Lance Tucker out as Jack in the Box CEO

Tucker held the CEO post for just over 13 months, coinciding with continued sales declines and a tough fight with activist investors. Mark King will succeed him on an interim basis.

• Jack in the Box named Mark King, chair of its board since March, as interim CEO, the chain announced Wednesday . He replaces Lance Tucker, who became CEO in March 2025 .

• King, who replaced David Goebel as board chair after a contentious challenge by activist investor Sardar Biglari earlier this year , has extensive QSR leadership experience, including as CEO of Taco Bell, according to his executive bio .

Sales struggles continue

• Jack in the Box has struggled with serious same-store sales declines . It most recently posted a 3.8% drop in the key metric, according to its second quarter fiscal 2026 earnings report . That underperformance has drawn activist investor challenges and prompted the brand to undertake two concurrent turnaround plans.

King said Jack in the Box’s second-quarter performance “did not meet expectations,” but that the chain is planning to speed up its turnaround efforts. The chain has already closed dozens of underperforming locations, with a net decline of 55 stores from the year-ago quarter, according to its earnings release .

As interim CEO, King will work to “increase the pace of our progress and capture the growth opportunities ahead for the brand” until a permanent chief executive is named, board member Alan Smolinisky said in the announcement.

King said he would “work with urgency to improve operating results and enhance shareholder value,” and that the chain is “committed to executing on our ‘JACK on Track’ plan with discipline and at speed.”

Turnaround strategy

The burger chain’s JACK on Track strategy aims to stabilize its balance sheet . The sale of Del Taco to franchisee Yadav Enterprises for $115 million last year was part of that push to pay down debt. Jack in the Box is also selling off some of its real estate.

In fiscal Q1, the brand’s real estate sales generated $10.9 million in proceeds. Jack in the Box expects “to sell real estate with proceeds of $50 million to $60 million by the end of fiscal year 2026,” said Dawn Hooper, Jack in the Box’s chief financial officer, on the brand’s Q1 earnings call .

Jack in the Box’s efforts to improve its balance sheet are accompanied by investments in the physical appearance and operations of its restaurants as part of a separate turnaround initiative called Jack’s Way . On the company’s Q1 earnings call, executives said Jack in the Box is spending between $10,000 and $20,000 per restaurant on cosmetic refreshes to paint and update parking lots and improve landscaping. That program was meant to be followed by more comprehensive overhauls starting in late 2026.

As part of Jack’s Way, the brand simplified its marketing calendar “to have a more balanced and consistent focus between value and innovation,” Tucker told analysts in February. The chain also reduced its number of concurrent media campaigns from three to two in hopes of strengthening in-store execution of its limited-time offers.