Loading
Arq, Inc. Stock: price and insider trades · United States
1 insider bought €48k of shares over the last 90 days, the latest filed 10 Sept 2026.
Arq, Inc.: what insiders have been doing
Arq, Inc. is a Chemicals & Materials company. Its directors and officers file their transactions with SEC (Form 4). Between 18 October 2025 and 18 October 2026, 13 insiders published 33 filings.
Both sides are active: 13 purchases worth €766k and 1 sale worth €32k, from 7 insiders and 1 insider respectively. Taken together, the purchases exceed the sales by €733k. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Campbell-Breeden Richard filed the largest purchase, €287k, on 24 March 2026, which represents 0.35% of the company's market value. Those buying include 4 senior executives, 2 finance chiefs and 1 chief executive.
Across the 5,458 companies tracked on its exchange, the median is 22 filings; at 33 filings, this issuer sits above that mark. Over the whole record (from 2016), the tally stands at 29 purchases and 10 sales. In its latest annual report filed with the SEC (10-K, fiscal year ended 31 December 2025), the company reported revenue of 120.3 m USD and net income of -52.6 m USD.
In all, 5 purchases were made within 30 days of a purchase by another insider of the company. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time. The latest purchase dates back some time: it was published 38 days ago, on 10 September 2026. Typically, a trade is published a median of 3 days after it takes place. For comparison, the SEC allows two business days to file a Form 4.
Elsewhere in the same sector, our signals recently picked up insider purchases at Culp Inc and Gold.com, Inc. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
Insider Decl.
144
Thresholds
n/a
Buy Volume
€9M
29 ops. · all time
Sell Volume
€752,023
10 ops. · all time
Who traded when
BuySaleShimon Steinmetz6 buys
Robert E. Rasmus5 buys
Joseph M. Wong2 buys2 sales
Claiborne Benson Smith1 buy2 sales
Jeremy Williamson1 buy2 sales
Richard Campbell-Breeden3 buys
+4 other insiders
Since the insiders bought
- -18.6%Entry US$2.20 · Close 16 Oct 2026 US$1.79
- -1.6%Entry US$2.50 · Close at T+90 US$2.46
- +42.7%Entry US$1.99 · Close at T+90 US$2.84
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Fundamental score
Ranked 23,286 of 24,148 companies
13.5
score / 100
Value9
Quality18
FCF yld-14%
Earn yld-65%
EV/EBITDA·
ROE-27%
Gross mgn28%
Net mgn-44%
Debt/EBITDA·
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
US$1.86
Analyst consensus
4 analysts1.00/5
US$3.10Target US$4.03(+117%)US$6.00
Income statement
RevenueUS$120.3M
Gross profitUS$33.5M28% margin
EBITDA-US$38.4M-32% margin
Net income-US$52.6M-42.2% margin
Valuation
PER (forward)46.4x
P/Book0.5x
Beta2.87
Balance sheet & cash
Market capUS$81M
Total debtUS$37.4M
Free Cash Flow-US$11.3M
Debt / Equity23%
Profitability & ownership
ROE-27.1%
ROA-1.9%
% insiders26.0%
% institutions36.6%
Last declaration on 10 September 2026
Declarations144 total
1,098 shares@ US$2.33960.0029% mcap4.6% of flowCommon StockSEC:0001515156-26-000129:0
Canonical exit: 7 Dec 2026 (T+90)
1,874 shares@ US$2.33930.0049% mcap7.8% of flowCommon StockSEC:0001515156-26-000129:1
Canonical exit: 7 Dec 2026 (T+90)
1,402 shares@ US$2.28890.0036% mcap5.7% of flowCommon StockSEC:0001515156-26-000127:0
Canonical exit: 3 Dec 2026 (T+90)
4,356 shares@ US$2.27370.011% mcap17.6% of flowCommon StockSEC:0001515156-26-000127:1
Canonical exit: 3 Dec 2026 (T+90)
7,500 shares@ US$2.21780.019% mcap29.6% of flowCommon StockSEC:0001515156-26-000125:0
Canonical exit: 2 Dec 2026 (T+90)
8,770 shares@ US$2.22510.022% mcap34.7% of flowCommon StockSEC:0001515156-26-000125:1
Canonical exit: 2 Dec 2026 (T+90)
100,000 shares0Common StockSEC:0001515156-26-000123:0
61,047 shares0Common StockSEC:0001515156-26-000123:1
55,000 shares0Common StockSEC:0001515156-26-000118:0
250,000 shares0Common StockSEC:0001515156-26-000108:0
61,047 shares0Common StockSEC:0001515156-26-000106:0
61,047 shares0Common StockSEC:0001515156-26-000107:0
93,023 shares0Common StockSEC:0001515156-26-000108:1
24,641 shares0Common StockSEC:0001515156-26-000092:0
49,283 shares0Common StockSEC:0001515156-26-000090:0
49,283 shares0Common StockSEC:0001515156-26-000091:0
49,283 shares0Common StockSEC:0001515156-26-000093:0
24,641 shares0Common StockSEC:0001515156-26-000094:0
16,709 shares@ US$2.270.040% mcap52.7% of flowCommon StockSEC:0001515156-26-000066:0
10,085 shares@ US$2.2710.6% of flowCommon StockSEC:0001515156-26-000038:0
8,894 shares@ US$2.2723.9% of flowCommon StockSEC:0001515156-26-000036:0
845 shares@ US$2.270.4% of flowCommon StockSEC:0001515156-26-000035:0
8,025 shares@ US$2.2730.6% of flowCommon StockSEC:0001515156-26-000037:0
150,000 shares@ US$2.21110.35% mcap44.3% of flowCommon StockSEC:0001515156-26-000030:0
Canonical exit: 21 Jun 2026 (T+90)
10,000 shares@ US$1.898.8% of flowCommon StockSEC:0001515156-26-000028:0
Canonical exit: 15 Jun 2026 (T+90)
25 of 144 declarations
About Arq, Inc.
Arq, Inc. (NASDAQ: ARQ) is a United States–listed environmental technology and carbon-materials company traded on the Nasdaq Global Market. Headquartered in Greenwood Village, Colorado, Arq focuses on consumable air, water, and soil treatment solutions built primarily around activated carbon. The company operates as a vertically integrated North American producer of activated carbon products, with manufacturing, mining, and logistics activities tied to Louisiana and coal-recovery/manufacturing operations in Kentucky. Its core mission is to help customers reduce contaminants such as mercury, PFAS, and other pollutants in response to current and expected environmental regulations. ([sec.gov](https://www.sec.gov/Archives/edgar/data/0001515156/000151515626000021/arq-20251231.htm?utm_source=openai))
Arq’s corporate history is relatively recent in its current form, but it is rooted in a longer transformation. The business was previously known as Advanced Emissions Solutions, Inc. and in 2023 completed the acquisition of Arq Limited, a UK-based environmental technology company founded in 2015 that had developed a novel process for producing specialty carbon products from coal mining waste. In February 2024, the company completed its rebrand to Arq, Inc., and its common stock began trading under the ARQ ticker on Nasdaq. This rebranding marked a strategic pivot toward a more focused environmental-products platform. ([arq.com](https://www.arq.com/history/?utm_source=openai))
Read moreShow less
From a product perspective, Arq is centered on granular activated carbon (GAC), powdered activated carbon (PAC), colloidal carbon products (CCP), and related additives. GAC is positioned for water treatment applications, PAC serves industrial purification and emissions-control use cases, and the company also markets products for remediation and other environmental applications. Arq emphasizes domestic sourcing and manufacturing, which is important in a market where reliability of supply, regulatory compliance, and technical performance can matter as much as price. The company also highlights a broad intellectual-property base, including a family of more than 190 patents and patent applications. ([arq.com](https://www.arq.com/products/?utm_source=openai))
In competitive terms, Arq is best viewed as a specialized environmental materials supplier rather than a broad chemicals conglomerate. Its competitive positioning depends on product performance, regulatory tailwinds, and the ability to secure long-term customer contracts in water treatment, air emissions control, and soil remediation. Because activated carbon is used in highly regulated end markets, Arq’s business benefits from rising environmental compliance needs, especially around PFAS and other contaminants. At the same time, the company’s niche focus means execution, production efficiency, and customer adoption are central to value creation. ([sec.gov](https://www.sec.gov/Archives/edgar/data/0001515156/000151515626000021/arq-20251231.htm?utm_source=openai))
Recent news is material for investors. In its March 2026 fourth-quarter and full-year 2025 results, Arq reported record full-year revenue of about $120 million, up 10% year over year, and introduced full-year 2026 guidance. Management also announced a pause in GAC production and development while it conducts a comprehensive engineering and production-process optimization review. That combination suggests a company that has achieved meaningful commercial momentum in its PAC business while reassessing the best path forward for its next growth phase. ([arq.com](https://www.arq.com/press-releases/arq-reports-fourth-quarter-and-full-year-2025-results/?utm_source=openai))
Recent ranked signals in the same sector
Purchases our model currently ranks for the recommendations list.
All recommendations
