ADVENT TECHNOLOGIES HOLDINGS, INC. (ADNH) Historical Stock Prices
ADVENT TECHNOLOGIES HOLDINGS, INC. (ADNH) is a publicly traded company, categorized under SIC 3690 (Miscellaneous Electrical Machinery, Equipment & Supplies). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.
Ticker: ADNH
CIK: 1744494
SIC 3690: Miscellaneous Electrical Machinery, Equipment & Supplies
Fiscal Year End: 12/31
State: DE
Independent PCAOB Auditor
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Audit Firm
M&K CPAS, PLLC
Auditor SinceSince 12/31/2024 12:00:00 AM
Lead Engagement PartnerCasey Kinchen
Audit LocationThe Woodlands, Texas, United States
Latest SEC EDGAR Filings
Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions| Form | Filing Date | Reporting Period | Description | Accession Number | Actions |
|---|---|---|---|---|---|
| 8-K | 2026-07-22 | 2026-07-20 | 8-K | 0001829126-26-007750 | View SEC Doc Filr Page |
| 8-K | 2026-05-15 | 2026-05-14 | 8-K | 0001829126-26-005363 | View SEC Doc Filr Page |
| NT 10-K | 2026-03-31 | 2025-12-31 | NT 10-K | 0001829126-26-002882 | View SEC Doc Filr Page |
| 25-NSE | 2026-01-21 | — | 25-NSE Filing | 0001354457-26-000064 | View SEC Doc Filr Page |
| 25-NSE | 2026-01-21 | — | 25-NSE Filing | 0001354457-26-000062 | View SEC Doc Filr Page |
| 8-K | 2026-01-15 | 2026-01-08 | 8-K | 0001829126-26-000309 | View SEC Doc Filr Page |
| 10-Q | 2025-11-17 | 2025-09-30 | 10-Q | 0001829126-25-009258 | View SEC Doc Filr Page |
| NT 10-Q | 2025-11-14 | 2025-09-30 | NT 10-Q | 0001829126-25-009230 | View SEC Doc Filr Page |
| 8-K | 2025-11-10 | 2025-11-05 | 8-K | 0001829126-25-008952 | View SEC Doc Filr Page |
| 8-K | 2025-11-03 | 2025-10-29 | 8-K | 0001829126-25-008803 | View SEC Doc Filr Page |
| 8-K | 2025-10-29 | 2025-10-29 | 8-K | 0001829126-25-008497 | View SEC Doc Filr Page |
| 8-K | 2025-10-22 | 2025-10-22 | 8-K | 0001829126-25-008326 | View SEC Doc Filr Page |
| DEF 14A | 2025-09-30 | 2025-10-22 | DEF 14A | 0001829126-25-007733 | View SEC Doc Filr Page |
| 8-K | 2025-09-12 | 2025-09-11 | 8-K | 0001829126-25-007376 | View SEC Doc Filr Page |
| 8-K | 2025-09-04 | 2025-08-28 | 8-K | 0001829126-25-007169 | View SEC Doc Filr Page |
| EFFECT | 2025-08-27 | — | EFFECT Filing | 9999999995-25-002763 | View SEC Doc Filr Page |
| 424B3 | 2025-08-27 | — | 424B3 | 0001829126-25-006762 | View SEC Doc Filr Page |
| CORRESP | 2025-08-25 | — | CORRESP Filing | 0001829126-25-006680 | View SEC Doc Filr Page |
| UPLOAD | 2025-08-25 | — | UPLOAD Filing | 0000000000-25-009038 | View SEC Doc Filr Page |
| 8-K | 2025-08-22 | 2025-08-18 | 8-K | 0001829126-25-006667 | View SEC Doc Filr Page |
| S-1 | 2025-08-18 | — | S-1 | 0001829126-25-006432 | View SEC Doc Filr Page |
| 8-K | 2025-08-18 | 2025-08-14 | 8-K | 0001829126-25-006402 | View SEC Doc Filr Page |
| 10-Q | 2025-08-12 | 2025-06-30 | 10-Q | 0001829126-25-006102 | View SEC Doc Filr Page |
| 8-K | 2025-08-12 | 2025-08-06 | 8-K | 0001829126-25-006101 | View SEC Doc Filr Page |
| 8-K | 2025-08-07 | 2025-08-01 | 8-K | 0001829126-25-005927 | View SEC Doc Filr Page |