Group One Trading’s GulfMark Offshore, Inc. Common Stock GLF Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2016 Q1	–	Sell	-1,000	Closed	-$5K	–	2269
2015 Q4	$5K	Buy	+1,000	New	+$5K	﹤0.01%	1239
2015 Q2	–	Hold	0	–	–	–	2272
2015 Q1	–	Hold	0	–	–	–	2332