---
schema_version: "secwatch.filing_event.v1"
accession: "0001515156-24-000024"
form_type: "8-K"
ticker: "ARQ"
cik: "0001515156"
company_name: "Arq, Inc."
filed_at: "2024-01-31T23:59:59+00:00"
generated_at: "2026-06-06T13:23:09.200209+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Advanced Emissions Solutions rebrands to Arq, Inc.; begins trading under ARQ ticker on Feb 1, 2024

## Summary
- Filed amendment to certificate of incorporation to change name to Arq, Inc., effective Feb 1, 2024.
- Common stock ticker changes from ADES to ARQ at market open on Feb 1, 2024.
- CEO Bob Rasmus will ring Nasdaq opening bell on Feb 1, 2024 to celebrate rebrand.
- Rebrand reflects transformation to a leading supplier of activated carbon and purification solutions.

## SEC filing metadata
- accession: 0001515156-24-000024
- form_type: 8-K
- ticker: ARQ
- cik: 0001515156
- company_name: Arq, Inc.
- filed_at: 2024-01-31T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1515156/000151515624000024/0001515156-24-000024-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1515156/000151515624000024/ades-20240131.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001515156-24-000024
- JSON: https://secwatch.observer/filing/0001515156-24-000024.json
- Plain text: https://secwatch.observer/filing/0001515156-24-000024.txt

## Key facts
- Governance Changes
  Arq, Inc.: Amended certificate of incorporation to change company name from Advanced Emissions Solutions, Inc. to Arq, Inc (effective 2024-02-01).
  - Change: charter amendment
  - Effective: 2024-02-01
  source text: On January 31, 2024, Advanced Emissions Solutions, Inc. (the "Company") filed an amendment (the "Amendment") to its Second Amended and Restated Certificate of Incorporation to change the Company’s name to "Arq, Inc." (the "Name Change"), to be effective February 1, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1515156/000151515624000024/0001515156-24-000024-index.htm
- Governance Changes
  Arq, Inc.: Amended and restated bylaws solely to update company name to Arq, Inc (effective 2024-02-01).
  - Change: bylaw amendment
  - Effective: 2024-02-01
  source text: The Company also amended and restated its Bylaws solely to update the Company’s name to Arq, Inc., to be effective February 1, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1515156/000151515624000024/0001515156-24-000024-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.