SEC Form 4 · accession 0001140361-17-010641
WESTLAKE CORP · WLK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Robert F. Buesinger
Officer — Sr. Vice President, Vinyls
Period of report
Mar 1, 2017
Accepted (ET)
Mar 3, 2017 · 6:47 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 | Mar 1, 2017 | M | 3,748 | $45.6975 | A | 13,057 | D | |
| Common Stock | Mar 1, 2017 | M | 4,445 | $44.42 | A | 17,502 | D | |
| Common Stock | Mar 1, 2017 | S | 8,193 | $66.25 | 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 | $45.6975 | Mar 1, 2017 | M | 3,748 | D | — | Feb 15, 2023 | Common Stock | 3,748 | 0 | D |
| Employee Option (right to buy)F2 | $44.42 | Mar 1, 2017 | M | 4,445 | D | — | Feb 18, 2026 | Common Stock | 4,445 | 45 | D |
Explanation of responses
- F1The stock options are exercisable in three installments of 33%, 33% and 34% on February 15, 2014, 2015, and 2016, respectively.
- F2The stock options are exercisable in three installments of 33%, 33% and 34% on February 18, 2017, 2018, and 2019, respectively.