Warren Buffett reveals about $600 million of his wealth isn't in Berkshire Hathaway stock

• Warren Buffett revealed he owns about $600 million of assets apart from Berkshire Hathaway stock.
• The investor said his Berkshire A shares, worth $127 billion, represent 99.5% of his net worth.
• He likely keeps most of his remaining wealth in his private portfolio of stocks and bonds.

Warren Buffett just revealed he has about $600 million of personal wealth outside of his Berkshire Hathaway stock.