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

Include option trades

Include indirect trades

Latest data: 3/20/2026 10:04:43 PM

1 Month

Buy/Sell Ratio --

100%

0%

Buy	Sell
$12,400	--
1 Insiders	0 Insiders
1 Transactions	0 Transactions

2/20/2026 to 3/20/2026

3 Month

Buy/Sell Ratio --

100%

0%

Buy	Sell
$12,400	--
1 Insiders	0 Insiders
1 Transactions	0 Transactions

12/20/2025 to 3/20/2026

6 Month

Buy/Sell Ratio --

100%

0%

Buy	Sell
$12,400	--
1 Insiders	0 Insiders
1 Transactions	0 Transactions

9/20/2025 to 3/20/2026

12 Month

Buy/Sell Ratio 0.04

3%

97%

Buy	Sell
$368,075	($10.09) M
2 Insiders	5 Insiders
5 Transactions	9 Transactions

3/20/2025 to 3/20/2026

Monthly Buy and Sell Value

Monthly Buy/Sell Ratio

Most Insider Buying

12 months

Name	Value	Transactions
Wallman Richard F Ceco Environmental Corp	$339,925	3
Arnone Vincent J Fuel Tech, Inc.	$28,150	2

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
Johansson Peter K. Ceco Environmental Corp	($648,197)	2
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	3

Most Unique Insiders Selling (>25K)

12 months

Name	Unique insiders	Total Trades
Ceco Environmental Corp	3	5
Donaldson Co Inc	1	3

Companies with activity

	1 Month			6 Month			12 Month
Name	Ratio	Buy $	Sell $	Ratio	Buy $	Sell $	Ratio	Buy $	Sell $
Fuel Tech, Inc.	--	$12,400	$0	--	$12,400	$0	1.34	$28,150	($21,043)
Ceco Environmental Corp	--	$0	$0	--	$0	$0	0.06	$339,925	($5,776,770)
Donaldson Co Inc	--	$0	$0	--	$0	$0	0.00	$0	($4,293,366)