8051 E. MAPLEWOOD AVE., STE 210, GREENWOOD VILLAGE, CO
Reports Second Quarter 2026 Results
News, Material Contracts
Stacia Hansen Resigns as Chief Accounting Officer; Separation Agreement Executed
Appointment of Peter Owino as Interim Chief Accounting Officer
Approval of 2026 Omnibus Incentive Plan at Arq, Inc. Annual Meeting
Strengthens Executive Team with Appointment of Shimon Steinmetz as Chief Financial Officer
Reports First Quarter 2026 Results
Executive Departures - Jeremy Williamson and Jay Voncannon Leave Arq, Inc.
Q2
Q1
FY 2025
Q3
FY 2024
Amended Registration of Securities
Prospectus filed pursuant to Rule 424(b)(5)
Effectiveness Notice
Registration Statement for Securities Offered under a Shelf Registration
Registration Statement for Securities to be Offered to Employees
Prospectus filed pursuant to Rule 424(b)(3)
Definitive Proxy Statement
Additional Proxy Materials
PRE 14A
Statement of Changes in Beneficial Ownership
Initial Statement of Beneficial Ownership
Correspondence
Submission Upload
S-8 POS