 LOS ANGELES, June 24, 2021 PRNewswire -- The Schall Law Firm , a national shareholder rights litigation firm, reminds investors of a class action lawsuit against Tarena International, Inc. Tarena or the Company NASDAQ: TEDU for violations of 10b and 20a of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by the U.S. Securities and Exchange Commission. Investors who purchased the Companys securities between August 16, 2016 and November 1, 2019, inclusive the Class Period, are encouraged to contact the firm before August 23, 2021. 