Rock Springs Capital Management’s Alpine Immune Sciences Inc ALPN Stock Holding History

Rock Springs Capital Management’s Portfolio ALPN Stock Details ALPN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2018 Q1	–	Sell	-150,000	Closed	-$1.68M	–	159
2017 Q4	$1.68M	Hold	150,000	–	–	0.08%	136
2017 Q3	$1.74M	Hold	150,000	–	–	0.08%	132
2017 Q2	$1.45M	Hold	150,000	–	–	0.07%	136
2017 Q1	$1.75M	Buy	150,000 +27,750	+23%	+$281K	0.1%	124
2016 Q4	$1.09M	Hold	122,250	–	–	0.07%	122
2016 Q3	$3.98M	Hold	122,250	–	–	0.25%	99
2016 Q2	$2.25M	Hold	122,250	–	–	0.17%	113
2016 Q1	$2.04M	Hold	122,250	–	–	0.17%	113
2015 Q4	$3.79M	Hold	122,250	–	–	0.29%	98
2015 Q3	$6.34M	Sell	122,250 -18,840	-13%	-$1.24M	0.51%	69
2015 Q2	$8.55M	Buy	+141,090	New	+$8.4M	0.62%	57

Other funds holding ALPN

OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return

Frazier Management Seattle, Washington $1.12M AUM 151.58% 1-Year Est. Return

Deerfield Management New York $9.59B AUM 113.36% 1-Year Est. Return

BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return

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

Tiger Management New York $22.8M AUM 0.71% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return

BCM

Bridgeway Capital Management Houston, Texas $5.69B AUM 60.64% 1-Year Est. Return

Deutsche Bank Frankfurt Am Main Ge, Germany $344B AUM 42.99% 1-Year Est. Return

Rock Springs Capital Management's ALPN Position: Q1 2018 in Review

Rock Springs Capital Management sold out of Alpine Immune Sciences Inc (ALPN) in Q1 2018, closing a stake of 150,000 shares — an estimated $1.68M sold.

Rock Springs Capital Management first reported a position in ALPN in Q2 2015 and held it in 11 quarters. The position peaked at $8.55M in Q2 2015. 28 funds tracked by Wall St. Rank hold ALPN as of Q1 2018.

Rock Springs Capital Management reported no remaining Alpine Immune Sciences Inc position as of Q1 2018 after selling out during the quarter.
Rock Springs Capital Management sold 150,000 Alpine Immune Sciences Inc shares in Q1 2018, an estimated $1.68M.
Rock Springs Capital Management first reported a position in Alpine Immune Sciences Inc in Q2 2015 and held it in 11 quarters.
Rock Springs Capital Management's Alpine Immune Sciences Inc position peaked at $8.55M in Q2 2015.
28 funds tracked by Wall St. Rank held Alpine Immune Sciences Inc as of Q1 2018.

Based on Rock Springs Capital Management's 13F filing for Q1 2018, filed 15 May 2018.