manager	shares	port %	label
Lee Ainslie - Maverick Capital	0	<0.01%	Exit	history
Warren Buffett - Berkshire Hathaway	3,350,000	0.51%	Add	history
Thomas Gayner - Markel Group	5,500	0.02%		history
Tom Bancroft - Makaira Partners	37,000	12.1%		history