The Oracle of Omaha has spent over $63 billion since mid-2018 buying a stock that doesn't show up in Berkshire Hathaway's 13F filings or investment portfolio.
Berkshire Hathaway B (BRK.B) closed at $311.52 in the latest trading session, marking a +1.36% move from the prior day.
Yahoo Finance's Brian Sozzi discusses what American Express CEO Stephen Squeri had to say about the credit card company's largest shareholder, Berkshire Hathaway's Warren Buffett.