ADVENT TECHNOLOGIES HOLDINGS, INC. (ADNWW)

Latest Insider Confidence Score

2025Q4

50.0
Bearish

Company insider confidence (by quarter)

2018Q4 2025Q4

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Gregoriou Vassilios CEO 6,367,669 Sep 8, 2023
De Castro Emory Sayre CTO 2,413,503 Apr 14, 2023
Kaskavelis Christos — 1,802,405 Apr 14, 2023
Hudson Bay Capital Management LP 10% Owner 900,000 Dec 1, 2020
Gerber Sander 10% Owner 900,000 Dec 1, 2020

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Apr 2, 2025 Dhaliwal Avtar Director Neutral 52.5 - 0.00% ✗ -
Apr 2, 2025 Dhaliwal Avtar Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2025 LUKASH SETH M Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2025 SCHWARTZ ROBERT WILLIAM Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2025 Seelenfreund Marc Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2025 Celia Joseph Patrick Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2025 Herman Gary L CEO Neutral 52.5 - 0.00% ✗ -
Feb 15, 2024 Feb 20, 2024 Hussain Naiem CFO Neutral 90.0 +166,779 196.21% ✗ -
Feb 12, 2024 Hussain Naiem CFO Neutral 52.5 - 0.00% ✗ -
Sep 6, 2023 Sep 8, 2023 Gregoriou Vassilios CEO Sell 52.5 -14,157 -0.22% ✗ $7.5K
Sep 6, 2023 Sep 8, 2023 Brackman Kevin L. CFO Sell 46.3 -27,771 -13.60% ✗ $14.7K
Feb 6, 2023 Apr 28, 2023 Gregoriou Vassilios CEO Sell 42.5 -75,676 -1.17% ✗ $148.1K
Jan 12, 2023 Apr 14, 2023 GOURDOUPI PANORAIA Director Neutral 77.5 +4,688 1.25% ✗ -
Jun 11, 2021 Apr 14, 2023 Kaskavelis Christos CMO Neutral 85.0 +345,794 9.34% ✗ -
Feb 6, 2023 Apr 14, 2023 Gregoriou Vassilios CEO Sell 42.5 -75,676 -1.15% ✗ $148.1K
Feb 6, 2023 Apr 14, 2023 De Castro Emory Sayre CTO Sell 42.5 -30,836 -1.26% ✗ $60.7K
Feb 6, 2023 Apr 14, 2023 Coffey James F. COO Sell 42.5 -30,464 -3.36% ✗ $59.6K
Feb 4, 2023 Feb 7, 2023 Gregoriou Vassilios CEO Sell 42.5 -72,161 -1.10% ✗ $147.2K
Feb 4, 2023 Feb 7, 2023 Coffey James F. COO Sell 42.5 -29,046 -3.20% ✗ $59.3K
Feb 4, 2023 Feb 7, 2023 De Castro Emory Sayre CTO Sell 42.5 -29,401 -1.20% ✗ $60K
Nov 14, 2022 MCCONNELL VON Director Neutral 52.5 - 0.00% ✗ -
Aug 31, 2022 Sep 6, 2022 GOURDOUPI PANORAIA Director Neutral 47.5 -4,688 -1.24% ✗ -
Feb 4, 2022 Aug 26, 2022 Gregoriou Vassilios CEO Sell 40.0 -105,122 -1.60% ✗ $424.7K
Aug 24, 2022 Aug 26, 2022 Brackman Kevin L. CFO Sell 42.5 -26,281 -11.40% ✗ $74.6K
Feb 4, 2022 Aug 26, 2022 Coffey James F. COO Sell 42.5 -28,639 -3.06% ✗ $115.7K
Feb 4, 2022 Aug 26, 2022 De Castro Emory Sayre Chief Technology Officer Sell 42.5 -26,454 -1.07% ✗ $106.9K
Aug 5, 2022 GOURDOUPI PANORAIA Director Neutral 52.5 - 0.00% ✗ -
Jul 12, 2022 Jul 15, 2022 Gregoriou Vassilios CEO Neutral 82.5 +175,000 2.74% ✗ -
Jun 15, 2022 Jun 17, 2022 THREATT WAYNE Director Neutral 90.0 +64,516 100.00% ✗ -
Jun 15, 2022 Jun 17, 2022 Skutaris Anggelos Director Neutral 90.0 +64,516 334.21% ✗ -
Jun 15, 2022 Jun 17, 2022 EPSTEIN LAWRENCE Director Neutral 90.0 +64,516 2081.16% ✗ -
Jun 14, 2022 THREATT WAYNE Director Neutral 52.5 - 0.00% ✗ -
Apr 18, 2022 EPSTEIN LAWRENCE Director Neutral 52.5 - 0.00% ✗ -
Aug 24, 2021 Aug 26, 2021 Brackman Kevin L. CFO Neutral 90.0 +230,529 100.00% ✗ -
Jul 20, 2021 Brackman Kevin L. CFO Neutral 52.5 - 0.00% ✗ -
Jun 11, 2021 Jun 16, 2021 Gregoriou Vassilios CEO Neutral 90.0 +922,118 16.87% ✗ -
Jun 11, 2021 Jun 15, 2021 Gregoriou Vassilios CEO Neutral 90.0 +922,118 16.87% ✗ -
Jun 11, 2021 Jun 15, 2021 William John Hunter CFO Neutral 90.0 +345,794 345.79% ✗ -
Jun 11, 2021 Jun 15, 2021 CLARK LAWRENCE M JR Director Neutral 90.0 +19,304 55.15% ✗ -
Jun 11, 2021 Jun 15, 2021 Coffey James F. COO Neutral 90.0 +345,794 58.54% ✗ -
Jun 11, 2021 Jun 15, 2021 Fritz Katrina Director Neutral 90.0 +19,304 100.00% ✗ -
Jun 11, 2021 Jun 15, 2021 De Castro Emory Sayre Chief Technology Officer Neutral 90.0 +345,794 16.27% ✗ -
Jun 11, 2021 Jun 15, 2021 Kaskavelis Christos Chief Marketing Officer Neutral 82.5 +345,794 4.67% ✗ -
Jun 11, 2021 Jun 15, 2021 Fleming Katherine E. Director Neutral 90.0 +19,304 100.00% ✗ -
Jun 11, 2021 Jun 15, 2021 Skutaris Anggelos Director Neutral 90.0 +19,304 100.00% ✗ -
Feb 4, 2021 Feb 5, 2021 Kaskavelis Christos Chief Marketing Officer Neutral 90.0 +3,704,113 194.78% ✗ -
Feb 4, 2021 Feb 5, 2021 William John Hunter CFO Neutral 90.0 +100,000 100.00% ✗ -
Feb 4, 2021 Feb 5, 2021 Gregoriou Vassilios CEO Neutral 90.0 +5,465,506 100.00% ✗ -
Feb 4, 2021 Feb 5, 2021 De Castro Emory Sayre Chief Technology Officer Neutral 90.0 +2,124,999 100.00% ✗ -
Feb 4, 2021 Feb 5, 2021 Coffey James F. COO Neutral 90.0 +590,705 100.00% ✗ -
Feb 4, 2021 Feb 5, 2021 CLARK LAWRENCE M JR Director Neutral 90.0 +35,000 100.00% ✗ -
Feb 5, 2021 Coffey James F. COO Neutral 52.5 - 0.00% ✗ -
Feb 5, 2021 De Castro Emory Sayre Chief Technology Officer Neutral 52.5 - 0.00% ✗ -
Feb 5, 2021 Fleming Katherine E. Director Neutral 52.5 - 0.00% ✗ -
Feb 5, 2021 Fritz Katrina Director Neutral 52.5 - 0.00% ✗ -
Feb 5, 2021 Kaskavelis Christos Chief Marketing Officer Neutral 52.5 - 0.00% ✗ -
Feb 5, 2021 Gregoriou Vassilios CEO Neutral 52.5 - 0.00% ✗ -
Feb 5, 2021 Skutaris Anggelos Director Neutral 52.5 - 0.00% ✗ -
Dec 1, 2020 Dec 3, 2020 ADAGE CAPITAL PARTNERS GP, L.L.C. 10% Owner Sell 15.0 -1,018,465 -56.58% ✗ $12.3M
Nov 30, 2020 Dec 2, 2020 GLAZER CAPITAL, LLC 10% Owner Sell 16.3 -628,713 -44.47% ✗ $8M
Nov 27, 2020 Dec 1, 2020 Hudson Bay Capital Management LP 10% Owner Sell 17.5 -100,000 -10.00% ✗ $1.1M
Nov 30, 2020 ADAGE CAPITAL PARTNERS GP, L.L.C. 10% Owner Neutral 52.5 - 0.00% ✗ -
Nov 24, 2020 Nov 25, 2020 GLAZER CAPITAL, LLC 10% Owner Sell 17.5 -189,573 -11.82% ✗ $2M
Oct 19, 2020 Oct 21, 2020 GLAZER CAPITAL, LLC 10% Owner Sell 20.0 -25,000 -1.54% ✗ $258.8K
Oct 16, 2020 Oct 20, 2020 Hudson Bay Capital Management LP 10% Owner Sell 15.0 -1,601,100 -61.55% ✗ $16.5M
Oct 13, 2020 Oct 15, 2020 GLAZER CAPITAL, LLC 10% Owner Sell 17.5 -405,983 -19.96% ✗ $4.2M
Sep 22, 2020 Sep 24, 2020 GLAZER CAPITAL, LLC 10% Owner Sell 20.0 -50,000 -2.40% ✗ $548K
Sep 16, 2020 Sep 18, 2020 GLAZER CAPITAL, LLC 10% Owner Sell 40.0 -8,169 -0.39% ✗ $86.1K
May 22, 2020 May 27, 2020 GLAZER CAPITAL, LLC 10% Owner Sell 15.0 -1,000,000 -32.34% ✗ $10.2M
Apr 27, 2020 GLAZER CAPITAL, LLC 10% Owner Neutral 52.5 - 0.00% ✗ -
Mar 25, 2020 Mar 27, 2020 Hudson Bay Capital Management LP 10% Owner Buy 100.0 +384,300 17.34% ✗ $3.9M
Mar 26, 2020 Hudson Bay Capital Management LP 10% Owner Neutral 52.5 - 0.00% ✗ -
Mar 24, 2020 Mar 26, 2020 GLAZER CAPITAL, LLC 10% Owner Sell 17.5 -250,000 -11.28% ✗ $2.5M
Mar 20, 2020 GLAZER CAPITAL, LLC 10% Owner Neutral 52.5 - 0.00% ✗ -
Nov 27, 2018 Nov 29, 2018 AMCI Sponsor LLC 10% Owner Neutral 52.5 - 0.00% ✗ -
Nov 15, 2018 Grant Jason Director Neutral 52.5 - 0.00% ✗ -
Nov 15, 2018 Uren Gary Evan Director Neutral 52.5 - 0.00% ✗ -
Nov 15, 2018 CLARK LAWRENCE M JR Director Neutral 52.5 - 0.00% ✗ -
Nov 15, 2018 Patel Nimesh President Neutral 52.5 - 0.00% ✗ -
Nov 15, 2018 Beem Brian President Neutral 52.5 - 0.00% ✗ -
Nov 15, 2018 William John Hunter CEO Neutral 52.5 - 0.00% ✗ -
Nov 15, 2018 AMCI Sponsor LLC 10% Owner Neutral 52.5 - 0.00% ✗ -