(Telecompaper) Social media website Pinterest has filed an amendment with the SEC for the registration of its IPO. The company said it will be offering 75 million shares at an expected price of USD 15-17 per unit. With this range, the company would be raising USD 1.125-1.275 billion in total. The company said that including the greenshoe of 11.25 million additional shares, a maximum of USD 1.46 billion could be raised.