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Warren Buffett has been remarkably disciplined at adding to his Apple position when it is relatively cheap, Bernstein's Toni Sacconaghi wrote.
Read MoreWarren Buffett upgraded his Cadillac in 2014 after GM's CEO sold him on the idea. His old car fetched more than $122,000 in a charity auction.
Read MoreGreg Abel will likely work more closely with Warren Buffett after Charlie Munger, his old friend and vice chair of Berkshire Hathaway, died Tuesday.
Read MoreLola Banjo told Warren Buffett that her ambition was to be the CFO of BMW. She should aspire to own the company or one like it, the investor said.
Read MoreWarren Buffett's Berkshire Hathaway has amassed a record $157 billion of liquid assets as the investor sees opportunities ahead, John Malone said.
Read MoreWarren Buffett's company has slashed its HP stake by 12% in recent days, reducing its ownership of the PC and printer maker to below 11%.
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