Rock Springs Capital Management’s Arrowhead Research ARWR Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2014 Q4	–	Sell	-115,000	Closed	-$1.7M	–	96
2014 Q3	$1.7M	Hold	115,000	–	–	0.26%	76
2014 Q2	$1.65M	Buy	115,000 +40,000	+53%	+$573K	0.3%	73
2014 Q1	$1.23M	Buy	+75,000	New	+$1.23M	0.28%	67