Ultragenyx Pharmaceutical(US:RARE) Globenewswire·2026-02-09 03:06Core Viewpoint - A class action lawsuit has been filed against Ultragenyx Pharmaceutical Inc. for alleged misleading statements regarding the efficacy of setrusumab, impacting investors who purchased stock between August 3, 2023, and December 26, 2025 [1][5]. Group 1: Lawsuit Details - The lawsuit claims that Ultragenyx made false statements about setrusumab's potential, specifically that while it increases bone density, this does not correlate with a decrease in fracture rates, contrary to management's claims [5]. - Investors are encouraged to join the class action without incurring out-of-pocket fees through a contingency fee arrangement [2]. Group 2: Participation Information - Interested investors can join the class action by visiting the provided link or contacting the law firm directly [3][6]. - A lead plaintiff must be appointed by April 6, 2026, to represent the class in the litigation [1][3]. Group 3: Law Firm Credentials - The Rosen Law Firm has a strong track record in securities class actions, having achieved significant settlements, including over $438 million for investors in 2019 [4]. - The firm has been recognized for its success in securities class action settlements, ranking No. 1 in 2017 and consistently in the top 4 since 2013 [4].