Group One Trading’s Alexion Pharmaceuticals ALXN Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q3	–	Sell	-38,700	Closed	-$7.11M	–	9149
2021 Q2	$7.11M	Buy	38,700 +700	+2%	+$120K	0.01%	1371
2021 Q1	$5.81M	Sell	38,000 -111,800	-75%	-$17.3M	0.01%	1384
2020 Q4	$23.4M	Sell	149,800 -63,000	-30%	-$8.1M	0.04%	381
2020 Q3	$24.4M	Sell	212,800 -1,300	-0.6%	-$140K	0.08%	217
2020 Q2	$24M	Buy	214,100 +81,500	+61%	+$8.65M	0.11%	179
2020 Q1	$11.9M	Buy	132,600 +55,000	+71%	+$5.4M	0.1%	201
2019 Q4	$8.39M	Buy	77,600 +15,200	+24%	+$1.63M	0.06%	426
2019 Q3	$6.11M	Buy	62,400 +21,700	+53%	+$2.45M	0.05%	478
2019 Q2	$5.33M	Buy	+40,700	New	+$5.25M	0.05%	484
2019 Q1	–	Sell	-59,700	Closed	-$5.81M	–	5611
2018 Q4	$5.81M	Buy	59,700 +2,800	+5%	+$331K	0.05%	447
2018 Q3	$7.91M	Sell	56,900 -177,200	-76%	-$22.2M	0.06%	357
2018 Q2	$29.1M	Buy	234,100 +104,600	+81%	+$12.2M	0.25%	61
2018 Q1	$14.4M	Sell	129,500 -38,700	-23%	-$4.63M	0.15%	136
2017 Q4	$20.1M	Sell	168,200 -165,300	-50%	-$20.1M	0.14%	139
2017 Q3	$46.8M	Sell	333,500 -900	-0.3%	-$122K	0.42%	22
2017 Q2	$40.7M	Buy	334,400 +277,000	+483%	+$32.2M	0.42%	26
2017 Q1	$6.96M	Sell	57,400 -23,100	-29%	-$2.98M	0.08%	293
2016 Q4	$9.85M	Buy	+80,500	New	+$9.85M	0.1%	226

Other funds holding ALXN