MTZ / MasTec, Inc. - SEC फाइलिंग, वार्षिक रिपोर्ट, प्रॉक्सी स्टेटमेंट

मासटेक, इंक.
US ˙ NYSE ˙ US5763231090

मूलभूत आँकड़े
LEI 549300TMDIT8WREDOF45
CIK 15615
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to MasTec, Inc.
SEC Filings (Chronological Order)
यह पृष्ठ SEC फाइलिंग की एक पूरी, कालानुक्रमिक सूची प्रदान करता है, ओनरशिप फाइलिंग को छोड़कर, जो हम अन्यत्र प्रदान करते हैं।
August 27, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 22, 2025 MasTec, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 22, 2025 MasTec, Inc. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number

August 27, 2025 EX-99.1

Notice of Blackout Period Under The MasTec, Inc. 401(k) Retirement Plan To: All Directors and Section 16 Officers of MasTec, Inc. From: Sandy Orr Date: August 26, 2025 Subject: Notice of Blackout Trading Restriction Period (the “BTR Blackout Period”)

EX-99.1 Exhibit 99.1 Notice of Blackout Period Under The MasTec, Inc. 401(k) Retirement Plan To: All Directors and Section 16 Officers of MasTec, Inc. From: Sandy Orr Date: August 26, 2025 Subject: Notice of Blackout Trading Restriction Period (the “BTR Blackout Period”) Class of Securities Subject to the BTR Blackout Period This notice (“Notice”) is to inform you of significant restrictions on yo

July 31, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, Inc

July 31, 2025 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2025 MasTec, Inc. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

July 31, 2025 EX-99.1

MasTec Reports Second Quarter 2025 Results and Updates 2025 Financial Guidance

Exhibit 99.1 Contact: 800 S. Douglas Road, 12th Floor Chris Mecray, Vice President - Investor Relations Coral Gables, Florida 33134 305-507-7304 Tel: 305-599-1800 [email protected] www.mastec.com MasTec Reports Second Quarter 2025 Results and Updates 2025 Financial Guidance Second Quarter 2025 Highlights •Revenue of $3.5 billion increased 20% year-over-year, a quarterly record; strong 25% co

July 31, 2025 EX-95.1

Mine Safety Disclosures.

Exhibit 95.1 MINE SAFETY DISCLOSURES We operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the quarter ended June 30, 2025. Citations and o

June 27, 2025 EX-10.1

Amended and Restated Credit Agreement, dated as of June 26, 2025, by and among MasTec, Inc. and MasTec North America, Inc. as Borrowers, Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, and the other lenders party thereto

EX-10.1 Exhibit 10.1 Execution Version Published CUSIP Number: 57632EAY1 Published Committed (USD) Facility CUSIP Number: 57632EBC8 Published Committed (MC) Facility CUSIP Number: 57632EAZ8 Florida documentary stamp tax required by law in the amount of $2,450 has been paid or will be paid directly to the Department of Revenue. Certificate of Registration No. 26-8000694050-8. AMENDED AND RESTATED C

June 27, 2025 EX-10.2

Term Loan Agreement, dated as of June 26, 2025, by and among MasTec, Inc. and MasTec North America, Inc., as Borrowers, Bank of America, N.A., as Administrative Agent, and the other lenders party thereto

EX-10.2 Exhibit 10.2 Execution Version Published CUSIP Number: 57632EBA2 Published Term Loan Facility CUSIP: 57632EBB0 Florida documentary stamp tax required by law in the amount of $2,450 has been paid or will be paid directly to the Department of Revenue. Certificate of Registration No. 26-8000694050-8. TERM LOAN AGREEMENT Dated as of June 26, 2025 among MASTEC, INC. and MASTEC NORTH AMERICA, IN

June 27, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 26, 2025 MASTEC, INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 26, 2025 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

June 26, 2025 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 A.

May 27, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 22, 2025 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

May 2, 2025 EX-99.1

MasTec Reports First Quarter 2025 Results and Raises Financial Guidance for the Year

Exhibit 99.1 Contact: 800 S. Douglas Road, 12th Floor Chris Mecray, Vice President - Investor Relations Coral Gables, Florida 33134 305-507-7304 Tel: 305-599-1800 [email protected] www.mastec.com MasTec Reports First Quarter 2025 Results and Raises Financial Guidance for the Year First Quarter 2025 Highlights • Revenue of $2.8 billion increased 6%; strong 21% combined growth contribution fro

May 2, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2025 MASTEC, INC. (Exact N

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2025 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

May 1, 2025 EX-95.1

Mine Safety Disclosures.

Exhibit 95.1 MINE SAFETY DISCLOSURES We operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the quarter ended March 31, 2025. Citations and

May 1, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, In

April 22, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 16, 2025 MASTEC, INC. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 16, 2025 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

April 10, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )         Filed by the Registrant ☒     Filed by a party other than the Registrant  ☐         Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (

April 10, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ De

February 28, 2025 EX-19.1

Policy Regarding Insider Trading

Exhibit 19.1 MASTEC, INC. Policy Regarding Insider Trading THIS POLICY HAS BEEN APPROVED BY THE BOARD OF DIRECTORS OF MASTEC, INC. AS AMENDED ON MARCH 9, 2023 AND IS APPLICABLE TO ALL INSIDERS OF MASTEC, INC. Purpose of MasTec’s Insider Trading Policy For many years, the Securities and Exchange Commission (the "SEC") and the Justice Department have pursued individuals for violations of the laws wi

February 28, 2025 EX-25.1

Statement of Eligibility and Qualification of Trustee on Form T-1 under Trust Indenture Act of 1939, as amended, of U.S. Bank Trust Company, National Association as trustee under the Indentures.

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-18

February 28, 2025 EX-99.1

MasTec Announces Fourth Quarter and Annual 2024 Financial Results With Record Backlog and Provides Initial 2025 Guidance

EX-99.1 Exhibit 99.1 Contact: 800 S. Douglas Road, 12th Floor J. Marc Lewis, Vice President-Investor Relations Coral Gables, Florida 33134 305-406-1815 Tel: 305-599-1800 [email protected] www.mastec.com For Immediate Release MasTec Announces Fourth Quarter and Annual 2024 Financial Results With Record Backlog and Provides Initial 2025 Guidance • Record Fourth Quarter and Annual Revenue of $3.4

February 28, 2025 EX-21.1

Subsidiaries of MasTec, Inc.

Exhibit 21.1 MasTec, Inc. SUBSIDIARIES OF MASTEC, INC. December 31, 2024 Following is a listing of subsidiaries of MasTec, Inc., which includes the name of the subsidiary, as well as any name under which the subsidiary does business (in italics), and the subsidiary's related jurisdiction of incorporation or organization. Certain subsidiaries have been omitted given that such subsidiaries, individu

February 28, 2025 S-3ASR

As filed with the Securities and Exchange Commission on February 28, 2025

Table of Contents As filed with the Securities and Exchange Commission on February 28, 2025 Registration No.

February 28, 2025 EX-FILING FEES

Filing Fee Table.

Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-3 (Form Type) MASTEC, INC. (Exact name of registrant as specified in its charter ) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule (1) Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry

February 28, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, Inc. (E

February 28, 2025 EX-95.1

Mine Safety Disclosure.

Exhibit 95.1 MINE SAFETY DISCLOSURES We operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the year ended December 31, 2024. Citations and

February 28, 2025 EX-10.23

Amendment No. 2 to Credit Agreement, dated as of December 9, 2024, by and among MasTec, Inc. and MasTec North America, Inc. as Borrowers and Bank of America, N.A., as Administrative Agent.

Exhibit 10.23 Execution Version AMENDMENT NO. 2 TO CREDIT AGREEMENT THIS AMENDMENT NO. 2 TO CREDIT AGREEMENT dated as of December 9, 2024 (this “Amendment”), is among MASTEC, INC., a Florida corporation (the “Company”), MASTEC NORTH AMERICA, INC., a Florida corporation (together with the Company, collectively, the “Borrowers)”, and BANK OF AMERICA, N.A., in its capacity as the Administrative Agent

February 28, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 27, 2025 MASTEC, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 27, 2025 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

October 31, 2024 EX-99.1

MasTec Announces Third Quarter 2024 Financial Results and Increases Guidance for the Year

Contact: 800 S. Douglas Road, 12th Floor J. Marc Lewis, Vice President-Investor Relations Coral Gables, Florida 33134 305-406-1815 Tel: 305-599-1800 [email protected] www.mastec.com For Immediate Release MasTec Announces Third Quarter 2024 Financial Results and Increases Guidance for the Year • Third Quarter 2024 Revenue of $3.3 Billion with Significant Margin Expansion Over Last Year • Third

October 31, 2024 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 31, 2024 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

October 31, 2024 EX-95.1

Mine Safety Disclosures.

Exhibit 95.1 MINE SAFETY DISCLOSURES We operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the quarter ended September 30, 2024. Citations

October 31, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec

September 10, 2024 SC 13D/A

MTZ / MasTec, Inc. / MAS JOSE RAMON - SC 13D/A Activist Investment

SC 13D/A SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Act of 1934 (Amendment No. 3) MasTec, Inc. (Name of Issuer) Common Stock, Par Value $.10 Per Share (Title of Class of Securities) 576323109 (CUSIP Number) Jose Mas MasTec, Inc. 800 S. Douglas Road, 12th Floor Miami, Florida 33134 (305) 599-1800 (Name, address and telephone number of person authoriz

September 10, 2024 EX-99.1

VARIABLE SHARE FORWARD TRANSACTION AMENDMENT NO. 2 AGREEMENT dated as of August 16, 2024

EX-99.1 Exhibit 99.1 Execution Version VARIABLE SHARE FORWARD TRANSACTION AMENDMENT NO. 2 AGREEMENT dated as of August 16, 2024 BETWEEN JORGE MAS HOLDINGS I, LLC and BANK OF AMERICA, N.A. THIS VARIABLE SHARE FORWARD TRANSACTION AMENDMENT NO. 2 AGREEMENT (this “Amendment Agreement”) with respect to the Confirmation (as defined below) is made as of August 16, 2024 between Jorge Mas Holdings I, LLC (

September 10, 2024 SC 13D/A

MTZ / MasTec, Inc. / MAS JORGE - SC 13D/A Activist Investment

SC 13D/A SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Act of 1934 (Amendment No. 8)* MasTec, Inc. (Name of Issuer) Common Stock, Par Value $.10 Per Share (Title of Class of Securities) 576323109 (CUSIP Number) Jorge Mas MasTec, Inc. 800 S. Douglas Road, 12th Floor Miami, Florida 33134 (305) 599-1800 (Name, address and telephone number of person author

September 10, 2024 EX-99.1

VARIABLE SHARE FORWARD TRANSACTION AMENDMENT NO. 2 AGREEMENT dated as of August 16, 2024

EX-99.1 2 d863670dex991.htm EX-99.1 Exhibit 99.1 Execution Version VARIABLE SHARE FORWARD TRANSACTION AMENDMENT NO. 2 AGREEMENT dated as of August 16, 2024 BETWEEN JOSE RAMON MAS and BANK OF AMERICA, N.A. THIS VARIABLE SHARE FORWARD TRANSACTION AMENDMENT NO. 2 AGREEMENT (this “Amendment Agreement”) with respect to the Confirmation (as defined below) is made as of August 16, 2024 between Jose Ramon

August 2, 2024 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 1, 2024 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

August 2, 2024 EX-99.1

MasTec Announces Second Quarter 2024 Financial Results and Updates Guidance for the Year

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec Announces Second Quarter 2024 Financial Results and Updates Guidance for the Year • Record Second Quarter 2024 Revenue of $3.0 Billion • Second Quarter 2024 Diluted Earning

August 1, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, Inc

August 1, 2024 EX-95.1

Mine Safety Disclosures.

Exhibit 95.1 MINE SAFETY DISCLOSURES We operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the quarter ended June 30, 2024. Citations and o

June 26, 2024 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 A.

June 20, 2024 EX-99.1

MasTec, Inc. Announces Results of Early Participation in Tender Offer and Consent Solicitation

Exhibit 99.1 MasTec, Inc. Announces Results of Early Participation in Tender Offer and Consent Solicitation CORAL GABLES, Fla., June 20, 2024 /PRNewswire/ - MasTec, Inc. (NYSE: MTZ) (“MasTec”) announced that IEA Energy Services LLC, a wholly owned subsidiary of MasTec (“IEA”), has received valid consents from holders (the “Holders”) of not less than a majority in principal amount of IEA’s 6.625% S

June 20, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 20, 2024 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

June 10, 2024 EX-4.2

Twenty-First Supplemental Indenture

Exhibit 4.2 Execution Version MASTEC, INC. TO U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, As Trustee TWENTY-FIRST SUPPLEMENTAL INDENTURE Dated as of June 10, 2024 to the INDENTURE Dated as of June 5, 2009 5.900% SENIOR NOTES DUE 2029 TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Relationship to Base Indenture 2 Section 1.02 Additional Definitions 2 Sec

June 10, 2024 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 10, 2024 MASTEC, INC. (Exact name of registrant as specified in its charter) Florida 001-08106 65-0829355 (State or other jurisdiction of Incorporation) (Commission File Number)

June 6, 2024 8-K

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 5, 2024 MASTEC, INC. (Exact name of registrant as specified in its charter) Florida 001-08106 65-0829355 (State or other jurisdiction of Incorporation) (Commission File Number) (

June 6, 2024 EX-99.1

MasTec Announces Pricing of $550,000,000 of Senior Notes

Exhibit 99.1 MasTec Announces Pricing of $550,000,000 of Senior Notes CORAL GABLES, Fla., June 5, 2024 /PRNewswire/ - MasTec, Inc. (NYSE: MTZ) (“MasTec”) today announced the pricing of its public offering of $550,000,000 aggregate principal amount of senior notes due 2029. The notes will pay interest semi-annually at a rate of 5.900% and will mature on June 15, 2029. The notes were priced at 99.95

June 6, 2024 EX-1.1

Underwriting Agreement, dated June 5, 2024, by and among the Company and J.P. Morgan Securities LLC, and BofA Securities, Inc., as representatives of the underwriters named therein.

Exhibit 1.1 $550,000,000 MasTec, Inc. 5.900% Senior Notes due 2029 Underwriting Agreement June 5, 2024 J.P. MORGAN SECURITIES LLC BOFA SECURITIES, INC. As Representatives of the several Underwriters named in Schedule I hereto c/o J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 c/o BofA Securities, Inc. One Bryant Park New York, New York 10036 Ladies and Gentlemen: MasTec, In

June 6, 2024 EX-FILING FEES

EX-FILING FEES Calculation of Filing Fee Table (Form Type) MasTec, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Max

Exhibit 107 EX-FILING FEES Calculation of Filing Fee Table 424(b)(5)(1) (Form Type) MasTec, Inc.

June 6, 2024 424B5

$550,000,000 MasTec, Inc. 5.900% Senior Notes due 2029

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-268812 PROSPECTUS SUPPLEMENT (To prospectus dated December 15, 2022) $550,000,000 MasTec, Inc. 5.900% Senior Notes due 2029 We are offering $550,000,000 aggregate principal amount of our 5.900% Senior Notes due 2029 (the “notes”). The notes will mature on June 15, 2029. We will pay interest on the notes semi-annually in arrear

June 5, 2024 424B5

Subject to Completion, Preliminary Prospectus Supplement dated June 5, 2024

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-268812 This preliminary prospectus supplement and the accompanying prospectus relate to an effective registration statement under the Securities Act of 1933, as amended, but are not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and

June 5, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 5, 2024 MASTEC, INC. (Exact name of registrant as specified in its charter) Florida 001-08106 65-0829355 (State or other jurisdiction of Incorporation) (Commission File Number) (

June 5, 2024 EX-99.1

MasTec Announces Commencement of Cash Tender Offer for IEA’s 6.625% Senior Notes due 2029

Exhibit 99.1 MasTec Announces Commencement of Cash Tender Offer for IEA’s 6.625% Senior Notes due 2029 CORAL GABLES, Fla., June 5, 2024 /PRNewswire/ - MasTec, Inc (NYSE: MTZ) (“MasTec”) today announced that IEA Energy Services LLC, a wholly owned subsidiary of MasTec (“IEA”), has commenced a cash tender offer for any and all of its $225.1 million in outstanding principal amount of 6.625% Senior No

June 5, 2024 FWP

Pricing Term Sheet June 5, 2024 MASTEC, INC. 5.900% SENIOR NOTES DUE 2029 Issuer: MasTec, Inc. Principal Amount: $550,000,000 Security Type: Senior Notes Legal Format: SEC Registered Trade Date: June 5, 2024 Settlement Date: June 10, 2024 (T+3)1 Matu

Filed Pursuant to Rule 433 Registration No. 333-268812 Issuer Free Writing Prospectus dated June 5, 2024 Supplementing the Prospectus dated December 15, 2022 and the Preliminary Prospectus Supplement dated June 5, 2024 Pricing Term Sheet June 5, 2024 MASTEC, INC. 5.900% SENIOR NOTES DUE 2029 Issuer: MasTec, Inc. Principal Amount: $550,000,000 Security Type: Senior Notes Legal Format: SEC Registere

June 3, 2024 S-8

As filed with the Securities and Exchange Commission on June 3, 2024

S-8 As filed with the Securities and Exchange Commission on June 3, 2024 Registration No.

June 3, 2024 EX-FILING FEES

Calculation of Filing Fee Table

Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-8 (Form Type) MASTEC, INC. (Exact name of registrant as specified in its charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee(4) Fees to Be Paid Equity Common Stock Other

June 3, 2024 EX-FILING FEES

Calculation of Filing Fee Table

EX-FILING FEES Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-8 (Form Type) MASTEC, INC.

June 3, 2024 S-8

As filed with the Securities and Exchange Commission on June 3, 2024

S-8 As filed with the Securities and Exchange Commission on June 3, 2024 Registration No.

May 17, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 14, 2024 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

May 3, 2024 EX-99.1

MasTec Announces First Quarter 2024 Financial Results and Raises Guidance for the Year

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec Announces First Quarter 2024 Financial Results and Raises Guidance for the Year • Record First Quarter 2024 Revenue of $2.7 Billion • First Quarter 2024 GAAP Net Loss of $3

May 3, 2024 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 2, 2024 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

May 2, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, In

May 2, 2024 EX-95.1

Mine Safety Disclosures.

Exhibit 95.1 MINE SAFETY DISCLOSURES We operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the quarter ended March 31, 2024. Citations and

April 4, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule

April 4, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ De

March 8, 2024 EX-16.1

Letter from BDO USA, P.C.

Exhibit 16.1 March 7, 2024 Securities and Exchange Commission 100 F Street N.E. Washington, D.C. 20549 We have been furnished with a copy of the response to Item 4.01 of Form 8-K for the event that occurred on March 5, 2024, to be filed by our former client, MasTec, Inc. We agree with the statements made in response to that Item insofar as they relate to our Firm. Very truly yours, /s/ BDO USA, P.

March 8, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2024 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

March 1, 2024 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 SEC File Number: 001-08106 CUSIP Number: 576323109 NOTIFICATION OF LATE FILING (Check One)  ☒  Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR For Period Ended: December 31, 2023 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ 

March 1, 2024 EX-FILING FEES

Calculation of Filing Fee Table

Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-8 (Form Type) MASTEC, INC. (Exact name of registrant as specified in its charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee(5) Fees to Be Paid Equity Common Stock Other

March 1, 2024 S-8

As filed with the Securities and Exchange Commission on March 1, 2024

As filed with the Securities and Exchange Commission on March 1, 2024 Registration No.

March 1, 2024 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 29, 2024 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

March 1, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, Inc. (E

March 1, 2024 EX-97.1

Policy Regarding the Mandatory Recovery of Compensation

Exhibit 97.1 MASTEC, INC. Policy Regarding the Mandatory Recovery of Compensation Effective October 2, 2023 I. Applicability and Administration. This Policy Regarding the Mandatory Recovery of Compensation (the “Policy”) applies to any Incentive Compensation paid to the Executive Officers of MasTec, Inc. (the “Company”). This Policy is intended to comply with and be interpreted in accordance with

March 1, 2024 EX-21.1

Subsidiaries of MasTec, Inc.

Exhibit 21.1 MasTec, Inc. SUBSIDIARIES OF MASTEC, INC. December 31, 2023 Following is a listing of subsidiaries of MasTec, Inc., which includes the name of the subsidiary, as well as any name under which the subsidiary does business (in italics), and the subsidiary's related jurisdiction of incorporation or organization. Certain subsidiaries have been omitted given that such subsidiaries, individu

March 1, 2024 EX-99.1

MasTec Announces Fourth Quarter and Annual 2023 Financial Results and Provides Initial 2024 Guidance

Exhibit 99.1 Contact: 800 S. Douglas Road, 12th Floor J. Marc Lewis, Vice President-Investor Relations Coral Gables, Florida 33134 305-406-1815 Tel: 305-599-1800 [email protected] www.mastec.com For Immediate Release MasTec Announces Fourth Quarter and Annual 2023 Financial Results and Provides Initial 2024 Guidance • Record Fourth Quarter and Annual Revenue of $3.3 Billion and $12.0 Billion,

March 1, 2024 EX-95.1

Mine Safety Disclosure.

Exhibit 95.1 MINE SAFETY DISCLOSURES We operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the year ended December 31, 2023. Citations and

February 13, 2024 SC 13G/A

MTZ / MasTec, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: MasTec Inc Title of Class of Securities: Common Stock CUSIP Number: 576323109 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d

November 2, 2023 EX-95.1

Mine Safety Disclosures.

Exhibit 95.1 MINE SAFETY DISCLOSURES We operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the quarter ended September 30, 2023. Citations

November 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec

November 1, 2023 EX-99.1

MasTec Announces Third Quarter 2023 Financial Results and Updates Guidance for the Year

EX-99.1 Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec Announces Third Quarter 2023 Financial Results and Updates Guidance for the Year Coral Gables, FL (October 31, 2023) — MasTec, Inc. (NYSE: MTZ) today announced 2023

November 1, 2023 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 31, 2023 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

October 5, 2023 8-K/A

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2023 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commi

August 4, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2023 MASTEC, INC. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2023 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

August 4, 2023 EX-99.1

MasTec Announces Second Quarter 2023 Financial Results with Record Revenue and Updates Guidance for the Year

EX-99.1 Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel : 305-599-1800 www.mastec.com For Immediate Release MasTec Announces Second Quarter 2023 Financial Results with Record Revenue and Updates Guidance for the Year • Record Second Quarter 2023 Revenue Increased 25% Over Same

August 3, 2023 EX-95.1

Mine Safety Disclosures.

Exhibit 95.1 MINE SAFETY DISCLOSURES We operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the quarter ended June 30, 2023. Citations and o

August 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, Inc

June 20, 2023 11-K

Form 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 A.

May 18, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2023 MASTEC, INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2023 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

May 17, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2023 MASTEC, INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2023 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

May 5, 2023 EX-99.1

MasTec Announces First Quarter 2023 Financial Results with Record Backlog and Updates Guidance for the Year

EX-99.1 Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec Announces First Quarter 2023 Financial Results with Record Backlog and Updates Guidance for the Year • First Quarter 2023 Revenue Increased 32% Over Same Quarter La

May 5, 2023 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2023 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

May 4, 2023 EX-10.1

Employment Agreement, dated March 30, 2023, by and between MasTec, Inc. and Paul DiMarco

Exhibit 10.1 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (the “Agreement”) is entered into on this 30th day of March, 2023 (the “Effective Date”), by and between MASTEC, INC., a Florida corporation (the “Company”), and PAUL DIMARCO (“Employee”). Recitals The Company desires to employ Employee and Employee desires to be employed by the Company on the terms and subject to the conditions set forth

May 4, 2023 EX-95.1

Mine Safety Disclosures.

Exhibit 95.1 MINE SAFETY DISCLOSURES We operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the quarter ended March 31, 2023. Citations and

May 4, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, In

May 4, 2023 EX-10.4

Amendment to the MasTec, Inc. Amended and Restated Bargaining Units ESPP

Exhibit 10.4 AMENDMENT TO THE MASTEC, INC. AMENDED AND RESTATED BARGAINING UNITS ESPP WHEREAS, MasTec, Inc. (the “Company”) maintains the MasTec, Inc. Amended and Restated Bargaining Units ESPP (the “Plan”), established effective as of July 1, 2013, and as most recently amended and restated effective January 1, 2021; and WHEREAS, capitalized terms used herein and not herein defined shall have the

May 4, 2023 EX-10.2

Amended and Restated Employment Agreement, dated March 31, 2023, by and between MasTec, Inc. and George Pita

Exhibit 10.2 AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT (the “Agreement”) is entered into on March 31, 2023 and is effective as of April 1, 2023 (the “Effective Date”), unless the Agreement is revoked by Employee pursuant to Section 14(b)(vi) hereof, by and between MASTEC, INC., a Florida corporation (the “Company”), and GEORGE PITA (“Employee”). Recit

May 4, 2023 EX-10.3

Amendment to the MasTec, Inc. Amended and Restated 2011 Employee Stock Purchase Plan

Exhibit 10.3 AMENDMENT TO THE MASTEC, INC. AMENDED AND RESTATED 2011 EMPLOYEE STOCK PURCHASE PLAN WHEREAS, MasTec, Inc. (the “Company”) maintains the MasTec, Inc. Amended and Restated 2011 Employee Stock Purchase Plan (the “Plan”), established effective as of July 1, 2011, and as most recently amended and restated effective January 1, 2021; and WHEREAS, capitalized terms used herein and not herein

April 4, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14

April 4, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a party other than the Registran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

March 31, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 31, 2023 MASTEC, INC. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 31, 2023 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

March 31, 2023 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 9, 2023 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number

March 16, 2023 EX-10.18

Form of Employee Restricted Stock Agreement for the MasTec, Inc. Amended and Restated 2013 Incentive Compensation Plan

Exhibit 10.18 MASTEC, INC. RESTRICTED STOCK AGREEMENT 1. Award of Shares. MasTec, Inc. (the “Company”) has awarded to the “Recipient” designated below, the “Award” generally described in the Notice of Restricted Stock Award (the “Notice”), which is hereby incorporated by reference, subject to the terms and conditions of the Company’s Amended and Restated 2013 Incentive Compensation Plan (“Plan”).

March 16, 2023 EX-95.1

Mine Safety Disclosure.

Exhibit 95.1 MINE SAFETY DISCLOSURES Two of our acquired businesses operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the year ended Decem

March 16, 2023 EX-21

Subsidiaries of MasTec, Inc

Exhibit 21 MasTec, Inc. SUBSIDIARIES OF MASTEC, INC. December 31, 2022 NORTH AMERICA A-1 Excavating, LLC Wisconsin American Civil Constructors West Coast, LLC ACC West Coast California American Civil Constructors, LLC ACC Mountain West Colorado Cash Construction Company, Inc. Texas Decisive Communications, Inc. Maryland EC Source Services, LLC Florida FNF Construction, Inc. Arizona Foothills Energ

March 16, 2023 EX-10.17

Amendment to the MasTec, Inc. Amended and Restated 2013 Incentive Compensation Plan

Exhibit 10.17 AMENDMENT TO THE MASTEC, INC. AMENDED AND RESTATED 2013 INCENTIVE COMPENSATION PLAN WHEREAS, MasTec, Inc. (the “Company”) maintains the MasTec, Inc. Amended and Restated 2013 Incentive Compensation Plan (the “Plan”); and WHEREAS, capitalized terms used and not herein defined shall have the respective meanings ascribed thereto in the Plan; and WHEREAS, the Company desires to amend the

March 16, 2023 EX-10.20

Form of Employee Restricted Stock Units Agreement for the MasTec, Inc. Amended and Restated 2013 Incentive Compensation Plan

Exhibit 10.20 MASTEC, INC. RESTRICTED STOCK UNITS AGREEMENT 1. Award of Restricted Stock Units. MasTec, Inc. (the “Company”) has awarded to the “Recipient” designated below, the right to receive, at the times specified in Section 2 hereof, shares of the Company’s common stock (collectively the “RSUs”) described in the Notice of Restricted Stock Units Award (the “Notice”), which is hereby incorpora

March 16, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, Inc. (E

March 16, 2023 EX-10.19

Form of Non-Employee Restricted Stock Agreement for the MasTec, Inc. Amended and Restated 2013 Incentive Compensation Plan

Exhibit 10.19 MASTEC, INC. RESTRICTED STOCK AGREEMENT 1. Award of Shares. MasTec, Inc. (the “Company”) has awarded to the “Recipient” designated below, the “Award” generally described in the Notice of Restricted Stock Award (the “Notice”), which is hereby incorporated by reference, subject to the terms and conditions of the Company’s Amended and Restated 2013 Incentive Compensation Plan (“Plan”).

March 15, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 9, 2023 MASTEC, INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 9, 2023 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

March 2, 2023 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 SEC File Number: 001-08106 CUSIP Number: 576323109 NOTIFICATION OF LATE FILING (Check One) ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR For Period Ended: December 31, 2022 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Tr

February 24, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 MASTEC, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

February 24, 2023 EX-99.1

MasTec Announces Fourth Quarter and Annual 2022 Financial Results

EX-99.1 Exhibit 99.1 Contact: 800 S. Douglas Road, 12 th Floor J. Marc Lewis, Vice President-Investor Relations Coral Gables, Florida 33134 305-406-1815 Tel: 305-599-1800 [email protected] www.mastec.com For Immediate Release MasTec Announces Fourth Quarter and Annual 2022 Financial Results • Fourth Quarter 2022 Results Include GAAP Net Income of $3.4 Million, Adjusted EBITDA of $258 Million,

February 9, 2023 SC 13G/A

MTZ / MasTec, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01379-mastecinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: MasTec Inc. Title of Class of Securities: Common Stock CUSIP Number: 576323109 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pur

February 8, 2023 SC 13G/A

US0303822045 / AMERICAN VIRTUAL CLOUD TECHNOLOGIES INC / MASTEC INC - SC 13G/A Passive Investment

SC 13G/A 1 d416033dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2**)* American Virtual Cloud Technologies, Inc. (Name of Issuer) Common Stock, Par Value $.0001 Per Share (Title of Class of Securities) 030382204 (CUSIP Number) December 31, 2022 (Date of Event which Requires Filing of

January 13, 2023 EX-99.1

VARIABLE SHARE FORWARD TRANSACTION PARTIAL UNWIND AND AMENDMENT AGREEMENT dated as of November 28, 2022 BETWEEN JORGE MAS HOLDINGS I, LLC and BANK OF AMERICA, N.A.

EX-99.1 2 d436378dex991.htm EX-99.1 Exhibit 99.1 Execution Version VARIABLE SHARE FORWARD TRANSACTION PARTIAL UNWIND AND AMENDMENT AGREEMENT dated as of November 28, 2022 BETWEEN JORGE MAS HOLDINGS I, LLC and BANK OF AMERICA, N.A. THIS VARIABLE SHARE FORWARD TRANSACTION PARTIAL UNWIND AND AMENDMENT AGREEMENT (this “Amendment Agreement”) with respect to the Confirmation (as defined below) is made a

January 13, 2023 EX-99.2

VARIABLE SHARE FORWARD TRANSACTION UNWIND AGREEMENT dated as of November 28, 2022 BETWEEN JORGE MAS, IN HIS CAPACITY AS TRUSTEE OF THE JOSE RAMON MAS IRREVOCABLE FAMILY TRUST, and BANK OF AMERICA, N.A.

EX-99.2 3 d441141dex992.htm EX-99.2 Exhibit 99.2 Execution Version VARIABLE SHARE FORWARD TRANSACTION UNWIND AGREEMENT dated as of November 28, 2022 BETWEEN JORGE MAS, IN HIS CAPACITY AS TRUSTEE OF THE JOSE RAMON MAS IRREVOCABLE FAMILY TRUST, and BANK OF AMERICA, N.A. THIS VARIABLE SHARE FORWARD TRANSACTION UNWIND AGREEMENT (this “ Unwind Agreement”) with respect to the Confirmation (as defined be

January 13, 2023 SC 13D/A

MTZ / MasTec, Inc. / MAS JOSE RAMON - SC 13D/A Activist Investment

SC 13D/A 1 d441141dsc13da.htm SC 13D/A SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Act of 1934 (Amendment No. 2) MasTec, Inc. (Name of Issuer) Common Stock, Par Value $.10 Per Share (Title of Class of Securities) 576323109 (CUSIP Number) Jose Mas MasTec, Inc. 800 S. Douglas Road, 12th Floor Miami, Florida 33134 (305) 599-1800 (Name, address and telep

January 13, 2023 EX-99.1

VARIABLE SHARE FORWARD TRANSACTION PARTIAL UNWIND AND AMENDMENT AGREEMENT dated as of November 28, 2022 BETWEEN JOSE RAMON MAS and BANK OF AMERICA, N.A.

EX-99.1 2 d441141dex991.htm EX-99.1 Exhibit 99.1 Execution Version VARIABLE SHARE FORWARD TRANSACTION PARTIAL UNWIND AND AMENDMENT AGREEMENT dated as of November 28, 2022 BETWEEN JOSE RAMON MAS and BANK OF AMERICA, N.A. THIS VARIABLE SHARE FORWARD TRANSACTION PARTIAL UNWIND AND AMENDMENT AGREEMENT (this “Amendment Agreement”) with respect to the Confirmation (as defined below) is made as of Novemb

January 13, 2023 SC 13D/A

MTZ / MasTec, Inc. / MAS JORGE - SC 13D/A Activist Investment

SC 13D/A 1 d436378dsc13da.htm SC 13D/A SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Act of 1934 (Amendment No. 7)* MasTec, Inc. (Name of Issuer) Common Stock, Par Value $.10 Per Share (Title of Class of Securities) 576323109 (CUSIP Number) Jorge Mas MasTec, Inc. 800 S. Douglas Road, 12th Floor Miami, Florida 33134 (305) 599-1800 (Name, address and tel

December 22, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 21, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

December 15, 2022 EX-FILING FEES

Filing Fee Table.

Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-3 (Form Type) MASTEC, INC. (Exact name of registrant as specified in its charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forw

December 15, 2022 S-3ASR

As filed with the Securities and Exchange Commission on December 15, 2022

Table of Contents As filed with the Securities and Exchange Commission on December 15, 2022 Registration No.

December 15, 2022 EX-25.1

Statement of Eligibility and Qualification of Trustee on Form T-1 under Trust Indenture Act of 1939, as amended, of U.S. Bank Trust Company, National Association as trustee under the Indentures.

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ? Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-18

November 4, 2022 EX-99.1

MasTec Announces Third Quarter 2022 Financial Results with Record Backlog and Updated Annual 2022 Guidance

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec Announces Third Quarter 2022 Financial Results with Record Backlog and Updated Annual 2022 Guidance ? Third Quarter 2022 Revenue Increased to $2.5 Billion with a 38% Year O

November 4, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 3, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

November 3, 2022 EX-95.1

Mine Safety Disclosure.

Exhibit 95.1 MINE SAFETY DISCLOSURES Two of our acquired businesses operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (?MSHA?) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. ? 801 et seq. (the ?Mine Act?). Set forth below is the required information regarding certain mining safety and health matters for the quarter ended Se

November 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec

October 24, 2022 EX-99.1

MasTec, Inc. Announces Expiration and Final Results of Exchange Offer and Consent Solicitation

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec, Inc. Announces Expiration and Final Results of Exchange Offer and Consent Solicitation Coral Gables, FL (October 24, 2022) ? MasTec, Inc. (NYSE: MTZ) (the ?Company?) today

October 24, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

October 17, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 17, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

October 17, 2022 EX-99.1

MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation Coral Gables, FL (October 17, 2022) ? MasTec, Inc. (NYSE: MTZ) (the ?Company?) today announced its amen

October 7, 2022 8-K

Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 7, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

October 7, 2022 EX-FILING FEES

Filing Fee Table+

EXHIBIT 107 Calculation of Filing Fee Tables Form S-3 (Form Type) MasTec, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forw

October 7, 2022 S-3ASR

As filed with the Securities and Exchange Commission on October 7, 2022

Table of Contents As filed with the Securities and Exchange Commission on October 7, 2022 Registration No.

September 26, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 26, 2022 MASTEC, INC. (

425 1 d369906d425.htm 425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 26, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorpora

September 26, 2022 EX-99.1

MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation Coral Gables, FL (September 26, 2022) ? MasTec, Inc. (NYSE: MTZ) (the ?Company?) today announced its am

September 26, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 26, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Num

September 12, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 12, 2022 MASTEC, INC. (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 12, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Num

September 12, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 12, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Num

September 12, 2022 EX-99.1

MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation

Exhibit 99.1 Contact: 800 S. Douglas Road, 12th Floor J. Marc Lewis, Vice President-Investor Relations Coral Gables, Florida 33134 305-406-1815 Tel: 305-599-1800 [email protected] www.mastec.com For Immediate Release MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation Coral Gables, FL (September 12, 2022) ? MasTec, Inc. (NYSE: MTZ) (the ?Company?) today announced its am

September 8, 2022 424B3

LETTER TO IEA STOCKHOLDERS MERGER PROPOSED—YOUR VOTE IS VERY IMPORTANT

Table of Contents Filed pursuant to Rule 424(b)(3) Registration No. 333-267128 LETTER TO IEA STOCKHOLDERS MERGER PROPOSED?YOUR VOTE IS VERY IMPORTANT Dear Infrastructure and Energy Alternatives, Inc. Stockholder: On July 24, 2022, Infrastructure and Energy Alternatives, Inc. (referred to as ?IEA?), MasTec, Inc. (referred to as ?MasTec?) and Indigo Acquisition I Corp., a direct wholly owned subsidi

September 6, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 6, 2022 MASTEC, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 6, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

September 6, 2022 EX-99.1

MasTec and IEA Announce Expiration of Hart-Scott-Rodino Waiting Period for their Pending Transaction

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec and IEA Announce Expiration of Hart-Scott-Rodino Waiting Period for their Pending Transaction Coral Gables, FL and Indianapolis, IN (September 6, 2022) MasTec, Inc. (NYSE:

September 6, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 6, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

September 6, 2022 CORRESP

MasTec, Inc. 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 (305) 599-1800

MasTec, Inc. 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 (305) 599-1800 September 6, 2022 VIA EDGAR Ms. Melanie Singh Mr. Ruairi Regan Securities and Exchange Commission Division of Corporation Finance Office of Real Estate & Construction 100 F Street, N.E. Washington, DC 20549-7010 Re: MasTec, Inc. Registration Statement on Form S-4 Filed August 29, 2022 File No. 333-267128 Dear M

September 2, 2022 EX-99.1

MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables , Flor ida 33134 Tel : 305-599-1800 www.mastec.com For Immediate Release MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation Coral Gables, FL (September 2, 2022) ? MasTec, Inc. (NYSE: MTZ) (the ?Company?) today announced its

September 2, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 2, 2022 MASTEC, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 2, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

September 2, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 2, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

September 1, 2022 EX-10.1

Amendment No. 1 to Credit Agreement, dated as of September 1, 2022, by and among MasTec, Inc. and MasTec North America, Inc. as Borrowers, Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, and the other lenders party thereto

Exhibit 10.1 EXECUTION VERSION AMENDMENT NO. 1 TO CREDIT AGREEMENT THIS AMENDMENT NO. 1 TO CREDIT AGREEMENT dated as of September 1, 2022 (this ?Amendment?), is among MASTEC, INC., a Florida corporation (the ?Company?), MASTEC NORTH AMERICA, INC., a Florida corporation (together with the Company, collectively, the ?Borrowers?), BANK OF AMERICA, N.A., in its capacities as the Administrative Agent (

September 1, 2022 EX-10.2

Term Loan Agreement, dated as of September 1, 2022, by and among MasTec, Inc. and MasTec North America, Inc. as Borrowers, Bank of America, N.A., as Administrative Agent, and the other lenders party thereto

Exhibit 10.2 Execution Version Published CUSIP Number: 57632EAV7 Published Three-Year Term Loan Facility CUSIP: 57632EAW5 Published Five-Year Term Loan Facility CUSIP: 57632EAX3 TERM LOAN AGREEMENT Dated as of September 1, 2022 among MASTEC, INC. and MASTEC NORTH AMERICA, INC., as Borrowers, BANK OF AMERICA, N.A., as Administrative Agent, and THE OTHER LENDERS PARTY HERETO BOFA SECURITIES, INC., J

September 1, 2022 8-K

Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 1, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

September 1, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 1, 2022 MASTEC, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 1, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

August 29, 2022 EX-FILING FEES

Calculation of Registration Fee.

EX-FILING FEES 7 d338793dexfilingfees.htm EX-FILING FEES Exhibit 107 Form S-4 (Form Type) MasTec, Inc. (Exact Name of Registrant as Specified in its Charter) Calculation of Filing Fee Tables Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offe

August 29, 2022 S-4

Agreement and Plan of Merger, dated as of July 24, 2022, among Infrastructure and Energy Alternatives, Inc., MasTec, Inc. and Indigo Acquisition I Corp. (incorporated by reference to Annex A to MasTec, Inc.’s registration statement on Form S-4, filed with the SEC on August 26, 2022).

Table of Contents As filed with the Securities and Exchange Commission on August 26, 2022 Registration No.

August 29, 2022 EX-99.1

Form of Proxy Card to be used by holders of shares of common stock of Infrastructure and Energy Alternatives, Inc.

Exhibit 99.1 INFRASTRUCTURE AND ENERGY ALTERNATIVES, INC. 6325 DIGITAL WAY SUITE 460 INDIANAPOLIS, INDIANA 46278 VOTE BY INTERNET Before The Meeting?Go to www.proxyvote.com or scan the QR Barcode above Use the Internet to transmit your voting instructions and for electronic delivery of information. Vote by 11:59 p.m. Eastern Time on [TBD], 2022. Have your proxy card in hand when you access the web

August 29, 2022 EX-99.2

Consent of Lazard Frères & Co. LLC.

Exhibit 99.2 The Board of Directors Infrastructure and Energy Alternatives, Inc. 6325 Digital Way, Suite 460 Indianapolis, Indiana 46278 The Board of Directors: We hereby consent to the inclusion of our opinion letter, dated July 24, 2022, to the Board of Directors of Infrastructure and Energy Alternatives, Inc. (?IEA?) as Annex E to, and reference thereto under the headings ?SUMMARY ? Opinion of

August 25, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 25, 2022 MASTEC, INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 25, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number

August 25, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 25, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number

August 25, 2022 EX-99.1

MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation Coral Gables, FL (August 25, 2022) ? MasTec, Inc. (NYSE: MTZ) (the ?Company?) today announced its amend

August 22, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 22, 2022 MASTEC, INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 22, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number

August 22, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 22, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number

August 22, 2022 EX-99.1

MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec, Inc. Announces Amendment of Exchange Offer and Consent Solicitation Coral Gables, FL (August 22, 2022) ? MasTec, Inc. (NYSE: MTZ) (the ?Company?) today announced its amend

August 10, 2022 425

Filed by MasTec, Inc.

Filed by MasTec, Inc. pursuant to Rule 425 under the Securities Act of 1933 Subject company: Infrastructure and Energy Alternatives, Inc. Commission File No. 001-37796 Company: MasTec, Inc. Conference Title: 8th Annual Cowen Communications Infrastructure Summit Moderator: Marc Bianchi Date: Tuesday, 9th August 2022 Conference time: Approximately 10:45 Speaker 1 - Marc Bianchi From MasTec, we have

August 8, 2022 425

Filed by MasTec, Inc.

Filed by MasTec, Inc. pursuant to Rule 425 under the Securities Act of 1933 Subject company: Infrastructure and Energy Alternatives, Inc. Commission File No. 001-37796 Company: MasTec, Inc. Conference Title: MasTec, Inc. (MTZ) Q2 2022 Earnings Call Moderator: Marc Lewis Date: Friday, 5th August 2022 Conference time: 09:00 Operator: Good morning, and welcome to MasTec?s Second Quarter 2022 Earnings

August 8, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2022 MASTEC, INC. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

August 8, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

August 8, 2022 EX-99.1

MasTec, Inc. Announces Commencement of Exchange Offer and Consent Solicitation

Exhibit 99.1 MasTec, Inc. Announces Commencement of Exchange Offer and Consent Solicitation Coral Gables, FL, August 8, 2022 - MasTec, Inc. (NYSE: MTZ) (the ?Company?) announced its commencement of a private exchange offer to certain Eligible Holders (as defined herein) (the ?Exchange Offer?) for any and all outstanding 6.625% Senior Notes due August 15, 2029 (the ?IEA Existing Notes?) issued by I

August 5, 2022 425

MasTec Announces Second Quarter 2022 Financial Results Confirming Annual 2022 Guidance with Record Backlog

Filed by MasTec, Inc. pursuant to Rule 425 under the Securities Act of 1933 Subject company: Infrastructure and Energy Alternatives, Inc. Commission File No. 001-37796 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec Announces Second

August 5, 2022 EX-99.1

MasTec Announces Second Quarter 2022 Financial Results Confirming Annual 2022 Guidance with Record Backlog

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec Announces Second Quarter 2022 Financial Results Confirming Annual 2022 Guidance with Record Backlog ? Second Quarter 2022 Revenue Increased Approximately 17% to $2.3 Billio

August 5, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

August 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, Inc

August 4, 2022 EX-95.1

Mine Safety Disclosure.

EX-95.1 6 mtz6302210-qex951.htm EX-95.1 Exhibit 95.1 MINE SAFETY DISCLOSURES One of our acquired businesses operates aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety an

July 27, 2022 425

1

425 1 d364895d425.htm 425 Filed by MasTec, Inc. pursuant to Rule 425 under the Securities Act of 1933 Subject company: Infrastructure and Energy Alternatives, Inc. Commission File No. 001-37796 Company: MasTec, Inc. Conference Title: Infrastructure & Energy Alternative acquisition conference call Moderator: Marc Lewis Date: Monday, 25th July 2022 Conference Time: 08:30 (UTC-05:00) Operator: Good d

July 26, 2022 425

1

Filed by MasTec, Inc. pursuant to Rule 425 under the Securities Act of 1933 Subject company: Infrastructure and Energy Alternatives, Inc. Commission File No. 001-37796 Company: MasTec, Inc. Conference Title: Infrastructure & Energy Alternative acquisition conference call Moderator: Marc Lewis Date: Monday, 25th July 2022 Conference Time: 08:30 (UTC-05:00) Operator: Good day, everyone. Welcome to M

July 25, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 24, 2022 MASTEC, INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 24, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.R

July 25, 2022 EX-99.1

MasTec to Acquire Infrastructure and Energy Alternatives, Inc. (“IEA”), a Premier Renewable Energy and Infrastructure Services Provider

Exhibit 99.1 Contact: 800 S. Douglas Road, 12th Floor J. Marc Lewis, Vice President-Investor Relations Coral Gables, Florida 33134 (305) 406-1815 Tel: 305-599-1800 [email protected] www.MasTec.com Aaron Reddington, CFA, VP of Investor Relations and Corporate Development (765) 828-2653 [email protected] For Immediate Release MasTec to Acquire Infrastructure and Energy Alternatives, Inc. (?IEA?)

July 25, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 24, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.R

July 25, 2022 425

Strategic Acquisition of Infrastructure and Energy Alternatives, Inc. (“IEA”) July 25, 2022 Filed by MasTec, Inc. pursuant to Rule 425 under the Securities Act of 1933 Subject company: Infrastructure and Energy Alternatives, Inc. Commission File No.

Strategic Acquisition of Infrastructure and Energy Alternatives, Inc. (?IEA?) July 25, 2022 Filed by MasTec, Inc. pursuant to Rule 425 under the Securities Act of 1933 Subject company: Infrastructure and Energy Alternatives, Inc. Commission File No. 001-37796 IEA Acquisition Strategic Benefits Expands MasTec?s presence in the attractive Renewable Power Generation market Adds Renewable Power capabi

June 24, 2022 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 11-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 A.

May 27, 2022 EX-FILING FEES

CALCULATION OF FILING FEE TABLE (Form Type) MASTEC, INC. (Exact name of registrant as specified in its charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Reg

EX-FILING FEES 2 d324155dexfilingfees.htm EX-FILING FEES Exhibit 107 CALCULATION OF FILING FEE TABLE 424(b)(7) (Form Type) MASTEC, INC. (Exact name of registrant as specified in its charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Off

May 27, 2022 424B7

Amended Prospectus Supplement dated May 27, 2022 Amending the Prospectus Supplement Dated January 21, 2022

Table of Contents Filed pursuant to Rule 424(b)(7) Registration No. 333-235597 Amended Prospectus Supplement dated May 27, 2022 Amending the Prospectus Supplement Dated January 21, 2022 AMENDED PROSPECTUS SUPPLEMENT (To prospectus dated December 19, 2019) 2,108,389 Shares* MasTec, Inc. Common Stock The shares of common stock described in this amended prospectus supplement (this ?prospectus supplem

May 27, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 27, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

May 23, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

May 6, 2022 EX-99.1

MasTec Announces First Quarter 2022 Financial Results with Record Backlog and Updates Guidance for the Year

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec Announces First Quarter 2022 Financial Results with Record Backlog and Updates Guidance for the Year ? First Quarter 2022 Results Include GAAP Net Loss of $35.0 Million, Ad

May 6, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

May 5, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, In

May 5, 2022 EX-95.1

Mine Safety Disclosure.

Exhibit 95.1 MINE SAFETY DISCLOSURES One of our acquired businesses operates aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (?MSHA?) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. ? 801 et seq. (the ?Mine Act?). Set forth below is the required information regarding certain mining safety and health matters for the quarter ended M

May 5, 2022 EX-10.1

Amendment to the MasTec, Inc. Amended and Restated Bargaining Units ESPP

EX-10.1 2 mtz3312210-qex101.htm EX-10.1 Exhibit 10.1 AMENDMENT TO THE MASTEC, INC. AMENDED AND RESTATED BARGAINING UNITS ESPP WHEREAS, MasTec, Inc. (the “Company”) maintains the MasTec, Inc. Amended and Restated Bargaining Units ESPP (the “Plan”), established effective as of July 1, 2013, and as most recently amended and restated effective January 1, 2021; and WHEREAS, capitalized terms used herei

May 5, 2022 EX-10.2

Amendment to the MasTec, Inc. Amended and Restated 2011 Employee Stock Purchase Plan

Exhibit 10.2 AMENDMENT TO THE MASTEC, INC. AMENDED AND RESTATED 2011 EMPLOYEE STOCK PURCHASE PLAN WHEREAS, MasTec, Inc. (the ?Company?) maintains the MasTec, Inc. Amended and Restated 2011 Employee Stock Purchase Plan (the ?Plan?), established effective as of July 1, 2011, and as most recently amended and restated effective January 1, 2021; and WHEREAS, capitalized terms used herein and not herein

April 6, 2022 DEF 14A

Definitive Proxy Statement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

April 6, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

March 30, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 25, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

March 30, 2022 EX-99.1

MasTec Announces the Appointment of Ava L. Parker to its Board of Directors

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 305-406-1886 fax [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 Fax: 305-406-1960 www.mastec.com For Immediate Release MasTec Announces the Appointment of Ava L. Parker to its Board of Directors Coral Gables, FL (March 30, 2022) ? MasTec, Inc. (NYSE: MTZ) today a

March 1, 2022 EX-21

Subsidiaries of MasTec, Inc

Exhibit 21 MasTec, Inc. SUBSIDIARIES OF MASTEC, INC. December 31, 2021 NORTH AMERICA A-1 Excavating, LLC (WI) (100% owned by MasTec North America, Inc.) Cash Construction Company, Inc. (TX) (100% owned by MasTec North America, Inc.) Decisive Communications, Inc. (MD) (100% owned by MasTec North America, Inc.) EC Source Services, LLC (FL) (100% owned by MasTec, Inc.) FNF Construction, Inc. (AZ) (10

March 1, 2022 EX-10.7

Credit Agreement, dated as of November 1, 2021, by and among MasTec, Inc. and MasTec North America, Inc. as Borrowers, Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, and the other lenders party thereto

EX-10.7 2 mtz12312110-kex107.htm EX-10.7 Exhibit 10.7 Execution Version published CUSIP Number: 57632EAR6 Published Committed (USD) Facility CUSIP Number: 57632EAT2 Published Committed (MC) Facility CUSIP Number: 57632EAS4 Published Term Loan Facility CUSIP Number: 57632EAU9 Florida documentary stamp tax required by law in the amount of $2,450 has been paid or will be paid directly to the Departme

March 1, 2022 EX-10.8

Subsidiary Guaranty Agreement, dated as of November 1, 2021, by and among the Guarantors party thereto and Bank of America, N.A., as Administrative Agent.

Exhibit 10.8 Execution Version SUBSIDIARY GUARANTY AGREEMENT THIS SUBSIDIARY GUARANTY AGREEMENT dated as of November 1, 2021 (this ?Subsidiary Guaranty Agreement?), is being entered into among EACH OF THE UNDERSIGNED AND EACH OTHER PERSON WHO SHALL BECOME A PARTY HERETO BY EXECUTION OF A SUBSIDIARY GUARANTY JOINDER AGREEMENT (each a ?Subsidiary Guarantor? and collectively the ?Subsidiary Guarantor

March 1, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, Inc. (E

February 25, 2022 EX-99.1

MasTec Announces Fourth Quarter and Annual 2021 Financial Results

EX-99.1 2 d269478dex991.htm EX-99.1 Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 www.mastec.com For Immediate Release MasTec Announces Fourth Quarter and Annual 2021 Financial Results • Fourth Quarter 2021 Results Include GAAP Net Income of $76.4 Million, Adjus

February 25, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 24, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

February 11, 2022 SC 13G/A

MTZ / MasTec, Inc. / MACQUARIE GROUP LTD - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Mastec Inc. (Name of Issuer) Common Shares (Title of Class of Securities) 576323109 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule i

February 10, 2022 SC 13G/A

MTZ / MasTec, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: MasTec Inc. Title of Class of Securities: Common Stock CUSIP Number: 576323109 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule 13

January 21, 2022 424B7

CALCULATION OF REGISTRATION FEE Title of each class of Securities to be Registered Amount to be Registered(1) Proposed Maximum Offering Price Per Share(2) Proposed Maximum Aggregate Offering Price(2) Amount of Registration Fee(3) Common stock, par va

Table of Contents Filed pursuant to Rule 424(b)(7) Registration No. 333-235597 CALCULATION OF REGISTRATION FEE Title of each class of Securities to be Registered Amount to be Registered(1) Proposed Maximum Offering Price Per Share(2) Proposed Maximum Aggregate Offering Price(2) Amount of Registration Fee(3) Common stock, par value $0.10 per share 1,975,232 Shares $92.805 $183,311,405.76 $16,992.97

January 21, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 21, 2022 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

December 21, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 20, 2021 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

November 4, 2021 EX-99.1

MasTec Announces Strong Third Quarter 2021 Earnings Results and Updates Annual Guidance

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 305-406-1886 fax [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 Fax: 305-406-1960 www.mastec.com For Immediate Release MasTec Announces Strong Third Quarter 2021 Earnings Results and Updates Annual Guidance ? Record Third Quarter 2021 Revenue of Approximately $2.

November 4, 2021 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 4, 2021 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or other jurisdiction of incorporation) (Commission File Numbe

November 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec

September 10, 2021 SC 13G/A

AVCT / American Virtual Cloud Technologies Inc / MASTEC INC - SC 13G/A Passive Investment

SC 13G/A 1 d334143dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1**)* American Virtual Cloud Technologies, Inc. (Name of Issuer) Common Stock, Par Value $.0001 Per Share (Title of Class of Securities) 70957E105 (CUSIP Number) September 8, 2021 (Date of Event which Requires Filing of

August 6, 2021 EX-99.1

MasTec Announces Second Quarter 2021 Results with Record Backlog and Updates Annual Guidance

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 305-406-1886 fax [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 Fax: 305-406-1960 www.mastec.com For Immediate Release MasTec Announces Second Quarter 2021 Results with Record Backlog and Updates Annual Guidance ? Second Quarter 2021 Results Include GAAP Net Inco

August 6, 2021 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2021 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

August 5, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, Inc

June 25, 2021 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 11-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 A.

June 8, 2021 S-8

As filed with the Securities and Exchange Commission on June 8, 2021

As filed with the Securities and Exchange Commission on June 8, 2021 Registration No.

May 21, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2021 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

May 13, 2021 DEFA14A

MasTec, Inc. Amended and Restated 2013 Incentive Compensation Plan

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

May 7, 2021 EX-99.1

MasTec Announces Record First Quarter 2021 Results and Increased Annual Guidance

Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 305-406-1886 fax [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 Fax: 305-406-1960 www.mastec.com For Immediate Release MasTec Announces Record First Quarter 2021 Results and Increased Annual Guidance ? First Quarter 2021 Results Include GAAP Net Income of $66.1 M

May 7, 2021 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2021 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

May 6, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, In

April 7, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

April 7, 2021 DEF 14A

Definitive Proxy Statement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

February 26, 2021 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 25, 2021 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numb

February 26, 2021 EX-99.1

MasTec Announces Strong Fourth Quarter and Annual 2020 Financial Results

EX-99.1 Exhibit 99.1 Contact: 800 S. Douglas Road, 12th Floor J. Marc Lewis, Vice President-Investor Relations Coral Gables, Florida 33134 305-406-1815 Tel: 305-599-1800 305-406-1886 fax Fax: 305-406-1960 [email protected] www.mastec.com For Immediate Release MasTec Announces Strong Fourth Quarter and Annual 2020 Financial Results • Fourth Quarter 2020 Results Include GAAP Net Income of $112.9

February 25, 2021 EX-10.3

MasTec, Inc. Amended and Restated Deferred Compensation Plan

Exhibit 10.3 MASTEC, INC. DEFERRED COMPENSATION PLAN Amended and Restated Effective January 1, 2020 TABLE OF CONTENTS Page Article 1. Definitions 1 Article 2. Selection, Enrollment, Eligibility 6 Article 3. Deferral Elections 6 Article 4. Short-Term Payout; In-Service Distributions; Unforeseeable Emergencies 12 Article 5. Benefits 15 Article 6 .Beneficiary Designation 17 Article 7. Leave of Absenc

February 25, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, Inc. (E

February 25, 2021 EX-10.5

MasTec, Inc. Amended and Restated 2011 Employee Stock Purchase Plan

Exhibit 10.5 MASTEC, INC. AMENDED AND RESTATED 2011 EMPLOYEE STOCK PURCHASE PLAN MASTEC, INC. AMENDED AND RESTATED 2011 EMPLOYEE STOCK PURCHASE PLAN 1.Purpose. The purpose of the Plan is to provide incentive for present and future employees of the Company and any Designated Subsidiary to acquire a proprietary interest (or increase an existing proprietary interest) in the Company through the purcha

February 25, 2021 EX-10.12

MasTec, Inc. Amended and Restated Bargaining Units ESPP

Exhibit 10.12 MASTEC, INC. AMENDED AND RESTATED BARGAINING UNITS ESPP MASTEC, INC. AMENDED AND RESTATED BARGAINING UNITS ESPP 1.Purpose. The purpose of the Plan is to provide incentive for present and future employees of any Designated Subsidiary to acquire a proprietary interest (or increase an existing proprietary interest) in the Company through the purchase of Common Stock. It is the Company?s

February 25, 2021 EX-21

Subsidiaries of MasTec, Inc

Exhibit 21 MasTec, Inc. SUBSIDIARIES OF MASTEC, INC. December 31, 2020 NORTH AMERICA Cash Construction Company, Inc. (TX) (100% owned by MasTec North America, Inc.) EC Source Services, LLC (FL) (100% owned by MasTec, Inc.) MasTec Canada, Inc. (Canada) (100% owned by Pacer Construction Holdings Corporation (Canada)) (100% owned by MasTec Canadian Holdco ULC (Canada)) (100% owned by MasTec Cooperate

February 12, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Mastec Inc. (Name of Issuer) Common Shares (Title of Class of Securities) (CUSIP Number) December 31, 20

SC 13G/A 1 d106247dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Mastec Inc. (Name of Issuer) Common Shares (Title of Class of Securities) 576323109 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)* Name of issuer: MasTec Inc. Title of Class of Securities: Common Stock CUSIP Number: 576323109 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13

October 30, 2020 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2020 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

October 30, 2020 EX-99.1

MasTec Announces Strong Third Quarter 2020 Earnings Results

EX-99.1 Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 305-406-1886 fax [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 Fax: 305-406-1960 www.mastec.com For Immediate Release MasTec Announces Strong Third Quarter 2020 Earnings Results • Third Quarter 2020 Results Include GAAP Net Income of $116.9 Million, Adju

October 29, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec

August 4, 2020 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2020 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

August 4, 2020 EX-4.2

Indenture, dated August 4, 2020, by and among the Company, certain of the Company’s subsidiaries and U.S. Bank National Association, as trustee

EX-4.2 Exhibit 4.2 EXECUTION VERSION MASTEC, INC. TO U.S. BANK NATIONAL ASSOCIATION, As Trustee GUARANTEED TO THE EXTENT SET FORTH HEREIN BY THE GUARANTORS NAMED HEREIN INDENTURE Dated as of August 4, 2020 4.50% SENIOR NOTES DUE 2028 TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.01 Definitions 1 Section 1.02 Other Definitions 23 Section 1.03 Rules of Const

July 31, 2020 EX-99.1

MasTec Announces Better Than Expected Second Quarter 2020 Results and Record Second Quarter Backlog

EX-99.1 Exhibit 99.1 Contact: J. Marc Lewis, Vice President-Investor Relations 305-406-1815 305-406-1886 fax [email protected] 800 S. Douglas Road, 12th Floor Coral Gables, Florida 33134 Tel: 305-599-1800 Fax: 305-406-1960 www.mastec.com For Immediate Release MasTec Announces Better Than Expected Second Quarter 2020 Results and Record Second Quarter Backlog • Second Quarter 2020 Results includ

July 31, 2020 EX-10.1

Form of Executive Restricted Stock Agreement for the MasTec, Inc. Amended and Restated 2013 Incentive Compensation Plan

EX-10.1 2 mtz6302010-qex101.htm EXHIBIT 10.1 Exhibit 10.1 MASTEC, INC. RESTRICTED STOCK AGREEMENT 1. Award of Shares. MasTec, Inc. (the “Company”) has awarded to the “Recipient” designated below, the “Award” generally described in the Notice of Restricted Stock Award (the “Notice”), which is hereby incorporated by reference, subject to the terms and conditions of the Company’s Amended and Restated

July 31, 2020 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2020 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

July 31, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, Inc

July 31, 2020 EX-10.2

Form of Executive (Jorge Mas) Restricted Stock Agreement for the MasTec, Inc. Amended and Restated 2013 Incentive Compensation Plan

Exhibit 10.2 MASTEC, INC. RESTRICTED STOCK AGREEMENT 1. Award of Shares. MasTec, Inc. (the “Company”) has awarded to the “Recipient” designated below, the “Award” generally described in the Notice of Restricted Stock Award (the “Notice”), which is hereby incorporated by reference, subject to the terms and conditions of the Company’s Amended and Restated 2013 Incentive Compensation Plan (“Plan”). T

July 31, 2020 EX-22.1

List of Guarantor Subsidiaries.

Exhibit 22.1 List of Guarantor Subsidiaries As of June 30, 2020, the following subsidiaries of MasTec, Inc. (the “Company”) were guarantors of the Company’s 4.875% senior notes due March 15, 2023: Entity Jurisdiction of Formation Cash Construction Company, Inc. Texas Church & Tower, Inc. Florida EC Source Services, LLC Florida Energy Environmental Group, Inc. Nevada Energy Erectors, Inc. Florida G

July 22, 2020 EX-99.1

MasTec Announces Upsize and Pricing of its Senior Unsecured Notes Offering to Refinance Existing $400 Million Senior Notes Due 2023

EX-99.1 Exhibit 99.1 MasTec Announces Upsize and Pricing of its Senior Unsecured Notes Offering to Refinance Existing $400 Million Senior Notes Due 2023 CORAL GABLES, Fla., July 21, 2020 /PRNewswire/ — MasTec, Inc. (the “Company”) (NYSE: MTZ) today announced that it has upsized and priced a private offering (the “Offering”) of $600 million aggregate principal amount of unsecured notes (the “Notes”

July 22, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 21, 2020 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

July 20, 2020 EX-99.1

MasTec Announces Proposed Private Offering of $400 Million of Senior Unsecured Notes Due 2028 to Refinance Existing $400 Million Senior Notes Due 2023

EX-99.1 Exhibit 99.1 MasTec Announces Proposed Private Offering of $400 Million of Senior Unsecured Notes Due 2028 to Refinance Existing $400 Million Senior Notes Due 2023 CORAL GABLES, Fla., July 20, 2020 /PRNewswire/ — MasTec, Inc. (the “Company”) (NYSE: MTZ) today announced that it intends to commence a private offering of $400 million aggregate principal amount of senior unsecured notes due 20

July 20, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2020 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

June 29, 2020 11-K

- 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 11-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 A.

May 18, 2020 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2020 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

May 4, 2020 DEFA14A

- DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ De

May 1, 2020 EX-99.1

MasTec Announces Better than Expected First Quarter 2020 Results and Updated Annual Guidance Incorporating Potential COVID-19 Pandemic Impacts

EX-99.1 Exhibit 99.1 Contact: 800 S. Douglas Road, 12th Floor J. Marc Lewis, Vice President-Investor Relations Coral Gables, Florida 33134 305-406-1815 Tel: 305-599-1800 305-406-1886 fax Fax: 305-406-1960 [email protected] www.mastec.com For Immediate Release MasTec Announces Better than Expected First Quarter 2020 Results and Updated Annual Guidance Incorporating Potential COVID-19 Pandemic I

May 1, 2020 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2020 MASTEC, INC. (Exact Name of Registrant as Specified in Its Charter) Florida 001-08106 65-0829355 (State or Other Jurisdiction of Incorporation) (Commission File Number)

April 30, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-08106 MasTec, In

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