Facebook is expected to go public next year in one of the largest initial public offerings ever.
It is thought that the social networking site will aim to raise $10bn (£6.4bn) from an IPO, to launch between April and June next year, resulting in a company valuation of more than $100bn.
Although Mark Zuckerberg has kept Facebook private for longer than expected, the company is likely to reach the 500-shareholder limit by the end of this year and will be required to make its financial information public come April as specified by the SEC.
Facebook, thought to have almost $4bn in revenue, would be the fourth US company to complete an IPO with a greater value than $10bn, alongside Visa, General Motors and AT&T Wireless Services.
Groupon floated on 3 November at $20 a share. Shares plunged 43 per cent since last Monday and closed yesterday at $15.24.