Vincent J. Arnone - 24 Mar 2026 Form 4 Insider Report for FUEL TECH, INC. (FTEK)

Reporting relationship: President & CEO, Director
Issuer ticker: FTEK
Reported as of: 24 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 27 Mar 2026, 16:03:07 UTC
Prior SEC filing: 09 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Vincent J. Arnone

Key filing fact

Vincent J. Arnone filed Form 4 for FUEL TECH, INC. (FTEK) on 27 Mar 2026.

Key facts

This page summarizes Vincent J. Arnone's Form 4 filing for FUEL TECH, INC. (FTEK).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 27 Mar 2026, 16:03.

Change

Previous filing in this sequence was filed on 09 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001272727 Primary reporting owner

ARNONE VINCENT J

Relationship: President & CEO, Director
Address: 27601 BELLA VISTA PARKWAY, WARRENVILLE
Signature: /s/ Vincent J. Arnone
Signature date: 27 Mar 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

FTEK transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +20,850
Change %
Price: $0.000000^*
Shares after: 20,850
Date: 24 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 20,850
Exercise price
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Each Restricted Stock Unit represents a contingent right to receive one stock of FTEK Common Stock.

Footnote F2

The Restricted Stock Units vest in three installments: (i) one-third of the total RSUs awarded shall vest on the one year anniversary after the transaction date shown above, (ii) one-third shall vest on the second anniversary of the transaction date shown above, and (iii) one-third shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date.