A.R.T. Advisors’s WD-40 WDFC Stock Holding History

Quarter	Market Value	Status	Shares	Shares Change %	Trade Value	Portfolio Weight	Portfolio Position
2019 Q1	–	Sell	-3,200	Closed	-$586K	–	1653
2018 Q4	$586K	Buy	+3,200	New	+$586K	0.04%	655
2016 Q2	–	Sell	-2,618	Closed	-$282K	–	1670
2016 Q1	$282K	Buy	+2,618	New	+$282K	0.01%	1064