MasTec director gets 177-share stock compensation

For MASTEC INC (MTZ), director Ava L. Parker reported equity-based compensation and related tax withholding transactions in Common Stock on August 14, 2026.

Rhea-AI Filing Summary

For MASTEC INC (MTZ), director Ava L. Parker reported equity-based compensation and related tax withholding transactions in Common Stock on August 14, 2026. She received a grant of 177 shares as part of her quarterly compensation, with the number of shares based on the closing share price that day. Under the Issuer's Deferred Fee Plan for Directors, she elected to defer 88 of these shares to a future date. Separately, 20 shares were withheld by the company at a price of $297.59 per share to pay taxes due upon the vesting of restricted stock.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Parker Ava L

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	177	$0.00	$0.00
Tax Withholding	Common Stock F2	20	$297.59	$6K

Holdings After Transaction: Common Stock — 5,549 shares (Direct)

Footnotes (2)

1. F1. 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 August 14, 2026. Pursuant to the Issuer's Deferred Fee Plan for Directors, the reporting person elected to defer the receipt of 88 of such shares to a future date in accordance with the terms of such plan.
2. F2. Shares disposed of represent shares withheld by the Issuer to pay taxes due upon vesting of restricted stock.

Key Figures

Compensation shares granted: 177 shares Shares deferred under director plan: 88 shares Shares withheld for taxes: 20 shares +1 more

4 metrics

Compensation shares granted 177 shares Portion of quarterly director compensation received as Common Stock on August 14, 2026

Shares deferred under director plan 88 shares Part of the 177 compensation shares deferred to a future date under the Deferred Fee Plan for Directors

Shares withheld for taxes 20 shares Shares of Common Stock withheld to pay taxes due upon vesting of restricted stock

Tax withholding price $297.59 per share Per-share value used for the 20 shares withheld to pay tax liability

Key Terms

Deferred Fee Plan for Directors, restricted stock, withheld by the Issuer

3 terms

Deferred Fee Plan for Directors financial

"Pursuant to the Issuer's Deferred Fee Plan for Directors, the reporting person elected"

restricted stock financial

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

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

withheld by the Issuer financial

"Shares disposed of represent shares withheld by the Issuer to pay taxes due"

FAQ

What insider transactions did Ava L. Parker report for MASTEC INC (MTZ) on August 14, 2026?

On August 14, 2026, Ava L. Parker reported a grant of 177 Common Stock shares as quarterly compensation and a withholding of 20 shares used to pay taxes upon restricted stock vesting.

How many MTZ shares did Ava L. Parker receive as compensation in this Form 4 filing?

Ava L. Parker received 177 shares of MTZ Common Stock as part of her quarterly compensation. The share amount was calculated using the closing price on August 14, 2026 in accordance with the company’s compensation framework.

How many 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 88 of the 177 granted shares. These deferred shares will be received at a future date according to the specific terms of that plan.

Why were 20 MTZ shares withheld from Ava L. Parker in this Form 4?

The 20 withheld shares represent stock retained by MasTec to pay taxes due upon the vesting of restricted stock. The shares were valued at $297.59 per share for this tax-withholding transaction.

Does this MTZ Form 4 indicate any open-market buying or selling by Ava L. Parker?

No open-market trades are reported. The filing shows a compensation-related stock grant of 177 shares and a withholding of 20 shares to cover tax liabilities from restricted stock vesting, both classified as non-derivative transactions.

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Available on EDGAR 08/18/2026 - 04:39 PM Accepted by SEC EDGAR 08/18/2026 - 04:38 PM Learn about SEC filing dates

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
Estimated average burden
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 FLORIDA 33449

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/14/2026

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

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

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

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	08/14/2026		A		177(1)	A	$0	5,569	D
Common Stock	08/14/2026		F		20(2)	D	$297.59	5,549	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 August 14, 2026. Pursuant to the Issuer's Deferred Fee Plan for Directors, the reporting person elected to defer the receipt of 88 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	08/18/2026
	** 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.
* Form 4: SEC 1474 (03-26)