 NEW YORK--BUSINESS WIRE--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 Fortress Biotech, Inc. NASDAQ: FBIO between December 11, 2019 to October 9, 2020, inclusive the Class Period. The lawsuit seeks to recover damages for Fortress investors under the federal securities laws. To join the Fortress class action, go to or call Phillip Kim, Esq. 