Every 8-K that ADVENT TECHS HLDGS INC (ADNH) has filed with the SEC in the last 24 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 8-K covers material events a company has to report between its quarterly reports, so if you follow ADNH and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full ADNH filings page.
Advent Technologies Holdings, Inc. reports that on July 20, 2026 it received a notification from OTC Markets Group that its common stock, par value $0.0001 per share, has been moved to the OTC Expert Market on an unsolicited quotes only basis. This change affects the market tier on which the company’s common stock is quoted.
Advent Technologies Holdings, Inc. reports that its wholly owned subsidiary, Advanced Energy Technologies Single Member SA, received a notification from the Hellenic Republic Ministry of Development concerning its hydrogen project. The letter states that Project EL02 Green HIPo has been withdrawn from the Hydrogen IPCEI Hy2 Tech wave program due to a failure to meet certain internal requirements. This means the project will no longer participate in that European hydrogen innovation framework, which may affect how Advent advances this specific initiative.
Advent Technologies Holdings, Inc. entered into a secured promissory note with Chris Antonopoulos for an aggregate principal amount of CHF 500,000, bearing annual interest of 8.5% and maturing on January 7, 2027. The note is secured by a first-priority security interest in certain company collateral and may be prepaid at any time without penalty.
At the lender’s option, amounts due can be converted into common stock at a price equal to the average of the three lowest trading prices during the 30 days before each conversion date. All outstanding principal and interest automatically convert into common stock upon a “Qualified Financing” that raises at least $25,000,000. The company received the funds on January 14, 2026 and plans to use them for corporate expenses and general working capital.
The terms provide for adjustments if the company later sells equity on more favorable terms. In connection with the note, Advent appointed Mr. Antonopoulos to its Board as a Class II director, serving until the 2028 annual shareholders’ meeting or his earlier departure.