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REGN Stock Drop: Regeneron Clinical Trials Lead to 9% Stock Drop and Securities Fraud Class Action for Investors

$REGNPress releaseAug 4, 2026, 6:36 AM ETRead the release

Bleichmar Fonti & Auld LLP announced a class action lawsuit against Regeneron Pharmaceuticals, alleging securities fraud related to the company's Phase III Fianlimab-Libtayo clinical trial. The complaint claims Regeneron misled investors regarding the trial's success, which allegedly contributed to stock drops of 6.2% and 9.8% in late April and mid-May 2026.

Key figures

Drug Name
Fianlimab-Libtayo
Phase Of Trial
Phase III

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