RSCM
ALPN

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 0.52% 69
2015
Q2 		$8.55M Buy
+141,090
New +$8.4M 0.62% 57

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