Shake Shack names Michelle Hook CFO

Shake Shack has its hooks on a new CFO.

The fast-casual burger chain on Thursday named Michelle Hook its new chief financial officer.

The former Portillo’s finance chief will take over effective on May 11. Hook will succeed Katherine Fogertey, who stepped down as CFO in November.

Hook will lead financial operations at Shake Shack. She has more than two decades of financial and operational leadership experience in the restaurant industry and the company said she has a “proven track record of scaling growth companies and building high-performing teams.”

“She brings deep restaurant industry expertise and significant public company experience to the role,” Shake Shack CEO Rob Lynch said in a statement. “I’m confident Michelle will be a valuable addition to our leadership team as we continue to advance our culture of Enlightened Hospitality and further strengthen our best-in-class finance organization on our path to 1,500 company-operated shacks.”

Hook had been the Portillo’s CFO since 2020 and helped take the Italian beef and hot dog chain public in 2021. Portillo’s announced her departure earlier this week.

Hook had previously spent more than 17 years with Domino’s, most recently as VP of finance.

Hook will join one of the restaurant industry’s premier fast-casual chains. System sales rose 15.9% worldwide, to $2.2 billion, in 2025. In the U.S., Shake Shack is the second-largest fast-casual burger chain behind Five Guys.

Under Lynch, the company has set higher expectations for long-term growth. Shake Shack’s new goal of 1,500 company locations would quadruple the number of company locations, currently at 373.