Fast-casual burger chain Shake Shack is appointing Michelle Hook as the company's chief financial officer, effective May 11, 2026. Hook joins Shake Shack's executive leadership team and will be responsible for leading financial operations across the company, including accounting and treasury, financial planning and analysis, tax, investor relations and external reporting.

Hook has more than two decades of financial and operational leadership experience in the restaurant industry.

Rob Lynch, chief executive officer of Shake Shack, said, “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 joins Shake Shack from Portillo’s, where she served as chief financial officer beginning in December 2020. In that role, she led finance, supply chain and information technology, helped take the company public in 2021, strengthened its financial infrastructure, built processes to support significant growth, and fostered transparent communication with the investment community. Previously, Ms. Hook spent more than 17 years at Domino’s Pizza, Inc., where she most recently served as Vice President of Finance for global FP&A and investor relations, and held various accounting and finance leadership positions. Earlier in her career, she worked at Arthur Andersen and held finance roles at Holcim. Ms. Hook holds a Master of Business Administration from the University of Michigan and a Bachelor of Arts in accounting from Michigan State University. She is a certified public accountant.

“I’ve long admired Shake Shack and the team’s disciplined approach to building a beloved brand,” said Hook. “The team’s ability to grow thoughtfully while keeping hospitality at the core of the business is a powerful driver of sustainable value and I am honored to contribute to its next chapter of growth.”

Source: Shake Shack Inc.