---
schema_version: "secwatch.filing_event.v1"
accession: "0001515156-26-000069"
form_type: "8-K"
ticker: "ARQ"
cik: "0001515156"
company_name: "Arq, Inc."
filed_at: "2026-05-27T20:32:10+00:00"
generated_at: "2026-05-27T20:34:49.217608+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Arq appoints Shimon Steinmetz as CFO, CAO Stacia Hansen resigns

## Summary
- Shimon Steinmetz appointed EVP & CFO effective on or before July 27, 2026.
- Steinmetz receives $500K base salary, 50% target bonus, 80% LTI target; plus 250K RSAs and 150K PSUs with stock price hurdles ($8, $10, $15 VWAP).
- Stacia Hansen resigns as Chief Accounting Officer and Treasurer, effective June 12, 2026; no disagreement cited.
- Steinmetz has over 20 years experience, prior CFO at Finjan Holdings and Vesta, and stints at Alvarez & Marsal and investment banking.

## SEC filing metadata
- accession: 0001515156-26-000069
- form_type: 8-K
- ticker: ARQ
- cik: 0001515156
- company_name: Arq, Inc.
- filed_at: 2026-05-27T20:32:10+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1515156/000151515626000069/0001515156-26-000069-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1515156/000151515626000069/ades-20260520.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001515156-26-000069
- JSON: https://secwatch.observer/filing/0001515156-26-000069.json
- Plain text: https://secwatch.observer/filing/0001515156-26-000069.txt

## Source-grounded claims
- claim_id: 4fcc1c4fb6
  claim: Stacia Hansen resigned as Chief Accounting Officer and Treasurer at Arq, Inc..
  evidence_excerpt: On May 20, 2026, Stacia Hansen, the Chief Accounting Officer and Treasurer of the Company, submitted her resignation and the Board accepted such resignation. The effective date of Ms. Hansen's resignation as Chief Accounting Officer is expected to be June 12, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1515156/000151515626000069/0001515156-26-000069-index.htm
- claim_id: 5eef8f91e6
  claim: Shimon Steinmetz was appointed as Executive Vice President and Chief Financial Officer at Arq, Inc..
  evidence_excerpt: On May 26, 2026, the Board of Directors (the “Board”) of Arq, Inc. (the “Company”) appointed Shimon Steinmetz, 48, as the Company’s Executive Vice President and Chief Financial Officer, effective as of his commencement date which will be on or prior to July 27, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1515156/000151515626000069/0001515156-26-000069-index.htm

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