<SEC-DOCUMENT>0001515156-25-000050-index.html : 20250421 <SEC-HEADER>0001515156-25-000050.hdr.sgml : 20250421 <ACCEPTANCE-DATETIME>20250421163330 ACCESSION NUMBER: 0001515156-25-000050 CONFORMED SUBMISSION TYPE: DEFA14A PUBLIC DOCUMENT COUNT: 3 FILED AS OF DATE: 20250421 DATE AS OF CHANGE: 20250421 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Arq, Inc. CENTRAL INDEX KEY: 0001515156 STANDARD INDUSTRIAL CLASSIFICATION: MISCELLANEOUS CHEMICAL PRODUCTS [2890] ORGANIZATION NAME: 08 Industrial Applications and Services EIN: 275472457 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: DEFA14A SEC ACT: 1934 Act SEC FILE NUMBER: 001-37822 FILM NUMBER: 25853764 BUSINESS ADDRESS: STREET 1: 8051 E. MAPLEWOOD AVE., STE 210 CITY: GREENWOOD VILLAGE STATE: CO ZIP: 80111 BUSINESS PHONE: 720-598-3500 MAIL ADDRESS: STREET 1: 8051 E. MAPLEWOOD AVE., STE 210 CITY: GREENWOOD VILLAGE STATE: CO ZIP: 80111 FORMER COMPANY: FORMER CONFORMED NAME: Advanced Emissions Solutions, Inc. DATE OF NAME CHANGE: 20110311 </SEC-HEADER> <DOCUMENT> <TYPE>DEFA14A <SEQUENCE>1 <FILENAME>arq-2025scheduledefa14axnoa.htm <DESCRIPTION>DEFA14A <TEXT> Document 1 - file: arq-2025scheduledefa14axnoa.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>arqinc_vxnaxp27294xp2703001.jpg <TEXT> Document 2 - file: arqinc_vxnaxp27294xp2703001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>arqinc_vxnaxp27294xp2703002.jpg <TEXT> Document 3 - file: arqinc_vxnaxp27294xp2703002.jpg
</DOCUMENT> </SEC-DOCUMENT>