Filing Details

Accession Number:
0001140361-18-012224
Form Type:
4
Zero Holdings:
No
Publication Time:
2018-03-06 14:50:44
Reporting Period:
2018-03-05
Accepted Time:
2018-03-06 14:50:44
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1262823 Westlake Chemical Corp WLK Industrial Organic Chemicals (2860) 760346924
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1488587 F. Robert Buesinger 2801 Post Oak Boulevard, Suite 600
Houston TX 77056
Evp, Vinyl Products No Yes No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Acquisiton 2018-03-05 6,608 $68.09 14,731 No 4 M Direct
Common Stock Acquisiton 2018-03-05 4,446 $44.42 19,177 No 4 M Direct
Common Stock Acquisiton 2018-03-05 4,261 $61.87 23,438 No 4 M Direct
Common Stock Disposition 2018-03-05 15,315 $113.05 8,123 No 4 S Direct
Common Stock Disposition 2018-03-05 4,034 $113.00 4,089 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 M Direct
No 4 M Direct
No 4 M Direct
No 4 S Direct
No 4 S Direct
Reported Derivative Transactions
Sec. Name Sec. Type Acquisiton - Disposition Date Amount Price Amount - 2 Price - 2
Common Stock Employee Option (right to buy) Disposition 2018-03-05 6,608 $0.00 6,608 $68.09
Common Stock Employee Option (right to buy) Disposition 2018-03-05 4,446 $0.00 4,446 $44.42
Common Stock Employee Option (right to buy) Disposition 2018-03-05 4,261 $0.00 4,261 $61.87
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
0 2025-02-20 No 4 M Direct
4,581 2026-02-18 No 4 M Direct
8,652 2027-02-17 No 4 M Direct
Footnotes
  1. The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2016, 2017 and 2018, respectively.
  2. The stock options are excercisable in three installments of 33%, 33% and 34% on February 18, 2017, 2018 and 2019, respectively.
  3. The stock options are excercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively.
  4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $113.00 to $113.10, 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.