---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-025707"
form_type: "8-K"
ticker: "FTEK"
cik: "0000846913"
company_name: "FUEL TECH, INC."
filed_at: "2026-08-04T21:01:13+00:00"
generated_at: "2026-08-04T21:02:27.206486+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Fuel Tech Q2 2026 net loss widens to $1.2M; CEO Vincent Arnone to be succeeded by Ramesh Nuggihalli

## Summary
- Q2 2026 revenue $6.5M (+17% YoY); net loss $(1.2)M vs $(0.7)M; EPS $(0.04) vs $(0.02).
- APC segment revenue $2.8M (+11%), backlog $14.3M (double Dec 2025); FUEL CHEM revenue $3.7M (+21%).
- CEO Vincent Arnone to step down; Ramesh Nuggihalli named President and CEO effective Aug 10, 2026; Arnone remains on Board.
- Cash and investments $30M, no debt; stockholders' equity $37.4M ($1.20/share).
- Adjusted EBITDA loss $(1.2)M vs $(0.9)M; gross margin declined to 41% from 46%.

## SEC filing metadata
- accession: 0001437749-26-025707
- form_type: 8-K
- ticker: FTEK
- cik: 0000846913
- company_name: FUEL TECH, INC.
- filed_at: 2026-08-04T21:01:13+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/846913/000143774926025707/0001437749-26-025707-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/846913/000143774926025707/ftek20260727_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-025707
- JSON: https://secwatch.observer/filing/0001437749-26-025707.json
- Plain text: https://secwatch.observer/filing/0001437749-26-025707.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.