Arq formalizes CAO exit with $108K severance deal

Arq, Inc. reported that its previously announced leadership change has been formalized through a Separation Agreement with former Chief Accounting Officer Stacia Hansen.

Rhea-AI Filing Summary

Arq, Inc. reported that its previously announced leadership change has been formalized through a Separation Agreement with former Chief Accounting Officer Stacia Hansen. Ms. Hansen resigned effective June 12, 2026, and the agreement became effective June 30, 2026 after a statutory revocation period.

Under the Separation Agreement, Ms. Hansen will receive a severance payment of $108,333. The agreement also includes customary release of claims and confidentiality provisions. Arq filed the full Separation Agreement as an exhibit for investors and regulators to review.

8-K Event Classification

2 items: 5.02, 9.01

2 items

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

Key Figures

Severance payment: $108,333 Resignation effective date: June 12, 2026 Separation Agreement effective date: June 30, 2026

3 metrics

Severance payment $108,333 Paid to former Chief Accounting Officer under Separation Agreement

Resignation effective date June 12, 2026 Effective date of CAO Stacia Hansen’s resignation

Separation Agreement effective date June 30, 2026 Effective after statutory revocation period

Key Terms

Separation Agreement, severance payment, release of claims, confidentiality provisions, +1 more

5 terms

Separation Agreement financial

"In connection with her resignation, Ms. Hansen entered into a Separation Agreement with the Company"

A separation agreement is a written contract that spells out the financial and legal terms when an employee and a company part ways, such as final pay, severance, continued benefits, confidentiality, and any release of claims. For investors, it matters because these agreements determine immediate costs, potential future liabilities, and whether departing staff are restricted from competing or disclosing information—factors that can affect a company’s cash flow, risk profile, and leadership continuity.

severance payment financial

"Pursuant to the terms of the Separation Agreement, Ms. Hansen will receive severance payment of $108,333."

release of claims financial

"The Separation Agreement includes customary release of claims and confidentiality provisions."

confidentiality provisions financial

"The Separation Agreement includes customary release of claims and confidentiality provisions."

Emerging growth company regulatory

"Emerging growth company"

An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.

FAQ

What executive change did Arq (ARQ) disclose in this 8-K filing?

Arq disclosed that Chief Accounting Officer Stacia Hansen resigned effective June 12, 2026. The company also documented a Separation Agreement with her, detailing severance and standard legal provisions, which became effective on June 30, 2026 after a statutory revocation period.

How much severance is Arq (ARQ) paying to former CAO Stacia Hansen?

Arq agreed to pay Ms. Hansen a severance payment of $108,333. This amount is specified in the Separation Agreement, which also includes standard release of claims and confidentiality terms and is filed as Exhibit 10.1 for reference.

When did the Separation Agreement between Arq and Stacia Hansen become effective?

The Separation Agreement became effective on June 30, 2026. It took effect after the expiration of a statutory revocation period, following Ms. Hansen’s resignation as Chief Accounting Officer, which was effective on June 12, 2026 as previously disclosed by the company.

What legal provisions are included in Arq’s Separation Agreement with Stacia Hansen?

The Separation Agreement includes customary release of claims and confidentiality provisions. These clauses are standard in executive separation arrangements and are intended to resolve employment-related matters. The full agreement is available as Exhibit 10.1 in the filing.

What exhibits did Arq (ARQ) attach related to the separation of its CAO?

Arq attached the full Separation Agreement with Stacia Hansen as Exhibit 10.1. It also included a Cover Page Interactive Data File as Exhibit 104, which embeds the cover information in Inline XBRL format for electronic reporting purposes.

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Accepted by SEC EDGAR 07/02/2026 - 04:33 PM Learn about SEC filing dates

0001515156false00015151562026-06-302026-06-30

U.S. SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): June 30, 2026

ARQ, INC.

(Name of registrant as specified in its charter)

Delaware

001-37822

27-5472457

(State or other jurisdiction of incorporation)

(Commission File Number)

(I.R.S. Employer Identification Number)

8051 E. Maplewood Avenue, Suite 210, Greenwood Village, CO						80111
(Address of principal executive offices)						(Zip Code)

Registrant's telephone number, including area code: (720) 598-3500

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) 

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) 

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) 

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) 

Securities registered pursuant to Section 12(b) of the Act:

Class

Trading Symbol

Name of each exchange on which registered

Common stock, par value $0.001 per share

ARQ

Nasdaq Global Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

			Emerging growth company			☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.						☐

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

As previously disclosed, effective June 12, 2026, Stacia Hansen resigned as Chief Accounting Officer of Arq, Inc. (the “Company”). In connection with her resignation, Ms. Hansen entered into a Separation Agreement with the Company (the “Separation Agreement”). The Separation Agreement became effective as of June 30, 2026 (the “Effective Date”) after the expiration of a statutory revocation period.

Pursuant to the terms of the Separation Agreement, Ms. Hansen will receive severance payment of $108,333. The Separation Agreement includes customary release of claims and confidentiality provisions.

The foregoing description of the Separation Agreement is qualified in its entirety by reference to the full text of the Separation Agreement, attached hereto as Exhibit 10.1, and incorporated herein by reference.

Item 9.01						Financial Statements and Exhibits.
(d)						Exhibits

Exhibit No.						Description
10.1						Separation Agreement by and between Stacia Hansen and Arq, Inc., effective as of June 30, 2026.*
104						Cover Page Interactive Data File (embedded within the Inline XBRL document).

Notes:

* – Management contract or compensatory plan or arrangement.

1

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: July 2, 2026

Arq, Inc.

Registrant

/s/ Robert Rasmus

Robert Rasmus

Chief Executive Officer

2

Filing Exhibits & Attachments

4 documents

Agreements & Contracts

• EX-10.1 EX-10.1 53.4 KB

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT 1.7 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 22.0 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 12.7 KB