Quantitative Systematic Strategies’s iRobot IRBT Stock Holding History

Quarter	Market Value	Status	Shares	Shares Change %	Trade Value	Portfolio Weight	Portfolio Position
2016 Q1	–	Sell	-8,412	Closed	-$303K	–	587
2015 Q4	$303K	Buy	+8,412	New	+$303K	0.08%	593
2015 Q3	–	Sell	-18,721	Closed	-$600K	–	444
2015 Q2	$600K	Buy	+18,721	New	+$600K	0.13%	273