BlackRock Institutional Trust’s ION Geophysical Corporation IO Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2016
Q4
$952K Hold
2016
Q3
$1.09M Hold
2016
Q2
$988K Sell
2016
Q1
$1.84M Buy
2015
Q4
$1.72M Sell
2015
Q3
$1.37M Buy
2015
Q2
$3.73M Sell
2015
Q1
$8.12M Buy
2014
Q4
$10.2M Sell
2014
Q3
$10.4M Buy
2014
Q2
$15.7M Sell
2014
Q1
$16.5M Buy
2013
Q4
$12.4M Sell
2013
Q3
$23.8M Buy
2013
Q2
$22.9M Buy