WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

Note: Option positions (PUT/CALL) are excluded.

Q2 2014

Shares 2,900 Value ($000) $242 Avg Close $63.36 Range $52.18 - $72.01

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2014	2,900	$242	$63.36	$52.18 - $72.01