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  4. [D] MASTEC INC SEC Filing

MasTec (NYSE: MTZ) reports $484M Rule 506(b) exempt equity sale completed

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
D

Rhea-AI Filing Summary

MasTec, Inc., a Florida corporation, filed a new Form D notice for an exempt offering of equity securities under Rule 506(b) of Regulation D. The company reports total amounts sold of $484,445,581 USD, with $0 USD remaining to be sold. Reported revenue size is in the over $100,000,000 range, indicating a large issuer. No sales commissions are disclosed, and finders' fees are reported as $0 USD. The notice is signed by Executive Vice President, General Counsel and Secretary Alberto de Cardenas.

Positive

  • None.

Negative

  • None.
Total Amount Sold $484,445,581 USD Aggregate amount of equity securities sold in the exempt offering
Total Remaining to be Sold $0 USD Amount of the offering reported as still available for sale
Issuer Revenue Range Over $100,000,000 Issuer size based on revenue category selected in Form D
Finders' Fees $0 USD Reported finders’ fees expenses associated with the offering
Date of First Sale 2026-07-20 Reported first sale date for the exempt offering
Form D regulatory
"FORM D Notice of Exempt Offering of Securities"
Form D is a short notice filed with the U.S. Securities and Exchange Commission when a company raises money using a private offering exemption instead of a full public registration. Think of it as a public receipt that lists basic facts about the fundraiser—amount sought, how much has been sold, and who the issuer is—without the full audited disclosures of a public offering. Investors use it to spot private financings, assess potential dilution or fundraising activity, and find contact information, but it is not a substitute for detailed due diligence.
Rule 506(b) regulatory
"Rule 506(b) is selected in the Federal Exemption(s) section"
Rule 506(b) is a U.S. securities exemption that lets companies sell shares or debt privately without full public registration, provided sales are primarily to accredited investors, up to 35 non‑accredited but financially knowledgeable buyers, and there is no public advertising or solicitation. It matters to investors because offerings under 506(b) usually include less public disclosure than registered securities—like buying from a private seller rather than a retail store—so buyers must do more of their own fact‑checking and rely on their financial sophistication.
Regulation D regulatory
"claiming a Regulation D exemption for the offering"
Regulation D is a set of rules that govern how companies can raise money from investors without going through the full process required for public stock offerings. It provides simplified options for private placements, making it easier for companies to seek investments from a smaller group of investors. For investors, it offers opportunities to invest in private companies, often with fewer restrictions, but also with different levels of risk and disclosure.
covered securities regulatory
"If the securities that are the subject of this Form D are "covered securities""
finders' fees financial
"Provide separately the amounts of sales commissions and finders fees expenses"
A finders' fee is a payment made to a person or firm that introduces two parties who then complete a business deal, such as a sale, investment or loan. Think of the finder as a matchmaker who gets paid for bringing the parties together; for investors this matters because the fee reduces the deal’s net proceeds, can affect returns, and may signal a potential conflict of interest that should be disclosed.
Offering Type shelf/ATM

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FAQ

What type of securities is MasTec (MTZ) offering in this Form D filing?
MasTec is offering equity securities in this exempt offering. The Form D specifies the security type as equity, with no debt or warrant securities indicated for this notice.

How much has MasTec (MTZ) sold in its exempt equity offering?
MasTec reports total amounts sold of $484,445,581 USD. The filing also notes that the total remaining to be sold is $0 USD, indicating the reported offering amount has been fully sold.

Under which exemption is MasTec (MTZ) conducting this securities offering?
The offering is conducted under Rule 506(b) of Regulation D. This rule provides a federal exemption from registration for certain private offerings, subject to specific conditions under the Securities Act of 1933.

What is MasTec’s (MTZ) reported revenue size in this Form D?
MasTec indicates its issuer size in the “Over $100,000,000” revenue range. This places the company in the largest revenue category listed in the Form D issuer size section.

Are there any sales commissions or finders’ fees in MasTec’s (MTZ) Form D offering?
The Form D reports finders’ fees of $0 USD. No separate sales commission amounts are disclosed in the excerpt provided, indicating no finders’ fee expenses for this offering.

Is MasTec’s (MTZ) Form D filing a new notice or an amendment?
The Form D is marked as a New Notice, not an amendment. The filing also reports a date of first sale of 2026-07-20 for the exempt equity offering.

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Intentional misstatements or omissions of fact constitute federal criminal violations. See 18 U.S.C. 1001.

FORM D

Notice of Exempt Offering of Securities
OMB APPROVAL
OMB Number: 3235-0076
Estimated average burden
hours per response: 4.00

1. Issuer's Identity

CIK (Filer ID Number) Previous Names
None
Entity Type
0000015615
BURNUP & SIMS INC
X Corporation
Limited Partnership
Limited Liability Company
General Partnership
Business Trust
Other (Specify)

Name of Issuer
MASTEC INC
Jurisdiction of Incorporation/Organization
FLORIDA
Year of Incorporation/Organization
X Over Five Years Ago
Within Last Five Years (Specify Year)
Yet to Be Formed

2. Principal Place of Business and Contact Information

Name of Issuer
MASTEC INC
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12TH FLOOR
City State/Province/Country ZIP/PostalCode Phone Number of Issuer
CORAL GABLES FLORIDA 33134 305-599-1800

3. Related Persons

Last Name First Name Middle Name
Mas Jorge
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name First Name Middle Name
Mas Jose
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: X Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name First Name Middle Name
Apple Robert
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: X Executive Officer Director Promoter

Clarification of Response (if Necessary):

Last Name First Name Middle Name
DiMarco Paul
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: X Executive Officer Director Promoter

Clarification of Response (if Necessary):

Last Name First Name Middle Name
de Cardenas Alberto
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: X Executive Officer Director Promoter

Clarification of Response (if Necessary):

Last Name First Name Middle Name
Campbell Robert
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name First Name Middle Name
Csiszar Ernst
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name First Name Middle Name
Dwyer Robert
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name First Name Middle Name
Johnson Julia
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name First Name Middle Name
Palomarez Javier
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name First Name Middle Name
Parker Ava
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name First Name Middle Name
Miranda Manuel
Street Address 1 Street Address 2
800 S. DOUGLAS ROAD 12th Floor
City State/Province/Country ZIP/PostalCode
Coral Gables FLORIDA 33134
Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

4. Industry Group

Agriculture
Banking & Financial Services
Commercial Banking
Insurance
Investing
Investment Banking
Pooled Investment Fund
Is the issuer registered as
an investment company under
the Investment Company
Act of 1940?
Yes No
Other Banking & Financial Services
Business Services
Energy
Coal Mining
Electric Utilities
Energy Conservation
Environmental Services
Oil & Gas
Other Energy
Health Care
Biotechnology
Health Insurance
Hospitals & Physicians
Pharmaceuticals
Other Health Care
Manufacturing
Real Estate
Commercial
Construction
REITS & Finance
Residential
Other Real Estate
Retailing
Restaurants
Technology
Computers
Telecommunications
Other Technology
Travel
Airlines & Airports
Lodging & Conventions
Tourism & Travel Services
Other Travel
X
 Other

5. Issuer Size

Revenue Range OR Aggregate Net Asset Value Range
No Revenues No Aggregate Net Asset Value
$1 - $1,000,000 $1 - $5,000,000
$1,000,001 - $5,000,000 $5,000,001 - $25,000,000
$5,000,001 - $25,000,000 $25,000,001 - $50,000,000
$25,000,001 - $100,000,000 $50,000,001 - $100,000,000
X Over $100,000,000 Over $100,000,000
Decline to Disclose Decline to Disclose
Not Applicable Not Applicable

6. Federal Exemption(s) and Exclusion(s) Claimed (select all that apply)

Rule 504(b)(1) (not (i), (ii) or (iii))
Rule 504 (b)(1)(i)
Rule 504 (b)(1)(ii)
Rule 504 (b)(1)(iii)
X Rule 506(b)
Rule 506(c)
Securities Act Section 4(a)(5)
Investment Company Act Section 3(c)
Section 3(c)(1) Section 3(c)(9)
Section 3(c)(2) Section 3(c)(10)
Section 3(c)(3) Section 3(c)(11)
Section 3(c)(4) Section 3(c)(12)
Section 3(c)(5) Section 3(c)(13)
Section 3(c)(6) Section 3(c)(14)
Section 3(c)(7)

7. Type of Filing

X New Notice Date of First Sale 2026-07-20 First Sale Yet to Occur
Amendment

8. Duration of Offering

Does the Issuer intend this offering to last more than one year?
Yes X No

9. Type(s) of Securities Offered (select all that apply)

X Equity Pooled Investment Fund Interests
Debt Tenant-in-Common Securities
Option, Warrant or Other Right to Acquire Another Security Mineral Property Securities
Security to be Acquired Upon Exercise of Option, Warrant or Other Right to Acquire Security Other (describe)

10. Business Combination Transaction

Is this offering being made in connection with a business combination transaction, such as a merger, acquisition or exchange offer?
X Yes No

Clarification of Response (if Necessary):

11. Minimum Investment

Minimum investment accepted from any outside investor $0 USD

12. Sales Compensation

Recipient
Recipient CRD Number X None
(Associated) Broker or Dealer X None
(Associated) Broker or Dealer CRD Number X None
Street Address 1 Street Address 2
City State/Province/Country ZIP/Postal Code
State(s) of Solicitation (select all that apply)
Check "All States" or check individual States		 All States
Foreign/non-US

13. Offering and Sales Amounts

Total Offering Amount $484,445,581 USD
or Indefinite
Total Amount Sold $484,445,581 USD
Total Remaining to be Sold $0 USD
or Indefinite

Clarification of Response (if Necessary):

14. Investors

 Select if securities in the offering have been or may be sold to persons who do not qualify as accredited investors, and enter the number of such non-accredited investors who already have invested in the offering.
Regardless of whether securities in the offering have been or may be sold to persons who do not qualify as accredited investors, enter the total number of investors who already have invested in the offering:
5

15. Sales Commissions & Finder's Fees Expenses

Provide separately the amounts of sales commissions and finders fees expenses, if any. If the amount of an expenditure is not known, provide an estimate and check the box next to the amount.

Sales Commissions $0 USD
Estimate
Finders' Fees $0 USD
Estimate

Clarification of Response (if Necessary):

16. Use of Proceeds

Provide the amount of the gross proceeds of the offering that has been or is proposed to be used for payments to any of the persons required to be named as executive officers, directors or promoters in response to Item 3 above. If the amount is unknown, provide an estimate and check the box next to the amount.

$0 USD
Estimate

Clarification of Response (if Necessary):

Signature and Submission

Please verify the information you have entered and review the Terms of Submission below before signing and clicking SUBMIT below to file this notice.

Terms of Submission

In submitting this notice, each issuer named above is:
  • Notifying the SEC and/or each State in which this notice is filed of the offering of securities described and undertaking to furnish them, upon written request, in the accordance with applicable law, the information furnished to offerees.*
  • Irrevocably appointing each of the Secretary of the SEC and, the Securities Administrator or other legally designated officer of the State in which the issuer maintains its principal place of business and any State in which this notice is filed, as its agents for service of process, and agreeing that these persons may accept service on its behalf, of any notice, process or pleading, and further agreeing that such service may be made by registered or certified mail, in any Federal or state action, administrative proceeding, or arbitration brought against the issuer in any place subject to the jurisdiction of the United States, if the action, proceeding or arbitration (a) arises out of any activity in connection with the offering of securities that is the subject of this notice, and (b) is founded, directly or indirectly, upon the provisions of: (i) the Securities Act of 1933, the Securities Exchange Act of 1934, the Trust Indenture Act of 1939, the Investment Company Act of 1940, or the Investment Advisers Act of 1940, or any rule or regulation under any of these statutes, or (ii) the laws of the State in which the issuer maintains its principal place of business or any State in which this notice is filed.
  • Certifying that, if the issuer is claiming a Regulation D exemption for the offering, the issuer is not disqualified from relying on Rule 504 or Rule 506 for one of the reasons stated in Rule 504(b)(3) or Rule 506(d).

Each Issuer identified above has read this notice, knows the contents to be true, and has duly caused this notice to be signed on its behalf by the undersigned duly authorized person.

For signature, type in the signer's name or other letters or characters adopted or authorized as the signer's signature.

Issuer Signature Name of Signer Title Date
MASTEC INC /s/ Alberto de Cardenas Alberto de Cardenas Executive Vice President, General Counsel and Secretary 2026-07-24

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.

* This undertaking does not affect any limits Section 102(a) of the National Securities Markets Improvement Act of 1996 ("NSMIA") [Pub. L. No. 104-290, 110 Stat. 3416 (Oct. 11, 1996)] imposes on the ability of States to require information. As a result, if the securities that are the subject of this Form D are "covered securities" for purposes of NSMIA, whether in all instances or due to the nature of the offering that is the subject of this Form D, States cannot routinely require offering materials under this undertaking or otherwise and can require offering materials only to the extent NSMIA permits them to do so under NSMIA's preservation of their anti-fraud authority.

Source: View Original Filing on SEC EDGAR