William Blair Investment Management’s NexTier Oilfield Solutions Inc. NEX Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2017 Q3	–	Sell	-68,143	Closed	-$1.09M	–	463
2017 Q2	$1.09M	Buy	68,143 +6,448	+10%	+$103K	﹤0.01%	410
2017 Q1	$882K	Buy	+61,695	New	+$882K	﹤0.01%	400