
Berkshire Hathaway (NYSE: BRK.A, BKR.B)
Berkshire Hathaway is a holding company with a broad range of subsidiaries engaged in various activities. The firm's primary business segment is insurance, and it is run primarily through Geico, Berkshire Hathaway Reinsurance Group, and Berkshire Hathaway Primary Group.
The company has made use of the excess cash generated from