Holzer & Holzer Investigating Arq, Inc. After Stock Price Drop

Law firm looking into whether company complied with securities laws after announcing pause in GAC production.

Published on Mar. 10, 2026

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Holzer & Holzer, LLC, a securities litigation law firm, has announced an investigation into whether Arq, Inc. (NASDAQ: ARQ) complied with federal securities laws. The investigation comes after Arq announced it would pause GAC production to conduct a review, causing the company's stock price to drop.

Why it matters

Shareholder lawsuits and investigations into potential securities law violations can have significant impacts on a company's finances and reputation. This case highlights the importance of transparency and compliance for publicly traded firms, especially when making major operational decisions that affect investors.

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 does not expect any GAC production in fiscal year 2026. The announcement caused Arq's stock price to drop.

  • On March 9, 2026, Arq announced it would pause GAC production.
  • Arq does not expect any GAC production in fiscal year 2026.

The players

Arq, Inc.

A publicly traded company that announced it would pause GAC production, causing its stock price to drop.

Holzer & Holzer, LLC

A securities litigation law firm that is investigating whether Arq complied with federal securities laws.

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What they’re saying

“If you purchased Arq stock and suffered a loss on that investment, you are encouraged to contact Corey Holzer, Esq. at cholzer@holzerlaw.com or Joshua Karr, Esq. at jkarr@holzerlaw.com, call our toll-free number at (888) 508-6832, or visit our website at www.holzerlaw.com/case/arq/ to discuss your legal rights.”

— Corey Holzer, Attorney, Holzer & Holzer, LLC (Holzer & Holzer, LLC)

What’s next

Holzer & Holzer, LLC will continue its investigation into whether Arq, Inc. complied with federal securities laws. The law firm is encouraging Arq shareholders who suffered losses to contact them to discuss their legal options.

The takeaway

This case highlights the importance of transparency and compliance for publicly traded companies, as shareholder lawsuits and investigations into potential securities law violations can have significant impacts on a firm's finances and reputation.