SEC Form 4 · accession 0001140361-17-043287
WESTLAKE CORP · WLK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Robert F. Buesinger
Officer — EVP, Vinyls Products
Period of report
Nov 20, 2017
Accepted (ET)
Nov 20, 2017 · 9:45 am 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 | Nov 17, 2017 | M | 5,214 | $63.9775 | A | 14,523 | D | |
| Common Stock | Nov 17, 2017 | S | 5,214 | $93.8242 | D | 9,309 | 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 | Nov 14, 2017 | M | 5,214 | A | — | Feb 14, 2024 | Common Stock | 5,214 | 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.