IAM
IO

Impax Asset Management’s ION Geophysical Corporation IO Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2017
Q4
Sell
-14,000
Closed -$133K 219
2017
Q3
$133K Sell
14,000
-36,000
-72% -$342K 0.01% 196
2017
Q2
$218K Hold
50,000
0.01% 185
2017
Q1
$243K Hold
50,000
0.01% 184
2016
Q4
$300K Hold
50,000
0.02% 171
2016
Q3
$343K Hold
50,000
0.02% 165
2016
Q2
$312K Buy
+50,000
New +$312K 0.02% 176