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Arq, Inc.

Securities Class Action

  • Date:
  • 3/20/2026
  • Company Name:
  • Arq, Inc.
  • Stock Symbol:
  • ARQ
  • Status:
  • Investigating

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Bragar Eagel & Squire, P.C., a nationally recognized stockholder rights law firm, is investigating potential claims against Arq, Inc. (“Arq” or the “Company”) (NASDAQ:ARQ) on behalf of Arq stockholders. Our investigation concerns whether Arq has violated the federal securities laws and/or engaged in other unlawful business practices.On March 9, 2026, Arq issued a press release reporting its fourth quarter and full year 2025 results. Among other items, Arq reported a GAAP loss per share of $1.20, missing analyst estimates by $1.14. Arq also issued 2026 revenue guidance in the range of $120 million - $125 million, well below the $136.9 million consensus estimate. On March 10, 2026, during a related earnings call, Arq's Chief Executive Officer said that the Company had decided "to pause our GAC [granular activated carbon] production project to conduct a comprehensive engineering and production process optimization review of the best path forward" and did "not have a firm timeline for completion." 

Following these disclosures, Arq's stock price fell $1.56 per share, or 48.75%, to close at $1.64 per share on March 10, 2026.

If you purchased or otherwise acquired Arq shares and suffered a loss, are a long-term stockholder, have information, would like to learn more about these claims, or have any questions concerning this announcement or your rights or interests with respect to these matters, please contact Brandon Walker or Melissa Fortunato by email at investigations@bespc.com, by telephone at (212) 355-4648, or by filling out the form below.  There is no cost or obligation to you.
Contact Instructions
Please contact Brandon Walker or Melissa Fortunato by email at investigations@bespc.com with any questions.
The individual or institution below (“Plaintiff”) has reviewed and agrees to the Bragar Eagel & Squire, P.C. (“BESPC”) retainer agreement and authorizes BESPC to prosecute an action on Plaintiff’s behalf under the federal securities laws or applicable state laws to recover damages on behalf of investors in Arq. BESPC will prosecute the action on a full contingency basis and will forward all costs and expenses.
 

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