 New York, New York--Newsfile Corp. - June 1, 2021 - The Law Offices of Vincent Wong announce that a class action lawsuit has commenced in the on behalf of investors who purchased FibroGen, Inc. FibroGen NASDAQ: FGEN between October 18, 2017 and April 6, 2021.If you suffered a loss, contact us at the link below. There is no cost or obligation to you. 