| BlackRock, Inc. | 3,660,406 | $366.2M | 0.01% | +2,511+0.1% | Added |
| Victory Capital Management Inc | 3,900,025 | $390.1M | 0.40% | +586,178+17.7% | Added |
| 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 |