Form 4 for CECO CECO ENVIRONMENTAL CORP

Accepted 2025-08-01 00:00:00 ET · period of report 2025-07-30 · accession 0000950170-25-101211 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
M	2025-08-01	2025-07-30	CECO	Mannarino Claudio A	Dir	S - Sale	$41.51	-20.0K	89.8K	-18%	-$830.3K

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2025-07-30	S	D	440	$40.41	77,589	D	—	—	(F3) Price reflects the weighted average sale price for multiple transactions that ranged from $40.41 to $41.42 per share. The Reporting Person undertakes to provide, upon request by the Commission Staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.
2	Common	Common Stock	2025-07-30	S	D	11,801	$41.25	78,029	D	—	—	(F2) Price reflects the weighted average sale price for multiple transactions that ranged from $40.56 to $41.53 per share. The Reporting Person undertakes to provide, upon request by the Commission Staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.
3	Common	Common Stock	2025-07-30	S	D	7,759	$41.98	89,830	D	—	—	(F1) Price reflects the weighted average sale price for multiple transactions that ranged from $41.54 to $42.54 per share. The Reporting Person undertakes to provide, upon request by the Commission Staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.