Warren Buffett's Berkshire Hathaway sold another $3 billion of stocks as investor enters home stretch as CEO

1. Berkshire Hathaway's operating profit dropped 4%, hitting $11.2 billion. 2. The company is a net seller of stocks for the 11th consecutive quarter. 3. Buffett's decision to refrain from share repurchases raises concerns. 4. Berkshire's cash pile reached an all-time high of $344 billion. 5. Market has attributed Berkshire's slump to the potential loss of the 'Buffett premium.'