Westlake Chemical Corporation shares owned by Wellington Management Company
Quarter-by-quarter ownership of Westlake Chemical Corporation (WLK) shares owned by Wellington Management Company
from 13F filings
Historical chart of Wellington Management Company investment in Westlake Chemical Corporation
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Quarterly reported holdings in Westlake Chemical Corporation by Wellington Management Company
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $4.4M | 58k | 77.06 |
| 2025-03-31 | $468k | 4.7k | 100.03 |
| 2024-12-31 | $4.9M | 43k | 114.65 |
| 2024-09-30 | $6.1M | 41k | 150.29 |
| 2024-06-30 | $7.0M | 49k | 144.82 |
| 2024-03-31 | $7.3M | 48k | 152.80 |
| 2023-12-31 | $6.4M | 46k | 139.96 |
| 2023-09-30 | $6.3M | 50k | 124.67 |
| 2023-06-30 | $4.4M | 37k | 119.47 |
| 2023-03-31 | $3.3M | 29k | 115.98 |
| 2022-12-31 | $4.8M | 46k | 102.54 |
| 2022-03-31 | $23M | 182k | 123.40 |
| 2021-12-31 | $18M | 186k | 97.13 |
| 2021-09-30 | $3.0M | 33k | 91.13 |
| 2021-06-30 | $2.7M | 30k | 90.10 |
| 2021-03-31 | $2.8M | 31k | 88.80 |
| 2020-12-31 | $2.1M | 26k | 81.59 |
| 2020-09-30 | $2.0M | 32k | 63.23 |
| 2020-06-30 | $1.8M | 33k | 53.64 |
| 2020-03-31 | $1.5M | 41k | 38.16 |
| 2019-12-31 | $4.3M | 62k | 70.16 |
| 2019-09-30 | $1.5M | 22k | 65.51 |
| 2019-06-30 | $570k | 8.2k | 69.49 |
| 2019-03-31 | $4.8M | 71k | 67.85 |
| 2018-12-31 | $1.3M | 19k | 66.16 |
| 2018-09-30 | $16M | 189k | 83.11 |
| 2018-06-30 | $47M | 437k | 107.63 |
| 2018-03-31 | $70M | 628k | 111.15 |
| 2017-12-31 | $108M | 1.0M | 106.53 |
| 2017-09-30 | $91M | 1.1M | 83.09 |
| 2017-06-30 | $96M | 1.4M | 66.21 |
| 2017-03-31 | $86M | 1.3M | 66.05 |
| 2016-12-31 | $65M | 1.2M | 55.99 |
| 2016-09-30 | $1.8M | 34k | 53.51 |
| 2016-06-30 | $2.5M | 58k | 42.91 |
| 2016-03-31 | $1.8M | 40k | 46.30 |
| 2015-12-31 | $872k | 16k | 54.35 |
| 2015-09-30 | $571k | 11k | 51.91 |
| 2015-06-30 | $261k | 3.8k | 68.80 |
| 2015-03-31 | $268k | 3.7k | 72.19 |
| 2013-09-30 | $1.2M | 11k | 104.62 |
| 2013-06-30 | $12M | 122k | 96.41 |
| 2013-03-31 | $518k | 5.5k | 93.64 |
| 2012-12-31 | $12M | 146k | 79.30 |
| 2012-09-30 | $13M | 184k | 73.06 |
| 2012-06-30 | $7.0M | 134k | 52.26 |
| 2012-03-31 | $33M | 504k | 64.79 |
| 2011-12-31 | $12M | 291k | 40.24 |
| 2011-09-30 | $8.2M | 240k | 34.28 |
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