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 2022
Institutional positions in Westlake Corp as of Mar 31, 2022. 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
- 328
- +32 vs. Q4 2021
- Shares held
- 35.5M
- +880.8K (+2.5%) vs. Q4 2021
- Total value
- $4.38B
- +$1.02B (+30.2%) vs. Q4 2021
- New holders
- 72
- 97 more added
- Sold out
- 40
- 115 more reduced
2 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2022
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Victory Capital Management Inc | 4,042,857 | $499.0M | 0.50% | −26,465−0.7% | Reduced |
| Vanguard Group Inc | 4,036,201 | $498.1M | 0.01% | −17,245−0.4% | Reduced |
| Dimensional Fund Advisors LP | 2,279,597 | $281.3M | 0.09% | −7260.0% | Reduced |
| Soroban Capital Partners LP | 1,773,725 | $218.9M | 1.81% | +584,616+49.2% | Added |
| FMR LLC | 1,730,249 | $213.5M | 0.02% | +619,441+55.8% | Added |
| BlackRock Inc. | 1,559,105 | $192.4M | 0.01% | −160,676−9.3% | Reduced |
| Federated Hermes, Inc. | 1,297,300 | $160.1M | 0.36% | +588,163+82.9% | Added |
| Price T Rowe Associates Inc | 1,163,400 | $143.6M | 0.01% | −73,640−6.0% | Reduced |
| Acadian Asset Management LLC | 836,026 | $103.2M | 0.43% | −128,833−13.4% | Reduced |
| Prudential Financial Inc | 824,280 | $101.7M | 0.14% | −177,012−17.7% | Reduced |
| First Trust Advisors LP | 802,507 | $99.0M | 0.10% | +524,828+189.0% | Added |
| Goldman Sachs Group Inc | 794,765 | $98.1M | 0.02% | −155,666−16.4% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 708,381 | $87.4M | 0.18% | −57,880−7.6% | Reduced |
| Nuveen Asset Management, LLC | 575,250 | $72.2M | 0.02% | +399,902+228.1% | Added |
| State Street Corp | 538,703 | $66.5M | 0.00% | +16,281+3.1% | Added |
| AQR Capital Management LLC | 524,598 | $64.7M | 0.12% | +10,015+1.9% | Added |
| Morgan Stanley | 459,878 | $56.7M | 0.01% | −199,364−30.2% | Reduced |
| Fort Pitt Capital Group, LLC | 446,358 | $55.1M | 2.05% | −165,597−27.1% | Reduced |
| Bank of America Corp | 441,333 | $54.5M | 0.01% | +86,852+24.5% | Added |
| Geode Capital Management, LLC | 423,921 | $52.3M | 0.01% | +12,369+3.0% | Added |
| Allspring Global Investments Holdings, LLC | 415,726 | $51.3M | 0.06% | −1,304−0.3% | Reduced |
| Norges Bank | 337,940 | $41.7M | 0.01% | +5,106+1.5% | Added |
| Janus Henderson Group PLC | 335,939 | $41.5M | 0.02% | −120,912−26.5% | Reduced |
| Charles Schwab Investment Management Inc | 304,912 | $37.6M | 0.01% | +7,178+2.4% | Added |
| Pacer Advisors, Inc. | 300,278 | $37.1M | 0.30% | +197,013+190.8% | Added |
| Wells Fargo & Company | 270,534 | $33.4M | 0.01% | +4,936+1.9% | Added |
| Scout Investments, Inc. | 256,593 | $31.7M | 0.51% | −7,733−2.9% | Reduced |
| Bank of New York Mellon Corp | 243,246 | $30.0M | 0.01% | +10,077+4.3% | Added |
| UBS Asset Management Americas Inc | 238,722 | $29.5M | 0.01% | +178,390+295.7% | Added |
| Robotti Robert | 229,814 | $28.4M | 5.74% | +97,865+74.2% | Added |
| Scopus Asset Management, L.P. | 226,750 | $28.0M | 1.05% | −15,000−6.2% | Reduced |
| Jacobs Levy Equity Management, Inc | 226,141 | $27.9M | 0.19% | −96,983−30.0% | Reduced |
| Deutsche Bank AG | 219,684 | $27.1M | 0.01% | −95,297−30.3% | Reduced |
| Citadel Advisors LLC | 206,956 | $25.5M | 0.03% | +12,065+6.2% | Added |
| Virginia Retirement Systems Et Al | 187,800 | $23.2M | 0.22% | −62,000−24.8% | Reduced |
| Wellington Management Group LLP | 182,245 | $22.5M | 0.00% | −3,836−2.1% | Reduced |
| Northern Trust Corp | 178,276 | $22.0M | 0.00% | −123−0.1% | Reduced |
| Panagora Asset Management Inc | 177,045 | $21.8M | 0.12% | +113,138+177.0% | Added |
| Legal & General Group Plc | 170,421 | $21.0M | 0.01% | +33,489+24.5% | Added |
| Smith Group Asset Management, LLC | 162,641 | $20.0M | 1.06% | −1,698−1.0% | Reduced |
| Parametric Portfolio Associates LLC | 150,830 | $18.6M | 0.01% | −932−0.6% | Reduced |
| Adage Capital Partners GP, L.L.C. | 150,000 | $18.5M | 0.04% | −50,000−25.0% | Reduced |
| Guggenheim Capital LLC | 147,382 | $18.2M | 0.11% | −1,399−0.9% | Reduced |
| Glenmede Trust Co NA | 134,688 | $16.6M | 0.08% | −2,061−1.5% | Reduced |
| Man Group plc | 120,495 | $14.9M | 0.05% | +90,243+298.3% | Added |
| Ameriprise Financial Inc | 118,879 | $14.7M | 0.00% | −1,812−1.5% | Reduced |
| Millennium Management LLC | 116,026 | $14.3M | 0.02% | −24,767−17.6% | Reduced |
| Invesco Ltd. | 115,541 | $14.3M | 0.00% | +28,904+33.4% | Added |
| Thrivent Financial for Lutherans | 110,204 | $13.6M | 0.03% | +26,706+32.0% | Added |
| Sprott Inc. | 110,000 | $13.6M | 0.96% | −10,000−8.3% | Reduced |
| Macquarie Group Ltd | 108,322 | $13.4M | 0.01% | −3,830−3.4% | Reduced |
| BNP Paribas Arbitrage, SA | 104,702 | $12.9M | 0.03% | +9,661+10.2% | Added |
| Erste Asset Management GmbH | 102,000 | $12.6M | 0.24% | −32,000−23.9% | Reduced |
| Brandes Investment Partners, LP | 98,786 | $12.2M | 0.26% | −40,009−28.8% | Reduced |
| Swiss National Bank | 90,600 | $11.2M | 0.01% | +5,900+7.0% | Added |
| Barclays PLC | 88,810 | $11.0M | 0.01% | −3,786−4.1% | Reduced |
| Marshall Wace, LLP | 88,325 | $10.9M | 0.02% | +84,338+2,115.3% | Added |
| Zacks Investment Management | 86,162 | $10.6M | 0.15% | +48,087+126.3% | Added |
| Luminus Management LLC | 79,900 | $9.86M | 2.21% | +79,900 | New |
| Alliancebernstein L.P. | 77,208 | $9.53M | 0.00% | +25,554+49.5% | Added |
| Winmill & Co. Inc | 70,000 | $8.64M | 2.63% | −4,000−5.4% | Reduced |
| Schroder Investment Management Group | 67,595 | $8.43M | 0.01% | −16,095−19.2% | Reduced |
| Covalis Capital LLP | 67,220 | $8.29M | 2.43% | +67,220 | New |
| Wedge Capital Management L L P | 66,169 | $8.16M | 0.11% | −26,033−28.2% | Reduced |
| Contravisory Investment Management, Inc. | 65,616 | $8.10M | 2.30% | −1,227−1.8% | Reduced |
| Cubist Systematic Strategies, LLC | 64,281 | $7.93M | 0.07% | −58,896−47.8% | Reduced |
| Assenagon Asset Management S.A. | 62,969 | $7.77M | 0.03% | +37,589+148.1% | Added |
| Vident Investment Advisory, LLC | 61,742 | $7.62M | 0.20% | +16,900+37.7% | Added |
| Distillate Capital Partners LLC | 61,739 | $7.62M | 1.08% | +16,281+35.8% | Added |
| SEI Investments Co | 60,757 | $7.48M | 0.02% | −2,139−3.4% | Reduced |
| Citigroup Inc | 59,648 | $7.36M | 0.01% | −4,162−6.5% | Reduced |
| STRS Ohio | 58,773 | $7.25M | 0.03% | +18,162+44.7% | Added |
| Squarepoint Ops LLC | 58,093 | $7.17M | 0.05% | −15,406−21.0% | Reduced |
| Teachers Retirement System of the State of Kentucky | 56,567 | $6.98M | 0.07% | +56,567 | New |
| JPMorgan Chase & Co | 54,547 | $6.73M | 0.00% | −19,213−26.0% | Reduced |
| Trexquant Investment LP | 52,484 | $6.48M | 0.30% | +42,229+411.8% | Added |
| Russell Investments Group, Ltd. | 51,932 | $6.45M | 0.01% | −29,858−36.5% | Reduced |
| Ambassador Advisors, LLC | 51,823 | $6.39M | 1.24% | +4,426+9.3% | Added |
| Verition Fund Management LLC | 51,353 | $6.34M | 0.12% | −16,972−24.8% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 50,670 | $6.25M | 0.03% | +18,225+56.2% | Added |
| Royal Bank of Canada | 47,209 | $5.83M | 0.00% | −8,849−15.8% | Reduced |
| California State Teachers Retirement System | 46,983 | $5.80M | 0.01% | −3,745−7.4% | Reduced |
| Smith, Graham & Co., Investment Advisors, LP | 44,771 | $5.53M | 0.57% | +1,515+3.5% | Added |
| SG Capital Management LLC | 44,496 | $5.49M | 2.69% | +44,496 | New |
| ExodusPoint Capital Management, LP | 44,381 | $5.48M | 0.08% | −47,998−52.0% | Reduced |
| State of Tennessee, Treasury Department | 42,576 | $5.25M | 0.02% | 00.0% | Unchanged |
| Voloridge Investment Management, LLC | 40,436 | $4.99M | 0.03% | +27,445+211.3% | Added |
| New York State Common Retirement Fund | 37,874 | $4.67M | 0.00% | −2,016−5.1% | Reduced |
| Empowered Funds, LLC | 37,277 | $4.60M | 0.50% | −14,765−28.4% | Reduced |
| State Board of Administration of Florida Retirement System | 36,856 | $4.55M | 0.01% | −3,113−7.8% | Reduced |
| Credit Suisse AG | 35,947 | $4.44M | 0.00% | +1,810+5.3% | Added |
| Churchill Management Corp | 35,583 | $4.39M | 0.08% | +35,583 | New |
| CIBC World Markets Inc. | 33,336 | $4.11M | 0.01% | +33,336 | New |
| Royal London Asset Management Ltd | 33,135 | $4.09M | 0.02% | +300+0.9% | Added |
| ClariVest Asset Management LLC | 32,509 | $4.01M | 0.16% | −3,600−10.0% | Reduced |
| Envestnet Asset Management Inc | 30,968 | $3.82M | 0.00% | +656+2.2% | Added |
| Amundi | 33,129 | $3.76M | 0.00% | −4,856−12.8% | Reduced |
| Rhumbline Advisers | 29,862 | $3.69M | 0.00% | −2,441−7.6% | Reduced |
| Franklin Resources Inc | 27,983 | $3.45M | 0.00% | −771−2.7% | Reduced |
| PEAK6 Investments LLC | 25,730 | $3.17M | 0.09% | +25,730 | New |