New York City — Shake Shack Inc. has appointed Michelle Hook as its chief financial officer, effective May 11, 2026. She brings more than two decades of financial and operational leadership experience in the restaurant industry, with a proven track record of scaling growth companies and building high-performing teams.
“We are thrilled to welcome Michelle to the Shake Shack team,” says Rob Lynch, chief executive officer of Shake Shack. “She brings deep restaurant industry expertise and significant public company experience to the role.”
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, she 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.
Since the original Shack opened in 2004 in New York City’s Madison Square Park, Shake Shack has expanded to over 685 locations system-wide, including over 440 in 35 U.S. states and the District of Columbia, and over 245 international locations across London, Hong Kong, Shanghai, Singapore, Mexico City, Istanbul, Dubai, Tokyo, Seoul and more.
SOURCE: Shake Shack