BlackRock Institutional Trust’s US Ecology, Inc. ECOL Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2016 Q4	$27.6M	Buy	560,538 +11,658	+2%	+$527K	﹤0.01%	1735
2016 Q3	$24.6M	Buy	548,880 +11,040	+2%	+$498K	﹤0.01%	1738
2016 Q2	$24.7M	Sell	537,840 -2,724	-0.5%	-$121K	﹤0.01%	1707
2016 Q1	$23.9M	Buy	540,564 +1,273	+0.2%	+$46.1K	﹤0.01%	1695
2015 Q4	$19.7M	Buy	539,291 +7,830	+1%	+$313K	﹤0.01%	1881
2015 Q3	$23.2M	Buy	531,461 +15,378	+3%	+$731K	﹤0.01%	1736
2015 Q2	$25.1M	Sell	516,083 -30,414	-6%	-$1.47M	﹤0.01%	1762
2015 Q1	$27.3M	Buy	546,497 +313	+0.1%	+$14.2K	﹤0.01%	1733
2014 Q4	$21.9M	Sell	546,184 -6,245	-1%	-$267K	﹤0.01%	1838
2014 Q3	$25.8M	Sell	552,429 -12,736	-2%	-$584K	﹤0.01%	1724
2014 Q2	$27.7M	Sell	565,165 -104,613	-16%	-$4.8M	﹤0.01%	1733
2014 Q1	$24.9M	Buy	669,778 +113,687	+20%	+$4.15M	﹤0.01%	1815
2013 Q4	$20.6M	Buy	556,091 +30,550	+6%	+$1.06M	﹤0.01%	1919
2013 Q3	$15.8M	Sell	525,541 -10,682	-2%	-$314K	﹤0.01%	2028
2013 Q2	$14.7M	Buy	+536,223	New	+$14.7M	﹤0.01%	2045