 LOS ANGELES--BUSINESS WIRE--- TEDU CLASSACTION--Glancy Prongay Murray LLP GPM reminds investors of the upcoming August 23, 2021 deadline to file a lead plaintiff motion in the class action filed on behalf of investors who purchased or otherwise acquired Tarena International, Inc. Tarena or the Company NASDAQ: TEDU securities between August 16, 2016 and November 1, 2019, inclusive the Class Period. If you suffered a loss on your Tarena investments or would like to inquire about potentially p 