IBRX 4-DAY DEADLINE ALERT: ImmunityBio (IBRX) Investors Face Losses Amid FDA Warning Regarding Unsupported Cancer Treatment Claims – Hagens Berman

ImmunityBio (IBRX) is facing a securities class action lawsuit after the FDA issued a warning letter regarding misleading efficacy claims made by executive chairman Dr. Patrick Soon-Shiong about the company's drug Anktiva. The FDA determined that promotional materials falsely suggested Anktiva could treat all cancers, when it is only approved for non-muscle invasive bladder cancer. The announcement caused IBRX shares to plunge over 21% on March 24, 2026, erasing nearly $2 billion in market capitalization. Hagens Berman is investigating claims that ImmunityBio intentionally misled investors.