ADVENT TECHNOLOGIES HOLDINGS, INC. SEC EDGAR Filings (CIK 0001744494)

SEC EDGAR filings, ownership reports, and insider transactions for ADVENT TECHNOLOGIES HOLDINGS, INC..

Symbol
ADN, ADNH, ADNWW on OTC
Industry
Miscellaneous Electrical Machinery, Equipment & Supplies (Office Of Manufacturing)
Business address
500 Rutherford Avenue, Suite 102, Boston, MA, 02129
State of incorporation
DE
Fiscal year end
31 December
Former names
AMCI Acquisition Corp. (to 04 Feb 2021)
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ADVENT TECHNOLOGIES HOLDINGS, INC. has filed 383 SEC EDGAR filings since 20 Jul 2018

Latest Filings

Recent SEC filings for ADVENT TECHNOLOGIES HOLDINGS, INC. including 8-K, 10-Q, NT 10-Q and more.

Form type Document Filing Description Filing date Reporting date File number(s)
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Jan 2026 08 Jan 2026 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 17 Nov 2025 30 Sep 2025 001-38742
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 14 Nov 2025 30 Sep 2025 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 Nov 2025 05 Nov 2025 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Nov 2025 29 Oct 2025 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Oct 2025 29 Oct 2025 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Oct 2025 22 Oct 2025 001-38742
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEF 14A 30 Sep 2025 22 Oct 2025 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Sep 2025 11 Sep 2025 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Sep 2025 28 Aug 2025 001-38742
EFFECT Open EFFECT document View SEC filing for EFFECT 27 Aug 2025 333-289686
424B3 Open 424B3 document View SEC filing for 424B3 424B3 27 Aug 2025 333-289686
CORRESP Open CORRESP document View SEC filing for CORRESP 25 Aug 2025
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 25 Aug 2025 333-289686
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Aug 2025 18 Aug 2025 001-38742
S-1 Open S-1 document | Open XBRL data View SEC filing for S-1 S-1 18 Aug 2025 333-289686
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 Aug 2025 14 Aug 2025 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Aug 2025 30 Jun 2025 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Aug 2025 06 Aug 2025 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Aug 2025 01 Aug 2025 001-38742
S-8 Open S-8 document View SEC filing for S-8 S-8 18 Jul 2025 333-288775
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Jul 2025 01 Jul 2025 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 30 Jun 2025 31 Mar 2025 001-38742
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 06 Jun 2025 31 Dec 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 May 2025 22 May 2025 001-38742
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 14 May 2025 31 Mar 2025 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Apr 2025 16 Apr 2025 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Apr 2025 15 Apr 2025 001-38742
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2025 31 Dec 2024
3 Open 3 document View SEC filing for 3 FORM 3 02 Apr 2025 30 Aug 2024
NT 10-K Open NT 10-K document View SEC filing for NT 10-K NT 10-K 31 Mar 2025 31 Dec 2024 001-38742
3 Open 3 document View SEC filing for 3 FORM 3 11 Mar 2025 04 Nov 2024
3 Open 3 document View SEC filing for 3 FORM 3 11 Mar 2025 31 Dec 2024
3 Open 3 document View SEC filing for 3 FORM 3 11 Mar 2025 30 Aug 2024
3 Open 3 document View SEC filing for 3 FORM 3 11 Mar 2025 04 Nov 2024
3 Open 3 document View SEC filing for 3 FORM 3 11 Mar 2025 30 Aug 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Mar 2025 11 Mar 2025 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 02 Jan 2025 31 Dec 2024 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 27 Dec 2024 30 Sep 2024 001-38742
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 18 Dec 2024 24 Oct 2024 001-38742
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 10 Dec 2024 31 Dec 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 Nov 2024 27 Nov 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 26 Nov 2024 26 Nov 2024 001-38742
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 14 Nov 2024 30 Sep 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Nov 2024 04 Nov 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Oct 2024 29 Oct 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 24 Oct 2024 24 Oct 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Oct 2024 18 Oct 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Oct 2024 15 Oct 2024 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 Oct 2024 30 Jun 2024 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 Oct 2024 31 Mar 2024 001-38742
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 02 Oct 2024 16 Sep 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 Sep 2024 16 Sep 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 Sep 2024 28 Aug 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Aug 2024 16 Aug 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 Aug 2024 20 Aug 2024 001-38742
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 14 Aug 2024 30 Jun 2024 001-38742
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 13 Aug 2024 31 Dec 2023 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 Aug 2024 30 Jul 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Jul 2024 25 Jul 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Jul 2024 29 Jun 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 May 2024 24 May 2024 001-38742
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 29 May 2024 31 Mar 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 May 2024 21 May 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 May 2024 13 May 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 May 2024 09 May 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 May 2024 29 Apr 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Apr 2024 17 Apr 2024 001-38742
NT 10-K Open NT 10-K document View SEC filing for NT 10-K NT 10-K 01 Apr 2024 31 Dec 2023 001-38742
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 29 Mar 2024 29 Apr 2024 001-38742
PRE 14A Open PRE 14A document View SEC filing for PRE 14A PRE 14A 18 Mar 2024 18 Mar 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Mar 2024 11 Mar 2024 001-38742
4 Open 4 document View SEC filing for 4 FORM 4 20 Feb 2024 15 Feb 2024
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 12 Feb 2024 005-90727
3 Open 3 document View SEC filing for 3 FORM 3 12 Feb 2024 02 Feb 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Jan 2024 19 Jan 2024 001-38742
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 17 Jan 2024 05 Jan 2024 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Jan 2024 05 Jan 2024 001-38742
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 10 Jan 2024 005-90727
424B5 Open 424B5 document View SEC filing for 424B5 424B5 28 Dec 2023 333-271389
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 Dec 2023 22 Dec 2023 001-38742
424B5 Open 424B5 document View SEC filing for 424B5 424B5 27 Dec 2023 333-271389
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Nov 2023 21 Nov 2023 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 Nov 2023 30 Sep 2023 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Nov 2023 14 Nov 2023 001-38742
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 03 Oct 2023 005-90727
4 Open 4 document View SEC filing for 4 FORM 4 08 Sep 2023 06 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 08 Sep 2023 06 Sep 2023
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 Aug 2023 30 Jun 2023 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Aug 2023 11 Aug 2023 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 Jun 2023 13 Jun 2023 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 02 Jun 2023 02 Jun 2023 001-38742
424B5 Open 424B5 document View SEC filing for 424B5 424B5 02 Jun 2023 333-271389
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 26 May 2023 24 May 2023 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 May 2023 31 Mar 2023 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 May 2023 15 May 2023 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 May 2023 05 May 2023 001-38742
EFFECT Open EFFECT document View SEC filing for EFFECT 02 May 2023 333-271389
424B5 Open 424B5 document View SEC filing for 424B5 424B5 02 May 2023 333-271389
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 28 Apr 2023 06 Feb 2023
CORRESP Open CORRESP document View SEC filing for CORRESP 28 Apr 2023
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 27 Apr 2023
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 25 Apr 2023 001-38742
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 25 Apr 2023 13 Jun 2023 001-38742
S-3 Open S-3 document View SEC filing for S-3 S-3 21 Apr 2023 333-271389
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Apr 2023 12 Jan 2023
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 14 Apr 2023 11 Jun 2021
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 14 Apr 2023 06 Feb 2023
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 14 Apr 2023 06 Feb 2023
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 14 Apr 2023 06 Feb 2023
PRE 14A Open PRE 14A document View SEC filing for PRE 14A PRE 14A 13 Apr 2023 13 Apr 2023 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Apr 2023 10 Apr 2023 001-38742
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 04 Apr 2023 005-90727
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 31 Mar 2023 31 Dec 2022 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 31 Mar 2023 31 Mar 2023 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Mar 2023 29 Mar 2023 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 Mar 2023 06 Mar 2023 001-38742
SC 13G Open SC 13G document View SEC filing for SC 13G 09 Feb 2023 005-90727
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SEC SCHEDULE 13G 08 Feb 2023 005-90727
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Feb 2023 04 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Feb 2023 04 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Feb 2023 04 Feb 2023
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 31 Jan 2023 005-90727
424B3 Open 424B3 document View SEC filing for 424B3 424B3 05 Jan 2023 333-264421
424B3 Open 424B3 document View SEC filing for 424B3 424B3 05 Jan 2023 333-253114
EFFECT Open EFFECT document View SEC filing for EFFECT 22 Dec 2022 333-253114
POS AM Open POS AM document View SEC filing for POS AM POS AM 21 Dec 2022 333-253114
424B3 Open 424B3 document View SEC filing for 424B3 424B3 14 Nov 2022 333-264421
424B3 Open 424B3 document View SEC filing for 424B3 424B3 14 Nov 2022 333-253114
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 14 Nov 2022 04 Nov 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 Nov 2022 30 Sep 2022 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Nov 2022 14 Nov 2022 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Nov 2022 04 Nov 2022 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 14 Oct 2022 333-264421
424B3 Open 424B3 document View SEC filing for 424B3 424B3 14 Oct 2022 333-253114
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Sep 2022 31 Aug 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 02 Sep 2022 31 Aug 2022 001-38742
4 Open 4 document View SEC filing for 4 4 26 Aug 2022 04 Feb 2022
4 Open 4 document View SEC filing for 4 4 26 Aug 2022 24 Aug 2022
4 Open 4 document View SEC filing for 4 4 26 Aug 2022 04 Feb 2022
4 Open 4 document View SEC filing for 4 4 26 Aug 2022 04 Feb 2022
424B3 Open 424B3 document View SEC filing for 424B3 424B3 24 Aug 2022 333-264421
424B3 Open 424B3 document View SEC filing for 424B3 424B3 24 Aug 2022 333-253114
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Aug 2022 30 Jun 2022 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 Aug 2022 09 Aug 2022 001-38742
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 05 Aug 2022 20 Jul 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Jul 2022 19 Jul 2022 001-38742
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Jul 2022 12 Jul 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Jul 2022 07 Jul 2022 001-38742
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 05 Jul 2022 005-90727
424B3 Open 424B3 document View SEC filing for 424B3 424B3 21 Jun 2022 333-264421
424B3 Open 424B3 document View SEC filing for 424B3 424B3 21 Jun 2022 333-253114
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jun 2022 15 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jun 2022 15 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jun 2022 15 Jun 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Jun 2022 15 Jun 2022 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Jun 2022 03 Jun 2022 001-38742
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 14 Jun 2022 08 Jun 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Jun 2022 08 Jun 2022 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Jun 2022 27 May 2022 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 13 May 2022 333-264421
424B3 Open 424B3 document View SEC filing for 424B3 424B3 13 May 2022 333-253114
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 May 2022 31 Mar 2022 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 May 2022 12 May 2022 001-38742
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 02 May 2022 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 29 Apr 2022 333-264421
EFFECT Open EFFECT document View SEC filing for EFFECT 28 Apr 2022 333-264421
CORRESP Open CORRESP document View SEC filing for CORRESP 26 Apr 2022
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 26 Apr 2022
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 26 Apr 2022 001-38742
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 26 Apr 2022 08 Jun 2022 001-38742
S-1 Open S-1 document | Open XBRL data View SEC filing for S-1 S-1 21 Apr 2022 333-264421
424B3 Open 424B3 document View SEC filing for 424B3 424B3 21 Apr 2022 333-253114
EFFECT Open EFFECT document View SEC filing for EFFECT 19 Apr 2022 333-253114
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 18 Apr 2022 08 Apr 2022
POS AM Open POS AM document | Open XBRL data View SEC filing for POS AM POS AM 15 Apr 2022 333-253114
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 13 Apr 2022 08 Apr 2022 001-38742
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 31 Mar 2022 31 Dec 2021 001-38742
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 31 Mar 2022 30 Aug 2021 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 28 Mar 2022 28 Mar 2022 001-38742
SC 13G Open SC 13G document View SEC filing for SC 13G SEC SCHEDULE 13G 14 Feb 2022 005-90727
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 09 Feb 2022 005-90727
SC 13G Open SC 13G document View SEC filing for SC 13G 31 Jan 2022 005-90727
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 28 Jan 2022 28 Jan 2022 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 15 Nov 2021 333-253114
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 15 Nov 2021 15 Nov 2021 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 Nov 2021 30 Sep 2021 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Nov 2021 15 Nov 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 21 Sep 2021 333-253114
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 17 Sep 2021 30 Aug 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 13 Sep 2021 333-253114
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 13 Sep 2021 13 Sep 2021 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 13 Sep 2021 13 Sep 2021 001-38742
SC 13G Open SC 13G document View SEC filing for SC 13G 09 Sep 2021 005-90727
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Sep 2021 01 Sep 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 01 Sep 2021 333-253114
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Sep 2021 30 Aug 2021 001-38742
4 Open 4 document View SEC filing for 4 FORM 4 26 Aug 2021 24 Aug 2021
424B3 Open 424B3 document View SEC filing for 424B3 424B3 18 Aug 2021 333-253114
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 18 Aug 2021 13 Aug 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 12 Aug 2021 333-253114
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Aug 2021 30 Jun 2021 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Aug 2021 12 Aug 2021 001-38742
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 20 Jul 2021 02 Jul 2021
424B3 Open 424B3 document View SEC filing for 424B3 424B3 06 Jul 2021 333-253114
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Jul 2021 01 Jul 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 25 Jun 2021 333-253114
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Jun 2021 25 Jun 2021 001-38742
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 16 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2021 11 Jun 2021
S-8 Open S-8 document View SEC filing for S-8 S-8 10 Jun 2021 333-256986
424B3 Open 424B3 document View SEC filing for 424B3 424B3 10 Jun 2021 333-253114
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 10 Jun 2021 08 Jun 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 07 Jun 2021 333-253114
8-K Open 8-K document View SEC filing for 8-K 8-K 07 Jun 2021 07 Jun 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 20 May 2021 333-253114
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 20 May 2021 31 Mar 2021 001-38742
8-K Open 8-K document View SEC filing for 8-K 8-K 20 May 2021 20 May 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 20 May 2021 333-253114
424B3 Open 424B3 document View SEC filing for 424B3 424B3 20 May 2021 333-253114
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 20 May 2021 04 Feb 2021 001-38742
10-K/A Open 10-K/A document | Open XBRL data View SEC filing for 10-K/A 10-K/A 20 May 2021 31 Dec 2020 001-38742
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 17 May 2021 001-38742
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 17 May 2021 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 May 2021 17 May 2021 001-38742
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 17 May 2021 31 Mar 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 07 May 2021 333-253114
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 07 May 2021 07 May 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 16 Apr 2021 333-253114
8-K Open 8-K document View SEC filing for 8-K 8-K 16 Apr 2021 12 Apr 2021 001-38742
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 15 Apr 2021 20 May 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 31 Mar 2021 333-253114
EFFECT Open EFFECT document View SEC filing for EFFECT 30 Mar 2021 333-253114
8-K Open 8-K document View SEC filing for 8-K 8-K 29 Mar 2021 29 Mar 2021 001-38742
CORRESP Open CORRESP document View SEC filing for CORRESP 26 Mar 2021
S-1/A Open S-1/A document | Open XBRL data View SEC filing for S-1/A S-1/A 26 Mar 2021 333-253114
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 26 Mar 2021 31 Dec 2020 001-38742
8-K/A Open 8-K/A document View SEC filing for 8-K/A 8-K/A 26 Mar 2021 04 Feb 2021 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 22 Feb 2021 18 Feb 2021 001-38742
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 18 Feb 2021
SC 13D Open SC 13D document View SEC filing for SC 13D SCHEDULE 13D FOR ADVENT TECHNOLOGIES HOLDINGS, INC. ON BEHALF OF VASSILIOS GREGO 16 Feb 2021 005-90727
SC 13D Open SC 13D document View SEC filing for SC 13D SCHEDULE 13D FOR ADVENT TECHNOLOGIES HOLDINGS, INC. ON BEHALF OF CHRISTOS KASKAV 16 Feb 2021 005-90727
S-1 Open S-1 document | Open XBRL data View SEC filing for S-1 S-1 16 Feb 2021 333-253114
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A ADVENT TECHNOLOGIES INC. 11 Feb 2021 005-90727
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMCI ACQUISITION CORP. 11 Feb 2021 005-90727
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 09 Feb 2021 04 Feb 2021 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 09 Feb 2021 04 Feb 2021 001-38742
SC 13G Open SC 13G document View SEC filing for SC 13G 08 Feb 2021 005-90727
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 05 Feb 2021 04 Feb 2021
25-NSE Open 25-NSE document View SEC filing for 25-NSE 05 Feb 2021 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Feb 2021 04 Feb 2021 001-38742
SC 13G Open SC 13G document View SEC filing for SC 13G 03 Feb 2021 005-90727
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Feb 2021 02 Feb 2021 001-38742
424B3 Open 424B3 document View SEC filing for 424B3 424B3 20 Jan 2021 333-250946
EFFECT Open EFFECT document View SEC filing for EFFECT 19 Jan 2021 333-250946
CORRESP Open CORRESP document View SEC filing for CORRESP 15 Jan 2021
CORRESP Open CORRESP document View SEC filing for CORRESP 14 Jan 2021
S-4/A Open S-4/A document | Open XBRL data View SEC filing for S-4/A S-4/A 14 Jan 2021 333-250946
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 12 Jan 2021
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 11 Jan 2021 005-90727
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Jan 2021 05 Jan 2021 001-38742
425 Open 425 document View SEC filing for 425 425 06 Jan 2021 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Jan 2021 31 Dec 2020 001-38742
S-4/A Open S-4/A document | Open XBRL data View SEC filing for S-4/A S-4/A 31 Dec 2020 333-250946
CORRESP Open CORRESP document View SEC filing for CORRESP 31 Dec 2020
425 Open 425 document View SEC filing for 425 425 22 Dec 2020 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Dec 2020 22 Dec 2020 001-38742
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 21 Dec 2020
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMCI 13G/A 07 Dec 2020 005-90727
4 Open 4 document View SEC filing for 4 03 Dec 2020 01 Dec 2020
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMCI ACQUISITION CORP. 03 Dec 2020 005-90727
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Dec 2020 30 Nov 2020
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Dec 2020 27 Nov 2020
3 Open 3 document View SEC filing for 3 30 Nov 2020 15 May 2020
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 25 Nov 2020 24 Nov 2020
425 Open 425 document View SEC filing for 425 425 25 Nov 2020 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Nov 2020 25 Nov 2020 001-38742
S-4 Open S-4 document | Open XBRL data View SEC filing for S-4 S-4 24 Nov 2020 333-250946
RW Open RW document View SEC filing for RW FORM RW 24 Nov 2020 333-249988
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Nov 2020 30 Sep 2020 001-38742
S-4 Open S-4 document | Open XBRL data View SEC filing for S-4 S-4 09 Nov 2020 333-249988
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 09 Nov 2020 30 Sep 2020 001-38742
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 21 Oct 2020 19 Oct 2020
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 20 Oct 2020 16 Oct 2020
425 Open 425 document View SEC filing for 425 425 20 Oct 2020 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 Oct 2020 19 Oct 2020 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 Oct 2020 16 Oct 2020 001-38742
425 Open 425 document View SEC filing for 425 425 16 Oct 2020 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Oct 2020 12 Oct 2020 001-38742
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 15 Oct 2020 13 Oct 2020
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 13 Oct 2020 001-38742
425 Open 425 document View SEC filing for 425 425 13 Oct 2020 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 13 Oct 2020 13 Oct 2020 001-38742
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 01 Oct 2020 16 Oct 2020 001-38742
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 24 Sep 2020 22 Sep 2020
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA 14A 22 Sep 2020 001-38742
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Sep 2020 22 Sep 2020 001-38742
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 18 Sep 2020 16 Sep 2020
PRE 14A Open PRE 14A document View SEC filing for PRE 14A PRE14A 18 Sep 2020 18 Sep 2020 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 Aug 2020 30 Jun 2020 001-38742
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 27 May 2020 22 May 2020
8-K Open 8-K document View SEC filing for 8-K 8-K 21 May 2020 20 May 2020 001-38742
8-K Open 8-K document View SEC filing for 8-K 8-K 15 May 2020 15 May 2020 001-38742
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 11 May 2020 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 11 May 2020 31 Mar 2020 001-38742
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMCI 08 May 2020 005-90727
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 08 May 2020 001-38742
8-K Open 8-K document View SEC filing for 8-K 8-K 08 May 2020 07 May 2020 001-38742
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 28 Apr 2020 15 May 2020 001-38742
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 27 Apr 2020 17 Apr 2020
PRE 14A Open PRE 14A document View SEC filing for PRE 14A PRE 14A 17 Apr 2020 17 Apr 2020 001-38742
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 13 Apr 2020 005-90727
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMCI 13G/A 03 Apr 2020 005-90727
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 27 Mar 2020 25 Mar 2020
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 27 Mar 2020 31 Dec 2019 001-38742
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 26 Mar 2020 24 Mar 2020
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 26 Mar 2020 24 Mar 2020
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMCI 20 Mar 2020 005-90727
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 20 Mar 2020 10 Mar 2020
NT 10-K Open NT 10-K document View SEC filing for NT 10-K NT 10-K 17 Mar 2020 31 Dec 2019 001-38742
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Feb 2020 005-90727
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AQR CAPITAL MANAGEMENT LLC 14 Feb 2020 005-90727
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMCI ACQUISITION CORP. 13 Feb 2020 005-90727
SC 13G Open SC 13G document View SEC filing for SC 13G 11 Feb 2020 005-90727
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 07 Feb 2020 005-90727
8-K Open 8-K document View SEC filing for 8-K 8-K 16 Dec 2019 16 Dec 2019 001-38742
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 29 Nov 2019 16 Dec 2019 001-38742
8-K Open 8-K document View SEC filing for 8-K 8-K 19 Nov 2019 19 Nov 2019 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Nov 2019 30 Sep 2019 001-38742
SC 13G Open SC 13G document View SEC filing for SC 13G 09 Oct 2019 005-90727
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Aug 2019 30 Jun 2019 001-38742
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 May 2019 31 Mar 2019 001-38742
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 01 Apr 2019 31 Dec 2018 001-38742
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 13 Feb 2019 005-90727
SC 13G Open SC 13G document View SEC filing for SC 13G 11 Feb 2019 005-90727
SC 13G Open SC 13G document View SEC filing for SC 13G AMCI 13G 01 Feb 2019 005-90727
8-K Open 8-K document View SEC filing for 8-K 8-K 21 Dec 2018 21 Dec 2018 001-38742
8-K Open 8-K document View SEC filing for 8-K 8-K 30 Nov 2018 27 Nov 2018 001-38742
4 Open 4 document View SEC filing for 4 FORM 4 29 Nov 2018 27 Nov 2018
8-K Open 8-K document View SEC filing for 8-K 8-K 27 Nov 2018 20 Nov 2018 001-38742
SC 13G Open SC 13G document View SEC filing for SC 13G AMCI ACQUISITION CORP. 26 Nov 2018 005-90727
SC 13G Open SC 13G document View SEC filing for SC 13G AQR CAPITAL MANAGEMENT LLC 26 Nov 2018 005-90727
SC 13G Open SC 13G document View SEC filing for SC 13G AMCI ACQUISITION CORP. 26 Nov 2018 005-90727
8-K Open 8-K document View SEC filing for 8-K 8-K 20 Nov 2018 15 Nov 2018 001-38742
424B4 Open 424B4 document View SEC filing for 424B4 424B4 16 Nov 2018 333-227994
EFFECT Open EFFECT document View SEC filing for EFFECT 15 Nov 2018 333-227994
3 Open 3 document View SEC filing for 3 FORM 3 15 Nov 2018 15 Nov 2018
3 Open 3 document View SEC filing for 3 FORM 3 15 Nov 2018 15 Nov 2018
3 Open 3 document View SEC filing for 3 FORM 3 15 Nov 2018 15 Nov 2018
3 Open 3 document View SEC filing for 3 FORM 3 15 Nov 2018 15 Nov 2018
3 Open 3 document View SEC filing for 3 FORM 3 15 Nov 2018 15 Nov 2018
3 Open 3 document View SEC filing for 3 FORM 3 15 Nov 2018 15 Nov 2018
3 Open 3 document View SEC filing for 3 FORM 3 15 Nov 2018 15 Nov 2018
CERT Open CERT document View SEC filing for CERT 15 Nov 2018 001-38742
CORRESP Open CORRESP document View SEC filing for CORRESP 14 Nov 2018
CORRESP Open CORRESP document View SEC filing for CORRESP 14 Nov 2018
8-A12B Open 8-A12B document View SEC filing for 8-A12B FORM 8-A12B 14 Nov 2018 001-38742
S-1/A Open S-1/A document View SEC filing for S-1/A FORM S-1/A 09 Nov 2018 333-227994
S-1 Open S-1 document View SEC filing for S-1 S1 25 Oct 2018 333-227994
DRSLTR Open DRSLTR document View SEC filing for DRSLTR 17 Aug 2018
DRS/A Open DRS/A document View SEC filing for DRS/A 17 Aug 2018 377-02183
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 14 Aug 2018
DRS Open DRS document View SEC filing for DRS 20 Jul 2018 377-02183

About this filer

ADVENT TECHNOLOGIES HOLDINGS, INC. files with the SEC under CIK 0001744494. This page aggregates EDGAR filings and related ownership activity.

Industry: Miscellaneous Electrical Machinery, Equipment & Supplies.

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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