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ADNH

Advent Technologies Holdings, Inc.

ADNH OTC Miscellaneous Electrical Machinery, Equipment & Supplies EDGAR ↗

$0.35

+0.35 +116566.66%

Key statistics

from XBRL data in SEC filings

Market cap

$1.33M

Revenue (TTM)

$49.0K

Net income (TTM)

-$289K

EPS (TTM)

$-0.46

P/E ratio

—

Dividend yield

—

Free cash flow

—

Cash

$468K

Total assets

$6.68M

Gross margin

-3436.7%

52-week range

$0.21 – $6.18

Recent SEC filings

40 most recent

Annual, quarterly & current reports

8-K Other events Jul 22, 2026 8-K Other events May 15, 2026 8-K Entered a material agreement; Unregistered sale of equity; Director or officer change Jan 15, 2026 10-Q Quarter ended 2025-09-30 Nov 17, 2025 8-K Terminated a material agreement Nov 10, 2025 8-K Director or officer change Nov 3, 2025 8-K Delisting notice or listing-rule failure Oct 29, 2025 8-K Shareholder vote results Oct 22, 2025 8-K Terminated a material agreement Sep 12, 2025 8-K Entered a material agreement; Unregistered sale of equity Sep 4, 2025 8-K Delisting notice or listing-rule failure Aug 22, 2025 8-K Entered a material agreement; Unregistered sale of equity Aug 18, 2025 10-Q Quarter ended 2025-06-30 Aug 12, 2025 8-K Other events Aug 12, 2025 8-K Entered a material agreement; Unregistered sale of equity; Other events Aug 7, 2025 8-K Entered a material agreement; Other events Jul 3, 2025 10-Q Quarter ended 2025-03-31 Jun 30, 2025 10-K Fiscal year ended 2024-12-31 Jun 6, 2025 8-K Delisting notice or listing-rule failure May 27, 2025 8-K Delisting notice or listing-rule failure; Regulation FD disclosure Apr 17, 2025 8-K Other events Apr 15, 2025 8-K Other events Mar 11, 2025 8-K Shareholder vote results Jan 2, 2025 10-Q Quarter ended 2024-09-30 Dec 27, 2024 8-K/A Director or officer change Dec 18, 2024 8-K Delisting notice or listing-rule failure Nov 27, 2024 8-K Other events Nov 26, 2024 8-K Terminated a material agreement; Director or officer change Nov 8, 2024 8-K Director or officer change Oct 29, 2024 8-K Director or officer change Oct 24, 2024 8-K Delisting notice or listing-rule failure Oct 23, 2024 8-K Other events Oct 21, 2024 10-Q Quarter ended 2024-06-30 Oct 15, 2024 10-Q Quarter ended 2024-03-31 Oct 15, 2024 8-K/A Changed accountants Oct 2, 2024 8-K Changed accountants; Other events Sep 20, 2024 8-K Delisting notice or listing-rule failure; Director or officer change; Regulation FD disclosure Sep 5, 2024 8-K Other events Aug 22, 2024 8-K Results of operations (earnings release); Regulation FD disclosure Aug 20, 2024 10-K Fiscal year ended 2023-12-31 Aug 13, 2024