BlackRock Institutional Trust’s Athenahealth, Inc. ATHN Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2016 Q4	$109M	Buy	1,039,703 +65,891	+7%	+$7.08M	0.02%	868
2016 Q3	$123M	Buy	973,812 +8,935	+0.9%	+$1.14M	0.02%	769
2016 Q2	$133M	Buy	964,877 +31,590	+3%	+$4.18M	0.02%	713
2016 Q1	$130M	Sell	933,287 -6,953	-0.7%	-$954K	0.02%	713
2015 Q4	$151M	Buy	940,240 +8,502	+0.9%	+$1.31M	0.03%	662
2015 Q3	$124M	Sell	931,738 -3,554	-0.4%	-$464K	0.02%	724
2015 Q2	$107M	Sell	935,292 -151,890	-14%	-$18.2M	0.02%	858
2015 Q1	$130M	Buy	1,087,182 +141,817	+15%	+$18.9M	0.02%	775
2014 Q4	$138M	Buy	945,365 +27,839	+3%	+$3.5M	0.02%	702
2014 Q3	$121M	Buy	917,526 +7,487	+0.8%	+$986K	0.02%	743
2014 Q2	$114M	Sell	910,039 -72,174	-7%	-$9.33M	0.02%	810
2014 Q1	$157M	Buy	982,213 +19,339	+2%	+$3.18M	0.03%	636
2013 Q4	$130M	Sell	962,874 -3,310	-0.3%	-$425K	0.02%	705
2013 Q3	$105M	Sell	966,184 -21,998	-2%	-$2.38M	0.02%	765
2013 Q2	$83.7M	Buy	+988,182	New	+$88.4M	0.02%	830