SHAK: Financial results · Company disclosure

Item 2.02 Results of Operations and Financial Condition. On November 5, 2026, Shake Shack Inc. (the “Company”) issued a press release and shareholder letter announcing its financial results for the fiscal third quarter ended September 30, 2026. The full text of the press release and shareholder letter are furnished as Exhibit 99.1 and Exhibit 99.2, respectively, to this Current Report on Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing. Item 7.01 Regulation FD Disclosure. On November 5, 2026, in addition to issuing a press release, the Company issued a shareholder letter for its fiscal third quarter ended September 30, 2026 on its website at investor.shakeshack.com. The shareholder letter is furnished as Exhibit 99.2 to this Current Report on Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits. (d) Exhibits. Exhibit Number Exhibit Description 99.1 Press release dated November 5, 2026 announcing financial results for the fiscal third quarter ended September 30, 2026. (furnished only) 99.2 Shareholder letter dated November 5, 2026. (furnished only) 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused