---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-122295"
form_type: "8-K"
ticker: "FCEL"
cik: "0000886128"
company_name: "FUELCELL ENERGY INC"
filed_at: "2025-12-18T23:59:59+00:00"
generated_at: "2026-05-16T12:50:58.790302+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# FuelCell Energy Q4 revenue up 12% to $55M; FY revenue $158M (+41%); net loss narrows

## Summary
- Q4 revenue $55.0M (+12% YoY); gross loss improved to $(6.6)M from $(10.9)M.
- Q4 net loss per share $(0.85) vs $(2.21) YoY; adjusted EBITDA $(17.7)M vs $(25.3)M.
- FY 2025 revenue $158.2M (+41%); net loss per share $(7.42) vs $(7.83) prior year.
- Backlog $1.19B (+2.6% YoY); unrestricted cash $278.1M at year-end.
- Company prioritizing data center market; $64.5M impairment in Q3 from restructuring.

## SEC filing metadata
- accession: 0001104659-25-122295
- form_type: 8-K
- ticker: FCEL
- cik: 0000886128
- company_name: FUELCELL ENERGY INC
- filed_at: 2025-12-18T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/886128/000110465925122295/0001104659-25-122295-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/886128/000110465925122295/fcel-20251218x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-122295
- JSON: https://secwatch.observer/filing/0001104659-25-122295.json
- Plain text: https://secwatch.observer/filing/0001104659-25-122295.txt

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