Cortina Asset Management’s Northern Oil and Gas NOG Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2014 Q1	–	Sell	-89,144	Closed	-$13.4M	–	271
2013 Q4	$13.4M	Buy	89,144 +17,327	+24%	+$2.61M	0.49%	75
2013 Q3	$10.4M	Buy	71,817 +10,639	+17%	+$1.54M	0.4%	83
2013 Q2	$8.16M	Buy	+61,178	New	+$8.16M	0.32%	117