SEC Form 4 · accession 0001140361-17-045021
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
Dec 4, 2017
Accepted (ET)
Dec 5, 2017 · 1:08 pm EST
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 | Dec 4, 2017 | M | 6,500 | $22.915 | A | 30,567 | D | |
| Common StockF1 | Dec 4, 2017 | S | 6,500 | $97.831 | D | 24,067 | 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 | $22.915 | Dec 4, 2017 | M | 6,500 | A | — | Feb 18, 2021 | Common Stock | 6,500 | 6,680 | D |
Explanation of responses
- F1The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $97.35 to $98.17, 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 18, 2012, 2013 and 2014.