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 |
|---|---|---|---|---|---|
| Rhumbline Advisers | 32,303 | $3.14M | 0.00% | +798+2.5% | Added |
| DuPont Capital Management Corp | 31,575 | $3.07M | 0.11% | −11,189−26.2% | Reduced |
| Canada Pension Plan Investment Board | 30,349 | $2.95M | 0.00% | +30,339+303,390.0% | Added |
| Envestnet Asset Management Inc | 30,312 | $2.94M | 0.00% | −2,597−7.9% | Reduced |
| Man Group plc | 30,252 | $2.94M | 0.01% | +4,674+18.3% | Added |
| Advisors Asset Management, Inc. | 29,510 | $2.87M | 0.04% | +1,067+3.8% | Added |
| Franklin Resources Inc | 28,754 | $2.79M | 0.00% | +28,754 | New |
| State of New Jersey Common Pension Fund D | 28,742 | $2.79M | 0.01% | −3,806−11.7% | Reduced |
| SIR Capital Management, L.P. | 26,429 | $2.57M | 0.40% | −100,096−79.1% | Reduced |
| Capitolis Advisors LLC | 25,797 | $2.51M | 0.01% | +25,797 | New |
| Assenagon Asset Management S.A. | 25,380 | $2.46M | 0.01% | −726,256−96.6% | Reduced |
| Paradigm Capital Management Inc | 25,100 | $2.44M | 0.11% | 00.0% | Unchanged |
| Alaska Permanent Fund Corp | 24,000 | $2.37M | 0.04% | 00.0% | Unchanged |
| Gotham Asset Management, LLC | 24,303 | $2.36M | 0.08% | +4,225+21.0% | Added |
| Point72 Asset Management, L.P. | 23,595 | $2.29M | 0.01% | −214,469−90.1% | Reduced |
| Quantbot Technologies LP | 22,358 | $2.17M | 0.18% | +12,353+123.5% | Added |
| Wilen Investment Management Corp. | 20,532 | $1.98M | 1.51% | +20,532 | New |
| Public Employees Retirement System of Ohio | 20,291 | $1.97M | 0.01% | −606−2.9% | Reduced |
| Weiss Multi-Strategy Advisers LLC | 19,000 | $1.84M | 0.04% | +19,000 | New |
| Twin Capital Management Inc | 18,720 | $1.82M | 0.18% | +280+1.5% | Added |
| Truist Financial Corp | 18,247 | $1.77M | 0.00% | −1,863−9.3% | Reduced |
| Paloma Partners Management Co | 17,388 | $1.69M | 0.05% | +17,388 | New |
| Agf Investments Inc. | 17,185 | $1.67M | 0.01% | +557+3.3% | Added |
| M&G Investment Management Ltd | 16,387 | $1.59M | 0.01% | +16,387 | New |
| Raymond James & Associates | 16,105 | $1.56M | 0.00% | +7,785+93.6% | Added |
| Bank of Nova Scotia | 16,000 | $1.55M | 0.00% | −29,881−65.1% | 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 |
| Voloridge Investment Management, LLC | 12,991 | $1.26M | 0.01% | −22,265−63.2% | Reduced |
| Bokf, NA | 12,494 | $1.21M | 0.02% | +10.0% | Added |
| The PNC Financial Services Group, Inc. | 12,362 | $1.20M | 0.00% | +11,081+865.0% | Added |
| Treasurer of the State of North Carolina | 12,022 | $1.17M | 0.01% | +80+0.7% | Added |
| D. E. Shaw & Co., Inc. | 11,769 | $1.14M | 0.00% | −56,362−82.7% | Reduced |
| Corton Capital Inc. | 11,644 | $1.13M | 0.50% | +11,644 | New |
| AlphaCrest Capital Management LLC | 11,104 | $1.08M | 0.04% | −4,919−30.7% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 11,076 | $1.08M | 0.00% | −2,153−16.3% | Reduced |
| Capital Fund Management S.A. | 10,537 | $1.02M | 0.03% | −3,014−22.2% | Reduced |
| Arizona State Retirement System | 10,347 | $1.00M | 0.01% | −124−1.2% | Reduced |
| APG Asset Management N.V. | 11,700 | $999.0K | 0.00% | −3,700−24.0% | Reduced |
| Trexquant Investment LP | 10,255 | $996.0K | 0.06% | +10,255 | New |
| Bradley Foster & Sargent Inc | 10,116 | $983.0K | 0.02% | 00.0% | Unchanged |
| Occudo Quantitative Strategies LP | 10,062 | $977.0K | 0.09% | −105−1.0% | Reduced |
| Mercer Global Advisors Inc | 9,627 | $935.0K | 0.01% | +814+9.2% | Added |
| Centaurus Financial, Inc. | 9,570 | $930.0K | 0.07% | +9,570 | New |
| Bowling Portfolio Management LLC | 9,375 | $911.0K | 0.19% | +295+3.2% | Added |
| PDT Partners, LLC | 9,357 | $909.0K | 0.07% | +9,357 | New |
| Diversified Trust Co | 9,269 | $900.0K | 0.03% | −709−7.1% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 9,251 | $899.0K | 0.00% | 00.0% | Unchanged |
| Cinctive Capital Management LP | 8,542 | $830.0K | 0.04% | −1,458−14.6% | Reduced |
| Sagefield Capital LP | 8,532 | $828.0K | 0.38% | +8,532 | New |
| Engineers Gate Manager LP | 8,210 | $797.0K | 0.04% | +3,280+66.5% | Added |
| Mackenzie Financial Corp | 8,200 | $796.0K | 0.00% | +2,400+41.4% | Added |
| CWM Advisors, LLC | 7,909 | $768.0K | 0.09% | +7,909 | New |
| LPL Financial LLC | 7,884 | $766.0K | 0.00% | +629+8.7% | Added |
| Teacher Retirement System of Texas | 7,421 | $721.0K | 0.00% | +1,239+20.0% | Added |
| Pearl River Capital, LLC | 7,222 | $701.0K | 0.19% | +7,222 | New |
| Voya Investment Management LLC | 7,180 | $697.0K | 0.00% | +459+6.8% | Added |
| Quantinno Capital Management LP | 7,091 | $689.0K | 0.12% | +4,515+175.3% | Added |
| Recurrent Investment Advisors LLC | 6,784 | $659.0K | 0.27% | 00.0% | Unchanged |
| Pettee Investors, Inc. | 6,711 | $652.0K | 0.27% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 6,600 | $641.0K | 0.00% | −10,400−61.2% | Reduced |
| American Century Companies Inc | 6,549 | $636.0K | 0.00% | +2,082+46.6% | Added |
| JustInvest LLC | 6,437 | $625.0K | 0.04% | +6,437 | New |
| Jane Street Group, LLC | 6,408 | $622.0K | 0.00% | −23,758−78.8% | Reduced |
| KBC Group NV | 6,375 | $619.0K | 0.00% | +6,375 | 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 |
| Dynamic Technology Lab Private Ltd | 6,250 | $607.0K | 0.07% | +6,250 | New |
| Handelsbanken Fonder AB | 6,200 | $602.0K | 0.00% | 00.0% | Unchanged |
| Utah Retirement Systems | 5,988 | $581.0K | 0.01% | 00.0% | Unchanged |
| SevenOneSeven Capital Management | 5,911 | $574.0K | 1.13% | +5,911 | New |
| Hillsdale Investment Management Inc. | 5,900 | $573.0K | 0.04% | +100+1.7% | Added |
| Keybank National Association | 5,607 | $545.0K | 0.00% | +1,863+49.8% | Added |
| CIBC Asset Management Inc | 5,563 | $540.0K | 0.00% | +337+6.4% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,521 | $536.0K | 0.00% | +1,779+47.5% | Added |
| Kennedy Capital Management, Inc. | 5,483 | $533.0K | 0.01% | −421−7.1% | Reduced |
| Public Employees Retirement Association of Colorado | 5,364 | $521.0K | 0.00% | +5,364 | New |
| Empirical Finance, LLC | 5,194 | $504.0K | 0.06% | −1,616−23.7% | Reduced |
| Valeo Financial Advisors, LLC | 5,115 | $497.0K | 0.03% | +2,008+64.6% | Added |
| Crossmark Global Holdings, Inc. | 5,050 | $491.0K | 0.01% | +5,050 | New |
| Gsa Capital Partners LLP | 4,994 | $485.0K | 0.06% | −3,775−43.0% | Reduced |
| Versor Investments LP | 4,911 | $477.0K | 0.01% | −1,232−20.1% | Reduced |
| Polaris Wealth Advisory Group, LLC | 4,901 | $476.0K | 0.03% | −417,273−98.8% | Reduced |
| Illinois Municipal Retirement Fund | 4,888 | $475.0K | 0.01% | 00.0% | Unchanged |
| 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 |
| Aviva PLC | 4,730 | $459.0K | 0.00% | −939−16.6% | Reduced |
| Graham Capital Management, L.P. | 4,616 | $448.0K | 0.03% | +4,616 | New |
| Delphia (USA) Inc. | 4,529 | $440.0K | 0.47% | +4,529 | New |
| Walleye Trading LLC | 4,436 | $431.0K | 0.01% | −2,946−39.9% | Reduced |
| BTC Capital Management, Inc. | 4,366 | $425.0K | 0.04% | +1,076+32.7% | Added |
| Gyon Technologies Capital Management, LP | 4,229 | $411.0K | 0.08% | +456+12.1% | Added |
| Investors Research Corp | 4,200 | $408.0K | 0.12% | 00.0% | Unchanged |
| National Asset Management, Inc. | 4,162 | $404.0K | 0.01% | +4,162 | New |
| Meeder Asset Management Inc | 4,055 | $395.0K | 0.04% | +3,998+7,014.0% | Added |
| State of Wisconsin Investment Board | 4,031 | $392.0K | 0.00% | −126−3.0% | Reduced |
| Marshall Wace, LLP | 3,987 | $388.0K | 0.00% | −5,992−60.0% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 3,928 | $382.0K | 0.02% | +90+2.3% | Added |
| HRT Financial LP | 3,893 | $378.0K | 0.00% | −46,215−92.2% | Reduced |
| Ameritas Investment Partners, Inc. | 3,900 | $378.0K | 0.01% | 00.0% | Unchanged |