Highest-materiality recent filing
Advent subsidiary's hydrogen project EL02 Green HIPo withdrawn from EU IPCEI program
Letter received May 14, 2026 from Greek Ministry of Development.
Advent Technologies secures CHF 500,000 secured note; appoints lender Chris Antonopoulos to board
Secured promissory note of CHF 500,000 at 8.5% interest, due Jan 7, 2027; secured by all assets and IP.
Advent Technologies repays $235K promissory note; agreement terminated
Repaid $235,000 principal plus 12% annual interest on convertible note with $25,000 original issue discount.
Advent Technologies directors resign; Nasdaq delisting starts Oct 28, effective Oct 30
Directors Marc Seelenfreund (Oct 29) and Joseph Celia (Oct 30) resigned; no disagreement cited.
Advent Technologies receives Nasdaq delisting notice; trading suspended Oct 30, 2025
Nasdaq to delist common stock and warrants for failure to comply with Listing Rule 5550(b)(1).
Advent Technologies shareholders approve all proposals at 2025 annual meeting
Elected directors Seelenfreund, Lukash, Celia; 878K-900K votes for each, ~200K broker non-votes.
Advent Technologies repays $418K promissory note in full, terminating agreement
Repaid all amounts owed under $418K convertible promissory note (incl. $42K OID) with 0% interest.
Advent Technologies enters $418K convertible note financing with Hudson Global Ventures
Principal $418,000 with $42,000 OID, net proceeds $376,000; 12% annual interest.
Advent Technologies receives Nasdaq delist notice over stockholders' equity non-compliance
Nasdaq Staff determined Advent failed to regain compliance with Listing Rule 5550(b)(1) requiring at least $2,500,000 stockholders' equity.
Advent Technologies enters $52M equity line with Hudson at 84% of market price
Up to $52M of common stock may be sold to Hudson over 24 months; initial price at 84% of prior day close.
Advent gains exclusive license to Los Alamos Ion Pair tech in marine, aviation, portable power
New agreement with TRIAD National Security grants exclusivity for Ion Pair technology in marine, aviation, and portable power fields.
Advent Tech enters $235K convertible loan with Hudson; settles $12.25M claim for €100K
Loan principal $235,000 (net $210,000 after $25,000 OID); 12% interest, 11 monthly payments of $23,927.27 starting Sept 2025.
Advent settles Fischer arbitration for €5.37M; regains Nasdaq compliance
Settlement amount €5.37M payable in monthly installments of €35k from Sept 2025; reduced to €4.37M if paid by June 30, 2026.
Advent Technologies receives Nasdaq delisting notice for missing 10-Q and 10-K deadlines
Nasdaq notified Advent on May 22, 2025 of non-compliance with Listing Rule 5250(c)(1) due to late 10-Q (March 31, 2025) and 10-K (Dec 31, 2024).
Advent Technologies receives Nasdaq notice for late 2024 10-K filing
Nasdaq letter dated April 16, 2025 cites non-compliance with Listing Rule 5250(c)(1).
Advent Technologies says stockholders' equity now exceeds $2.5M Nasdaq minimum
Company believes it has regained Nasdaq continued listing compliance as of April 15, 2025.
Advent Technologies signs €34.5M EU Innovation Fund grant for RHyno hydrogen project
Signed grant agreement with CINEA for €34,534,318 non-dilutive funding from EU Innovation Fund.
Advent Technologies annual meeting: Schwartz elected, auditor ratified, other business rejected
Robert Schwartz elected Class I director: 320,810 for, 336,605 withheld, 729,876 broker non-votes.
Advent Technologies clarifies former CEO Gregoriou also removed from board
Vassilios Gregoriou terminated as CEO and Acting CFO effective Oct 24, 2024.
Nasdaq letter dated Nov 22, 2024 citing failure to file Q3 2024 10-Q by Nov 20 deadline.
Advent Technologies corrects Board director classification oversight
Gary Herman reclassified from Class I to Class III Director.
Advent Technologies terminates $1M note deal as investor fails to fund; adds two directors
Terminated Securities Purchase Agreement for $1M senior promissory note and $2M revolving credit line.
Advent Technologies terminates Chief Strategy Officer Christos Kaskavelis for cause
Christos Kaskavelis terminated as Chief Strategy Officer effective October 29, 2024, for cause.
Vassilios Gregoriou terminated as CEO and acting CFO for cause, effective October 24, 2024.
Advent Technologies faces Nasdaq delisting over negative stockholders' equity of $2.9M
Nasdaq notified Advent on Oct 18, 2024 that stockholders' equity of ($2,879,000) fails the minimum $2.5M requirement.
Advent Technologies regains Nasdaq compliance after filing delinquent 10-Qs
Company received Nasdaq deficiency notices on May 24 and Aug 28, 2024 for missing Q1 and Q2 10-Qs.
Advent Technologies dismisses EY as auditor, appoints M&K; EY letter attached
EY dismissed as independent auditor on Sept 17, 2024; M&K CPAS appointed on Sept 20, 2024.
Advent Technologies dismisses EY as auditor, appoints M&K; loses EU grant eligibility
Ernst & Young (EY) resigned as auditor on Sept 17, 2024; Audit Committee appointed M&K CPAS, PLLC on Sept 20.
Nasdaq granted exception until Oct 14, 2024 to file Q1 and Q2 10-Qs; annual report deficiency resolved.
Advent Technologies faces €4.5M arbitration award; plans to appeal
Arbitration award in favor of F.E.R. for approximately €4.5 million.
Advent Technologies Q4 2023 net loss $25.7M; revenue down 3.6% YoY; strategic pivot to MEA licensing
Q4 2023 revenue + grants of $2.3M, down 3.6% YoY; full year revenue + grants $7.4M, down 20.9% YoY.
Advent Technologies Enters $1M Debt Deal, Three Investor-Nominated Directors Appointed
Advent Technologies signed a Securities Purchase Agreement with an institutional investor for a $1,000,000 senior promissory note at 18% interest, due in one year.
Danish subsidiary Advent Technologies A/S declared bankrupt under Denmark Bankruptcy Act
On July 25, 2024, Advent Technologies A/S was declared bankrupt under the Denmark Bankruptcy Act.
Advent Technologies terminates Boston HQ lease, targets $24M cost reduction and break-even by 2025
Terminated Boston HQ lease effective June 30, 2024; pays landlord $737,921.99; HQ moves to Livermore, CA.
Advent Technologies receives Nasdaq deficiency notice for late Q1 10-Q filing
Nasdaq notified Advent on May 24, 2024, of non-compliance with Listing Rule 5250(c)(1) due to late Form 10-Q.
Advent Technologies targets $13M revenue in 2024, aims for break-even by end 2025
2024 revenue target $13M ($11M revenue+$2M grants); goal to break even by end 2025.
Advent Technologies implements 1-for-30 reverse stock split effective May 13, 2024
Effective May 13, 2024, every 30 shares of common stock combined into 1 share; cash paid for fractional shares at $3.105/share.
Advent Technologies announces 1-for-30 reverse stock split effective May 14, 2024
Reverse stock split ratio of 1-for-30, effective at open on May 14, 2024.
Advent Technologies approves 1-for-30 reverse stock split to meet Nasdaq minimum bid
Stockholders approved reverse stock split at ratio range 1-for-2 to 1-for-30; board set ratio at 1-for-30.
Advent Technologies receives Nasdaq deficiency notice for late 10-K filing
Nasdaq notified Advent on April 17, 2024 that it missed the March 31 deadline to file its 2023 Form 10-K.
Advent CFO Naiem Hussain resigns effective March 11, 2024; external interim CFO sought
CFO Naiem Hussain resigned from Advent Technologies Holdings, effective March 11, 2024.
Effective as of November 4, 2024, Advent Technologies Holdings, Inc. (the “Company”) appointed Messrs. Seth M. Lukash and Joseph P. Celia to the Company’s Board of Directors as Class II directors.
Effective as of November 4, 2024, Advent Technologies Holdings, Inc. (the “Company”) appointed Messrs. Seth M. Lukash and Joseph P. Celia to the Company’s Board of Directors as Class II directors.
approved the termination of the employment of Christos Kaskavelis, Chief Strategy Officer of the Company, for cause, effective immediately.
On October 24, 2024, the Board of Directors (the “Board”) of Advent Technologies Holdings, Inc. (the “Company”) approved the termination of the employment of Vassilios Gregoriou, the Chief Executive Officer, Acting Chief Financial Officer, for cause, effective immediately.
the Company’s board of directors appointed Mr. Gary Herman, who is currently serving as the Company’s Class I Director, to the additional role of interim chief executive officer, effective immediately
each of Nora Goudroupi, Wayne Threatt, Von McConnell, Larry Epstein and Anggelos Skutaris resigned as directors of the Company
each of Nora Goudroupi, Wayne Threatt, Von McConnell, Larry Epstein and Anggelos Skutaris resigned as directors of the Company
each of Nora Goudroupi, Wayne Threatt, Von McConnell, Larry Epstein and Anggelos Skutaris resigned as directors of the Company
each of Nora Goudroupi, Wayne Threatt, Von McConnell, Larry Epstein and Anggelos Skutaris resigned as directors of the Company
the Company’s Board of Directors appointed Gary Herman as a Class I Director and Marc Seelenfreund and Avtar Dhaliwal as Class II directors.
the Company’s Board of Directors appointed Gary Herman as a Class I Director and Marc Seelenfreund and Avtar Dhaliwal as Class II directors.
the Company’s Board of Directors appointed Gary Herman as a Class I Director and Marc Seelenfreund and Avtar Dhaliwal as Class II directors.
Max materiality 1.00 · Median 0.70 · Most common event other_material