MARSHALL WACE, LLP

Position in CECO — Ceco Environmental Corp

CIK 1318757 LONDON, X0

Position in CECO

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$15,008,439

+$14,541,609 QoQ

Shares Held

251,904

+3129.5% QoQ

Ownership

0.702%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2022

11 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 100.ToString("F0")% None 0.ToString("F0")%

Industrials · as of Mar 31, 2026

MARSHALL WACE, LLP holds $27,674,853 across 6 Pollution & Treatment Controls names. CECO ranks #1 (54.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CECO	Ceco Environmental Corp This page	251,904	$15,008,439
2	VLTO	Veralto Corp	60,940	$5,388,314
3	ZWS	Zurn Elkay Water Solutions Corp	81,752	$3,665,759
4	ARQ	Arq, Inc.	809,705	$2,072,844
5	ERII	Energy Recovery, Inc.	106,297	$1,070,409
6	ZONE	CleanCore Solutions, Inc.	1,317,667	$469,088

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$15,008,439	251,904	+3129.5%	Shares	Other	2026-05-15
2025-12-31	$466,830	7,800	-77.7%	Shares	Other	2026-02-13
2025-09-30	$1,791,948	34,999	-57.8%	Shares	Other	2025-11-13
2024-03-31	$1,907,437	82,860	+91.6%	Shares	Other	2024-05-15
2023-12-31	$876,988	43,244	-30.1%	Shares	Other	2024-02-14
2023-09-30	$987,313	61,823	-6.0%	Shares	Other	2023-11-14
2023-06-30	$878,286	65,740	-17.4%	Shares	Other	2023-08-14
2023-03-31	$1,112,820	79,544	-68.5%	Shares	Other	2023-05-15
2022-12-31	$2,944,971	252,138	-11.6%	Shares	Other	2023-02-14
2022-09-30	$2,523,736	285,168	+92.2%	Shares	Other	2022-11-14
2022-06-30	$887,420	148,398	—	Shares	Other	2022-08-15
No filing history on record for this holder in this stock.