Tuniu, China's largest packaged tours website, filed on Friday with the SEC to raise up to $120 million in an initial public offering. The Nanjing, China-based company, which was founded in 2006 and booked $322 million in sales for the fiscal year ended December 31, 2013, plans to list on the NASDAQ under the symbol TOUR. Tuniu initially filed confidentially on January 27, 2014. Morgan Stanley, Credit Suisse and China Renaissance are the joint bookrunners on the deal. No pricing terms were disclosed.