STOCK TITAN

ADN, ADNWW to trade OTC after Nasdaq delisting proceedings

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Advent Technologies Holdings, Inc. reported it received a notice from Nasdaq that the exchange will commence proceedings to delist its common stock and public warrants for failure to comply with Nasdaq Listing Rule 5550(b)(1). Trading in both securities will be suspended effective October 30, 2025.

Nasdaq will apply to the SEC to complete the delisting process. The company’s common stock is expected to continue trading on the OTC market under the symbol ADN, and its public warrants are expected to trade on the OTC under ADNWW.

Positive

  • None.

Negative

  • Nasdaq delisting proceedings and trading suspension effective October 30, 2025

Insights

Nasdaq to suspend ADN/ADNWW on October 30, 2025; shift to OTC.

Advent Technologies disclosed a Nasdaq notice initiating delisting proceedings for noncompliance with Listing Rule 5550(b)(1). Nasdaq will suspend trading in the common stock and public warrants on October 30, 2025 and apply to the SEC to delist the securities.

The filing states the securities are expected to trade on the OTC market as ADN and ADNWW. Actual market activity will depend on broker access and investor participation once the OTC quotation is in place.

The key near-term milestone is the October 30, 2025 suspension date, after which investors would locate the securities under the stated OTC tickers. Subsequent SEC processing will formalize the delisting noted in the notice.

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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): October 29, 2025

 

 

 

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.)

 

5637 La Ribera St.

Suite A

Livermore, CA 94550

(Address of principal executive offices) (Zip Code)

 

Registrant’s telephone number, including area code: (925) 455-9400

 

 

 

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   AND*   The Nasdaq Stock Market LLC*
Warrants to purchase one share of common stock, each at an exercise price of $345.00   ADNWW*   The Nasdaq Stock Market LLC*

 

*On October 28, 2025, The Nasdaq Stock Market LLC determined to commence proceedings to delist and suspend trading in Advent Technologies Holdings, Inc.’s common stock, par value $0.0001 per share, and warrants to purchase one share of common stock, each at an exercise price of $345.00, with such trading suspension to become effective as of October 30, 2025.

 

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 October 28, 2025, Advent Technologies Holdings, Inc. (the “Company”) received a notice (the “Notice”) from The Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that, due to the Company’s failure to comply with Nasdaq Listing Rule 5550(b)(1), Nasdaq determined to (a) commence proceedings to delist the Company’s common stock, par value $0.0001 per share (“Common Stock”) and the Company’s warrants to purchase one share of common stock, each at an exercise price of $345.00 (the “Public Warrants” and, together with the Common Stock, the “Securities”) and (b) suspend trading in the Securities effective as of October 30, 2025.

 

Nasdaq will apply to the U.S. Securities and Exchange Commission to delist the Securities upon completion of all applicable procedures.

 

The Common Stock is expected to continue trading on the OTC market under the symbol “ADN,” and the Public Warrants are expected to continue trading on the OTC market under the symbol “ADNWW.”

 

Forward-Looking Statements

 

This report contains forward-looking statements, which reflect our current views with respect to, among other things, our operations and financial performance. All statements other than statements of historical facts contained in this report, including statements regarding our future results of operations and financial position, business strategy and plans and our objectives for future operations, are forward-looking statements. The words “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “expect,” “should,” “could,” “target,” “predict,” “seek” and similar expressions are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy, short- and long-term business operations and objectives, and financial needs. These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including those described in “Item 1.A Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the Securities and Exchange Commission on June 6, 2025. Moreover, we operate in a very competitive and rapidly changing environment and new risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties and assumptions, the forward-looking events and circumstances discussed in this report may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements.

 

 1 

 

 

SIGNATURES

 

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

 

Dated: October 29, 2025

 

  Advent Technologies Holdings, Inc.
     
  By: /s/ Gary Herman
  Name: Gary Herman
  Title: Chief Executive Officer

 

 2 

FAQ

What did ADN disclose in this 8-K?

The company received a Nasdaq notice commencing delisting proceedings for its common stock and public warrants due to noncompliance with Nasdaq Listing Rule 5550(b)(1).

When will trading in ADN and ADNWW be suspended on Nasdaq?

Nasdaq will suspend trading in the securities effective October 30, 2025.

Which Advent securities are affected?

The common stock (par value $0.0001) and public warrants (each with a $345.00 exercise price).

Where are ADN and ADNWW expected to trade after suspension?

They are expected to trade on the OTC market under the symbols ADN and ADNWW.

What is the next step in the delisting process?

Nasdaq will apply to the SEC to delist the securities upon completion of applicable procedures.
Advent Technologies Holdng Inc

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