Jeff Flug has been a director of Shake Shack since 2010.
Flug has over 25 years of leadership and management experience in both the financial industry and the nonprofit world.
Most recently, he served as chief financial officer and chief operating officer for USHG, from 2009 until his retirement in 2015. Prior to USHG, he was the CEO and executive director for the nonprofit, Millennium Promise, which focuses on the issues of extreme poverty and malaria in Africa.
Before Millenium Promise, Flug held the role of head of North America fixed income institutional sales at JP Morgan Chase & Co., as well as managing director and head of fixed income financial futures and options sales at Goldman, Sachs & Co. He joined Goldman Sachs in 1988 after leaving his first post-university job as an accountant at PricewaterhouseCoopers. Flug earned his C.P.A. certification while at PWC in 1986.
Flug has significant experience serving on boards of directors for companies and organizations, including Pennant Park Investment Corporation, Sears Hometown & Outlet Stores, the Mountain School of Milton Academy, and the popular fast food restaurant, Shake Shack, among others.
Flug earned his B.B.A. in accounting from the University of Massachusetts, Amherst. He also holds an M.B.A. in finance from Columbia Business School.
What is Jeffrey Flug's net worth?
The estimated net worth of Jeffrey Flug is at least $300.69 thousand as of May 15th, 2026. Mr. Flug owns 5,470 shares of Shake Shack stock worth more than $300,686 as of June 25th. This net worth approximation does not reflect any other assets that Mr. Flug may own. Learn More about Jeffrey Flug's net worth.
How do I contact Jeffrey Flug?
Has Jeffrey Flug been buying or selling shares of Shake Shack?
In the last ninety days, Jeffrey Flug has bought $61,300.00 of Shake Shack stock. Most recently, on Friday, May 15th, Jeffrey Flug bought 1,000 shares of Shake Shack stock. The stock was acquired at an average cost of $61.30 per share, with a total value of $61,300.00. Following the completion of the transaction, the director now directly owns 5,470 shares of the company's stock, valued at $335,311. Learn More on Jeffrey Flug's trading history.
Who are Shake Shack's active insiders?
Are insiders buying or selling shares of Shake Shack?
During the last twelve months, Shake Shack insiders bought shares 5 times. They purchased a total of 50,616 shares worth more than $3,109,781.80. During the last twelve months, insiders at the sold shares 9 times. They sold a total of 54,451 shares worth more than $7,527,123.72. The most recent insider tranaction occured on May, 15th when Director Josh Silverman bought 8,290 shares worth more than $500,550.20. Insiders at Shake Shack own 8.3% of the company.
Learn More about insider trades at Shake Shack. Information on this page was last updated on 5/15/2026.
