Industry - Industrial & Commercial Fans & Blowers & Air Purifing Equip

Include option trades

Include indirect trades

Latest data: 6/18/2026 10:01:40 PM

1 Month

Buy/Sell Ratio --

100%

0%

Buy	Sell
$1.54 M	--
1 Insiders	0 Insiders
1 Transactions	0 Transactions

5/18/2026 to 6/18/2026

3 Month

Buy/Sell Ratio 3.18

76%

24%

Buy	Sell
$2.64 M	($830,145)
1 Insiders	1 Insiders
3 Transactions	1 Transactions

3/18/2026 to 6/18/2026

6 Month

Buy/Sell Ratio 3.19

76%

24%

Buy	Sell
$2.65 M	($830,145)
2 Insiders	1 Insiders
4 Transactions	1 Transactions

12/18/2025 to 6/18/2026

12 Month

Buy/Sell Ratio 0.29

22%

78%

Buy	Sell
$2.99 M	($10.25) M
2 Insiders	4 Insiders
7 Transactions	7 Transactions

6/18/2025 to 6/18/2026

Monthly Buy and Sell Value

Monthly Buy/Sell Ratio

Most Insider Buying

12 months

Name	Value	Transactions
Wallman Richard F Ceco Environmental Corp	$2,978,353	6
Arnone Vincent J Fuel Tech, Inc.	$12,400	1

Most Insider Selling

12 months

Name	Value	Transactions
Dezwirek Jason Ceco Environmental Corp	($4,298,327)	2
Carpenter Tod E. Donaldson Co Inc	($4,293,366)	3
Mannarino Claudio A Ceco Environmental Corp	($830,247)	1
Nanda Munish Ceco Environmental Corp	($830,145)	1

Most Unique Insiders Buying (>25K)

12 months

Name	Unique insiders	Total Trades
Ceco Environmental Corp	1	6

Most Unique Insiders Selling (>25K)

12 months

Name	Unique insiders	Total Trades
Ceco Environmental Corp	3	4
Donaldson Co Inc	1	3

Companies with activity

	1 Month			6 Month			12 Month
Name	Ratio	Buy $	Sell $	Ratio	Buy $	Sell $	Ratio	Buy $	Sell $
Ceco Environmental Corp	--	$1,536,938	$0	3.18	$2,638,428	($830,145)	0.50	$2,978,353	($5,958,719)
Fuel Tech, Inc.	--	$0	$0	--	$12,400	$0	--	$12,400	$0
Donaldson Co Inc	--	$0	$0	--	$0	$0	0.00	$0	($4,293,366)