UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): May 24, 2023

ADVENT TECHNOLOGIES HOLDINGS, INC.

(Exact name of registrant as specified in its charter)

500 Rutherford Avenue, Suite 102

Boston, MA 02129

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (617) 655-6000

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

On May 24, 2023, Advent Technologies Holdings, Inc. (the “Company”) received a letter from the Listing Qualifications Staff (the “Staff”) of the Nasdaq Stock Market LLC (“Nasdaq”) indicating that the bid price of the Company’s common stock, par value $0.0001 per share (the “Common Stock”), had closed below $1.00 per share for 30 consecutive business days and, as a result, the Company is not in compliance with Nasdaq Listing Rule 5550(a)(2), which sets forth the minimum bid price requirement for continued listing on the Nasdaq Capital Market (the “Minimum Bid Requirement”). Nasdaq’s notice has no immediate effect on the listing of the Company’s Common Stock on Nasdaq.

Pursuant to Nasdaq Listing Rule 5810(c)(3)(A), the Company has 180 calendar days, until November 20, 2023, to regain compliance with the Minimum Bid Requirement. To regain compliance, the closing bid price of the Company’s Common Stock must be at least $1.00 per share for a minimum of 10 consecutive business days during this 180-day period, at which time the Staff will provide written notification to the Company that it complies with the Minimum Bid Requirement, unless the Staff exercises its discretion to extend this ten-day period pursuant to Nasdaq Listing Rule 5810(c)(3)(H).

If the Company does not regain compliance with the bid price requirement by November 20, 2023, the Company may be eligible for an additional 180-calendar day compliance period so long as it satisfies the criteria for initial listing on the Nasdaq Capital Market, except the Minimum Bid Requirement, and the continued listing requirement for market value of publicly held shares and the Company provides written notice to Nasdaq of its intention to cure the deficiency during the second compliance period by effecting a reverse stock split, if necessary. In the event it appears to Staff that the Company will not be able to cure the deficiency, or if the Company is not otherwise eligible for the second grace period, the Staff will provide written notice that the Common Stock is subject to delisting; however, the Company may request a hearing before the Nasdaq Hearings Panel (the “Panel”), which request, if timely made, would stay any further suspension or delisting action by the Staff pending the conclusion of the hearing process and expiration of any extension that may be granted by the Panel. There can be no assurance that the Company will be eligible for the additional 180 calendar day compliance period, if applicable, that the Staff would grant the Company’s request for continued listing subsequent to any delisting notification, or, if the Company does appeal the delisting determination by the Staff to the Panel, that such appeal would be successful, or that the Company will be able to regain compliance with the Minimum Bid Requirement or maintain compliance with the other Nasdaq listing requirements.

The Company intends to closely monitor the closing bid price of the Common Stock and consider all available options to remedy the bid price deficiency to regain compliance with the Minimum Bid Requirement.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.