INSIDER
DRIFT
Home
Latest Filings
All Sectors
Index List
Loading...
Industry - Industrial & Commercial Fans & Blowers & Air Purifing Equip
Officers
Directors
Officer & Directors
10 Percent
All
All Sectors
Manufacturing
Industrial Machinery & Computers
Include option trades
Include indirect trades
Latest data: 5/1/2026 10:07:44 PM
1 Month
Buy/Sell Ratio --
100%
0%
Buy
Sell
$732,500
--
1 Insiders
0 Insiders
1 Transactions
0 Transactions
4/1/2026 to 5/1/2026
3 Month
Buy/Sell Ratio --
100%
0%
Buy
Sell
$744,900
--
2 Insiders
0 Insiders
2 Transactions
0 Transactions
2/1/2026 to 5/1/2026
6 Month
Buy/Sell Ratio --
100%
0%
Buy
Sell
$744,900
--
2 Insiders
0 Insiders
2 Transactions
0 Transactions
11/1/2025 to 5/1/2026
12 Month
Buy/Sell Ratio 0.17
14%
86%
Buy
Sell
$877,650
($5.14) M
2 Insiders
3 Insiders
3 Transactions
5 Transactions
5/1/2025 to 5/1/2026
Monthly Buy and Sell Value
Monthly Buy/Sell Ratio
Most Insider Buying
12 months
Name
Value
Transactions
Wallman Richard F
Ceco Environmental Corp
$865,250
2
Arnone Vincent J
Fuel Tech, Inc.
$12,400
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
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
Donaldson Co Inc
1
3
Ceco Environmental Corp
1
1
Companies with activity
1 Month
6 Month
12 Month
Name
Ratio
Buy $
Sell $
Ratio
Buy $
Sell $
Ratio
Buy $
Sell $
Ceco Environmental Corp
--
$732,500
$0
--
$732,500
$0
1.04
$865,250
($830,247)
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)