Company: JACK
Filing Date: 2025-11-14
Form Type: DFAN14A
Source: 0000921895-25-003125
Chunk: 0

Company: JACK IN THE BOX INC
Filing Date: 2025-11-14
Form: DFAN14A
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

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 Under § 240.14a-12 |

| JACK IN THE BOX INC.                                                      |
| (Name of Registrant as Specified In Its Charter)                          |
| BIGLARI CAPITAL CORP.                                                     
 THE LION FUND, L.P.                                                       
 THE LION FUND II, L.P.                                                    
 BIGLARI HOLDINGS INC.                                                     
 FIRST GUARD INSURANCE COMPANY                                             
 SOUTHERN PIONEER PROPERTY AND CASUALTY INSURANCE COMPANY                  
 BIGLARI REINSURANCE LTD.                                                  
 BIGLARI INSURANCE GROUP INC.                                              
 WESTERN SIZZLIN CORPORATION                                               
 STEAK N SHAKE INC.                                                        
 SARDAR BIGLARI                                                            
 DOUGLAS THOMPSON                                                          |
| (Name of Persons(s) Filing Proxy Statement, if other than the 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 |

Biglari Capital Corp.,
together with the other participants named herein (collectively, “Biglari”), intends to file a preliminary proxy statement
and accompanying GOLD universal proxy card with the Securities and Exchange Commission to be used to solicit votes for the election
of Biglari’s highly qualified director nominees at the 2026 annual meeting of stockholders (the “Annual Meeting”) of
Jack in the Box Inc. (the “Company”),