Fuel Tech, Inc.
FTEK- Exchange
- Nasdaq
- Industry
- Industrial & Commercial Fans & Blowers & Air Purifing Equip
- SEC CIK
- 0000846913
In the last 90 days, Fuel Tech, Inc. insiders filed 1 open-market purchase and 0 sales; 43 institutions reported holding it in 13F filings for Q2 2026, worth $16.3M in total; no superinvestor holds it.
Holders of 5% or more of FTEK
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Fuel Tech, Inc., largest stake first. The change is against the holder's previous filing.
No holder currently reports owning 5% or more of Fuel Tech, Inc. on Schedule 13D or 13G.
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
2 Schedule 13D and 13G filings on Fuel Tech, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 3, 20255:27 PM ET | Grace & White Inc | 13G/A | 4.78%1.49M shares | −1.45 ppfrom 6.23%Below 5% | Oct 31, 2025 | SEC |
| Feb 5, 20254:52 PM ET | Grace & White Inc | 13G/A | 6.23%1.91M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Fuel Tech, Inc. shares.
No Form 144 notices for Fuel Tech, Inc. are on file.