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Home > Insider Trading > Filing (0001140361-12-050434)

Filing Details

Accession Number:: 0001140361-12-050434
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2012-12-10 17:48:47
Reporting Period:: 2012-12-06

Filing Date:: 2012-12-10
Accepted Time:: 2012-12-10 17:48:47
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
1299403	Albert Chao	2801 Post Oak Blvd. Houston TX 77056	President & Ceo	Yes	Yes	Yes	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2012-12-06	25,392	$72.50	158,910	No	4	S	Direct
Common Stock	Disposition	2012-12-06	129	$72.55	158,781	No	4	S	Direct
Common Stock	Disposition	2012-12-06	101	$72.56	158,680	No	4	S	Direct
Common Stock	Disposition	2012-12-06	3,098	$72.60	155,582	No	4	S	Direct
Common Stock	Disposition	2012-12-06	302	$72.61	155,280	No	4	S	Direct
Common Stock	Disposition	2012-12-06	100	$72.64	155,180	No	4	S	Direct
Common Stock	Disposition	2012-12-06	800	$72.66	154,380	No	4	S	Direct
Common Stock	Disposition	2012-12-06	200	$72.67	154,180	No	4	S	Direct
Common Stock	Disposition	2012-12-06	300	$72.69	153,880	No	4	S	Direct
Common Stock	Disposition	2012-12-06	100	$72.70	153,780	No	4	S	Direct
Common Stock	Disposition	2012-12-06	2,000	$72.71	151,780	No	4	S	Direct
Common Stock	Disposition	2012-12-06	30	$72.73	151,750	No	4	S	Direct
Common Stock	Disposition	2012-12-06	500	$72.74	151,250	No	4	S	Direct
Common Stock	Disposition	2012-12-06	100	$72.76	151,150	No	4	S	Direct
Common Stock	Disposition	2012-12-06	100	$72.79	151,050	No	4	S	Direct
Common Stock	Disposition	2012-12-06	500	$72.80	150,550	No	4	S	Direct
Common Stock	Disposition	2012-12-06	100	$72.86	150,450	No	4	S	Direct
Common Stock	Disposition	2012-12-06	410	$72.90	150,040	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
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 Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	20,000	Indirect	By Mother
Common Stock	115,842	Indirect	By Brother James Chao
Common Stock	46,005,277	Indirect	TTWF LP & TTWFGP LLC Trusts

Footnotes

The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.