The latest S-1 filing from social gaming developer Zynga puts the average share prices for its upcoming IPO between $8.50 and $10 per share. The document also showed that CEO Mark Pincus would not be selling any of his shares as part of that IPO.

"Zynga Inc. is offering 100,000,000 shares of its Class A common stock," read the document filed with the Securities and Exchange Commission. "This is our initial public offering, and no public market currently exists for our Class A common stock. We anticipate that the initial public offering price will be between $8.50 and $10.00 per share."

This puts the company's value between $7 to $9 billion USD.