<SEC-DOCUMENT>0001558370-25-004650-index.html : 20250410
<SEC-HEADER>0001558370-25-004650.hdr.sgml : 20250410
<ACCEPTANCE-DATETIME>20250410080516
ACCESSION NUMBER:		0001558370-25-004650
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20250410
DATE AS OF CHANGE:		20250410

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CECO ENVIRONMENTAL CORP
		CENTRAL INDEX KEY:			0000003197
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFYING EQUIP [3564]
		ORGANIZATION NAME:           	06 Technology
		EIN:				132566064
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-07099
		FILM NUMBER:		25826546

	BUSINESS ADDRESS:	
		STREET 1:		5080 SPECTRUM DRIVE
		STREET 2:		SUITE 800E
		CITY:			ADDISON
		STATE:			TX
		ZIP:			75001
		BUSINESS PHONE:		(513) 458-2600

	MAIL ADDRESS:	
		STREET 1:		5080 SPECTRUM DRIVE
		STREET 2:		SUITE 800E
		CITY:			ADDISON
		STATE:			TX
		ZIP:			75001

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	API ENTERPRISES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALARM PRODUCTS INTERNATIONAL INC
		DATE OF NAME CHANGE:	19851210
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>ceco-20250410xdefa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: ceco-20250410xdefa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>ceco-20250410xdefa14a_a003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: ceco-20250410xdefa14a_a003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>ceco-20250410xdefa14a_bg001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: ceco-20250410xdefa14a_bg001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>ceco-20250410xdefa14a_bg002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: ceco-20250410xdefa14a_bg002.jpg

</DOCUMENT>
</SEC-DOCUMENT>