Kirby McInerney Investigating Potential Securities Fraud at ARQ, Inc.

Law firm looking into claims against the NASDAQ-listed company after it pauses GAC production.

Mar. 19, 2026 at 6:08am

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The law firm of Kirby McInerney LLP has announced an investigation into potential securities fraud claims against ARQ, Inc. (NASDAQ:ARQ). The investigation comes after ARQ announced it would pause production of its GAC product line to conduct a review, causing the company's stock price to fall.

Why it matters

As a publicly traded company, ARQ has an obligation to provide accurate and timely information to investors. The Kirby McInerney investigation suggests there may have been issues with ARQ's disclosures that could constitute securities fraud, which could have significant legal and financial implications for the company.

The details

On March 9, 2026, ARQ announced it would 'pause GAC production to conduct a comprehensive engineering and production process optimization review of the path forward for the Company's GAC business.' As a result, the company said it does not expect any GAC production in fiscal year 2026. This news caused ARQ's stock price to decline.

  • On March 9, 2026, ARQ announced it would pause GAC production.

The players

Kirby McInerney LLP

A New York-based plaintiffs' law firm concentrating in securities, antitrust, whistleblower, and consumer litigation.

ARQ, Inc.

A NASDAQ-listed company that has announced it will pause production of its GAC product line.

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What they’re saying

“The investigation concerns whether the Company and/or members of its senior management may have violated federal securities laws or engaged in other unlawful business practices.”

— Lauren Molinaro, of Kirby McInerney LLP

What’s next

At this stage, no lawsuit has been filed. The investigation is ongoing to determine whether claims may be brought under federal securities laws.

The takeaway

This investigation highlights the importance of public companies providing accurate and transparent information to investors. The outcome could have significant legal and financial implications for ARQ, Inc.