Company: MTZ
Filing Date: 2025-02-28
Form Type: S-3ASR
Source: 0001193125-25-042499
Chunk: 9

Company: MASTEC INC
Filing Date: 2025-02-28
Form: S-3ASR
Chunk 9
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 “—Material Provisions of our Articles of Incorporation and Bylaws.” Additionally, the vote or concurrence of our shareholders holding a majority in interest of our common stock is sufficient for certain other actions that require the vote or concurrence of shareholders. As of December 31, 2024, Jorge Mas, our Chairman, and José Mas, our Chief Executive Officer, together with certain family partnerships and trusts, beneficially own approximately 23% of our issued and outstanding shares of common stock. Consequently, they have the power to control our management and affairs and are in a position to substantially influence:

| • |     | the vote of most matters submitted to our shareholders, including any merger, consolidation or sale of all or 
 substantially all of our assets;                                                                              |

| • |     | the nomination of individuals to our Board of Directors; and |

| • |     | a change in our control. |

The Mas family’s ability to exercise significant control over our management and affairs may discourage, delay or prevent a takeover attempt that you might consider in your best interest and that might result in you receiving a premium for your common stock. The transfer agent and registrar for our common stock is American Stock Transfer & Trust Company. 7

General Description of Preferred Stock Our Amended and Restated Articles of Incorporation authorize our Board of Directors, without further shareholder approval, to:

| • |     | issue preferred stock in one or more series; |

| • |     | establish the number of shares to be included in each such series; and |

| • |     | fix the designations, powers, preferences and rights of the shares of each series and any qualifications, 
 limitations or restrictions on those shares.                                                              |

The Board of Directors may establish a class or series of preferred stock with preferences, powers and rights (including voting rights) senior to the rights of the holders of shares of our common stock. If we issue any of our preferred stock, the terms thereof may have the effect of delaying, deferring or preventing a change in control. Material Provisions of Our Articles of Incorporation and Bylaws Our Amended and Restated Articles of Incorporation and our Amended and Restated Bylaws contain material provisions that may make the acquisition of control of us more difficult. Business Combinations. Our Amended and Restated Articles of Incorporation contain material provisions which may make it more difficult for a person or entity that is the holder of more than 10% of our outstanding voting stock to force us to approve a “business combination.”