Quanex Building Products (US:NX) Globenewswireยท2025-09-22 19:45Core Viewpoint - A class action lawsuit has been filed against Quanex Building Products Corporation for failing to disclose significant operational issues related to its Tyman acquisition, which has led to a substantial decline in stock price following the revelation of these issues [1][2][3]. Group 1: Allegations and Issues - The lawsuit alleges that Quanex's maintenance procedures and policies at its Tyman Mexico facility were significantly underinvested, leading to degraded tooling and equipment conditions [2]. - It is claimed that the company was likely to incur significant costs due to these operational issues, which would delay the expected benefits from the Tyman integration [2]. - The complaint states that Quanex had previously identified these issues but failed to disclose them, resulting in misleading positive statements about the company's business and prospects [2]. Group 2: Stock Price Impact - Following the revelation of the operational issues, Quanex's stock price fell by $2.73, or 13.1%, closing at $18.18 per share on September 5, 2025 [3]. - The stock continued to decline, dropping an additional $1.98, or 10.9%, to close at $16.20 per share on September 8, 2025 [3].