ARQ Arq, Inc.

CIK 0001515156 50 ready 8-Ks latest May 27, 2026, 4:32 PM ET RSS · JSON

Activity: ELEVATED 3 filings / 30d vs 1 baseline Risk accumulating: repeated leadership change (7)

Ready 8-Ks 50

Latest filing July 2, 2026, 4:33 PM ET

Top materiality 0.85

Event mix other_material ×14 · earnings ×14 · leadership ×10

Sentiment 15 pos · 5 neg · 30 neu

Latest earnings reported 2026-Q1

Executive change recent →

Recent 8-K filings for ARQ

Highest-materiality recent filing

Arq reports record $120M revenue but $52.6M net loss; $45M impairment on Corbin; pauses GAC

March 10, 2026, 7:59 PM ET earnings materiality 0.85 negative item 2.02 item 9.01 ◈ Earnings Releases ×2

FY 2025 revenue $120.3M (+10% YoY); Q4 revenue $29.4M.
FY 2025 net loss $52.6M vs $5.1M loss in FY 2024; non-cash impairment charge of $45M related to Corbin assets.

Read filing →

May 27, 2026, 4:32 PM ET leadership materiality 0.65 neutral item 5.02 item 8.01 item 9.01 ◈ executive_change ×2

Arq appoints Shimon Steinmetz as CFO, CAO Stacia Hansen resigns

Shimon Steinmetz appointed EVP & CFO effective on or before July 27, 2026.
May 6, 2026, 7:59 PM ET earnings materiality 0.60 neutral item 2.02 item 9.01

Arq Q1 revenue up 7% to $29.1M but net loss of $0.8M; reaffirms FY guidance

Revenue $29.1M in Q1 2026 vs $27.2M in Q1 2025; gross margin 34.2% vs 36.4%.
May 1, 2026, 7:59 PM ET leadership materiality 0.60 neutral item 5.02 item 9.01 ◈ executive_change ×2

Arq finalizes separation agreements with former COO and CFO, including cash severance and equity acceleration

COO Williamson receives 12 months' base salary (~$361,500), COBRA lump-sum, accelerated vesting of 34,270 restricted stock and 49,736 PSUs.
March 10, 2026, 7:59 PM ET earnings materiality 0.85 negative item 2.02 item 9.01 ◈ Earnings Releases ×2

Arq reports record $120M revenue but $52.6M net loss; $45M impairment on Corbin; pauses GAC

FY 2025 revenue $120.3M (+10% YoY); Q4 revenue $29.4M.
March 3, 2026, 6:59 PM ET debt materiality 0.60 neutral item 1.01 item 9.01 ◈ Material Agreements

Arq amends credit agreement to lower minimum liquidity covenant through March 2026

Fourth Amendment to revolving credit agreement with MidCap Funding IV Trust, dated Feb 27, 2026.
August 11, 2025, 7:59 PM ET earnings materiality 0.65 positive item 2.02 item 9.01

Arq Q2 revenue up 13% to $28.6M, Adj. EBITDA $3.7M; commissions first GAC line at Red River

Revenue $28.6M (+13% YoY); ASP +9%; gross margin improved to 33.3% from 32.2%.
August 6, 2025, 7:59 PM ET other material materiality 0.75 positive item 8.01 item 9.01

Arq successfully commissions first GAC line at Red River; targeting 25M lbs annual production

First granular activated carbon line commissioned at Red River; initial sales revenue from test shipments.
May 7, 2025, 7:59 PM ET earnings materiality 0.75 positive item 2.02 item 9.01

Arq Q1 2025: revenue $27.2M (+25% YoY), net income $0.2M, CFO appointed

Revenue $27.2M (+25% YoY); ASP up 13% YoY, 8th consecutive double-digit growth.
April 2, 2025, 7:59 PM ET leadership materiality 0.65 positive item 5.02 item 9.01 ◈ executive_change ×2

Arq appoints 35-year finance veteran Jay Voncannon as CFO effective April 2, 2025

Jay Voncannon appointed CFO of Arq effective April 2, 2025.
March 5, 2025, 6:59 PM ET earnings materiality 0.65 positive item 2.02 item 9.01

Arq FY2024: Revenue up 10% to $109M; Adj EBITDA $7.7M vs -$2.6M prior year

FY2024 revenue $109.0M (+10% YoY); Q4 revenue $27.0M; ASP up ~14% YoY in Q4, seventh straight double-digit YoY increase.
February 7, 2025, 6:59 PM ET other material materiality 0.65 neutral item 2.02 item 7.01 item 9.01

Arq GAC project on track for Q1 2025 production; FY24 capex ~$80M; sues design firm for cost overruns

Initial GAC production at Red River remains on track for Q1 2025; full run-rate of 25M lbs targeted for H2 2025.
January 2, 2025, 6:59 PM ET debt materiality 0.65 positive item 1.01 item 1.02 item 2.03 item 7.01 item 9.01

Arq closes $30M revolving credit facility, refinances prior term loan

New $30M asset-based revolver with MidCap Financial; 5-year term, SOFR+4.5% (floor 2.5%).
November 7, 2024, 6:59 PM ET earnings materiality 0.75 positive item 2.02 item 9.01

Arq Q3 revenue $34.8M (+17% YoY), net income $1.6M, raised $27M equity

Revenue $34.8M (+17% YoY); gross margin 38.6% (up 800 bps YoY); ASP up 15% YoY, 6th consecutive double-digit YoY increase.
September 20, 2024, 7:59 PM ET other material materiality 0.70 neutral item 1.01 item 1.02 item 8.01 item 9.01

Arq prices $25M public offering of 4.77M shares at $5.25; terminates Red River construction contract

Priced underwritten offering of 4,770,000 shares at $5.25/share; gross proceeds ~$25M.
August 12, 2024, 7:59 PM ET earnings materiality 0.70 positive item 2.02 item 9.01

Arq Q2 revenue up 24% YoY to $25.4M; Adj. EBITDA turns positive at $0.5M

Revenue $25.4M (+24% YoY); ASP up 16% YoY; gross margin improved to 32% from 25%.
June 13, 2024, 7:59 PM ET other material materiality 0.60 neutral item 5.02 item 5.07 item 9.01

Arq stockholders approve 2024 Omnibus Incentive Plan authorizing up to 2.5M shares

Stockholders approved 2024 Omnibus Incentive Plan at June 10, 2024 annual meeting; authorizes up to 2,500,000 new shares plus any remaining shares under prior plans.
May 16, 2024, 7:59 PM ET other material materiality 0.65 positive item 1.01 item 3.02 item 7.01 item 9.01 ◈ Material Agreements

Arq raises ~$15M in PIPE at $7.00/sh, 5.7% dilution from new investor

Issued 2,142,858 shares at $7.00 each, gross proceeds ~$15M via unsolicited institutional offer.
May 8, 2024, 7:59 PM ET earnings materiality 0.70 positive item 2.02 item 9.01 ◈ Earnings Releases

Arq Q1 revenue up 4% to $21.7M, net loss narrows to $3.4M; secures first GAC contract for 20% capacity

Revenue $21.7M (+4% YoY); ASP up 16% YoY; gross margin 37% vs 17% prior year.
March 12, 2024, 7:59 PM ET earnings materiality 0.75 positive item 2.02 item 9.01 ◈ Earnings Releases

Arq Q4 2023 net income $3.3M, revenue $28.1M (+20% YoY), first profitable quarter since Q4 2021

Q4 revenue $28.1M (+20% YoY) driven by higher prices, mix, and $4.7M take-or-pay; net income $3.3M vs loss a year ago.
January 24, 2024, 6:59 PM ET other material materiality 0.70 positive item 1.01 item 8.01 item 9.01 ◈ Material Agreements

ADES signs GAC expansion contract; cost $45-50M, completion Q4 2024

Contract with Wieland-Davco on cost-plus basis; total construction and equipment cost estimated at $45-50M, up 20% from prior guidance.
November 8, 2023, 6:59 PM ET earnings materiality 0.70 positive item 2.02 item 9.01 ◈ Earnings Releases

ADES Q3 consumables revenue $29.8M (+5% YoY); gross margin improves to 30.6% from 24.1%; Adjusted EBITDA positive $0.9M

Consumables revenue $29.8M (Q3 2023) vs $28.4M (Q3 2022); net loss narrowed to $2.2M from $2.4M.
September 18, 2023, 7:59 PM ET leadership materiality 0.60 neutral item 5.02 item 8.01 item 9.01 ◈ executive_change

ADES appoints Jeremy 'Deke' Williamson as COO effective Sept. 18, 2023

Williamson joins from Hi-Crush, where he was SVP of Production & Distribution Operations.
August 9, 2023, 7:59 PM ET earnings materiality 0.80 negative item 2.02 item 9.01 ◈ Earnings Releases ×2

Advanced Emissions Solutions Q2 net loss widens to $5.9M; revenue down 17% on weaker demand

Q2 consumables revenue $20.4M, down from $24.7M YoY; net loss $5.9M vs $0.3M loss prior year.
August 3, 2023, 7:59 PM ET leadership materiality 0.60 neutral item 5.02 item 9.01 ◈ executive_change

Advanced Emissions Solutions details CEO Greg Marken's severance and advisor agreement

Greg Marken transitioned out as President and CEO effective July 17, 2023, remains employee through Aug 28, 2023.
July 17, 2023, 7:59 PM ET leadership materiality 0.75 neutral item 3.02 item 5.02 item 8.01 item 9.01 ◈ executive_change ×3

ADES appoints Robert Rasmus as CEO; he buys 950k shares and receives equity inducement awards

Rasmus succeeds Greg Marken as President and CEO effective July 17, 2023; Marken to stay through Aug 28.
May 9, 2023, 7:59 PM ET earnings materiality 0.75 negative item 2.02 item 9.01 ◈ Earnings Releases

ADES Q1 revenue $20.8M, net loss $7.5M; completes Arq acquisition

Consumables revenue $20.8M (-21% YoY) due to low natural gas pressuring power generation customers.
March 29, 2023, 7:59 PM ET M&A materiality 0.70 positive item 7.01 item 8.01 item 9.01

ADES closes Marshall Mine sale; pays $2.2M, gains $2.7M, removes $4.9M liability

Company paid $2.2M to Caddo Creek Resources in exchange for assumption of $4.9M asset retirement obligation.
March 8, 2023, 6:59 PM ET earnings materiality 0.70 negative item 2.02 item 9.01 ◈ Earnings Releases

ADES reports full year net loss of $8.9M; consumables revenue up 20% to $103M; expects 2023 revenue ~$106M

Full year net loss $8.9M ($0.48 diluted EPS) vs net income $60.4M ($3.27 EPS) in 2021, driven by Tinuum winddown.
March 2, 2023, 6:59 PM ET M&A materiality 0.75 neutral item 9.01

ADES files Arq Limited financials for acquisition; Arq reports $115.7M net loss in 2021, going concern doubt

Arq 2021 net loss $115.7M, operating loss $116.0M; 2020 net loss $32.8M.
February 1, 2023, 6:59 PM ET M&A materiality 0.80 positive item 1.01 item 3.02 item 1.02 item 2.01 item 2.03 item 5.02 item 5.03 item 7.01 item 9.01 ◈ executive_change ×3◈ Governance Changes◈ M&A Transactions◈ Material Agreements

Advanced Emissions Solutions completes acquisition of Arq Limited subsidiaries in revised deal

ADES issued 3,814,864 common shares and 5,294,462 Series A Preferred shares for 100% of Arq subsidiaries.

Executive changes

Role change (interim)

Bob Rasmus

principal financial officer

ARQ · Arq, Inc.

Effective: 2026-06-14
Successor: Shimon Steinmetz
Filed: June 18, 2026, 4:31 PM ET

Also on June 14, 2026, the Board designated Bob Rasmus, the Company's President, Chief Executive Officer, and current principal executive officer, as the Company's principal financial officer, to serve in that role until Shimon Steinmetz commences his employment as the Company's Chief Financial Officer on or around July 27, 2026, as previously disclosed.

Appointed (interim)

Peter Owino

Interim Chief Accounting Officer

ARQ · Arq, Inc.

Effective: 2026-06-12
Filed: June 18, 2026, 4:31 PM ET

On June 14, 2026, the Board of Directors (the “Board”) of Arq, Inc. (the “Company”) appointed Peter Owino, 51, as the Company’s Interim Chief Accounting Officer, effective as of June 12, 2026.

Appointed

Shimon Steinmetz

Chief Financial Officer

ARQ · Arq, Inc.

Effective: 2026-07-27
Filed: June 18, 2026, 4:31 PM ET

until Shimon Steinmetz commences his employment as the Company's Chief Financial Officer on or around July 27, 2026, as previously disclosed.

Departed

Stacia Hansen

Chief Accounting Officer and Treasurer

ARQ · Arq, Inc.

Effective: 2026-06-12
Filed: May 27, 2026, 4:32 PM ET

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.

Appointed

Shimon Steinmetz

Executive Vice President and Chief Financial Officer

ARQ · Arq, Inc.

Effective: 2026-07-27
Filed: May 27, 2026, 4:32 PM ET

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.

Departed

Jay Voncannon

Chief Financial Officer

ARQ · Arq, Inc.

Effective: 2026-04-18
Filed: May 1, 2026, 7:59 PM ET

Jeremy “Deke” Williamson ceased serving as the Chief Operating Officer and Jay Voncannon ceased serving as Chief Financial Officer of Arq, Inc.

Departed

Jeremy "Deke" Williamson

Chief Operating Officer

ARQ · Arq, Inc.

Effective: 2026-04-18
Filed: May 1, 2026, 7:59 PM ET

Jeremy “Deke” Williamson ceased serving as the Chief Operating Officer and Jay Voncannon ceased serving as Chief Financial Officer of Arq, Inc.

Departed

L. Spencer Wells

Director

ARQ · Arq, Inc.

Effective: 2025-06-03
Filed: June 6, 2025, 7:59 PM ET

As a result of their not standing for reelection at the Annual Meeting, L. Spencer Wells and Gilbert Li no longer serve as members of the Company's Board of Directors (the "Board"), effective immediately following the conclusion of the Annual Meeting.

Departed

Gilbert Li

Director

ARQ · Arq, Inc.

Effective: 2025-06-03
Filed: June 6, 2025, 7:59 PM ET

As a result of their not standing for reelection at the Annual Meeting, L. Spencer Wells and Gilbert Li no longer serve as members of the Company's Board of Directors (the "Board"), effective immediately following the conclusion of the Annual Meeting.

Appointed

Jay L. Voncannon

Chief Financial Officer

ARQ · Arq, Inc.

Effective: 2025-04-02
Filed: April 2, 2025, 7:59 PM ET

On March 31, 2025 and effective April 2, 2025 (the "Effective Date"), the Board of Directors (the “Board”) of Arq, Inc. (the “Company”) appointed Jay L. Voncannon, 59, as the Company’s Chief Financial Officer

Role change

Stacia Hansen

Chief Accounting Officer

ARQ · Arq, Inc.

Effective: 2025-04-02
Successor: Jay L. Voncannon
Filed: April 2, 2025, 7:59 PM ET

Upon Mr. Voncannon's appointment, Stacia Hansen will no longer serve as the Company’s principal financial officer, but will continue to serve as the Company’s Chief Accounting Officer, principal accounting officer, and key leadership positions she assumed in November 2023.

Appointed

Stacia Hansen

Chief Accounting Officer

ARQ · Arq, Inc.

Effective: 2023-11-06
Filed: November 8, 2023, 6:59 PM ET

appointed Stacia Hansen to succeed Morgan Fields as the Company’s Chief Accounting Officer effective November 6, 2023

Earnings & guidance

2026-Q1 EPS reported -$0.02 filing →

Materiality & sentiment trend

Max materiality 0.85 · Median 0.60 · Most common event other_material

15 positive 5 negative 30 neutral

source · ARQ on sec.gov