CHARLES SCHWAB INVESTMENT MANAGEMENT INC

Position in CECO — Ceco Environmental Corp

CIK 884546 SAN FRANCISCO, CA

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Position in CECO

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

Position Value

$14,745,990

-$439,511 QoQ

Shares Held

247,499

-2.5% QoQ

Ownership

0.690%

of shares outstanding

% of Portfolio

0.00%

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")%

Common Shares in CECO Over Time

Shares Held

Position Value (USD)

Position in Pollution & Treatment Controls

Industrials · as of Mar 31, 2026

CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $260,025,688 across 6 Pollution & Treatment Controls names. CECO ranks #3 (5.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VLTO	Veralto Corp	1,603,336	$141,766,969
2	ZWS	Zurn Elkay Water Solutions Corp	2,085,932	$93,533,190
3	CECO	Ceco Environmental Corp This page	247,499	$14,745,990
4	PCT	PureCycle Technologies, Inc.	1,051,608	$5,457,845
5	ERII	Energy Recovery, Inc.	431,288	$4,343,070
6	ARQ	Arq, Inc.	69,775	$178,624

All Filings in CECO

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$14,745,990	247,499	-2.5%	Shares	Sole	2026-05-15
2025-12-31	$15,185,501	253,726	+1.5%	Shares	Sole	2026-02-13
2025-09-30	$12,800,460	250,009	+4.7%	Shares	Sole	2025-11-10
2025-06-30	$6,761,532	238,839	+2.7%	Shares	Sole	2025-08-12
2025-03-31	$5,301,820	232,536	-2.1%	Shares	Sole	2025-09-15
2024-12-31	$7,178,536	237,464	+0.8%	Shares	Sole	2025-02-06
2024-09-30	$6,641,015	235,497	+185.1%	Shares	Sole	2024-11-12
2024-06-30	$2,383,125	82,604	+4.2%	Shares	Sole	2024-08-12
2024-03-31	$1,824,473	79,256	-3.3%	Shares	Sole	2024-05-09
2023-12-31	$1,661,601	81,933	0.0%	Shares	Sole	2024-02-06
2023-09-30	$1,308,470	81,933	+2.0%	Shares	Sole	2023-11-08
2023-06-30	$1,073,021	80,316	+546.1%	Shares	Sole	2023-08-10
2023-03-31	$173,895	12,430	+21.4%	Shares	Sole	2023-05-12
2022-12-31	$119,568	10,237	-27.9%	Shares	Sole	2023-02-13
2022-09-30	$125,581	14,190	0.0%	Shares	Sole	2022-11-14
2022-06-30	$84,856	14,190	-82.9%	Shares	Sole	2022-08-15
2022-03-31	$456,537	83,158	0.0%	Shares	Sole	2022-05-13
2021-12-31	$518,074	83,158	+5.6%	Shares	Sole	2022-02-11
2021-09-30	$554,357	78,744	-0.1%	Shares	Sole	2021-11-16
2021-06-30	$564,501	78,841	-0.4%	Shares	Sole	2021-08-16
2021-03-31	$627,921	79,183	+6.6%	Shares	Sole	2021-05-17
2020-12-31	$517,065	74,291	0.0%	Shares	Sole	2021-02-16
2020-09-30	$541,581	74,291	-3.7%	Shares	Sole	2020-11-13
2020-06-30	$508,523	77,166	+4.1%	Shares	Sole	2020-08-20
2020-03-31	$346,145	74,121	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.