A.R.T. Advisors’s Casa Systems, Inc. Common Stock CASA Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2019 Q2	–	Sell	-52,735	Closed	-$438K	–	1700
2019 Q1	$438K	Buy	52,735 +8,112	+18%	+$67.4K	0.03%	794
2018 Q4	$586K	Buy	+44,623	New	+$586K	0.04%	656
2018 Q3	–	Sell	-70,900	Closed	-$1.16M	–	1788
2018 Q2	$1.16M	Buy	+70,900	New	+$1.16M	0.05%	576