Advent Technologies Holdings ( (ADNH) ) has released a notification of late filing.
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Advent Technologies Holdings, Inc. has filed a Form 12b-25, notifying investors that it will delay its Form 10-K (Yearly Report) for the financial year ended December 31, 2025. The filing confirms that the delayed report is the company’s Annual Report on Form 10-K (Yearly Report), not a quarterly or foreign issuer filing.
The company attributes the delay primarily to the need for additional time to complete the final review of its financial statements and accompanying disclosures. Management states that filing the Form 10-K (Yearly Report) on the original deadline would have required unreasonable effort or expense, suggesting a heavy close process rather than a specific external shock.
Advent says it is working diligently to complete the Annual Report and expects to file the Form 10-K (Yearly Report) within fifteen calendar days after the prescribed due date. This timeline is consistent with the relief allowed under SEC Rule 12b-25(b) and signals that the company does not foresee a prolonged reporting disruption.
The notification indicates that Advent does not expect any significant change in results of operations compared with the prior fiscal year to be reflected in the upcoming earnings statements. No preliminary financial figures are provided, and the statement about expected stability in results should be viewed as forward-looking and subject to the usual risks and uncertainties.
The company also notes a recent pattern of delayed filings: both the March 31, 2025 and September 30, 2025 Form 10-Q (Quarter Report) filings were made a few days or weeks after their respective due dates. Advent emphasizes its intent to remain in compliance by using the permitted extension period and to complete the outstanding Form 10-K (Yearly Report) promptly.
The notification is signed on behalf of Advent Technologies Holdings, Inc. by Chief Executive Officer Gary Herman, dated March 31, 2026. His signature underscores management’s responsibility for the company’s reporting obligations and its commitment to resolving the current delay within the SEC’s grace period.
The most recent analyst rating on (ADNH) stock is a Sell with a $0.36 price target. To see the full list of analyst forecasts on Advent Technologies Holdings stock, see the ADNH Stock Forecast page.
Spark’s Take on ADNH Stock
According to Spark, TipRanks’ AI Analyst, ADNH is a Neutral.
The score is primarily weighed down by very weak financial performance (shrinking revenue, deeply negative profitability, negative free cash flow, and negative equity). Technical indicators also reflect a sustained downtrend with negative momentum, while valuation provides limited support due to losses and no dividend data.
To see Spark’s full report on ADNH stock, click here.
More about Advent Technologies Holdings
Average Trading Volume: 8,670
Technical Sentiment Signal: Sell
Current Market Cap: $1.4M
Learn more about ADNH stock on TipRanks’ Stock Analysis page.