manager	shares	port %	label
Murray Stahl - Horizon Kinetics Asset Management	2,295	<0.01%	New	history
Warren Buffett - Berkshire Hathaway	4,986,588	0.17%		history
Valueact Capital - Valueact Holdings	1,777,075	2.9%	Reduce	history
Corvex Management	1,005,434	3.7%		history