Company: JACK
Filing Date: 2025-11-07
Form Type: DEFA14A
Source: 0000807882-25-000063
Chunk: 6

Company: JACK IN THE BOX INC
Filing Date: 2025-11-07
Form: DEFA14A
Chunk 6
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 of common stock. Supplemental information regarding the holdings of the Company’s securities can be found in the SEC filings on Forms 3 and 4, and such filings are available on the Company’s website at https://investors.jackinthebox.com/financials/sec-filings/ or through the SEC’s website at www.sec.gov. Updated information regarding the identity of potential participants, and their direct or indirect interests, by security holdings or otherwise, will be set forth in the section titled “Security Ownership of Certain Beneficial Owners and Management” of the Proxy Statement and other materials to be filed with the SEC in connection with the Annual Meeting.

#### Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.

| Exhibit No. 
 10.1        
 99.1        |     | Description                                                                                                                                                           
 Nomination and Cooperation Agreement, dated as of November 3, 2025, by and among the Company, GreenWood Investors, LLC and the entities listed on Schedule A thereto. 
 Press Release. dated November 3, 2025, issued by the Company.                                                                                                         |
|:------------|:----|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 104         |     | Cover Page Interactive Date File (embedded with the Inline XBRL document)                                                                                             |

### SIGNATURES
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 thereunto duly authorized.

| November 7, 2025 |     | JACK IN THE BOX INC.                      
 /s/   Sarah Super                         |
|:-----------------|:----|:------------------------------------------|
|                  |     | Sarah Super                               |
|                  |     | EVP, Chief Legal & Administrative Officer |