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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): February 22, 2021 (February 18, 2021)

Advent Technologies Holdings, Inc.
(Exact name of registrant as specified in its charter)

Delaware | 001-38742 | 83-0982969
(State or other jurisdiction of incorporation) | (Commission File Number) | (IRS Employer Identification No.)

200 Clarendon Street
Boston, MA 02116
(Address of principal executive offices) (Zip Code)
Registrant’s telephone number, including area code: (857) 264-7035

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:

☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ | Soliciting material pursuant to Rule 14a−12 under the Exchange Act (17 CFR 240.14a−12)

☐ | Pre−commencement communications pursuant to Rule 14d−2(b) under the Exchange Act (17 CFR 240.14d−2(b))

☐ | Pre−commencement communications pursuant to Rule 13e−4(c) under the Exchange Act (17 CFR 240.13e− 4(c))

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

Title of each class |  | Trading Symbol |  | Name of each exchange on which registered
Common stock, par value $0.0001 per share |  | ADN |  | The Nasdaq Stock Market LLC
Warrants to purchase one share of common stock, each at an exercise price of $11.50 |  | ADNWW |  | The Nasdaq Stock Market LLC

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 8.01 Other Events
UltraCell Acquisition
On February 18, 2021, Advent Technologies Inc., a Delaware corporation (“Advent”) and wholly-owned subsidiary of Advent Technologies Holdings, Inc. (the “Company”), entered into a Membership Interest Purchase Agreement (the “Purchase Agreement”) with Bren-tronics, Inc. (“Seller”) and UltraCell, LLC, a Delaware limited liability company and a direct wholly-owned subsidiary of Seller (“UltraCell”). Pursuant to the Purchase Agreement, and subject to the terms and conditions therein, on February 18, 2021, Advent acquired 100% of the issued and outstanding membership interests in UltraCell.
Item 7.01 Regulation FD Disclosure
Press Release and Presentation
On February 22, 2021, the Company issued a press release and a presentation announcing the Purchase Agreement and the transactions contemplated therein. A copy of the press release and the presentation are furnished as Exhibits 99.1 and 99.2 hereto and are incorporated herein by reference.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.

Exhibit No. |  | Description
99.1 |  | Press Release issued by the Company on February 22, 2021 announcing the Purchase Agreement and the transactions contemplated therein.
99.2 |  | Presentation issued by the Company on February 22, 2021 announcing the Purchase Agreement and the transactions contemplated therein.

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

Date: February 22, 2021 | Advent Technologies Holdings, Inc.
| By: | /s/ Vassilios Gregoriou
| Name: | Vassilios Gregoriou
| Title: | Chairman and Chief Executive Officer