Company filings profile · CIK 0000846913
FUEL TECH, INC. — SEC filings & insider activity.
Real, source-linked SEC EDGAR activity for FUEL TECH, INC. (FTEK): 7 filings in the last 90 days vs 12 in the prior 90 (filing-velocity cooling ↓ · 0.58×). Latest material 8-K events, insider Form-4 transactions, and periodic reports — monitored for change.
✔ Verified against the public SEC EDGAR filing record as of Sep 19, 2026. Source-linked, daily-refreshed.
Material 8-K events — FUEL TECH, INC.
8-K disclosures decoded by item code (the material events: agreements, results, control/management changes, impairments, restatements).
| Filed | Event | |
|---|---|---|
| Sep 18, 2026 | Regulation FD Disclosure; Financial Statements and Exhibits | ↗ |
| Sep 2, 2026 | Departure/Election of Directors or Officers | ↗ |
| Aug 4, 2026 | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Aug 4, 2026 | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
| Jun 8, 2026 | Item 5.07 | ↗ |
| May 5, 2026 | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Mar 27, 2026 | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
| Mar 3, 2026 | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Dec 12, 2025 | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
| Nov 4, 2025 | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Aug 5, 2025 | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Jun 10, 2025 | Item 5.07 | ↗ |
| May 22, 2025 | Regulation FD Disclosure; Financial Statements and Exhibits | ↗ |
| May 12, 2025 | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Apr 2, 2025 | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
Watch FUEL TECH, INC. automatically
Add this company to a watchlist and get a webhook/email the moment it files a material 8-K, an insider Form 4, or changes its risk-factor language.
Insider transactions (Form 4 / 3 / 5)
Recent filings
| Filed | Form | Detail | |
|---|---|---|---|
| Sep 18, 2026 | 8-K | Regulation FD Disclosure; Financial Statements and Exhibits | ↗ |
| Sep 3, 2026 | 4 | FORM 4 | ↗ |
| Sep 2, 2026 | 8-K | Departure/Election of Directors or Officers | ↗ |
| Aug 19, 2026 | 3 | FORM 3 | ↗ |
| Aug 4, 2026 | 10-Q | FORM 10-Q | ↗ |
| Aug 4, 2026 | 8-K | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Aug 4, 2026 | 8-K | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
| Jun 8, 2026 | 8-K | Item 5.07 | ↗ |
| Jun 5, 2026 | 4 | FORM 4 | ↗ |
| Jun 5, 2026 | 4 | FORM 4 | ↗ |
| Jun 5, 2026 | 4 | FORM 4 | ↗ |
| May 5, 2026 | 10-Q | FORM 10-Q | ↗ |
| May 5, 2026 | 8-K | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Apr 13, 2026 | DEF 14A | FORM DEF 14A | ↗ |
| Apr 6, 2026 | SCHEDULE 13G/A | ↗ | |
| Mar 27, 2026 | 8-K | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
| Mar 27, 2026 | 4 | FORM 4 | ↗ |
| Mar 27, 2026 | 4 | FORM 4 | ↗ |
| Mar 27, 2026 | 4 | FORM 4 | ↗ |
| Mar 9, 2026 | 4 | FORM 4 | ↗ |
| Mar 3, 2026 | 10-K | FORM 10-K | ↗ |
| Mar 3, 2026 | 8-K | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Dec 12, 2025 | 8-K | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
| Nov 4, 2025 | 10-Q | FORM 10-Q | ↗ |
| Nov 4, 2025 | 8-K | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Nov 3, 2025 | SCHEDULE 13G/A | ↗ | |
| Aug 5, 2025 | 10-Q | FORM 10-Q | ↗ |
| Aug 5, 2025 | 8-K | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Jun 10, 2025 | 8-K | Item 5.07 | ↗ |
| Jun 6, 2025 | 4 | FORM 4 | ↗ |
| Jun 6, 2025 | 4 | FORM 4 | ↗ |
| Jun 6, 2025 | 4 | FORM 4 | ↗ |
| Jun 4, 2025 | 144 | ↗ | |
| May 22, 2025 | 8-K | Regulation FD Disclosure; Financial Statements and Exhibits | ↗ |
| May 12, 2025 | 10-Q | FORM 10-Q | ↗ |
| May 12, 2025 | 8-K | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Apr 21, 2025 | DEF 14A | FORM DEF 14A | ↗ |
| Apr 2, 2025 | 8-K | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
| Apr 2, 2025 | S-8 POS | FORM S-8 POS | ↗ |
| Apr 2, 2025 | S-8 | FORM S-8 | ↗ |