Fuel Tech Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 56.49. In total, the insiders bought 171.69M and sold 1.06M FTEK shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power

(Last 100 transactions)
56.49
Buy 171.69M shares
Sell 1.06M shares
79% Buy Activity
Moderate Negative Correlation
Buy Signal High Confidence
Jun 04, 2026

Analysis Breakdown:

  • Strongly supported by a very high Insider Power Score of 56.49.
  • Confidence increased due to high data reliability score of 80.
  • Supported by overwhelming buy-side pressure (79% buys).

Historical Insider Trades

Date Type Person Role Amount
Dec 23, 2020
Buy
Stock Option (Right to Buy)
M-Exempt
Zeitler Dennis L
Director
Director 27 000
Value: $42.7K
Dec 23, 2020
Buy
Common Stock
M-Exempt
Zeitler Dennis L
Director
Director 27 000
Value: $42.7K
Dec 23, 2020
Buy
Common Stock
M-Exempt
Zeitler Dennis L
Director
Director 44 000
Value: $42.5K
Dec 23, 2020
Buy
Stock Option (Right to Buy)
M-Exempt
Zeitler Dennis L
Director
Director 44 000
Value: $42.5K
Dec 23, 2020
Sell
Common Stock
S-Sale
Zeitler Dennis L
Director
Director 71 000
Value: $349.2K
Dec 23, 2020
Sell
Common Stock
S-Sale
Zeitler Dennis L
Director
Director 71 000
Value: $349.2K
Dec 23, 2020
Buy
Stock Option (Right to Buy)
M-Exempt
Zeitler Dennis L
Director
Director 44 000
Value: $42.5K
Dec 23, 2020
Buy
Common Stock
M-Exempt
Zeitler Dennis L
Director
Director 44 000
Value: $42.5K
Dec 23, 2020
Buy
Common Stock
M-Exempt
Zeitler Dennis L
Director
Director 27 000
Value: $42.7K
Dec 23, 2020
Buy
Stock Option (Right to Buy)
M-Exempt
Zeitler Dennis L
Director
Director 27 000
Value: $42.7K
Dec 23, 2020
Sell
Common Stock
S-Sale
Arnone Vincent J
President & CEO
CEO / President 75 000
Value: $376.0K
Dec 23, 2020
Sell
Common Stock
S-Sale
Albrecht Ellen T
Acting Pfo And Treasurer
Officer 41 900
Value: $209.5K
Dec 23, 2020
Sell
Common Stock
S-Sale
Albrecht Ellen T
Acting Pfo And Treasurer
Officer 41 900
Value: $209.5K
Dec 23, 2020
Sell
Common Stock
S-Sale
Arnone Vincent J
President & CEO
CEO / President 75 000
Value: $376.0K
Dec 22, 2020
Sell
Common Stock
S-Sale
Arnone Vincent J
President & CEO
CEO / President 125 000
Value: $531.0K
Dec 22, 2020
Sell
Common Stock
S-Sale
Albrecht Ellen T
Acting Pfo And Treasurer
Officer 30 000
Value: $127.8K
Dec 22, 2020
Sell
Common Stock
S-Sale
Albrecht Ellen T
Acting Pfo And Treasurer
Officer 30 000
Value: $127.8K
Dec 22, 2020
Sell
Common Stock
S-Sale
Arnone Vincent J
President & CEO
CEO / President 125 000
Value: $531.0K
Dec 02, 2020
Sell
Common Stock
S-Sale
Markowsky James J
Director
Director 20 000
Value: $68.8K
Dec 02, 2020
Sell
Common Stock
S-Sale
Markowsky James J
Director
Director 30 000
Value: $101.1K
Dec 02, 2020
Sell
Common Stock
S-Sale
Markowsky James J
Director
Director 30 000
Value: $101.1K
Dec 02, 2020
Sell
Common Stock
S-Sale
Markowsky James J
Director
Director 20 000
Value: $68.8K
Nov 25, 2020
Sell
Common Stock
S-Sale
Bailey Bettye J
10 Percent Owner
10% Owner 42 028
Value: $199.2K
Nov 25, 2020
Sell
Common Stock
S-Sale
Bailey Bettye J
10 Percent Owner
10% Owner 42 028
Value: $199.2K
Nov 24, 2020
Sell
Common Stock
S-Sale
Bailey Douglas G
Director
Director 76 944
Value: $449.3K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

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ABOUT FUEL TECH
Fuel Tech
Fuel Tech, Inc. provides boiler optimization, efficiency improvement, and air pollution reduction and control solutions to utility and industrial customers worldwide. It operates through two segments, Air Pollution Control Technology and FUEL CHEM Technology. The Air Pollution Control Technology segment offers technologies to reduce nitrogen oxide (NOx) emissions in flue gas from boilers, incinerators, furnaces, and other stationary combustion so...
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