MLM

SEC source: 0000916076-26-000088 · form4.xml · nonDerivative · entry 1

Petro Michael J · CIK 0001878191 · SVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,321.6026

F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in three equal installments on the sixth, seventh and eight anniversaries of the award date, subject to continued employment and other terms and conditions specified in the award agreement.

SEC source: 0000916076-26-000086 · form4.xml · nonDerivative · entry 1

WAJSGRAS DAVID C · CIK 0001193800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,106

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: 0000916076-26-000084 · form4.xml · nonDerivative · entry 1

Pike Thomas · CIK 0001471570 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,029

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: 0000916076-26-000082 · form4.xml · nonDerivative · entry 1

LYONS MARTIN J · CIK 0001190099 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 442

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: 0000916076-26-000080 · form4.xml · nonDerivative · entry 1

Niemann Philipp · CIK 0002149732 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 337

SEC source: 0000916076-26-000077 · form4.xml · nonDerivative · entry 1

Petro Michael J · CIK 0001878191 · SVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,990.6026

SEC source: 0000916076-26-000075 · form4.xml · nonDerivative · entry 1

WAJSGRAS DAVID C · CIK 0001193800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,028

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: 0000916076-26-000073 · form4.xml · nonDerivative · entry 1

Pike Thomas · CIK 0001471570 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,963

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: 0000916076-26-000071 · form4.xml · nonDerivative · entry 1

LYONS MARTIN J · CIK 0001190099 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 374

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: 0000916076-26-000069 · form4.xml · nonDerivative · entry 1

WAJSGRAS DAVID C · CIK 0001193800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,959

SEC source: 0000916076-26-000068 · form4.xml · nonDerivative · entry 1

SLAGER DONALD W · CIK 0001245142 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,064

SEC source: 0000916076-26-000067 · form4.xml · nonDerivative · entry 1

Pike Thomas · CIK 0001471570 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,904

SEC source: 0000916076-26-000066 · form4.xml · nonDerivative · entry 1

PEREZ LAREE E · CIK 0001243153 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,730

SEC source: 0000916076-26-000065 · form4.xml · nonDerivative · entry 1

Mack Mary T · CIK 0001689162 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 914

SEC source: 0000916076-26-000062 · form4.xml · nonDerivative · entry 1

Foxx Anthony R · CIK 0001831914 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,615

SEC source: 0000916076-26-000064 · form4.xml · nonDerivative · entry 1

LYONS MARTIN J · CIK 0001190099 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 313

SEC source: 0000916076-26-000060 · form4.xml · nonDerivative · entry 1

DELLY GAYLA J · CIK 0001218358 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 313

SEC source: 0000916076-26-000058 · form4.xml · nonDerivative · entry 1

Ables Dorothy M · CIK 0001448781 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,221

SEC source: 0000916076-26-000051 · form4.xml · nonDerivative · entry 1

Samborski Christopher William · CIK 0002131980 · EVP, COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,762

F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in three equal installments on the sixth, seventh and eighth anniversaries of the award date, subject to continued employment and other terms and conditions specified in the award agreement.

SEC source: 0000916076-26-000047 · form4.xml · nonDerivative · entry 1

Schoen George Frederick · CIK 0002115116 · EVP, GC and Corp. Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,673

F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in equal installments over eight years from the date of grant, subject to continued employment and other terms and conditions specified in the award agreement.

SEC source: 0000916076-26-000044 · form4.xml · nonDerivative · entry 1

Petro Michael J · CIK 0001878191 · SVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,358.6026

F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in three equal installments on the third, fourth and fifth anniversaries of the award date, subject to continued employment and other terms and conditions specified in the award agreement.

SEC source: 0000916076-26-000042 · 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: 176,038

F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award cliff vests on the third anniversary of the award date, subject to continued employment and other terms and conditions specified in the award agreement.

SEC source: 0000916076-26-000040 · form4.xml · nonDerivative · entry 1

McCunniff Donald A. · CIK 0001355849 · EVP and CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,518

F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award cliff vests on the third anniversary of the award date, subject to continued employment and other terms and conditions specified in the award agreement.

SEC source: 0000916076-26-000034 · form4.xml · nonDerivative · entry 1

WAJSGRAS DAVID C · CIK 0001193800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,646

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: 0000916076-26-000030 · form4.xml · nonDerivative · entry 1

KORALESKI JOHN J · CIK 0001200010 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,822

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: 0000916076-26-000032 · form4.xml · nonDerivative · entry 1

Pike Thomas · CIK 0001471570 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,591

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: 0000916076-26-000028 · form4.xml · nonDerivative · entry 2

Petro Michael J · CIK 0001878191 · SVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,398.6026

SEC source: 0000916076-26-000026 · 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: 170,119

SEC source: 0000916076-26-000020 · form4.xml · nonDerivative · entry 2

Cardin Robert J · CIK 0001592427 · SVP, Controller & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,459

SEC source: 0000916076-26-000022 · form4.xml · nonDerivative · entry 2

Flynn Jason Paul · CIK 0002083174 · SVP and CIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,494

SEC source: 0000916076-26-000028 · form4.xml · nonDerivative · entry 1

Petro Michael J · CIK 0001878191 · SVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,492.6026

SEC source: 0000916076-26-000026 · 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: 171,340

SEC source: 0000916076-26-000020 · form4.xml · nonDerivative · entry 1

Cardin Robert J · CIK 0001592427 · SVP, Controller & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,562

SEC source: 0000916076-26-000024 · form4.xml · nonDerivative · entry 1

McCunniff Donald A. · CIK 0001355849 · EVP and CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,558

SEC source: 0000916076-26-000022 · form4.xml · nonDerivative · entry 1

Flynn Jason Paul · CIK 0002083174 · SVP and CIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,524

SEC source: 0000916076-26-000018 · form4.xml · nonDerivative · entry 1

Petro Michael J · CIK 0001878191 · SVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,703.6026

F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in equal installments over three years from the date of grant.

SEC source: 0000916076-26-000016 · 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: 173,145

F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in equal installments over three years from the date of grant.

SEC source: 0000916076-26-000016 · 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: 166,740

SEC source: 0000916076-26-000014 · form4.xml · nonDerivative · entry 1

McCunniff Donald A. · CIK 0001355849 · EVP and CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,750

F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in equal installments over three years from the date of grant.

SEC source: 0000916076-26-000012 · form4.xml · nonDerivative · entry 2

Flynn Jason Paul · CIK 0002083174 · SVP and CIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,701

F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in equal installments over three years from the date of grant.

SEC source: 0000916076-26-000012 · form4.xml · nonDerivative · entry 1

Flynn Jason Paul · CIK 0002083174 · SVP and CIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,106

SEC source: 0000916076-26-000010 · form4.xml · nonDerivative · entry 1

Cardin Robert J · CIK 0001592427 · SVP, Controller & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,771

F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in equal installments over three years from the date of grant.

SEC source: 0000916076-26-000008 · form4.xml · nonDerivative · entry 2

Petro Michael J · CIK 0001878191 · SVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,772.6026

SEC source: 0000916076-26-000008 · form4.xml · nonDerivative · entry 1

Petro Michael J · CIK 0001878191 · SVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,530.6026

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 24, 2023. 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, 2023, through December 31, 2025. On February 17, 2026, 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, 2025.

SEC source: 0000916076-26-000006 · form4.xml · nonDerivative · entry 2

Flynn Jason Paul · CIK 0002083174 · SVP and CIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,514

SEC source: 0000916076-26-000006 · form4.xml · nonDerivative · entry 1

Flynn Jason Paul · CIK 0002083174 · SVP and CIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,621

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 24, 2023. 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, 2023, through December 31, 2025. On February 17, 2026, 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, 2025.

SEC source: 0000916076-26-000004 · 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: 164,524

SEC source: 0000916076-26-000004 · 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: 174,241

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 24, 2023. 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, 2023, through December 31, 2025. On February 17, 2026, 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, 2025.

SEC source: 0000916076-26-000002 · form4.xml · nonDerivative · entry 2

Cardin Robert J · CIK 0001592427 · SVP, Controller & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,113

SEC source: 0000916076-26-000002 · form4.xml · nonDerivative · entry 1

Cardin Robert J · CIK 0001592427 · SVP, Controller & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,935

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 24, 2023. 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, 2023, through December 31, 2025. On February 17, 2026, 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, 2025.