Exhibit 99.1 Contact: Rachel Webb Vice President, Investor Relations rachel.webb@jackinthebox.com 858.522.4556 Jack in the Box Inc. Reports First Quarter 2026 Earnings Jack in the Box same-store sales of (6.7%) Diluted EPS from continuing operations of $0.75 and Operating EPS of $1.00 SAN DIEGO, Calif. February 18, 2026 – Jack in the Box Inc. (NASDAQ: JACK) announced financial results for the first quarter ended January 18, 2026. The Company completed the sale of Del Taco Holdings Inc. ("Del Taco") on Decem ...