William Blair Investment Management’s U.S. SILICA HOLDINGS, INC. SLCA Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2018 Q3	–	Sell	-8,960	Closed	-$230K	–	495
2018 Q2	$230K	Buy	+8,960	New	+$230K	﹤0.01%	473