Arq, Inc.

Arq (NASDAQ: ARQ) is a diversified, environmental technology company with products that enable a cleaner and safer planet while actively reducing our environmental impact. As the only vertically integrated producer of activated carbon products in North America, we deliver a reliable domestic supply of innovative, hard-to-source, high-demand products. We apply our extensive expertise to develop groundbreaking solutions to remove harmful chemicals and pollutants from water, land and air. Learn more at: www.arq.com.

Current securities

1. S-8 filingSep 17, 2026
2. 4 filingSep 3, 2026
3. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · Other EventsAug 28, 2026
4. Results of Operations and Financial ConditionAug 10, 2026
5. 10-Q filingAug 10, 2026