BlackRock Institutional Trust’s Alexion Pharmaceuticals ALXN Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2016 Q4	$745M	Buy	6,089,611 +118,510	+2%	+$14.5M	0.11%	188
2016 Q3	$732M	Buy	5,971,101 +284,747	+5%	+$36.7M	0.11%	178
2016 Q2	$664M	Buy	5,686,354 +84,485	+2%	+$12M	0.11%	189
2016 Q1	$780M	Buy	5,601,869 +15,733	+0.3%	+$2.31M	0.13%	158
2015 Q4	$1.07B	Sell	5,586,136 -1,015	-0%	-$177K	0.18%	112
2015 Q3	$874M	Sell	5,587,151 -59,671	-1%	-$10.9M	0.15%	131
2015 Q2	$1.02B	Buy	5,646,822 +351,002	+7%	+$60.6M	0.16%	117
2015 Q1	$918M	Buy	5,295,820 +186,951	+4%	+$33.8M	0.14%	137
2014 Q4	$945M	Buy	5,108,869 +37,005	+0.7%	+$6.86M	0.15%	130
2014 Q3	$841M	Sell	5,071,864 -11,552	-0.2%	-$1.9M	0.14%	145
2014 Q2	$794M	Sell	5,083,416 -167,216	-3%	-$26.4M	0.13%	158
2014 Q1	$799M	Buy	5,250,632 +221,938	+4%	+$35.3M	0.14%	146
2013 Q4	$668M	Sell	5,028,694 -89,198	-2%	-$10.7M	0.12%	170
2013 Q3	$594M	Sell	5,117,892 -47,941	-0.9%	-$5.26M	0.11%	179
2013 Q2	$476M	Buy	+5,165,833	New	+$498M	0.1%	210