MTZ: Financial results · Company disclosure

ITEM 2.02 Results of Operations and Financial Condition. The information contained in Item 7.01 of this Current Report on Form 8-K is incorporated by reference in this Item 2.02. ITEM 7.01 Regulation FD Disclosure. On October 29, 2026, the Company announced its financial results for the nine months and quarter ended September 30, 2026. In addition, the Company issued guidance for the quarter and year ending December 31, 2026, in each case as set forth in the earnings press release. A copy of the Company’s earnings press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and incorporated by reference in this Item 7.01. The information contained in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” with the Securities and Exchange Commission nor incorporated by reference in any registration statement filed by the Company under the Securities Act of 1933, as amended. ITEM 9.01 Financial Statements and Exhibits. (d) Exhibits Exhibit Number Description 99.1 Press Release , October 29, 2026 104 The cover page of MasTec, Inc.’s Current Report on Form 8-K, formatted in Inline XBRL (included with the Exhibit 101 attachments). SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. MASTEC, INC. Date: October 29, 2026 By: /s/ Alberto de Cardenas Name: Alberto de Cardenas Title: Executive Vice President, General Counsel and Secretary