Berkshire Hathaway

American billionaire Warren Buffett's Berkshire Hathaway group has officially become the top shareholder in Bank of America after exercising its right to buy 700 million shares at a discount.

Buffett had received the warrants in 2011 after investing $5 billion in the bank, which was suffering at the time from the fallout from the global financial crisis.

Investor Warren Buffett's holding company Berkshire Hathaway significantly slashed its Walmart stock last quarter, opting to invest billions in airlines and technology instead.

Warren Buffett's Berkshire Hathaway will buy Precision Castparts, a leading metal products supplier to the aerospace industry, for $37.2 billion, the companies said on Aug. 10 in a joint statement.

Warren Buffett, the multi-millionaire American business magnate and investor has reportedly bought the Greek island of Agios Thomas, located on the northwestern side of the island of Egina in the Saronic Gulf. In a joint venture with Italian millionaire Alessandro Proto, the two men closed the deal by reportedly paying out 15 million euros last Thursday.