ADNH · Advent Technologies Holdings, Inc. · Executive Compensation
$0.01
At close · Oct 5
View the 10-K filed Jun 6, 2025
Return incl. dividend (before tax)
Going-concern doubt
— flagged Nov 17, 2025
Substantial doubt about the company's ability to continue as a going concern.
“Because of the uncertainty in securing additional funding, delays in growth of revenue, failure to materialize cost-cutting efforts and the insufficient amount of cash and cash equivalents as of the consolidated financial statement filing date, management has concluded that substantial doubt exists with respect to the Company's ability to continue as a going concern for one year from the date the consolidated financial statements are issued.”View the 10-Q filed Nov 17, 2025
Customer concentration
— top 3 customers 10% of revenue
3 customers — 10% of revenue (During the year ended December 31, 2024 and 2023)
“During the year ended December 31, 2024 and 2023, the Company had three 3 customers that represented more than 10% of its revenues.”
One customer — 10% of receivables (As of December 31, 2024)
“As of December 31, 2024 and 2023, the Company had one 1 and two 2 major customers, respectively, that represented more than 10% of our accounts receivable balance.”
2 customers — 10% of receivables (As of December 31, 2023)
“As of December 31, 2024 and 2023, the Company had one 1 and two 2 major customers, respectively, that represented more than 10% of our accounts receivable balance.”
Market Cap
$1,136
Shares
3.79M
Volume · Oct 5
191
Avg daily vol (3M)
10.09K
Named-executive compensation from the company's DEF 14A proxy statements — salary, bonus, stock and option awards, non-equity incentive, and the company-reported total per executive per fiscal year, exactly as disclosed in the Summary Compensation Table.
Fiscal 2024
| Executive | Role | Total |
|---|---|---|
| Vassilios Gregoriou | Former Chairman of the Board of Directors, Former Chief Executive Officer and Former Acting Chief Financial Officer | $800,000 |
| James F. Coffey | Chief Operating Officer and General Counsel | $475,000 |
| Emory De Castro | Chief Technology Officer and Director | $350,000 |
| Gary Herman | Chief Executive Officer and Interim Chief Financial Officer, Director | $0 |
Fiscal 2023
| Executive | Role | Total |
|---|---|---|
| Vassilios Gregoriou | Former Chairman of the Board of Directors, Former Chief Executive Officer and Former Acting Chief Financial Officer | $800,000 |
| James F. Coffey | Chief Operating Officer and General Counsel | $475,000 |
| Kevin Brackman | Former Chief Financial Officer | $375,000 |
| Emory De Castro | Chief Technology Officer and Director | $350,000 |
| Gary Herman | Chief Executive Officer and Interim Chief Financial Officer, Director | $0 |
Fiscal 2022
| Executive | Role | Total |
|---|---|---|
| Vassilios Gregoriou | Former Chairman of the Board of Directors, Former Chief Executive Officer and Former Acting Chief Financial Officer | $1,697,750 |
| James F. Coffey | Chief Operating Officer and General Counsel | $475,000 |
| Kevin Brackman | Former Chief Financial Officer | $375,000 |
| Gary Herman | Chief Executive Officer and Interim Chief Financial Officer, Director | $0 |
| Emory De Castro | Chief Technology Officer and Director | $0 |
Fiscal 2021
| Executive | Role | Total |
|---|---|---|
| Vassilios Gregoriou | Chairman of the Board of Directors and Chief Executive Officer | $19,200,617 |
| Christos Kaskavelis | Chief Marketing Officer | $7,151,600 |
| Emory De Castro | Chief Technology Officer | $7,135,228 |
| James F. Coffey | Chief Operating Officer and General Counsel | $7,045,228 |
| Kevin Brackman | Chief Financial Officer | $3,355,016 |
Fiscal 2020
| Executive | Role | Total |
|---|---|---|
| Vassilios Gregoriou | Chairman of the Board of Directors and Chief Executive Officer | $493,966 |
| Emory De Castro | Chief Technology Officer | $323,896 |
| Christos Kaskavelis | Chief Marketing Officer | $293,896 |
Fiscal 2019
| Executive | Role | Total |
|---|---|---|
| Vassilios Gregoriou | Chief Executive Officer and Chairman of the Board of Directors | $170,000 |
| Emory De Castro | Chief Technology Officer | $150,000 |
| Christos Kaskavelis | Chief Marketing Officer | $68,909 |
Executive changes
| Person | Role | Change | Filed |
|---|---|---|---|
| Chris Antonopoulos | Class II Director | Appointed | 2026-01-15 |
| Joseph Celia | member of the Board of Directors | Resigned | 2025-11-03 |
| Marc Seelenfreund | member of the Board of Directors | Resigned | 2025-11-03 |
| Joseph P. Celia | Class II director | Appointed | 2024-11-08 |
| Seth M. Lukash | Class II director | Appointed | 2024-11-08 |
| Christos Kaskavelis | Chief Strategy Officer | Terminated | 2024-10-29 |
| Gary Herman | interim chief executive officer | Appointed | 2024-10-24 |
| Vassilios Gregoriou | Acting Chief Financial Officer | Terminated | 2024-10-24 |
| Vassilios Gregoriou | Chief Executive Officer | Terminated | 2024-10-24 |
| Avtar Dhaliwal | Class II directors | Appointed | 2024-09-05 |
| Gary Herman | Class I Director | Appointed | 2024-09-05 |
| Wayne Threatt | directors | Resigned | 2024-09-05 |
| Marc Seelenfreund | Class II directors | Appointed | 2024-09-05 |
| Nora Goudroupi | directors | Resigned | 2024-09-05 |
| Naiem Hussain | Chief Financial Officer ("CFO") | Resigned | 2024-03-12 |
| Naiem Hussain | Chief Financial Officer | Appointed | 2024-01-11 |
| Kevin L. Brackman | Chief Financial Officer | Resigned | 2024-01-11 |
| Katrina Fritz | Class I director | Resigned | 2022-11-04 |
| Von McConnell | Class I director | Appointed | 2022-11-04 |
| Dr. Panoraia 'Nora' Gourdoupi | director | Appointed | 2022-07-22 |
| Dr. Christos Kaskavelis | Class III director | Resigned | 2022-07-22 |