# EDGAR Filing Document

**Accession Number:** 0001744494
**File Stem:** 9999999995-25-002763
**Filing Date:** 2025-8
**Character Count:** 1480
**Document Hash:** aa47db239c99d59dae3c801b4c725110
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-25-002763.hdr.sgml**: 20250828

**ACCESSION NUMBER**: 9999999995-25-002763

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250827

**DATE AS OF CHANGE**: 20250828

**EFFECTIVENESS DATE**: 20250827

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ADVENT TECHNOLOGIES HOLDINGS, INC.
- **CENTRAL INDEX KEY:** 0001744494
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 830982969
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-289686
- **FILM NUMBER:** 251267302

**BUSINESS ADDRESS:**
- **STREET 1:** 500 RUTHERFORD AVENUE
- **STREET 2:** SUITE 102
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02129
- **BUSINESS PHONE:** 857-264-7035

**MAIL ADDRESS:**
- **STREET 1:** 500 RUTHERFORD AVENUE
- **STREET 2:** SUITE 102
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02129

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AMCI Acquisition Corp.
- **DATE OF NAME CHANGE:** 20180622

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** August 27, 2025

**Time:** 09:00:00

**Form Type:** S-1

---

**CIK:** 0001744494

**Company Name:** ADVENT TECHNOLOGIES HOLDINGS, INC.

**File Number:** 333-289686