manager	shares	port %	label
Richard Pzena - Pzena Investment Management	0	<0.01%	Exit	history
Spencer Waxman - Shannon River Fund Management	443,100	8.4%	New	history
Starboard Value	8,270,000	10.9%	New	history
Vulcan Value Partners	2,377,959	3.2%	Reduce	history