SEC Form 4 · accession 0001140361-18-008968
WESTLAKE CORP · WLK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Robert F. Buesinger
Officer — EVP, Vinyl Products
Period of report
Feb 16, 2018
Accepted (ET)
Feb 20, 2018 · 2:00 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001262823
Table I — non-derivative securities
No Table I lines on this filing.
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 | $107.75 | Feb 16, 2018 | A | 9,571 | A | — | Feb 16, 2028 | Common Stock | 9,571 | 9,571 | D |
| Restricted Stock UnitsF2,F3 | — | Feb 16, 2018 | A | 2,569 | A | — | — | Common Stock | 2,569 | 2,569 | D |
Explanation of responses
- F1The stock options are excercisable in three installments of 33%, 33% and 34% on February 16, 2019, 2020 and 2021, respectively.
- F2Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
- F3All of the restricted stock units will vest on February 16, 2021.