Arq, Inc. $ARQ

By Microcap Ledger desk · CIK 0001515156

Facts as of Oct 11, 2026, 08:10 AM UTC. Built from SEC filings and our own data. Small caps move fast; check the latest filings.

Snapshot

Exchange: Nasdaq Global Market
Sector: Miscellaneous Chemical Products
Headquarters: Greenwood Village, CO
Fiscal year end: December 31
Shares outstanding: 43,668,483 [10-Q 2026-08-10]
as of 2026-08-06

Sources: [10-K 2026-03-10]

What the company doesAI summary of filing

Arq, Inc. is an environmental technology company that manufactures and sells activated carbon and chemical-based treatment solutions for removing air, water, and soil contaminants including mercury and PFAS. The company sells powdered and granular activated carbon products primarily to coal-fired power generation, industrial, water treatment, and remediation markets, and generates revenue from product sales and royalty arrangements. The company operates lignite and bituminous coal mining operations to supply raw materials for its manufacturing facilities in Louisiana and Kentucky, and is currently revenue-generating from its core activated carbon products while its new granular activated carbon facility has paused production pending engineering modifications. [10-K 2026-03-10]

Segments: Powdered Activated Carbon (PAC), Granular Activated Carbon (GAC), Corbin Wetcake, M-Prove products

Financial health

From XBRL company facts (USD)
Period	Revenue	Net income	Operating cash flow	Cash	Filing
6 months to Jun 2026	$58.94M	−$1.87M	−$2.66M	$906.0K	[10-Q 2026-08-10]
FY ended Dec 2025	$120.34M	−$52.61M	−$2.73M	$6.57M	[10-K 2026-03-10]
FY ended Dec 2024	$108.96M	−$5.11M	$10.48M	$13.52M	[10-K 2026-03-10]

Quarterly cash burn: −$1.33M
Cash runway Estimate: ~2 months

Capital structure and dilution

Summary only. How these instruments work: Dilution & financing desk.

Share count
Date	Shares outstanding	Filing
2024-11-05	42,032,086	[10-Q 2024-11-07]
2025-03-03	42,014,263	[10-K 2025-03-05]
2025-05-05	42,211,120	[10-Q 2025-05-07]
2025-08-07	42,691,241	[10-Q 2025-08-11]
2025-11-03	42,693,884	[10-Q 2025-11-05]
2026-03-05	42,849,251	[10-K 2026-03-10]
2026-05-04	42,926,258	[10-Q 2026-05-06]
2026-08-06	43,668,483	[10-Q 2026-08-10]

Shelf registration: S-3 filed 2024-08-23; declared effective 2024-09-04 [S-3 2024-08-23]

Listing status

Current status: No Form 8-K Item 3.01 (listing notice) filings in the last 24 months, as of 2026-10-11.

More on deficiency notices and uplistings: Listing status desk.

Who owns it

Recent Form 4 transactions
Date	Insider	Type	Shares	Price	Filing
2026-09-08	Steinmetz Shimon	buy	1,098	$2.34	[4 2026-09-10]
2026-09-08	Steinmetz Shimon	buy	1,874	$2.34	[4 2026-09-10]
2026-09-04	Steinmetz Shimon	buy	1,402	$2.29	[4 2026-09-09]
2026-09-04	Steinmetz Shimon	buy	4,356	$2.27	[4 2026-09-09]
2026-09-03	Steinmetz Shimon	buy	7,500	$2.22	[4 2026-09-08]
2026-09-03	Steinmetz Shimon	buy	8,770	$2.23	[4 2026-09-08]
2026-09-01	Owino Peter Oluoch	grant	100,000	—	[4 2026-09-03]
2026-09-01	Owino Peter Oluoch	grant	61,047	—	[4 2026-09-03]
2026-08-14	Wong Joseph M	grant	55,000	—	[4 2026-08-18]
2026-08-01	Steinmetz Shimon	grant	93,023	—	[4 2026-08-04]
2026-08-01	Smith Claiborne Benson	grant	61,047	—	[4 2026-08-04]
2026-08-01	Wong Joseph M	grant	61,047	—	[4 2026-08-04]

Catalysts and calendar

Recent filings and releases
Date	Type	Title
2026-08-28	8-K	Director or officer change; Other events
2026-08-10	8-K	Results of operations
2026-08-10	10-Q	Quarterly report
2026-07-23	8-K	Director or officer change
2026-07-02	8-K	Director or officer change
2026-06-18	8-K	Director or officer change
2026-06-11	8-K	Director or officer change; Shareholder vote results
2026-05-27	8-K	Director or officer change; Other events
2026-05-06	8-K	Results of operations
2026-05-06	10-Q	Quarterly report
2026-05-01	8-K	Director or officer change
2026-04-28	DEF 14A	Proxy statement

Facts as of Oct 11, 2026, 08:10 AM UTC. Small caps move fast; check the latest filings.