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

Include option trades

Include indirect trades

Latest data: 5/4/2026 10:05:48 PM

1 Month

Buy/Sell Ratio 1.33

57%

43%

Buy	Sell
$1.10 M	($830,145)
1 Insiders	1 Insiders
2 Transactions	1 Transactions

4/4/2026 to 5/4/2026

3 Month

Buy/Sell Ratio 1.34

57%

43%

Buy	Sell
$1.11 M	($830,145)
2 Insiders	1 Insiders
3 Transactions	1 Transactions

2/4/2026 to 5/4/2026

6 Month

Buy/Sell Ratio 1.34

57%

43%

Buy	Sell
$1.11 M	($830,145)
2 Insiders	1 Insiders
3 Transactions	1 Transactions

11/4/2025 to 5/4/2026

12 Month

Buy/Sell Ratio 0.14

12%

88%

Buy	Sell
$1.45 M	($10.27) M
2 Insiders	5 Insiders
6 Transactions	8 Transactions

5/4/2025 to 5/4/2026

Monthly Buy and Sell Value

Monthly Buy/Sell Ratio

Most Insider Buying

12 months

Name	Value	Transactions
Wallman Richard F Ceco Environmental Corp	$1,441,415	5
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
Jones Sharon L Fuel Tech, Inc.	($21,043)	1

Most Unique Insiders Buying (>25K)

12 months

Name	Unique insiders	Total Trades
Ceco Environmental Corp	1	5

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	1.33	$1,101,490	($830,145)	1.33	$1,101,490	($830,145)	0.24	$1,441,415	($5,958,719)
Fuel Tech, Inc.	--	$0	$0	--	$12,400	$0	0.59	$12,400	($21,043)
Donaldson Co Inc	--	$0	$0	--	$0	$0	0.00	$0	($4,293,366)