---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-024345"
form_type: "8-K"
ticker: "EOSE"
cik: "0001805077"
company_name: "Eos Energy Enterprises, Inc."
filed_at: "2026-04-09T23:59:59+00:00"
generated_at: "2026-05-15T06:48:31.591005+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Eos Energy reports preliminary Q1 revenue $56-57M; record shipments up 17% QoQ

## Summary
- Preliminary Q1 2026 revenue expected $56-57M; record quarterly shipments increased 17% QoQ.
- Record quarterly battery output up 10.4% QoQ; bipolar output up 10.6% QoQ; automation yields improved 22% sequentially.
- Second production line completed Factory Acceptance Testing; initial production targeted end of Q2 2026.
- New executives: Erik Todd as EVP Sales, Cristi Thomas as SVP Projects & Delivery, both with large-scale energy experience.
- Line 2 enhancements: ~86% reduction in raw material travel distance, ~40% reduction in battery line length.

## SEC filing metadata
- accession: 0001628280-26-024345
- form_type: 8-K
- ticker: EOSE
- cik: 0001805077
- company_name: Eos Energy Enterprises, Inc.
- filed_at: 2026-04-09T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1805077/000162828026024345/0001628280-26-024345-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1805077/000162828026024345/eose-20260409.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-024345
- JSON: https://secwatch.observer/filing/0001628280-26-024345.json
- Plain text: https://secwatch.observer/filing/0001628280-26-024345.txt

## Key facts
- Earnings Releases
  Eos Energy Enterprises, Inc. reported first quarter ended March 31, 2026 results: revenue $56 - $57 million.
  - Period: first quarter ended March 31, 2026
  - Revenue: $56 - $57 million
  - Result: preliminary results
  source text: Eos Energy Enterprises, Inc. (NASDAQ: EOSE) ("Eos" or the "Company"), an American energy company and the leading innovator in designing, sourcing, manufacturing, and providing zinc-based battery energy storage systems (BESS), today announced that it expects to report preliminary first quarter 2026 revenue of $56 - $57 million
  evidence_url: https://www.sec.gov/Archives/edgar/data/1805077/000162828026024345/0001628280-26-024345-index.htm

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