Warren Buffett is wealthier than ever thanks to the stellar performance of his diversified holding company, Berkshire Hathaway. Its coveted Class A stock, which is the most expensive of any public U.S. company, eclipsed $200,000 per share for the first time in August 2014. Buffett moved to 3rd richest on Forbes’ 2015 list of the world’s richest, up 4th richest in 2014. With dozens of subsidiaries, including in railroads, insurance and energy, Berkshire Hathaway posted $182 billion in 2013 revenue and $19.5 billion in net income. Still inking big deals, Buffett’s Berkshire Hathaway bought battery maker Duracell from Procter & Gamble in November 2014 for $4.7 billion.