MLM

SEC source: 0001127602-25-006548 · form4.xml · nonDerivative · entry 1

BAR ROSELYN R · CIK 0001164744 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,333

SEC source: 0001127602-25-005874 · form4.xml · nonDerivative · entry 2

Petro Michael J · CIK 0001878191 · SVP - Strategy and Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,901.6026

SEC source: 0001127602-25-005874 · form4.xml · nonDerivative · entry 1

Petro Michael J · CIK 0001878191 · SVP - Strategy and Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,112.6026

F1 · shares: Represents the settlement of performance share units into common stock that were granted under the Martin Marietta Amended and Restated Stock Based Award Plan on February 18, 2022. The ultimate amount of shares to be received under the grant depended on the achievement of performance goals during a three-year performance period from January 1, 2022, through December 31, 2024. On February 18, 2025, Martin Marietta's Management Development and Compensation Committee certified the attainment of the applicable performance goals and approved the settlement of the PSU grant. The shares underlying the PSUs vested on December 31, 2024.

SEC source: 0001127602-25-005871 · form4.xml · nonDerivative · entry 2

Nye C Howard · CIK 0001373147 · Director · Chairman, Pres & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,649

SEC source: 0001127602-25-005871 · form4.xml · nonDerivative · entry 1

Nye C Howard · CIK 0001373147 · Director · Chairman, Pres & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,147

F1 · shares: Represents the settlement of performance share units into common stock that were granted under the Martin Marietta Amended and Restated Stock Based Award Plan on February 18, 2022. The ultimate amount of shares to be received under the grant depended on the achievement of performance goals during a three-year performance period from January 1, 2022, through December 31, 2024. On February 18, 2025, Martin Marietta's Management Development and Compensation Committee certified the attainment of the applicable performance goals and approved the settlement of the PSU grant. The shares underlying the PSUs vested on December 31, 2024.

SEC source: 0001127602-25-005869 · form4.xml · nonDerivative · entry 2

Nickolas James AJ · CIK 0001715189 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,456

SEC source: 0001127602-25-005869 · form4.xml · nonDerivative · entry 1

Nickolas James AJ · CIK 0001715189 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,562

F1 · shares: Represents the settlement of performance share units into common stock that were granted under the Martin Marietta Amended and Restated Stock Based Award Plan on February 18, 2022. The ultimate amount of shares to be received under the grant depended on the achievement of performance goals during a three-year performance period from January 1, 2022, through December 31, 2024. On February 18, 2025, Martin Marietta's Management Development and Compensation Committee certified the attainment of the applicable performance goals and approved the settlement of the PSU grant. The shares underlying the PSUs vested on December 31, 2024.

SEC source: 0001127602-25-005863 · form4.xml · nonDerivative · entry 2

Cardin Robert J · CIK 0001592427 · Sr. VP, Controller and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,650

SEC source: 0001127602-25-005863 · form4.xml · nonDerivative · entry 1

Cardin Robert J · CIK 0001592427 · Sr. VP, Controller and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,719

F1 · shares: Represents the settlement of performance share units into common stock that were granted under the Martin Marietta Amended and Restated Stock Based Award Plan on February 18, 2022. The ultimate amount of shares to be received under the grant depended on the achievement of performance goals during a three-year performance period from January 1, 2022, through December 31, 2024. On February 18, 2025, Martin Marietta's Management Development and Compensation Committee certified the attainment of the applicable performance goals and approved the settlement of the PSU grant. The shares underlying the PSUs vested on December 31, 2024.

SEC source: 0001127602-25-005856 · form4.xml · nonDerivative · entry 2

Brooks Oliver W · CIK 0001943383 · SVP - Enterprise Excellence

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,622

SEC source: 0001127602-25-005856 · form4.xml · nonDerivative · entry 1

Brooks Oliver W · CIK 0001943383 · SVP - Enterprise Excellence

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,756

F1 · shares: Represents the settlement of performance share units into common stock that were granted under the Martin Marietta Amended and Restated Stock Based Award Plan on February 18, 2022. The ultimate amount of shares to be received under the grant depended on the achievement of performance goals during a three-year performance period from January 1, 2022, through December 31, 2024. On February 18, 2025, Martin Marietta's Management Development and Compensation Committee certified the attainment of the applicable performance goals and approved the settlement of the PSU grant. The shares underlying the PSUs vested on December 31, 2024.

SEC source: 0001127602-25-005852 · form4.xml · nonDerivative · entry 2

BAR ROSELYN R · CIK 0001164744 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,595

SEC source: 0001127602-25-005852 · form4.xml · nonDerivative · entry 1

BAR ROSELYN R · CIK 0001164744 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,721

F1 · shares: Represents the settlement of performance share units into common stock that were granted under the Martin Marietta Amended and Restated Stock Based Award Plan on February 18, 2022. The ultimate amount of shares to be received under the grant depended on the achievement of performance goals during a three-year performance period from January 1, 2022, through December 31, 2024. On February 18, 2025, Martin Marietta's Management Development and Compensation Committee certified the attainment of the applicable performance goals and approved the settlement of the PSU grant. The shares underlying the PSUs vested on December 31, 2024.

SEC source: 0001127602-24-029461 · form4.xml · nonDerivative · entry 1

Nye C Howard · CIK 0001373147 · Director · Chairman, Pres & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,597

SEC source: 0001127602-24-029450 · form4.xml · nonDerivative · entry 2

BAR ROSELYN R · CIK 0001164744 · EVP, General Counsel and Secy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,359

SEC source: 0001127602-24-029450 · form4.xml · nonDerivative · entry 1

BAR ROSELYN R · CIK 0001164744 · EVP, General Counsel and Secy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,424

SEC source: 0001127602-24-028366 · form4.xml · nonDerivative · entry 1

Petro Michael J · CIK 0001878191 · SVP - Strategy and Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,658.6026

SEC source: 0001127602-24-028358 · form4.xml · nonDerivative · entry 1

BAR ROSELYN R · CIK 0001164744 · EVP, General Counsel and Secy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,606

SEC source: 0001127602-24-028364 · form4.xml · nonDerivative · entry 1

Nye C Howard · CIK 0001373147 · Director · Chairman, Pres & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,864

SEC source: 0001127602-24-028335 · form4.xml · nonDerivative · entry 1

WAJSGRAS DAVID C · CIK 0001193800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,013

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-028333 · form4.xml · nonDerivative · entry 1

Pike Thomas · CIK 0001471570 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,011

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-028331 · form4.xml · nonDerivative · entry 1

KORALESKI JOHN J · CIK 0001200010 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,113

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-023329 · form4.xml · nonDerivative · entry 1

WAJSGRAS DAVID C · CIK 0001193800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,950

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-023328 · form4.xml · nonDerivative · entry 1

Pike Thomas · CIK 0001471570 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,958

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-023327 · form4.xml · nonDerivative · entry 1

KORALESKI JOHN J · CIK 0001200010 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,035

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-017478 · form4.xml · nonDerivative · entry 1

WAJSGRAS DAVID C · CIK 0001193800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,879

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-017473 · form4.xml · nonDerivative · entry 1

Pike Thomas · CIK 0001471570 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,899

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-017471 · form4.xml · nonDerivative · entry 1

KORALESKI JOHN J · CIK 0001200010 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,948

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-015866 · form4.xml · nonDerivative · entry 1

WAJSGRAS DAVID C · CIK 0001193800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,813

SEC source: 0001127602-24-015862 · form4.xml · nonDerivative · entry 1

Pike Thomas · CIK 0001471570 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,844

SEC source: 0001127602-24-015865 · form4.xml · nonDerivative · entry 1

SLAGER DONALD W · CIK 0001245142 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,443

SEC source: 0001127602-24-015860 · form4.xml · nonDerivative · entry 1

PEREZ LAREE E · CIK 0001243153 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,147

SEC source: 0001127602-24-015858 · form4.xml · nonDerivative · entry 1

Mack Mary T · CIK 0001689162 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 293

SEC source: 0001127602-24-015855 · form4.xml · nonDerivative · entry 1

KORALESKI JOHN J · CIK 0001200010 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,867

SEC source: 0001127602-24-015849 · form4.xml · nonDerivative · entry 1

Foxx Anthony R · CIK 0001831914 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,994

SEC source: 0001127602-24-015839 · form4.xml · nonDerivative · entry 1

Ables Dorothy M · CIK 0001448781 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,600

SEC source: 0001127602-24-015848 · form4.xml · nonDerivative · entry 1

COLE SUE W · CIK 0001166747 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,086

SEC source: 0001127602-24-014888 · form4.xml · nonDerivative · entry 1

Quillen Michael J · CIK 0001317673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,306

SEC source: 0001127602-24-010211 · form4.xml · nonDerivative · entry 1

BAR ROSELYN R · CIK 0001164744 · EVP, General Counsel and Secy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,970

F1 · shares: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $602.13 to $604.08, inclusive. The Reporting Person undertakes to provide to 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 ranges set forth in footnote (1) to this Form 4.

SEC source: 0001127602-24-009684 · form4.xml · nonDerivative · entry 1

Cardin Robert J · CIK 0001592427 · Sr. VP, Controller and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,554

SEC source: 0001127602-24-008769 · form4.xml · nonDerivative · entry 2

Nye C Howard · CIK 0001373147 · Director · Chairman, Pres & CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By Charles Howard Nye Irrevocable Trust

Disclosed balance after: 70,400

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $600.32 to $606.83, inclusive. The Reporting Person undertakes to provide to 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 ranges set forth in footnote (2) to this Form 4.

SEC source: 0001127602-24-008769 · form4.xml · nonDerivative · entry 1

Nye C Howard · CIK 0001373147 · Director · Chairman, Pres & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,640

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $600.32 to $606.83, inclusive. The Reporting Person undertakes to provide to 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 ranges set forth in footnote (1) to this Form 4.

SEC source: 0001127602-24-007989 · form4.xml · nonDerivative · entry 1

WAJSGRAS DAVID C · CIK 0001193800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,520

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-007988 · form4.xml · nonDerivative · entry 1

Quillen Michael J · CIK 0001317673 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,977

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-007987 · form4.xml · nonDerivative · entry 1

Pike Thomas · CIK 0001471570 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,551

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-007986 · form4.xml · nonDerivative · entry 1

KORALESKI JOHN J · CIK 0001200010 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,574

F1 · shares: Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan.

SEC source: 0001127602-24-007219 · form4.xml · nonDerivative · entry 2

Petro Michael J · CIK 0001878191 · SVP - Strategy and Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,751.6026

SEC source: 0001127602-24-007215 · form4.xml · nonDerivative · entry 3

Nye C Howard · CIK 0001373147 · Director · Chairman, Pres & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 149,640

SEC source: 0001127602-24-007212 · form4.xml · nonDerivative · entry 2

Nickolas James AJ · CIK 0001715189 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,267

SEC source: 0001127602-24-007204 · form4.xml · nonDerivative · entry 2

Cardin Robert J · CIK 0001592427 · Sr. VP, Controller and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,100