William Blair & Company’s US Ecology, Inc. ECOL Stock Holding History

William Blair & Company’s Portfolio ECOL Stock Details ECOL Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2015 Q1	–	Sell	-178,672	Closed	-$7.17M	–	2209
2014 Q4	$7.17M	Buy	178,672 +1,708	+1%	+$73K	0.01%	948
2014 Q3	$8.28M	Buy	176,964 +6,910	+4%	+$317K	0.01%	896
2014 Q2	$8.32M	Sell	170,054 -310,446	-65%	-$14.3M	0.01%	887
2014 Q1	$17.8M	Buy	480,500 +31,620	+7%	+$1.16M	0.03%	597
2013 Q4	$16.7M	Sell	448,880 -148,907	-25%	-$5.15M	0.03%	599
2013 Q3	$18M	Sell	597,787 -3,759	-0.6%	-$110K	0.03%	536
2013 Q2	$16.5M	Buy	+601,546	New	+$16.5M	0.03%	535

Other funds holding ECOL

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

BCM

Bares Capital Management Austin, Texas $1.08B AUM 38.13% 1-Year Est. Return

BFA

BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 1-Year Est. Return

Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return

SAM

Silvercrest Asset Management New York $15.3B AUM 40.56% 1-Year Est. Return

Lord, Abbett & Co Jersey City, New Jersey $34.9B AUM 72.7% 1-Year Est. Return

ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

William Blair & Company's ECOL Position: Q1 2015 in Review

William Blair & Company sold out of US Ecology, Inc. (ECOL) in Q1 2015, closing a stake of 178,672 shares — an estimated $7.17M sold.

William Blair & Company first reported a position in ECOL in Q2 2013 and held it in 7 quarters. The position peaked at $18M in Q3 2013. 148 funds tracked by Wall St. Rank hold ECOL as of Q1 2015.

William Blair & Company reported no remaining US Ecology, Inc. position as of Q1 2015 after selling out during the quarter.
William Blair & Company sold 178,672 US Ecology, Inc. shares in Q1 2015, an estimated $7.17M.
William Blair & Company first reported a position in US Ecology, Inc. in Q2 2013 and held it in 7 quarters.
William Blair & Company's US Ecology, Inc. position peaked at $18M in Q3 2013.
148 funds tracked by Wall St. Rank held US Ecology, Inc. as of Q1 2015.

Based on William Blair & Company's 13F filing for Q1 2015, filed 11 May 2015.