SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
BARNETT E WILLIAM

(Last) (First) (Middle)
2801 POST OAK BLVD.

(Street)
HOUSTON TX 77056

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
WESTLAKE CHEMICAL CORP [ WLK ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
11/29/2012
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 11/29/2012 M 1,345 A $30.07 11,904 D
Common Stock 11/29/2012 M 2,661 A $24.51 14,565 D
Common Stock 11/29/2012 M 3,826 A $21 18,391 D
Common Stock 11/30/2012 M 1,920 A $27.125 20,311 D
Common Stock 11/29/2012 S 4,972 D $72.4 15,339 D
Common Stock 11/29/2012 S 200 D $72.41 15,139 D
Common Stock 11/29/2012 S 600 D $72.42 14,539 D
Common Stock 11/29/2012 S 200 D $72.49 14,339 D
Common Stock 11/29/2012 S 400 D $72.52 13,939 D
Common Stock 11/29/2012 S 400 D $72.53 13,539 D
Common Stock 11/29/2012 S 200 D $72.58 13,339 D
Common Stock 11/29/2012 S 200 D $72.61 13,139 D
Common Stock 11/29/2012 S 400 D $72.62 12,739 D
Common Stock 11/29/2012 S 100 D $72.63 12,639 D
Common Stock 11/29/2012 S 100 D $72.64 12,539 D
Common Stock 11/29/2012 S 100 D $72.65 12,439 D
Common Stock 11/29/2012 S 200 D $72.66 12,239 D
Common Stock 11/29/2012 S 400 D $72.67 11,839 D
Common Stock 11/29/2012 S 380 D $72.7 11,459 D
Common Stock 11/29/2012 S 100 D $72.702 11,359 D
Common Stock 11/29/2012 S 100 D $72.705 11,259 D
Common Stock 11/29/2012 S 400 D $72.71 10,859 D
Common Stock 11/29/2012 S 100 D $72.72 10,759 D
Common Stock 11/29/2012 S 100 D $72.7225 10,659 D
Common Stock 11/29/2012 S 100 D $72.74 10,559 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Option (right to buy) $30.07 11/29/2012 M 1,345 08/21/2010 08/21/2016 Common Stock 1,345 $0 0 D
Employee Option (right to buy) $24.51 11/29/2012 M 2,661 08/20/2012 08/20/2019 Common Stock 2,661 $0 888 D
Employee Option (right to buy) $21 11/29/2012 M 3,826 08/15/2012 08/15/2018 Common Stock 3,826 $0 0 D
Employee Option (right to buy) $27.125 11/29/2012 M 1,920 08/17/2011 08/17/2017 Common Stock 1,920 $0 0 D
Explanation of Responses:
Remarks:
E. William Barnett by Richard C. Kroger PoA 12/03/2012
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.