Andrew D. Mason (born 1980) is an American businessman and entrepreneur. He’s the creator and former CEO of Groupon, a Chicago-based web site offering users reductions on local companies. Additionally in 2011 he sold $10 million worth of Groupon stock ahead of the firm went public in November of this year and he continued to possess 46 million shares. On September 19, 2012, Groupon made a huge move to the work of mobile payments, establishing “Groupon Payments”. Greenberg composed, in part, “Mason’s goofball antics, which may come off more like a huge child than business leader, virtually make a mockery of corporate direction — particularly to get a firm having a market value of more than $3 billion. It might be excusable, even endearing, in the event the business were doing well (believe Herb Kelleher of Southwest Airlines) but it is not. Sales increase is via the floor…”. Mason was blown off as Groupon’s CEO on February 28, 2013, the day following the company missed analysts’ expectations for sales, and fell way short of the mark when it came to gain.