Ultragenyx Pharmaceutical faces class-action lawsuit over misleading investor statements.
ByAinvest
Friday, Feb 6, 2026 2:03 am ET1min read
RARE--
Ultragenyx Pharmaceutical Inc. is being investigated for allegedly misleading investors regarding the Phase III Orbit and Cosmic Studies for setrusumab in patients with Osteogenesis Imperfecta. A class action lawsuit was filed on behalf of investors who purchased the company's common stock between August 3, 2023 and December 26, 2025. The complaint alleges that defendants provided material information about the expected results of the studies, including confidence in setrusumab's efficacy.
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