The Schall Law Firm, a national shareholder rights litigation firm, announces that it is investigating claims on behalf of investors of Arq, Inc. (“Arq” or “the Company”) (NASDAQ: ARQ) for violations of the securities laws.

The investigation focuses on whether the Company issued false and/or misleading statements and/or failed to disclose information pertinent to investors. Arq announced on March 9, 2026, that it decided to “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.” Shares of Arq fell on this news.

If you are a shareholder who suffered a loss, click here to participate.

We also encourage you to contact Brian Schall of the Schall Law Firm, 2049 Century Park East, Suite 2460, Los Angeles, CA 90067, at 310-301-3335, to discuss your rights free of charge. You can also reach us through the firm's website at www.schallfirm.com, or by email at bschall@schallfirm.com.

The Schall Law Firm represents investors around the world and specializes in securities class action lawsuits and shareholder rights litigation.

This press release may be considered Attorney Advertising in some jurisdictions under the applicable law and rules of ethics.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260317403387/en/