BlackRock Fund Advisors’s Medidata Solutions, Inc. MDSO Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2016 Q4	$211M	Buy	4,257,221 +476,607	+13%	+$24.7M	0.04%	604
2016 Q3	$211M	Buy	3,780,614 +173,397	+5%	+$9.19M	0.04%	508
2016 Q2	$169M	Buy	3,607,217 +109,795	+3%	+$4.78M	0.04%	601
2016 Q1	$135M	Sell	3,497,422 -21,744	-0.6%	-$845K	0.03%	716
2015 Q4	$173M	Buy	3,519,166 +178,710	+5%	+$7.87M	0.04%	569
2015 Q3	$141M	Buy	3,340,456 +85,022	+3%	+$4.32M	0.04%	660
2015 Q2	$177M	Buy	3,255,434 +28,498	+0.9%	+$1.53M	0.04%	552
2015 Q1	$158M	Buy	3,226,936 +147,981	+5%	+$6.85M	0.04%	639
2014 Q4	$147M	Buy	3,078,955 +300,608	+11%	+$13M	0.04%	648
2014 Q3	$123M	Buy	2,778,347 +58,442	+2%	+$2.59M	0.03%	687
2014 Q2	$116M	Sell	2,719,905 -186,652	-6%	-$7.75M	0.03%	753
2014 Q1	$158M	Buy	2,906,557 +52,133	+2%	+$3.18M	0.05%	509
2013 Q4	$173M	Buy	2,854,424 +66,274	+2%	+$3.67M	0.05%	444
2013 Q3	$138M	Buy	2,788,150 +456,030	+20%	+$20.1M	0.05%	527
2013 Q2	$90.3M	Buy	+2,332,120	New	+$76M	0.03%	729