Insider Transactions Reported by 18 Insiders of Arq, Inc.

Symbol: ARQ on Nasdaq
Location: Greenwood Village, CO

Key facts

ARQ - Arq, Inc. has 18 insiders with reported activity on this page.
Net insider value flow over the last year: +$760,660.
Recent transaction rows are available for direct filing-level review.

Change

Buy value: $851,458; sell value: $90,797.
Net share flow: +306,262.

Research use

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Evidence

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Net insider flow leans to buying over the last 12 months. Net value: +$760,660.

Buys

$851,458

Shares: 333,138

Insiders: 6

Sells

$90,798

Shares: 26,876

Insiders: 5

Net

+$760,660

Shares: +306,262

Insiders: 1

Window (months)	Buy shares	Sell shares	Buy $	Sell $	Net $
0-3	239,500	16,709	$505,410	$37,929	+$467,481
3-6	0	0	$0	$0	$0
6-9	93,638	0	$346,048	$0	+$346,048
9-12	0	10,167	$0	$52,868	-$52,868

Arq, Inc. executives and other stock owners filed with the SEC include:

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
Julian Alexander McIntyre	Director	$22,881,879			Mixed	25 Sep 2025
Jeremy Blank	Director	$13,288,946			Mixed	01 Jul 2025
Alta Fundamental Advisers LLC	Director	$12,660,729			Mixed	01 Jul 2024
Arq Ltd	10%+ Owner	$9,659,236			Mixed	01 Feb 2023
Robert E. Rasmus	Chief Executive Officer, Director	$3,526,477	+$189,590	+5.7%	Mixed	23 Mar 2026
Joseph M. Wong	Chief Technology Officer	$1,277,265	+$3,030	+0.24%	Mixed	23 Mar 2026
Richard Campbell-Breeden	Director	$1,179,080	+$433,152	+58%	Mixed	23 Mar 2026
Jeremy Williamson	Chief Operating Officer	$651,477	-$9,266	-1.4%	Mixed	27 Feb 2026
Louis Spencer Wells	Director	$642,264			Mixed	01 Jul 2024
Greg P. Marken	Ceo	$471,993			Mixed	23 Mar 2023
Carol S. Eicher	Director	$339,058	+$151,009	+80%	Filing P/S	13 Mar 2026
Claiborne B. Smith	Gen Counsel, Corp Secretary	$308,903	-$9,637	-3%	Mixed	23 Mar 2026
Laurie Bergman	Director	$276,088			Mixed	01 Jul 2025
Stacia Hansen	Chief Accounting Officer	$210,277	-$14,258	-6.4%	Mixed	23 Mar 2026
Taylor J. Simonton	Director	$166,659			Mixed	01 Jul 2022
Morgan Fields	Chief Accounting Officer	$163,565			Mixed	17 Aug 2023
Jay Loring Voncannon	Chief Financial Officer	$109,620	+$17,041	+18%	Filing P/S	04 May 2026
Theodore James Sanders	General Counsel	$71,481			Mixed	19 Nov 2021

Top shareholders of Arq, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Daniel Louis Kaufman	13D/G	Daniel Kaufman	5.1%	2,191,278	$8,436,420	$0	11 Mar 2026	13D/G
Julian Alexander McIntyre	3/4/5	Director	7.6%	3,250,267	$22,881,879	—	25 Sep 2025	3/4/5
Jeremy Blank	3/4/5	Director	5.8%	2,488,567	$13,288,946	—	01 Jul 2025	3/4/5
Richard Campbell-Breeden	3/4/5	Director	1.1%	491,654	$1,179,080	+$433,152	23 Mar 2026	3/4/5
Joseph M. Wong	3/4/5	Chief Technology Officer	0.91%	390,601	$1,277,265	+$3,030	23 Mar 2026	3/4/5
Jeremy Williamson	3/4/5	Chief Operating Officer	0.43%	185,606	$651,477	-$9,266	27 Feb 2026	3/4/5
Carol S. Eicher	3/4/5	Director	0.41%	174,010	$339,058	+$151,009	13 Mar 2026	3/4/5
Claiborne B. Smith	3/4/5	Gen Counsel, Corp Secretary	0.22%	94,466	$308,903	-$9,637	23 Mar 2026	3/4/5
Laurie Bergman	3/4/5	Director	0.12%	51,702	$276,088	—	01 Jul 2025	3/4/5
Jay Loring Voncannon	3/4/5	Chief Financial Officer	0.11%	48,291	$109,620	+$17,041	04 May 2026	3/4/5
BlackRock, Inc.	13F	Company	4.9%	2,097,522	$5,369,657	—	31 Mar 2026	13F
ROYCE & ASSOCIATES LP	13F	Company	4.1%	1,748,444	$4,476,017	—	31 Mar 2026	13F
VANGUARD CAPITAL MANAGEMENT LLC	13F	Company	3.3%	1,431,450	$3,664,512	—	31 Mar 2026	13F
AQR CAPITAL MANAGEMENT LLC	13F	Company	2.5%	1,085,710	$2,779,416	—	31 Mar 2026	13F
MARSHALL WACE, LLP	13F	Company	1.9%	809,705	$2,072,844	—	31 Mar 2026	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.9%	801,231	$2,051,520	—	31 Mar 2026	13F
Peapod Lane Capital LLC	13F	Company	1.8%	775,349	$1,971,533	—	31 Mar 2026	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	1.8%	762,190	$1,950,889	—	31 Mar 2026	13F
STATE STREET CORP	13F	Company	1.3%	564,598	$1,445,371	—	31 Mar 2026	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.96%	410,570	$1,051,059	—	31 Mar 2026	13F
JACOBS LEVY EQUITY MANAGEMENT, INC	13F	Company	0.82%	351,188	$899,041	—	31 Mar 2026	13F
DCF Advisers, LLC	13F	Company	0.77%	327,803	$839,176	—	31 Mar 2026	13F
GSA CAPITAL PARTNERS LLP	13F	Company	0.68%	289,158	$740,000	—	31 Mar 2026	13F
D. E. Shaw & Co., Inc.	13F	Company	0.66%	281,828	$721,480	—	31 Mar 2026	13F
NORTHERN TRUST CORP	13F	Company	0.53%	228,356	$584,591	—	31 Mar 2026	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.48%	203,770	$521,652	—	31 Mar 2026	13F
VANGUARD FIDUCIARY TRUST CO	13F	Company	0.48%	203,537	$521,055	—	31 Mar 2026	13F
Round Rock Advisors LLC	13F	Company	0.45%	190,708	$488,212	—	31 Mar 2026	13F
JANE STREET GROUP, LLC	13F	Company	0.44%	189,890	$486,118	—	31 Mar 2026	13F
VANGUARD PORTFOLIO MANAGEMENT LLC	13F	Company	0.43%	184,246	$471,670	—	31 Mar 2026	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.33%	140,926	$360,770	—	31 Mar 2026	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.31%	133,045	$340,595	—	31 Mar 2026	13F
MORGAN STANLEY	13F	Company	0.27%	116,028	$297,033	—	31 Mar 2026	13F
Corient Private Wealth LLC	13F	Company	0.18%	77,500	$198,400	—	31 Mar 2026	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.18%	75,796	$194,038	—	31 Mar 2026	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.17%	74,780	$191,437	—	31 Mar 2026	13F
Bank of New York Mellon Corp	13F	Company	0.17%	73,079	$187,082	—	31 Mar 2026	13F
XTX Topco Ltd	13F	Company	0.17%	72,660	$186,010	—	31 Mar 2026	13F
STRS OHIO	13F	Company	0.17%	72,400	$185,344	—	31 Mar 2026	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.16%	69,775	$178,624	—	31 Mar 2026	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	0.15%	65,117	$166,700	—	31 Mar 2026	13F
Marex Group plc	13F	Company	0.14%	60,000	$153,600	—	31 Mar 2026	13F
GABELLI FUNDS LLC	13F	Company	0.12%	52,000	$133,120	—	31 Mar 2026	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.11%	45,519	$116,529	—	31 Mar 2026	13F
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	13F	Company	0.1%	42,326	$108,355	—	31 Mar 2026	13F
RHUMBLINE ADVISERS	13F	Company	0.1%	41,196	$105,454	—	31 Mar 2026	13F
Invesco Ltd.	13F	Company	0.09%	37,738	$96,610	—	31 Mar 2026	13F
Scientech Research LLC	13F	Company	0.08%	34,628	$88,648	—	31 Mar 2026	13F
Nuveen, LLC	13F	Company	0.08%	33,406	$85,519	—	31 Mar 2026	13F
FRANKLIN RESOURCES INC	13F	Company	0.07%	30,543	$78,190	—	31 Mar 2026	13F

Recent Insider Transactions by Companies or Individuals for Arq, Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership
Jay Loring Voncannon	ARQ	Common Stock	Sale	-25.7%	$37,929	$2.27	-16,709	48,291	04 May 2026	Direct
Joseph M. Wong	ARQ	Common Stock	Tax liability	-2.52%			-10,085	390,601	23 Mar 2026	Direct
Claiborne B. Smith	ARQ	Common Stock	Tax liability	-7.83%			-8,025	94,466	23 Mar 2026	Direct
Stacia Hansen	ARQ	Common Stock	Tax liability	-12.2%			-8,894	64,305	23 Mar 2026	Direct
Robert E. Rasmus	ARQ	Common Stock	Tax liability	-0.18%			-845	479,937	23 Mar 2026	Direct
Richard Campbell-Breeden	ARQ	Common Stock	Purchase	58.9%	$331,665	$2.21	150,000	404,786	23 Mar 2026	By Omeshorn Holdings Limited.
Joseph M. Wong	ARQ	Common Stock	Purchase	2.56%	$18,900	$1.89	10,000	400,686	17 Mar 2026	Direct
Claiborne B. Smith	ARQ	Common Stock	Purchase	0.99%	$1,918	$1.92	1,000	102,491	16 Mar 2026	Direct
Carol S. Eicher	ARQ	Common Stock	Purchase	80.3%	$151,009	$1.95	77,500	174,010	13 Mar 2026	Direct
Claiborne B. Smith	ARQ	Common Stock	Purchase	1%	$1,918	$1.92	1,000	101,491	12 Mar 2026	Direct
Joseph M. Wong	ARQ	Common Stock	Tax liability	-4.25%			-17,338	390,686	27 Feb 2026	Direct
Joseph M. Wong	ARQ	Common Stock	Options Exercise	11%			40,286	408,024	27 Feb 2026	Direct
Joseph M. Wong	ARQ	Performance Share Units	Options Exercise	-100%			-30,225	0	27 Feb 2026	Direct
Jeremy Williamson	ARQ	Common Stock	Tax liability	-8.97%			-18,282	185,606	27 Feb 2026	Direct
Jeremy Williamson	ARQ	Common Stock	Options Exercise	50.7%			68,600	203,888	27 Feb 2026	Direct
Jeremy Williamson	ARQ	Performance Share Units	Options Exercise	-100%			-51,467	0	27 Feb 2026	Direct
Claiborne B. Smith	ARQ	Common Stock	Tax liability	-9.2%			-10,176	100,491	27 Feb 2026	Direct
Claiborne B. Smith	ARQ	Common Stock	Options Exercise	34.2%			28,229	110,667	27 Feb 2026	Direct
Claiborne B. Smith	ARQ	Performance Share Units	Options Exercise	-100%			-21,179	0	27 Feb 2026	Direct
Jay L. Voncannon	ARQ	Common Stock	Purchase	10.2%	$21,310	$3.55	6,000	65,000	11 Nov 2025	Direct
Richard Campbell-Breeden	ARQ	Common Stock	Purchase	12.7%	$101,487	$3.54	28,638	254,786	11 Nov 2025	By Omeshorn Holdings Limited.
Jay L. Voncannon	ARQ	Common Stock	Purchase	18%	$33,660	$3.74	9,000	59,000	10 Nov 2025	Direct
Robert E. Rasmus	ARQ	Common Stock	Purchase	241.3%	$189,590	$3.79	50,000	70,718	10 Nov 2025	By RER Investments LLC
Julian Alexander McIntyre	ARQ	Common Stock	Other	-0.93%			-30,000	3,191,289	25 Sep 2025	By Allard Services Limited
Jeremy Williamson	ARQ	Common Stock	Tax liability	-1.48%			-2,029	135,288	18 Sep 2025	Direct
Joseph M. Wong	ARQ	Common Stock	Sale	-0.82%	$15,870	$5.20	-3,052	367,738	04 Aug 2025	Direct
Claiborne B. Smith	ARQ	Common Stock	Sale	-3.05%	$13,473	$5.20	-2,591	82,438	04 Aug 2025	Direct
Stacia Hansen	ARQ	Common Stock	Sale	-3.61%	$14,258	$5.20	-2,742	73,199	04 Aug 2025	Direct
Jeremy Williamson	ARQ	Common Stock	Sale	-1.28%	$9,266	$5.20	-1,782	137,317	04 Aug 2025	Direct
Julian Alexander McIntyre	ARQ	Common Stock	Award	58.8%			21,828	58,978	01 Jul 2025	Direct
Richard Campbell-Breeden	ARQ	Common Stock	Award	50.4%			29,104	86,868	01 Jul 2025	Direct
Jeremy Blank	ARQ	Common Stock	Award	58.6%			29,104	78,762	01 Jul 2025	Direct
Carol S. Eicher	ARQ	Common Stock	Award	17.8%			14,552	96,510	01 Jul 2025	Direct
Laurie Bergman	ARQ	Common Stock	Award	39.2%			14,552	51,702	01 Jul 2025	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.