Fuel Tech Inc

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Fuel Tech Inc
TickerFTEK
CIK #0000846913
CUSIP359523107
SectorTechnology - Industrial & Commercial Fans & Blowers & Air Purifing Equip
Address27601 Bella Vista Parkway, Warrenville, IL 60555
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Fuel Tech Inc 2021-02-26 25.8 M Exemption: 506(b) · Remaining: $15,008,594 · Duration: One year or less · Commission: $1,677,812 · Revenue: $5,000,001 - $25,000,000
CIK Filing 2011 - 2026
[0000846913] 10-K
[0000846913] 10-Q
[0000846913] 3
[0000846913] 4
[0000846913] 5
[0000846913] 8-K
[0000846913] D
[0000846913] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Grace & White Inc /NY Fuel Tech Inc [2022-01-10] 11.0
Renaissance Technologies LLC Fuel Tech Inc [2021-02-10] 5.94
Grace & White Inc /NY Fuel Tech Inc [2018-02-01] 11.0
Form 3/4/5 Filer 2011 - 2026
Zeitler Dennis L
Fuel Tech Inc
Bailey Douglas G
Jones Sharon L
Arnone Vincent J
Cummings William E JR
Albrecht Ellen T
Bailey Bettye J
Markowsky James J
Pach James M
Shaw Thomas S
Collins David S
Gregory W Grant
Bettye J Bailey GRAT A-2015 u/a/D March 27 2015
Espinosa Miguel
Maccormack George F
Williamson Delbert L
Bailey Ralph E
Puissant Robert E
Jones Thomas L
Smith Robert T
Ringel Karen L
Grinnell Charles W
Joyce Cinda
Petrak Michael F
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Albrecht Ellen T
Restricted Stock Units · derivative
2026-03-24 Grant 8,350 $0.00
Arnone Vincent J
Restricted Stock Units · derivative
2026-03-24 Grant 20,850 $0.00
Cummings William E JR
Restricted Stock Units · derivative
2026-03-24 Grant 6,250 $0.00
Arnone Vincent J
Common Stock
2026-03-06 Buy 10,000 $1.24 12,400
Jones Sharon L
Restricted Stock Units · derivative
2025-06-04 Grant 15,000 $0.00
Jones Sharon L
Common Stock
2025-06-04 Sell 12,627 $1.67 21,087
Bailey Douglas G
Restricted Stock Units · derivative
2025-06-04 Grant 15,000 $0.00
Zeitler Dennis L
Restricted Stock Units · derivative
2025-06-04 Grant 15,000 $0.00
Arnone Vincent J
Common Stock
2025-03-28 Buy 15,000 $1.05 15,750
Jones Sharon L
Common Stock
2024-11-19 Buy 8,014.40 $1.08 8,656
Jones Sharon L
Common Stock
2024-11-18 Buy 9,800 $1.05 10,290
Jones Sharon L
Common Stock
2024-11-15 Buy 4,200 $1.05 4,410
Jones Sharon L
Common Stock
2024-11-14 Buy 7,200 $1.04 7,488
Jones Sharon L
Common Stock
2024-11-13 Buy 9,100 $1.05 9,555
Jones Sharon L
Common Stock
2024-11-12 Buy 9,500 $1.02 9,690
Albrecht Ellen T
Common Stock
2024-09-12 Buy 5,000 $1.01 5,050
Arnone Vincent J
Common Stock
2024-09-12 Buy 20,000 $1.02 20,400
Jones Sharon L
Common Stock
2024-08-28 Buy 3,293 $1.01 3,326
Jones Sharon L
Common Stock
2024-08-12 Buy 447.17 $1.01 452
Arnone Vincent J
Common Stock
2024-08-09 Buy 20,000 $1.04 20,800
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 46 7,576,988
2025-12-31 45 7,653,108
2025-09-30 49 7,422,195
2025-06-30 37 6,276,916
2025-03-31 38 6,773,566
2024-12-31 40 7,029,174
2024-09-30 37 6,488,548
2024-06-30 36 6,207,177
2024-03-31 34 6,378,791
2023-12-31 38 6,743,317
2023-09-30 39 6,024,639
2023-06-30 42 6,155,923
Form 13F Holdings
Firm Period DFND Voting Shares
Grace & White Inc /NY [2026-06-30] SOLE 447,860 1,541,307
Marquette Asset Management LLC [2026-06-30] SOLE 0 110,509
Lexaurum Advisors LLC [2026-06-30] SOLE 0 20,160
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