🕵️ Advent Technologies Holdings, Inc. ($ADNH)
SEC insider & ownership activity, last 12 months · CIK 1744494 · every row links its SEC filing
Insiders were quiet over the last 12 months – no open-market buys or sells. 2 red-flag 8-Ks in the window, most recently Delisting notice (3.01), Oct 29, 2025.
Insider flow
0 buyers, $0 (0 lots) · 0 sellers, $0 (0 lots)
No open-market insider transactions in the last 12 months.
5%+ holders
No current 5%+ beneficial-ownership positions on file.
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Jul 20, 2026 | filing ↗ |
| Other events (8.01) | May 14, 2026 | filing ↗ |
| Material agreement (1.01) | Jan 8, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Jan 8, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 8, 2026 | filing ↗ |
| Agreement terminated (1.02) | Nov 5, 2025 | filing ↗ |
| Officer/director changes (5.02) | Oct 29, 2025 | filing ↗ |
| Delisting notice (3.01) | Oct 29, 2025 | filing ↗ |
| Shareholder vote (5.07) | Oct 22, 2025 | filing ↗ |
| Agreement terminated (1.02) | Sep 11, 2025 | filing ↗ |
| Material agreement (1.01) | Aug 28, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Aug 28, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 28, 2025 | filing ↗ |
| Delisting notice (3.01) | Aug 18, 2025 | filing ↗ |
| Material agreement (1.01) | Aug 14, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Aug 14, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 14, 2025 | filing ↗ |
| Other events (8.01) | Aug 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2025 | filing ↗ |
| Material agreement (1.01) | Aug 1, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Aug 1, 2025 | filing ↗ |
| Other events (8.01) | Aug 1, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 1, 2025 | filing ↗ |