---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-006768"
form_type: "8-K"
ticker: "EOSE"
cik: "0001805077"
company_name: "Eos Energy Enterprises, Inc."
filed_at: "2025-01-27T23:59:59+00:00"
generated_at: "2026-05-27T09:21:32.074303+00:00"
event_type: "debt"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Eos Energy secures final $40.5M from Cerberus $210.5M DDTL after achieving third milestone

## Summary
- Achieved third operational milestone (automated line, materials cost, Z3 tech, backlog); final $40.5M DDTL draw triggered.
- Cerberus $210.5M term loan now fully funded; issued Series B-4 Preferred Stock convertible into 16,150,528 common shares.
- Cerberus's fully diluted stake rises to 33.0% (Applicable Percentage); could reach 37.0% if remaining milestones missed.
- Eos surpassed January raw materials cost-out target by 6%; manufacturing cycle times below 10 seconds.
- Combined DDTL funding and DOE loan guarantee first disbursement provide sufficient capital for Project AMAZE.

## SEC filing metadata
- accession: 0001213900-25-006768
- form_type: 8-K
- ticker: EOSE
- cik: 0001805077
- company_name: Eos Energy Enterprises, Inc.
- filed_at: 2025-01-27T23:59:59+00:00
- event_type: debt
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.03, 3.02, 3.03, 5.03, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1805077/000121390025006768/0001213900-25-006768-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1805077/000121390025006768/ea0228729-8k_eos.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-006768
- JSON: https://secwatch.observer/filing/0001213900-25-006768.json
- Plain text: https://secwatch.observer/filing/0001213900-25-006768.txt

## Key facts
- Governance Changes
  Eos Energy Enterprises, Inc.: Filed Certificate of Designation for Series B-4 Non-Voting Convertible Preferred Stock, establishing rights, preferences, and conversion terms (effective 2025-01-24).
  - Change: charter amendment
  - Effective: 2025-01-24
  source text: On January 24, 2025, the Company filed with the Secretary of State of the State of Delaware the Certificate of Designation of Series B-4 Non-Voting Convertible Preferred Stock of the Company attached hereto as Exhibit 3.1 (the “Series B-4 Certificate of Designation”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1805077/000121390025006768/0001213900-25-006768-index.htm

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