Facebook Co-Founder Saverin Gives Up U.S. Citizenship

May 11 (Bloomberg) -- Eduardo Saverin, the billionaire co- founder of Facebook Inc., renounced his U.S. citizenship before an initial public offering that values the social network at as much as $96 billion, a move that may reduce his tax bill.

Facebook plans to raise as much as $11.8 billion through the IPO, the biggest in history for an Internet company. Saverin's stake is about 4 percent, according to the website whoownsfacebook.com. At the high end of the proposed IPO market capitalization, that would be worth about $3.84 billion. His holdings aren't listed in Facebook's regulatory filings.