---
schema_version: "secwatch.filing_event.v1"
accession: "0001515156-26-000085"
form_type: "8-K"
ticker: "ARQ"
cik: "0001515156"
company_name: "Arq, Inc."
filed_at: "2026-07-02T20:33:09+00:00"
generated_at: "2026-07-02T20:35:21.833494+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Arq CAO Stacia Hansen resigns; receives $108,333 severance under separation agreement

## Summary
- Stacia Hansen resigned as Chief Accounting Officer effective June 12, 2026.
- Separation agreement provides $108,333 severance (4 months base salary) paid biweekly.
- Agreement includes release of claims, confidentiality, non-disparagement, and return of company property.
- Effective date June 30, 2026 after statutory revocation period expired.

## SEC filing metadata
- accession: 0001515156-26-000085
- form_type: 8-K
- ticker: ARQ
- cik: 0001515156
- company_name: Arq, Inc.
- filed_at: 2026-07-02T20:33:09+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1515156/000151515626000085/0001515156-26-000085-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1515156/000151515626000085/arq-20260630.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001515156-26-000085
- JSON: https://secwatch.observer/filing/0001515156-26-000085.json
- Plain text: https://secwatch.observer/filing/0001515156-26-000085.txt

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