Rock Springs Capital Management’s Achillion Pharmaceuticals, Inc. ACHN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2020
Q1
Sell
-3,685,000
Closed -$22.2M 141
2019
Q4
$22.2M Sell
3,685,000
-140,000
-4% -$844K 0.7% 56
2019
Q3
$13.8M Buy
3,825,000
+875,000
+30% +$3.15M 0.55% 60
2019
Q2
$7.91M Buy
2,950,000
+250,000
+9% +$670K 0.29% 87
2019
Q1
$7.99M Buy
2,700,000
+375,000
+16% +$1.11M 0.31% 90
2018
Q4
$3.7M Sell
2,325,000
-75,000
-3% -$119K 0.17% 109
2018
Q3
$8.83M Buy
2,400,000
+50,000
+2% +$184K 0.32% 90
2018
Q2
$6.65M Buy
2,350,000
+100,000
+4% +$283K 0.26% 108
2018
Q1
$8.35M Hold
2,250,000
0.36% 90
2017
Q4
$6.48M Buy
2,250,000
+118,600
+6% +$342K 0.29% 95
2017
Q3
$9.57M Buy
2,131,400
+406,400
+24% +$1.82M 0.44% 74
2017
Q2
$7.92M Buy
1,725,000
+225,000
+15% +$1.03M 0.4% 74
2017
Q1
$6.32M Buy
1,500,000
+125,000
+9% +$526K 0.36% 78
2016
Q4
$5.68M Buy
1,375,000
+59,000
+4% +$244K 0.38% 73
2016
Q3
$10.7M Buy
1,316,000
+3,500
+0.3% +$28.4K 0.67% 50
2016
Q2
$10.2M Buy
1,312,500
+92,500
+8% +$722K 0.76% 44
2016
Q1
$9.42M Buy
1,220,000
+115,000
+10% +$888K 0.79% 41
2015
Q4
$11.9M Sell
1,105,000
-20,000
-2% -$216K 0.9% 36
2015
Q3
$7.77M Buy
1,125,000
+25,000
+2% +$173K 0.63% 57
2015
Q2
$9.75M Buy
1,100,000
+500,000
+83% +$4.43M 0.71% 46
2015
Q1
$5.92M Buy
600,000
+235,000
+64% +$2.32M 0.55% 64
2014
Q4
$4.47M Buy
+365,000
New +$4.47M 0.52% 57