MTZ

SEC source: 0001209191-20-020700 · doc4.xml · nonDerivative · entry 1

MAS JORGE · CIK 0000920559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 296,009

SEC source: 0001209191-20-020695 · doc4.xml · nonDerivative · entry 1

de Cardenas Alberto · CIK 0001250037 · EVP, General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,798

SEC source: 0001209191-20-020692 · doc4.xml · nonDerivative · entry 1

Apple Robert E · CIK 0001382697 · COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 221,316

SEC source: 0001209191-20-020684 · doc4.xml · nonDerivative · entry 1

Pita George · CIK 0001293639 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 203,703

SEC source: 0001209191-20-010680 · doc4.xml · nonDerivative · entry 1

Campbell C Robert · CIK 0001307261 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,242

SEC source: 0001209191-20-010671 · doc4.xml · nonDerivative · entry 2

Palomarez Javier Alberto · CIK 0001662017 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,526

F1 · shares: Shares disposed of represent shares withheld by the Issuer to pay taxes due upon vesting of restricted stock.

SEC source: 0001209191-20-010671 · doc4.xml · nonDerivative · entry 1

Palomarez Javier Alberto · CIK 0001662017 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,643

SEC source: 0001209191-20-010665 · doc4.xml · nonDerivative · entry 1

SORZANO JOSE S · CIK 0001221439 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,614

F1 · balance_after: Includes shares of MasTec common stock contributed by the reporting person to The Sorzano Family Trust of which the reporting person and his wife are trustees and beneficiaries.

SEC source: 0001209191-20-010652 · doc4.xml · nonDerivative · entry 1

JOHNSON JULIA L · CIK 0001221442 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,996

SEC source: 0001209191-20-010640 · doc4.xml · nonDerivative · entry 2

Dwyer Robert J · CIK 0001307141 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,194

F1 · shares: Shares disposed of represent shares withheld by the Issuer to pay taxes due upon vesting of restricted stock.

SEC source: 0001209191-20-010640 · doc4.xml · nonDerivative · entry 1

Dwyer Robert J · CIK 0001307141 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,311

SEC source: 0001209191-20-010634 · doc4.xml · nonDerivative · entry 2

Csiszar Ernst N · CIK 0001341639 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,226

F1 · shares: Shares disposed of represent shares withheld by the Issuer to pay taxes due upon vesting of restricted stock.

SEC source: 0001209191-20-010634 · doc4.xml · nonDerivative · entry 1

Csiszar Ernst N · CIK 0001341639 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,343

SEC source: 0001209191-20-004845 · doc4.xml · nonDerivative · entry 1

MAS JOSE RAMON · CIK 0001079760 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,990,937

F1 · shares: Represents shares donated to a charitable organization.

SEC source: 0000899243-19-027617 · doc4.xml · derivative · entry 1

MAS JORGE · CIK 0000920559 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,500,000

Underlying: Common Stock · 2,500,000 shares

Expires not disclosed

F1 · derivative.exercise_price: On November 19, 2019, Jorge Mas Holdings I, LLC, a Florida limited liability company ("JM Holdings I"), which is controlled by Jorge Mas Holdings, LLC, a Florida limited liability company, of which the reporting person is the sole member, entered into a prepaid variable forward sale contract with an unaffiliated third party buyer. JM Holdings I pledged an aggregate of 2,500,000 shares (the "Pledged Shares") of MasTec, Inc. common stock to secure its obligations under the contract, and retained ownership and voting rights in the Pledged Shares during the term of the pledge. The contract obligates JM Holdings I to deliver to the buyer, on the applicable settlement date for the applicable component (of ten components), at JM Holdings I's option, up to one hundred percent (100%) of the number of Pledged Shares for such component or an equivalent amount of cash.

F2 · derivative.exercise_price: (Continued from Footnote 1) The number of shares of MasTec, Inc. common stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of MasTec, Inc. common stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $61.794 (the "Floor Price"), JM Holdings I will deliver to the buyer all of the Pledged Shares for the applicable component; (b) if such Settlement Price is greater than the Floor Price but less than or equal to $82.804 (the "Cap Price"), JM Holdings I will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F3 · derivative.exercise_price: (Continued from Footnote 2) (c) if such Settlement Price is greater than the Cap Price, JM Holdings I will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F4 · derivative.exercise_price: In connection with JM Holdings I's entry into the forward contract described in Footnote (1), JM Holdings I was entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $145,892,632.06. Such amount was determined based on the market value of MasTec, Inc. common stock on November 19, 2019.

F1 · kind: On November 19, 2019, Jorge Mas Holdings I, LLC, a Florida limited liability company ("JM Holdings I"), which is controlled by Jorge Mas Holdings, LLC, a Florida limited liability company, of which the reporting person is the sole member, entered into a prepaid variable forward sale contract with an unaffiliated third party buyer. JM Holdings I pledged an aggregate of 2,500,000 shares (the "Pledged Shares") of MasTec, Inc. common stock to secure its obligations under the contract, and retained ownership and voting rights in the Pledged Shares during the term of the pledge. The contract obligates JM Holdings I to deliver to the buyer, on the applicable settlement date for the applicable component (of ten components), at JM Holdings I's option, up to one hundred percent (100%) of the number of Pledged Shares for such component or an equivalent amount of cash.

F2 · kind: (Continued from Footnote 1) The number of shares of MasTec, Inc. common stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of MasTec, Inc. common stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $61.794 (the "Floor Price"), JM Holdings I will deliver to the buyer all of the Pledged Shares for the applicable component; (b) if such Settlement Price is greater than the Floor Price but less than or equal to $82.804 (the "Cap Price"), JM Holdings I will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F3 · kind: (Continued from Footnote 2) (c) if such Settlement Price is greater than the Cap Price, JM Holdings I will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F4 · kind: In connection with JM Holdings I's entry into the forward contract described in Footnote (1), JM Holdings I was entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $145,892,632.06. Such amount was determined based on the market value of MasTec, Inc. common stock on November 19, 2019.

F1 · price: On November 19, 2019, Jorge Mas Holdings I, LLC, a Florida limited liability company ("JM Holdings I"), which is controlled by Jorge Mas Holdings, LLC, a Florida limited liability company, of which the reporting person is the sole member, entered into a prepaid variable forward sale contract with an unaffiliated third party buyer. JM Holdings I pledged an aggregate of 2,500,000 shares (the "Pledged Shares") of MasTec, Inc. common stock to secure its obligations under the contract, and retained ownership and voting rights in the Pledged Shares during the term of the pledge. The contract obligates JM Holdings I to deliver to the buyer, on the applicable settlement date for the applicable component (of ten components), at JM Holdings I's option, up to one hundred percent (100%) of the number of Pledged Shares for such component or an equivalent amount of cash.

F2 · price: (Continued from Footnote 1) The number of shares of MasTec, Inc. common stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of MasTec, Inc. common stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $61.794 (the "Floor Price"), JM Holdings I will deliver to the buyer all of the Pledged Shares for the applicable component; (b) if such Settlement Price is greater than the Floor Price but less than or equal to $82.804 (the "Cap Price"), JM Holdings I will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F3 · price: (Continued from Footnote 2) (c) if such Settlement Price is greater than the Cap Price, JM Holdings I will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F4 · price: In connection with JM Holdings I's entry into the forward contract described in Footnote (1), JM Holdings I was entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $145,892,632.06. Such amount was determined based on the market value of MasTec, Inc. common stock on November 19, 2019.

F5 · derivative.exercise_date: Each component is exercisable on the same date as it expires, which date for each component, occurs between December 5, 2022 and December 16, 2022.

F5 · derivative.expiration_date: Each component is exercisable on the same date as it expires, which date for each component, occurs between December 5, 2022 and December 16, 2022.

F6 · ownership.nature: Shares owned of record by JM Holdings I.

SEC source: 0000899243-19-027621 · doc4.xml · derivative · entry 6

MAS JOSE RAMON · CIK 0001079760 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 212,500

Underlying: Common Stock · 212,500 shares

Expires not disclosed

F5 · derivative.exercise_price: On November 19, 2019, the reporting person and the Jose Ramon Mas Irrevocable Family Trust, one of the trustees of which is the reporting person's spouse (the "JR Trust"), entered into prepaid variable forward sale contracts with an unaffiliated third party buyer. The reporting person pledged an aggregate of 775,000 shares and the JR Trust pledged an aggregate of 212,500 shares (the "Pledged Shares") of MasTec, Inc. common stock to secure their obligations under the contracts, and retained ownership and voting rights in their respective portions of the Pledged Shares during the term of the pledge.

F6 · derivative.exercise_price: (Continued from Footnote 5) The contracts obligate the reporting person and the JR Trust to deliver to the buyer, on the applicable settlement date for the applicable component (of ten components for each contract), at Jose Mas's or the JR Trust's option, as applicable, up to one hundred percent (100%) of the number of Pledged Shares for such component or an equivalent amount of cash. The number of shares of MasTec, Inc. common stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of MasTec, Inc. common stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $61.794 (the "Floor Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer all of the Pledged Shares for the applicable component;

F7 · derivative.exercise_price: (Continued from Footnote 6) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $82.804 (the "Cap Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F8 · derivative.exercise_price: (Continued from Footnote 7) (c) if such Settlement Price is greater than the Cap Price, the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F9 · derivative.exercise_price: In connection with the reporting person's and the JR Trust's entry into the forward contracts described in Footnote (5), Jose Mas was entitled to receive aggregate net cash payments (amounts receivable by him upon entry into the forward contract) of $45,226,715.94 and the JR Trust was entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $12,400,873.73. Such amounts were determined based on the market value of MasTec, Inc. common stock on November 19, 2019.

F5 · kind: On November 19, 2019, the reporting person and the Jose Ramon Mas Irrevocable Family Trust, one of the trustees of which is the reporting person's spouse (the "JR Trust"), entered into prepaid variable forward sale contracts with an unaffiliated third party buyer. The reporting person pledged an aggregate of 775,000 shares and the JR Trust pledged an aggregate of 212,500 shares (the "Pledged Shares") of MasTec, Inc. common stock to secure their obligations under the contracts, and retained ownership and voting rights in their respective portions of the Pledged Shares during the term of the pledge.

F6 · kind: (Continued from Footnote 5) The contracts obligate the reporting person and the JR Trust to deliver to the buyer, on the applicable settlement date for the applicable component (of ten components for each contract), at Jose Mas's or the JR Trust's option, as applicable, up to one hundred percent (100%) of the number of Pledged Shares for such component or an equivalent amount of cash. The number of shares of MasTec, Inc. common stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of MasTec, Inc. common stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $61.794 (the "Floor Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer all of the Pledged Shares for the applicable component;

F7 · kind: (Continued from Footnote 6) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $82.804 (the "Cap Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F8 · kind: (Continued from Footnote 7) (c) if such Settlement Price is greater than the Cap Price, the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F9 · kind: In connection with the reporting person's and the JR Trust's entry into the forward contracts described in Footnote (5), Jose Mas was entitled to receive aggregate net cash payments (amounts receivable by him upon entry into the forward contract) of $45,226,715.94 and the JR Trust was entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $12,400,873.73. Such amounts were determined based on the market value of MasTec, Inc. common stock on November 19, 2019.

F5 · price: On November 19, 2019, the reporting person and the Jose Ramon Mas Irrevocable Family Trust, one of the trustees of which is the reporting person's spouse (the "JR Trust"), entered into prepaid variable forward sale contracts with an unaffiliated third party buyer. The reporting person pledged an aggregate of 775,000 shares and the JR Trust pledged an aggregate of 212,500 shares (the "Pledged Shares") of MasTec, Inc. common stock to secure their obligations under the contracts, and retained ownership and voting rights in their respective portions of the Pledged Shares during the term of the pledge.

F6 · price: (Continued from Footnote 5) The contracts obligate the reporting person and the JR Trust to deliver to the buyer, on the applicable settlement date for the applicable component (of ten components for each contract), at Jose Mas's or the JR Trust's option, as applicable, up to one hundred percent (100%) of the number of Pledged Shares for such component or an equivalent amount of cash. The number of shares of MasTec, Inc. common stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of MasTec, Inc. common stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $61.794 (the "Floor Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer all of the Pledged Shares for the applicable component;

F7 · price: (Continued from Footnote 6) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $82.804 (the "Cap Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F8 · price: (Continued from Footnote 7) (c) if such Settlement Price is greater than the Cap Price, the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F9 · price: In connection with the reporting person's and the JR Trust's entry into the forward contracts described in Footnote (5), Jose Mas was entitled to receive aggregate net cash payments (amounts receivable by him upon entry into the forward contract) of $45,226,715.94 and the JR Trust was entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $12,400,873.73. Such amounts were determined based on the market value of MasTec, Inc. common stock on November 19, 2019.

F10 · derivative.exercise_date: Each component is exercisable on the same date as it expires, which date for each component, occurs between December 5, 2022 and December 16, 2022.

F10 · derivative.expiration_date: Each component is exercisable on the same date as it expires, which date for each component, occurs between December 5, 2022 and December 16, 2022.

F11 · ownership.nature: Shares held by the JR Trust. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purpose of Section 16 or for any other purpose.

SEC source: 0000899243-19-027621 · doc4.xml · derivative · entry 5

MAS JOSE RAMON · CIK 0001079760 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 775,000

Underlying: Common Stock · 775,000 shares

Expires not disclosed

F5 · derivative.exercise_price: On November 19, 2019, the reporting person and the Jose Ramon Mas Irrevocable Family Trust, one of the trustees of which is the reporting person's spouse (the "JR Trust"), entered into prepaid variable forward sale contracts with an unaffiliated third party buyer. The reporting person pledged an aggregate of 775,000 shares and the JR Trust pledged an aggregate of 212,500 shares (the "Pledged Shares") of MasTec, Inc. common stock to secure their obligations under the contracts, and retained ownership and voting rights in their respective portions of the Pledged Shares during the term of the pledge.

F6 · derivative.exercise_price: (Continued from Footnote 5) The contracts obligate the reporting person and the JR Trust to deliver to the buyer, on the applicable settlement date for the applicable component (of ten components for each contract), at Jose Mas's or the JR Trust's option, as applicable, up to one hundred percent (100%) of the number of Pledged Shares for such component or an equivalent amount of cash. The number of shares of MasTec, Inc. common stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of MasTec, Inc. common stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $61.794 (the "Floor Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer all of the Pledged Shares for the applicable component;

F7 · derivative.exercise_price: (Continued from Footnote 6) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $82.804 (the "Cap Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F8 · derivative.exercise_price: (Continued from Footnote 7) (c) if such Settlement Price is greater than the Cap Price, the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F9 · derivative.exercise_price: In connection with the reporting person's and the JR Trust's entry into the forward contracts described in Footnote (5), Jose Mas was entitled to receive aggregate net cash payments (amounts receivable by him upon entry into the forward contract) of $45,226,715.94 and the JR Trust was entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $12,400,873.73. Such amounts were determined based on the market value of MasTec, Inc. common stock on November 19, 2019.

F5 · kind: On November 19, 2019, the reporting person and the Jose Ramon Mas Irrevocable Family Trust, one of the trustees of which is the reporting person's spouse (the "JR Trust"), entered into prepaid variable forward sale contracts with an unaffiliated third party buyer. The reporting person pledged an aggregate of 775,000 shares and the JR Trust pledged an aggregate of 212,500 shares (the "Pledged Shares") of MasTec, Inc. common stock to secure their obligations under the contracts, and retained ownership and voting rights in their respective portions of the Pledged Shares during the term of the pledge.

F6 · kind: (Continued from Footnote 5) The contracts obligate the reporting person and the JR Trust to deliver to the buyer, on the applicable settlement date for the applicable component (of ten components for each contract), at Jose Mas's or the JR Trust's option, as applicable, up to one hundred percent (100%) of the number of Pledged Shares for such component or an equivalent amount of cash. The number of shares of MasTec, Inc. common stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of MasTec, Inc. common stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $61.794 (the "Floor Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer all of the Pledged Shares for the applicable component;

F7 · kind: (Continued from Footnote 6) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $82.804 (the "Cap Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F8 · kind: (Continued from Footnote 7) (c) if such Settlement Price is greater than the Cap Price, the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F9 · kind: In connection with the reporting person's and the JR Trust's entry into the forward contracts described in Footnote (5), Jose Mas was entitled to receive aggregate net cash payments (amounts receivable by him upon entry into the forward contract) of $45,226,715.94 and the JR Trust was entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $12,400,873.73. Such amounts were determined based on the market value of MasTec, Inc. common stock on November 19, 2019.

F5 · price: On November 19, 2019, the reporting person and the Jose Ramon Mas Irrevocable Family Trust, one of the trustees of which is the reporting person's spouse (the "JR Trust"), entered into prepaid variable forward sale contracts with an unaffiliated third party buyer. The reporting person pledged an aggregate of 775,000 shares and the JR Trust pledged an aggregate of 212,500 shares (the "Pledged Shares") of MasTec, Inc. common stock to secure their obligations under the contracts, and retained ownership and voting rights in their respective portions of the Pledged Shares during the term of the pledge.

F6 · price: (Continued from Footnote 5) The contracts obligate the reporting person and the JR Trust to deliver to the buyer, on the applicable settlement date for the applicable component (of ten components for each contract), at Jose Mas's or the JR Trust's option, as applicable, up to one hundred percent (100%) of the number of Pledged Shares for such component or an equivalent amount of cash. The number of shares of MasTec, Inc. common stock to be delivered to the buyer on the settlement date (or on which to base the amount of cash to be delivered to the buyer on the settlement date) is to be determined as follows: (a) if the volume-weighted average price of MasTec, Inc. common stock on the designated valuation date for the applicable component (each, a "Settlement Price") is less than or equal to $61.794 (the "Floor Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer all of the Pledged Shares for the applicable component;

F7 · price: (Continued from Footnote 6) (b) if such Settlement Price is greater than the Floor Price but less than or equal to $82.804 (the "Cap Price"), the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of the Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is such Settlement Price and

F8 · price: (Continued from Footnote 7) (c) if such Settlement Price is greater than the Cap Price, the reporting person or the JR Trust, as applicable, will deliver to the buyer the number of shares equal to one hundred percent (100%) of Pledged Shares for the applicable component multiplied by a fraction, the numerator of which is the Floor Price plus the excess of such Settlement Price over the Cap Price, and the denominator of which is such Settlement Price.

F9 · price: In connection with the reporting person's and the JR Trust's entry into the forward contracts described in Footnote (5), Jose Mas was entitled to receive aggregate net cash payments (amounts receivable by him upon entry into the forward contract) of $45,226,715.94 and the JR Trust was entitled to receive aggregate net cash payments (amounts receivable by it upon entry into the forward contract) of $12,400,873.73. Such amounts were determined based on the market value of MasTec, Inc. common stock on November 19, 2019.

F10 · derivative.exercise_date: Each component is exercisable on the same date as it expires, which date for each component, occurs between December 5, 2022 and December 16, 2022.

F10 · derivative.expiration_date: Each component is exercisable on the same date as it expires, which date for each component, occurs between December 5, 2022 and December 16, 2022.

SEC source: 0001209191-19-057174 · doc4.xml · nonDerivative · entry 2

Csiszar Ernst N · CIK 0001341639 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,815

F1 · price: Shares disposed of represent shares withheld by the Issuer to pay taxes due upon vesting of restricted stock.

SEC source: 0001209191-19-057174 · doc4.xml · nonDerivative · entry 1

Csiszar Ernst N · CIK 0001341639 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,886

SEC source: 0001209191-19-057209 · doc4.xml · nonDerivative · entry 1

SORZANO JOSE S · CIK 0001221439 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,086

F1 · balance_after: Includes shares of MasTec common stock contributed by the reporting person to The Sorzano Family Trust of which the reporting person and his wife are trustees and beneficiaries.

SEC source: 0001209191-19-057196 · doc4.xml · nonDerivative · entry 2

Palomarez Javier Alberto · CIK 0001662017 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,115

F1 · shares: Shares disposed of represent shares withheld by the Issuer to pay taxes due upon vesting of restricted stock.

SEC source: 0001209191-19-057196 · doc4.xml · nonDerivative · entry 1

Palomarez Javier Alberto · CIK 0001662017 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,200

SEC source: 0001209191-19-057199 · doc4.xml · nonDerivative · entry 1

Campbell C Robert · CIK 0001307261 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,714

SEC source: 0001209191-19-057188 · doc4.xml · nonDerivative · entry 1

JOHNSON JULIA L · CIK 0001221442 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,437

SEC source: 0001209191-19-057183 · doc4.xml · nonDerivative · entry 1

Dwyer Robert J · CIK 0001307141 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,783

SEC source: 0001209191-19-055485 · doc4.xml · nonDerivative · entry 1

Dwyer Robert J · CIK 0001307141 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,461

SEC source: 0001209191-19-049321 · doc4.xml · nonDerivative · entry 1

Csiszar Ernst N · CIK 0001341639 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,564

SEC source: 0001209191-20-039098 · doc4.xml · nonDerivative · entry 1

SORZANO JOSE S · CIK 0001221439 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,578

F1 · balance_after: Includes shares of MasTec common stock contributed by the reporting person to The Sorzano Family Trust of which the reporting person and his wife are trustees and beneficiaries.

SEC source: 0001209191-19-046595 · doc4.xml · nonDerivative · entry 1

Campbell C Robert · CIK 0001307261 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,392

SEC source: 0001209191-19-046586 · doc4.xml · nonDerivative · entry 2

Palomarez Javier Alberto · CIK 0001662017 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,817

F1 · shares: Shares disposed of represent shares withheld by the Issuer to pay taxes due upon vesting of restricted stock.

SEC source: 0001209191-19-046586 · doc4.xml · nonDerivative · entry 1

Palomarez Javier Alberto · CIK 0001662017 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,920

SEC source: 0001209191-19-046578 · doc4.xml · nonDerivative · entry 1

SORZANO JOSE S · CIK 0001221439 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,764

F1 · balance_after: Includes shares of MasTec common stock contributed by the reporting person to The Sorzano Family Trust of which the reporting person and his wife are trustees and beneficiaries.

SEC source: 0001209191-19-046552 · doc4.xml · nonDerivative · entry 2

Csiszar Ernst N · CIK 0001341639 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,564

F1 · shares: Shares disposed of represent shares withheld by the Issuer to pay taxes due upon vesting of restricted stock.

SEC source: 0001209191-19-046552 · doc4.xml · nonDerivative · entry 1

Csiszar Ernst N · CIK 0001341639 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,651

SEC source: 0001209191-19-046564 · doc4.xml · nonDerivative · entry 1

JOHNSON JULIA L · CIK 0001221442 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,115

SEC source: 0001209191-19-046556 · doc4.xml · nonDerivative · entry 1

Dwyer Robert J · CIK 0001307141 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,461

SEC source: 0001209191-19-044998 · doc4.xml · nonDerivative · entry 1

Apple Robert E · CIK 0001382697 · COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 157,143

F1 · shares: Mr. Apple, 69 years old, is systematically reducing his portfolio concentration in MasTec shares through a 10b5-1 plan, which has more than one pricing tranche. These 25,000 shares sold under the plan, represent only 14% of the shares owned by Mr. Apple.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in 28 separate transactions with prices ranging from $60.00 to $60.17 for an average weighted sales price of $60.0541. The reporting person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 · balance_after: Includes 69,015 shares of MasTec common stock contributed by the reporting person to The Apple Family Trust of which the reporting person and his wife are trustees and beneficiaries.

SEC source: 0001209191-19-045000 · doc4.xml · nonDerivative · entry 1

Campbell C Robert · CIK 0001307261 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,001

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in 50 separate transactions with prices ranging from $57.59 to $57.82 for an average weighted sales price of $57.7159. The reporting person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001209191-19-030926 · doc4.xml · nonDerivative · entry 2

Csiszar Ernst N · CIK 0001341639 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,260

F1 · shares: Shares disposed of represent shares withheld by the Issuer to pay taxes due upon vesting of restricted stock.

SEC source: 0001209191-19-030926 · doc4.xml · nonDerivative · entry 1

Csiszar Ernst N · CIK 0001341639 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,367

SEC source: 0001209191-19-030997 · doc4.xml · nonDerivative · entry 1

Campbell C Robert · CIK 0001307261 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,001

SEC source: 0001209191-19-030986 · doc4.xml · nonDerivative · entry 2

Palomarez Javier Alberto · CIK 0001662017 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,454

F1 · shares: Shares disposed of represent shares withheld by the Issuer to pay taxes due upon vesting of restricted stock.

SEC source: 0001209191-19-030986 · doc4.xml · nonDerivative · entry 1

Palomarez Javier Alberto · CIK 0001662017 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,581

SEC source: 0001209191-19-030973 · doc4.xml · nonDerivative · entry 1

SORZANO JOSE S · CIK 0001221439 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,373

F1 · balance_after: Includes shares of MasTec common stock contributed by the reporting person to The Sorzano Family Trust of which the reporting person and his wife are trustees and beneficiaries.

SEC source: 0001209191-19-030963 · doc4.xml · nonDerivative · entry 1

JOHNSON JULIA L · CIK 0001221442 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,724

SEC source: 0001209191-19-030956 · doc4.xml · nonDerivative · entry 1

Dwyer Robert J · CIK 0001307141 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,070

SEC source: 0001209191-19-028954 · doc4.xml · nonDerivative · entry 1

Dwyer Robert J · CIK 0001307141 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,587

SEC source: 0000899243-19-027621 · doc4.xml · nonDerivative · entry 1

MAS JOSE RAMON · CIK 0001079760 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · Indirect

Disclosed balance after: 1,197,414

F1 · shares: Represents shares donated to a charitable organization.

F2 · balance_after: Shares owned of record by Jose Ramon Mas Holdings I, LLC, a Florida limited liability company ("Jose Ramon Mas Holdings"). The sole member of Jose Ramon Mas Holdings is Jose Ramon Mas Holdings, LLC, a Florida limited liability company, which is wholly owned by Mr. Jose Ramon Mas.

SEC source: 0001209191-19-039563 · doc4.xml · nonDerivative · entry 2

de Cardenas Alberto · CIK 0001250037 · EVP, General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,295

F2 · shares: Represents shares escheated on March 21, 2019.

SEC source: 0001209191-19-020018 · doc4.xml · nonDerivative · entry 1

Apple Robert E · CIK 0001382697 · COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 182,143

F1 · balance_after: Includes 66,021 shares of MasTec common stock contributed by the reporting person to The Apple Family Trust of which the reporting person and his wife are trustees and beneficiaries.