MASTEC INC

For the period ended Dec 31, 2024. Filed Feb 28, 2025.

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FY2024 · Filed Feb 28, 2025

MTZ$180.84-4.3%Stored close · as of Nov 10, 2026

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Item 9B. Other Information

During the three month period ended December 31, 2024, except as provided below, no director or officer (as defined in Rule 16a-1(f) of the Exchange Act)adopted, modified orterminated a contract, instruction or written plan for the purchase or sale of our securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or a “non-Rule 10b5-1 trading arrangement,” as defined in Item 408(c) of Regulation S-K:

Name	Title	Type of Plan	Action	Date of Action	Duration of Plan	Aggregate Number of Securities Covered Under the Plan
C. Robert Campbell	Director	Rule 10b5-1	Terminated	11/26/2024	(1)	(1)

(1)On November 26, 2024, C. Robert Campbell, a member of our Board, terminated a Rule 10b5-1 plan, which was previously adopted on September 30, 2024. The terminated trading plan provided for the potential sale of up to 15,000 shares of our common stock, and was scheduled to be effective from December 29, 2024 until September 30, 2026.

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