Vincent J. Arnone's departure as Chairman of the Board of Fuel Tech, Inc. was reported, effective August 27, 2026; the filing names no successor. As of November 6, 2026, Fuel Tech, Inc. has reported 2 leadership change filings to the SEC under Item 5.02 of Form 8-K, from August 4, 2026 to September 2, 2026, naming 1 appointment and 2 departures (Form 8-K, September 2, 2026).
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Fuel Tech, Inc. reported changes in 2 filings among its directors and officers to the SEC on Form 8-K, Item 5.02, from 2026-08-04 to 2026-09-02. They name 2 people, with 1 appointment and 2 departures. Every row below is cited to the filing it comes from, and this page adds each new change as Fuel Tech, Inc. files it.
Also on the record for Fuel Tech, Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| October 7, 2026 | Stake report, Schedule 13G/A, by Grace & White, Inc. | 4.94% of the class | 5%+ stakes | Source |
| April 6, 2026 | Stake report, Schedule 13G/A, by Grace & White, Inc. | 5.02% of the class | 5%+ stakes | Source |
| November 3, 2025 | Stake report, Schedule 13G/A, by Grace & White, Inc. | 4.78% of the class | 5%+ stakes | Source |
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Fuel Tech, Inc. elsewhere on the record
Companies that share a holder
- Grace & White, Inc. also filed stake reports on 4 other companies: WESTPORT FUEL SYSTEMS INC. (Jan 2026), Orion Energy Systems, Inc. (Jan 2026)
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Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-09-02 | Out | Chairman of the Board | 2026-08-27 | 8-K, 2026-09-02 | |
| 2026-08-04 | Out | Chief Executive Officer | 2026-07-31 | 8-K, 2026-08-04 | |
| 2026-08-04 | In | Chief Executive Officer | 2026-08-10 | 8-K, 2026-08-04 |
Who leads Fuel Tech, Inc., as last reported?
For each role that changed in the filings below, the most recent change reported. A role that did not change in these filings is not listed.
- Chairman of the Board: Vincent J. Arnone, departure reported, effective 2026-08-27 (filed 2026-09-02). No successor is named in these filings.
- Chief Executive Officer: Ramesh Nuggihalli, appointed, effective 2026-08-10 (filed 2026-08-04).
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Find candidates like Chairman of the Board at Fuel Tech, Inc.Every change, in the filing's words
Departing: Vincent J. Arnone, Chairman of the Board, effective 2026-08-27
(b) Resignation of Chairman of the Board Effective as of August 27, 2026, Vincent J. Arnone notified Fuel Tech, Inc. (the "Company") of his decision to resign from his position as Chairman of the Board of Directors (the "Board"), effective on September 15, 2026.
- Mr. Arnone will continue to serve as a member of the Board.
- Mr. Arnone's decision to step down as Chairman is not the result of any disagreement with the Company, its management, or the Board on any matter relating to the Company's operations, policies, or practices.
- (d) Election of Chairman of the Board On August 27, 2026, the Board elected Sharon L. Jones, an existing independent member of the Board, to succeed Mr. Arnone as Chairman of the Board, effective September 16, 2026.
Departing: Vincent J. Arnone, Chief Executive Officer, effective 2026-07-31
(b) Resignation of Chief Executive Officer and President Effective as of July 31, 2026 , Vincent J. Arnone notified Fuel Tech, Inc. (the "Company") of his decision to retire and resign from his positions as Chief Executive Officer and President of the Company, effective August 10, 2026.
Appointed: Ramesh Nuggihalli, Chief Executive Officer, effective 2026-08-10
(c) Appointment of Certain Officers On July 31, 2026, the Board of Directors (the "Board") of the Company appointed Ramesh Nuggihalli as Chief Executive Officer and President of the Company, effective August 10, 2026.
- Mr. Arnone will continue to serve as a member of the Company's Board of Directors.
- Mr. Arnone's decision to retire from his executive positions is not the result of any disagreement with the Company, its management, or the Board of Directors on any matter relating to the Company's operations, policies, or practices.
- To ensure a seamless executive transition, Mr. Arnone will remain with the Company as an employee until September 15, 2026 to enable a transition period to assist the Company's incoming Chief Executive Officer, following the August 10, 2026 resignation date.
- Mr. Nuggihalli's selection was the result of a thorough, months-long executive search process conducted by the Board, which involved the evaluation and interviewing of multiple qualified candidates.
- Prior to joining Fuel Tech, Mr. Nuggihalli served as President and Chief Operating Officer of CECO Environmental, where he led the global business units.
- Earlier, he was Managing Director of Xylem Asia, based in Singapore, where he led the company's water business across Asia.
- Before joining Xylem, he served as Managing Director of Pentair Middle East, based in Dubai, where he led the company's energy and water businesses across the region.
- Earlier in his career, he held executive leadership roles with Tyco, AMETEK, General Electric (Power Division), Babcock & Wilcox, and SNC-Lavalin.
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Where this comes from
A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.
Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.