Advent Technologies Holdings, Inc.
ADNH- Exchange
- OTC
- Industry
- Miscellaneous Electrical Machinery, Equipment & Supplies
- SEC CIK
- 0001744494
No open-market purchases or sales by Advent Technologies Holdings, Inc. insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Advent Technologies Holdings, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Advent Technologies Holdings, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Dhaliwal Avtar | Director | – | Apr 2, 2025 | 0 |
| Hussain Naiem | Chief Financial Officer | 251,779 | Feb 20, 2024 | 0 |
| Brackman Kevin L. | CFO | 176,477 | Sep 8, 2023 | 0 |
| Gregoriou Vassilios | CEO, Chair | 6,367,669 | Sep 8, 2023 | 0 |
| Kaskavelis Christos | CMO | 2,247,502 | Apr 14, 2023 | 0 |
| De Castro Emory Sayre | CTO | 2,413,503 | Apr 14, 2023 | 0 |
| Coffey James F. | COO, GC | 877,396 | Apr 14, 2023 | 0 |
| Gourdoupi Panoraia | Director | 379,485 | Apr 14, 2023 | 0 |
| Skutaris Anggelos | Director | 83,820 | Jun 17, 2022 | 0 |
| Epstein Lawrence | Director | 67,616 | Jun 17, 2022 | 0 |
| Threatt Wayne | Director | 64,516 | Jun 17, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Apr 14, 2023 (view filing) | Feb 6-8 | 67 days | Coffey James F.COO, GC | SSale | −30.5K | $1.96 | −$59.6K | −3.4%877.4K after | Amended3 lots |
| Apr 14, 2023 (view filing) | Feb 6-8 | 67 days | De Castro Emory SayreCTO | SSale | −30.8K | $1.97 | −$60.7K | −1.3%2.41M after | Amended3 lots |
| Apr 28, 2023 (view filing) | Feb 6-8 | 81 days | Gregoriou VassiliosCEO, Chair | SSale | −75.7K | $1.96 | −$148.2K | −1.2%6.38M after | Amended3 lots |
| Sep 8, 2023 (view filing) | Sep 6 | 2 days | Brackman Kevin L.CFO | SSale | −27.8K | $0.53 | −$14.7K | −13.6%176.5K after | |
| Sep 8, 2023 (view filing) | Sep 6 | 2 days | Gregoriou VassiliosCEO, Chair | SSale | −14.2K | $0.53 | −$7.50K | −0.2%6.37M after |