---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-021247"
form_type: "8-K"
ticker: "EOSE"
cik: "0001805077"
company_name: "Eos Energy Enterprises, Inc."
filed_at: "2026-03-26T23:59:59+00:00"
generated_at: "2026-05-15T08:52:08.323800+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Eos Energy appoints Nathaniel Fick to Board of Directors effective March 24, 2026

## Summary
- Fick, age 48, appointed as independent Class III director; will serve on Nominating and Corporate Governance Committee.
- Fick is Chief Strategy Officer for Equities and Senior Managing Director at Cerberus Capital Management.
- Former U.S. Ambassador-at-Large for Cyberspace & Digital Policy (2023-2025); previously CEO of cybersecurity firm Endgame.
- Board now has eleven directors; Fick brings expertise in national security, cybersecurity, AI, and infrastructure.
- He will not receive compensation from Eos; company will enter standard indemnification agreement.

## SEC filing metadata
- accession: 0001628280-26-021247
- form_type: 8-K
- ticker: EOSE
- cik: 0001805077
- company_name: Eos Energy Enterprises, Inc.
- filed_at: 2026-03-26T23:59:59+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1805077/000162828026021247/0001628280-26-021247-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1805077/000162828026021247/eose-20260324.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-021247
- JSON: https://secwatch.observer/filing/0001628280-26-021247.json
- Plain text: https://secwatch.observer/filing/0001628280-26-021247.txt

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