Rock Springs Capital Management’s Alkermes ALKS Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$6.51M	Buy	183,986 +44,758	+32%	+$1.39M	0.38%	60
2025 Q4	$3.9M	Buy	139,228 +32,691	+31%	+$979K	0.2%	81
2025 Q3	$3.2M	Buy	+106,537	New	+$3M	0.19%	72
2017 Q3	–	Sell	-52,000	Closed	-$3.01M	–	148
2017 Q2	$3.01M	Sell	52,000 -73,000	-58%	-$4.24M	0.15%	114
2017 Q1	$7.31M	Hold	125,000	–	–	0.42%	73
2016 Q4	$6.95M	Sell	125,000 -58,027	-32%	-$3.1M	0.46%	61
2016 Q3	$8.61M	Sell	183,027 -11,473	-6%	-$546K	0.54%	56
2016 Q2	$8.41M	Hold	194,500	–	–	0.62%	50
2016 Q1	$6.65M	Buy	+194,500	New	+$7.68M	0.56%	58
2014 Q3	–	Sell	-41,250	Closed	-$2.08M	–	84
2014 Q2	$2.08M	Buy	41,250 +5,750	+16%	+$265K	0.37%	70
2014 Q1	$1.56M	Buy	35,500 +12,250	+53%	+$583K	0.36%	65
2013 Q4	$945K	Buy	+23,250	New	+$859K	0.34%	63