By Max Clarke

Riding on a wave of phenomenal popularity in the 3 years since the company’s inception, Groupon is preparing for its initial public offering.

The group buying website that delivers sizeable saving to its millions of customers worldwide yesterday announced today announced that it has filed a registration statement on Form S-1 with the Securities and Exchange Commission for a proposed initial public offering of its Class A common stock. The number of shares to be offered and the price range for the offering have not yet been determined. A portion of the shares will be issued and sold by Groupon, and a portion will be sold by certain stockholders of Groupon.

Analysts at the Financial Times have noted the controversial nature of Groupon’s IPO approach has ‘flouted Wall Street convention’ in a way not seen since Google’s IPO 7 years ago.