Overview

Basic information

Litigation

Active legal matters

Material Events

8-K disclosures

SEC Filings

Key regulatory docs

Insider Transactions

Ownership changes

Overview

Basic information

Litigation

Active legal matters

Material Events

8-K disclosures

SEC Filings

Key regulatory docs

Insider Transactions

Ownership changes

Ultragenyx Pharmaceutical Inc. (RARE) Class Action Lawsuit (February 2026)

In Litigation

3:26cv1097 • February 4, 2026

Class Period Start

August 3, 2023

Class Period End

December 26, 2025

PSLRA Deadline

April 6, 2026

Case Allegations

10b5

Statutes of Repose

Aug 3, 2026

Country

United States

Court

Federal Court

Docket History

Feb 4, 2026

First Filed Complaint

A securities fraud class action complaint has been filed on behalf of certain investors in Ultragenyx Pharmaceutical Inc..

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