ROYCE & ASSOCIATES LP

Position in ARQ — Arq, Inc.

CIK 906304 New York, NY

Position in ARQ

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$4,750,048

+$274,032 QoQ

Shares Held

1,862,764

+6.5% QoQ

Ownership

4.27%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

of 100 holders

Holding Since

Mar 2020

6 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

ROYCE & ASSOCIATES LP holds $87,972,256 across 3 Pollution & Treatment Controls names. ARQ ranks #3 (5.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CECO	Ceco Environmental Corp	842,317	$76,431,844
2	ERII	Energy Recovery, Inc.	752,812	$6,790,364
3	ARQ	Arq, Inc. This page	1,862,764	$4,750,048

6 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$4,750,048	1,862,764	+6.5%	Shares	Sole	2026-08-14
2026-03-31	$4,476,016	1,748,444	+19.9%	Shares	Sole	2026-05-12
2025-12-31	$4,769,111	1,458,444	+6.2%	Shares	Sole	2026-02-09
2025-09-30	$9,833,859	1,373,444	+168.8%	Shares	Sole	2025-11-12
2025-06-30	$2,743,635	510,919	+12152.3%	Shares	Sole	2025-08-11
2020-03-31	$27,396	4,170	—	Shares	Sole	2020-05-12
No filing history on record for this holder in this stock.