Rafferty Asset Management’s Spark Therapeutics, Inc. Common Stock ONCE Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2019 Q4	–	Sell	-61,872	Closed	-$6M	–	920
2019 Q3	$6M	Buy	61,872 +11,269	+22%	+$1.09M	0.09%	127
2019 Q2	$5.18M	Buy	50,603 +22,573	+81%	+$2.31M	0.09%	156
2019 Q1	$3.19M	Buy	+28,030	New	+$3.19M	0.05%	208