 NEW YORK, March 17, 2021 PRNewswire -- WHY: Rosen Law Firm, a global investor rights law firm, announces it has filed a class action lawsuit on behalf of purchasers of the securities of Sequential Brands Group, Inc. NASDAQ: SQBG between November 3, 2016 and December 11, 2020, inclusive the Class Period. A class action lawsuit has already been filed. 