Regeneron (REGN) falls 7.08% premarket after securities class action lawsuit filed
ByAinvest Wire
Friday, Aug 7, 2026 4:36 am ET1min read
REGN--
Regeneron (REGN) shares fell 7.08% in premarket trading after a securities class action lawsuit was filed on August 6, 2026. The lawsuit alleges the company misled investors regarding the failure of its Phase 3 Fianlimab-Libtayo trial, creating immediate legal and financial risk.
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