---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-25-007376"
form_type: "8-K"
ticker: "ADNH"
cik: "0001744494"
company_name: "ADVENT TECHNOLOGIES HOLDINGS, INC."
filed_at: "2025-09-12T23:59:59+00:00"
generated_at: "2026-05-17T06:45:16.793669+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Advent Technologies repays $418K promissory note in full, terminating agreement

## Summary
- Repaid all amounts owed under $418K convertible promissory note (incl. $42K OID) with 0% interest.
- Note was issued Aug 28, 2025 to Hudson Global Ventures; interest rate was 12% per annum.
- Pre-funded warrant for 130,000 shares of common stock was also part of the original agreement.
- Satisfaction and termination effective as of September 11, 2025.

## SEC filing metadata
- accession: 0001829126-25-007376
- form_type: 8-K
- ticker: ADNH
- cik: 0001744494
- company_name: ADVENT TECHNOLOGIES HOLDINGS, INC.
- filed_at: 2025-09-12T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 1.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1744494/000182912625007376/0001829126-25-007376-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1744494/000182912625007376/adventtech_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-25-007376
- JSON: https://secwatch.observer/filing/0001829126-25-007376.json
- Plain text: https://secwatch.observer/filing/0001829126-25-007376.txt

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