Westlake Corporation (WLK) Shareholder Equity
- 2026-06-30: Preferred Stock, Value, IssuedUSD $0.00; Common Stock, Value, IssuedUSD $1.00M; Additional Paid in Capital, Common StockUSD $697.00M; Treasury Stock, ValueUSD $532.00M.
- 2026-03-31: Preferred Stock, Value, IssuedUSD $0.00; Common Stock, Value, IssuedUSD $1.00M; Additional Paid in Capital, Common StockUSD $685.00M; Treasury Stock, ValueUSD $504.00M.
- 2025-12-31: Preferred Stock, Value, IssuedUSD $0.00; Common Stock, Value, IssuedUSD $1.00M; Additional Paid in Capital, Common StockUSD $683.00M; Treasury Stock, ValueUSD $513.00M.
- 2025-09-30: Preferred Stock, Value, IssuedUSD $0.00; Common Stock, Value, IssuedUSD $1.00M; Additional Paid in Capital, Common StockUSD $673.00M; Treasury Stock, ValueUSD $484.00M.
Westlake Corporation Shareholder Equity
Filed components and totals, with each concept and unit kept separate. Components can overlap; they are not added together. Missing disclosures remain (m). Original concept pages retain their detailed breakdowns and history.
| Period end | Preferred Stock, Value, Issued USD | Common Stock, Value, Issued USD | Additional Paid in Capital, Common Stock USD | Treasury Stock, Value USD | Accumulated Other Comprehensive Income (Loss), Net of Tax USD | Retained Earnings (Accumulated Deficit) USD | Stockholders' Equity Attributable to Parent USD | Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest USD | Treasury Stock, Common, Shares shares | Treasury Stock, Value, Acquired, Cost Method USD | APIC, Share-based Payment Arrangement, Increase for Cost Recognition USD | Treasury Stock, Shares, Acquired shares | Partners' Capital Account, Units, Sold in Private Placement shares | Partners' Capital Account, Units, Sold in Public Offering shares | Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax USD | AOCI, Debt Securities, Available-for-sale, Adjustment, after Tax USD | Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax USD | Noncontrolling Interest, Increase from Subsidiary Equity Issuance USD | Noncontrolling Interest, Increase from Business Combination USD | Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax USD | Treasury Stock, Shares shares |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-06-30 | $0.00 | $1.00M | $697.00M | $532.00M | $-116.00M | $8.65B | $8.71B | $9.21B | (m) | 3 month · $30.00M | 3 month · $13.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2026-03-31 | $0.00 | $1.00M | $685.00M | $504.00M | $-99.00M | $8.46B | $8.55B | $9.05B | (m) | 3 month · $0.00 | 3 month · $7.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2025-12-31 | $0.00 | $1.00M | $683.00M | $513.00M | $-80.00M | $8.70B | $8.79B | $9.29B | 6.74M | 12 month · $63.00M | 12 month · $41.00M | 12 month · 725.65K | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2025-09-30 | $0.00 | $1.00M | $673.00M | $484.00M | $-77.00M | $9.31B | $9.43B | $9.94B | (m) | (m) | 3 month · $11.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2025-06-30 | $0.00 | $1.00M | $662.00M | $484.00M | $-64.00M | $10.16B | $10.28B | $10.79B | (m) | (m) | 3 month · $12.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2025-03-31 | $0.00 | $1.00M | $650.00M | $484.00M | $-130.00M | $10.37B | $10.41B | $10.92B | (m) | 3 month · $30.00M | 3 month · $7.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2024-12-31 | $0.00 | $1.00M | $656.00M | $467.00M | $-144.00M | $10.48B | $10.53B | $11.04B | 6.42M | 12 month · $60.00M | 12 month · $41.00M | 12 month · 480.08K | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2024-09-30 | $0.00 | $1.00M | $645.00M | $408.00M | $-117.00M | $10.54B | $10.66B | $11.19B | (m) | (m) | 3 month · $10.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2024-06-30 | $0.00 | $1.00M | $635.00M | $413.00M | $-149.00M | $10.50B | $10.57B | $11.09B | (m) | (m) | 3 month · $11.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2024-03-31 | $0.00 | $1.00M | $624.00M | $414.00M | $-132.00M | $10.25B | $10.33B | $10.85B | (m) | (m) | 3 month · $8.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2023-12-31 | $0.00 | $1.00M | $630.00M | $435.00M | $-98.00M | $10.14B | $10.24B | $10.76B | 6.44M | 12 month · $23.00M | 12 month · $40.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2023-09-30 | $0.00 | $1.00M | $619.00M | $440.00M | $-131.00M | $10.71B | $10.75B | $11.29B | (m) | (m) | 3 month · $10.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2023-06-30 | $0.00 | $1.00M | $601.00M | $463.00M | $-79.00M | $10.48B | $10.54B | $11.08B | (m) | 3 month · $1.00M | 3 month · $10.00M | 3 month · 9.55K | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2023-03-31 | $0.00 | $1.00M | $590.00M | $465.00M | $-67.00M | $10.23B | $10.29B | $10.83B | (m) | 3 month · $22.00M | 3 month · $9.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2022-12-31 | $0.00 | $1.00M | $601.00M | $467.00M | $-89.00M | $9.88B | $9.93B | $10.46B | 7.28M | 12 month · $102.00M | 12 month · $35.00M | (m) | (m) | (m) | (m) | (m) | (m) | 12 month · $24.00M | (m) | (m) | 7.28M |
| 2022-09-30 | $0.00 | $1.00M | $590.00M | $439.00M | $-231.00M | $9.70B | $9.62B | $10.19B | (m) | 3 month · $32.00M | 3 month · $8.00M | 3 month · 372.43K | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2022-06-30 | $0.00 | $1.00M | $582.00M | $408.00M | $-116.00M | $9.35B | $9.40B | $9.97B | (m) | 3 month · $41.00M | 3 month · $9.00M | 3 month · 412.49K | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2022-03-31 | $0.00 | $1.00M | $572.00M | $372.00M | $-45.00M | $8.53B | $8.68B | $9.25B | (m) | (m) | 3 month · $8.00M | (m) | (m) | (m) | (m) | (m) | (m) | 3 month · $2.00M | (m) | (m) | (m) |
| 2021-12-31 | $0.00 | $1.00M | $581.00M | $399.00M | $-36.00M | $7.81B | $7.96B | $8.53B | (m) | 12 month · $30.00M | 12 month · $31.00M | (m) | (m) | (m) | (m) | (m) | (m) | 12 month · $30.00M | (m) | (m) | 6.74M |
| 2021-09-30 | $0.00 | $1.00M | $576.00M | $406.00M | $-75.00M | $7.20B | $7.30B | $7.87B | (m) | 3 month · $30.00M | 3 month · $7.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2021-06-30 | $0.00 | $1.00M | $571.00M | $378.00M | $-56.00M | $6.63B | $6.77B | $7.34B | (m) | (m) | 3 month · $7.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2021-03-31 | $0.00 | $1.00M | $564.00M | $379.00M | $-70.00M | $6.14B | $6.26B | $6.83B | (m) | (m) | 3 month · $8.00M | (m) | (m) | (m) | (m) | (m) | (m) | 3 month · $30.00M | (m) | (m) | (m) |
| 2020-12-31 | $0.00 | $1.00M | $569.00M | $401.00M | $-64.00M | $5.94B | $6.04B | $6.58B | (m) | 12 month · $54.00M | 12 month · $29.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 6.82M |
| 2020-09-30 | $0.00 | $1.00M | $563.00M | $409.00M | $-69.00M | $5.86B | $5.95B | $6.49B | (m) | (m) | 3 month · $7.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2020-06-30 | $0.00 | $1.00M | $558.00M | $411.00M | $-87.00M | $5.84B | $5.90B | $6.44B | (m) | (m) | 3 month · $8.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2020-03-31 | $0.00 | $1.00M | $551.00M | $413.00M | $-106.00M | $5.86B | $5.89B | $6.44B | (m) | 3 month · $54.00M | 3 month · $6.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2019-12-31 | $0.00 | $1.00M | $553.00M | $377.00M | $-74.00M | $5.76B | $5.86B | $6.40B | (m) | 12 month · $30.00M | 12 month · $24.00M | (m) | (m) | (m) | (m) | (m) | (m) | 12 month · $63.00M | (m) | (m) | 6.27M |
| 2019-09-30 | $0.00 | $1.00M | $561.00M | $396.00M | $-66.00M | $5.72B | $5.82B | $6.36B | (m) | 3 month · $10.00M | 3 month · $6.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2019-06-30 | $0.00 | $1.00M | $558.00M | $390.00M | $-50.00M | $5.60B | $5.72B | $6.26B | (m) | 3 month · $20.00M | 3 month · $6.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2019-03-31 | $0.00 | $1.00M | $553.00M | $371.00M | $-64.00M | $5.51B | $5.63B | $6.18B | (m) | (m) | 3 month · $7.00M | (m) | (m) | (m) | (m) | (m) | (m) | 3 month · $63.00M | (m) | (m) | (m) |
| 2019-03-29 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 2.94M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2018-12-31 | $0.00 | $1.00M | $556.00M | $382.00M | $-62.00M | $5.48B | $5.59B | $6.08B | (m) | 12 month · $106.00M | 12 month · $18.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 6.18M |
| 2018-09-30 | $0.00 | $1.00M | $562.00M | $337.00M | $-24.00M | $5.40B | $5.60B | $6.09B | (m) | 3 month · $49.00M 9 month · $49.00M | 3 month · $5.00M 9 month · $13.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2018-06-30 | $0.00 | $1.00M | $558.00M | $289.00M | $-33.00M | $5.12B | $5.36B | $5.85B | (m) | (m) | 3 month · $4.00M 6 month · $8.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2018-03-31 | $0.00 | $1.00M | $555.00M | $292.00M | $3.00M | $4.87B | $5.14B | $5.64B | (m) | (m) | 3 month · $4.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2017-12-31 | $0.00 | $1.00M | $555.00M | $302.00M | $7.00M | $4.61B | $4.87B | $5.37B | (m) | (m) | 12 month · $14.00M | (m) | (m) | (m) | (m) | (m) | (m) | 12 month · $111.00M | (m) | (m) | 5.23M |
| 2017-09-30 | $0.00 | $1.35M | $558.42M | $314.69M | $-13.00M | $3.84B | $4.07B | $4.55B | (m) | (m) | 9 month · $10.00M | (m) | (m) | (m) | (m) | (m) | (m) | 9 month · $111.00M | (m) | (m) | 5.55M |
| 2017-09-29 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 5.17M | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2017-06-30 | $0.00 | $1.35M | $555.48M | $316.15M | $-54.00M | $3.65B | $3.84B | $4.21B | (m) | (m) | 6 month · $7.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 5.60M |
| 2017-03-31 | $0.00 | $1.35M | $552.06M | $316.40M | $-104.00M | $3.53B | $3.66B | $4.03B | (m) | (m) | 3 month · $3.00M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 5.61M |
| 2016-12-31 | $0.00 | $1.00M | $551.00M | $319.00M | $-121.00M | $3.41B | $3.52B | $3.89B | (m) | 12 month · $67.00M | 12 month · $7.00M | (m) | (m) | (m) | (m) | (m) | (m) | 12 month · $68.00M | (m) | 12 month · $50.72M | 5.73M |
| 2016-09-30 | $0.00 | $1.35M | $546.52M | $319.98M | $-108.13M | $3.34B | $3.46B | $3.82B | (m) | 9 month · $66.72M | 9 month · $7.78M | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 9 month · $68.00M | 3 month · $51.48M 9 month · $51.89M | 5.75M |
| 2016-06-30 | $0.00 | $1.35M | $545.80M | $322.80M | $-82.10M | $3.30B | $3.44B | $3.74B | (m) | 6 month · $66.72M | 6 month · $5.40M | (m) | (m) | 6 month · 12.94M | (m) | $32.59M | (m) | (m) | (m) | 3 month · $585.00K 6 month · $412.00K | 5.87M |
| 2016-03-31 | $0.00 | $1.35M | $542.89M | $256.46M | $-90.66M | $3.21B | $3.41B | $3.70B | (m) | (m) | 3 month · $2.57M | (m) | (m) | (m) | (m) | $10.62M | (m) | (m) | (m) | 3 month · $-173.00K | 4.37M |
| 2015-12-31 | $0.00 | $1.35M | $542.15M | $258.31M | $-129.29M | $3.11B | $3.27B | $3.56B | (m) | 12 month · $163.00M | 12 month · $12.00M | (m) | (m) | 12 month · 12.94M | (m) | $-5.00M | (m) | 12 month · $2.00M | (m) | 12 month · $475.00K | 4.44M |
| 2015-09-30 | $0.00 | $1.35M | $540.34M | $217.54M | $-121.86M | $3.02B | $3.22B | $3.52B | (m) | 9 month · $122.25M | 9 month · $10.00M | (m) | (m) | 9 month · 12.94M | (m) | $357.00K | (m) | (m) | 9 month · $1.60M | 3 month · $-451.00K 9 month · $1.11M | 3.72M |
| 2015-06-30 | $0.00 | $1.35M | $537.37M | $158.47M | $-119.92M | $2.86B | $3.12B | $3.42B | (m) | 6 month · $62.80M | 6 month · $6.80M | (m) | (m) | 6 month · 12.94M | (m) | $816.00K | (m) | (m) | 6 month · $1.60M | 3 month · $1.99M 6 month · $1.56M | 2.65M |
| 2015-03-31 | $0.00 | $1.35M | $534.54M | $98.28M | $-137.66M | $2.68B | $2.98B | $3.27B | (m) | 3 month · $2.00M | 3 month · $4.04M | (m) | (m) | (m) | (m) | $1.28M | (m) | (m) | (m) | 3 month · $-427.00K | 1.82M |
| 2014-12-31 | $0.00 | $1.35M | $530.44M | $96.37M | $-79.43M | $2.56B | $2.91B | $3.20B | (m) | 12 month · $52.63M | 12 month · $15.96M | (m) | (m) | 12 month · 12.94M | (m) | $233.00K | (m) | 12 month · $286.09M | (m) | 12 month · $209.00K | 1.79M |
| 2014-09-30 | $0.00 | $1.35M | $527.99M | $53.25M | $-36.43M | $2.39B | $2.83B | $3.12B | (m) | 9 month · $9.49M | 9 month · $13.53M | (m) | (m) | (m) | (m) | $3.86M | (m) | 9 month · $286.09M | (m) | 9 month · $355.00K | 1.22M |
| 2014-08-04 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 12.94M | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2014-06-30 | $0.00 | $1.35M | $523.53M | $45.18M | $-132.00K | $2.25B | $2.73B | $2.73B | (m) | (m) | 6 month · $8.95M | (m) | (m) | (m) | (m) | $2.50M | (m) | (m) | (m) | 6 month · $502.00K | 1.20M |
| 2014-03-31 | $0.00 | $1.35M | $519.32M | $46.22M | $-1.78M | $2.10B | $2.57B | $2.57B | (m) | (m) | 3 month · $5.73M | (m) | (m) | (m) | (m) | $1.77M | (m) | (m) | (m) | 3 month · $-151.00K | 1.25M |
| 2013-12-31 | $0.00 | $1.35M | $511.43M | $46.22M | $-2.62M | $1.95B | $2.42B | $2.42B | (m) | 12 month · $32.92M | (m) | (m) | (m) | (m) | (m) | $176.00K | $6.70M | (m) | (m) | 12 month · $-1.68M | 1.25M |
| 2013-09-30 | $0.00 | $673.00K | $509.30M | $32.71M | $-10.92M | $1.80B | $2.27B | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | $131.00K | (m) | (m) | (m) | 9 month · $-1.23M | 506.52K |
| 2013-06-30 | $0.00 | $673.00K | $506.61M | $26.59M | $-11.73M | $1.64B | $2.11B | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 3 month · $-805.00K 6 month · $-805.00K | 446.82K |
| 2013-03-31 | $0.00 | $672.00K | $503.19M | $13.30M | $-11.03M | $1.51B | $1.99B | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 3 month · $-378.00K | 284.49K |
| 2012-12-31 | $0.00 | $672.00K | $496.25M | $13.30M | $-10.84M | $1.40B | $1.87B | $1.87B | (m) | 12 month · $10.78M | (m) | (m) | (m) | (m) | (m) | (m) | $16.35M | (m) | (m) | (m) | 284.49K |
| 2012-09-30 | $0.00 | $670.00K | $486.85M | $13.30M | $-8.16M | $1.57B | $2.03B | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 284.49K |
| 2012-06-30 | (m) | $669.00K | $481.89M | $13.30M | $-9.87M | $1.49B | $1.95B | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | 284.49K |
| 2012-03-31 | (m) | $667.00K | $474.41M | $2.52M | (m) | $1.38B | $1.86B | (m) | (m) | (m) | (m) | (m) | (m) | (m) | $5.40M | $17.52M | $14.79M | (m) | (m) | (m) | 69.82K |
| 2011-12-31 | $0.00 | $666.00K | $467.80M | $2.52M | $-9.07M | $1.30B | $1.76B | $1.76B | (m) | 12 month · $2.52M | (m) | (m) | (m) | (m) | $4.89M | $1.19M | $15.14M | (m) | (m) | (m) | 69.82K |
| 2011-09-30 | (m) | $666.00K | $466.15M | $2.02M | (m) | $1.28B | $1.73B | (m) | (m) | (m) | (m) | (m) | (m) | (m) | $4.57M | $-6.66M | $11.48M | (m) | (m) | (m) | 54.65K |
| 2011-06-30 | (m) | $666.00K | $464.43M | (m) | (m) | $1.21B | $1.67B | (m) | (m) | (m) | (m) | (m) | (m) | (m) | $5.62M | (m) | $11.77M | (m) | (m) | (m) | (m) |
| 2010-12-31 | (m) | $663.00K | $452.70M | (m) | (m) | $1.06B | $1.51B | (m) | (m) | (m) | (m) | (m) | (m) | (m) | $5.29M | (m) | $12.33M | (m) | (m) | (m) | 0.00 |
| 2009-12-31 | (m) | (m) | (m) | (m) | (m) | (m) | $1.28B | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2008-12-31 | (m) | (m) | (m) | (m) | (m) | (m) | $1.24B | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
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