Advent Technologies Holdings, Inc DEFA14A, filed Apr 25, 2023
Advent Technologies Holdings, Inc. (ADNH)
DEFA14A
2023-04-25
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October 25, 2026
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934
(Amendment No.__)
| Filed by the Registrant ☒ | |
| Filed by a Party other than the Registrant ☐ |
Check the appropriate box:
| ☐ | Preliminary Proxy Statement |
| ☐ | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| ☐ | Definitive Proxy Statement |
| ☒ | Definitive Additional Materials |
| ☐ | Soliciting Material under §240.14a-12 |
ADVENT TECHNOLOGIES HOLDINGS, INC.
(Name of Registrant as Specified in Its Charter)
N/A
(Name of Person(s) Filing Proxy Statement if other than Registrant)
Payment of Filing Fee (Check all boxes that apply):
| ☒ | No fee required | |
| ☐ | Fee paid previously with preliminary materials | |
| ☐ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a–6(i)(1) and 0–11 | |
