Accessibility StatementSkip Navigation JHX Investors with Losses Encouraged to Contact the Firm SAN FRANCISCO, Sept. 9, 2025 /PRNewswire/ -- On August 20, 2025, James Hardie Industries (NYSE: JHX) shares crashed by 34% after the company disclosed significant issues with its North America business, its largest segment. This sudden and massive decline has prompted an investigation by Hagens Berman into whether the company may have misled investors about its sales practices and the sustainability of its busine ...