Ardsley Advisory Partners’s Alexion Pharmaceuticals ALXN Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2020 Q4	–	Sell	-2,500	Closed	-$286K	–	229
2020 Q3	$286K	Buy	+2,500	New	+$270K	0.07%	112
2019 Q4	–	Sell	-2,500	Closed	-$245K	–	221
2019 Q3	$245K	Sell	2,500 -2,500	-50%	-$282K	0.06%	113
2019 Q2	$653K	Buy	5,000 +1,500	+43%	+$193K	0.13%	83
2019 Q1	$473K	Buy	+3,500	New	+$435K	0.1%	83
2018 Q4	–	Sell	-114,000	Closed	-$15.8M	–	189
2018 Q3	$15.8M	Sell	114,000 -13,000	-10%	-$1.63M	2.88%	17
2018 Q2	$15.8M	Sell	127,000 -20,000	-14%	-$2.34M	2.58%	11
2018 Q1	$16.4M	Sell	147,000 -37,000	-20%	-$4.42M	2.76%	13
2017 Q4	$22M	Buy	184,000 +12,500	+7%	+$1.52M	4.22%	7
2017 Q3	$24.1M	Sell	171,500 -5,000	-3%	-$679K	4.19%	5
2017 Q2	$21.5M	Buy	176,500 +174,500	+8,725%	+$20.3M	4.18%	5
2017 Q1	$242K	Buy	+2,000	New	+$258K	0.05%	127