Exclusive: Groupon Pushed for IPO Filing This Week (With or Without Bankers' Help!)

According to sources close to the situation, social buying phenom Groupon was pressing to file for its expected IPO as soon as this week, even before its bankers had a chance to complexify the situation.

Sources said CEO Andrew Mason and others at the company were pushing for a filing immediately, but that the Chicago start-up has decided to wait a bit--though not long--to get all its investment banking ducks in a row.

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