Arq, Inc. (ARQ)
NASDAQ: ARQ · Real-Time Price · USD
2.270
-0.010 (-0.44%)
At close: Apr 28, 2026, 4:00 PM EDT
2.270
0.00 (0.00%)
After-hours: Apr 28, 2026, 4:00 PM EDT

Company Description

Arq, Inc., an environmental technology company, engages in the sale of consumable air, water, and soil treatment solutions based on activated carbon in the United States and Canada.

Its products include granular activated carbon, powdered activated carbon, and colloidal carbon products; and additives for air emissions control.

The company’s products are used in various applications, including water treatment, ground water remediation, soil sediments, air emissions, and asphalt additives.

The company was formerly known as Advanced Emissions Solutions, Inc. and changed its name to Arq, Inc. in February 2024.

Arq, Inc. was founded in 1997 and is headquartered in Greenwood Village, Colorado.

Arq, Inc.
Arq, Inc. logo
Country United States
Founded 1996
Industry Pollution & Treatment Controls
Sector Industrials
Employees 202
CEO Robert Rasmus

Contact Details

Address:
8051 East Maplewood Avenue, Suite 210
Greenwood Village, Colorado 80111
United States
Phone 720 598 3500
Website arq.com

Stock Details

Ticker Symbol ARQ
Exchange NASDAQ
Stock Type Common Stock
Fiscal Year January - December
Reporting Currency USD
CIK Code 0001515156
ISIN Number US00770C1018
Employer ID 27-5472457
SIC Code 2890

Key Executives

Name Position
Robert E. Rasmus Chief Executive Officer, President and Director
Dr. Joseph M. Wong Ph.D. Chief Technology Officer
Anthony Nathan Senior Vice President of Finance
Eric Robinson Senior Vice President of Operations
Stacia Hansen Chief Accounting Officer and Principal Financial Officer
Clay Smith General Counsel and Secretary
Jeanette McQueeney Senior Vice President of Sales and Marketing
Lorraine Lang Senior Vice President of Human Resources

Latest SEC Filings

Date Type Title
Apr 27, 2026 SCHEDULE 13G/A Filing
Apr 17, 2026 8-A12B/A Filing
Apr 17, 2026 PRE 14A Other preliminary proxy statements
Apr 17, 2026 8-K Current Report
Apr 1, 2026 8-K Current Report
Mar 12, 2026 SCHEDULE 13G Filing
Mar 10, 2026 10-K Annual Report
Mar 10, 2026 8-K Current Report
Mar 3, 2026 8-K Current Report
Jan 29, 2026 8-K Current Report