R David Hansen

Insider Trading: Sales
Symbol Price Amount Total Value Remaining Holdings Date Form 4
WLK $500.00 500 $250,000.00 6,456 2012-08-06 Filing
WLK $67.22 939 $63,119.58 6,956 2012-08-06 Filing
WLK $67.21 2,300 $154,583.00 7,895 2012-08-06 Filing
WLK $67.20 10,458 $702,777.60 10,195 2012-08-06 Filing
WLK $67.17 100 $6,717.00 20,653 2012-08-06 Filing
WLK $67.16 200 $13,432.00 20,753 2012-08-06 Filing
WLK $67.15 100 $6,715.00 20,953 2012-08-06 Filing
WLK $67.14 300 $20,142.00 21,053 2012-08-06 Filing
WLK $67.13 1,350 $90,625.50 21,353 2012-08-06 Filing
WLK $67.12 600 $40,272.00 22,703 2012-08-06 Filing
WLK $67.11 350 $23,488.50 23,303 2012-08-06 Filing
WLK $67.10 200 $13,420.00 23,653 2012-08-06 Filing
WLK $67.08 1,445 $96,930.74 23,853 2012-08-06 Filing
WLK $67.08 300 $20,124.00 25,298 2012-08-06 Filing
WLK $67.08 9,845 $660,368.14 25,598 2012-08-06 Filing
WLK $67.07 1,000 $67,070.00 35,443 2012-08-06 Filing
WLK $67.06 200 $13,412.00 36,443 2012-08-06 Filing
WLK $67.05 800 $53,640.00 36,643 2012-08-06 Filing
WLK $67.04 300 $20,112.00 37,443 2012-08-06 Filing
WLK $67.03 2,000 $134,060.00 37,743 2012-08-06 Filing