Pomerantz Law Firm Takes Action for Investors of Arq, Inc. as Stock Plummets

Investor Alert: Pomerantz Law Firm Investigates on Behalf of Arq, Inc. Investors

Pomerantz LLP, a respected firm specializing in securities class litigation, has initiated an investigation concerning claims on behalf of investors of Arq, Inc. (NASDAQ: ARQ). This follows alarming developments regarding the company's latest financial reports and management decisions that have raised concerns over potential securities fraud and unlawful business practices.

On March 9, 2026, Arq announced its fourth quarter and full year 2025 results, which sparked significant alarm among its investors. The report disclosed a GAAP loss per share of $1.20, which starkly missed analyst expectations by a substantial margin of $1.14. The news was compounded by the company's 2026 revenue guidance predicting figures between $120 million and $125 million—well short of the investor consensus estimate of $136.9 million.

Arq’s Chief Executive Officer further heightened concerns when, during an earnings call held a day later, he revealed that the company decided to stall its granular activated carbon production project. This decision was made to undertake a thorough engineering and production optimization process, leaving unresolved questions regarding its timeline for completion.

Investors reacted swiftly to the disappointing disclosures, resulting in a substantial decline in Arq's stock price. On March 10, 2026, the stock price plunged by $1.56, translating to a staggering 48.75% drop, closing at $1.64 per share. The steep decline highlighted investor frustration and uncertainty regarding the company’s future strategies and governance.

Pomerantz LLP, with offices in key financial centers including New York, Chicago, Los Angeles, London, Paris, and Tel Aviv, is recognized as a leading firm addressing corporate, securities, and antitrust class actions. Founded by Abraham L. Pomerantz, often referred to as the “dean of the class action bar,