Arq(US:ARQ) Globenewswire·2026-03-21 00:00Core Viewpoint - The law firm Kirby McInerney LLP is investigating Arq, Inc. for potential violations of federal securities laws or unlawful business practices by the company or its senior management [1]. Group 1: Company Actions - On March 9, 2026, Arq announced a decision to pause GAC production to conduct a comprehensive review of its engineering and production processes, resulting in no expected GAC production for fiscal year 2026 [3]. - Following this announcement, Arq's share price fell by $1.56, or approximately 48.8%, from $3.20 on March 9, 2026, to close at $1.64 on March 10, 2026 [3]. Group 2: Investigation Details - Currently, no lawsuit has been filed against Arq, but the investigation is ongoing to assess whether claims can be made under federal securities laws [4]. - Investors who purchased or acquired Arq securities and have information related to the investigation are encouraged to contact Kirby McInerney LLP for further discussion [4].