Westlake Chemical Corporation shares owned by Charles Schwab Investment Management
Quarter-by-quarter ownership of Westlake Chemical Corporation (WLK) shares owned by Charles Schwab Investment Management
from 13F filings
Historical chart of Charles Schwab Investment Management investment in Westlake Chemical Corporation
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Quarterly reported holdings in Westlake Chemical Corporation by Charles Schwab Investment Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-12-31 | $22M | 297k | 73.94 |
| 2025-09-30 | $21M | 273k | 77.06 |
| 2025-06-30 | $20M | 257k | 75.93 |
| 2025-03-31 | $25M | 245k | 100.03 |
| 2024-12-31 | $27M | 236k | 114.65 |
| 2024-09-30 | $34M | 224k | 150.29 |
| 2024-06-30 | $35M | 238k | 144.82 |
| 2024-03-31 | $36M | 233k | 152.80 |
| 2023-12-31 | $49M | 353k | 139.96 |
| 2023-09-30 | $43M | 345k | 124.67 |
| 2023-06-30 | $42M | 353k | 119.47 |
| 2023-03-31 | $40M | 345k | 115.98 |
| 2022-12-31 | $35M | 338k | 102.54 |
| 2022-09-30 | $29M | 335k | 86.88 |
| 2022-06-30 | $31M | 316k | 98.02 |
| 2022-03-31 | $38M | 305k | 123.40 |
| 2021-12-31 | $29M | 298k | 97.13 |
| 2021-09-30 | $26M | 289k | 91.14 |
| 2021-06-30 | $26M | 286k | 90.09 |
| 2021-03-31 | $26M | 288k | 88.79 |
| 2020-12-31 | $24M | 293k | 81.60 |
| 2020-09-30 | $18M | 287k | 63.22 |
| 2020-06-30 | $16M | 305k | 53.65 |
| 2020-03-31 | $12M | 322k | 38.17 |
| 2019-12-31 | $20M | 287k | 70.15 |
| 2019-09-30 | $18M | 276k | 65.52 |
| 2019-06-30 | $18M | 261k | 69.46 |
| 2019-03-31 | $17M | 243k | 67.86 |
| 2018-12-31 | $20M | 301k | 66.17 |
| 2018-09-30 | $30M | 362k | 83.11 |
| 2018-06-30 | $42M | 389k | 107.63 |
| 2018-03-31 | $40M | 362k | 111.15 |
| 2017-12-31 | $40M | 375k | 106.02 |
| 2017-09-30 | $16M | 192k | 83.09 |
| 2017-06-30 | $13M | 189k | 66.21 |
| 2017-03-31 | $12M | 182k | 66.05 |
| 2016-12-31 | $9.3M | 167k | 55.99 |
| 2016-09-30 | $8.0M | 149k | 53.50 |
| 2016-06-30 | $5.8M | 134k | 42.92 |
| 2016-03-31 | $6.0M | 129k | 46.31 |
| 2015-12-31 | $6.5M | 119k | 54.32 |
| 2015-09-30 | $5.7M | 110k | 51.90 |
| 2015-06-30 | $5.0M | 73k | 68.60 |
| 2015-03-31 | $6.0M | 84k | 71.94 |
| 2014-12-31 | $9.0M | 147k | 61.09 |
| 2014-09-30 | $4.8M | 55k | 86.60 |
| 2014-06-30 | $6.1M | 73k | 83.76 |
| 2014-03-31 | $4.4M | 67k | 66.19 |
| 2013-12-31 | $3.7M | 30k | 122.08 |
| 2013-09-30 | $3.0M | 28k | 107.62 |
| 2013-06-30 | $2.6M | 26k | 98.26 |
| 2013-03-31 | $2.2M | 25k | 90.03 |
| 2012-12-31 | $1.9M | 24k | 79.32 |
| 2012-09-30 | $1.8M | 25k | 73.87 |
| 2012-06-30 | $3.5M | 68k | 52.11 |
| 2012-03-31 | $4.4M | 68k | 65.63 |
| 2011-12-31 | $2.6M | 64k | 40.25 |
| 2011-09-30 | $821k | 25k | 32.33 |
| 2011-06-30 | $1.4M | 27k | 52.83 |
| 2011-03-31 | $1.5M | 27k | 56.49 |
| 2010-12-31 | $2.1M | 48k | 43.48 |
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