Portolan Capital Management’s Gibraltar Industries ROCK Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2021 Q2	–	Sell	-69,976	Closed	-$6.4M	–	154
2021 Q1	$6.4M	Sell	69,976 -917	-1%	-$83.9K	0.5%	86
2020 Q4	$5.1M	Buy	70,893 +28,650	+68%	+$2.06M	0.46%	80
2020 Q3	$2.75M	Buy	+42,243	New	+$2.75M	0.31%	100