 RADNOR, Pa., Sept. 2, 2021 PRNewswire -- The law firm of Kessler Topaz Meltzer Check, LLP reminds investors that a securities fraud class action lawsuit has been filed against 360 DigiTech, Inc. NASDAQ: QFIN 360 DigiTech on behalf of those who purchased or acquired 360 DigiTech securities between April 30, 2020 and July 7, 2021 , inclusive the Class Period. 