Ghost Tree Capital’s Prothena Corp PRTA Stock Holding History

Ghost Tree Capital’s Portfolio PRTA Stock Details PRTA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2017 Q2	–	Sell	-100,000	Closed	-$5.58M	–	75
2017 Q1	$5.58M	Buy	+100,000	New	+$5.25M	1.04%	40
2016 Q1	–	Sell	-90,000	Closed	-$6.13M	–	62
2015 Q4	$6.13M	Buy	+90,000	New	+$5.43M	2.51%	17
2014 Q2	–	Sell	-110,000	Closed	-$4.21M	–	71
2014 Q1	$4.21M	Sell	110,000 -20,000	-15%	-$645K	2.5%	9
2013 Q4	$3.45M	Buy	+130,000	New	+$3.26M	2.12%	14

Other funds holding PRTA

WIM

Woodford Investment Management London, United Kingdom $310M AUM 17.41% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

PAI

Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Ghost Tree Capital's PRTA Position: Q2 2017 in Review

Ghost Tree Capital sold out of Prothena Corp (PRTA) in Q2 2017, closing a stake of 100,000 shares — an estimated $5.58M sold.

Ghost Tree Capital first reported a position in PRTA in Q4 2013 and held it in 4 quarters. The position peaked at $6.13M in Q4 2015. 145 funds tracked by Wall St. Rank hold PRTA as of Q2 2017.

Ghost Tree Capital reported no remaining Prothena Corp position as of Q2 2017 after selling out during the quarter.
Ghost Tree Capital sold 100,000 Prothena Corp shares in Q2 2017, an estimated $5.58M.
Ghost Tree Capital first reported a position in Prothena Corp in Q4 2013 and held it in 4 quarters.
Ghost Tree Capital's Prothena Corp position peaked at $6.13M in Q4 2015.
145 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2017.

Based on Ghost Tree Capital's 13F filing for Q2 2017, filed 14 Aug 2017.