Alto Neuroscience(US:ANRO) Prnewswireยท2025-07-31 01:19Core Viewpoint - A class action lawsuit has been filed against Alto Neuroscience, Inc. for allegedly misleading investors regarding the effectiveness of its drug candidate ALTO-100 during its IPO and subsequent period [1][2]. Company Overview - Alto Neuroscience, Inc. is a clinical-stage biopharmaceutical company based in the U.S. with a product pipeline that includes ALTO-100, which was in a Phase 2b clinical trial for treating major depressive disorder (MDD) at the time of its IPO [1]. Allegations - The lawsuit claims that the Offering Documents related to the IPO were negligently prepared and that the company failed to disclose critical information about ALTO-100's effectiveness, overstating its clinical, regulatory, and commercial prospects [2]. - Specifically, it is alleged that ALTO-100 was less effective in treating MDD than represented, leading to an overestimation of Alto's business and financial prospects [2]. Stock Performance - Following the announcement on October 22, 2024, that ALTO-100 did not meet its primary endpoint in the Phase 2b trial, Alto's stock price plummeted by $10.17 per share, a decrease of 69.99%, closing at $4.36 per share on October 23, 2024 [3]. Legal Proceedings - Shareholders interested in participating in the class action have until September 19, 2025, to seek lead plaintiff status, which allows them to represent other class members in the litigation [4].