SEI INVESTMENTS CO

Position in CECO — Ceco Environmental Corp

CIK 350894 OAKS, PA

Position in CECO

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

Position Value

$6,632,028

+$169,725 QoQ

Shares Held

111,313

+3.1% QoQ

Ownership

0.310%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

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

Industrials · as of Mar 31, 2026

SEI INVESTMENTS CO holds $53,232,893 across 5 Pollution & Treatment Controls names. CECO ranks #3 (12.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VLTO	Veralto Corp	394,325	$34,866,215
2	ZWS	Zurn Elkay Water Solutions Corp	248,631	$11,148,613
3	CECO	Ceco Environmental Corp This page	111,313	$6,632,028
4	ERII	Energy Recovery, Inc.	51,837	$521,998
5	PCT	PureCycle Technologies, Inc.	12,339	$64,039

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$6,632,028	111,313	+3.1%	Shares	Sole	2026-05-13
2025-12-31	$6,462,303	107,975	+86.0%	Shares	Defined	2026-02-13
2025-09-30	$2,972,006	58,047	-14.4%	Shares	Defined	2025-11-13
2025-06-30	$1,919,191	67,792	+5.7%	Shares	Sole	2025-08-14
2025-03-31	$1,461,867	64,117	-41.8%	Shares	Sole	2025-05-14
2024-12-31	$3,329,048	110,124	+15.9%	Shares	Sole	2025-02-11
2024-09-30	$2,679,563	95,020	-4.1%	Shares	Defined	2024-11-12
2024-06-30	$2,858,716	99,089	+41.3%	Shares	Defined	2024-08-13
2024-03-31	$1,614,368	70,129	+35.2%	Shares	Defined	2024-05-07
2023-12-31	$1,051,659	51,857	+89.4%	Shares	Defined	2024-02-14
2023-09-30	$437,258	27,380	-65.3%	Shares	Sole	2023-11-14
2023-06-30	$1,055,212	78,983	-4.3%	Shares	Sole	2023-08-11
2023-03-31	$1,154,216	82,503	-34.6%	Shares	Sole	2023-05-12
2022-12-31	$1,472,497	126,070	-27.5%	Shares	Sole	2023-02-10
2022-09-30	$1,539,696	173,977	-20.5%	Shares	Sole	2022-11-14
2022-06-30	$1,308,316	218,782	0.0%	Shares	Sole	2022-08-15
2022-03-31	$1,201,113	218,782	+20.2%	Shares	Sole	2022-05-13
2021-12-31	$1,133,860	182,000	+19.0%	Shares	Sole	2022-02-14
2021-09-30	$1,077,120	153,000	+24.8%	Shares	Sole	2021-11-12
2021-06-30	$877,844	122,604	+17.7%	Shares	Sole	2021-08-06
2021-03-31	$826,187	104,185	+23.5%	Shares	Sole	2021-05-12
2020-12-31	$586,978	84,336	+26.2%	Shares	Sole	2021-02-08
2020-09-30	$487,125	66,821	-2.7%	Shares	Sole	2020-12-04
2020-06-30	$452,555	68,673	0.0%	Shares	Sole	2020-08-17
2020-03-31	$320,702	68,673	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.