Filing Details

Accession Number:
0001140361-13-013594
Form Type:
4
Zero Holdings:
No
Publication Time:
2013-03-21 16:09:33
Reporting Period:
2013-03-19
Filing Date:
2013-03-21
Accepted Time:
2013-03-21 16:09:33
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
1298551 L Jeffrey Taylor 2801 Post Oak Blvd.
Houston TX 77056
Sr Vp, Polyethylene 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 2013-03-19 2,922 $20.53 16,631 No 4 M Direct
Common Stock Acquisiton 2013-03-19 1,555 $60.11 18,186 No 4 M Direct
Common Stock Acquisiton 2013-03-19 2,590 $45.83 20,776 No 4 M Direct
Common Stock Disposition 2013-03-19 8,335 $95.34 12,441 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
Reported Derivative Transactions
Sec. Name Sec. Type Acquisiton - Disposition Date Amount Price Amount - 2 Price - 2
Common Stock Employee Option (right to buy) Disposition 2013-03-19 2,922 $0.00 2,922 $20.53
Common Stock Employee Option (right to buy) Disposition 2013-03-19 1,555 $0.00 1,555 $60.11
Common Stock Employee Option (right to buy) Disposition 2013-03-19 2,590 $0.00 2,590 $45.83
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
0 2013-02-26 2020-02-26 No 4 M Direct
3,111 2013-02-17 2022-02-17 No 4 M Direct
1,295 2013-02-18 2021-02-18 No 4 M Direct
Footnotes
  1. In accordance with the Securities and Exchange Commission's No Action Letter dated June 25, 2008, we have aggregated the sales that occurred on March 19, 2013 for ease of reporting. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $95.03 to $95.58, 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 (1) to this Form 4.