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

  1. All Sectors
  2. Manufacturing
  3. Industrial Machinery & Computers
Latest data: 6/18/2026 10:01:40 PM
1 Month
Buy/Sell Ratio --
%
%
Buy Sell
-- --
0 Insiders 0 Insiders
0 Transactions 0 Transactions
5/18/2026 to 6/18/2026
3 Month
Buy/Sell Ratio 0.88
46%
54%
Buy Sell
$732,500 ($830,145)
1 Insiders 1 Insiders
1 Transactions 1 Transactions
3/18/2026 to 6/18/2026
6 Month
Buy/Sell Ratio 0.90
47%
53%
Buy Sell
$744,900 ($830,145)
2 Insiders 1 Insiders
2 Transactions 1 Transactions
12/18/2025 to 6/18/2026
12 Month
Buy/Sell Ratio 0.15
12%
88%
Buy Sell
$877,650 ($5.95) M
2 Insiders 3 Insiders
3 Transactions 5 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
Ceco Environmental Corp
$865,250 2
Fuel Tech, Inc.
$12,400 1

Most Insider Selling

12 months
Name Value Transactions
Donaldson Co Inc
($4,293,366) 3
Ceco Environmental Corp
($830,247) 1
Ceco Environmental Corp
($830,145) 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 2
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 0.88 $732,500 ($830,145) 0.52 $865,250 ($1,660,392)
Fuel Tech, Inc. -- $0 $0 -- $12,400 $0 -- $12,400 $0
Donaldson Co Inc -- $0 $0 -- $0 $0 0.00 $0 ($4,293,366)