---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-014902"
form_type: "8-K"
ticker: "FTEK"
cik: "0000846913"
company_name: "FUEL TECH, INC."
filed_at: "2026-05-05T23:59:59+00:00"
generated_at: "2026-05-14T23:40:54.863437+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Fuel Tech Q1 net loss widens to $1.4M; revenue down 5% YoY

## Summary
- Revenue $6.1M (-5% YoY); net loss $(1.4)M ($(0.04)/share) vs $(0.7)M loss a year ago.
- Adjusted EBITDA loss $(1.3)M vs $(0.7)M; SG&A rose to 61% of revenue from 52%.
- APC segment revenue up 23% to $1.6M; gross margin 38.3%; backlog $6.9M plus $10M new awards.
- FUEL CHEM revenue $4.5M (-12% YoY); gross margin 45.3% vs 49.9% on lower sales.
- Cash & investments $30.6M, no debt; equity $38.6M ($1.24/share) at March 31, 2026.

## SEC filing metadata
- accession: 0001437749-26-014902
- form_type: 8-K
- ticker: FTEK
- cik: 0000846913
- company_name: FUEL TECH, INC.
- filed_at: 2026-05-05T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/846913/000143774926014902/0001437749-26-014902-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/846913/000143774926014902/ftek20260504_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-014902
- JSON: https://secwatch.observer/filing/0001437749-26-014902.json
- Plain text: https://secwatch.observer/filing/0001437749-26-014902.txt

## Key facts
- Earnings Releases
  FUEL TECH, INC. reported first quarter ended March 31, 2026 results: revenue $6.1 million, net income $(1.4) million, EPS $(0.04) per share.
  - Period: first quarter ended March 31, 2026
  - Revenue: $6.1 million
  - Net income: $(1.4) million
  - EPS: $(0.04) per share
  - Result: reported results
  source text: Consolidated revenues for Q1 2026 declined 5% to $6.1 million from $6.4 million
  evidence_url: https://www.sec.gov/Archives/edgar/data/846913/000143774926014902/0001437749-26-014902-index.htm

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