A.R.T. Advisors’s Martin Marietta Materials MLM Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2020 Q1	–	Sell	-15,715	Closed	-$4.39M	–	623
2019 Q4	$4.39M	Buy	15,715 +4,115	+35%	+$1.1M	0.22%	103
2019 Q3	$3.18M	Buy	+11,600	New	+$2.87M	0.16%	140
2017 Q4	–	Sell	-6,200	Closed	-$1.28M	–	1556
2017 Q3	$1.28M	Buy	+6,200	New	+$1.31M	0.07%	435
2015 Q3	–	Sell	-20,353	Closed	-$2.88M	–	1498
2015 Q2	$2.88M	Buy	20,353 +18,564	+1,038%	+$2.71M	0.1%	320
2015 Q1	$250K	Buy	+1,789	New	+$230K	0.01%	1163
2014 Q3	–	Sell	-20,593	Closed	-$2.72M	–	1444
2014 Q2	$2.72M	Buy	+20,593	New	+$2.59M	0.14%	194
2014 Q1	–	Sell	-40,693	Closed	-$4.07M	–	1468
2013 Q4	$4.07M	Buy	40,693 +31,809	+358%	+$3.13M	0.22%	116
2013 Q3	$872K	Buy	8,884 +2,116	+31%	+$210K	0.05%	559
2013 Q2	$666K	Buy	+6,768	New	+$703K	0.02%	771