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WESTLAKE CHEMICAL CORP·4

May 10, 4:51 PM ET

Wallace Stephen 4

4 · WESTLAKE CHEMICAL CORP · Filed May 10, 2013

Insider Transaction Report

Form 4
Period: 2013-05-08
WESTLAKE CHEMICAL CORPWLK
Wallace Stephen
VP, General Counsel, Secretary
Transactions
  • Exercise/Conversion

    Common Stock

    2013-05-08$31.61/sh+7,678$242,702→ 35,435 total
  • Exercise/Conversion

    Common Stock

    2013-05-08$27.22/sh+2,594$70,609→ 27,757 total
  • Exercise/Conversion

    Common Stock

    2013-05-08$31.61/sh+3,585$113,322→ 39,020 total
  • Exercise/Conversion

    Employee Option (right to buy)

    2013-05-08−3,585→ 0 total
    Exercise: $31.61From: 2010-02-23Exp: 2017-02-23→ Common Stock (3,585 underlying)
  • Sale

    Common Stock

    2013-05-08$89.80/sh−13,857$1,244,359→ 25,163 total
  • Exercise/Conversion

    Employee Option (right to buy)

    2013-05-08−2,594→ 0 total
    Exercise: $27.22From: 2009-08-31Exp: 2015-08-31→ Common Stock (2,594 underlying)
  • Exercise/Conversion

    Employee Option (right to buy)

    2013-05-08−7,678→ 7,679 total
    Exercise: $31.61From: 2012-02-23Exp: 2017-02-23→ Common Stock (7,678 underlying)
Holdings

  • Common Stock

    (indirect: By Spouse)
    200

Documents

1 file
  • 4
    doc1.xmlPrimary

    FORM 4