Advent Technologies Holdings ADNH Insider Ownership

OTC ADNH
$0.00 +0.00 (+0.00%)
At close: Oct 14, 2026 · 4:00 PM EDT

Insider Holdings by Owner

355.88K Shares

Insider Ownership Statistics

as of 31 Dec, 2025
Insider Ownership
0.298%
■0% pp QoQ
Shares Held by Insiders
8.39K
filed for Dec 2025
■0.00% QoQ
Shares Outstanding
2.82Mn
2,819,633 shares
Direct Holdings
8.39K
Indirect: 0
Net Shares Traded (QoQ)
0
no net change in Dec 2025
Insiders Holding Shares
9
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —
Form 4 Holdings

Insiders Holding ADNH

Insiders 9
Shares held 355.88K
Of outstanding 12.62%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Vassilios Gregoriou Ceo, Chair 212,234 0 212,234 59.6% 08 Sep, 2023
2 Castro Emory Sayre De Cto 80,442 0 80,442 22.6% 14 Apr, 2023
3 James F. Coffey Coo, Gc 29,244 0 29,244 8.2% 14 Apr, 2023
4 Panoraia Gourdoupi Director 12,492 0 12,492 3.5% 01 Sep, 2022
5 Naiem Hussain Chief Financial Officer 8,392 0 8,392 2.4% 20 Feb, 2024
6 Kevin L. Brackman Cfo 5,882 0 5,882 1.7% 08 Sep, 2023
7 Anggelos Skutaris Director 2,794 0 2,794 0.8% 17 Jun, 2022
8 Lawrence Epstein Director 2,254 0 2,254 0.6% 17 Jun, 2022
9 Wayne Threatt Director 2,150 0 2,150 0.6% 17 Jun, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

74 Insider Transactions

Source SEC Form 4
Latest quarter Dec 2025
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
15 Feb, 2024 Naiem Hussain Chief Financial Officer Acquired A 166,779 $0.00 $0 8,392 Direct
15 Feb, 2024 Naiem Hussain Chief Financial Officer Acquired A 166,779 $0.00 $0 5,559 Direct
06 Sep, 2023 Vassilios Gregoriou Ceo, Chair Disposed S 14,157 $15.93 $225.54K 212,234 Direct
06 Sep, 2023 Kevin L. Brackman Cfo Disposed S 27,771 $15.93 $442.44K 5,882 Direct
06 Feb, 2023 James F. Coffey Coo, Gc Disposed S 7,505 $59.98 $450.14K 30,009 Direct
06 Feb, 2023 Vassilios Gregoriou Ceo, Chair Disposed S 18,642 $59.98 $1.12Mn 218,111 Direct
06 Feb, 2023 Castro Emory Sayre De Cto Disposed S 7,596 $59.98 $455.60K 81,217 Direct
07 Feb, 2023 James F. Coffey Coo, Gc Disposed S 13,823 $58.77 $812.38K 29,548 Direct
07 Feb, 2023 Castro Emory Sayre De Cto Disposed S 13,992 $58.77 $822.31K 80,750 Direct
07 Feb, 2023 Vassilios Gregoriou Ceo, Chair Disposed S 34,338 $58.77 $2.02Mn 216,966 Direct
08 Feb, 2023 James F. Coffey Coo, Gc Disposed S 9,136 $57.54 $525.71K 29,244 Direct
08 Feb, 2023 Vassilios Gregoriou Ceo, Chair Disposed S 22,696 $57.54 $1.31Mn 216,210 Direct
08 Feb, 2023 Castro Emory Sayre De Cto Disposed S 9,248 $58.70 $542.87K 80,442 Direct
04 Feb, 2023 Castro Emory Sayre De Cto Disposed F 29,401 $61.21 $1.80Mn 80,490 Direct
04 Feb, 2023 James F. Coffey Coo, Gc Disposed F 29,046 $61.21 $1.78Mn 29,291 Direct
04 Feb, 2023 Vassilios Gregoriou Ceo, Chair Disposed F 72,161 $61.21 $4.42Mn 216,327 Direct
31 Aug, 2022 Panoraia Gourdoupi Director Disposed F 4,688 $0.00 $0 12,492 Direct
24 Aug, 2022 Kevin L. Brackman Cfo Disposed F 26,281 $85.21 $2.24Mn 6,808 Direct
12 Jul, 2022 Vassilios Gregoriou Ceo, Chair Acquired A 175,000 $0.00 $0 218,732 Direct
12 Jul, 2022 Vassilios Gregoriou Ceo, Chair Acquired A 175,000 $0.00 $0 5,833 Direct