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Fortune
Fortune
Emma Burleigh

Warren Buffett warns bosses of the ‘cardinal sin’ of leadership—and his biggest investing mistakes

Warren Buffett Berkshire Hathaway Berkshire
Berkshire Hathaway CEO Warren Buffett. (Credit: Bonnie Schiffman Photography / Getty Images)
  • Warren Buffett has made many mistakes while leading the $990 billion Berkshire Hathaway for over five decades—and he’s just candidly revealed them in his latest letter to the holding company’s shareholders.  

Warren Buffett has built up Berkshire Hathaway as a $990 billion empire. But even the most successful businessmen slip up sometimes. In the latest letter to Berkshire Hathaway shareholders this month, he’s confronted his faults as CEO of the holding giant since 1970. 

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