The much-awaited IPO of Snap Inc NYSESNAP, the parent of ephemeral photo and video sharing platform Snapchat, is in the works. In an amendment to its Form S-1 filing Monday, the company revealed a longer lock-up period than is the wont, in an apparent reflection of the company's faith in the offering.Locked Up For Way Too Loooong…This company said in the amended filing that about 50 million shares of its Class A common stock purchased by investors in the offering will be subject to a separate lock-up agreement, which provides for a one-year restricted period following the date of the prospectus. This is opposed to the 150-day restricted period for the rest of the shares.Read more