Arq, Inc.

Listed Company

ARQCIK 0001515156NasdaqAcceleratedSmaller ReportingMiscellaneous Chemical ProductsFY ends Dec 31

Period

FY 2025

Revenue

—

Net Income

$-52.61M

Total Assets

$230.58M

Equity

$167.96M

Shares Out

42.93M

Op. Cash Flow

$-2.73M

ARQ$2.07−65.00% · past yearDBEQ Basic

Daily closing prices

Business

Arq, Inc. is an environmental technology company that manufactures and sells activated carbon and other chemical consumables for air, water, and soil treatment applications. The company produces powdered and granular activated carbon from lignite coal sourced from its owned Five Forks Mine in Louisiana, and bituminous coal reserves from its Corbin Facility in Kentucky. Its primary markets include coal-fired power generation, municipal water treatment, industrial wastewater treatment, and groundwater remediation, with demand driven by mercury and PFAS regulations.

Summary from 10-K filed 2026-03-10

Financials

Consolidated Statement of Income

Year Ended · In millions, except per-share amounts

Concept	FY 2025 2025-12-31	FY 2024 2024-12-31	FY 2023 2023-12-31	FY 2022 2022-12-31	FY 2021 2021-12-31
Revenue	120	109	99	103	100
Cost of revenue, exclusive of depreciation and amortization	87	70	67	—	—
Selling, general and administrative	23	29	34	—	—
Research and development	7	4	3	—	—
Depreciation, amortization, depletion and accretion	12	9	11	6	8
Impairment of long-lived assets	45	0	—	—	—
Loss on sale of assets	96,000	64,000	−3	—	—
Total operating expenses	86	41	45	115	95
Operating loss	−53	−2	−13	−12	5
Earnings from equity method investment	2	127,000	2	4	69
Interest expense	−2	−3	−3	—	—
Loss on extinguishment of debt	0	−1	0	0	3
Other income	858,000	1	3	155,000	640,000
Total other income (expense)	360,000	−3	1	3	71
Loss before income taxes	−53	−5	−12	−9	76
Income tax expense (benefit)	12,000	−164,000	153,000	209,000	16
Net loss	−53	−5	−12	−9	60
Basic (in dollars per share)	−1.27	−0.14	−0.42	−0.48	3.31
Diluted (in dollars per share)	−1.27	−0.14	−0.42	−0.48	3.27
Basic (in shares)	42	36	29	18	18
Diluted (in shares)	42	36	29	18	18

Consolidated Balance Sheet

As of · In millions, except per-share amounts

Concept	FY 2025 2025-12-31	FY 2024 2024-12-31	FY 2023 2023-12-31	FY 2022 2022-12-31	FY 2021 2021-12-31
Cash	7	14	45	66	79
Receivables, net	15	15	16	14	13
Inventories, net	16	19	20	18	8
Prepaid expenses and other current assets	6	5	5	8	7
Total current assets	44	52	86	106	108
Restricted cash, long-term	8	9	9	10	10
Property, plant and equipment, net of accumulated depreciation of $28,375 and $26,619, respectively	143	179	95	35	30
Other long-term assets, net	35	45	46	31	37
Total Assets	231	284	236	181	185
Accounts payable and accrued expenses	15	21	15	16	16
Revolving credit facility	19	14	0	—	—
Current portion of long-term debt obligations	1	2	3	1	1
Other current liabilities	7	8	6	7	5
Total current liabilities	42	45	23	24	23
Long-term debt obligations, net of current portion	8	9	18	3	—
Other long-term liabilities	12	13	16	14	12
Total Liabilities	63	67	57	41	38
Commitments and contingencies (Note 8)	—	—	—	—	—
Preferred stock: par value of $0.001 per share, 50,000,000 shares authorized, none issued or outstanding	0	0	0	0	0
Common stock: par value of $0.001 per share, 100,000,000 shares authorized, 47,348,394 and 46,639,930 shares issued, and 42,730,248 and 42,021,784 shares outstanding at December 31, 2025 and 2024, respectively	47,000	47,000	38,000	24,000	23,000
Treasury stock, at cost: 4,618,146 and 4,618,146 shares as of December 31, 2025 and 2024, respectively	−48	−48	−48	−48	—
Additional paid-in capital	202	198	155	104	102
Retained earnings	14	66	72	84	93
Total Stockholders Equity	168	217	178	140	147
Total Liabilities and Stockholders Equity	231	284	236	181	185

Consolidated Statement of Cash Flows

Year Ended · In millions, except per-share amounts

Concept	FY 2025 2025-12-31	FY 2024 2024-12-31	FY 2023 2023-12-31	FY 2022 2022-12-31	FY 2021 2021-12-31
Depreciation, amortization, depletion and accretion	12	9	11	6	8
Stock-based compensation expense	3	3	3	2	2
Operating lease expense	2	2	3	3	2
Amortization of debt discount and debt issuance costs	359,000	601,000	546,000	0	945,000
Other non-cash items, net	−678,000	37,000	−75,000	530,000	−209,000
Receivables	−104,000	1	—	—	—
Prepaid expenses and other assets	−2	1	5	−876,000	−2
Inventories	3	2	−3	−10	1
Other long-term assets, net	−4	−2	−5	245,000	−4
Accounts payable and accrued expenses	−7	216,000	−12	−911,000	5
Other current liabilities	−260,000	1	−184,000	1	−8
Operating lease liabilities	205,000	−1	—	—	—
Other long-term liabilities	−481,000	−2	764,000	−6,000	−3
Net cash (used in) provided by operating activities	−3	10	−17	−6	26
Acquisition of property, plant, equipment and intangible assets, net	−9	−85	−28	−9	−6
Acquisition of mine development costs	−531,000	−181,000	−3	—	—
Proceeds from insurance recovery related to property and equipment	685,000	0	—	—	—
Distributions from equity method investee in excess of cumulative earnings	251,000	127,000	2	4	51
Proceeds from sale of property and equipment	10,000	150,000	0	1	—
Net cash used in investing activities	−8	−85	−29	−5	44
Borrowings on revolving credit facility	129	14	—	—	—
Repayments of revolving credit facility	−124	0	—	—	—
Principal payments on notes payable	−914,000	−11	−473,000	0	—
Principal payments on finance lease obligations	−447,000	−1	−1	−1	−1
Repurchase of common stock to satisfy tax withholdings	−66,000	−1	−230,000	−388,000	−246,000
Net proceeds from common stock issued in private placement transactions	0	15	15	—	—
Payment of debt issuance costs	0	−633,000	0	—	—
Payment of debt extinguishment costs	0	−220,000	0	—	—
Net cash provided by financing activities	4	43	23	−2	−18
Decrease in Cash and Restricted Cash	−7	−32	−22	−12	53
Cash paid for interest	661,000	2	2	334,000	524,000
Cash received for income taxes	−27,000	−100,000	−2	—	—
Change in accrued purchases for property and equipment	949,000	6	914,000	532,000	183,000
Purchase of property and equipment through note payable	0	1	0	—	—

Filings

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Frequently asked questions

What is Arq, Inc.'s CIK number?

Arq, Inc.'s SEC CIK number is 0001515156 (1515156). The CIK (Central Index Key) is the permanent identifier the SEC assigns to every EDGAR filer — unlike a ticker symbol, it never changes.

Where can I find Arq, Inc.'s SEC filings?

All of Arq, Inc.'s EDGAR filings — 10-K annual reports, 10-Q quarterly reports, 8-K material events, and insider transactions — are listed on this page, sourced live from SEC EDGAR.

When did Arq, Inc. last report earnings?

Arq, Inc. (ARQ) most recently filed an earnings 8-K with the SEC on May 6, 2026, furnishing its results under Item 2.02 (Results of Operations and Financial Condition). The earnings press release is attached to that filing (accession 0001515156-26-000064). This is Arq, Inc.'s most recent earnings filing of record — not a forecast of its next earnings date.

What is Arq, Inc.'s most recent earnings 8-K?

Arq, Inc.'s latest earnings 8-K (Item 2.02) was filed May 6, 2026 under accession 0001515156-26-000064. It carries the quarterly or annual earnings press release — the earliest official, SEC-filed version of the results.

View Arq, Inc.'s latest earnings 8-K →
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