A.R.T. Advisors’s Builders FirstSource BLDR Stock Holding History

Quarter	Market Value	Status	Shares	Shares Change %	Trade Value	Portfolio Weight	Portfolio Position
2020 Q1	–	Sell	-78,510	Closed	-$2M	–	168
2019 Q4	$2M	Sell	78,510 -3,700	-5%	-$94K	0.1%	294
2019 Q3	$1.69M	Sell	82,210 -36,900	-31%	-$759K	0.08%	334
2019 Q2	$2.01M	Buy	+119,110	New	+$2.01M	0.11%	233
2019 Q1	–	Sell	-67,710	Closed	-$739K	–	1317
2018 Q4	$739K	Buy	67,710 +47,990	+243%	+$524K	0.05%	551
2018 Q3	$289K	Sell	19,720 -78,900	-80%	-$1.16M	0.01%	1058
2018 Q2	$1.8M	Sell	98,620 -108,300	-52%	-$1.98M	0.07%	400
2018 Q1	$4.11M	Buy	206,920 +143,800	+228%	+$2.85M	0.16%	148
2017 Q4	$1.38M	Sell	63,120 -24,100	-28%	-$525K	0.06%	503
2017 Q3	$1.57M	Buy	+87,220	New	+$1.57M	0.08%	357
2017 Q2	–	Sell	-159,500	Closed	-$2.38M	–	1415
2017 Q1	$2.38M	Buy	159,500 +82,400	+107%	+$1.23M	0.11%	259
2016 Q4	$845K	Buy	+77,100	New	+$845K	0.05%	533
2016 Q3	–	Sell	-324,111	Closed	-$3.65M	–	686
2016 Q2	$3.65M	Buy	+324,111	New	+$3.65M	0.18%	147
2015 Q3	–	Sell	-93,652	Closed	-$1.2M	–	1364
2015 Q2	$1.2M	Buy	+93,652	New	+$1.2M	0.04%	664
2015 Q1	–	Sell	-10,752	Closed	-$73K	–	1434
2014 Q4	$73K	Sell	10,752 -30,505	-74%	-$207K	﹤0.01%	1324
2014 Q3	$224K	Sell	41,257 -16,499	-29%	-$89.6K	0.01%	1050
2014 Q2	$432K	Buy	+57,756	New	+$432K	0.02%	843
2014 Q1	–	Sell	-83,087	Closed	-$592K	–	1331
2013 Q4	$592K	Sell	83,087 -30,281	-27%	-$216K	0.03%	704
2013 Q3	$666K	Buy	113,368 +59,448	+110%	+$349K	0.04%	658
2013 Q2	$322K	Buy	+53,920	New	+$322K	0.01%	1016