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 2021
Institutional positions in Westlake Corp as of Dec 31, 2021. 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
- 298
- +30 vs. Q3 2021
- Shares held
- 34.7M
- +469.2K (+1.4%) vs. Q3 2021
- Total value
- $3.37B
- +$246.2M (+7.9%) vs. Q3 2021
- New holders
- 67
- 93 more added
- Sold out
- 37
- 97 more reduced
4 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Westlake Corp; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Hennion & Walsh Asset Management, Inc. | 3,928 | $382.0K | 0.02% | +90+2.3% | Added |
| Marshall Wace, LLP | 3,987 | $388.0K | 0.00% | −5,992−60.0% | Reduced |
| State of Wisconsin Investment Board | 4,031 | $392.0K | 0.00% | −126−3.0% | Reduced |
| Meeder Asset Management Inc | 4,055 | $395.0K | 0.04% | +3,998+7,014.0% | Added |
| National Asset Management, Inc. | 4,162 | $404.0K | 0.01% | +4,162 | New |
| Investors Research Corp | 4,200 | $408.0K | 0.12% | 00.0% | Unchanged |
| Gyon Technologies Capital Management, LP | 4,229 | $411.0K | 0.08% | +456+12.1% | Added |
| BTC Capital Management, Inc. | 4,366 | $425.0K | 0.04% | +1,076+32.7% | Added |
| Walleye Trading LLC | 4,436 | $431.0K | 0.01% | −2,946−39.9% | Reduced |
| Delphia (USA) Inc. | 4,529 | $440.0K | 0.47% | +4,529 | New |
| Graham Capital Management, L.P. | 4,616 | $448.0K | 0.03% | +4,616 | New |
| Aviva PLC | 4,730 | $459.0K | 0.00% | −939−16.6% | Reduced |
| Bank of Montreal | 4,761 | $467.0K | 0.00% | −57,882−92.4% | Reduced |
| Comerica Bank | 4,723 | $467.0K | 0.00% | −5,790−55.1% | Reduced |
| Illinois Municipal Retirement Fund | 4,888 | $475.0K | 0.01% | 00.0% | Unchanged |
| Polaris Wealth Advisory Group, LLC | 4,901 | $476.0K | 0.03% | −417,273−98.8% | Reduced |
| Versor Investments LP | 4,911 | $477.0K | 0.01% | −1,232−20.1% | Reduced |
| Gsa Capital Partners LLP | 4,994 | $485.0K | 0.06% | −3,775−43.0% | Reduced |
| Crossmark Global Holdings, Inc. | 5,050 | $491.0K | 0.01% | +5,050 | New |
| Valeo Financial Advisors, LLC | 5,115 | $497.0K | 0.03% | +2,008+64.6% | Added |
| Empirical Finance, LLC | 5,194 | $504.0K | 0.06% | −1,616−23.7% | Reduced |
| Public Employees Retirement Association of Colorado | 5,364 | $521.0K | 0.00% | +5,364 | New |
| Kennedy Capital Management, Inc. | 5,483 | $533.0K | 0.01% | −421−7.1% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,521 | $536.0K | 0.00% | +1,779+47.5% | Added |
| CIBC Asset Management Inc | 5,563 | $540.0K | 0.00% | +337+6.4% | Added |
| Keybank National Association | 5,607 | $545.0K | 0.00% | +1,863+49.8% | Added |
| Hillsdale Investment Management Inc. | 5,900 | $573.0K | 0.04% | +100+1.7% | Added |
| SevenOneSeven Capital Management | 5,911 | $574.0K | 1.13% | +5,911 | New |
| Utah Retirement Systems | 5,988 | $581.0K | 0.01% | 00.0% | Unchanged |
| Handelsbanken Fonder AB | 6,200 | $602.0K | 0.00% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 6,250 | $607.0K | 0.07% | +6,250 | New |
| Walleye Capital LLC | 6,311 | $613.0K | 0.02% | −47,782−88.3% | Reduced |
| Amalgamated Bank | 6,314 | $613.0K | 0.00% | −2,280−26.5% | Reduced |
| KBC Group NV | 6,375 | $619.0K | 0.00% | +6,375 | New |
| Jane Street Group, LLC | 6,408 | $622.0K | 0.00% | −23,758−78.8% | Reduced |
| JustInvest LLC | 6,437 | $625.0K | 0.04% | +6,437 | New |
| American Century Companies Inc | 6,549 | $636.0K | 0.00% | +2,082+46.6% | Added |
| Two Sigma Advisers, LP | 6,600 | $641.0K | 0.00% | −10,400−61.2% | Reduced |
| Pettee Investors, Inc. | 6,711 | $652.0K | 0.27% | 00.0% | Unchanged |
| Recurrent Investment Advisors LLC | 6,784 | $659.0K | 0.27% | 00.0% | Unchanged |
| Quantinno Capital Management LP | 7,091 | $689.0K | 0.12% | +4,515+175.3% | Added |
| Voya Investment Management LLC | 7,180 | $697.0K | 0.00% | +459+6.8% | Added |
| Pearl River Capital, LLC | 7,222 | $701.0K | 0.19% | +7,222 | New |
| Teacher Retirement System of Texas | 7,421 | $721.0K | 0.00% | +1,239+20.0% | Added |
| LPL Financial LLC | 7,884 | $766.0K | 0.00% | +629+8.7% | Added |
| CWM Advisors, LLC | 7,909 | $768.0K | 0.09% | +7,909 | New |
| Mackenzie Financial Corp | 8,200 | $796.0K | 0.00% | +2,400+41.4% | Added |
| Engineers Gate Manager LP | 8,210 | $797.0K | 0.04% | +3,280+66.5% | Added |
| Sagefield Capital LP | 8,532 | $828.0K | 0.38% | +8,532 | New |
| Cinctive Capital Management LP | 8,542 | $830.0K | 0.04% | −1,458−14.6% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 9,251 | $899.0K | 0.00% | 00.0% | Unchanged |
| Diversified Trust Co | 9,269 | $900.0K | 0.03% | −709−7.1% | Reduced |
| PDT Partners, LLC | 9,357 | $909.0K | 0.07% | +9,357 | New |
| Bowling Portfolio Management LLC | 9,375 | $911.0K | 0.19% | +295+3.2% | Added |
| Centaurus Financial, Inc. | 9,570 | $930.0K | 0.07% | +9,570 | New |
| Mercer Global Advisors Inc | 9,627 | $935.0K | 0.01% | +814+9.2% | Added |
| Occudo Quantitative Strategies LP | 10,062 | $977.0K | 0.09% | −105−1.0% | Reduced |
| Bradley Foster & Sargent Inc | 10,116 | $983.0K | 0.02% | 00.0% | Unchanged |
| Trexquant Investment LP | 10,255 | $996.0K | 0.06% | +10,255 | New |
| APG Asset Management N.V. | 11,700 | $999.0K | 0.00% | −3,700−24.0% | Reduced |
| Arizona State Retirement System | 10,347 | $1.00M | 0.01% | −124−1.2% | Reduced |
| Capital Fund Management S.A. | 10,537 | $1.02M | 0.03% | −3,014−22.2% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 11,076 | $1.08M | 0.00% | −2,153−16.3% | Reduced |
| AlphaCrest Capital Management LLC | 11,104 | $1.08M | 0.04% | −4,919−30.7% | Reduced |
| Corton Capital Inc. | 11,644 | $1.13M | 0.50% | +11,644 | New |
| D. E. Shaw & Co., Inc. | 11,769 | $1.14M | 0.00% | −56,362−82.7% | Reduced |
| Treasurer of the State of North Carolina | 12,022 | $1.17M | 0.01% | +80+0.7% | Added |
| The PNC Financial Services Group, Inc. | 12,362 | $1.20M | 0.00% | +11,081+865.0% | Added |
| Bokf, NA | 12,494 | $1.21M | 0.02% | +10.0% | Added |
| Voloridge Investment Management, LLC | 12,991 | $1.26M | 0.01% | −22,265−63.2% | Reduced |
| UBS Group AG | 15,981 | $1.55M | 0.00% | −40,395−71.7% | Reduced |
| Susquehanna Fundamental Investments, LLC | 15,990 | $1.55M | 0.04% | 00.0% | Unchanged |
| Bank of Nova Scotia | 16,000 | $1.55M | 0.00% | −29,881−65.1% | Reduced |
| Raymond James & Associates | 16,105 | $1.56M | 0.00% | +7,785+93.6% | Added |
| M&G Investment Management Ltd | 16,387 | $1.59M | 0.01% | +16,387 | New |
| Agf Investments Inc. | 17,185 | $1.67M | 0.01% | +557+3.3% | Added |
| Paloma Partners Management Co | 17,388 | $1.69M | 0.05% | +17,388 | New |
| Truist Financial Corp | 18,247 | $1.77M | 0.00% | −1,863−9.3% | Reduced |
| Twin Capital Management Inc | 18,720 | $1.82M | 0.18% | +280+1.5% | Added |
| Weiss Multi-Strategy Advisers LLC | 19,000 | $1.84M | 0.04% | +19,000 | New |
| Public Employees Retirement System of Ohio | 20,291 | $1.97M | 0.01% | −606−2.9% | Reduced |
| Wilen Investment Management Corp. | 20,532 | $1.98M | 1.51% | +20,532 | New |
| Quantbot Technologies LP | 22,358 | $2.17M | 0.18% | +12,353+123.5% | Added |
| Point72 Asset Management, L.P. | 23,595 | $2.29M | 0.01% | −214,469−90.1% | Reduced |
| Gotham Asset Management, LLC | 24,303 | $2.36M | 0.08% | +4,225+21.0% | Added |
| Alaska Permanent Fund Corp | 24,000 | $2.37M | 0.04% | 00.0% | Unchanged |
| Paradigm Capital Management Inc | 25,100 | $2.44M | 0.11% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 25,380 | $2.46M | 0.01% | −726,256−96.6% | Reduced |
| Capitolis Advisors LLC | 25,797 | $2.51M | 0.01% | +25,797 | New |
| SIR Capital Management, L.P. | 26,429 | $2.57M | 0.40% | −100,096−79.1% | Reduced |
| State of New Jersey Common Pension Fund D | 28,742 | $2.79M | 0.01% | −3,806−11.7% | Reduced |
| Franklin Resources Inc | 28,754 | $2.79M | 0.00% | +28,754 | New |
| Advisors Asset Management, Inc. | 29,510 | $2.87M | 0.04% | +1,067+3.8% | Added |
| Man Group plc | 30,252 | $2.94M | 0.01% | +4,674+18.3% | Added |
| Envestnet Asset Management Inc | 30,312 | $2.94M | 0.00% | −2,597−7.9% | Reduced |
| Canada Pension Plan Investment Board | 30,349 | $2.95M | 0.00% | +30,339+303,390.0% | Added |
| DuPont Capital Management Corp | 31,575 | $3.07M | 0.11% | −11,189−26.2% | Reduced |
| Rhumbline Advisers | 32,303 | $3.14M | 0.00% | +798+2.5% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 32,445 | $3.15M | 0.02% | +23,306+255.0% | Added |
| AXA S.A. | 32,500 | $3.16M | 0.01% | −11,200−25.6% | Reduced |