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, Q4 2023
Institutional positions in Westlake Corp as of Dec 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
- 357
- +28 vs. Q3 2023
- Shares held
- 36.0M
- −1.11M (−3.0%) vs. Q3 2023
- Total value
- $5.04B
- +$412.6M (+8.9%) vs. Q3 2023
- New holders
- 57
- 103 more added
- Sold out
- 29
- 137 more reduced
6 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Inspire Advisors, LLC | 8,818 | $1.23M | 0.19% | +8,818 | New |
| Louisiana State Employees Retirement System | 9,000 | $1.26M | 0.03% | 00.0% | Unchanged |
| B. Metzler seel. Sohn & Co. AG | 9,000 | $1.26M | 0.02% | +9,000 | New |
| Jane Street Group, LLC | 9,161 | $1.28M | 0.00% | −24,596−72.9% | Reduced |
| Quantbot Technologies LP | 9,983 | $1.40M | 0.08% | +9,983 | New |
| Nations Financial Group Inc, | 9,995 | $1.40M | 0.13% | +154+1.6% | Added |
| Nomura Asset Management Co Ltd | 10,107 | $1.41M | 0.01% | 00.0% | Unchanged |
| Recurrent Investment Advisors LLC | 10,161 | $1.42M | 0.21% | −3,898−27.7% | Reduced |
| DnB Asset Management AS | 10,341 | $1.45M | 0.01% | −8,086−43.9% | Reduced |
| Cresset Asset Management, LLC | 10,395 | $1.45M | 0.01% | +1,014+10.8% | Added |
| Arizona State Retirement System | 10,528 | $1.47M | 0.01% | +81+0.8% | Added |
| Federation des caisses Desjardins du Quebec | 10,674 | $1.49M | 0.01% | +9,281+666.3% | Added |
| Standard Life Aberdeen plc | 11,223 | $1.57M | 0.00% | +5,628+100.6% | Added |
| Truist Financial Corp | 11,261 | $1.58M | 0.00% | −1,608−12.5% | Reduced |
| Oregon Public Employees Retirement Fund | 11,581 | $1.62M | 0.03% | −1,965−14.5% | Reduced |
| Neuberger Berman Group LLC | 11,622 | $1.63M | 0.00% | −4,136−26.2% | Reduced |
| O'Shaughnessy Asset Management, LLC | 11,728 | $1.64M | 0.02% | −1,281−9.8% | Reduced |
| New York State Teachers Retirement System | 11,743 | $1.64M | 0.00% | −2,900−19.8% | Reduced |
| Wealthfront Advisers LLC | 11,909 | $1.67M | 0.01% | +2,870+31.8% | Added |
| Pictet Asset Management Holding SA | 11,924 | $1.67M | 0.00% | −389−3.2% | Reduced |
| Teachers Retirement System of the State of Kentucky | 11,945 | $1.67M | 0.02% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 12,259 | $1.72M | 0.06% | 00.0% | Unchanged |
| SEI Investments Co | 12,389 | $1.73M | 0.00% | −3,517−22.1% | Reduced |
| Handelsbanken Fonder AB | 12,900 | $1.80M | 0.01% | +5,700+79.2% | Added |
| Ambassador Advisors, LLC | 13,081 | $1.81M | 0.40% | −3,270−20.0% | Reduced |
| Panagora Asset Management Inc | 13,147 | $1.84M | 0.01% | 00.0% | Unchanged |
| Twin Capital Management Inc | 13,504 | $1.89M | 0.25% | −344−2.5% | Reduced |
| CWM Advisors, LLC | 13,569 | $1.90M | 0.21% | −7,659−36.1% | Reduced |
| Aviva PLC | 13,651 | $1.91M | 0.01% | −105,726−88.6% | Reduced |
| Illinois Municipal Retirement Fund | 13,975 | $1.96M | 0.03% | +4,129+41.9% | Added |
| Gotham Asset Management, LLC | 14,629 | $2.05M | 0.04% | −6,209−29.8% | Reduced |
| Livforsakringsbolaget Skandia, Omsesidigt | 14,650 | $2.05M | 0.20% | −15,350−51.2% | Reduced |
| Jump Financial, LLC | 14,986 | $2.10M | 0.07% | +187+1.3% | Added |
| Yousif Capital Management, LLC | 15,288 | $2.14M | 0.03% | −349−2.2% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 15,309 | $2.14M | 0.05% | +4,966+48.0% | Added |
| Public Employees Retirement System of Ohio | 15,516 | $2.17M | 0.01% | +332+2.2% | Added |
| CI Private Wealth, LLC | 15,724 | $2.20M | 0.00% | −806−4.9% | Reduced |
| Asset Management One Co.,Ltd. | 15,846 | $2.23M | 0.01% | −371−2.3% | Reduced |
| HSBC Holdings PLC | 16,259 | $2.28M | 0.00% | −2,961−15.4% | Reduced |
| Empowered Funds, LLC | 16,973 | $2.38M | 0.06% | +362+2.2% | Added |
| Alaska Permanent Fund Corp | 17,416 | $2.44M | 0.04% | −3,484−16.7% | Reduced |
| Royal Bank of Canada | 17,805 | $2.49M | 0.00% | +1,668+10.3% | Added |
| MetLife Investment Management | 18,070 | $2.53M | 0.02% | −232−1.3% | Reduced |
| Prudential Financial Inc | 18,355 | $2.57M | 0.00% | −1,846−9.1% | Reduced |
| Agf Management Ltd | 19,108 | $2.67M | 0.02% | −2,012−9.5% | Reduced |
| Pinebridge Investments, L.P. | 19,510 | $2.73M | 0.03% | −17,932−47.9% | Reduced |
| Mutual of America Capital Management LLC | 19,809 | $2.77M | 0.03% | −959−4.6% | Reduced |
| New York State Common Retirement Fund | 19,982 | $2.80M | 0.00% | −4,410−18.1% | Reduced |
| LPL Financial LLC | 20,049 | $2.81M | 0.00% | −133−0.7% | Reduced |
| Comerica Bank | 20,780 | $2.91M | 0.01% | +737+3.7% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 20,830 | $2.92M | 0.01% | −1,074−4.9% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 21,921 | $3.03M | 0.01% | −376−1.7% | Reduced |
| State of New Jersey Common Pension Fund D | 21,838 | $3.06M | 0.01% | −1,157−5.0% | Reduced |
| Amalgamated Bank | 21,886 | $3.06M | 0.02% | +1,030+4.9% | Added |
| Susquehanna International Group, LLP | 22,157 | $3.10M | 0.01% | +115+0.5% | Added |
| Envestnet Asset Management Inc | 22,611 | $3.16M | 0.00% | +1,093+5.1% | Added |
| South Dakota Investment Council | 24,155 | $3.38M | 0.07% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 24,602 | $3.44M | 0.00% | −874−3.4% | Reduced |
| Millennium Management LLC | 24,875 | $3.48M | 0.00% | −175,389−87.6% | Reduced |
| Mercer Global Advisors Inc | 24,896 | $3.48M | 0.01% | +910+3.8% | Added |
| QRG Capital Management, Inc. | 25,587 | $3.58M | 0.05% | +1,371+5.7% | Added |
| Citigroup Inc | 27,311 | $3.82M | 0.01% | −22,228−44.9% | Reduced |
| State of Alaska, Department of Revenue | 27,398 | $3.83M | 0.05% | −330−1.2% | Reduced |
| Texas Permanent School Fund | 27,752 | $3.88M | 0.03% | +603+2.2% | Added |
| LMCG Investments, LLC | 28,527 | $3.99M | 0.25% | +8,870+45.1% | Added |
| Great West Life Assurance Co | 30,388 | $4.25M | 0.01% | +8,035+35.9% | Added |
| State Board of Administration of Florida Retirement System | 31,435 | $4.40M | 0.01% | +2,861+10.0% | Added |
| Treasurer of the State of North Carolina | 31,797 | $4.45M | 0.02% | +14,228+81.0% | Added |
| Smith, Graham & Co., Investment Advisors, LP | 32,090 | $4.49M | 0.52% | −3,271−9.3% | Reduced |
| Fort Pitt Capital Group, LLC | 32,333 | $4.53M | 0.15% | 00.0% | Unchanged |
| Susquehanna Portfolio Strategies, LLC | 33,036 | $4.62M | 0.08% | +33,036 | New |
| Deutsche Bank AG | 33,063 | $4.63M | 0.00% | +3,225+10.8% | Added |
| STRS Ohio | 33,888 | $4.74M | 0.02% | −2,463−6.8% | Reduced |
| UBS Oconnor LLC | 35,700 | $5.00M | 0.16% | +35,700 | New |
| Raymond James & Associates | 38,050 | $5.33M | 0.00% | +477+1.3% | Added |
| Retirement Systems of Alabama | 40,123 | $5.62M | 0.02% | +265+0.7% | Added |
| Knights of Columbus Asset Advisors LLC | 40,392 | $5.65M | 0.36% | +40,392 | New |
| Quantinno Capital Management LP | 40,934 | $5.73M | 0.20% | +3,672+9.9% | Added |
| BNP Paribas Arbitrage, SA | 41,435 | $5.80M | 0.01% | +11,447+38.2% | Added |
| Credit Suisse AG | 41,606 | $5.82M | 0.01% | +93+0.2% | Added |
| Ensign Peak Advisors, Inc | 42,125 | $5.90M | 0.01% | −3,549−7.8% | Reduced |
| Price T Rowe Associates Inc | 42,297 | $5.92M | 0.00% | +109+0.3% | Added |
| Jefferies Financial Group Inc. | 43,032 | $6.02M | 0.09% | +43,032 | New |
| American International Group, Inc. | 43,275 | $6.06M | 0.02% | −1,703−3.8% | Reduced |
| Squarepoint Ops LLC | 44,916 | $6.29M | 0.03% | +11,758+35.5% | Added |
| Alyeska Investment Group, L.P. | 45,364 | $6.35M | 0.04% | −30,954−40.6% | Reduced |
| Wellington Management Group LLP | 46,074 | $6.45M | 0.00% | −4,120−8.2% | Reduced |
| UBS Group AG | 48,169 | $6.74M | 0.00% | +16,964+54.4% | Added |
| California State Teachers Retirement System | 52,083 | $7.29M | 0.01% | −1,413−2.6% | Reduced |
| Janney Montgomery Scott LLC | 53,504 | $7.49M | 0.02% | +53,504 | New |
| Barclays PLC | 53,964 | $7.55M | 0.00% | +10,271+23.5% | Added |
| American Century Companies Inc | 60,199 | $8.43M | 0.01% | −66,484−52.5% | Reduced |
| Cerity Partners LLC | 60,676 | $8.49M | 0.03% | +60,676 | New |
| Contravisory Investment Management, Inc. | 63,972 | $8.95M | 2.19% | −193−0.3% | Reduced |
| Wedge Capital Management L L P | 64,811 | $9.07M | 0.16% | +10,687+19.7% | Added |
| California Public Employees Retirement System | 66,606 | $9.32M | 0.01% | +1,570+2.4% | Added |
| Renaissance Technologies LLC | 69,000 | $9.66M | 0.01% | +6,700+10.8% | Added |
| Winmill & Co. Inc | 70,000 | $9.80M | 3.14% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 70,100 | $9.81M | 0.02% | +54,200+340.9% | Added |
| Bank of America Corp | 70,493 | $9.87M | 0.00% | −12,369−14.9% | Reduced |