Groupon's IPO Turns Andrew Mason, Brad Keywell Into Billionaires
Groupon founder and CEO Andrew Mason attends the second day of the Allen and Company Sun Valley Conference in Sun Valley, Idaho on July 7, 2011. By Clare Baldwin and Alistair Barr NEW YORK/SAN FRANCISCO (Reuters) – Groupon Inc is considering raising The high profile chief executive of Groupon, Andrew Mason, is a billionaire. His [...]