William Blair Investment Management’s Carbon Black, Inc. Common Stock CBLK Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2019 Q2	–	Sell	-860,306	Closed	-$12M	–	432
2019 Q1	$12M	Buy	860,306 +36,012	+4%	+$502K	0.05%	304
2018 Q4	$11.1M	Buy	824,294 +207,500	+34%	+$2.78M	0.05%	288
2018 Q3	$13.1M	Buy	616,794 +41,815	+7%	+$886K	0.05%	318
2018 Q2	$14.9M	Buy	+574,979	New	+$14.9M	0.06%	286