 LOS ANGELES, March 29, 2021 PRNewswire -- The Schall Law Firm , a national shareholder rights litigation firm, reminds investors of a class action lawsuit against MultiPlan Corporation MultiPlan or the Company fka Churchill Capital Corp. III Churchill III or the Company NYSE: MPLN for violations of the securities laws Investors who purchased the Companys securities between July 12, 2020 and November 10, 2020, inclusive the Class Period,and all holders of Churchill III Class A common stock entitled to vote on Churchill IIIs merger with and acquisition of Polaris Parent Corp. and its consolidated subsidiaries collectively, MultiPlan consummated in October 2020 the Merger are encouraged to contact the firm before April 26, 2021. If you are a shareholder who suffered a loss, click here to participate. 