Facebook unveils $5bn stock market flotation plans

Facebook said it would seek to raise $5bn, about half the amount many analysts expected.

But the initial public offering (IPO) is still expected to be the biggest sale of shares by an internet company.

Facebook, just eight years old and started by Harvard University students, now has 845 million users and made a profit of $1bn last year.

Facebook filed its intention to float with the Securities and Exchange Commission after the US stock markets closed.

The documents revealed for the first time information about the company that had previously been the subject of speculation.

This included news that Facebook's net income in 2011 rose 65% to $1bn, off revenues of $3.71bn.

It was disclosed that founder Mark Zuckerberg owns 28.4% of Facebook, and also that the network now has 845 million monthly users and 443 million daily users.

The $5bn being raised would be the most for an internet initial public offering since Google and its early backers raised $1.67bn in 2004.

The final amount Facebook will raise is likely to change as Facebook's bankers gauge the investor demand for the shares over the coming months.

The story of the company was made the subject of a 2010 Hollywood film, The Social Network, and the firm has made the verb "to friend" a part of everyday language.

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