Boston Partners’s Ocean Rig UDW Inc. Class A Common Shares ORIG Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2014 Q4	–	Sell	-34	Closed	-$5.07M	–	772
2014 Q3	$5.07M	Hold	34	–	–	0.01%	515
2014 Q2	$5.96M	Buy	+34	New	+$5.96M	0.01%	487