SEC Form 4 · accession 0001140361-17-037078
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
Sep 30, 2017
Accepted (ET)
Oct 2, 2017 · 2:46 pm EDT
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 StockF1 | Sep 30, 2017 | M | 6,700 | — | A | 12,424 | D | |
| Common Stock | Oct 2, 2017 | F | 2,141 | $82.94 | D | 10,283 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF1,F2 | — | Sep 30, 2017 | M | 6,700 | D | — | — | Common Stock | 6,700 | 0 | D |
Explanation of responses
- F1Restricted stock units convert into Issuer's common stock on a one-for-one basis.
- F2On September 30, 2013, the reporting person was granted 6,700 restricted stock units vesting on the fourth anniversary of the grant date.