Company: MTZ
Filing Date: 2025-06-26
Form Type: 11-K
Source: 0000015615-25-000062
Chunk: 3

Company: MASTEC INC
Filing Date: 2025-06-26
Form: 11-K
Chunk 3
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             |             |
| Benefits paid to participants                                  |     |   |             |  88,185,985 |
| Administrative expenses                                        |     |   |             |   1,116,921 |
| Total deductions                                               |     |   |             |  89,302,906 |
| Net increase in net assets available for benefits              |     |   |             | 144,125,559 |
| Net assets available for benefits at beginning of year         |     |   |             | 591,619,444 |
| Net assets available for benefits at end of year               |     | $ | 735,745,003 |             |

<div align='center'>See accompanying notes to the financial statements

5</div>

NOTE A — DESCRIPTION OF PLAN

Description of the Plan

The following description of The MasTec, Inc. 401(k) Retirement Plan (the “Plan”), as amended, provides only general information.

Participants should refer to the Plan Document for a more complete description of the Plan’s provisions.

General

The Plan is a defined contribution plan covering all eligible employees of MasTec, Inc. and its subsidiaries that elect to participate in the Plan (collectively, the “Company”) who have completed at least one (1) full calendar month of employment. Employees enter the Plan on the first day of the month coinciding with or the next month following the date on which they meet the eligibility requirements. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 (“ERISA”), as amended. The Plan’s trustee, custodian and recordkeeper is Bank of America Merrill Lynch (“Merrill Lynch”). The Investment Committee is responsible for oversight of the Plan and determines the appropriateness of the Plan’s investment offerings and monitors investment performance.

Contributions

The Plan has a Safe Harbor match, which provides for a match of 100 percent of the first 3 percent and 50 percent of the next 2 percent of the contribution made to the plan up to a maximum 4 percent employer match. The match is credited on a quarterly basis, in the months of April, July, October of the current year, and January of the following year. The Company’s matching contribution is funded 50 percent in the form of the Company’s common stock, and 50 percent in cash, which is invested in accordance with each participant’s investment directive. The Company’s Safe Harbor matching contributions are vested immediately. Participants can change their investment options with respect to