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 |
|---|---|---|---|---|---|
| Victory Capital Management Inc | 3,900,025 | $390.1M | 0.40% | +586,178+17.7% | Added |
| BlackRock, Inc. | 3,660,406 | $366.2M | 0.01% | +2,511+0.1% | Added |
| Vanguard Group Inc | 3,550,310 | $355.1M | 0.01% | −327,663−8.4% | Reduced |
| State Street Corp | 1,630,106 | $163.1M | 0.01% | +435,857+36.5% | Added |
| FMR LLC | 1,548,866 | $154.9M | 0.01% | +110,263+7.7% | Added |
| Capital World Investors | 1,290,128 | $129.1M | 0.02% | +2,627+0.2% | Added |
| Goldman Sachs Group Inc | 1,041,190 | $104.2M | 0.02% | +102,268+10.9% | Added |
| Dimensional Fund Advisors LP | 939,669 | $94.0M | 0.02% | +5,547+0.6% | Added |
| Millennium Management LLC | 901,229 | $90.1M | 0.09% | +708,142+366.7% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 853,831 | $85.4M | 0.18% | −28,643−3.2% | Reduced |
| Citadel Advisors LLC | 852,856 | $85.3M | 0.08% | +172,525+25.4% | Added |
| Jacobs Levy Equity Management, Inc | 775,801 | $77.6M | 0.31% | −23,449−2.9% | Reduced |
| Nuveen, LLC | 729,521 | $73.0M | 0.02% | +729,521 | New |
| Ilex Capital Partners (UK) LLP | 699,007 | $69.9M | 2.86% | +546,991+359.8% | Added |
| UBS Group AG | 609,078 | $60.9M | 0.01% | +51,518+9.2% | Added |
| Geode Capital Management, LLC | 576,779 | $57.6M | 0.00% | +18,836+3.4% | Added |
| Allspring Global Investments Holdings, LLC | 551,766 | $55.2M | 0.10% | +175,306+46.6% | Added |
| Balyasny Asset Management LLC | 521,876 | $52.2M | 0.13% | −471,274−47.5% | Reduced |
| Brandes Investment Partners, LP | 421,020 | $42.1M | 0.43% | +421,020 | New |
| ExodusPoint Capital Management, LP | 417,760 | $41.8M | 0.55% | +72,970+21.2% | Added |
| Janus Henderson Group PLC | 394,521 | $39.1M | 0.02% | +22,325+6.0% | Added |
| UBS Asset Management Americas Inc | 371,175 | $37.1M | 0.01% | +24,386+7.0% | Added |
| Norges Bank | 368,875 | $36.9M | 0.01% | −37,837−9.3% | Reduced |
| Voloridge Investment Management, LLC | 346,970 | $34.7M | 0.13% | +127,940+58.4% | Added |
| Northern Trust Corp | 314,618 | $31.5M | 0.00% | +8,955+2.9% | Added |
| Renaissance Technologies LLC | 280,100 | $28.0M | 0.04% | −70,600−20.1% | Reduced |
| Two Sigma Investments, LP | 266,071 | $26.6M | 0.06% | +161,751+155.1% | Added |
| Morgan Stanley | 262,556 | $26.3M | 0.00% | −38,994−12.9% | Reduced |
| ProShare Advisors LLC | 260,323 | $26.0M | 0.06% | +11,272+4.5% | Added |
| Schroder Investment Management Group | 249,546 | $24.7M | 0.02% | −114,728−31.5% | Reduced |
| Charles Schwab Investment Management Inc | 244,497 | $24.5M | 0.00% | +8,143+3.4% | Added |
| Squarepoint Ops LLC | 232,058 | $23.2M | 0.06% | +53,753+30.1% | Added |
| Deprince Race & Zollo Inc | 230,488 | $23.1M | 0.48% | +12,209+5.6% | Added |
| D. E. Shaw & Co., Inc. | 228,357 | $22.8M | 0.03% | −24,390−9.6% | Reduced |
| Bank of America Corp | 221,443 | $22.2M | 0.00% | +171,247+341.2% | Added |
| Bank of New York Mellon Corp | 219,679 | $22.0M | 0.00% | −6,297−2.8% | Reduced |
| Bank of Montreal | 210,224 | $21.0M | 0.01% | +60,650+40.5% | Added |
| Alyeska Investment Group, L.P. | 192,876 | $19.3M | 0.08% | +87,675+83.3% | Added |
| First Trust Advisors LP | 166,559 | $16.7M | 0.01% | −660,957−79.9% | Reduced |
| Two Sigma Advisers, LP | 166,100 | $16.6M | 0.04% | +63,100+61.3% | Added |
| Robotti Robert | 164,696 | $16.5M | 3.30% | +397+0.2% | Added |
| 1832 Asset Management L.P. | 153,740 | $15.4M | 0.03% | −222,260−59.1% | Reduced |
| Erste Asset Management GmbH | 153,201 | $15.3M | 0.20% | +12,000+8.5% | Added |
| Legal & General Group Plc | 144,995 | $14.5M | 0.00% | −12,653−8.0% | Reduced |
| Man Group plc | 140,891 | $14.1M | 0.04% | +102,092+263.1% | Added |
| Invesco Ltd. | 134,380 | $13.4M | 0.00% | −13,636−9.2% | Reduced |
| JPMorgan Chase & Co | 129,035 | $12.9M | 0.00% | +17,806+16.0% | Added |
| Quantinno Capital Management LP | 127,513 | $12.8M | 0.08% | +38,924+43.9% | Added |
| Ameriprise Financial Inc | 118,923 | $11.9M | 0.00% | +11,527+10.7% | Added |
| Drummond Knight Asset Management Pty Ltd | 117,231 | $11.7M | 5.89% | +32,231+37.9% | Added |
| Russell Investments Group, Ltd. | 116,603 | $11.7M | 0.02% | −13,068−10.1% | Reduced |
| Qube Research & Technologies Ltd | 115,800 | $11.6M | 0.02% | −2,920−2.5% | Reduced |
| Raymond James Financial Inc | 112,945 | $11.3M | 0.00% | −4,028−3.4% | Reduced |
| Lazard Asset Management LLC | 111,513 | $11.2M | 0.02% | +12,081+12.2% | Added |
| Swiss National Bank | 109,000 | $10.9M | 0.01% | 00.0% | Unchanged |
| Barclays PLC | 106,820 | $10.7M | 0.00% | −25,896−19.5% | Reduced |
| Storebrand Asset Management AS | 106,745 | $10.7M | 0.03% | −5,719−5.1% | Reduced |
| Rhumbline Advisers | 100,439 | $10.0M | 0.01% | +2,383+2.4% | Added |
| Holocene Advisors, LP | 99,073 | $9.91M | 0.03% | +49,769+100.9% | Added |
| Wedge Capital Management L L P | 94,638 | $9.47M | 0.18% | +15,460+19.5% | Added |
| Walnut Level Capital LLC | 92,500 | $9.25M | 7.39% | +20,215+28.0% | Added |
| Sprott Inc. | 90,000 | $9.00M | 0.53% | +25,000+38.5% | Added |
| Jane Street Group, LLC | 85,940 | $8.60M | 0.02% | +78,256+1,018.4% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 79,089 | $7.91M | 0.01% | −374−0.5% | Reduced |
| Principal Financial Group Inc | 76,996 | $7.70M | 0.00% | +315+0.4% | Added |
| Cerity Partners LLC | 74,928 | $7.50M | 0.02% | −7,685−9.3% | Reduced |
| HITE Hedge Asset Management LLC | 71,475 | $7.15M | 0.44% | +10,827+17.9% | Added |
| Alliancebernstein L.P. | 68,469 | $6.85M | 0.00% | +4,746+7.4% | Added |
| HRT Financial LP | 68,304 | $6.83M | 0.04% | +68,304 | New |
| Wells Fargo & Company | 61,206 | $6.12M | 0.00% | +8,491+16.1% | Added |
| Janney Montgomery Scott LLC | 61,134 | $6.12M | 0.02% | +1,635+2.7% | Added |
| California Public Employees Retirement System | 58,830 | $5.88M | 0.00% | −704−1.2% | Reduced |
| SG Americas Securities, LLC | 57,560 | $5.76M | 0.02% | −42,567−42.5% | Reduced |
| Verition Fund Management LLC | 51,511 | $5.15M | 0.03% | −9,641−15.8% | Reduced |
| Amundi | 50,770 | $4.78M | 0.00% | −227,559−81.8% | Reduced |
| Thomist Capital Management, LP | 46,100 | $4.57M | 1.92% | +46,100 | New |
| California State Teachers Retirement System | 45,195 | $4.52M | 0.01% | +84+0.2% | Added |
| Retirement Systems of Alabama | 40,729 | $4.07M | 0.02% | +40+0.1% | Added |
| Canada Pension Plan Investment Board | 39,364 | $3.94M | 0.00% | −22,477−36.3% | Reduced |
| Royal Bank of Canada | 38,687 | $3.87M | 0.00% | +18,321+90.0% | Added |
| Corebridge Financial, Inc. | 36,963 | $3.70M | 0.02% | −902−2.4% | Reduced |
| Graham Capital Management, L.P. | 36,754 | $3.68M | 0.12% | +18,904+105.9% | Added |
| Walleye Capital LLC | 34,377 | $3.44M | 0.04% | +27,672+412.7% | Added |
| Deutsche Bank AG | 33,230 | $3.32M | 0.00% | −5,353−13.9% | Reduced |
| Weiss Asset Management LP | 31,702 | $3.17M | 0.08% | +31,702 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 30,900 | $3.09M | 0.01% | +10,600+52.2% | Added |
| Comerica Bank | 30,638 | $3.06M | 0.01% | +1,038+3.5% | Added |
| LPL Financial LLC | 30,421 | $3.04M | 0.00% | +4,493+17.3% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 29,692 | $2.97M | 0.00% | +296+1.0% | Added |
| ING Groep NV | 29,600 | $2.96M | 0.02% | +7,300+32.7% | Added |
| Danske Bank A/S | 28,712 | $2.87M | 0.01% | −2,400−7.7% | Reduced |
| Citigroup Inc | 28,252 | $2.83M | 0.00% | −4,885−14.7% | Reduced |
| State Board of Administration of Florida Retirement System | 27,975 | $2.80M | 0.01% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 27,969 | $2.80M | 0.00% | +4,862+21.0% | Added |
| State of Alaska, Department of Revenue | 27,858 | $2.79M | 0.03% | +105+0.4% | Added |
| Magnetar Financial LLC | 27,277 | $2.73M | 0.04% | +27,277 | New |
| National Bank of Canada | 26,974 | $2.70M | 0.00% | −20.0% | Reduced |
| KBC Group NV | 26,695 | $2.67M | 0.01% | −560−2.1% | Reduced |
| Envestnet Asset Management Inc | 26,535 | $2.65M | 0.00% | +8,258+45.2% | Added |
| BNP Paribas Arbitrage, SA | 26,356 | $2.64M | 0.00% | −48,759−64.9% | Reduced |