0000015615 2026-07-29 2026-07-29 0000015615 1 2026-07-29 2026-07-29 iso4217:USD pure shares S-3 424B7 EX-FILING FEES 333-285425 0000015615 MASTEC INC N/A N/A S-3 MASTEC INC false Equity Common Stock true 1219498 315.775 385086980.95 0.0001381 53180.51 385086980.95 53180.51 0.00 0.00 53180.51 (1) Calculated pursuant to Rules 456(b), 457(c) and 457(r) of the Securities Act of 1933, as amended, or the Securities Act, by multiplying the proposed maximum aggregate offering price of securities to be registered by 0.00013810. (2) Consists of 1,219,498 shares of common stock registered for resale by the selling shareholders named in this prospectus supplement. (3) Estimated solely for purposes of calculating the registration fee in accordance with Rules 457(c) and 457(r) of the Securities Act, and based upon the average of the high and low sales price of a share of the Registrant's common stock as reported by the New York Stock Exchange on July 28, 2026. 385086980.95 true