DIMENSIONAL FUND ADVISORS LP

Position in ARQ — Arq, Inc.

CIK 354204 AUSTIN, TX

Position in ARQ

as of Mar 31, 2026 · filed May 7, 2026 Compact

Position Value

$1,951,205

-$1,056,016 QoQ

Shares Held

762,190

-17.1% QoQ

Ownership

1.78%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

of 95 holders

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 90.5732166520159.ToString("F0")% Shared 5.172201157191776.ToString("F0")% None 4.254582190792322.ToString("F0")%

Industrials · as of Mar 31, 2026

DIMENSIONAL FUND ADVISORS LP holds $337,628,573 across 5 Pollution & Treatment Controls names. ARQ ranks #5 (0.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VLTO	Veralto Corp	1,788,026	$158,097,256
2	ZWS	Zurn Elkay Water Solutions Corp	2,563,031	$114,926,308
3	CECO	Ceco Environmental Corp	903,291	$53,818,075
4	ERII	Energy Recovery, Inc.	877,431	$8,835,729
5	ARQ	Arq, Inc. This page	762,190	$1,951,205

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,951,205	762,190	-17.1%	Shares	Sole	2026-05-07
2025-12-31	$3,007,221	919,640	+7.4%	Shares	Sole	2026-02-12
2025-09-30	$6,133,626	856,652	+10.6%	Shares	Sole	2025-11-12
2025-06-30	$4,159,965	774,668	+17.3%	Shares	Sole	2025-08-12
2025-03-31	$2,754,559	660,566	+47.0%	Shares	Sole	2025-05-13
2024-12-31	$3,401,291	449,312	+65.3%	Shares	Sole	2025-02-13
2024-09-30	$1,595,242	271,762	+8.2%	Shares	Sole	2024-11-07
2024-06-30	$1,524,358	251,130	+11.3%	Shares	Sole	2024-08-09
2024-03-31	$1,461,654	225,564	+19.7%	Shares	Sole	2024-05-10
2023-12-31	$561,776	188,516	-4.0%	Shares	Sole	2024-02-07
2023-09-30	$349,662	196,440	-35.5%	Shares	Sole	2023-11-09
2023-06-30	$566,351	304,490	-22.6%	Shares	Sole	2023-08-09
2023-03-31	$779,413	393,644	-8.7%	Shares	Sole	2023-05-12
2022-12-31	$1,047,420	431,038	-15.8%	Shares	Sole	2023-02-09
2022-09-30	$1,397,912	512,056	-1.2%	Shares	Sole	2022-11-10
2022-06-30	$2,429,879	518,098	+37.8%	Shares	Sole	2022-08-12
2022-03-31	$2,339,286	376,091	+32.3%	Shares	Defined	2022-05-13
2021-12-31	$1,881,973	284,286	+31.6%	Shares	Defined	2022-02-09
2021-09-30	$1,380,271	216,005	+16.8%	Shares	Defined	2021-11-12
2021-06-30	$1,369,931	184,876	+12.6%	Shares	Defined	2021-08-12
2021-03-31	$903,028	164,187	+82.2%	Shares	Defined	2021-05-14
2020-12-31	$495,726	90,132	+37.0%	Shares	Defined	2021-03-08
2020-09-30	$267,018	65,768	0.0%	Shares	Defined	2020-11-12
2020-06-30	$318,974	65,768	-1.7%	Shares	Defined	2020-08-13
2020-03-31	$439,631	66,915	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.