 NEW YORK, June 23, 2021 PRNewswire -- 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 Tarena International, Inc. NASDAQ: TEDU between August 16, 2016 and November 1, 2019, inclusive the Class Period. The lawsuit seeks to recover damages for Tarena investors under the federal securities laws. 