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.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026
- 0
- 13F valueReported value at the end of Q2 2026
- $0
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding ADNH, Q2 2026
No superinvestor reported holding ADNH at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Advent Technologies Holdings, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 8, 2023 (view filing) | Sep 6 | 2 days | Gregoriou VassiliosCEO, Chair | SSale | −14.2K | $0.53 | −$7.50K | −0.2%6.37M after | |
| 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 | |
| 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 |
| 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 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 |
Top 10 13F holders, Q2 2026
The largest institutional positions in Advent Technologies Holdings, Inc. at the end of Q2 2026; share changes are against Q1 2026.
No institution reported holding ADNH in 13F filings for Q2 2026.