Facebook boosts IPO size as more holders sell stock

Social networking company boosts IPO size as insiders increase planned sales Early investors Thiel, Breyer among those increasing offerings Comes a day after company raised expected price for shares (Updates with quotes from professor beginning in paragraph four as well as more information about Zuckerberg's voting control.) Facebook Inc. boosted the size of its initial public offering to more than 400 million shares as major stockholders sharply increased the number of shares they intend to offer by nearly 50%, potentially lifting the value of the landmark debut to more than $16 billion. Shareholders are now selling as many as 301.3