Wesco Financial
It was for a long time 80 . 1% owned by Blue Chip Stamps , which is wholly owned by Berkshire Hathaway , which is controlled by legendary investor Warren Buffett . 
<triplet> Berkshire Hathaway <subj> Warren Buffett <obj> owned by <triplet> Warren Buffett <subj> Berkshire Hathaway <obj> owner of