manager	shares	port %	label
Prem Watsa - Fairfax Financial Holdings	42,000	0.25%		history
Davidson Kempner Capital Management	0	<0.01%	Exit	history
Dan Sundheim - D1 Capital Partners	2,843,500	3.4%	New	history
Bill Ackman - Pershing Square	23,142,542	15.6%	Reduce	history