Looks like May is the date, trading of shares on Second Market have ended, so the time is nearing.
SAN FRANCISCO | Wed Mar 28, 2012 5:18pm EDT
(Reuters) - Social-networking site Facebook is halting the sale of its shares on secondary markets effective next week as the company prepares to hold its initial public offering in May, according to a person familiar with the matter.
Facebook recently asked firms that arrange trading of its privately held shares to stop doing so, a move intended to reduce churn in its valuation that could complicate matters as it sets an IPO price, according to another person familiar with the matter.
Facebook is planning to raise $5 billion in an offering that could value the company at up to $100 billion, making it the largest IPO in Silicon Valley history.