Ghost Tree Capital’s Atara Biotherapeutics ATRA Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2017 Q3	–	Sell	-14,000	Closed	-$4.9M	–	54
2017 Q2	$4.9M	Buy	+14,000	New	+$4.9M	1.02%	29
2015 Q4	–	Sell	-4,000	Closed	-$3.14M	–	48
2015 Q3	$3.14M	Hold	4,000	–	–	1.42%	25
2015 Q2	$5.28M	Buy	+4,000	New	+$5.28M	1.71%	22