D.E. Shaw & Co’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
2020
Q1
Sell
2019
Q4
$308K Buy
2019
Q2
Sell
2019
Q1
$156K Buy
2015
Q4
Sell
2015
Q3
$7K Sell
2015
Q2
$44K Buy
2015
Q1
$77K Sell
2014
Q4
$185K Sell
2014
Q3
$190K Buy
2014
Q2
$245K Sell
2014
Q1
$1.74M Buy
2013
Q4
$758K Sell
2013
Q3
$1.42M Hold
2013
Q2
$1.64M Buy