Form4insider filings, from the source

SEC Form 4 · accession 0001437749-26-019744

FUEL TECH, INC. · FTEK

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
Period of report
Jun 4, 2026
Accepted (ET)
Jun 5, 2026 · 4:12 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000846913

Table I — non-derivative securities

No Table I lines on this filing.

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Restricted Stock UnitsF1,F2—Jun 4, 2026A15,000A——Common Stock15,00015,000D

Explanation of responses