Ultragenyx Investors File Securities Class Action Lawsuit

Reuters02-26

Ultragenyx Investors File Securities Class Action Lawsuit

Investors who bought or acquired Ultragenyx Pharmaceutical Inc. shares between Aug. 3, 2023 and Dec. 26, 2025 face a proposed securities class action in U.S. federal court alleging the company and certain executives made misleading statements about the Phase III Orbit study of setrusumab for osteogenesis imperfecta. The suit points to disclosures in July 2025 and December 2025 that the Orbit and Cosmic studies did not meet key statistical endpoints, followed by sharp stock declines, and sets an April 6, 2026 deadline for investors to seek lead-plaintiff status.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Ultragenyx Pharmaceutical Inc. published the original content used to generate this news brief via Newsfile (Ref. ID: 202602252020NEWSFILECNPR____20260225_285099_1) on February 26, 2026, and is solely responsible for the information contained therein.

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