---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-24-006872"
form_type: "8-K"
ticker: "ADNH"
cik: "0001744494"
company_name: "ADVENT TECHNOLOGIES HOLDINGS, INC."
filed_at: "2024-10-21T23:59:59+00:00"
generated_at: "2026-05-30T12:22:51.478158+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Advent Technologies regains Nasdaq compliance after filing delinquent 10-Qs

## Summary
- Company received Nasdaq deficiency notices on May 24 and Aug 28, 2024 for missing Q1 and Q2 10-Qs.
- Filed the overdue 10-Qs on October 15, 2024, curing the filing deficiency.
- Nasdaq Staff confirmed compliance on October 15, 2024; matter is now closed.
- No impact on trading; ADN and ADNWW remain listed on Nasdaq.

## SEC filing metadata
- accession: 0001829126-24-006872
- form_type: 8-K
- ticker: ADNH
- cik: 0001744494
- company_name: ADVENT TECHNOLOGIES HOLDINGS, INC.
- filed_at: 2024-10-21T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1744494/000182912624006872/0001829126-24-006872-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1744494/000182912624006872/adventtechnologies_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-24-006872
- JSON: https://secwatch.observer/filing/0001829126-24-006872.json
- Plain text: https://secwatch.observer/filing/0001829126-24-006872.txt

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