James Hardie faces a lawsuit for allegedly hiding a 12% sales drop in its North America segment, causing a 34% stock plunge after the truth emerged on August 19, 2025.

A securities class action lawsuit has been filed against James Hardie Industries plc (JHX) alleging that the company misled investors from May 20 to August 18, 2025, by failing to disclose declining sales in its North America Fiber Cement segment due to customer destocking. On August 19, 2025, the company revealed a 12% sales drop, causing its share price to fall over 34% in two days. The lawsuit, filed in the Northern District of Illinois, claims executives violated federal securities laws by falsely portraying strong demand amid inventory overstock. Investors who suffered losses may apply to serve as lead plaintiff by December 23, 2025, with no out-of-pocket costs.