---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-011958"
form_type: "8-K"
ticker: "EOSE"
cik: "0001805077"
company_name: "Eos Energy Enterprises, Inc."
filed_at: "2026-02-26T23:59:59+00:00"
generated_at: "2026-05-15T23:44:41.815382+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Eos Energy Q4 revenue $58M record, 8x YoY; initiates FY2026 guidance $300-400M

## Summary
- Q4 revenue $58.0M (record), up 90% QoQ, ~8x YoY; full year revenue $114.2M, >7x 2024.
- Cash balance $624.6M after $580.5M convertible note and $458.2M stock offering; retired $200M of 2030 notes.
- Order backlog $701.5M (2.8 GWh), up 9% sequential; launched Indensity architecture targeting 1 GWh/acre.
- 2026 revenue guidance $300M-400M; substantial doubt about going concern removed.
- Q4 net loss $120.5M; adjusted EBITDA loss $71.5M; margins improved YoY significantly.

## SEC filing metadata
- accession: 0001628280-26-011958
- form_type: 8-K
- ticker: EOSE
- cik: 0001805077
- company_name: Eos Energy Enterprises, Inc.
- filed_at: 2026-02-26T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- 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/1805077/000162828026011958/0001628280-26-011958-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1805077/000162828026011958/eose-20260226.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-011958
- JSON: https://secwatch.observer/filing/0001628280-26-011958.json
- Plain text: https://secwatch.observer/filing/0001628280-26-011958.txt

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