MLM / Martin Marietta Materials, Inc. - SEC-Einreichungen, Jahresbericht, Proxy Statement

As filed with the Securities and Exchange Commission on May 15, 2026.

As filed with the Securities and Exchange Commission on May 15, 2026. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Martin Marietta Materials, Inc. (Exact name of registrant as specified in its charter) North Carolina 56-1848578 (State or other jurisdiction of incorporation or organizatio

Table 1: Newly Registered Securities

Calculation of Filing Fee Tables S-8 MARTIN MARIETTA MATERIALS INC Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee 1 Equity Common Stock, $0.

MARTIN MARIETTA AMENDED AND RESTATED STOCK-BASED AWARD PLAN Adopted: May 8, 1998 As Amended May 8, 1998, August 17, 2000, May 22, 2001 April 3, 2006, February 18, 2016, and February 19, 2026

Exhibit 99.1 MARTIN MARIETTA AMENDED AND RESTATED STOCK-BASED AWARD PLAN Adopted: May 8, 1998 As Amended May 8, 1998, August 17, 2000, May 22, 2001 April 3, 2006, February 18, 2016, and February 19, 2026 SECTION 1. Establishment and Purpose The Martin Marietta Amended and Restated Stock-Based Award Plan (the “Plan”) was adopted by the shareholders of Martin Marietta Materials, Inc. (the “Corporati

FORM 8-K Item 9.01 Financial Statements and Exhibits.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 14, 2026 MARTIN MARIETTA MATERIALS, INC. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (C

FORM 8-K Item 2.02 Results of Operations and Financial Condition. Item 7.01 Regulation FD Disclosure. Item 9.01 Financial Statements and Exhibits.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2026 MARTIN MARIETTA MATERIALS, INC. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation)

EXHIBIT 32.02

EXHIBIT 32.02 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended March 31, 2026 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, Michael J. Petro, the Chief Financia

Legal and Administrative Proceedings

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

MARTIN MARIETTA REPORTS FIRST-QUARTER 2026 RESULTS Revenues Increased 17% with Momentum Continuing in April Completed Asset Exchange with QUIKRETE Entered into a Definitive Agreement to Acquire New Frontier Materials Reaffirmed Full-Year 2026 Guidanc

MARTIN MARIETTA REPORTS FIRST-QUARTER 2026 RESULTS Revenues Increased 17% with Momentum Continuing in April Completed Asset Exchange with QUIKRETE Entered into a Definitive Agreement to Acquire New Frontier Materials Reaffirmed Full-Year 2026 Guidance Based on Strong Underlying Demand RALEIGH, N.

EXHIBIT 31.01

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make

EXHIBIT 95

Appendix 1 EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company’s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act).

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, Michael J. Petro, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to m

EXHIBIT 32.01

EXHIBIT 32.01 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended March 31, 2026 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, C. Howard Nye, the Chief Executive O

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2026 Martin Marietta Ma

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2026 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 001-12744 56-1848578 (State or Other Jurisdiction of Incorporation

MARTIN MARIETTA APPOINTS CHRISTOPHER W. SAMBORSKI CHIEF OPERATING OFFICER

Exhibit 99.1 MARTIN MARIETTA APPOINTS CHRISTOPHER W. SAMBORSKI CHIEF OPERATING OFFICER Raleigh, N.C. (April 27, 2026) – Martin Marietta Materials, Inc. (NYSE: MLM) (Martin Marietta or the Company) a leading national supplier of aggregates and other building materials, today announced the appointment of Chris Samborski as Executive Vice President and Chief Operating Officer, effective May 1, 2026.

ARS

DearFellowShareholders, For Marti n Mariett a, 2025 marked the successful completi on of our StrategicOperati ngAnalysisandReview(SOAR)2025plan,aperioddefi ned bydeliberateacti on,disciplinedcapitalallocati onandanunwaveringfocus onlong-termvaluecreati on.

DEF 14A

To Our Shareholders Dear Shareholders: It is my pleasure to invite you to attend Martin Marietta’s 2026 Annual Meeting of Shareholders on Thursday, May 14, 2026.

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

MARTIN MARIETTA COMPLETES ASSET EXCHANGE WITH QUIKRETE HOLDINGS, INC

Exhibit 99.1 MARTIN MARIETTA COMPLETES ASSET EXCHANGE WITH QUIKRETE HOLDINGS, INC Raleigh, N.C. (February 23, 2026) – Martin Marietta Materials, Inc. (NYSE: MLM) (Martin Marietta or the Company) today announced the completion of its previously announced asset exchange with Quikrete Holdings, Inc. (QUIKRETE) on February 23, 2026. Under the terms of the transaction, Martin Marietta acquired aggregat

ASSET EXCHANGE SUPPLEMENTAL INFORMATION February 23, 2026 Asset Exchange Supplemental Information 2 Statement Regarding Safe Harbor for Forward-Looking Statements Investors are cautioned that all statements herein that relate to the future involve ri

Exhibit 99.2 ASSET EXCHANGE SUPPLEMENTAL INFORMATION February 23, 2026 Asset Exchange Supplemental Information 2 Statement Regarding Safe Harbor for Forward-Looking Statements Investors are cautioned that all statements herein that relate to the future involve risks and uncertainties and are based on assumptions that the Company believes in good faith are reasonable but which may be materially dif

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) February 23, 2026 Martin Marietta Ma

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) February 23, 2026 Martin Marietta Materials, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE

Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b) (2) REGIONS BANK (Exact name of trustee as specified in its charter) Alabama (Jurisdiction of incorporation

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 CERTIFICATIONS I, Michael J. Petro, certify that: 1. I have reviewed this Form 10-K of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material

MARTIN MARIETTA MATERIALS, INC., as Issuer Regions Bank, as Trustee FORM OF INDENTURE Dated as of [●] SUBORDINATED DEBT SECURITIES

Exhibit 4.10 MARTIN MARIETTA MATERIALS, INC., as Issuer Regions Bank, as Trustee FORM OF INDENTURE Dated as of [●] SUBORDINATED DEBT SECURITIES Trust Indenture Act Section Indenture Section 310(a)(1) 7.10 (a)(2) 7.10 (a)(3) N.A. (a)(4) N.A. (a)(5) 7.10 (b) 7.3; 7.10 311(a) 7.11 (b) 7.11 312(a) 2.6 (b) 11.3 (c) 11.3 313(a) 7.6 (b)(1) 7.6 (b)(2) 7.6; 7.7 (c) 7.6; 11.2 (d) 7.6 314(a) 4.2; 4.3 (b) N.A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b) (2) REGIONS BANK (Exact name of trustee as specified in its charter) Alabama (Jurisdiction of incorporation

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EXHIBIT 23.01 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-271686) and Form S-8 (Nos. 33-83516, 333-37886, 333-79039, 333-115918, 333-85608, 333-15429, 333-211735, 333-197201 and 333-291504) of Martin Marietta Materials, Inc. of our report dated February 19, 2026 relating to the fina

WRITTEN STATEMENT PURSUANT TO 18 U.S.C. 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 32.01 WRITTEN STATEMENT PURSUANT TO 18 U.S.C. 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the 2025 Annual Report on Form 10-K (the Report) of Martin Marietta Materials, Inc. (the Registrant), as filed with the Securities and Exchange Commission, I, C. Howard Nye, the Chief Executive Officer of the Registrant, certify that: (1) the Report fu

WRITTEN STATEMENT PURSUANT TO 18 U.S.C. 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 32.02 WRITTEN STATEMENT PURSUANT TO 18 U.S.C. 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the 2025 Annual Report on Form 10-K (the Report) of Martin Marietta Materials, Inc. (the Registrant), as filed with the Securities and Exchange Commission, I, Michael J. Petro, the Chief Financial Officer of the Registrant, certify that: (1) the Report

SUBSIDIARIES OF MARTIN MARIETTA MATERIALS, Inc. AS OF DECEMBER 31, 2025

EXHIBIT 21.01 SUBSIDIARIES OF MARTIN MARIETTA MATERIALS, Inc. AS OF DECEMBER 31, 2025 Percent Name of Subsidiary Owned 1560947 B.C. LTD., a British Columbia, Canada corporation 100%1 2M Lands, LLC, a North Carolina limited liability company 100%2 Alamo Gulf Coast Railroad Company, a Texas corporation 99.5%3 Alamo North Texas Railroad Company, a Texas corporation 99.5%4 Albert Frei & Sons, Inc., a

PART I PART II PART III PART IV

a c9 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-12744 MARTIN MARIE

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 CERTIFICATIONS I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-K of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fac

As filed with the Securities and Exchange Commission on February 19, 2026

As filed with the Securities and Exchange Commission on February 19, 2026 Registration No.

MSHA ID

EXHIBIT 95 MINE SAFETY DISCLOSURE EXHIBIT The operation of the Company’s U.S. aggregate quarries and mines (including the mining operations of the cement product line) is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act). MSHA inspects the Company’s quarries and mines (and cement plants) on a regula

Security Type

Calculation of Filing Fee Tables S-3 MARTIN MARIETTA MATERIALS INC Table 1: Newly Registered and Carry Forward Securities ☐Not Applicable Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt Debt Securities 457(r) 0.

FORM 8-K Item 1.04 Mine Safety – Reporting of Shutdowns and Patterns of Violations.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 11, 2026 MARTIN MARIETTA MATERIALS, INC. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporatio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 31, 2025 Martin Mariett

falseMARTIN MARIETTA MATERIALS INC000091607600009160762023-11-202023-11-20falseMARTIN MARIETTA MATERIALS INC000091607600009160762023-12-212023-12-21falseMartin Marietta Materials Inc.

LOAN MODIFICATION NO. 4 AND EXTENSION AGREEMENT

Exhibit 10.1 Execution Version LOAN MODIFICATION NO. 4 AND EXTENSION AGREEMENT LOAN MODIFICATION NO. 4 AND EXTENSION AGREEMENT dated as of December 19, 2025 (this “Agreement”) among Martin Marietta Materials, Inc., a North Carolina corporation (the “Borrower”), the Lenders (as defined below) party hereto and JPMorgan Chase Bank, N.A. (“JPMCB”), as administrative agent (in such capacity, the “Admin

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 19, 2025 Martin Mariett

falseMARTIN MARIETTA MATERIALS INC000091607600009160762023-11-202023-11-20falseMARTIN MARIETTA MATERIALS INC000091607600009160762023-12-212023-12-21falseMartin Marietta Materials Inc.

Table 1: Newly Registered Securities

Calculation of Filing Fee Tables S-8 MARTIN MARIETTA MATERIALS INC Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee 1 Equity Common Stock, $0.

MARTIN MARIETTA MATERIALS, INC. 2025 EMPLOYEE STOCK PURCHASE PLAN

Exhibit 99.1 MARTIN MARIETTA MATERIALS, INC. 2025 EMPLOYEE STOCK PURCHASE PLAN 1.  Purpose. The Plan is intended to qualify as an “employee stock purchase plan” under Section 423 of the Code and its provisions will be construed in a manner consistent with Section 423 of the Code. 2.  Definitions. As used herein, the following definitions will apply: (a) “Administrator” means the Board or the Commi

As filed with the Securities and Exchange Commission on November 13, 2025.

As filed with the Securities and Exchange Commission on November 13, 2025. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Martin Marietta Materials, Inc. (Exact name of registrant as specified in its charter) North Carolina (State or other jurisdiction of incorporation or organization) 56-

EXHIBIT 95

Appendix 1 EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company’s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act).

MARTIN MARIETTA REPORTS THIRD-QUARTER 2025 RESULTS Achieves Record Quarterly Aggregates Revenues, Profitability and Margin Establishes Record Quarterly Revenues and Third Quarter Gross Profit in Specialties Business Raises Full-Year 2025 Guidance

MARTIN MARIETTA REPORTS THIRD-QUARTER 2025 RESULTS Achieves Record Quarterly Aggregates Revenues, Profitability and Margin Establishes Record Quarterly Revenues and Third Quarter Gross Profit in Specialties Business Raises Full-Year 2025 Guidance RALEIGH, N.

EXHIBIT 31.01

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make

EXHIBIT 32.02

EXHIBIT 32.02 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended September 30, 2025 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, Michael J. Petro, the Chief Fina

EXHIBIT 32.01

EXHIBIT 32.01 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended September 30, 2025 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, C. Howard Nye, the Chief Executi

FORM 8-K Item 2.02 Results of Operations and Financial Condition. Item 7.01 Regulation FD Disclosure. Item 9.01 Financial Statements and Exhibits.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 04, 2025 MARTIN MARIETTA MATERIALS INC (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation)

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, Michael J. Petro, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to m

Legal and Administrative Proceedings

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

Subnational Governmental Entity / Payee

Exhibit 2.01 Total payments by payee for the year ended December 31, 2024 (US Dollars (USD) in Millions): Country Subnational Governmental Entity / Payee Taxes 1 Royalties Payment Amount US Department of Treasury 2 $ 319.4 $ — $ 319.4 US Bureau of Land Management — 1.5 1.5 Total US 320.9 CA Municipality of Guysborough 3 0.3 — 0.3 Total CA 0.3 Total $ 321.2 Total payments to governments by project

XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT

Municipality of Guysborough [Member] Municipality of Guysborough. Martin Marietta Materials Canada Limited [Member] Martin Marietta Materials Canada Limited. C A - N S Sand / Gravel / Stone / Open Pit [Member] CA - NS sand/gravel/stone/open pit. CA-NS/sand/gravel/stone/Open Pit [Member] Martin Marietta Materials, Inc [Member] Martin Marietta Materials, Inc. U S - U T / Sand / Gravel / Stone / Open

Section 2 – Resource Extraction Issuer Disclosure. Item 2.01 Resource Extraction Issuer Disclosure and Report. Section 3 – Exhibits. Item 3.01 Exhibits.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): September 16, 2025 MARTIN MARIETTA

false000091607600009160762024-09-182024-09-18 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): September 16, 2025 MARTIN MARIETTA MATERIALS, INC.

Seventeenth Amendment to Credit and Security Agreement

Exhibit 10.01 Seventeenth Amendment to Credit and Security Agreement This Seventeenth Amendment to Credit and Security Agreement (herein, the “Amendment”) is entered into as of September 16, 2025 (the “Effective Date”), among Martin Marietta Funding LLC, a Delaware limited liability company (“Borrower”), Martin Marietta Materials, Inc., a North Carolina corporation, as initial Servicer (the “Servi

Capital Markets Day September 3, 2025 Welcome and Opening Remarks 2025 Capital Markets Day 2 Jacklyn Rooker VP, Investor Relations BENSON QUARRY ‖ BENSON, NORTH CAROLINA Statement Regarding Safe Harbor for Forward-Looking Statements Investors are cau

Exhibit 99.1 Capital Markets Day September 3, 2025 Welcome and Opening Remarks 2025 Capital Markets Day 2 Jacklyn Rooker VP, Investor Relations BENSON QUARRY ‖ BENSON, NORTH CAROLINA Statement Regarding Safe Harbor for Forward-Looking Statements Investors are cautioned that all statements herein that relate to the future involve risks and uncertainties and are based on assumptions that the Company

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 3, 2025 MARTIN MARIETTA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 3, 2025 MARTIN MARIETTA MATERIALS, INC. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction (Commission Fil

EXHIBIT 95

Appendix 1 EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company’s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act).

EXHIBIT 31.01

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make

EXHIBIT 32.01

EXHIBIT 32.01 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended June 30, 2025 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, C. Howard Nye, the Chief Executive Of

MARTIN MARIETTA REPORTS SECOND-QUARTER 2025 RESULTS Record Second-Quarter Aggregates Unit Profitability Underscores Pricing Strength and Cost Discipline Magnesia Specialties Achieves Record Quarterly Revenues and Second-Quarter Profitability Collecti

MARTIN MARIETTA REPORTS SECOND-QUARTER 2025 RESULTS Record Second-Quarter Aggregates Unit Profitability Underscores Pricing Strength and Cost Discipline Magnesia Specialties Achieves Record Quarterly Revenues and Second-Quarter Profitability Collective Portfolio Actions Strengthen Long-Term Earnings Growth Potential Raising Full-Year 2025 Guidance RALEIGH, N.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2025 Martin Marietta M

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2025 Martin Marietta Materials Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 001-12744 56-1848578 (State or Other Jurisdiction of Incorporation

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, Michael J. Petro, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to m

EXHIBIT 32.02

EXHIBIT 32.02 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended June 30, 2025 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, Michael J. Petro, the Chief Financial

Equity and Asset Exchange Agreement, dated as of August 3, 2025, between Martin Marietta Materials, Inc. and Quikrete Holdings, Inc.

Exhibit 2.1 EXECUTION VERSION EQUITY AND ASSET EXCHANGE AGREEMENT by and between MARTIN MARIETTA MATERIALS, INC. AND QUIKRETE HOLDINGS, INC. Dated as of August 3, 2025 TABLE OF CONTENTS Page ARTICLE I PURCHASE AND SALE OF THE TRANSFERRED EQUITY INTERESTS AND THE TRANSFERRED ASSETS; CLOSING 1 Section 1.01. Purchase and Sale of the Transferred Equity Interests and Transferred Assets 1 Section 1.02.

Legal and Administrative Proceedings

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

FORM 8-K Item 2.02 Results of Operations and Financial Condition. Item 7.01 Regulation FD Disclosure. Item 9.01 Financial Statements and Exhibits.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 07, 2025 MARTIN MARIETTA MATERIALS INC (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2025 Martin Marietta M

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2025 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina (State or Other Jurisdiction of Incorporation) 001-12744 (Commiss

MARTIN MARIETTA AND QUIKRETE TO EXCHANGE CERTAIN CEMENT AND CONCRETE ASSETS FOR AGGREGATES ASSETS COMPANY ALSO COMPLETES ACQUISITION OF PREMIER MAGNESIA, LLC PREVIEWS SECOND QUARTER 2025 EARNINGS AND RAISES FULL-YEAR GUIDANCE

Exhibit 99.1 MARTIN MARIETTA AND QUIKRETE TO EXCHANGE CERTAIN CEMENT AND CONCRETE ASSETS FOR AGGREGATES ASSETS COMPANY ALSO COMPLETES ACQUISITION OF PREMIER MAGNESIA, LLC PREVIEWS SECOND QUARTER 2025 EARNINGS AND RAISES FULL-YEAR GUIDANCE Raleigh, N.C. (August 4, 2025) – Martin Marietta Materials, Inc. (NYSE: MLM) (Martin Marietta or the Company), today announced that it has entered into a definit

MARTIN MARIETTA APPOINTS MICHAEL J. PETRO AS CHIEF FINANCIAL OFFICER

Exhibit 99.1 MARTIN MARIETTA APPOINTS MICHAEL J. PETRO AS CHIEF FINANCIAL OFFICER Raleigh, N.C., (July 8, 2025) – Martin Marietta Materials, Inc. (NYSE: MLM) (“Martin Marietta” or the “Company”), a leading national supplier of aggregates and heavy building materials, today announced the appointment of Michael J. Petro as Senior Vice President and Chief Financial Officer, effective immediately. Rob

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 7, 2025 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 001-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K  ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR  TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 1-12744 MARTIN MARIETTA SAVINGS and INVESTMENT PLAN (Full tit

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EXHIBIT 23.01 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the Registration Statement (Forms S-8 No. 333-115918 and No. 333-15429) pertaining to the Amended and Restated Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors, and the Martin Marietta Savings and Investment Plan (formerly the Martin Marietta Materials, Inc

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2025 MARTIN MARIETTA MATERIALS INC (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (Com

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, Robert J. Cardin, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to m

EXHIBIT 32.01

EXHIBIT 32.01 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended March 31, 2025 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, C. Howard Nye, the Chief Executive O

EXHIBIT 95

Appendix 1 EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company’s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act).

MARTIN MARIETTA REPORTS FIRST-QUARTER 2025 RESULTS Pricing Momentum, Cost Discipline and Acquisition Contributions Drive Margin Expansion Double-Digit Aggregates Gross Profit Per Ton Growth Drives Record First Quarter Aggregates Profitability Magnesi

MARTIN MARIETTA REPORTS FIRST-QUARTER 2025 RESULTS Pricing Momentum, Cost Discipline and Acquisition Contributions Drive Margin Expansion Double-Digit Aggregates Gross Profit Per Ton Growth Drives Record First Quarter Aggregates Profitability Magnesia Specialties Posts Quarterly Records for Revenues and Profitability RALEIGH, N.

EXHIBIT 32.02

EXHIBIT 32.02 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended March 31, 2025 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, Robert J. Cardin, the Interim Chief

EXHIBIT 31.01

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make

Legal and Administrative Proceedings

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2025 MARTIN MARIETTA MATERIALS INC (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (C

ARS

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

false000091607600009160762022-12-222022-12-22 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Martin Marietta Internal Organizational Announcement, dated April 10, 2025

Exhibit 10.1 DATE: April 10, 2025 FROM: Ward Nye Chair and CEO ORGANIZATIONAL ANNOUNCEMENT After nearly eight years with Martin Marietta, James (Jim) A.J. Nickolas has decided to depart as Executive Vice President and Chief Financial Officer, effective immediately, to move his family back to their beloved hometown. Jim will join a Chicago-based publicly traded company, as its Chief Financial Offic

List of subsidiaries of Martin Marietta Materials, Inc.

EXHIBIT 21.01 SUBSIDIARIES OF MARTIN MARIETTA MATERIALS, INC. AS OF DECEMBER 31, 2024 Percent Name of Subsidiary Owned 2M Lands, LLC, a North Carolina limited liability company 100%1 Alamo Gulf Coast Railroad Company, a Texas corporation 99.5%2 Alamo North Texas Railroad Company, a Texas corporation 99.5%3 Albert Frei & Sons, Inc., a Colorado corporation 100%4 American Aggregates Corporation, a No

Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm for Martin Marietta Materials, Inc. and consolidated subsidiaries

EXHIBIT 23.01 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-271686) and Form S-8 (Nos. 33-83516, 333-37886, 333-79039, 333-115918, 333-85608, 333-15429, 333-211735 and 333-197201) of Martin Marietta Materials, Inc. of our report dated February 21, 2025 relating to the financial statem

Certification dated February 21, 2025 of Chief Financial Officer required by 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.02 WRITTEN STATEMENT PURSUANT TO 18 U.S.C. 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the 2024 Annual Report on Form 10-K (the Report) of Martin Marietta Materials, Inc. (the Registrant), as filed with the Securities and Exchange Commission, I, James A. J. Nickolas, the Chief Financial Officer of the Registrant, certify that: (1) the Re

Certification dated February 21, 2025 of Chief Executive Officer required by 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.01 WRITTEN STATEMENT PURSUANT TO 18 U.S.C. 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the 2024 Annual Report on Form 10-K (the Report) of Martin Marietta Materials, Inc. (the Registrant), as filed with the Securities and Exchange Commission, I, C. Howard Nye, the Chief Executive Officer of the Registrant, certify that: (1) the Report fu

Mine Safety Disclosure Exhibit

EXHIBIT 95 MINE SAFETY DISCLOSURE EXHIBIT The operation of the Company’s U.S. aggregate quarries and mines (including the mining operations of the cement product line) is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act). MSHA inspects the Company’s quarries and mines (and cement plants) on a regula

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

a c9 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-12744 MARTIN MARIE

Certification dated February 21, 2025 of Chief Executive Officer pursuant to Securities and Exchange Act of 1934, rule 13a‑14, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 CERTIFICATIONS I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-K of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fac

Certification dated February 21, 2025 of Chief Financial Officer pursuant to Securities and Exchange Act of 1934, rule 13a‑14, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 CERTIFICATIONS I, James A. J. Nickolas, certify that: 1. I have reviewed this Form 10-K of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a mater

Martin Marietta Insider Trading Policy

EXHIBIT 19.01 Martin Marietta Materials, Inc. Insider Trading Policy I. PURPOSE The purpose of this policy (the “Policy”) is to promote compliance with U.S. securities laws that (i) prohibit trading in securities of a company while aware of material nonpublic information about that company, commonly known as “insider trading,” or (ii) providing such information to other persons who may trade on th

MARTIN MARIETTA REPORTS FOURTH-QUARTER AND FULL-YEAR 2024 RESULTS Earnings Growth and Margin Expansion Resumed in the Fourth Quarter Achieved Full-Year Records for Aggregates Revenues, Gross Profit and Unit Profitability Completed Aggregates Bolt-Ons

MARTIN MARIETTA REPORTS FOURTH-QUARTER AND FULL-YEAR 2024 RESULTS Earnings Growth and Margin Expansion Resumed in the Fourth Quarter Achieved Full-Year Records for Aggregates Revenues, Gross Profit and Unit Profitability Completed Aggregates Bolt-Ons in Florida, Southern California and Texas in the Fourth Quarter RALEIGH, N.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 12, 2025 MARTIN MARIETTA MATERIALS INC (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation)

Loan Modification No. 3 and Extension Agreement dated as of December 20, 2024 among the Corporation, the Lenders (as defined in the Amendment) and JPMCB.

Exhibit 10.1 LOAN MODIFICATION NO. 3 AND EXTENSION AGREEMENT LOAN MODIFICATION NO. 3 AND EXTENSION AGREEMENT dated as of December 20, 2024 (this “Agreement”) among Martin Marietta Materials, Inc., a North Carolina corporation (the “Borrower”), the Lenders (as defined below) party hereto and JPMorgan Chase Bank, N.A. (“JPMCB”), as administrative agent (in such capacity, the “Administrative Agent”).

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

falseMARTIN MARIETTA MATERIALS INC000091607600009160762023-11-202023-11-20falseMARTIN MARIETTA MATERIALS INC000091607600009160762023-12-212023-12-21 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 03, 2024 MARTIN MARIETTA MATERIALS INC (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation)

MLM / Martin Marietta Materials, Inc. / T. Rowe Price Investment Management, Inc. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ) MARTIN MARIETTA MATERIALS (Name of Issuer) COMMON STOCK (Title of Class of Securities) 573284106 (CUSIP NUMBER) September 30, 2024 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule pursuant to which this Sch

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 4, 2024 MARTIN MARIETTA MATERIALS, INC. (Exact name of registrant as specified in its charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation

Fifth Supplemental Indenture, dated as of November 4, 2024, between Martin Marietta Materials, Inc. and Regions Bank, as trustee, governing the Notes.

Exhibit 4.2 Execution Version MARTIN MARIETTA MATERIALS, INC., as Issuer and Regions Bank, as Trustee FIFTH SUPPLEMENTAL INDENTURE Dated as of November 4, 2024 to INDENTURE Dated as of May 22, 2017 5.150% Senior Notes due 2034 5.500% Senior Notes due 2054 TABLE OF CONTENTS Page ARTICLE I Definitions SECTION 1.1 Definition of Terms 2 SECTION 1.2 Additional Definitions 2 SECTION 1.3 Other Definition

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

false000091607600009160762024-09-182024-09-18 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 31, 2024 MARTIN MARIETTA MATERIALS INC.

Calculation of Filing Fee Table (Form Type) Martin Marietta Materials, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107.1 Calculation of Filing Fee Table 424(b)(2) (Form Type) Martin Marietta Materials, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security  Type  Security  Class Title  Fee  Calculation  or Carry  Forward  Rule  Amount Registered  Proposed  Maximum  Offering  Price Per  Unit  Maximum Aggregate  Offering Price  Fee Rate

Joint book-running managers Deutsche Bank Securities J.P. Morgan Truist Securities PNC Capital Markets LLC Wells Fargo Securities Regions Securities LLC Comerica Securities FHN Financial Securities Corp. Loop Capital Markets First Citizens Capital Se

Filed Pursuant to Rule 424(b)(2) Registration No. 333-271686 Prospectus Supplement (To prospectus dated May 5, 2023) $1,500,000,000 Martin Marietta Materials, Inc. $750,000,000 5.150% Senior Notes due 2034 $750,000,000 5.500% Senior Notes due 2054 Martin Marietta Materials, Inc. is offering $750,000,000 aggregate principal amount of its 5.150% Senior Notes due 2034 (the “2034 notes”) and $750,000,

Underwriting Agreement, dated as of October 31, 2024, between Martin Marietta Materials, Inc. and Deutsche Bank Securities Inc. and J.P. Morgan Securities LLC, as representatives of the several underwriters named therein.

Exhibit 1.1 Execution Version MARTIN MARIETTA MATERIALS, INC. $750,000,000 5.150% SENIOR NOTES DUE 2034 $750,000,000 5.500% SENIOR NOTES DUE 2054 Underwriting Agreement October 31, 2024 Deutsche Bank Securities Inc. J.P. Morgan Securities LLC As Representatives of the several Underwriters listed in Schedule I hereto c/o Deutsche Bank Securities Inc. 1 Columbus Circle New York, New York 10019 c/o J

Martin Marietta Announces Pricing Terms of Debt Offering

Exhibit 99.1 Martin Marietta Announces Pricing Terms of Debt Offering October 31, 2024 Raleigh, N.C., October 31, 2024 (GLOBE NEWSWIRE) – Martin Marietta Materials, Inc. (NYSE:MLM) (“Martin Marietta” or the “Company”) announced today the pricing of its offering of $750 million aggregate principal amount of 5.150% Senior Notes due 2034 (the “2034 Notes”) and $750 million aggregate principal amount

MARTIN MARIETTA MATERIALS, INC. $750,000,000 5.150% Senior Notes due 2034 $750,000,000 5.500% Senior Notes due 2054 PRICING TERM SHEET October 31, 2024

Filed Pursuant to Rule 433 Registration No. 333-271686 Issuer Free Writing Prospectus dated October 31, 2024 Relating to Preliminary Prospectus Supplement dated October 31, 2024 MARTIN MARIETTA MATERIALS, INC. $750,000,000 5.150% Senior Notes due 2034 $750,000,000 5.500% Senior Notes due 2054 PRICING TERM SHEET October 31, 2024 This term sheet (this “Pricing Term Sheet”) relates only to the securi

Joint book-running managers Deutsche Bank Securities J.P. Morgan Prospectus supplement, dated     , 2024

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-271686 The information in this preliminary prospectus supplement is not complete and may be changed. A registration statement relating to these securities has become effective upon filing with the Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying base prospectus are not an offer to

MINE SAFETY DISCLOSURES

Appendix 1 EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company’s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.01 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended September 30, 2024 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, C. Howard Nye, the Chief Executi

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.02 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended September 30, 2024 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, James A. J. Nickolas, the Chief

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2024 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation

MARTIN MARIETTA REPORTS THIRD-QUARTER 2024 RESULTS Achieved Record Quarterly Aggregates Gross Profit Per Ton Despite Weather Impacts Delivered Record Third-Quarter Cash Flows from Operations and Magnesia Specialties Revenues and Gross Profit Acquired

Exhibit 99.1 MARTIN MARIETTA REPORTS THIRD-QUARTER 2024 RESULTS Achieved Record Quarterly Aggregates Gross Profit Per Ton Despite Weather Impacts Delivered Record Third-Quarter Cash Flows from Operations and Magnesia Specialties Revenues and Gross Profit Acquired Pure Aggregates Assets in South Florida and Southern California RALEIGH, N.C. (October 30, 2024) – Martin Marietta Materials, Inc. (NYSE

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, James A. J. Nickolas, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary

Sixteenth Amendment to Credit Agreement, dated as of September 18, 2024, among Martin Marietta Funding LLC, as borrower, Martin Marietta Materials, Inc., as servicer, and Truist Bank, successor by merger to SunTrust Bank, as lender together with the other lenders from time to time party thereto, and Truist Bank, successor by merger to Sun Trust Bank, as administrative agent for the lenders (including a conformed copy of the Credit Agreement attached as Exhibit A thereto).

Exhibit 10.01 Sixteenth Amendment to Credit and Security Agreement This Sixteenth Amendment to Credit and Security Agreement (herein, the “Amendment”) is entered into as of September 18, 2024 (the “Effective Date”), among Martin Marietta Funding LLC, a Delaware limited liability company (“Borrower”), Martin Marietta Materials, Inc., a North Carolina corporation, as initial Servicer (the “Servicer”

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): September 18, 2024 MARTIN MARIETTA MATERIALS INC (Exact Name of Registrant as Specified in Its Charter) North Carolina 001-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT

Municipality of Guysborough [Member] Municipality of Guysborough. Martin Marietta Materials Canada Limited [Member] Martin Marietta Materials Canada Limited. CA-NS/sand/gravel/stone/Open Pit [Member] C A - N S Sand / Gravel / Stone / Open Pit [Member] CA - NS sand/gravel/stone/open pit. UNITED STATES Martin Marietta Materials, Inc. [Member] Martin Marietta Materials, Inc. US-UT/sand/gravel/stone/O

XBRL INSTANCE DOCUMENT

0000916076mlm:MunicipalityOfGuysboroughMembercountry:CA2023-01-012023-12-31 0000916076mlm:MartinMariettaMaterialsCanadaLimitedMember2023-01-012023-12-31 0000916076country:CA2023-01-012023-12-31 0000916076mlm:BureauOfLandManagementMembercountry:US2023-01-012023-12-31 0000916076mlm:USCOSandGravelStoneOpenPitMember2023-01-012023-12-31 0000916076mlm:USWYSandGravelStoneOpenPitMember2023-01-012023-12-31

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC. (Exact Name of Registrant as Specified in its Charter) Commission File Number:

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

Mine Safety - Reporting of Shutdowns and Patterns of Violations

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 12, 2024 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporati

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

MINE SAFETY DISCLOSURES

Appendix 1 EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company’s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act).

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 08, 2024 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation)

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.01 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended June 30, 2024 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, C. Howard Nye, the Chief Executive Of

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.02 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended June 30, 2024 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, James A. J. Nickolas, the Chief Finan

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, James A. J. Nickolas, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary

MARTIN MARIETTA REPORTS SECOND-QUARTER 2024 RESULTS Record Second-Quarter Aggregates Gross Profit Per Ton With Pricing Gains Across All Product Lines Closing and Integration of Blue Water Acquisition Reinforces Aggregates-Led Business Model Revised F

Exhibit 99.1 MARTIN MARIETTA REPORTS SECOND-QUARTER 2024 RESULTS Record Second-Quarter Aggregates Gross Profit Per Ton With Pricing Gains Across All Product Lines Closing and Integration of Blue Water Acquisition Reinforces Aggregates-Led Business Model Revised Full-Year Guidance RALEIGH, N.C. (August 8, 2024) – Martin Marietta Materials, Inc. (NYSE: MLM) (“Martin Marietta” or the “Company”), a le

Mine Safety - Reporting of Shutdowns and Patterns of Violations

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 08, 2024 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K  ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR  TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 1-12744 MARTIN MARIETTA SAVINGS and INVESTMENT PLAN (Full tit

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EXHIBIT 23.01 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the Registration Statement (Forms S-8 No. 333-115918 and No. 333-15429) pertaining to the Amended and Restated Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors, and the Martin Marietta Savings and Investment Plan (formerly the Martin Marietta Materials, Inc

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2024 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (C

Mine Safety - Reporting of Shutdowns and Patterns of Violations

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 01, 2024 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (C

MARTIN MARIETTA REPORTS FIRST-QUARTER 2024 RESULTS First-Quarter Aggregates Gross Profit Per Ton Increased 14 Percent to $6.53 Magnesia Specialties Achieved Record Quarterly Gross Profit Quarter Highlights Include Significant Portfolio Enhancements F

Exhibit 99.1 MARTIN MARIETTA REPORTS FIRST-QUARTER 2024 RESULTS First-Quarter Aggregates Gross Profit Per Ton Increased 14 Percent to $6.53 Magnesia Specialties Achieved Record Quarterly Gross Profit Quarter Highlights Include Significant Portfolio Enhancements Full-Year 2024 Guidance Raised to $2.37 Billion at the Midpoint RALEIGH, N.C. (April 30, 2024) – Martin Marietta Materials, Inc. (NYSE: ML

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2024 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation)

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.01 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended March 31, 2024 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, C. Howard Nye, the Chief Executive O

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, James A. J. Nickolas, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary

MINE SAFETY DISCLOSURES

Appendix 1 EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company’s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act).

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.02 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended March 31, 2024 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, James A. J. Nickolas, the Chief Fina

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make

ARS

ANNUAL REPORT 2023 Martin Marietta, a member of the S&P 500 Index, is an American-based company and a leading supplier of building materials, including aggregates, cement, ready mixed concrete and asphalt.

COURTESY PDF

2024 Annual Meeting of Shareholders Proxy Statement Hunter Stone New Braunfels, Texas Diamond Elite Winner 2023April 15, 2024 Dear Shareholders: It is my pleasure to invite you to attend Martin Marietta’s 2024 Annual Meeting of Shareholders on Thursday, May 16, 2024.

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

c9 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-12744 MARTIN MARIETT

Certification dated February 23, 2024 of Chief Financial Officer required by 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.02 WRITTEN STATEMENT PURSUANT TO 18 U.S.C. 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the 2023 Annual Report on Form 10-K (the Report) of Martin Marietta Materials, Inc. (the Registrant), as filed with the Securities and Exchange Commission, I, James A. J. Nickolas, the Chief Financial Officer of the Registrant, certify that: (1) the Re

Executive Clawback Policy

EXHIBIT 97 Effective November 9, 2023 MARTIN MARIETTA MATERIALS, INC. EXECUTIVE CLAWBACK POLICY The Board of Directors (the “Board”) of Martin Marietta Materials, Inc. (the “Company”) has adopted this Dodd-Frank Executive Clawback Policy (this “Policy”), effective as of November 9, 2023 (the “Effective Date”). The purpose of this Policy is to provide for the recoupment of certain incentive compens

Certification dated February 23, 2024 of Chief Executive Officer required by 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.01 WRITTEN STATEMENT PURSUANT TO 18 U.S.C. 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the 2023 Annual Report on Form 10-K (the Report) of Martin Marietta Materials, Inc. (the Registrant), as filed with the Securities and Exchange Commission, I, C. Howard Nye, the Chief Executive Officer of the Registrant, certify that: (1) the Report fu

Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm for Martin Marietta Materials, Inc. and consolidated subsidiaries

EXHIBIT 23.01 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-271686) and Form S-8 (Nos. 33-83516, 333-37886, 333-79039, 333-115918, 333-85608, 333-15429, 333-211735, and 333-197201) of Martin Marietta Materials, Inc. of our report dated February 23, 2024 relating to the financial state

Certification dated February 23, 2024 of Chief Executive Officer pursuant to Securities and Exchange Act of 1934, rule 13a‑14, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 CERTIFICATIONS I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-K of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fac

Mine Safety Disclosure Exhibit

EXHIBIT 95 MINE SAFETY DISCLOSURE EXHIBIT The operation of the Company’s U.S. aggregate quarries and mines (including the mining operations of the cement product line) is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act). MSHA inspects the Company’s quarries and mines (and cement plants) on a regula

Certification dated February 23, 2024 of Chief Financial Officer pursuant to Securities and Exchange Act of 1934, rule 13a‑14, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 CERTIFICATIONS I, James A. J. Nickolas, certify that: 1. I have reviewed this Form 10-K of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a mater

List of subsidiaries of Martin Marietta Materials, Inc.

EXHIBIT 21.01 SUBSIDIARIES OF MARTIN MARIETTA MATERIALS, INC. AS OF DECEMBER 31, 2023 Percent Name of Subsidiary Owned 2M Lands, LLC 100%[1] Alamo Gulf Coast Railroad Company, a Texas corporation 99.5%[2] Alamo North Texas Railroad Company, a Texas corporation 99.5%[3] American Aggregates Corporation, a North Carolina corporation 100% American Materials Technologies, LLC, a Tennessee limited liabi

MLM / Martin Marietta Materials, Inc. / Select Equity Group, L.P. - SCHEDULE 13G (AMENDMENT NO. 3) Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Martin Marietta Materials, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 573284106 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which this Sched

MLM / Martin Marietta Materials, Inc. / Aristotle Capital Management, LLC Passive Investment

SC 13G/A 1 fp0086871-6sc13ga.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 3)* Martin Marietta Materials, Inc. (Name of Issuer) Common Stock, Par Value of $0.01 Per Share (Title of Class of Securities

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 14, 2024 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporatio

EXHIBIT 99.1

EX-99.1 2 s013024b.htm EXHIBIT 99.1 EXHIBIT 99.1 The identity and the Item 3 classification of the relevant subsidiary are: Select Equity Group, L.P., which is an Investment Adviser in accordance with Rule 13d-1(b)(1)(ii)(E).

MARTIN MARIETTA REPORTS FOURTH-QUARTER AND FULL-YEAR 2023 RESULTS Achieved Full-Year Records for Revenues, Profitability and Safety Performance Full-Year Aggregates Unit Profitability Improved 46.4 Percent Strong Balance Sheet Poised for Continued St

Exhibit 99.1 MARTIN MARIETTA REPORTS FOURTH-QUARTER AND FULL-YEAR 2023 RESULTS Achieved Full-Year Records for Revenues, Profitability and Safety Performance Full-Year Aggregates Unit Profitability Improved 46.4 Percent Strong Balance Sheet Poised for Continued Strategic Plan Execution RALEIGH, N.C. (February 14, 2024) – Martin Marietta Materials, Inc. (NYSE: MLM) (“Martin Marietta” or the “Company

MLM / Martin Marietta Materials, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01408-martinmariettamateri.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: Martin Marietta Materials Inc Title of Class of Securities: Common Stock CUSIP Number: 573284106 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate

MLM / Martin Marietta Materials, Inc. / BlackRock Inc. Passive Investment

SC 13G/A 1 us5732841060012624.txt us5732841060012624.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 8) MARTIN MARIETTA MATERIALS INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 573284106 - (CUSIP Number) December 31, 2023 - (Date of Event Which Requires Filing of this Statement) Check the appr

Loan Modification No. 2 and Extension Agreement dated as of December 21, 2023 among the Corporation, the Lenders party thereto and JPMorgan Chase Bank, N.A., as Administrative Agent (incorporated by reference to Exhibit 10.1 to the Martin Marietta Materials, Inc., Current Report on Form 8-K filed on December 21, 2023) (Commission File No. 1-12744)

Exhibit 10.1 LOAN MODIFICATION NO. 2 AND EXTENSION AGREEMENT LOAN MODIFICATION NO. 2 AND EXTENSION AGREEMENT dated as of December 21, 2023 (this “Agreement”) among Martin Marietta Materials, Inc., a North Carolina corporation (the “Borrower”), the Lenders (as defined below) party hereto and JPMorgan Chase Bank, N.A. (“JPMCB”), as administrative agent (in such capacity, the “Administrative Agent”).

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

falseMARTIN MARIETTA MATERIALS INC000091607600009160762023-11-202023-11-20 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Equity and Asset Purchase Agreement, dated as of November 20, 2023, among Martin Marietta Materials, Inc., CRH Americas Materials, Inc. and CRH plc (incorporated by reference to Exhibit 2.1 to the Martin Marietta Materials, Inc., Current Report on Form 8-K filed on November 24, 2023) (Commission File No. 1-12744)

Exhibit 2.1 EXECUTION VERSION EQUITY AND ASSET PURCHASE AGREEMENT by and between MARTIN MARIETTA MATERIALS, INC. CRH AMERICAS MATERIALS, INC. AND CRH PLC (solely for the purposes set forth herein) Dated as of November 20, 2023 TABLE OF CONTENTS Page ARTICLE I Purchase and Sale of the Transferred Equity Interests and the Transferred Assets; Closing SECTION 1.01 Purchase and Sale of the Transferred

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 20, 2023 Martin Mariett

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 20, 2023 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina (State or Other Jurisdiction of Incorporation) 1-12744 (Commis

MARTIN MARIETTA TO DIVEST SOUTH TEXAS CEMENT AND RELATED CONCRETE OPERATIONS TO CRH plc

Exhibit 99.1 MARTIN MARIETTA TO DIVEST SOUTH TEXAS CEMENT AND RELATED CONCRETE OPERATIONS TO CRH plc Raleigh, N.C. (November 21, 2023) – Martin Marietta Materials, Inc. (NYSE: MLM) (“Martin Marietta” or the “Company”) today announced that it has entered into a definitive agreement to sell its South Texas cement business and certain of its related concrete operations to CRH Americas Materials, Inc.

MINE SAFETY DISCLOSURES

EX-95 6 mlm-ex95.htm EX-95 Appendix 1 EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company’s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act). MSHA inspects the Company’s quarries and mines on a regular basis and issues various citations and orde

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, James A. J. Nickolas, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make

MARTIN MARIETTA REPORTS THIRD-QUARTER 2023 RESULTS Achieved Record Quarterly Consolidated Revenues, Profitability and Margins Aggregates Gross Profit Per Ton Increased 42.4 Percent to $7.89 Robust Earnings Growth Reinforces Benefits of Value-Over-Vol

Exhibit 99.1 MARTIN MARIETTA REPORTS THIRD-QUARTER 2023 RESULTS Achieved Record Quarterly Consolidated Revenues, Profitability and Margins Aggregates Gross Profit Per Ton Increased 42.4 Percent to $7.89 Robust Earnings Growth Reinforces Benefits of Value-Over-Volume Strategy Raised Adjusted EBITDA Guidance RALEIGH, N.C. (November 1, 2023) – Martin Marietta Materials, Inc. (NYSE: MLM) (“Martin Mari

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.02 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended September 30, 2023 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, James A. J. Nickolas, the Chief

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.01 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended September 30, 2023 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, C. Howard Nye, the Chief Executi

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 01, 2023 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporatio

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 20, 2023 Martin Marietta Materials, Inc. (Exact name of registrant as specified in its charter) North Carolina 001-12744 56-1848578 (State or other jurisdiction of incorporati

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): September 20, 2023 MARTIN MARIETTA MATERIALS, INC.

Fifteenth Amendment to Credit Agreement, dated as of September 20, 2023, among Martin Marietta Funding LLC, as borrower, Martin Marietta Materials, Inc., as servicer, and Truist Bank, successor by merger to SunTrust Bank, as lender together with the other lenders from time to time party thereto, and Truist Bank, successor by merger to Sun Trust Bank, as administrative agent for the lenders (including a conformed copy of the Credit Agreement attached as Exhibit A thereto) (incorporated by reference to Exhibit 10.1 to the Martin Marietta Materials, Inc., Current Report on Form 8-K filed on September 20, 2023) (Commission File No. 1-12744)

Exhibit 10.01 Fifteenth Amendment to Credit and Security Agreement This Fifteenth Amendment to Credit and Security Agreement (herein, the “Amendment”) is entered into as of September 20, 2023 (the “Effective Date”), among Martin Marietta Funding LLC, a Delaware limited liability company (“Borrower”), Martin Marietta Materials, Inc., a North Carolina corporation, as initial Servicer (the “Servicer”

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 27, 2023 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.02 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended June 30, 2023 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, James A. J. Nickolas, the Chief Finan

MINE SAFETY DISCLOSURES

Appendix 1 EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company’s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, James A. J. Nickolas, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.01 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended June 30, 2023 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, C. Howard Nye, the Chief Executive Of

MARTIN MARIETTA REPORTS SECOND-QUARTER 2023 RESULTS Established Quarterly Records for Revenues, Profitability and Unit Margins Second-Quarter Aggregates Gross Profit Per Ton Increased 27.9 Percent to $6.80 Raised Full-Year 2023 Adjusted EBITDA Guidan

Exhibit 99.1 MARTIN MARIETTA REPORTS SECOND-QUARTER 2023 RESULTS Established Quarterly Records for Revenues, Profitability and Unit Margins Second-Quarter Aggregates Gross Profit Per Ton Increased 27.9 Percent to $6.80 Raised Full-Year 2023 Adjusted EBITDA Guidance to $2.0 – $2.1 Billion RALEIGH, N.C. (July 27, 2023) – Martin Marietta Materials, Inc. (NYSE: MLM) (“Martin Marietta” or the “Company”

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EXHIBIT 23.01 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the Registration Statement (Forms S-8 No. 333-115918 and No. 333-15429) pertaining to the Amended and Restated Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors, and the Martin Marietta Savings and Investment Plan (formerly the Martin Marietta Materials, Inc

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K  ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR  TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 1-12744 MARTIN MARIETTA SAVINGS and INVESTMENT PLAN (Full tit

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 23, 2023 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 11, 2023 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (C

Form of subordinated note (included in Exhibit 4.9).

Exhibit 4.9 MARTIN MARIETTA MATERIALS, INC., as Issuer Regions Bank, as Trustee FORM OF INDENTURE Dated as of [●] SUBORDINATED DEBT SECURITIES Trust Indenture Act Section Indenture Section 310(a)(1) 7.10 (a)(2) 7.10 (a)(3) N.A. (a)(4) N.A. (a)(5) 7.10 (b) 7.3; 7.10 311(a) 7.11 (b) 7.11 312(a) 2.6 (b) 11.3 (c) 11.3 313(a) 7.6 (b)(1) 7.6 (b)(2) 7.6; 7.7 (c) 7.6; 11.2 (d) 7.6 314(a) 4.2; 4.3 (b) N.A

Statement of Eligibility of Trustee on Form T-1 under the Trust Indenture Act of 1939, as amended, of the trustee under the Senior Indenture for the Senior Debt Securities.

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b) (2) REGIONS BANK (Exact name of trustee as specified in its charter) Alabama (Jurisdiction of incorporation

As filed with the Securities and Exchange Commission on May 5, 2023

As filed with the Securities and Exchange Commission on May 5, 2023 Registration No.

Statement of Eligibility of Trustee on Form T-1 under the Trust Indenture Act of 1939, as amended, of the trustee under the Subordinated Indenture for the Subordinated Debt Securities.

Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b) (2) REGIONS BANK (Exact name of trustee as specified in its charter) Alabama (Jurisdiction of incorporation

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Martin Marietta Materials, Inc.

MARTIN MARIETTA REPORTS FIRST-QUARTER 2023 RESULTS Achieved First-Quarter Records for Revenues, Profitability and Unit Margins Aggregates Gross Profit Per Ton of $5.70 Forecasting $1.9 Billion of 2023 Adjusted EBITDA Consistent with the High End of G

Exhibit 99.1 MARTIN MARIETTA REPORTS FIRST-QUARTER 2023 RESULTS Achieved First-Quarter Records for Revenues, Profitability and Unit Margins Aggregates Gross Profit Per Ton of $5.70 Forecasting $1.9 Billion of 2023 Adjusted EBITDA Consistent with the High End of Guidance Range RALEIGH, N.C. (May 4, 2023) – Martin Marietta Materials, Inc. (NYSE: MLM) (“Martin Marietta” or the “Company”), a leading n

MINE SAFETY DISCLOSURES

Appendix 1 EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company’s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 04, 2023 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (C

Notice of Exempt Solicitation

Notice of Exempt Solicitation NAME OF REGISTRANT: Martin Marietta Materials, Inc. NAME OF PERSON RELYING ON EXEMPTION: Amundi Asset Management ADDRESS OF PERSON RELYING ON EXEMPTION: 90 Bd Pasteur, 75015 Paris, France Written materials are submitted pursuant to Rule 14a-6(g)(1) promulgated under the Securities Exchange Act of 1934. Martin Marietta Materials, Inc. (MLM) Proposal #5 “Adopt Greenhous

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 19, 2023 Martin Marietta Ma

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 19, 2023 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 001-12744 56-1848578 (State or Other Jurisdiction of Incorporation

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

ARS

MartinMarietta,amemberoftheS&P500Index,isanAmericanbased companyandaleadingsupplierofbuildingmaterials,includingaggregates, cement,readymixedconcreteandasphalt.

MLM / Martin Marietta Materials, Inc. / BAILLIE GIFFORD & CO Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 MARTIN MARIETTA MATERIALS, INC. (Amendment No. 5) - (Name of Issuer) Common Stock - (Title of Class of Securities) 573284106 - (CUSIP Number) 28 February 2023 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

List of subsidiaries of Martin Marietta Materials, Inc.

EXHIBIT 21.01 SUBSIDIARIES OF MARTIN MARIETTA MATERIALS, INC. AS OF DECEMBER 31, 2022 Percent Name of Subsidiary Owned Alamo Gulf Coast Railroad Company, a Texas corporation 99.5%1 Alamo North Texas Railroad Company, a Texas corporation 99.5%2 American Aggregates Corporation, a North Carolina corporation 100% American Materials Technologies, LLC, a Tennessee limited liability company 100%3 America

Mine Safety Disclosure Exhibit

EXHIBIT 95 MINE SAFETY DISCLOSURE EXHIBIT The operation of the Company’s U.S. aggregate quarries and mines (including the mining operations of the cement product line) is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act). MSHA inspects the Company’s quarries and mines (and cement plants) on a regula

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

c9 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-12744 MARTIN MARIETT

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 15, 2023 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporatio

MARTIN MARIETTA REPORTS FOURTH-QUARTER AND FULL-YEAR 2022 RESULTS Established Full-Year Records for Revenues, Profitability and Safety Performance Accelerating Pricing Momentum and Margin Expansion Achieved in the Fourth Quarter Underpins 2023 Adjust

Exhibit 99.1 MARTIN MARIETTA REPORTS FOURTH-QUARTER AND FULL-YEAR 2022 RESULTS Established Full-Year Records for Revenues, Profitability and Safety Performance Accelerating Pricing Momentum and Margin Expansion Achieved in the Fourth Quarter Underpins 2023 Adjusted EBITDA Guidance RALEIGH, N.C. (February 15, 2023) – Martin Marietta Materials, Inc. (NYSE: MLM) (“Martin Marietta” or the “Company”),

MLM / Martin Marietta Materials, Inc. / Select Equity Group, L.P. - SCHEDULE 13G/A, AMENDMENT #2 Passive Investment

SC 13G/A 1 s60900166a.htm SCHEDULE 13G/A, AMENDMENT #2 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Martin Marietta Materials, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 573284106 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of This Statement) Check the appropriate

MLM / Martin Marietta Materials, Inc. / Aristotle Capital Management, LLC Passive Investment

SC 13G/A 1 fp0081835-1sc13ga.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 2)* Martin Marietta Materials, Inc. (Name of Issuer) Common Stock, Par Value of $0.01 Per Share (Title of Class of Securities

EXHIBIT 99.1

EX-99.1 2 s60900166b.htm THE IDENTITY AND THE ITEM 3 CLASSIFICATION OF THE RELEVANT SUBSIDIARY EXHIBIT 99.1 The identity and the Item 3 classification of the relevant subsidiary are: Select Equity Group, L.P., which is an Investment Adviser in accordance with Rule 13d-1(b)(1)(ii)(E).

MLM / Martin Marietta Materials, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01374-martinmariettamateri.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Martin Marietta Materials Inc. Title of Class of Securities: Common Stock CUSIP Number: 573284106 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriat

MLM / Martin Marietta Materials, Inc. / BlackRock Inc. Passive Investment

SC 13G/A 1 us5732841060013123.txt us5732841060013123.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 7) MARTIN MARIETTA MATERIALS INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 573284106 - (CUSIP Number) December 31, 2022 - (Date of Event Which Requires Filing of this Statement) Check the appr

MLM / Martin Marietta Materials, Inc. / BAILLIE GIFFORD & CO Passive Investment

SC 13G/A 1 MartinMarietta30122022.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 MARTIN MARIETTA MATERIALS, INC. (Amendment No. 4) - (Name of Issuer) Common Stock - (Title of Class of Securities) 573284106 - (CUSIP Number) 30 December 2022 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to des

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 22, 2022 Martin Marietta Materials, Inc. (Exact name of registrant as specified in its charter) North Carolina 56-1848578 (State or other jurisdiction 001-12744 (IRS Employer

Loan Modification No. 1 and Extension Agreement dated as of December 22, 2022, among Martin Marietta Materials, Inc., the Lenders party thereto and JPMorgan Chase Bank, N.A., as Administrative Agent (incorporated by reference to Exhibit 10.1 to the Martin Marietta Materials, Inc., Current Report on Form 8-K filed on December 22, 2022) (Commission File No. 1-12744)

Exhibit 10.1 LOAN MODIFICATION NO. 1 AND EXTENSION AGREEMENT LOAN MODIFICATION NO. 1 AND EXTENSION AGREEMENT dated as of December 22, 2022 (this ?Agreement?) among Martin Marietta Materials, Inc., a North Carolina corporation (the ?Borrower?), the Lenders (as defined below) party hereto and JPMorgan Chase Bank, N.A. (?JPMCB?), as administrative agent (in such capacity, the ?Administrative Agent?).

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 12, 2022 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporatio

RESTATED BYLAWS OF MARTIN MARIETTA MATERIALS, INC.

February 22, 2018 November 10, 2022 RESTATED BYLAWS OF MARTIN MARIETTA MATERIALS, INC.

Article 1 of the Company’s Restated Bylaws, as amended (incorporated by reference to Exhibit 3.1 to the Martin Marietta Materials, Inc. Current Report on Form 8-K, filed on November 14, 2022) (Commission File No. 1-12744)

Exhibit 3.1 November 10, 2022 RESTATED BYLAWS OF MARTIN MARIETTA MATERIALS, INC. (Incorporated under the laws of North Carolina, November 12, 1993, and herein referred to as the ?Corporation?) ARTICLE I. SHAREHOLDERS Section 1.01. ANNUAL MEETINGS. The Corporation shall hold an annual meeting of the shareholders for the election of directors and the transaction of any business within the powers of

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 10, 2022 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporatio

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, James A. J. Nickolas, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary

MARTIN MARIETTA REPORTS THIRD-QUARTER 2022 RESULTS Achieved Record Quarterly Revenues and Gross Profit Driven by Double-Digit Pricing Growth Across All Building Materials’ Product Lines Pricing Momentum Expected to Drive Margin Expansion in Fourth Qu

Exhibit 99.1 MARTIN MARIETTA REPORTS THIRD-QUARTER 2022 RESULTS Achieved Record Quarterly Revenues and Gross Profit Driven by Double-Digit Pricing Growth Across All Building Materials? Product Lines Pricing Momentum Expected to Drive Margin Expansion in Fourth Quarter Updates Full-Year 2022 Guidance RALEIGH, N.C. (November 2, 2022) ? Martin Marietta Materials, Inc. (NYSE: MLM) (?Martin Marietta? o

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.02 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended September 30, 2022 (the ?Report?) of Martin Marietta Materials, Inc. (the ?Registrant?), as filed with the Securities and Exchange Commission on the date hereof, I, James A. J. Nickolas, the Chief

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.01 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended September 30, 2022 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, C. Howard Nye, the Chief Executi

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 02, 2022 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporatio

MINE SAFETY DISCLOSURES

Appendix 1 EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company?s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act).

Termination of a Material Definitive Agreement, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 29, 2022 Martin Marietta Materials, Inc. (Exact name of registrant as specified in its charter) North Carolina 001-12744 56-1848578 (State or other jurisdiction of incorpora

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): September 21, 2022 Martin Marietta Materials, Inc.

Fourteenth Amendment to Credit Agreement, dated as of September 21, 2022, among Martin Marietta Funding LLC, as borrower, Martin Marietta Materials, Inc., as servicer, and Truist Bank, successor by merger to SunTrust Bank, as lender together with the other lenders from time to time party thereto, and Truist Bank, successor by merger to Sun Trust Bank, as administrative agent for the lenders (including a conformed copy of the Credit Agreement attached as Exhibit A thereto) (incorporated by reference to Exhibit 10.01 to the Martin Marietta Materials, Inc. Current Report on Form 8-K filed on September 21, 2022) (Commission File No. 1-12744)

Exhibit 10.01 Fourteenth Amendment to Credit and Security Agreement This Fourteenth Amendment to Credit and Security Agreement (herein, the ?Amendment?) is entered into as of September 21, 2022 (the ?Effective Date?), among Martin Marietta Funding LLC, a Delaware limited liability company (?Borrower?), Martin Marietta Materials, Inc., a North Carolina corporation, as initial Servicer (the ?Service

LETTER

United States securities and exchange commission logo September 12, 2022 James A. J. Nickolas Senior Vice President and Chief Financial Officer Martin Marietta Materials Inc. 2710 Wycliff Road Raleigh, North Carolina Re: Martin Marietta Materials Inc. Form 10-K for the Fiscal Year Ended December 31, 2021 Filed February 22, 2022 File No. 001-12744 Dear Mr. Nickolas: We have completed our review of

COMMENT AND RESPONSE

CORRESP 1 filename1.htm James A. J. Nickolas Senior Vice President and Chief Financial Officer August 24, 2022 VIA EDGAR U. S. Securities and Exchange Commission Division of Corporate Finance Office of Energy & Transportation Washington, D.C. 20549 Attention: Ken Schuler Craig Arakawa Re: Martin Marietta Materials, Inc. Form 10-K for the Year Ended December 31, 2021 Filed February 22, 2022 File No

Mine Safety - Reporting of Shutdowns and Patterns of Violations

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2022 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (

August 4, 2022

James A. J. Nickolas Senior Vice President and Chief Financial Officer August 4, 2022 VIA EDGAR U. S. Securities and Exchange Commission Division of Corporate Finance Office of Energy & Transportation Washington, D.C. 20549 Attention: Ken Schuler Craig Arakawa Re: Martin Marietta Materials, Inc. Form 10-K for the Year Ended December 31, 2021 Filed February 22, 2022 File No. 001-12744 Dear Messrs.

LETTER

United States securities and exchange commission logo August 3, 2022 James A. J. Nickolas Senior Vice President and Chief Financial Officer Martin Marietta Materials Inc. 2710 Wycliff Road Raleigh, North Carolina Re: Martin Marietta Materials Inc. Form 10-K for the Fiscal Year Ended December 31, 2021 Filed February 22, 2022 File No. 001-12744 Dear Mr. Nickolas: We have reviewed your July 11, 2022

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.01 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended June 30, 2022 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, C. Howard Nye, the Chief Executive Of

Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EXHIBIT 32.02 Written Statement Pursuant to 18 U.S.C. 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Quarterly Report on Form 10-Q for the period ended June 30, 2022 (the “Report”) of Martin Marietta Materials, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, James A. J. Nickolas, the Chief Finan

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.02 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, James A. J. Nickolas, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary

CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.01 CERTIFICATION PURSUANT TO SECURITIES AND EXCHANGE ACT OF 1934 RULE 13a-14 AS ADOPTED PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002 I, C. Howard Nye, certify that: 1. I have reviewed this Form 10-Q of Martin Marietta Materials, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-12744 MARTIN MARIETTA MATERIALS, INC.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2022 Martin Marietta Materials, Inc. (Exact name of Registrant as Specified in Its Charter) North Carolina 1-12744 56-1848578 (State or Other Jurisdiction of Incorporation) (

MINE SAFETY DISCLOSURES

EXHIBIT 95 MINE SAFETY DISCLOSURES The operation of the Company?s domestic aggregates quarries and mines is subject to regulation by the federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act).

MARTIN MARIETTA REPORTS SECOND-QUARTER 2022 RESULTS Achieved Record Quarterly Revenues and Adjusted EBITDA Driven by Robust Pricing, Acquisitions and Product Demand Portfolio Optimization Transactions Reinforce Aggregates-Led Business Model Updated F

Exhibit 99.1 MARTIN MARIETTA REPORTS SECOND-QUARTER 2022 RESULTS Achieved Record Quarterly Revenues and Adjusted EBITDA Driven by Robust Pricing, Acquisitions and Product Demand Portfolio Optimization Transactions Reinforce Aggregates-Led Business Model Updated Full-Year 2022 Guidance RALEIGH, N.C. (July 28, 2022) ? Martin Marietta Materials, Inc. (NYSE: MLM) (?Martin Marietta? or the ?Company?),

COMMENT AND RESPONSE

James A. J. Nickolas Senior Vice President and Chief Financial Officer July 11, 2022 VIA EDGAR U. S. Securities and Exchange Commission Division of Corporate Finance Office of Energy & Transportation Washington, D.C. 20549 Attention: Ken Schuler Craig Arakawa Re: Martin Marietta Materials, Inc. Form 10-K for the Year Ended December 31, 2021 Filed February 22, 2022 File No. 001-12744 On behalf of M

LETTER

United States securities and exchange commission logo June 27, 2022 James A. J. Nickolas Senior Vice President and Chief Financial Officer Martin Marietta Materials Inc. 2710 Wycliff Road Raleigh, North Carolina Re: MARTIN MARIETTA MATERIALS INC Form 10-K for the Fiscal Year Ended December 31, 2021 Filed February 22, 2022 File No. 001-12744 Dear Mr. Nickolas: We have reviewed your June 14, 2022 re

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 1-12744 MARTIN MARIETTA SAVINGS and INVESTMENT PLAN (Full tit

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EXHIBIT 23.01 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the Registration Statement (Forms S-8 No. 333-115918 and No. 333-15429) pertaining to the Amended and Restated Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors, and the Martin Marietta Savings and Investment Plan (formerly the Martin Marietta Materials, Inc

COMMENTS AND RESPONSES

James A. J. Nickolas Senior Vice President and Chief Financial Officer June 14, 2022 VIA EDGAR U. S. Securities and Exchange Commission Division of Corporate Finance Office of Energy & Transportation Washington, D.C. 20549 Attention: Ken Schuler Craig Arakawa Re: Martin Marietta Materials, Inc. Form 10-K for the Year Ended December 31, 2021 Filed February 22, 2022 File No. 001-12744 On behalf of M