TUTOR RONALD N

SEC source: 0000077543-26-000200 · wk-form4_1788382449.xml · nonDerivative · entry 3

TUTOR RONALD N · CIK 0000906134 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ronald N. Tutor 2018 Dynasty Trust

Disclosed balance after: 733,255

F1 · kind: As disclosed in his Schedule 13D/A filed with the SEC on March 3, 2026, Mr. Tutor indicated that he intends to sell some or all of his shares over the next 18 months as part of his overall estate and tax planning as he approaches retirement. Mr. Tutor noted that such sales are solely for personal reasons and he has a high degree of confidence in our business and future based on our leadership, backlog, bidding opportunities, cash position, as well as our outlook for revenue and earnings growth in 2026 and beyond, and expected future operating cash generation.

F3 · price: These shares were sold in a broker-arranged block trade transaction.

SEC source: 0000077543-26-000200 · wk-form4_1788382449.xml · nonDerivative · entry 2

TUTOR RONALD N · CIK 0000906134 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 2,634,967

F1 · kind: As disclosed in his Schedule 13D/A filed with the SEC on March 3, 2026, Mr. Tutor indicated that he intends to sell some or all of his shares over the next 18 months as part of his overall estate and tax planning as he approaches retirement. Mr. Tutor noted that such sales are solely for personal reasons and he has a high degree of confidence in our business and future based on our leadership, backlog, bidding opportunities, cash position, as well as our outlook for revenue and earnings growth in 2026 and beyond, and expected future operating cash generation.

F3 · price: These shares were sold in a broker-arranged block trade transaction.

SEC source: 0000077543-26-000200 · wk-form4_1788382449.xml · nonDerivative · entry 1

TUTOR RONALD N · CIK 0000906134 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ronald N. Tutor Separate Property Trust

Disclosed balance after: 701,477

F1 · kind: As disclosed in his Schedule 13D/A filed with the SEC on March 3, 2026, Mr. Tutor indicated that he intends to sell some or all of his shares over the next 18 months as part of his overall estate and tax planning as he approaches retirement. Mr. Tutor noted that such sales are solely for personal reasons and he has a high degree of confidence in our business and future based on our leadership, backlog, bidding opportunities, cash position, as well as our outlook for revenue and earnings growth in 2026 and beyond, and expected future operating cash generation.

F2 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.67 to $90.01, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-26-000051 · wk-form4_1773443969.xml · derivative · entry 9

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,931

Underlying: Common Stock · 152,932 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: On March 13, 2024, the reporting person was granted 458,795 cash-settled phantom stock units, of which 152,932 vested on each of March 13, 2025 and 2026, and 152,931 vest on December 31, 2026, contingent upon the reporting person's continued employment through each applicable vesting date. The 152,932 phantom stock units that vested on March 13, 2026 were settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

F2 · derivative.exercise_date: On March 13, 2024, the reporting person was granted 458,795 cash-settled phantom stock units, of which 152,932 vested on each of March 13, 2025 and 2026, and 152,931 vest on December 31, 2026, contingent upon the reporting person's continued employment through each applicable vesting date. The 152,932 phantom stock units that vested on March 13, 2026 were settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

F2 · derivative.expiration_date: On March 13, 2024, the reporting person was granted 458,795 cash-settled phantom stock units, of which 152,932 vested on each of March 13, 2025 and 2026, and 152,931 vest on December 31, 2026, contingent upon the reporting person's continued employment through each applicable vesting date. The 152,932 phantom stock units that vested on March 13, 2026 were settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

SEC source: 0000077543-26-000051 · wk-form4_1773443969.xml · nonDerivative · entry 4

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F2 · kind: On March 13, 2024, the reporting person was granted 458,795 cash-settled phantom stock units, of which 152,932 vested on each of March 13, 2025 and 2026, and 152,931 vest on December 31, 2026, contingent upon the reporting person's continued employment through each applicable vesting date. The 152,932 phantom stock units that vested on March 13, 2026 were settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

F2 · price: On March 13, 2024, the reporting person was granted 458,795 cash-settled phantom stock units, of which 152,932 vested on each of March 13, 2025 and 2026, and 152,931 vest on December 31, 2026, contingent upon the reporting person's continued employment through each applicable vesting date. The 152,932 phantom stock units that vested on March 13, 2026 were settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

SEC source: 0000077543-26-000051 · wk-form4_1773443969.xml · nonDerivative · entry 3

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,932

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: On March 13, 2024, the reporting person was granted 458,795 cash-settled phantom stock units, of which 152,932 vested on each of March 13, 2025 and 2026, and 152,931 vest on December 31, 2026, contingent upon the reporting person's continued employment through each applicable vesting date. The 152,932 phantom stock units that vested on March 13, 2026 were settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

SEC source: 0000077543-26-000051 · wk-form4_1773443969.xml · derivative · entry 8

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 155,509 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: On March 12, 2025, the reporting person was granted 155,509 cash-settled phantom stock units that vested on March 12, 2026. These phantom stock units settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

F1 · derivative.exercise_date: On March 12, 2025, the reporting person was granted 155,509 cash-settled phantom stock units that vested on March 12, 2026. These phantom stock units settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

F1 · derivative.expiration_date: On March 12, 2025, the reporting person was granted 155,509 cash-settled phantom stock units that vested on March 12, 2026. These phantom stock units settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

SEC source: 0000077543-26-000051 · wk-form4_1773443969.xml · nonDerivative · entry 2

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · kind: On March 12, 2025, the reporting person was granted 155,509 cash-settled phantom stock units that vested on March 12, 2026. These phantom stock units settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

F1 · price: On March 12, 2025, the reporting person was granted 155,509 cash-settled phantom stock units that vested on March 12, 2026. These phantom stock units settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

SEC source: 0000077543-26-000051 · wk-form4_1773443969.xml · nonDerivative · entry 1

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 155,509

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: On March 12, 2025, the reporting person was granted 155,509 cash-settled phantom stock units that vested on March 12, 2026. These phantom stock units settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition of shares back to the Issuer under SEC reporting principles.

SEC source: 0000077543-26-000051 · wk-form4_1773443969.xml · derivative · entry 10

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,510

Underlying: Common Stock · 58,510 shares

Expires not disclosed

F3 · derivative.exercise_price: On March 11, 2026, the reporting person was granted 58,510 cash-settled phantom stock units that vest on December 31, 2026 contingent upon the reporting person's continued employment through the vesting date. Under the SEC rules, these phantom stock units are considered derivative securities that convert to shares, on a one-for-one basis, and are settled in cash on the vesting date.

F3 · derivative.exercise_date: On March 11, 2026, the reporting person was granted 58,510 cash-settled phantom stock units that vest on December 31, 2026 contingent upon the reporting person's continued employment through the vesting date. Under the SEC rules, these phantom stock units are considered derivative securities that convert to shares, on a one-for-one basis, and are settled in cash on the vesting date.

F3 · derivative.expiration_date: On March 11, 2026, the reporting person was granted 58,510 cash-settled phantom stock units that vest on December 31, 2026 contingent upon the reporting person's continued employment through the vesting date. Under the SEC rules, these phantom stock units are considered derivative securities that convert to shares, on a one-for-one basis, and are settled in cash on the vesting date.

SEC source: 0000077543-26-000046 · wk-form4_1773176866.xml · derivative · entry 8

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 176,730 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The restricted stock units (RSUs) convert into common stock of Tutor Perini Corporation (Issuer) on a 1-for-1 basis.

F1 · derivative.exercise_date: On March 8, 2023, the reporting person was granted 530,188 RSUs, of which 176,729 vested on each of March 8, 2024 and 2025, and 176,730 vested on March 8, 2026. Of the 176,730 RSUs which vested on March 8, 2026, 30,188 RSUs were settled in cash. The reporting person did not purchase or sell any shares of common stock in the settlement of the cash portion of this award, however, the transaction is required to be reported as an acquisition and disposition back to the Issuer under SEC reporting principles.

F1 · derivative.expiration_date: On March 8, 2023, the reporting person was granted 530,188 RSUs, of which 176,729 vested on each of March 8, 2024 and 2025, and 176,730 vested on March 8, 2026. Of the 176,730 RSUs which vested on March 8, 2026, 30,188 RSUs were settled in cash. The reporting person did not purchase or sell any shares of common stock in the settlement of the cash portion of this award, however, the transaction is required to be reported as an acquisition and disposition back to the Issuer under SEC reporting principles.

SEC source: 0000077543-26-000046 · wk-form4_1773176866.xml · nonDerivative · entry 5

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,134,967

SEC source: 0000077543-26-000046 · wk-form4_1773176866.xml · nonDerivative · entry 4

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

SEC source: 0000077543-26-000046 · wk-form4_1773176866.xml · nonDerivative · entry 3

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,982

F1 · acquired: On March 8, 2023, the reporting person was granted 530,188 RSUs, of which 176,729 vested on each of March 8, 2024 and 2025, and 176,730 vested on March 8, 2026. Of the 176,730 RSUs which vested on March 8, 2026, 30,188 RSUs were settled in cash. The reporting person did not purchase or sell any shares of common stock in the settlement of the cash portion of this award, however, the transaction is required to be reported as an acquisition and disposition back to the Issuer under SEC reporting principles.

SEC source: 0000077543-26-000046 · wk-form4_1773176866.xml · nonDerivative · entry 2

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,170

SEC source: 0000077543-26-000046 · wk-form4_1773176866.xml · nonDerivative · entry 1

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 176,730

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: The restricted stock units (RSUs) convert into common stock of Tutor Perini Corporation (Issuer) on a 1-for-1 basis.

F1 · acquired: On March 8, 2023, the reporting person was granted 530,188 RSUs, of which 176,729 vested on each of March 8, 2024 and 2025, and 176,730 vested on March 8, 2026. Of the 176,730 RSUs which vested on March 8, 2026, 30,188 RSUs were settled in cash. The reporting person did not purchase or sell any shares of common stock in the settlement of the cash portion of this award, however, the transaction is required to be reported as an acquisition and disposition back to the Issuer under SEC reporting principles.

SEC source: 0000077543-25-000292 · wk-form4_1766525044.xml · nonDerivative · entry 1

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ronald N. Tutor Separate Property Trust

Disclosed balance after: 711,477

F1 · kind: Reflects the gift of common stock to a charitable donor-advised fund.

SEC source: 0000077543-25-000231 · wk-form4_1758326628.xml · nonDerivative · entry 4

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,062,985

F4 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.49 to $65.35, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000231 · wk-form4_1758326628.xml · nonDerivative · entry 3

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,146,129

F3 · kind: The shares were gifted to a charitable organization for no consideration.

SEC source: 0000077543-25-000231 · wk-form4_1758326628.xml · nonDerivative · entry 2

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,154,129

F2 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.49 to $64.87, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000231 · wk-form4_1758326628.xml · nonDerivative · entry 1

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,193,166

F1 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.50 to $64.48, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000223 · wk-form4_1757116822.xml · nonDerivative · entry 1

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,270,985

F1 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.73 to $59.41, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000220 · wk-form4_1756858051.xml · nonDerivative · entry 1

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,315,297

F1 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.51 to $60.40, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000213 · wk-form4_1756252841.xml · nonDerivative · entry 4

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,395,957

F4 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.00 to $59.26, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000213 · wk-form4_1756252841.xml · nonDerivative · entry 3

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,502,789

F3 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.00 to $59.40, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000213 · wk-form4_1756252841.xml · nonDerivative · entry 2

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ronald N. Tutor Separate Property Trust

Disclosed balance after: 771,477

F2 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.00 to $59.53, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000213 · wk-form4_1756252841.xml · nonDerivative · entry 1

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ronald N. Tutor Separate Property Trust

Disclosed balance after: 791,477

F1 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.33 to $59.16, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000150 · wk-form4_1749681287.xml · nonDerivative · entry 5

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,570,985

F3 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.50 to $40.69, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000150 · wk-form4_1749681287.xml · nonDerivative · entry 4

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,626,463

F2 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.86 to $41.78, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000150 · wk-form4_1749681287.xml · nonDerivative · entry 3

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,701,463

F1 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.50 to $40.59, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000150 · wk-form4_1749681287.xml · nonDerivative · entry 2

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,730,985

SEC source: 0000077543-25-000150 · wk-form4_1749681287.xml · nonDerivative · entry 1

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ronald N. Tutor Separate Property Trust

Disclosed balance after: 871,477

SEC source: 0000077543-25-000147 · wk-form4_1749082673.xml · nonDerivative · entry 10

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,590,985

F5 · kind: The shares were gifted to a charitable organization for no consideration.

SEC source: 0000077543-25-000147 · wk-form4_1749082673.xml · nonDerivative · entry 9

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 4,730,985

F4 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.22 to $39.13, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000147 · wk-form4_1749082673.xml · nonDerivative · entry 8

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ronald N. Tutor Separate Property Trust

Disclosed balance after: 1,011,477

F3 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.07 to $37.83, inclusive. The reporting person undertakes to provide to Tutor Perini Corporation, any security holder of Tutor Perini Corporation, 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 the footnote to this Form 4.

SEC source: 0000077543-25-000041 · wk-form4_1741993526.xml · derivative · entry 6

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 305,863

Underlying: Common Stock · 152,932 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: On March 13, 2024, the reporting person was granted 458,795 cash-settled phantom stock units, of which 152,932 vest on each of March 13, 2025 and 2026, and 152,931 vest on December 31, 2026, contingent upon the reporting person's continued employment through each applicable vesting date. These phantom stock units are considered derivative securities settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the applicable vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition back to the Issuer under SEC reporting principles.

F1 · derivative.exercise_date: On March 13, 2024, the reporting person was granted 458,795 cash-settled phantom stock units, of which 152,932 vest on each of March 13, 2025 and 2026, and 152,931 vest on December 31, 2026, contingent upon the reporting person's continued employment through each applicable vesting date. These phantom stock units are considered derivative securities settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the applicable vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition back to the Issuer under SEC reporting principles.

F1 · derivative.expiration_date: On March 13, 2024, the reporting person was granted 458,795 cash-settled phantom stock units, of which 152,932 vest on each of March 13, 2025 and 2026, and 152,931 vest on December 31, 2026, contingent upon the reporting person's continued employment through each applicable vesting date. These phantom stock units are considered derivative securities settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the applicable vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition back to the Issuer under SEC reporting principles.

SEC source: 0000077543-25-000041 · wk-form4_1741993526.xml · nonDerivative · entry 2

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · kind: On March 13, 2024, the reporting person was granted 458,795 cash-settled phantom stock units, of which 152,932 vest on each of March 13, 2025 and 2026, and 152,931 vest on December 31, 2026, contingent upon the reporting person's continued employment through each applicable vesting date. These phantom stock units are considered derivative securities settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the applicable vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition back to the Issuer under SEC reporting principles.

SEC source: 0000077543-25-000041 · wk-form4_1741993526.xml · nonDerivative · entry 1

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,932

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: On March 13, 2024, the reporting person was granted 458,795 cash-settled phantom stock units, of which 152,932 vest on each of March 13, 2025 and 2026, and 152,931 vest on December 31, 2026, contingent upon the reporting person's continued employment through each applicable vesting date. These phantom stock units are considered derivative securities settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the applicable vesting date. The reporting person did not purchase or sell any shares of common stock in the settlement of this award, however, the transaction is required to be reported as an acquisition and disposition back to the Issuer under SEC reporting principles.

SEC source: 0000077543-25-000041 · wk-form4_1741993526.xml · derivative · entry 7

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 155,509

Underlying: Common Stock · 155,509 shares

Expires not disclosed

F2 · derivative.exercise_price: On March 12, 2025, the reporting person was granted 155,509 cash-settled phantom stock units that vest on March 12, 2026 contingent upon the reporting person's continued employment through the vesting date. These phantom stock units are considered derivative securities settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date.

F2 · derivative.exercise_date: On March 12, 2025, the reporting person was granted 155,509 cash-settled phantom stock units that vest on March 12, 2026 contingent upon the reporting person's continued employment through the vesting date. These phantom stock units are considered derivative securities settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date.

F2 · derivative.expiration_date: On March 12, 2025, the reporting person was granted 155,509 cash-settled phantom stock units that vest on March 12, 2026 contingent upon the reporting person's continued employment through the vesting date. These phantom stock units are considered derivative securities settled in cash at a value equal to the number of units vested multiplied by the closing price per share of common stock of Tutor Perini Corporation (Issuer) on the vesting date.

SEC source: 0000077543-25-000030 · wk-form4_1741728232.xml · derivative · entry 12

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 105,257 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The restricted stock units (RSUs) convert into common stock of Tutor Perini Corporation on a 1-for-1 basis.

F3 · derivative.exercise_date: On March 9, 2022, the reporting person was granted 315,769 RSUs, of which 105,256 vested on each of March 9, 2023 and 2024, and 105,257 vested on March 9, 2025.

F3 · derivative.expiration_date: On March 9, 2022, the reporting person was granted 315,769 RSUs, of which 105,256 vested on each of March 9, 2023 and 2024, and 105,257 vested on March 9, 2025.

SEC source: 0000077543-25-000030 · wk-form4_1741728232.xml · nonDerivative · entry 8

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 3,392,595

SEC source: 0000077543-25-000030 · wk-form4_1741728232.xml · nonDerivative · entry 7

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

SEC source: 0000077543-25-000030 · wk-form4_1741728232.xml · nonDerivative · entry 6

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,808

SEC source: 0000077543-25-000030 · wk-form4_1741728232.xml · nonDerivative · entry 5

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,257

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The restricted stock units (RSUs) convert into common stock of Tutor Perini Corporation on a 1-for-1 basis.

SEC source: 0000077543-25-000030 · wk-form4_1741728232.xml · derivative · entry 11

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 176,730

Underlying: Common Stock · 176,729 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The restricted stock units (RSUs) convert into common stock of Tutor Perini Corporation on a 1-for-1 basis.

F2 · derivative.exercise_date: On March 8, 2023, the reporting person was granted 530,188 RSUs, of which 176,729 vest on each of March 8, 2024 and 2025, and 176,730 vest on March 8, 2026, contingent upon the reporting person's continued employment through these dates.

F2 · derivative.expiration_date: On March 8, 2023, the reporting person was granted 530,188 RSUs, of which 176,729 vest on each of March 8, 2024 and 2025, and 176,730 vest on March 8, 2026, contingent upon the reporting person's continued employment through these dates.

SEC source: 0000077543-25-000030 · wk-form4_1741728232.xml · nonDerivative · entry 4

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 3,340,787

SEC source: 0000077543-25-000030 · wk-form4_1741728232.xml · nonDerivative · entry 3

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

SEC source: 0000077543-25-000030 · wk-form4_1741728232.xml · nonDerivative · entry 2

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,987

SEC source: 0000077543-25-000030 · wk-form4_1741728232.xml · nonDerivative · entry 1

TUTOR RONALD N · CIK 0000906134 · Director · 10% owner · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 176,729

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The restricted stock units (RSUs) convert into common stock of Tutor Perini Corporation on a 1-for-1 basis.

SEC source: 0000077543-24-000273 · wk-form4_1734738067.xml · derivative · entry 7

TUTOR RONALD N · CIK 0000906134 · Director · Chairman & CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Tutor Marital Property Trust

Disclosed balance after: 0

Underlying: Common Stock · 122,193 shares

Expires 2024-12-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.