| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WLK | Common Stock | Options Exercise | $1.03M | +9.57K | +81.25% | $107.75 | 21.4K | May 27, 2022 | Direct | |
| transaction | WLK | Common Stock | Options Exercise | $420K | +4.86K | +22.74% | $86.54 | 26.2K | May 27, 2022 | Direct | |
| transaction | WLK | Common Stock | Sale | -$1.87M | -14.4K | -55.05% | $129.47 | 11.8K | May 27, 2022 | Direct | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WLK | Employee Option (right to buy) | Options Exercise | $0 | -9.57K | -100% | $0.00* | 0 | May 27, 2022 | Common Stock | 9.57K | $107.75 | Direct | F2 |
| transaction | WLK | Employee Option (right to buy) | Options Exercise | $0 | -4.86K | -32.99% | $0.00 | 9.86K | May 27, 2022 | Common Stock | 4.86K | $86.54 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $129.45 to $129.72, inclusive. The reporting person undertakes to provide to Westlake Corporation, any security holder of Westlake Chemical Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. |
| F2 | The stock options were excercisable in three installments of 33%, 33% and 34% on February 16, 2019, 2020 and 2021, respectively. |
| F3 | The stock options were excercisable in three installments of 33%, 33% and 34% on February 19, 2022, 2023 and 2024, respectively. |