 Los Angeles, California--Newsfile Corp. - October 26, 2020 - The Schall Law Firm, a national shareholder rights litigation firm, announces the filing of a class action lawsuit against Allergan plc NYSE: AGN Allergan or the Company 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 May 9, 2017 and December 19, 2018, inclusive... 