---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-034367"
form_type: "8-K"
ticker: "EOSE"
cik: "0001805077"
company_name: "Eos Energy Enterprises, Inc."
filed_at: "2026-05-13T10:36:59+00:00"
generated_at: "2026-05-13T10:41:31.544303+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Eos forms $250M JV with Cerberus for LDES IPP; Q1 rev $57M, guides FY $300-400M

## Summary
- Cerberus commits $100M equity for 50%+ governance; Eos targets $150M via rights offering.
- JV (Frontier Power USA) to develop/own/operate LDES projects using Eos Z3 tech; 2 GWh capacity reservation signed.
- Q1 revenue $57.0M (+445% YoY); gross loss $44.4M; net income $508.9M (non-cash mark-to-market).
- Adjusted EBITDA loss $68.0M; cash $472.4M; backlog $644.6M (2.6 GWh); pipeline $24.3B.
- FY2026 revenue reaffirmed $300-400M; second battery line on schedule for Q2 initial production.

## SEC filing metadata
- accession: 0001628280-26-034367
- form_type: 8-K
- ticker: EOSE
- cik: 0001805077
- company_name: Eos Energy Enterprises, Inc.
- filed_at: 2026-05-13T10:36:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 2.02, 3.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1805077/000162828026034367/0001628280-26-034367-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1805077/000162828026034367/eose-20260512.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-034367
- JSON: https://secwatch.observer/filing/0001628280-26-034367.json
- Plain text: https://secwatch.observer/filing/0001628280-26-034367.txt

## Key facts
- Earnings Releases
  Eos Energy Enterprises, Inc. reported first quarter ended March 31, 2026 results: revenue $57.0 million, net income $508.9 million. Guidance reaffirmed.
  - Period: first quarter ended March 31, 2026
  - Revenue: $57.0 million
  - Net income: $508.9 million
  - Guidance: reaffirmed
  - Result: reported results
  source text: today announced its financial results for the first quarter ended March 31, 2026. First Quarter Highlights • Revenue totaled $57.0 million
  evidence_url: https://www.sec.gov/Archives/edgar/data/1805077/000162828026034367/0001628280-26-034367-index.htm

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