Viking Global Investors’s CUBIST PHARMACEUTICALS INC CBST Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2014 Q1	–	Sell	-741,700	Closed	-$51.1M	–	85
2013 Q4	$51.1M	Buy	741,700 +146,996	+25%	+$10.1M	0.24%	57
2013 Q3	$37.8M	Buy	+594,704	New	+$37.8M	0.21%	50