ADVENT TECHNOLOGIES HOLDINGS, INC.

Advent Technologies Holdings, Inc. (Nasdaq: ADN) is a fuel-cell and hydrogen-energy company that reached the public markets through its merger with AMCI Acquisition Corp., a blank-check vehicle sponsored by AMCI Group that completed its IPO in 2020. The transaction closed in February 2021, bringing Advent's advanced membrane and fuel-cell stack technology into the clean-energy public-market arena. The company has operated in the hydrogen and fuel-cell sector, supplying components for transportation, defense, and stationary power applications. As of its October 2025 8-K filing, Advent Technologies remains an active SEC reporting company navigating ongoing operational and financial developments. Visit SpacDesk and sign up for full filings, financials, and post-merger tracking on ADN and hundreds of other SPAC-origin companies.