BlackRock Advisors’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	$156M	Buy	2,117,536 +453,194	+27%	+$36.9M	0.17%	144
2016 Q3	$145M	Buy	1,664,342 +154,652	+10%	+$14.6M	0.16%	162
2016 Q2	$130M	Sell	1,509,690 -346,298	-19%	-$29.9M	0.14%	173
2016 Q1	$148M	Buy	1,855,988 +4,728	+0.3%	+$428K	0.16%	151
2015 Q4	$233M	Buy	1,851,260 +144,624	+8%	+$17.5M	0.25%	103
2015 Q3	$178M	Sell	1,706,636 -1,519,788	-47%	-$195M	0.2%	126
2015 Q2	$398M	Sell	3,226,424 -182,851	-5%	-$23M	0.43%	63
2015 Q1	$402M	Buy	3,409,275 +306,342	+10%	+$36.7M	0.42%	66
2014 Q4	$369M	Buy	3,102,933 +971,254	+46%	+$109M	0.39%	66
2014 Q3	$239M	Buy	2,131,679 +1,000,568	+88%	+$95.3M	0.25%	107
2014 Q2	$107M	Sell	1,131,111 -309,045	-21%	-$21.7M	0.11%	218
2014 Q1	$102M	Sell	1,440,156 -25,580	-2%	-$2.03M	0.1%	226
2013 Q4	$109M	Sell	1,465,736 -90,322	-6%	-$6.29M	0.11%	210
2013 Q3	$118M	Buy	1,556,058 +743,057	+91%	+$59.1M	0.12%	198
2013 Q2	$65.1M	Buy	+813,001	New	+$59.9M	0.07%	276