Facebook's (NASDAQ: FB) IPO was five years ago this month. Some investors may remember the stock didn't fare too well right from the get go. In fact, shares traded below the IPO price for their first 14 months on the Nasdaq.In September 2012, right around when Facebook shares were trading at an all-time low, CEO Mark Zuckerberg did an interview with TechCrunch. While investors were pummeling the stock as the company struggled to figure out mobile, Zuckerberg saw the growth of mobile as something that would benefit Facebook immensely.