Westlake Corporation Diluted Shares Outstanding (Weighted Average)
Westlake Corporation (WLK) reported Diluted Shares Outstanding (Weighted Average) of 128.50 million shares for the 3-month period ending 2026-06-30, per its 10-Q filed 2026-08-05.
Financial Statements › Income Statement › Earnings Per Share
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding · last filed 2026-08-05
- Westlake Corporation weighted average number of shares outstanding, diluted for the quarter ending 2026-06-30 was 128.50M shares, a 0.20% increase year-over-year.
- Westlake Corporation weighted average number of shares outstanding, diluted for the quarter ending 2026-03-31 was 127.99M shares, a 0.25% decline year-over-year.
- Westlake Corporation weighted average number of shares outstanding, diluted for the quarter ending 2025-12-31 was 128.24M shares, a 0.68% decline year-over-year.
- Westlake Corporation weighted average number of shares outstanding, diluted for the quarter ending 2025-09-30 was 128.25M shares, a 0.84% decline year-over-year.
- Westlake Corporation weighted average number of shares outstanding, diluted for fiscal 2025 was 128.26M shares, a 0.73% decline from fiscal 2024.
- Westlake Corporation weighted average number of shares outstanding, diluted for fiscal 2024 was 129.21M shares, a 0.47% increase from fiscal 2023.
- Westlake Corporation weighted average number of shares outstanding, diluted for fiscal 2023 was 128.60M shares, a 0.19% decline from fiscal 2022.
- Westlake Corporation weighted average number of shares outstanding, diluted for fiscal 2022 was 128.85M shares, a 0.11% increase from fiscal 2021.
| Period end | Weighted Average Number of Shares Outstanding, Diluted 3 month | Weighted Average Number of Shares Outstanding, Diluted 3 month as first filed | Weighted Average Number of Shares Outstanding, Diluted 6 month | Weighted Average Number of Shares Outstanding, Diluted 6 month as first filed | Weighted Average Number of Shares Outstanding, Diluted 9 month | Weighted Average Number of Shares Outstanding, Diluted 9 month as first filed | Weighted Average Number of Shares Outstanding, Diluted 12 month | Weighted Average Number of Shares Outstanding, Diluted 12 month as first filed |
|---|---|---|---|---|---|---|---|---|
| 2026-06-30 | 128.50M shares 10-Q · filed 2026-08-05 | 128.43M shares 10-Q · filed 2026-08-05 | 128.25M shares derived: average of 3 quarters · filed 2026-08-05 | 128.25M shares derived: average of 4 quarters · filed 2026-08-05 | ||||
| 2026-03-31 | 127.99M shares 10-Q · filed 2026-05-06 | 128.12M shares derived: average of 2 quarters · filed 2026-05-06 | 128.16M shares derived: average of 3 quarters · filed 2026-05-06 | 128.18M shares derived: average of 4 quarters · filed 2026-08-05 | ||||
| 2025-12-31 | 128.24M shares derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | 128.25M shares derived: average of 2 quarters · filed 2026-02-26 | 128.24M shares derived: average of 3 quarters · filed 2026-08-05 | 128.26M shares 10-K · filed 2026-02-26 | ||||
| 2025-09-30 | 128.25M shares 10-Q · filed 2025-10-31 | 128.24M shares derived: average of 2 quarters · filed 2026-08-05 | 128.27M shares 10-Q · filed 2025-10-31 | 128.48M shares derived: average of 4 quarters · filed 2026-08-05 | ||||
| 2025-06-30 | 128.24M shares 10-Q · filed 2026-08-05 | 128.27M shares 10-Q · filed 2026-08-05 | 128.55M shares derived: average of 3 quarters · filed 2026-08-05 | 128.75M shares derived: average of 4 quarters · filed 2026-08-05 | ||||
| 2025-03-31 | 128.31M shares 10-Q · filed 2026-05-06 | 128.71M shares derived: average of 2 quarters · filed 2026-05-06 | 128.92M shares derived: average of 3 quarters · filed 2026-05-06 | 129.03M shares derived: average of 4 quarters · filed 2026-05-06 | ||||
| 2024-12-31 | 129.12M shares derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | 129.23M shares derived: average of 2 quarters · filed 2026-02-26 | 129.27M shares derived: average of 3 quarters · filed 2026-02-26 | 129.21M shares 10-K · filed 2026-02-26 | ||||
| 2024-09-30 | 129.34M shares 10-Q · filed 2025-10-31 | 129.35M shares derived: average of 2 quarters · filed 2025-10-31 | 129.24M shares 10-Q · filed 2025-10-31 | 129.14M shares derived: average of 4 quarters · filed 2026-02-26 | ||||
| 2024-06-30 | 129.35M shares 10-Q · filed 2025-08-06 | 129.19M shares 10-Q · filed 2025-08-06 | 129.08M shares derived: average of 3 quarters · filed 2026-02-26 | 128.95M shares derived: average of 4 quarters · filed 2026-02-26 | ||||
| 2024-03-31 | 129.02M shares 10-Q · filed 2025-05-02 | 128.94M shares derived: average of 2 quarters · filed 2026-02-26 | 128.82M shares derived: average of 3 quarters · filed 2026-02-26 | 128.74M shares derived: average of 4 quarters · filed 2026-02-26 | ||||
| 2023-12-31 | 128.86M shares derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | 128.72M shares derived: average of 2 quarters · filed 2026-02-26 | 128.64M shares derived: average of 3 quarters · filed 2026-02-26 | 128.60M shares 10-K · filed 2026-02-26 | ||||
| 2023-09-30 | 128.58M shares 10-Q · filed 2024-11-06 | 128.53M shares derived: average of 2 quarters · filed 2024-11-06 | 128.51M shares 10-Q · filed 2024-11-06 | 128.47M shares derived: average of 4 quarters · filed 2025-02-25 | ||||
| 2023-06-30 | 128.48M shares 10-Q · filed 2024-08-09 | 128.47M shares 10-Q · filed 2024-08-09 | 128.44M shares derived: average of 3 quarters · filed 2025-02-25 | 128.52M shares derived: average of 4 quarters · filed 2025-02-25 | ||||
| 2023-03-31 | 128.46M shares 10-Q · filed 2024-05-02 | 128.42M shares derived: average of 2 quarters · filed 2025-02-25 | 128.53M shares derived: average of 3 quarters · filed 2025-02-25 | 128.73M shares derived: average of 4 quarters · filed 2025-02-25 | ||||
| 2022-12-31 | 128.37M shares derived: 10-K 12 month − 10-Q 9 month · filed 2025-02-25 | 128.56M shares derived: average of 2 quarters · filed 2025-02-25 | 128.82M shares derived: average of 3 quarters · filed 2025-02-25 | 128.85M shares 10-K · filed 2025-02-25 | ||||
| 2022-09-30 | 128.75M shares 10-Q · filed 2023-11-02 | 129.04M shares derived: average of 2 quarters · filed 2023-11-02 | 129.00M shares 10-Q · filed 2023-11-02 | 128.92M shares derived: average of 4 quarters · filed 2024-02-22 | ||||
| 2022-06-30 | 129.34M shares 10-Q · filed 2023-08-03 | 129.13M shares 10-Q · filed 2023-08-03 | 128.98M shares derived: average of 3 quarters · filed 2024-02-22 | 128.92M shares derived: average of 4 quarters · filed 2024-02-22 | ||||
| 2022-03-31 | 128.93M shares 10-Q · filed 2023-05-04 | 128.79M shares derived: average of 2 quarters · filed 2024-02-22 | 128.78M shares derived: average of 3 quarters · filed 2024-02-22 | 128.81M shares derived: average of 4 quarters · filed 2024-02-22 | ||||
| 2021-12-31 | 128.66M shares derived: 10-K 12 month − 10-Q 9 month · filed 2024-02-22 | 128.71M shares derived: average of 2 quarters · filed 2024-02-22 | 128.77M shares derived: average of 3 quarters · filed 2024-02-22 | 128.70M shares 10-K · filed 2024-02-22 | ||||
| 2021-09-30 | 128.77M shares 10-Q · filed 2022-11-03 | 128.82M shares derived: average of 2 quarters · filed 2022-11-03 | 128.71M shares 10-Q · filed 2022-11-03 | 128.57M shares derived: average of 4 quarters · filed 2023-02-22 | ||||
| 2021-06-30 | 128.88M shares 10-Q · filed 2022-08-03 | 128.68M shares 10-Q · filed 2022-08-03 | 128.50M shares derived: average of 3 quarters · filed 2023-02-22 | 128.36M shares derived: average of 4 quarters · filed 2023-02-22 | ||||
| 2021-03-31 | 128.48M shares 10-Q · filed 2022-05-04 | 128.31M shares derived: average of 2 quarters · filed 2023-02-22 | 128.19M shares derived: average of 3 quarters · filed 2023-02-22 | 128.10M shares derived: average of 4 quarters · filed 2023-02-22 | ||||
| 2020-12-31 | 128.14M shares derived: 10-K 12 month − 10-Q 9 month · filed 2023-02-22 | 128.05M shares derived: average of 2 quarters · filed 2023-02-22 | 127.97M shares derived: average of 3 quarters · filed 2023-02-22 | 128.09M shares 10-K · filed 2023-02-22 | ||||
| 2020-09-30 | 127.95M shares 10-Q · filed 2021-11-03 | 127.89M shares derived: average of 2 quarters · filed 2021-11-03 | 128.07M shares 10-Q · filed 2021-11-03 | 128.23M shares derived: average of 4 quarters · filed 2022-02-23 | ||||
| 2020-06-30 | 127.82M shares 10-Q · filed 2021-08-03 | 128.13M shares 10-Q · filed 2021-08-03 | 128.33M shares derived: average of 3 quarters · filed 2022-02-23 | 128.38M shares derived: average of 4 quarters · filed 2022-02-23 | ||||
| 2020-03-31 | 128.44M shares 10-Q · filed 2021-05-05 | 128.58M shares derived: average of 2 quarters · filed 2022-02-23 | 128.57M shares derived: average of 3 quarters · filed 2022-02-23 | 128.64M shares derived: average of 4 quarters · filed 2022-02-23 | ||||
| 2019-12-31 | 128.72M shares derived: 10-K 12 month − 10-Q 9 month · filed 2022-02-23 | 128.63M shares derived: average of 2 quarters · filed 2022-02-23 | 128.71M shares derived: average of 3 quarters · filed 2022-02-23 | 128.76M shares 10-K · filed 2022-02-23 | ||||
| 2019-09-30 | 128.55M shares 10-Q · filed 2020-11-04 | 128.70M shares derived: average of 2 quarters · filed 2020-11-04 | 128.77M shares 10-Q · filed 2020-11-04 | 128.93M shares derived: average of 4 quarters · filed 2021-02-24 | ||||
| 2019-06-30 | 128.85M shares 10-Q · filed 2020-08-06 | 128.88M shares 10-Q · filed 2020-08-06 | 129.05M shares derived: average of 3 quarters · filed 2021-02-24 | 129.30M shares derived: average of 4 quarters · filed 2021-02-24 | ||||
| 2019-03-31 | 128.91M shares 10-Q · filed 2020-05-06 | 129.15M shares derived: average of 2 quarters · filed 2021-02-24 | 129.45M shares derived: average of 3 quarters · filed 2021-02-24 | 129.67M shares derived: average of 4 quarters · filed 2021-02-24 | ||||
| 2018-12-31 | 129.39M shares derived: 10-K 12 month − 10-Q 9 month · filed 2021-02-24 | 129.72M shares derived: average of 2 quarters · filed 2021-02-24 | 129.92M shares derived: average of 3 quarters · filed 2021-02-24 | 129.99M shares 10-K · filed 2021-02-24 | ||||
| 2018-09-30 | 130.05M shares 10-Q · filed 2019-11-06 | 130.18M shares derived: average of 2 quarters · filed 2019-11-06 | 130.18M shares 10-Q · filed 2019-11-06 | 129.83M shares derived: average of 4 quarters · filed 2020-02-19 | ||||
| 2018-06-30 | 130.31M shares 10-Q · filed 2019-08-06 | 130.25M shares 10-Q · filed 2019-08-06 | 129.76M shares derived: average of 3 quarters · filed 2020-02-19 | 129.79M shares derived: average of 4 quarters · filed 2020-02-19 | ||||
| 2018-03-31 | 130.19M shares 10-Q · filed 2019-05-02 | 129.49M shares derived: average of 2 quarters · filed 2020-02-19 | 129.62M shares derived: average of 3 quarters · filed 2020-02-19 | 129.66M shares derived: average of 4 quarters · filed 2020-02-19 | ||||
| 2017-12-31 | 128.79M shares derived: 10-K 12 month − 10-Q 9 month · filed 2020-02-19 | 129.34M shares derived: average of 2 quarters · filed 2020-02-19 | 129.49M shares derived: average of 3 quarters · filed 2020-02-19 | 129.54M shares 10-K · filed 2020-02-19 | ||||
| 2017-09-30 | 129.89M shares 10-Q · filed 2018-11-06 | 129.84M shares derived: average of 2 quarters · filed 2018-11-06 | 129.79M shares 10-Q · filed 2018-11-06 | 129.74M shares derived: average of 4 quarters · filed 2019-02-20 | ||||
| 2017-06-30 | 129.79M shares 10-Q · filed 2018-08-02 | 129.74M shares 10-Q · filed 2018-08-02 | 129.69M shares derived: average of 3 quarters · filed 2019-02-20 | 129.61M shares derived: average of 4 quarters · filed 2019-02-20 | ||||
| 2017-03-31 | 129.69M shares 10-Q · filed 2018-05-03 | 129.64M shares derived: average of 2 quarters · filed 2019-02-20 | 129.55M shares derived: average of 3 quarters · filed 2019-02-20 | 129.66M shares derived: average of 4 quarters · filed 2019-02-20 | ||||
| 2016-12-31 | 129.59M shares derived: 10-K 12 month − 10-Q 9 month · filed 2019-02-20 | 129.48M shares derived: average of 2 quarters · filed 2019-02-20 | 129.65M shares derived: average of 3 quarters · filed 2019-02-20 | 129.97M shares 10-K · filed 2019-02-20 | ||||
| 2016-09-30 | 129.38M shares 10-Q · filed 2017-11-07 | 129.68M shares derived: average of 2 quarters · filed 2017-11-07 | 130.10M shares 10-Q · filed 2017-11-07 | 130.20M shares derived: average of 4 quarters · filed 2018-02-21 | ||||
| 2016-06-30 | 129.98M shares 10-Q · filed 2017-08-03 | 130.29M shares 10-Q · filed 2017-08-03 | 130.48M shares derived: average of 3 quarters · filed 2018-02-21 | 130.89M shares derived: average of 4 quarters · filed 2018-02-21 | ||||
| 2016-03-31 | 130.60M shares 10-Q · filed 2017-05-03 | 130.72M shares derived: average of 2 quarters · filed 2018-02-21 | 131.19M shares derived: average of 3 quarters · filed 2018-02-21 | 131.65M shares derived: average of 4 quarters · filed 2018-02-21 | ||||
| 2015-12-31 | 130.85M shares derived: 10-K 12 month − 10-Q 9 month · filed 2018-02-21 | 131.48M shares derived: average of 2 quarters · filed 2018-02-21 | 132.00M shares derived: average of 3 quarters · filed 2018-02-21 | 132.30M shares 10-K · filed 2018-02-21 | ||||
| 2015-09-30 | 132.12M shares 10-Q · filed 2016-11-09 | 132.58M shares derived: average of 2 quarters · filed 2016-11-09 | 132.79M shares 10-Q · filed 2016-11-09 | 132.93M shares derived: average of 4 quarters · filed 2017-02-22 | ||||
| 2015-06-30 | 133.04M shares 10-Q · filed 2016-08-09 | 133.12M shares 10-Q · filed 2016-08-09 | 133.20M shares derived: average of 3 quarters · filed 2017-02-22 | 133.36M shares derived: average of 4 quarters · filed 2017-02-22 | ||||
| 2015-03-31 | 133.21M shares 10-Q · filed 2016-05-04 | 133.27M shares derived: average of 2 quarters · filed 2017-02-22 | 133.47M shares derived: average of 3 quarters · filed 2017-02-22 | 133.54M shares derived: average of 4 quarters · filed 2017-02-22 | ||||
| 2014-12-31 | 133.34M shares derived: 10-K 12 month − 10-Q 9 month · filed 2017-02-22 | 133.60M shares derived: average of 2 quarters · filed 2017-02-22 | 133.65M shares derived: average of 3 quarters · filed 2017-02-22 | 133.64M shares 10-K · filed 2017-02-22 | ||||
| 2014-09-30 | 133.85M shares 10-Q · filed 2015-11-04 | 133.81M shares derived: average of 2 quarters · filed 2015-11-04 | 133.74M shares 10-Q · filed 2015-11-04 | 133.73M shares derived: average of 4 quarters · filed 2016-02-24 | ||||
| 2014-06-30 | 133.77M shares 10-Q · filed 2015-08-05 | 133.69M shares 10-Q · filed 2015-08-05 | 133.69M shares derived: average of 3 quarters · filed 2016-02-24 | 133.72M shares derived: average of 4 quarters · filed 2016-02-24 | ||||
| 2014-03-31 | 133.61M shares 10-Q · filed 2015-05-06 | 133.65M shares derived: average of 2 quarters · filed 2016-02-24 | 133.71M shares derived: average of 3 quarters · filed 2016-02-24 | 133.73M shares derived: average of 4 quarters · filed 2016-02-24 | ||||
| 2013-12-31 | 133.70M shares derived: 10-K 12 month − 10-Q 9 month · filed 2016-02-24 | 133.75M shares derived: average of 2 quarters · filed 2016-02-24 | 133.77M shares derived: average of 3 quarters · filed 2016-02-24 | 133.78M shares 10-K · filed 2016-02-24 | 66.89M shares 10-K · filed 2014-02-21 | |||
| 2013-09-30 | 133.81M shares 10-Q · filed 2014-11-07 | 66.91M shares 10-Q · filed 2013-11-07 | 133.80M shares derived: average of 2 quarters · filed 2014-11-07 | 133.81M shares 10-Q · filed 2014-11-07 | 66.90M shares 10-Q · filed 2013-11-07 | 183.67M shares derived: average of 4 quarters · filed 2015-02-25 | ||
| 2013-06-30 | 133.79M shares 10-Q · filed 2014-08-06 | 66.90M shares 10-Q · filed 2013-07-31 | 133.80M shares 10-Q · filed 2014-08-06 | 66.90M shares 10-Q · filed 2013-07-31 | 200.29M shares derived: average of 3 quarters · filed 2015-02-25 | 166.88M shares derived: average of 4 quarters · filed 2015-02-25 | ||
| 2013-03-31 | 133.82M shares 10-Q · filed 2014-05-06 | 66.91M shares 10-Q · filed 2013-05-07 | 233.54M shares derived: average of 2 quarters · filed 2015-02-25 | 177.91M shares derived: average of 3 quarters · filed 2015-02-25 | 150.10M shares derived: average of 4 quarters · filed 2015-02-25 | |||
| 2012-12-31 | 333.27M shares derived: 10-K 12 month − 10-Q 9 month · filed 2015-02-25 | 199.96M shares derived: average of 2 quarters · filed 2015-02-25 | 155.52M shares derived: average of 3 quarters · filed 2015-02-25 | 133.28M shares 10-K · filed 2015-02-25 | 66.64M shares 10-K · filed 2013-02-22 | |||
| 2012-09-30 | 66.66M shares 10-Q · filed 2013-11-07 | 66.65M shares derived: average of 2 quarters · filed 2013-11-07 | 66.62M shares 10-Q · filed 2013-11-07 | 66.54M shares derived: average of 4 quarters · filed 2014-02-21 | ||||
| 2012-06-30 | 66.65M shares 10-Q · filed 2013-07-31 | 66.60M shares 10-Q · filed 2013-07-31 | 66.50M shares derived: average of 3 quarters · filed 2014-02-21 | 66.47M shares derived: average of 4 quarters · filed 2014-02-21 | ||||
| 2012-03-31 | 66.56M shares 10-Q · filed 2013-05-07 | 66.42M shares derived: average of 2 quarters · filed 2014-02-21 | 66.41M shares derived: average of 3 quarters · filed 2014-02-21 | 66.41M shares derived: average of 4 quarters · filed 2014-02-21 | ||||
| 2011-12-31 | 66.28M shares derived: 10-K 12 month − 10-Q 9 month · filed 2014-02-21 | 66.33M shares derived: average of 2 quarters · filed 2014-02-21 | 66.36M shares derived: average of 3 quarters · filed 2014-02-21 | 66.30M shares 10-K · filed 2014-02-21 | ||||
| 2011-09-30 | 66.38M shares 10-Q · filed 2012-11-08 | 66.40M shares derived: average of 2 quarters · filed 2012-11-08 | 66.31M shares 10-Q · filed 2012-11-08 | 66.20M shares derived: average of 4 quarters · filed 2013-02-22 | ||||
| 2011-06-30 | 66.43M shares 10-Q · filed 2012-08-03 | 66.27M shares 10-Q · filed 2012-08-03 | 66.15M shares derived: average of 3 quarters · filed 2013-02-22 | 66.03M shares derived: average of 4 quarters · filed 2013-02-22 | ||||
| 2011-03-31 | 66.11M shares 10-Q · filed 2012-05-02 | 66.01M shares derived: average of 2 quarters · filed 2013-02-22 | 65.90M shares derived: average of 3 quarters · filed 2013-02-22 | 65.82M shares derived: average of 4 quarters · filed 2013-02-22 | ||||
| 2010-12-31 | 65.90M shares derived: 10-K 12 month − 10-Q 9 month · filed 2013-02-22 | 65.79M shares derived: average of 2 quarters · filed 2013-02-22 | 65.73M shares derived: average of 3 quarters · filed 2013-02-22 | 65.68M shares 10-K · filed 2013-02-22 | ||||
| 2010-09-30 | 65.68M shares 10-Q · filed 2011-11-02 | 65.64M shares derived: average of 2 quarters · filed 2011-11-02 | 65.60M shares 10-Q · filed 2011-11-02 | |||||
| 2010-06-30 | 65.61M shares 10-Q · filed 2011-08-03 | 65.57M shares 10-Q · filed 2011-08-03 | ||||||
| 2009-12-31 | 65.42M shares 10-K · filed 2012-02-23 |
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