---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-24-007083"
form_type: "8-K"
ticker: "ADNH"
cik: "0001744494"
company_name: "ADVENT TECHNOLOGIES HOLDINGS, INC."
filed_at: "2024-10-29T23:59:59+00:00"
generated_at: "2026-05-30T09:20:16.566598+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Advent Technologies terminates Chief Strategy Officer Christos Kaskavelis for cause

## Summary
- Christos Kaskavelis terminated as Chief Strategy Officer effective October 29, 2024, for cause.
- Termination approved by Board of Directors; no successor named.
- Interim CEO Gary Herman signed the 8-K; CSO duties likely absorbed by remaining executives.

## SEC filing metadata
- accession: 0001829126-24-007083
- form_type: 8-K
- ticker: ADNH
- cik: 0001744494
- company_name: ADVENT TECHNOLOGIES HOLDINGS, INC.
- filed_at: 2024-10-29T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1744494/000182912624007083/0001829126-24-007083-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1744494/000182912624007083/adventtech_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-24-007083
- JSON: https://secwatch.observer/filing/0001829126-24-007083.json
- Plain text: https://secwatch.observer/filing/0001829126-24-007083.txt

## Key facts
- Executive change
  Christos Kaskavelis was terminated as Chief Strategy Officer at ADVENT TECHNOLOGIES HOLDINGS, INC..
  - Action: terminated
  - Role: Chief Strategy Officer
  source text: approved the termination of the employment of Christos Kaskavelis, Chief Strategy Officer of the Company, for cause, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1744494/000182912624007083/0001829126-24-007083-index.htm

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