MTZ Form 4: Director Robert Campbell Disposes of 3,000 Shares

Rhea-AI Filing Summary

Robert C. Campbell, a director of MasTec, Inc. (MTZ), sold 3,000 shares of the company's common stock on 09/11/2025 at a price of $190.39 per share. After the transactions, the reporting person beneficially owned 35,277 shares directly. The filing states the 3,000 shares were sold in 47 separate transactions, each at $190.39, and the filer will provide details of the per-transaction share counts upon request.

Positive

• None.

Negative

• Director sale: Reporting person disposed of 3,000 shares, reducing direct beneficial ownership to 35,277 shares.
• Fragmented execution: Shares were sold in 47 separate transactions, which may complicate transparency of per-trade sizes without the filer providing additional detail.

Insights

Securities Analyst

TL;DR: A director executed a small-block sale of 3,000 MTZ shares at $190.39, leaving 35,277 shares beneficially owned.

The Form 4 documents an open-market disposition of 3,000 common shares by a company director on 09/11/2025 at $190.39 per share. The sale was executed across 47 transactions, indicating either a desire to minimize market impact or execution via multiple trades; the filer offered to disclose the number of shares per trade on request. The remaining direct holdings of 35,277 shares are disclosed, and no derivatives or additional instruments are reported. Based solely on the filing, this is a routine insider sale disclosure rather than evidence of company-specific financial changes.

Corporate Governance Expert

TL;DR: Director sale disclosed; structure of 47 transactions is notable but the filing shows no change in indirect holdings or derivative positions.

The report shows the director filed a timely Section 16 disclosure for a sale executed on 09/11/2025. The fragmented execution across 47 trades is explicitly noted; the reporter commits to providing per-trade counts on request, which maintains transparency. There are no amendments, no 10b5-1 plan checkbox indicated, and no derivative activity reported. From a governance perspective, this is a standard disclosure of an outright sale without additional red flags in the filing itself.

Insider Trade Summary

Net Seller: 3,000 shares ($571,170)

Net Sell 1 txn

Insider Campbell C Robert

Role Director

Sold 3,000 shs ($571K)

Type	Security	Shares	Price	Value
Sale	Common Stock	3,000	$190.39	$571K

Holdings After Transaction: Common Stock — 35,277 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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^*

Campbell C Robert

(Last) (First) (Middle)

4145 PINTA COURT

(Street)

CORAL GABLES FL 33146

(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)
09/11/2025

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	09/11/2025		S		3,000(1)	D	$190.39	35,277	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 were sold in 47 separate transactions, each with a price of $190.39. The reporting person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold in each transaction.

Remarks:

	\s\ Alberto de Cardenas For: Robert Campbell	09/16/2025
	** 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 on this Form 4?

The Form 4 reports that director Robert C. Campbell sold 3,000 common shares on 09/11/2025 at $190.39 per share.

How many shares does the reporting person own after the sale?

After the reported transactions, the reporting person beneficially owned 35,277 shares directly.

Were the 3,000 shares sold in one transaction?

No. The filing states the shares were sold in 47 separate transactions, each at $190.39, and the filer will provide per-transaction counts on request.

Does the Form 4 show any derivative transactions or amendments?

No derivative securities are reported in Table II and there is no amendment date indicated in the form.

Did the filer indicate a 10b5-1 trading plan or similar?

The form does not indicate that the sale was made pursuant to a 10b5-1 plan; no checkbox for such a plan is marked in the provided content.