Shake Shack Now Public

Shake Shack Inc. (“Shake Shack” or the “Company”) today announced the pricing of its initial public offering of 5,000,000 shares of its Class A common stock at a public offering price of $21.00 per share.

The shares are expected to begin trading on the New York Stock Exchange on January 30, 2015 under the ticker symbol “SHAK.” In addition, Shake Shack has granted the underwriters a 30-day option to purchase from Shake Shack up to an additional 750,000 shares of its Class A common stock at the initial public offering price, less the underwriting discount.

The closing of the offering is expected to occur on February 4, 2015, subject to the satisfaction of customary closing conditions.

J.P. Morgan Securities LLC and Morgan Stanley & Co. LLC are acting as joint lead book-running managers in the proposed offering. Barclays Capital Inc., Goldman, Sachs & Co., and Jefferies LLC are also acting as book-running managers in the proposed offering. William Blair & Company, L.L.C. and Stifel are acting as co-managers in the proposed offering.

A registration statement relating to the securities was declared effective by the Securities and Exchange Commission. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

The offering will be made only by means of a prospectus. A copy of the final prospectus related to the offering may be obtained, when available, from: J.P. Morgan Securities LLC, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, or by calling toll-free at (866) 803-9204; or Morgan Stanley & Co. LLC, 180 Varick Street, 2nd Floor, New York, NY 10014, Attention: Prospectus Department.

January 29, 2015