R David Hansen

Insider Trading: Sales
Company Symbol Price Amount Relationship Remaining Holdings Date Form 4
WLK $36.11 1,150 Officer 35,555 2010-11-05 Filing
WLK $36.10 29 Officer 36,705 2010-11-05 Filing
WLK $36.09 2,500 Officer 36,734 2010-11-05 Filing
WLK $36.04 600 Officer 39,234 2010-11-05 Filing
WLK $36.03 79 Officer 39,834 2010-11-05 Filing
WLK $28.55 323 Officer 27,234 2010-08-16 Filing
WLK $28.57 1,000 Officer 27,557 2010-08-16 Filing
WLK $24.50 3,400 Officer 25,678 2009-08-07 Filing
WLK $24.53 2,064 Officer 29,078 2009-08-07 Filing
WLK $24.55 1,000 Officer 31,142 2009-08-07 Filing
WLK $24.57 1,000 Officer 32,142 2009-08-07 Filing
WLK $24.60 1,600 Officer 33,142 2009-08-07 Filing
WLK $24.66 400 Officer 34,742 2009-08-07 Filing