SEC Form 4 · accession 0001140361-18-025119
WESTLAKE CORP · WLK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Mark Steven Bender
Officer — EVP and CFO
Period of report
May 21, 2018
Accepted (ET)
May 22, 2018 · 12:18 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001262823
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | May 21, 2018 | M | 12,066 | $68.09 | A | 27,876 | D | |
| Common StockF1 | May 21, 2018 | S | 2,300 | $121.90 | D | 25,576 | D | |
| Common StockF2 | May 21, 2018 | S | 9,505 | $123.04 | D | 16,071 | D | |
| Common StockF3 | May 21, 2018 | S | 261 | $123.59 | D | 15,810 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Employee Option (right to buy)F4 | $68.09 | May 21, 2018 | M | 12,066 | D | — | Feb 20, 2025 | Common Stock | 12,066 | 0 | D |
Explanation of responses
- F1The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $121.51 to $122.50, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. 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.
- F2The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $122.52 to $123.51, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. 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.
- F3The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $123.58 to $123.61, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. 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.
- F4The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2016, 2017 and 2018, respectively.