Company: MTZ
Filing Date: 2025-02-28
Form Type: S-3ASR
Source: 0001193125-25-042499
Chunk: 39

Company: MASTEC INC
Filing Date: 2025-02-28
Form: S-3ASR
Chunk 39
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 described in the applicable prospectus supplement. These terms will include:

| • |     | the conversion or exchange price, or the manner of calculating the price; |

| • |     | the exchange or conversion period; |

| • |     | whether the conversion or exchange is mandatory, or voluntary at the option of the holder or at our option; |

| • |     | any restrictions on conversion or exchange in the event of redemption of the debt securities and any restrictions 
 on conversion or exchange; and                                                                                    |

| • |     | the means of calculating the number of shares of our common stock, preferred stock or other securities or 
 property of us to be received by the holders of debt securities.                                          |

The conversion or exchange price of any debt securities of any series that are convertible into our common stock or preferred stock shall be adjusted for any stock dividends, stock splits, reclassification, combinations or similar transactions, as set forth in the applicable prospectus supplement (Article Sixteen). Governing Law The indentures are governed by the laws of the State of New York. Redemption of Debt Securities The debt securities may be subject to optional or mandatory redemption on terms and conditions described in the applicable prospectus supplement. Subject to such terms, we may opt at any time to partially or entirely redeem the debt securities. From and after notice has been given as provided in the applicable indenture, if funds for the redemption of any debt securities called for redemption shall have been made available on the redemption date, the debt securities will cease to bear interest on the date fixed for the redemption specified in the notice, and the only right of the holders of the debt securities will be to receive payment of the redemption price. 28

DESCRIPTION OF WARRANTS The following summary describes generally the terms of warrants that we may offer from time to time in one or more series. The specific terms of a series of warrants will be described in the applicable prospectus supplement relating to that series of warrants along with any general provisions applicable to that series of warrants. The following description of the warrants, and any description of the warrants in a prospectus supplement, may not be complete and is subject to, and qualified in its entirety by reference to, the underlying warrant agreement, which we will file with the SEC at or prior to the time of the sale of the warrants. You should refer to, and read this summary together with, the warrant agreement and the applicable prospectus supplement to review the terms of a particular series of our common or preferred stock that may be important to you. You