SEC Form 4 · accession 0001140361-18-023144
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 11, 2018
Accepted (ET)
May 14, 2018 · 9:38 am 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 11, 2018 | M | 16,826 | $30.0525 | A | 32,636 | D | |
| Common Stock | May 11, 2018 | M | 6,680 | $22.915 | A | 39,316 | D | |
| Common StockF1 | May 11, 2018 | S | 23,506 | $117.33 | 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)F2 | $30.0525 | May 11, 2018 | M | 16,826 | D | — | Feb 17, 2022 | Common Stock | 16,826 | 0 | D |
| Employee Option (right to buy)F3 | $22.915 | May 11, 2018 | M | 6,680 | D | — | Feb 18, 2021 | Common Stock | 6,680 | 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 $116.85 to $117.59, 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 stock options are excercisable in three installments of 33%, 33% and 34% on February 17, 2013, 2014 and 2015, respectively.
- F3The stock options are excercisable in three installments of 33%, 33% and 34% on February 18, 2012, 2013 and 2014, respectively.