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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13D/A 0001193805-25-001000 0001726173 XXXXXXXX LIVE 1 Common Stock 10/31/2025 true 0000807882 466367109 JACK IN THE BOX INC 9357 SPECTRUM CENTER BLVD SAN DIEGO CA 92123-1516 Sardar Biglari 210-344-3400 Biglari Holdings Inc. 19100 Ridgewood Pkwy, Suite 1200 San Antonio TX 78259 Michael Neidell, Esq. 212-451-2300 Olshan Frome Wolosky LLP 1325 Avenue of the Americas New York NY 10019 0001726173 N Biglari Holdings Inc. OO N IN 200617.00 0.00 200617.00 0.00 200617.00 N 1.1 CO 0001334426 N LION FUND, L.P. WC N DE 542700.00 0.00 542700.00 0.00 542700.00 N 2.9 PN 0001580602 N LION FUND II, L.P. WC N DE 1140952.00 0.00 1140952.00 0.00 1140952.00 N 6.0 PN Y Southern Pioneer Property & Casualty Insurance Company WC N AR 106317.00 0.00 106317.00 0.00 106317.00 N 0.6 IC Y First Guard Insurance Company WC N AZ 21900.00 0.00 21900.00 0.00 21900.00 N 0.1 IC 0002035328 N Biglari Reinsurance Ltd. WC OO N D0 148217.00 0.00 148217.00 0.00 148217.00 N 0.8 CO 0002034968 N Biglari Insurance Group Inc. OO N DE 148217.00 0.00 148217.00 0.00 148217.00 N 0.8 CO Y Western Sizzlin Corporation WC N DE 52400.00 0.00 52400.00 0.00 52400.00 N 0.3 CO 0001334429 N BIGLARI CAPITAL CORP. AF N TX 1683652.00 0.00 1683652.00 0.00 1683652.00 N 8.9 OO 0001334430 N BIGLARI, SARDAR AF N X1 1884269.00 0.00 1884269.00 0.00 1884269.00 N 9.98 IN Common Stock JACK IN THE BOX INC 9357 SPECTRUM CENTER BLVD SAN DIEGO CA 92123-1516 Item 4 is hereby amended to add the following: On October 31, 2025, the Reporting Persons delivered a letter to the Issuer nominating Sardar Biglari and Douglas Thompson for election to the Board at the 2026 annual meeting of shareholders of the Issuer (the "Annual Meeting"). Item 6 is hereby amended to add the following: On October 31, 2025, the Reporting Persons, Steak 'n Shake Inc. and Mr. Thompson (collectively, the "Participants") entered into a Joint Filing and Solicitation Agreement (the "Joint Filing and Solicitation Agreement") in which, among other things, (i) the Participants agreed to jointly file a statement on Schedule 13D, and any amendments thereto, with respect to securities of the Issuer to the extent required by applicable law, (ii) the Participants agreed to solicit proxies for the election of certain persons nominated for election to the Board at the Annual Meeting (including those nominated by or on behalf of the Reporting Persons), (iii) the Participants agreed to take all other action necessary to achieve the foregoing, and (iv) the Reporting Persons agreed to bear all expenses incurred in connection with the Participants' activities, including approved expenses incurred by any of the parties in connection with the solicitation, subject to certain limitations. The Joint Filing and Solicitation Agreement is attached hereto as Exhibit 99.1 and is incorporated herein by reference. Mr. Thompson has granted Mr. Biglari a power of attorney (the "POA") to execute certain SEC filings and other documents in connection with the solicitation of proxies from the Issuer's shareholders in connection with the Annual Meeting. The POA is attached hereto as Exhibit 99.2 and are incorporated herein by reference. The Lion Fund has signed a letter agreement (the "Indemnification Agreement") with Mr. Thompson, pursuant to which it and its affiliates have agreed to indemnify Mr. Thompson against certain claims arising from the solicitation of proxies from the Issuer's shareholders in connection with the Annual Meeting and any related transactions. For the avoidance of doubt, such indemnification does not apply to any claims made against Mr. Thompson in his capacity as a director of the Issuer, if so elected. The Indemnification Agreement is attached hereto as Exhibit 99.3 and is incorporated herein by reference. Item 7 is hereby amended to add the following exhibits: 99.1 - Joint Filing and Solicitation Agreement, dated October 31, 2025. 99.2 - Power of Attorney, dated October 31, 2025. 99.3 - Indemnification Agreement, dated October 31, 2025. Biglari Holdings Inc. /s/ Sardar Biglari Sardar Biglari, Chairman and Chief Executive Officer 11/03/2025 LION FUND, L.P. /s/ Sardar Biglari Sardar Biglari, Chairman and Chief Executive Officer of Biglari Capital Corp., its general partner 11/03/2025 LION FUND II, L.P. /s/ Sardar Biglari Sardar Biglari, Chairman and Chief Executive Officer of Biglari Capital Corp., its general partner 11/03/2025 Southern Pioneer Property & Casualty Insurance Company /s/ Sardar Biglari Sardar Biglari, Authorized Signatory 11/03/2025 First Guard Insurance Company /s/ Sardar Biglari Sardar Biglari, Authorized Signatory 11/03/2025 Biglari Reinsurance Ltd. /s/ Sardar Biglari Sardar Biglari, Chairman and Chief Executive Officer 11/03/2025 Biglari Insurance Group Inc. /s/ Sardar Biglari Sardar Biglari, Chairman of the Board 11/03/2025 Western Sizzlin Corporation /s/ Sardar Biglari Sardar Biglari, President 11/03/2025 BIGLARI CAPITAL CORP. /s/ Sardar Biglari Sardar Biglari, Chairman and Chief Executive Officer 11/03/2025 BIGLARI, SARDAR /s/ Sardar Biglari Sardar Biglari 11/03/2025