 New York, New York--Newsfile Corp. - April 23, 2021 - The Klein Law Firm announces that a class action complaint has been filed on behalf of shareholders of Athenex, Inc. NASDAQ: ATNX alleging that the Company violated federal securities laws.Class Period: August 7, 2019 and February 26, 2021Lead Plaintiff Deadline: May 3, 2021Learn more about your recoverable losses in ATNX: 