ARQ · Arq, Inc. · Shareholders & Ownership

$1.84 -0.02 (-1.08%) At close · Oct 21

Market Cap

$79.69M

43.67M

Volume · Oct 21 248.23K Avg daily vol (3M) 231.93K

Every disclosed holder of ARQ in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns ARQ

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	98	15,384,631	35.23%	Yes
Insiders (Forms 3, 4, 5)	13	7,115,630	16.29%	Yes
13D/G-only blocks	1	2,191,278	5.02%	Yes
Remaining	—	18,976,944	43.46%	Rest
Registered funds (N-PORT, not summed)	57	3,847,026	8.81%	No

Shares outstanding: 43,668,483, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of ARQ

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	McIntyre Julian Alexander Insider CIK 1963363 · Jul 1, 2026 Director, issuer-wide	3,299,550	7.56%	+49,283	Jul 1, 2026	Director, issuer-wide
1.1	Julian Alexander McIntyre 13D CIK 1963363 · Unknown · Mar 9, 2023 not summed	3,044,836	6.97%	—	Mar 9, 2023	not summed
2	Daniel Kaufman 13G CIK 2001906 · Unknown · Mar 11, 2026 Rule 13d-1(c), passive investor	2,191,278	5.02%	—	Mar 11, 2026	Rule 13d-1(c), passive investor
3	ROYCE & ASSOCIATES LP 13F CIK 906304 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,862,764	4.27%	+114,320	Jun 30, 2026	carried, not yet filed for the newest quarter
3.1	Royce Small-Cap Opportunity Fund Fund S000009512 · Registered fund · Jun 30, 2026 ROYCE FUND, not summed	910,377	2.08%	+10,370	Jun 30, 2026	ROYCE FUND, not summed
4	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,814,114	4.15%	+728,404	Jun 30, 2026	carried, not yet filed for the newest quarter
5	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,464,532	3.35%	+33,082	Jun 30, 2026	carried, not yet filed for the newest quarter
6	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	1,056,800	2.42%	0	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
7	Rasmus Robert E. Insider CIK 1555130 · Mar 23, 2026 Director, Chief Executive Officer, issuer-wide	1,007,716	2.31%	—	Mar 23, 2026	Director, Chief Executive Officer, issuer-wide
8	MARSHALL WACE, LLP 13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	880,201	2.02%	+70,496	Jun 30, 2026	carried, not yet filed for the newest quarter
9	Peapod Lane Capital LLC 13F CIK 2050979 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	787,880	1.80%	+12,531	Jun 30, 2026	carried, not yet filed for the newest quarter
10	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	607,420	1.39%	-154,770	Jun 30, 2026	carried, not yet filed for the newest quarter
10.1	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	98,429	0.23%	-7,132	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
10.2	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	61,514	0.14%	-87,479	Jul 31, 2026	Dimensional ETF Trust, not summed
10.3	Dimensional U.S. Core Equity 2 ETF Fund S000070903 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	40,459	0.09%	0	Jul 31, 2026	Dimensional ETF Trust, not summed
10.4	U.S. CORE EQUITY 1 PORTFOLIO Fund S000000979 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	36,632	0.08%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
10.5	U.S. CORE EQUITY 2 PORTFOLIO Fund S000000980 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	33,633	0.08%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
11	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	598,059	1.37%	+187,489	Jun 30, 2026	carried, not yet filed for the newest quarter
12	Campbell-Breeden Richard Insider CIK 1963344 · Jul 1, 2026 Director, issuer-wide	540,937	1.24%	+49,283	Jul 1, 2026	Director, issuer-wide
13	JANE STREET GROUP, LLC 13F CIK 1595888 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	509,225	1.17%	+319,335	Jun 30, 2026	carried, not yet filed for the newest quarter
14	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	508,965	1.17%	-1,588,557	Jun 30, 2026	carried, not yet filed for the newest quarter
14.1	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	111,170	0.25%	+28,774	Jun 30, 2026	iShares Trust, not summed
15	Wong Joseph M Insider CIK 1785490 · Aug 14, 2026 Chief Technology Officer, issuer-wide	506,648	1.16%	+55,000	Aug 14, 2026	Chief Technology Officer, issuer-wide
16	Blank Jeremy Insider CIK 1962987 · Jul 1, 2026 Director, issuer-wide	503,000	1.15%	—	Jul 1, 2026	Director, issuer-wide
17	DCF Advisers, LLC 13F CIK 1802493 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	461,585	1.06%	+133,782	Jun 30, 2026	carried, not yet filed for the newest quarter
18	Truffle Hound Capital, LLC 13F CIK 1595862 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	420,000	0.96%	+420,000	Jun 30, 2026	carried, not yet filed for the newest quarter
19	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	399,518	0.91%	-401,713	Jun 30, 2026	carried, not yet filed for the newest quarter
20	Round Rock Advisors LLC 13F CIK 1846991 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	378,979	0.87%	+188,271	Jun 30, 2026	carried, not yet filed for the newest quarter
21	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	372,595	0.85%	+31,729	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
22	RBF Capital, LLC 13F CIK 1134621 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	370,000	0.85%	+370,000	Jun 30, 2026	carried, not yet filed for the newest quarter
23	Steinmetz Shimon Insider CIK 1579280 · Sep 8, 2026 Chief Financial Officer, issuer-wide	368,023	0.84%	+2,972	Sep 8, 2026	Chief Financial Officer, issuer-wide
24	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	358,479	0.82%	+76,651	Jun 30, 2026	carried, not yet filed for the newest quarter
25	GSA CAPITAL PARTNERS LLP 13F CIK 1362033 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	347,700	0.80%	+58,542	Jun 30, 2026	carried, not yet filed for the newest quarter
26	JACOBS LEVY EQUITY MANAGEMENT, INC 13F CIK 884414 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	328,988	0.75%	-22,200	Jun 30, 2026	carried, not yet filed for the newest quarter
27	Marex Group plc 13F CIK 1997464 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	260,848	0.60%	+200,848	Jun 30, 2026	carried, not yet filed for the newest quarter
28	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	251,777	0.58%	+223,077	Jun 30, 2026	carried, not yet filed for the newest quarter
29	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	231,490	0.53%	+27,720	Jun 30, 2026	carried, not yet filed for the newest quarter
30	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	211,100	0.48%	+7,563	Jun 30, 2026	carried, not yet filed for the newest quarter
31	EICHER CAROL S Insider CIK 1434811 · Jul 1, 2026 Director, issuer-wide	198,651	0.45%	+24,641	Jul 1, 2026	Director, issuer-wide
32	Williamson Jeremy Insider CIK 1993283 · Feb 27, 2026 Chief Operating Officer, issuer-wide	185,606	0.43%	+50,318	Feb 27, 2026	Chief Operating Officer, issuer-wide
33	Connor, Clark & Lunn Investment Management Ltd. 13F CIK 1596800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	181,789	0.42%	+181,789	Jun 30, 2026	carried, not yet filed for the newest quarter
34	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · May 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	163,245	0.37%	+5,665	May 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
35	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	163,201	0.37%	+163,201	Jun 30, 2026	carried, not yet filed for the newest quarter
36	Owino Peter Oluoch Insider CIK 2141907 · Sep 1, 2026 Chief Accounting Officer, issuer-wide	161,047	0.37%	—	Sep 1, 2026	Chief Accounting Officer, issuer-wide
37	Rangeley Capital, LLC 13F CIK 1517796 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	157,000	0.36%	+157,000	Jun 30, 2026	carried, not yet filed for the newest quarter
38	Smith Claiborne Benson Insider CIK 2021219 · Aug 1, 2026 Gen Counsel, Corp Secretary, issuer-wide	155,513	0.36%	+61,047	Aug 1, 2026	Gen Counsel, Corp Secretary, issuer-wide
39	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	153,987	0.35%	-410,611	Jun 30, 2026	carried, not yet filed for the newest quarter
40	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	136,045	0.31%	+123,096	Jun 30, 2026	carried, not yet filed for the newest quarter
41	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	120,400	0.28%	-20,526	Jun 30, 2026	carried, not yet filed for the newest quarter
41.1	Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF Fund S000048296 · Registered fund · May 31, 2026 Goldman Sachs ETF Trust, not summed	24,507	0.06%	+327	May 31, 2026	Goldman Sachs ETF Trust, not summed
41.2	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Jun 30, 2026 GOLDMAN SACHS TRUST, not summed	24,416	0.06%	+8,399	Jun 30, 2026	GOLDMAN SACHS TRUST, not summed
42	Qube Research & Technologies Ltd 13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	93,008	0.21%	+93,008	Jun 30, 2026	carried, not yet filed for the newest quarter
43	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	77,788	0.18%	-150,568	Jun 30, 2026	carried, not yet filed for the newest quarter
44	Corient Private Wealth LLC 13F CIK 1948780 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	77,525	0.18%	+25	Jun 30, 2026	carried, not yet filed for the newest quarter
45	Bergman Laurie Insider CIK 1672722 · Jul 1, 2026 VP, CAO & Corporate Controller, issuer-wide	76,343	0.17%	+24,641	Jul 1, 2026	VP, CAO & Corporate Controller, issuer-wide
46	AMERIPRISE FINANCIAL INC 13F CIK 820027 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	75,796	0.17%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
47	Multi-Manager Small Cap Equity Strategies Fund Fund S000036206 · Registered fund · May 31, 2026 COLUMBIA FUNDS SERIES TRUST I, not summed	75,596	0.17%	0	May 31, 2026	COLUMBIA FUNDS SERIES TRUST I, not summed
48	BRIDGEWAY CAPITAL MANAGEMENT, LLC 13F CIK 1107261 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	74,780	0.17%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
48.1	Ultra-Small Company Market Fund Fund S000004424 · Registered fund · Jun 30, 2026 Bridgeway Funds, Inc., not summed	68,779	0.16%	0	Jun 30, 2026	Bridgeway Funds, Inc., not summed
49	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	71,153	0.16%	-44,875	Jun 30, 2026	carried, not yet filed for the newest quarter
50	Hansen Stacia Insider CIK 1999392 · Mar 23, 2026 Chief Accounting Officer, issuer-wide	64,305	0.15%	-8,894	Mar 23, 2026	Chief Accounting Officer, issuer-wide

3 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 142 holders

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Key facts CIK 1515156 CUSIP 00770C101 13F (30d) 8 filings 8 filers Visit website Investor relations