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

Include option trades

Include indirect trades

Latest data: 1/29/2026 10:05:26 PM

1 Month

Buy/Sell Ratio --

%

%

Buy	Sell
--	--
0 Insiders	0 Insiders
0 Transactions	0 Transactions

12/29/2025 to 1/29/2026

3 Month

Buy/Sell Ratio --

%

%

Buy	Sell
--	--
0 Insiders	0 Insiders
0 Transactions	0 Transactions

10/29/2025 to 1/29/2026

6 Month

Buy/Sell Ratio 0.16

13%

87%

Buy	Sell
$132,750	($830,247)
1 Insiders	1 Insiders
1 Transactions	1 Transactions

7/29/2025 to 1/29/2026

12 Month

Buy/Sell Ratio 0.03

2%

98%

Buy	Sell
$173,650	($5.79) M
2 Insiders	4 Insiders
3 Transactions	7 Transactions

1/29/2025 to 1/29/2026

Monthly Buy and Sell Value

Monthly Buy/Sell Ratio

Most Insider Buying

12 months

Name	Value	Transactions
Wallman Richard F Ceco Environmental Corp	$157,900	2
Arnone Vincent J Fuel Tech, Inc.	$15,750	1

Most Insider Selling

12 months

Name	Value	Transactions
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	2

Most Unique Insiders Selling (>25K)

12 months

Name	Unique insiders	Total Trades
Ceco Environmental Corp	2	3
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	--	$0	$0	0.16	$132,750	($830,247)	0.11	$157,900	($1,478,443)
Fuel Tech, Inc.	--	$0	$0	--	$0	$0	0.75	$15,750	($21,043)
Donaldson Co Inc	--	$0	$0	--	$0	$0	0.00	$0	($4,293,366)