BlackRock Institutional Trust’s Vertex Pharmaceuticals VRTX Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2016 Q4	$481M	Buy	6,532,503 +40,282	+0.6%	+$3.28M	0.07%	275
2016 Q3	$566M	Buy	6,492,221 +144,397	+2%	+$13.6M	0.09%	237
2016 Q2	$546M	Buy	6,347,824 +9,670	+0.2%	+$836K	0.09%	237
2016 Q1	$504M	Buy	6,338,154 +86,478	+1%	+$7.82M	0.08%	242
2015 Q4	$787M	Buy	6,251,676 +81,517	+1%	+$9.84M	0.13%	153
2015 Q3	$643M	Sell	6,170,159 -214,196	-3%	-$27.5M	0.11%	186
2015 Q2	$788M	Sell	6,384,355 -76,522	-1%	-$9.64M	0.13%	160
2015 Q1	$762M	Buy	6,460,877 +144,910	+2%	+$17.4M	0.12%	178
2014 Q4	$750M	Buy	6,315,967 +124,032	+2%	+$14M	0.12%	177
2014 Q3	$695M	Buy	6,191,935 +129,338	+2%	+$12.3M	0.12%	177
2014 Q2	$574M	Buy	6,062,597 +28,401	+0.5%	+$1.99M	0.1%	217
2014 Q1	$427M	Buy	6,034,196 +46,187	+0.8%	+$3.66M	0.07%	257
2013 Q4	$445M	Sell	5,988,009 -97,492	-2%	-$6.79M	0.08%	241
2013 Q3	$461M	Buy	6,085,501 +249,358	+4%	+$19.8M	0.09%	224
2013 Q2	$467M	Buy	+5,836,143	New	+$430M	0.09%	214