Click to view a price quote on BRK.A. Click to research the Insurance industry. : While billionaire investor Warren Buffett has always tended to stay away from investing in tech companies, he made his first foray into Apple (AAPL) last year and the company's fourth-quarter earnings beat forecasts and proved the largest shareholder of Berkshire Hathaway (BRK.A) right. Apple reported earnings of $2.07 per share, which topped forecasts of $1.87 and the company's revenue of $52.58 billion exceeded the forecast of $50.69 billion. Shares of Apple are hovering around an all-time high.