Filing Details

Accession Number:
0001140361-12-010057
Form Type:
4
Zero Holdings:
No
Publication Time:
2012-02-22 16:09:32
Reporting Period:
2012-02-17
Filing Date:
2012-02-22
Accepted Time:
2012-02-22 16:09:32
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
1330417 Steven Mark Bender 2801 Post Oak Blvd.
Houston TX 77056
Sr V P, Cfo & Treasurer 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 2011-02-25 7,767 $19.29 68,148 No 4 M Direct
Common Stock Disposition 2011-02-25 2,000 $46.68 66,148 No 4 S Direct
Common Stock Disposition 2011-02-25 2,000 $46.67 64,148 No 4 S Direct
Common Stock Disposition 2011-02-25 160 $46.58 63,988 No 4 S Direct
Common Stock Disposition 2011-02-25 2,800 $46.53 61,188 No 4 S Direct
Common Stock Disposition 2011-02-25 3,000 $46.52 58,188 No 4 S Direct
Common Stock Disposition 2011-02-25 429 $46.50 57,759 No 4 S Direct
Common Stock Disposition 2011-02-25 1,100 $46.49 56,659 No 4 S Direct
Common Stock Disposition 2011-02-25 200 $46.48 56,459 No 4 S Direct
Common Stock Disposition 2011-02-25 200 $46.47 56,259 No 4 S Direct
Common Stock Disposition 2011-02-25 451 $46.46 55,808 No 4 S Direct
Common Stock Disposition 2011-02-25 2,317 $46.45 53,491 No 4 S Direct
Common Stock Disposition 2011-02-25 1,099 $46.44 52,392 No 4 S Direct
Common Stock Disposition 2011-02-25 600 $46.43 51,792 No 4 S Direct
Common Stock Disposition 2011-02-25 5,145 $46.41 46,647 No 4 S Direct
Common Stock Disposition 2011-02-25 300 $46.40 46,347 No 4 S Direct
Common Stock Disposition 2011-02-25 2,949 $46.39 43,398 No 4 S Direct
Common Stock Disposition 2011-02-25 200 $46.38 43,198 No 4 S Direct
Common Stock Disposition 2011-02-25 100 $46.37 43,098 No 4 S Direct
Common Stock Disposition 2011-02-25 883 $46.35 42,215 No 4 S Direct
Common Stock Disposition 2011-02-25 500 $46.34 41,715 No 4 S Direct
Common Stock Acquisiton 2011-02-25 1,400 $46.31 40,315 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 M Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S 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 2011-02-25 20,066 $0.00 20,066 $14.24
Common Stock Employee Option (right to buy) Disposition 2011-02-25 7,767 $0.00 7,767 $19.29
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
10,034 2011-02-13 2019-02-13 No 4 M Direct
0 2011-02-15 2018-02-15 No 4 M Direct