ACADIAN ASSET MANAGEMENT LLC

Position in ARQ — Arq, Inc.

CIK 916542 Boston, MA

Position in ARQ

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$25

-$7 QoQ

Shares Held

0.0% QoQ

Ownership

0.000%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2020

21 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Mar 31, 2026

ACADIAN ASSET MANAGEMENT LLC holds $111,192,391 across 5 Pollution & Treatment Controls names. ARQ ranks #5 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VLTO	Veralto Corp	1,217,068	$107,613,152
2	ZWS	Zurn Elkay Water Solutions Corp	73,990	$3,317,711
3	CECO	Ceco Environmental Corp	2,295	$136,736
4	ERII	Energy Recovery, Inc.	12,390	$124,767
5	ARQ	Arq, Inc. This page	10	$25

21 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$25	10	0.0%	Shares	Defined	2026-05-13
2025-12-31	$32	10	0.0%	Shares	Defined	2026-02-10
2025-09-30	$71	10	0.0%	Shares	Defined	2025-11-13
2025-06-30	$53	10	0.0%	Shares	Defined	2025-08-07
2025-03-31	$41	10	0.0%	Shares	Defined	2025-05-21
2024-12-31	$75	10	0.0%	Shares	Defined	2025-02-11
2024-09-30	$58	10	0.0%	Shares	Defined	2024-11-12
2024-06-30	$60	10	-100.0%	Shares	Defined	2024-08-06
2024-03-31	$371,265	57,294	-5.4%	Shares	Defined	2024-05-10
2023-12-31	$180,570	60,594	-26.1%	Shares	Defined	2024-02-13
2023-09-30	$145,922	81,979	-56.4%	Shares	Defined	2023-11-13
2023-06-30	$349,694	188,008	-9.5%	Shares	Defined	2023-08-07
2023-03-31	$411,481	207,819	-10.3%	Shares	Defined	2023-05-11
2022-12-31	$562,831	231,618	+18.7%	Shares	Defined	2023-02-14
2022-09-30	$532,685	195,123	+17.9%	Shares	Defined	2022-11-14
2022-06-30	$776,485	165,562	+31.5%	Shares	Defined	2022-08-09
2022-03-31	$783,172	125,912	-21.4%	Shares	Defined	2022-05-12
2021-12-31	$1,060,014	160,123	+2.7%	Shares	Defined	2022-02-10
2021-09-30	$996,220	155,903	+110.6%	Shares	Defined	2021-11-12
2021-06-30	$548,599	74,035	+138.8%	Shares	Defined	2021-08-11
2020-06-30	$150,350	31,000	—	Shares	Defined	2020-08-12
No filing history on record for this holder in this stock.