A.R.T. Advisors’s Cardiovascular Systems, Inc. CSII Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2019 Q2	–	Sell	-20,749	Closed	-$802K	–	1718
2019 Q1	$802K	Buy	20,749 +5,500	+36%	+$186K	0.05%	566
2018 Q4	$434K	Buy	15,249 +6,794	+80%	+$216K	0.03%	786
2018 Q3	$330K	Buy	+8,455	New	+$313K	0.02%	1008
2018 Q2	–	Sell	-13,455	Closed	-$295K	–	1854
2018 Q1	$295K	Sell	13,455 -10,400	-44%	-$250K	0.01%	1131
2017 Q4	$565K	Sell	23,855 -1,100	-4%	-$27.7K	0.03%	843
2017 Q3	$702K	Sell	24,955 -13,500	-35%	-$411K	0.04%	699
2017 Q2	$1.24M	Sell	38,455 -14,500	-27%	-$442K	0.07%	434
2017 Q1	$1.5M	Buy	52,955 +7,700	+17%	+$204K	0.07%	407
2016 Q4	$1.09M	Buy	+45,255	New	+$1.11M	0.07%	453
2016 Q1	–	Sell	-40,263	Closed	-$608K	–	1731
2015 Q4	$608K	Buy	+40,263	New	+$598K	0.03%	773
2015 Q3	–	Sell	-79,271	Closed	-$2.1M	–	1670
2015 Q2	$2.1M	Buy	79,271 +67,388	+567%	+$2.18M	0.07%	428
2015 Q1	$463K	Sell	11,883 -10,361	-47%	-$357K	0.02%	938
2014 Q4	$669K	Buy	22,244 +5,354	+32%	+$153K	0.03%	817
2014 Q3	$399K	Buy	+16,890	New	+$480K	0.02%	843
2014 Q2	–	Sell	-22,509	Closed	-$715K	–	1589
2014 Q1	$715K	Buy	22,509 +15,243	+210%	+$503K	0.04%	621
2013 Q4	$249K	Sell	7,266 -13,182	-64%	-$384K	0.01%	1036
2013 Q3	$409K	Buy	+20,448	New	+$426K	0.02%	858