Arq, Inc. (ARQ)

In May 2026, Arq reported a Q1 net loss despite a revenue increase, attributing it to decreased pricing and other costs, while reaffirming its full-year outlook. In April 2026, a securities fraud investigation was announced. In March 2026, the stock plunged after reporting a larger Q4 loss and pausing GAC production due to design flaws, leading to an impairment charge and temporary idling of its Corbin facility. In November 2025, Arq's stock experienced a price drop after reporting a Q3 loss and lagging revenue estimates. From May 2025 to May 2026, the share price declined significantly.

While specific drivers are not explicitly outlined, the CEO indicated that Q2 is expected to be a transitional period with performance broadly in line with prior years. The company anticipates steady annual growth from existing demand drivers, with potential for increased demand driven by EPA regulatory changes, particularly for GAC products.

Arq, Inc. is an environmental technology company focused on air, water, and soil treatment solutions, operating in the Industrials sector. It specializes in activated carbon (AC) products designed to remove contaminants. Its major products include Powdered Activated Carbon (PAC), Granular Activated Carbon (GAC), Colloidal Carbon Products, and Arq Additives. The company is a vertically integrated producer of activated carbon products in North America, utilizing lignite and repurposed bituminous coal waste as feedstocks.

Arq, Inc. is headquartered in Greenwood Village, Colorado, with R&D facilities there. Its Red River AC plant is in Coushatta, Louisiana, and its Corbin facility is in Kentucky. The company serves customers across North America, specifically in the United States and Canada.

Arq, Inc. rebranded in January 2024 from Advanced Emissions Solutions (ADES). However, its reputation has likely been impacted by GAC production challenges, financial performance, and a securities fraud investigation.

Arq, Inc.'s ownership is a mix of institutional, individual, and retail investors. Institutional ownership ranges from approximately 0.05% to 27.5%, with major holders including BlackRock, Inc. and Vanguard Group Inc. Individual investors hold a significant portion, with Julian Alexander McIntyre being the largest individual shareholder. Insiders collectively own a notable percentage of the stock.