SEC Form 4 · accession 0001140361-17-042925
WESTLAKE CORP · WLK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
George J Mangieri
Officer — SVP & Chief Accounting Officer
Period of report
Nov 13, 2017
Accepted (ET)
Nov 15, 2017 · 9:48 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 13, 2017 | M | 3,618 | $45.6975 | A | 10,195 | D | |
| Common Stock | Nov 13, 2017 | M | 3,028 | $63.9775 | A | 13,223 | D | |
| Common Stock | Nov 13, 2017 | M | 1,810 | $44.42 | A | 15,033 | D | |
| Common Stock | Nov 13, 2017 | M | 2,010 | $68.09 | A | 17,043 | D | |
| Common StockF5 | Nov 13, 2017 | S | 10,466 | $94.3737 | D | 6,577 | D | |
| Common Stock | Nov 13, 2017 | S | 2,915 | $94.70 | D | 3,662 | 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 | Nov 13, 2017 | M | 3,618 | D | — | Feb 15, 2023 | Common Stock | 3,618 | 0 | D |
| Employee Option (right to buy)F2 | $63.9775 | Nov 13, 2017 | M | 3,028 | D | — | Feb 14, 2024 | Common Stock | 3,028 | 0 | D |
| Employee Option (right to buy)F3 | $44.42 | Nov 13, 2017 | M | 1,810 | D | — | Feb 18, 2026 | Common Stock | 1,810 | 3,675 | D |
| Employee Option (right to buy)F4 | $68.09 | Nov 13, 2017 | M | 2,010 | D | — | Feb 20, 2025 | Common Stock | 2,010 | 1,036 | D |
Explanation of responses
- F1The stock options are excercisable in three installments of 33%, 33% and 34% on February 15, 2014, 2015 and 2016, respectively.
- F2The stock options are excercisable in three installments of 33%, 33% and 34% on February 14, 2015, 2016 and 2017, respectively.
- F3The stock options are excercisable in three installments of 33%, 33% and 34% on February 18, 2017, 2018 and 2019, respectively.
- F4The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2016, 2017 and 2018, respectively.
- F5In accordance with the Securities and Exchange Commission's No Action Letter dated June 25, 2008, we have aggregated the sales that occurred on November 13, 2017 for ease of reporting. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $94.00 to $94.70, 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 (5) to this Form 4.