 Los Angeles, California--Newsfile Corp. - May 4, 2020 - The Schall Law Firm, a national shareholder rights litigation firm, announces the filing of a class action lawsuit against Allakos Inc. NASDAQ: ALLK Allakos 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 August 5, 2019 and December 17, 2019, inclusive the ... 