DCM
IO

Driehaus Capital Management’s ION Geophysical Corporation IO Stock Holding History

Driehaus Capital Management’s Portfolio IO Stock Details IO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change % 		Capital Flow Portfolio Weight Portfolio Position
2016
Q1 		– Sell
-3,683
Closed -$28K – 684
2015
Q4 		$28K Buy
+3,683
New +$28K ﹤0.01% 499