Filing Details

Accession Number:
0001140361-11-014364
Form Type:
4
Zero Holdings:
No
Publication Time:
2011-03-04 16:08:26
Reporting Period:
2011-03-02
Filing Date:
2011-03-04
Filing Date Changed:
2011-03-04
Accepted Time:
2011-03-04 16:08:26
Original Submission Date:
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
1218020 T Robert Blakely 2801 Post Oak Blvd.
Houston TX 77056
Yes No No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings
Common Stock Acquisiton 2011-03-02 2,759 $14.50 10,984
Common Stock Acquisiton 2011-03-02 1,912 $20.83 12,896
Common Stock Acquisiton 2011-03-02 887 $24.51 13,783
Common Stock Acquisiton 2011-03-02 1,440 $27.13 15,223
Common Stock Acquisiton 2011-03-02 1,345 $30.07 16,568
Common Stock Disposition 2011-03-02 8,243 $48.05 8,325
Common Stock Disposition 2011-03-02 100 $48.12 8,225
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 M Direct
No 4 M Direct
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) Acquisiton 2011-03-02 2,759 $0.00 2,759 $14.50
Common Stock Employee Option (right to buy) Acquisiton 2011-03-02 1,912 $0.00 1,912 $20.83
Common Stock Employee Option (right to buy) Acquisiton 2011-03-02 887 $0.00 887 $24.51
Common Stock Employee Option (right to buy) Acquisiton 2011-03-02 1,440 $0.00 1,440 $27.13
Common Stock Employee Option (right to buy) Acquisiton 2011-03-02 1,345 $0.00 1,345 $30.07
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
0 2007-08-16 2017-08-16 No 4 M Direct
1,914 2011-08-15 2021-08-15 No 4 M Direct
2,662 2010-08-20 2020-08-20 No 4 M Direct
480 2010-08-17 2020-08-17 No 4 M Direct
0 2010-08-21 2020-08-21 No 4 M Direct
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