Yorktown Management & Research Company’s Prothena Corp PRTA Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2014 Q2	–	Sell	-10,400	Closed	-$398K	–	501
2014 Q1	$398K	Hold	10,400	–	–	0.08%	131
2013 Q4	$276K	Buy	+10,400	New	+$276K	0.06%	240