FIBROGEN SHAREHOLDER ALERT by Former Louisiana Attorney General: Kahn Swick & Foti, LLC Reminds Investors With Losses in Excess of $100,000 of Lead Plaintiff Deadline in Class Action Lawsuit Against FibroGen, Inc. – FGEN

Kahn Swick & Foti, LLC (“KSF”) and KSF partner, former Attorney General of Louisiana, Charles C. Foti, Jr., remind investors that they have until June 11,
2021 to file lead plaintiff applications in a securities class action lawsuit against FibroGen, Inc. (NasdaqGS: FGEN), if they purchased the Company’s securities and/or sold put options
between November 8, 2019 and April 6, 2021, inclusive