SEC Form 4 · accession 0001140361-18-009761
WESTLAKE CORP · WLK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
L. Benjamin Ederington
Officer — SVP, GC, CAO and Secretary
Period of report
Feb 22, 2018
Accepted (ET)
Feb 23, 2018 · 12:49 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 | Feb 22, 2018 | M | 1,066 | $63.9775 | A | 13,111 | D | |
| Common Stock | Feb 22, 2018 | M | 5,876 | $68.09 | A | 18,987 | D | |
| Common StockF3 | Feb 22, 2018 | S | 6,942 | $111.447 | D | 12,045 | 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)F1 | $63.9775 | Feb 22, 2018 | M | 1,066 | D | — | Feb 14, 2024 | Common Stock | 1,066 | 0 | D |
| Employee Option (right to buy)F2 | $68.09 | Feb 22, 2018 | M | 5,876 | D | — | Feb 20, 2025 | Common Stock | 5,876 | 0 | D |
Explanation of responses
- F1The stock options are excercisable in three installments of 33%, 33% and 34% on February 14, 2015, 2016 and 2017.
- F2The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2016, 2017 and 2018.
- F3The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $111.36 to $111.74, 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.