[Form 4] MASTEC INC Insider Trading Activity

Rhea-AI Filing Summary

MasTec Inc. director Ava L. Parker reported routine equity compensation activity in a Form 4 dated 11/14/2025. She acquired 274 shares of common stock at a stated price of $0 as part of her quarterly director compensation, calculated using the closing share price on November 14, 2025. Under MasTec’s Deferred Fee Plan for Directors, she elected to defer receipt of 137 of those shares to a future date per the plan’s terms.

To cover taxes due upon vesting of restricted stock, 31 shares of common stock were withheld by MasTec at a price of $192.22 per share. After these transactions, Parker beneficially owns 5,112 shares of MasTec common stock directly. The filing is characterized as being made by one reporting person and notes her role as a company director.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Parker Ava L

(Last) (First) (Middle)

10589 VERSAILLES BLVD

(Street)

WELLINGTON FL 33449

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MASTEC INC [ MTZ ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/14/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/14/2025		A		274(1)	A	$0	5,143	D
Common Stock	11/14/2025		F		31(2)	D	$192.22	5,112	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. These shares of Common Stock represent the portion of the reporting person's quarterly compensation that the reporting person was required to or elected to receive in the form of shares of Common Stock. The number of shares was calculated based on the closing price of a share of Common Stock on November 14, 2025. Pursuant to the Issuer's Deferred Fee Plan for Directors, the reporting person elected to defer the receipt of 137 of such shares to a future date in accordance with the terms of such plan.

2. Shares disposed of represent shares withheld by the Issuer to pay taxes due upon vesting of restricted stock.

Remarks:

	\s\ Alberto de Cardenas For: Ava L. Parker	11/18/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did MasTec (MTZ) report for director Ava L. Parker?

MasTec (MTZ) disclosed that Ava L. Parker, a director, received 274 shares of common stock as part of her quarterly director compensation on 11/14/2025, with a portion deferred under the company’s director fee plan.

How many MasTec (MTZ) shares did Ava L. Parker defer under the Deferred Fee Plan for Directors?

Under MasTec’s Deferred Fee Plan for Directors, Ava L. Parker elected to defer the receipt of 137 shares of common stock from her 274-share quarterly compensation grant to a future date, in accordance with the plan’s terms.

Why were 31 MasTec (MTZ) shares withheld from Ava L. Parker?

The Form 4 states that 31 shares of MasTec common stock were disposed of by being withheld by the issuer to pay taxes due upon the vesting of restricted stock, at a price of $192.22 per share.

What is the resulting share ownership of Ava L. Parker in MasTec (MTZ)?

Following the reported transactions on 11/14/2025, Ava L. Parker beneficially owns 5,112 shares of MasTec common stock directly, as shown in the Form 4.

What role does Ava L. Parker hold at MasTec (MTZ) according to the Form 4?

The Form 4 identifies Ava L. Parker as a director of MasTec Inc. and notes that the filing is a Form 4 submitted by one reporting person.

At what price was MasTec (MTZ) stock valued for Ava L. Parker’s share grant?

The explanation notes that the 274-share common stock grant for Ava L. Parker was calculated based on the closing price of a share of common stock on November 14, 2025, though only the tax-withholding price of $192.22 is explicitly listed.