US Stocks: ImmunityBio shares drop 20% on FDA warning letter over cancer therapy claims in ad
- Posted on March 24, 2026
- By Business News Today
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US Stocks: ImmunityBio shares drop 20% on FDA warning letter over cancer therapy claims in ad
Shares of ImmunityBio fell 20% on Tuesday after the U.S. Food and Drug Administration issued a warning letter that said a television advertisement and podcast promoting its cancer therapy were false or misleading and violated federal law.