Updated
Arq IncARQ · Industrials
$2.53+5.42%
Market cap$112M
IndustryPollution & Treatment Controls

Arq Inc (ARQ) Stock

What Arq Inc's price implies, from its SEC filings.

Key numbers

P/E (trailing)
—
P/E (forward)
286.0x
Price / free cash flow
80.3x
EV / EBITDA
—
Revenue growth
+7.3%
Operating margin
-38.3%
Dividend yield
—
Debt / equity
0.16x

What Arq Inc's price implies

Arq Inc's free cash flow was negative in fiscal 2025, so a cash-flow reverse DCF doesn't give a meaningful answer. The Modeling tab works from revenue and margins instead.

Revenue and free cash flow

Fiscal years, from Arq Inc's 10-K filings.

Arq Inc revenue and free cash flow

FY2016–FY2025
ARQRevenue$120MARQFree cash flow-$11M
Arq Inc revenue and free cash flow-$100M-$50M$0B$50M$100M$150M2016201720182019202020212022202320242025$120M-$11M

Results from SEC filings

All three statements · Quarters, TTM and 20+ years of statements in Investingly

Arq Inc (ARQ) revenue, net income, free cash flow, EPS and operating margin by fiscal year
Fiscal year20212022202320242025
Revenue$100M$103M$99M$109M$120M
Net income$60M-$9M-$12M-$5M-$53M
Free cash flow$20M-$15M-$44M-$75M-$11M
EPS (diluted)$3.27-$0.48-$0.42-$0.14-$1.27
Operating margin4.8%-11.7%-13.4%-1.8%-44.0%

Where the revenue comes from

By regions, fiscal 2025. By year

United States$111M93%
Canada$9M7%

Superinvestors who own ARQ

From each investor's latest 13F filing (what a 13F shows). All 9 holders

InvestorLast quarterValue% of portfolioQuarter
Cliff Asness AQR Capital Management Added $5M0.00%Q2 2026
Chuck Royce Royce Investment Partners Trimmed $3M0.02%Q3 2026
Paul Marshall Marshall Wace Added $2M0.00%Q2 2026
Jim Simons Renaissance Technologies Added $2M0.00%Q2 2026
David Shaw D. E. Shaw & Co. Added $914,1210.00%Q2 2026
Two Sigma Two Sigma Investments Added $642,0310.0%Q2 2026
Acadian Acadian Asset Management Added $284,0000.0%Q3 2026
Man Group Man Group plc New position $150,3330.0%Q2 2026
Steve Cohen Point72 Asset Management New position $146,8340.0%Q2 2026

Arq Inc insider buying

Open-market purchases by executives and directors in the last 12 months, from SEC Form 4 filings (what insider buying tells you). Every purchase

DateInsiderSharesPriceValue
Sep 8, 2026 Steinmetz Shimon Chief Financial Officer 1,874$2.34$4,384
Sep 8, 2026 Steinmetz Shimon Chief Financial Officer 1,098$2.34$2,569
Sep 4, 2026 Steinmetz Shimon Chief Financial Officer 1,402$2.29$3,209
Sep 4, 2026 Steinmetz Shimon Chief Financial Officer 4,356$2.27$9,904
Sep 3, 2026 Steinmetz Shimon Chief Financial Officer 7,500$2.22$16,634
Sep 3, 2026 Steinmetz Shimon Chief Financial Officer 8,770$2.23$19,514
Mar 17, 2026 M Wong Joseph 10,000$1.89$18,900
Mar 16, 2026 Benson Smith Claiborne 1,000$1.92$1,920
Mar 12, 2026 Benson Smith Claiborne 1,000$1.92$1,920
Nov 11, 2025 Campbell-Breeden Richard 28,638$3.54$101,379

Fundamental grade

D

Five factors scored 1 to 9 from ARQ's latest numbers. It describes the business, not whether the stock is a buy.

Valuation6
Profitability1
Growth5
Financial health6
Cash efficiency0

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How Arq Inc compares

Arq Inc's P/FCF is higher than 94% of Industrials companies and 94% of the 2,359 companies with a P/FCF figure.

Arq Inc (ARQ) percentile ranks: share of companies with a lower figure
Higher thanIndustrialsAll stocks
P/FCF94%94%
Revenue growth45%45%
Operating margin7%12%
ROE8%14%

Questions about Arq Inc

Are Arq Inc insiders buying the stock?

10 open-market insider purchases of ARQ in the last 12 months, from SEC Form 4 filings.

Which superinvestors own Arq Inc?

9 of the superinvestors Investingly tracks hold ARQ in their latest 13F, including Cliff Asness, Chuck Royce, Paul Marshall.

Prices and ratios as of Nov 9, 2026; statements from SEC filings. Information only, not investment advice. Superinvestor holdings come from 13F filings, which are filed up to 45 days after each quarter ends.

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