A.R.T. Advisors’s Geospace Technologies GEOS Stock Holding History

Quarter	Market Value	Status	Shares	Shares Change %	Trade Value	Portfolio Weight	Portfolio Position
2014 Q4	–	Sell	-7,592	Closed	-$266K	–	1494
2014 Q3	$266K	Buy	+7,592	New	+$266K	0.01%	990
2013 Q3	–	Sell	-10,584	Closed	-$731K	–	1362
2013 Q2	$731K	Buy	+10,584	New	+$731K	0.02%	740