Company: DMRC
Filing Date: 2025-03-25
Form Type: DEFA14A
Source: 0001437749-25-009138
Chunk: 0

Company: Digimarc CORP
Filing Date: 2025-03-25
Form: DEFA14A
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION
<div align='center'>Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )</div>

| 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 Pursuant to §240.14a-12 |

### DIGIMARC CORPORATION
<div align='center'>(Name of registrant as specified in its charter)

(Name of person(s) filing proxy statement, if other than the registrant)</div>

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. |