What does CUSIP 00770C101 represent in this 13F holders report?

CUSIP 00770C101 is the security identifier for ARQ - Arq, Inc. - Common Stock, $0.001 par value used to aggregate holder disclosures.

How many institutions held ARQ - Arq, Inc. - Common Stock, $0.001 par value in Q1 2026?

26 institutional investors reported ARQ - Arq, Inc. - Common Stock, $0.001 par value for Q1 2026. Use the holders table for investor-level position and value details.

Arq, Inc. - Common Stock, $0.001 par value (ARQ)

CUSIP: 00770C101

Q1 2026 13F Holders as of 31 Mar 2026

Type / Class: Equity / Common Stock, $0.001 par value
Shares outstanding: 42,798,398
Total 13F shares: 1,798,842
Share change: -2,758,562
Total reported value: $4,590,088
Price per share: $2.56
Number of holders: 26
Value change: -$9,325,391
Number of buys: 10
Number of sells: 11

Quarterly Holders Quick Answers

What is CUSIP 00770C101?
CUSIP 00770C101 identifies ARQ - Arq, Inc. - Common Stock, $0.001 par value in SEC institutional holdings data.

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Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Previous quarter: Q4 2025

Recent filing periods for CUSIP 00770C101:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of ARQ - Arq, Inc. - Common Stock, $0.001 par value (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 Louis 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
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
BNP PARIBAS FINANCIAL MARKETS	13F	Company	0.14%	57,809	$189,035	—	31 Dec 2025	13F

Institutional Holders of Arq, Inc. - Common Stock, $0.001 par value (ARQ) as of Q1 2026

As of 31 Mar 2026, Arq, Inc. - Common Stock, $0.001 par value (ARQ) was held by 26 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 1,798,842 shares. The largest 10 holders included Peapod Lane Capital LLC, DIMENSIONAL FUND ADVISORS LP, Bank of New York Mellon Corp, STRS OHIO, Nuveen, LLC, UBS Group AG, Murphy Pohlad Asset Management LLC, Mraz, Amerine & Associates, Inc., WEALTH ENHANCEMENT ADVISORY SERVICES, LLC, and Avanza Fonder AB. This page lists 26 institutional shareholders reporting positions in this security for the Q1 2026 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders

100

Q1 2026 holders

Holder diff

-74

Investor	Q4 2025 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q4 2025 Value $	Q1 2026 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.