Ardsley Advisory Partners’s Alexion Pharmaceuticals Inc ALXN Stock Holding History

Quarter	Market Value	Status	Shares	Shares Change %	Trade Value	Portfolio Weight	Portfolio Position
2020 Q4	–	Sell	-2,500	Closed	-$286K	–	190
2020 Q3	$286K	Buy	+2,500	New	+$286K	0.06%	94
2019 Q4	–	Sell	-2,500	Closed	-$245K	–	183
2019 Q3	$245K	Sell	2,500 -2,500	-50%	-$245K	0.05%	93
2019 Q2	$653K	Buy	5,000 +1,500	+43%	+$196K	0.1%	68
2019 Q1	$473K	Buy	+3,500	New	+$473K	0.09%	73
2018 Q4	–	Sell	-114,000	Closed	-$15.8M	–	167
2018 Q3	$15.8M	Sell	114,000 -13,000	-10%	-$1.81M	2.14%	13
2018 Q2	$15.8M	Sell	127,000 -20,000	-14%	-$2.48M	2.37%	11
2018 Q1	$16.4M	Sell	147,000 -37,000	-20%	-$4.12M	2.46%	11
2017 Q4	$22M	Buy	184,000 +12,500	+7%	+$1.49M	2.67%	4
2017 Q3	$24.1M	Sell	171,500 -5,000	-3%	-$701K	3.2%	3
2017 Q2	$21.5M	Buy	176,500 +174,500	+8,725%	+$21.2M	3.34%	4
2017 Q1	$242K	Buy	+2,000	New	+$242K	0.04%	103