Warren Buffett's Berkshire Hathaway Buys Big Stake in Kraft Food

Billionaire Warren Buffett's, Berkshire Hathaway has acquired more than 132 million shares of Kraft Food Inc., according to a document filed with the Securities and Exchange Commission Thursday.

The 132 million share or 8.5 percent stake was worth about $4.32 billion as of December 31, according to the SEC filing.

Berkshire begun accumulating its Kraft stake in the second quarter of 2007, the SEC document show.

Mr. Buffett, 76, is the world's most famous and successful investor. He was ranked the second richest person on the planet in 2007 by Forbes magazine with a net worth of $52 billion.

Buffett's $221 billion market cap insurance and investment company's SEC filing, also showed it had acquired an additional 1.5 million shares of Europe's largest drug maker GlaxoSmithKlien.

Shares of Berkshire Hathaway are currently trading at $142,990.00 per share.