A.R.T. Advisors’s National Presto Industries NPK Stock Holding History

Quarter	Market Value	Status	Shares	Shares Change %	Trade Value	Portfolio Weight	Portfolio Position
2019 Q1	–	Sell	-3,100	Closed	-$362K	–	1514
2018 Q4	$362K	Buy	+3,100	New	+$362K	0.02%	857
2016 Q1	–	Sell	-3,338	Closed	-$276K	–	1566
2015 Q4	$276K	Buy	+3,338	New	+$276K	0.01%	1086