Company: DMRC
Filing Date: 2025-04-25
Form Type: DEFA14A
Source: 0001193125-25-094240
Chunk: 2

Company: Digimarc CORP
Filing Date: 2025-04-25
Form: DEFA14A
Chunk 2
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”). On April 22, 2025, the chief executive officer and co-chiefinvestment officer of Kimelman & Baird LLC (“K&B”), a second Digimarc shareholder, issued a letter to Ms. Kool confirming K&B’s support of a recent decision made by the Board, Ms. Kool, as chair of the Board, and Digimarc’s chief executive officer, Mr. McCormack, to adjust the Company’s direction (the “K&B Response Letter”). On April 23, 2025, a founding partner of Silverberg Bernstein Capital Management, a third Digimarc shareholder, issued a letter to Ms. Kool expressing support for Mr. McCormack’s performance and continued service as chief executive officer (the “SBCM Response Letter”). The foregoing descriptions of the LIM Response Letter, K&B Response Letter and SBCM Response Letter do not purport to be complete and are qualified in their entirety by the full texts of each letter. Copies of the LIM Response Letter, K&B Response Letter and SBCM Response Letter are attached as Exhibits 99.1, 99.2 and 99.3, respectively, to this Current Report on Form 8-K.

| Item 9.01. | Financial Statements and Exhibits |

(d) Exhibits

| Exhibit 
 No.     |     | Description                                                                                       |
| 99.1    |     | Letter to the Board of Directors, issued by Lagoda Investment Management.                         |
| 99.2    |     | Letter to the Chair of the Board of Directors, issued by Kimelman & Baird LLC.                    |
| 99.3    |     | Letter to the Chair of the Board of Directors, issued by Silverberg Bernstein Capital Management. |
| 104     |     | Cover Page Interactive Data File (embedded within the Inline XBRL document)                       |

SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: April 24, 2025

| By: |     | /s/ George Karamanos                          |
|     |     | George Karamanos                              |
|     |     | Executive Vice President, Chief Legal Officer 
 and Secretary                                 |

Exhibit 99.1

Fatima Dickey

3 Columbus Circle, 15 Floor

New York, NY 10019

Dear Board of Directors of Digim