 NEW YORK--BUSINESS WIRE--WHY: Rosen Law Firm, a global investor rights law firm, announces the filing of a class action lawsuit on behalf of purchasers of the securities of Vipshop Holdings Limited NYSE: VIPS between March 22, 2021 and March 29, 2021, inclusive the Class Period. A class action lawsuit has already been filed. If you wish to serve as lead plaintiff, you must move the Court no later than December 13, 2021. SO WHAT: If you purchased Vipshop securities during the Class Perio 