Exhibit 99.1

TERMINATION OF GROUP AGREEMENT

October 27, 2026

Each of the undersigned was a party to that certain Group Agreement, dated as of September 23, 2024 (the “Group Agreement”), with respect to Red Robin Gourmet Burgers, Inc. (the “Company”). Capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Group Agreement.

WHEREAS, pursuant to Section 9 of the Group Agreement, the Group Agreement terminated upon the second anniversary of the Effective Date;

WHEREAS, notwithstanding the passing of the second anniversary of the Effective Date, JCP and Jumana elected to remain as members of a “group” (as such term is defined in Section 13(d)(3) of the Exchange Act) and to continue to coordinate their activities with respect to the Company; and

WHEREAS, JCP and Jumana now desire to cease the coordination of their activities with respect to the Company and to no longer be members of a “group” with respect to the Company.

NOW, THEREFORE, JCP and Jumana hereby agree that they are no longer coordinating their activities or acting as a “group” with respect to the Company effective immediately.

[Signature pages follow]

IN WITNESS WHEREOF, the parties hereto have caused this Termination of Group Agreement to be executed as of the day and year first above written.