Insider Transactions Reported by 18 Insiders of Arq, Inc.

Symbol: ARQ on Nasdaq
Location: Greenwood Village, CO

Quick Takeaways

ARQ - Arq, Inc. has 18 insiders with reported activity on this page.
Net insider value flow over the last year: +$1,570,719.
Recent transaction rows are available for direct filing-level review.

What Changed

Buy value: $1,623,587; sell value: $52,868.
Net share flow: +510,089.

Why This Matters

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.

Source 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: +$1,570,719.

Buys

$1,623,587

Shares: 520,256

Insiders: 8

Sells

$52,868

Shares: 10,167

Insiders: 4

Net

+$1,570,719

Shares: +510,089

Insiders: 4

Window (months)	Buy shares	Sell shares	Buy $	Sell $	Net $
0-3	239,500	0	$505,410	$0	+$505,410
3-6	93,638	0	$346,048	$0	+$346,048
6-9	0	10,167	$0	$52,868	-$52,868
9-12	187,118	0	$772,130	$0	+$772,130

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	+$205,000	+1.6%	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	+$373,852	+12%	Mixed	23 Mar 2026
Joseph M. Wong	Chief Technology Officer	$1,277,265	+$76,790	+6.4%	Mixed	23 Mar 2026
Richard Campbell-Breeden	Director	$1,179,080	+$740,652	+169%	Mixed	23 Mar 2026
Jeremy Williamson	Chief Operating Officer	$651,477	-$7,658	-1.2%	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
Jay L. Voncannon	Chief Financial Officer	$230,860	+$54,970	+31%	Filing P/S	10 Nov 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
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 by the holder's primary source 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
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	+$205,000	01 Jul 2025	3/4/5
Alta Fundamental Advisers LLC	3/4/5 13F	Director · Company	1.8% from 13F	2,028,963	$12,660,729	—	01 Jul 2024	3/4/5 13F
Arq Ltd	3/4/5	10%+ Owner	— class O/S missing	3,814,864	$9,659,236	—	01 Feb 2023	3/4/5
Daniel L. Kaufman	13D/G	Daniel Kaufman	5.1%	2,191,278	$8,436,420	$0	11 Mar 2026	13D/G
AIGH Capital Management LLC	13F	Company	5.3%	2,273,092	$7,433,010	—	31 Dec 2025	13F
BlackRock, Inc.	13F	Company	4.8%	2,045,938	$6,690,217	—	31 Dec 2025	13F
VANGUARD GROUP INC	13F	Company	4.3%	1,830,017	$5,984,156	—	31 Dec 2025	13F
ROYCE & ASSOCIATES LP	13F	Company	3.4%	1,458,444	$4,769,112	—	31 Dec 2025	13F
Robert E. Rasmus	3/4/5	Chief Executive Officer, Director	— mixed-class rows	1,083,424 mixed-class rows	$3,526,477	+$373,852	23 Mar 2026	3/4/5
DIMENSIONAL FUND ADVISORS LP	13F	Company	2.1%	919,640	$3,007,041	—	31 Dec 2025	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.8%	778,142	$2,544,974	—	31 Dec 2025	13F
STATE STREET CORP	13F	Company	1.3%	561,888	$1,837,374	—	31 Dec 2025	13F
MARSHALL WACE, LLP	13F	Company	1%	444,207	$1,452,556	—	31 Dec 2025	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.96%	412,299	$1,348,218	—	31 Dec 2025	13F
Joseph M. Wong	3/4/5	Chief Technology Officer	0.91%	390,601	$1,277,265	+$76,790	23 Mar 2026	3/4/5
MORGAN STANLEY	13F	Company	0.85%	362,538	$1,185,500	—	31 Dec 2025	13F
Richard Campbell-Breeden	3/4/5	Director	1.1%	491,654	$1,179,080	+$740,652	23 Mar 2026	3/4/5
AQR CAPITAL MANAGEMENT LLC	13F	Company	0.7%	299,787	$980,304	—	31 Dec 2025	13F
JACOBS LEVY EQUITY MANAGEMENT, INC	13F	Company	0.61%	262,330	$857,819	—	31 Dec 2025	13F
DCF Advisers, LLC	13F	Company	0.61%	260,570	$852,064	—	31 Dec 2025	13F
Peapod Lane Capital LLC	13F	Company	0.53%	228,564	$747,404	—	31 Dec 2025	13F
NORTHERN TRUST CORP	13F	Company	0.47%	200,769	$656,515	—	31 Dec 2025	13F
Jeremy Williamson	3/4/5	Chief Operating Officer	0.43%	185,606	$651,477	-$7,658	27 Feb 2026	3/4/5
Louis Spencer Wells	3/4/5	Director	— class O/S missing	102,927	$642,264	—	01 Jul 2024	3/4/5
Marex Group plc	13F	Company	0.44%	190,000	$621,300	—	31 Dec 2025	13F
GSA CAPITAL PARTNERS LLP	13F	Company	0.38%	161,836	$529,000	—	31 Dec 2025	13F
GRATIA CAPITAL, LLC	13F	Company	0.36%	155,000	$506,850	—	31 Dec 2025	13F
Greg P. Marken	3/4/5	CEO	— mixed-class rows	277,282 mixed-class rows	$471,993	—	23 Mar 2023	3/4/5
GOLDMAN SACHS GROUP INC	13F	Company	0.3%	129,537	$423,586	—	31 Dec 2025	13F
LAZARD ASSET MANAGEMENT LLC	13F	Company	0.26%	110,783	$362,260	—	31 Dec 2025	13F
Carol S. Eicher	3/4/5	Director	0.41%	174,010	$339,058	+$151,009	13 Mar 2026	3/4/5
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.23%	99,993	$326,977	—	31 Dec 2025	13F
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
AMERICAN CENTURY COMPANIES INC	13F	Company	0.2%	84,356	$275,844	—	31 Dec 2025	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.19%	80,093	$261,904	—	31 Dec 2025	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.19%	79,604	$260,305	—	31 Dec 2025	13F
XTX Topco Ltd	13F	Company	0.18%	76,843	$251,277	—	31 Dec 2025	13F
PERRITT CAPITAL MANAGEMENT INC	13F	Company	0.18%	75,000	$245,250	—	31 Dec 2025	13F
Rothschild Wealth LLC	13F	Company	0.18%	75,000	$245,250	—	31 Dec 2025	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.17%	74,780	$244,531	—	31 Dec 2025	13F
JANE STREET GROUP, LLC	13F	Company	0.17%	74,224	$242,712	—	31 Dec 2025	13F
Bank of New York Mellon Corp	13F	Company	0.17%	73,079	$238,968	—	31 Dec 2025	13F
Jay L. Voncannon	3/4/5	Chief Financial Officer	0.15%	65,000	$230,860	+$54,970	10 Nov 2025	3/4/5
UBS Group AG	13F	Company	0.16%	67,997	$222,349	—	31 Dec 2025	13F
Stacia Hansen	3/4/5	Chief Accounting Officer	— mixed-class rows	86,760 mixed-class rows	$210,277	-$14,258	23 Mar 2026	3/4/5
CITADEL ADVISORS LLC	13F	Company	0.15%	63,401	$207,321	—	31 Dec 2025	13F
Point72 Asset Management, L.P.	13F	Company	0.14%	61,032	$199,575	—	31 Dec 2025	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.14%	57,888	$189,294	—	31 Dec 2025	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
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
Robert E. Rasmus	ARQ	Common Stock	Purchase	5.49%	$102,500	$4.10	25,000	480,782	23 May 2025	Direct
Jeremy Blank	ARQ	Common Stock	Purchase	15.4%	$205,000	$4.10	50,000	374,955	23 May 2025	By Community Master Fund LP
Richard Campbell-Breeden	ARQ	Common Stock	Purchase	49.6%	$307,500	$4.10	75,000	226,148	23 May 2025	By Omeshorn Holdings Limited.
Joseph M. Wong	ARQ	Common Stock	Purchase	4.51%	$73,760	$4.61	16,000	370,790	16 May 2025	Direct
Robert E. Rasmus	ARQ	Common Stock	Purchase	153.2%	$49,263	$3.93	12,535	20,718	14 May 2025	RER Investments LLC
Robert E. Rasmus	ARQ	Common Stock	Purchase	55.5%	$11,684	$4.00	2,921	8,183	13 May 2025	RER Investments LLC
Jeremy Williamson	ARQ	Common Stock	Purchase	0.29%	$1,608	$4.02	400	139,099	12 May 2025	Direct
Robert E. Rasmus	ARQ	Common Stock	Purchase	804.1%	$18,720	$4.00	4,680	5,262	12 May 2025	RER Investments LLC
Robert E. Rasmus	ARQ	Common Stock	Purchase		$2,095	$3.60	582	582	09 May 2025	RER Investments LLC

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