ADNH · Advent Technologies Holdings, Inc. · Off Exchange
Substantial doubt about the company's ability to continue as a going concern.
“Because of the uncertainty in securing additional funding, delays in growth of revenue, failure to materialize cost-cutting efforts and the insufficient amount of cash and cash equivalents as of the consolidated financial statement filing date, management has concluded that substantial doubt exists with respect to the Company's ability to continue as a going concern for one year from the date the consolidated financial statements are issued.”View the 10-Q filed Nov 17, 2025
3 customers — 10% of revenue (During the year ended December 31, 2024 and 2023)
“During the year ended December 31, 2024 and 2023, the Company had three 3 customers that represented more than 10% of its revenues.”
One customer — 10% of receivables (As of December 31, 2024)
“As of December 31, 2024 and 2023, the Company had one 1 and two 2 major customers, respectively, that represented more than 10% of our accounts receivable balance.”
2 customers — 10% of receivables (As of December 31, 2023)
“As of December 31, 2024 and 2023, the Company had one 1 and two 2 major customers, respectively, that represented more than 10% of our accounts receivable balance.”
Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.
Off-Exchange Volume History
| Week Start | ATS Volume | Non-ATS OTC Volume | Total Off-Exchange | % of FINRA Weekly Volume |
|---|---|---|---|---|
| 2026-08-31 | 0 | 53,590 | 53,590 | 100.0% |
| 2026-08-24 | 0 | 28 | 28 | — |
| 2026-08-17 | 0 | 6,335 | 6,335 | 100.0% |
| 2026-08-10 | 0 | 11,047 | 11,047 | 100.0% |
| 2026-08-03 | 0 | 2,358 | 2,358 | 100.0% |
| 2026-07-27 | 0 | 8,602 | 8,602 | 100.0% |
| 2026-07-20 | 0 | 59 | 59 | — |
| 2026-07-13 | 11,574 | 106,504 | 118,078 | 100.0% |
| 2026-07-06 | 5,691 | 124,358 | 130,049 | 100.0% |
| 2026-06-29 | 8,055 | 79,950 | 88,005 | 100.0% |
| 2026-06-22 | 9,668 | 49,401 | 59,069 | 100.0% |
| 2026-06-15 | 4,583 | 23,215 | 27,798 | 100.0% |
| 2026-06-08 | 6,076 | 25,569 | 31,645 | 100.0% |
| 2026-06-01 | 3,415 | 17,877 | 21,292 | 100.0% |
| 2026-05-25 | 1,084 | 66,406 | 67,490 | 100.0% |
| 2026-05-18 | 5,157 | 54,615 | 59,772 | 100.0% |
| 2026-05-11 | 6,727 | 32,752 | 39,479 | 100.0% |
| 2026-05-04 | 3,375 | 14,943 | 18,318 | 100.0% |
| 2026-04-27 | 2,230 | 13,300 | 15,530 | 100.0% |
| 2026-04-20 | 2,086 | 18,605 | 20,691 | 100.0% |
| 2026-04-13 | 777 | 14,741 | 15,518 | 100.0% |
| 2026-04-06 | 3,950 | 27,101 | 31,051 | 100.0% |
| 2026-03-30 | 27 | 16,230 | 16,257 | 100.0% |
| 2026-03-23 | 482 | 31,993 | 32,475 | 100.0% |
| 2026-03-16 | 3,331 | 20,578 | 23,909 | 100.0% |
| 2026-03-09 | 442 | 13,969 | 14,411 | 100.0% |
| 2026-03-02 | 4,217 | 9,374 | 13,591 | 100.0% |
| 2026-02-23 | 3,859 | 12,940 | 16,799 | 100.0% |
| 2026-02-16 | 13,356 | 40,582 | 53,938 | 100.0% |
| 2026-02-09 | 4,014 | 35,267 | 39,281 | 100.0% |
| 2026-02-02 | 1,367 | 27,020 | 28,387 | 100.0% |
| 2026-01-26 | 10,228 | 124,308 | 134,536 | 100.0% |
| 2026-01-19 | 10,803 | 36,902 | 47,705 | 100.0% |
| 2026-01-12 | 3,198 | 69,903 | 73,101 | 100.0% |
| 2026-01-05 | 908 | 34,337 | 35,245 | 100.0% |
| 2025-12-29 | 16,997 | 85,998 | 102,995 | 100.0% |
| 2025-12-22 | 5,764 | 21,896 | 27,660 | 100.0% |
| 2025-12-15 | 294 | 44,452 | 44,746 | 100.0% |
| 2025-12-08 | 28,845 | 106,168 | 135,013 | 100.0% |
| 2025-12-01 | 17,540 | 50,825 | 68,365 | 100.0% |
| 2025-11-24 | 511 | 66,622 | 67,133 | 100.0% |
| 2025-11-17 | 9,000 | 73,130 | 82,130 | 100.0% |
| 2025-11-10 | 33,956 | 147,792 | 181,748 | 100.0% |
| 2025-11-03 | 50,423 | 255,420 | 305,843 | 100.0% |