0000950170-24-107631.txt : 20240918 0000950170-24-107631.hdr.sgml : 20240918 20240918101535 ACCESSION NUMBER: 0000950170-24-107631 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 11 CONFORMED PERIOD OF REPORT: 20240912 ITEM INFORMATION: Mine Safety - Reporting of Shutdowns and Patterns of Violations FILED AS OF DATE: 20240918 DATE AS OF CHANGE: 20240918 FILER: COMPANY DATA: COMPANY CONFORMED NAME: MARTIN MARIETTA MATERIALS INC CENTRAL INDEX KEY: 0000916076 STANDARD INDUSTRIAL CLASSIFICATION: MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400] ORGANIZATION NAME: 01 Energy & Transportation IRS NUMBER: 561848578 STATE OF INCORPORATION: NC FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-12744 FILM NUMBER: 241306416 BUSINESS ADDRESS: STREET 1: 4123 PARKLAKE AVE CITY: RALEIGH STATE: NC ZIP: 27612 BUSINESS PHONE: 919-781-4550 MAIL ADDRESS: STREET 1: 4123 PARKLAKE AVE CITY: RALEIGH STATE: NC ZIP: 27612 8-K 1 mlm-20240912.htm 8-K 8-K
false000091607600009160762024-09-122024-09-12

 

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 Incorporation)

(Commission File Number)

(IRS Employer
Identification No.)

 

 

 

 

 

4123 Parklake Avenue

 

Raleigh, North Carolina

 

27612

(Address of Principal Executive Offices)

 

(Zip Code)

 

Registrant’s Telephone Number, Including Area Code: 919 781-4550

 

 

(Former Name or Former Address, if Changed Since Last Report)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class

 

Trading
Symbol(s)

 


Name of each exchange on which registered

Common Stock, $.01 par value per share

 

MLM

 

The New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

 


Item 1.04 Mine Safety – Reporting of Shutdowns and Patterns of Violations.

On September 12, 2024, the Company received a section 107(a) order issued by the Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977 at its North Indianapolis Quarry in Indianapolis, Indiana. The order stated that a utility person was observed standing on the motor of an elevated screen deck, which exposed the miner to a fatal fall to the ground below. Corrective action was taken, and no one was injured in the cited incident. The order has been terminated.


 

 


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

 

 

MARTIN MARIETTA MATERIALS, INC.

 

 

 

(Registrant)

 

 

 

 

Date:

September 18, 2024

By:

/s/ Roselyn R. Bar

 

 

 

Roselyn R. Bar,
Executive Vice President and General Counsel

 


EX-101.SCH 2 mlm-20240912.xsd XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT 100000 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink Cover [Abstract] Amendment Flag City Area Code Document Period End Date Document Type Entity Address, Address Line One Entity Address, City or Town Entity Address, Postal Zip Code Entity Address, State or Province Entity Central Index Key Entity Emerging Growth Company Entity File Number Entity Incorporation, State or Country Code Entity Registrant Name Entity Tax Identification Number Local Phone Number Pre-commencement Issuer Tender Offer Pre-commencement Tender Offer Title of 12(b) Security Security Exchange Name Soliciting Material Trading Symbol Written Communications XML 4 R1.htm IDEA: XBRL DOCUMENT v3.24.3
Document And Entity Information
Sep. 12, 2024
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 12, 2024
Entity Registrant Name Martin Marietta Materials, Inc.
Entity Central Index Key 0000916076
Entity Emerging Growth Company false
Entity File Number 1-12744
Entity Incorporation, State or Country Code NC
Entity Tax Identification Number 56-1848578
Entity Address, Address Line One 4123 Parklake Avenue
Entity Address, City or Town Raleigh
Entity Address, State or Province NC
Entity Address, Postal Zip Code 27612
City Area Code 919
Local Phone Number 781-4550
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $.01 par value per share
Trading Symbol MLM
Security Exchange Name NYSE
EXCEL 5 Financial_Report.xlsx IDEA: XBRL DOCUMENT begin 644 Financial_Report.xlsx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end XML 6 Show.js IDEA: XBRL DOCUMENT // Edgar(tm) Renderer was created by staff of the U.S. Securities and Exchange Commission. Data and content created by government employees within the scope of their employment are not subject to domestic copyright protection. 17 U.S.C. 105. var Show={};Show.LastAR=null,Show.showAR=function(a,r,w){if(Show.LastAR)Show.hideAR();var e=a;while(e&&e.nodeName!='TABLE')e=e.nextSibling;if(!e||e.nodeName!='TABLE'){var ref=((window)?w.document:document).getElementById(r);if(ref){e=ref.cloneNode(!0); e.removeAttribute('id');a.parentNode.appendChild(e)}} if(e)e.style.display='block';Show.LastAR=e};Show.hideAR=function(){Show.LastAR.style.display='none'};Show.toggleNext=function(a){var e=a;while(e.nodeName!='DIV')e=e.nextSibling;if(!e.style){}else if(!e.style.display){}else{var d,p_;if(e.style.display=='none'){d='block';p='-'}else{d='none';p='+'} e.style.display=d;if(a.textContent){a.textContent=p+a.textContent.substring(1)}else{a.innerText=p+a.innerText.substring(1)}}} XML 7 report.css IDEA: XBRL DOCUMENT /* Updated 2009-11-04 */ /* v2.2.0.24 */ /* DefRef Styles */ ..report table.authRefData{ background-color: #def; border: 2px solid #2F4497; font-size: 1em; position: absolute; } ..report table.authRefData a { display: block; font-weight: bold; } ..report table.authRefData p { margin-top: 0px; } ..report table.authRefData .hide { background-color: #2F4497; padding: 1px 3px 0px 0px; text-align: right; } ..report table.authRefData .hide a:hover { background-color: #2F4497; } ..report table.authRefData .body { height: 150px; overflow: auto; width: 400px; } ..report table.authRefData table{ font-size: 1em; } /* Report Styles */ ..pl a, .pl a:visited { color: black; text-decoration: none; } /* table */ ..report { background-color: white; border: 2px solid #acf; clear: both; color: black; font: normal 8pt Helvetica, Arial, san-serif; margin-bottom: 2em; } ..report hr { border: 1px solid #acf; } /* Top labels */ ..report th { background-color: #acf; color: black; font-weight: bold; text-align: center; } ..report th.void { background-color: transparent; color: #000000; font: bold 10pt Helvetica, Arial, san-serif; text-align: left; } ..report .pl { text-align: left; vertical-align: top; white-space: normal; width: 200px; white-space: normal; /* word-wrap: break-word; */ } ..report td.pl a.a { cursor: pointer; display: block; width: 200px; overflow: hidden; } ..report td.pl div.a { width: 200px; } ..report td.pl a:hover { background-color: #ffc; } /* Header rows... */ ..report tr.rh { background-color: #acf; color: black; font-weight: bold; } /* Calendars... */ ..report .rc { background-color: #f0f0f0; } /* Even rows... */ ..report .re, .report .reu { background-color: #def; } ..report .reu td { border-bottom: 1px solid black; } /* Odd rows... */ ..report .ro, .report .rou { background-color: white; } ..report .rou td { border-bottom: 1px solid black; } ..report .rou table td, .report .reu table td { border-bottom: 0px solid black; } /* styles for footnote marker */ ..report .fn { white-space: nowrap; } /* styles for numeric types */ ..report .num, .report .nump { text-align: right; white-space: nowrap; } ..report .nump { padding-left: 2em; } ..report .nump { padding: 0px 0.4em 0px 2em; } /* styles for text types */ ..report .text { text-align: left; white-space: normal; } ..report .text .big { margin-bottom: 1em; width: 17em; } ..report .text .more { display: none; } ..report .text .note { font-style: italic; font-weight: bold; } ..report .text .small { width: 10em; } ..report sup { font-style: italic; } ..report .outerFootnotes { font-size: 1em; } XML 9 FilingSummary.xml IDEA: XBRL DOCUMENT 3.24.3 html 1 22 1 false 0 0 false 0 false false R1.htm 100000 - Document - Document And Entity Information Sheet http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation Document And Entity Information Cover 1 false false All Reports Book All Reports mlm-20240912.htm mlm-20240912.xsd http://xbrl.sec.gov/dei/2024 false false JSON 11 MetaLinks.json IDEA: XBRL DOCUMENT { "version": "2.2", "instance": { "mlm-20240912.htm": { "nsprefix": "mlm", "nsuri": "http://martinmarietta.com/20240912", "dts": { "inline": { "local": [ "mlm-20240912.htm" ] }, "schema": { "local": [ "mlm-20240912.xsd" ], "remote": [ "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd", "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd", "http://www.xbrl.org/2003/xl-2003-12-31.xsd", "http://www.xbrl.org/2003/xlink-2003-12-31.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd", "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd", "https://www.xbrl.org/dtr/type/2022-03-31/types.xsd", "https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd", "https://xbrl.fasb.org/srt/2024/elts/srt-roles-2024.xsd", "https://xbrl.fasb.org/srt/2024/elts/srt-types-2024.xsd", "https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd", "https://xbrl.fasb.org/us-gaap/2024/elts/us-roles-2024.xsd", "https://xbrl.fasb.org/us-gaap/2024/elts/us-types-2024.xsd", "https://xbrl.sec.gov/country/2024/country-2024.xsd", "https://xbrl.sec.gov/dei/2024/dei-2024.xsd", "https://xbrl.sec.gov/stpr/2024/stpr-2024.xsd" ] } }, "keyStandard": 22, "keyCustom": 0, "axisStandard": 0, "axisCustom": 0, "memberStandard": 0, "memberCustom": 0, "hidden": { "total": 2, "http://xbrl.sec.gov/dei/2024": 2 }, "contextCount": 1, "entityCount": 1, "segmentCount": 0, "elementCount": 23, "unitCount": 0, "baseTaxonomies": { "http://xbrl.sec.gov/dei/2024": 22 }, "report": { "R1": { "role": "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation", "longName": "100000 - Document - Document And Entity Information", "shortName": "Document And Entity Information", "isDefault": "true", "groupType": "document", "subGroupType": "", "menuCat": "Cover", "order": "1", "firstAnchor": { "contextRef": "C_626eb7f3-263a-47ee-8b73-1be4903d111a", "name": "dei:DocumentType", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "body", "html" ], "reportCount": 1, "baseRef": "mlm-20240912.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_626eb7f3-263a-47ee-8b73-1be4903d111a", "name": "dei:DocumentType", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "body", "html" ], "reportCount": 1, "baseRef": "mlm-20240912.htm", "first": true, "unique": true } } }, "tag": { "dei_AmendmentFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "AmendmentFlag", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Amendment Flag", "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission." } } }, "auth_ref": [] }, "dei_CityAreaCode": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "CityAreaCode", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "City Area Code", "documentation": "Area code of city" } } }, "auth_ref": [] }, "dei_CoverAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "CoverAbstract", "lang": { "en-us": { "role": { "label": "Cover [Abstract]", "documentation": "Cover page." } } }, "auth_ref": [] }, "dei_DocumentPeriodEndDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "DocumentPeriodEndDate", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Document Period End Date", "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD." } } }, "auth_ref": [] }, "dei_DocumentType": { "xbrltype": "submissionTypeItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "DocumentType", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Document Type", "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'." } } }, "auth_ref": [] }, "dei_EntityAddressAddressLine1": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "EntityAddressAddressLine1", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Entity Address, Address Line One", "documentation": "Address Line 1 such as Attn, Building Name, Street Name" } } }, "auth_ref": [] }, "dei_EntityAddressCityOrTown": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "EntityAddressCityOrTown", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Entity Address, City or Town", "documentation": "Name of the City or Town" } } }, "auth_ref": [] }, "dei_EntityAddressPostalZipCode": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "EntityAddressPostalZipCode", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Entity Address, Postal Zip Code", "documentation": "Code for the postal or zip code" } } }, "auth_ref": [] }, "dei_EntityAddressStateOrProvince": { "xbrltype": "stateOrProvinceItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "EntityAddressStateOrProvince", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Entity Address, State or Province", "documentation": "Name of the state or province." } } }, "auth_ref": [] }, "dei_EntityCentralIndexKey": { "xbrltype": "centralIndexKeyItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "EntityCentralIndexKey", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Entity Central Index Key", "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK." } } }, "auth_ref": [ "r1" ] }, "dei_EntityEmergingGrowthCompany": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "EntityEmergingGrowthCompany", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Entity Emerging Growth Company", "documentation": "Indicate if registrant meets the emerging growth company criteria." } } }, "auth_ref": [ "r1" ] }, "dei_EntityFileNumber": { "xbrltype": "fileNumberItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "EntityFileNumber", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Entity File Number", "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen." } } }, "auth_ref": [] }, "dei_EntityIncorporationStateCountryCode": { "xbrltype": "edgarStateCountryItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "EntityIncorporationStateCountryCode", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Entity Incorporation, State or Country Code", "documentation": "Two-character EDGAR code representing the state or country of incorporation." } } }, "auth_ref": [] }, "dei_EntityRegistrantName": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "EntityRegistrantName", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Entity Registrant Name", "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC." } } }, "auth_ref": [ "r1" ] }, "dei_EntityTaxIdentificationNumber": { "xbrltype": "employerIdItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "EntityTaxIdentificationNumber", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Entity Tax Identification Number", "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS." } } }, "auth_ref": [ "r1" ] }, "dei_LocalPhoneNumber": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "LocalPhoneNumber", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Local Phone Number", "documentation": "Local phone number for entity." } } }, "auth_ref": [] }, "dei_PreCommencementIssuerTenderOffer": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "PreCommencementIssuerTenderOffer", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Pre-commencement Issuer Tender Offer", "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act." } } }, "auth_ref": [ "r3" ] }, "dei_PreCommencementTenderOffer": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "PreCommencementTenderOffer", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Pre-commencement Tender Offer", "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act." } } }, "auth_ref": [ "r5" ] }, "dei_Security12bTitle": { "xbrltype": "securityTitleItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "Security12bTitle", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Title of 12(b) Security", "documentation": "Title of a 12(b) registered security." } } }, "auth_ref": [ "r0" ] }, "dei_SecurityExchangeName": { "xbrltype": "edgarExchangeCodeItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "SecurityExchangeName", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Security Exchange Name", "documentation": "Name of the Exchange on which a security is registered." } } }, "auth_ref": [ "r2" ] }, "dei_SolicitingMaterial": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "SolicitingMaterial", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Soliciting Material", "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act." } } }, "auth_ref": [ "r4" ] }, "dei_TradingSymbol": { "xbrltype": "tradingSymbolItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "TradingSymbol", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Trading Symbol", "documentation": "Trading symbol of an instrument as listed on an exchange." } } }, "auth_ref": [] }, "dei_WrittenCommunications": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2024", "localname": "WrittenCommunications", "presentation": [ "http://martinmarietta.com/20240912/taxonomy/role/DocumentDocumentAndEntityInformation" ], "lang": { "en-us": { "role": { "label": "Written Communications", "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act." } } }, "auth_ref": [ "r6" ] } } } }, "std_ref": { "r0": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "b" }, "r1": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "b-2" }, "r2": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "d1-1" }, "r3": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "13e", "Subsection": "4c" }, "r4": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "14a", "Subsection": "12" }, "r5": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "14d", "Subsection": "2b" }, "r6": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Securities Act", "Number": "230", "Section": "425" } } } ZIP 12 0000950170-24-107631-xbrl.zip IDEA: XBRL DOCUMENT begin 644 0000950170-24-107631-xbrl.zip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�D6&NH+I\ :Q4"81<;;Y!Y1%J.@)53248.7!5(]N6(^FET*% M6%0Q"2Q["HT%57;=I-VG)J0\-" /58K!'\N&!4!S(_AN"1DQC :P2-4 L)+0 M02Y:N1A0"39MZ==![[+N^BK.XS!.P*9NU;6K2E"+W_)4W?F?=[5C"87@SD[W M59FT>KEG+L$U@(5#*>C7EOX7JQ5+PR!@,5\)\.T93:J&4*)( MXA'$]S3Y-"%\8&@S\%TR]@>0K(XVGT.,.JX&)'4NE%^/MNMG0<%W$7F!Q)4* MV$E=+/B'UGP5^PR=*HR >AYXTN!$"VQ;U,*! SHU"B,:1JX9>B9=EDX]TV[9 M4>FL;:$RL+*_%=\4+0YO!_Q=K/5;Y/]8)^%/7[JM[OB\QPZ?[OW5"FO8"5[44^YU[H MX,"B'K9)%&%?D!!'1N0):MA.X'B+2H0R*'8ILDG86W[Z(:"=:16N=1G]>HB MFJ/N0# 5%^0($-LI]J\,Z=G&-L/E#W< MT'^@T"8O;,$#$M0Z[&]96Z]OS3].Z3U#RUG"\QUNF]@V3!?;CNWAP&XC= FBPG0W30H[:&9^T@M6^IMKV*,1 9E>JGY6: MOR?@3_10FTH0?2E]@NF['H[>RD@C8L(+?"WG2J#5&FV7_EB^VX&,27[WC^,US9&7K%6U>U4MJJJR.N%PT! M;6NUH.*/IT5/2/37H8QS'NO I-XE!'-Z0HU\6"7;?E^H;6?]?IRK+#JDQ"TJ M67"#P$14?]09*-A-3$."G2T$G6F(G-65+E.XDQ?W.%YJ_)4MRCMZ:I M-^C8H&.#CC5#QR::L#R7PO5-TW8#$UN$"FP3[N/ M3@6KLNX$!%SN+\YBF\+J!4Y(,'=@E4Q/,-M<4CBV6D+M<9_* M,YE=Q?K4RB8.^](;1Z]IW970OVVQ1VT1131RL6\X0/^1P3$EH8L)N=B=0QA>JXZV[&)7[Z9&%%%(&K;_TR"/(T'-$%'-X(- MU=$8=!I%,1/Y2H-NWXE=N(E!SJ(OD#E("9T' XTS,_%>7^2;S='%V(1 QZ65IOC.@,MV2H4(H.81TTV[46\3:> M ^A2?0LC,'W+%B'F(3>P;;HVIB%UL,>%[]@>Y1$J=*W8,@I(L )_ M\-57R#(^_% MW),^WU3*S;MH$-2@,PAR/NA0O'V_\AXP)0K!*P MAFF5+93?#[2'69:$%,BB .)<9*(_OPL\V][]EM7UJK16X00P.XX4-!@[D'P^ M!,/(-IV*>:8.(JOSQ]O$0^U/Y\BTC 94O%,#,^ZP>08%NV^#@OV(>H%+,+$L M6UU2Q7!@4XH]F[FNYQ$GH L?7.V"5F. ]_2R/@'V@Y/O'4)0O\+(?=HE-L7$ M'"/?BD8$(/9&&:^*8^)S;&Y'7YX'%67=7],NG89 M]PDE(39(!#1JVC8.!&/8I&[@>HX%YL7"H0$MVDPZW89+3PJ)PA0VGH#X3#KH6.I M#QUV)3<-ZR&6T#Q? MSA[V?%2C=Y'^,ZQ-\M*&..<@]D)2A;+RWLU1'SK;7E:RR88R-Y2YJ-@\J6Y$ MT5)3U(856 4P.+RY,QU>+E'\QTD.MTSA<&Z&F/' 4LGA-O:%:V$K9-2 %3'! M5UDX3E3:@2-BAEI%/IWBYD;QP7('0ND6&?NZ@_X'E@B!:8>N:#(4:*"NZ.Y1 M^>0C&>N4;O>VA-N;9@5"O""*.,'4=!QL6\Q5]^T(C]?\R^;74"K>1FM5G&]V[='=!#GC!D%@GY2K\ M)5 X0DSOC .L7\$ $_K"C:EMZSA' *4 !%ZJK8Y+F5T7/15%&ZBM;)HC+J(X M+>^R*[?K#&?&I<%W=P5;:%LQJ+>K\BZM8%?OW-5M8#18P8&Z#$]E@)01.3!8 MS$?>0SS=MPK2W34?Z[VQ9AOMJ[V%^Y4I[F@.]7SC?GPUYKQ[BTPSBGR#89\' M#-LN"#5J,!\+S_9\@WC49 NK[_*\3PW[9PUZNX3\]8/J/P#5=*('),\.R)N9 M8BR^EWC3 R$E$L$*$%)IID/1PUSH6C#7*KU'?=U*?\0&E1_,40NLQTI&:O#K M&(96))L"XJ!$BJLXAW;1[>?;*&/J*CM567W\BU/)\S*QA\^+@UO;]#8./B[, M&H]AC*=1T8HNRIR,;\S^JL\Z9=JJ34<=JE7FWZ7 :<9%W0;@FOV]HR@1-YC' MLEPVM5[]2?%5.G]3R+]:Y@7<32J^]:U,)#: ]]*NML\ZLD[&Q6 +*,6 M- *UU:+)-1WEU<; DK_/]("Q,_V]CA=+_INW4[58HFFG$'U$&H:-CM77(+LT M$L4(Z7,@9+=**-7Y?!'J]H8%SZY3905Q=$8+6(54'^[[>YPEY29B8]5L-H;, MBK 6$\MD$>2=INC^9?$[6HA5VA&D(Q- 9AQ1E-?"SO"TM%/R FS*? BE89D\ M.;X&"LF_"IJ M#WD (&6X;J#;;4\IK%[W/WU4/\DN^-[M)\$_ (Q/*^SVD3T M/$3!J"T W?JHN3*&:4H'60+&X=^&5,J1OI5Y[/5._=1 2/D(&&%ANG_QK*TGA7/;&XT ],?[MN8KY*BX8*1& @$8! M_8;H?HX<68@15O7-LH6 6HL+LE\3 <]PK)9-E!N39OU-FJ>L>77Z8;W3;SJ? M3PXO?C\_ZJZ6_N_CXI6]Q/'O5Y6.W[^'0-@JURM_9-!H9Y;'R(<)^)5T6&K@ M.*\^.J2&"07*8>90 +I5F1*AZ-$DJNT9;914%7I""O *L[([.BQZF80YWU.= MZYCSY#Z4G60_5/A0F;M.:4WKLM7Q'5S@N)GK6L_5;CSM SME_26)^>?(]>/# M\XO."8+_.D<7%X?PX^+HO'/XI0ONV$F[L:;I(1O"V\QU,]>5.8S/.E5^=]/+ M*NYFWTB*S5PW<_WN,H7>C"WQ5,/N566Q^MAM:YW-WE?%SMBVBC_U#=X-JB91 M]YA6]F1@.]PG9IY$X#*13)*T7D#_4+EFQ:V&[6]F>N;GVO#>]K)XZ5& M_)]U5>>$ -E!>N/U[D;EO\=,H#,IX/XM49P.HKXM"VW6X;VV3^[3, MC<*]9ICQT<%/>\U>T4\._@M02P,$% @ \5$R6?*;\E%F" 5ET ! M !M;&TM,C R-# Y,3(N>'-D[5Q;;]LV&'W?K^#4EQ:K+-EIM\2H4WA),QA+ MFR!.L6+#4,@2;1.52(^2$OO?CY1$72G9L2/)#MR'Q)$^'IXC7L3OE/2'CTO' M!@^0NHC@@=+MZ J V"06PK.!\G6L#L<7HY'R\?RG#S^K*KB\>!7^ C&)H> M>H"7R#5MXOH4@M?CSV_ M]_OKL'8G$/' )?$]!V(/:""N>!#T>WKOG:J?J=W3^Z[>U]_U=;USJI^> M_J*SO_14,;)8432;>^"U^0;P4JQNC*%MK\ 5P@8VD6&#L:CT+1AALP.&M@WN M>"D7W$$7T@=H=4+,I6OUW5"#9] 9]+X8#G07A@D'2J3$,:B',/N)H.<9@0Q> MKW[6[2G \#R*)KX'KPAU+N'4\&UOH/CX/]^PT11!BSUA&_)'DPE(W69-@MT^ MQ+[3BZM<3JC=(73&*](UN/0@=M'$ABH/@S1X<*[:X^T7%F1,7U MKO;M\W782B+81OA')CI5G7ZB\=L3PX4BW'?5F6$LXA)3PYT$T=&-X&F(8 NB MK H7FIT9>=#8C4P@OVEY,L7Z>RV\F0Y%%819)_-8P\>$EP6!T>/HGIV=:<%= M$>K8SD;M?/X3 $%?0::F$%35'#C?ZF"H,HOJ=V>>M+M,# %X$)G MJU"G[49"-.M6).(^L2T)T::\]O=E]4H[P48UNF7=C7]0^8?*.@N=]&F52D>$ M!FW/%5$5=HVW4)\2&]ZO%A#P#U_O1IOT M;?%Y3-]SA\>M?L0E0X M"JDH:!JVZ=M/+Y?0*BT6712-E6U",=*"1VRSF2I?&2]V!Z>U-W$P3_;G%$X' M"ILF50'&>_&KS=L^PO&8T('BLM%D1Y-(1K0Q@39_7E$TIUDQ&P4JHFD\1$<> M+Q##9&L-WI\6>]83S"OVQ_<+PE98PXGK46P;9'DONZ'W MY!&OHYJ*;(/H+6$+0?MOM"@9+A7!;= =LY23@?WBCE"S9: MJ&&/V%MB^2=C.=2JFN+=(.]2>1;H'N&)H^97VQVYO<\YQ"0K(0TC"U3TMS;N 9 M+!GWTK"F*!(;F2SWQ;//;&ZDR+!E!(M!#=&[IP9WNL3D<3*2O RW-]DG;NM#K'X=9Q-BMMXB/I6NR3+)Z7=[$C^G MC5)RCJ.?FV\F;]V2;XP!.$B=;-,9[;8/E[MA' -PD#K) M2E/<+5G'EEX(!AA:\!\_3?#G:?"NM#E&G5Q+4^(MB4>N:83T5GP '!/Z\G;X! ;8)YVJ+8DKV @*K M]LFI:%]L2ST& @*I3MX9GH30IYQ;+VT273MU@3!NMJ$V1L)Q0T+4@$Y MYV5OZ$NW,4@5%%V7O1%1LKE!*D-FN+0OI&3+0U:!S&)IGWKE1HBL@'*/I7T9 MQ>T16>XY3Z5]PAMMFLAJ6&^QM"]+OI4BJT/BI+1/?,T&BZR"*CNE32EEVRX$ M>ZEYTB;A33=C" $;&2E[)&AS*?LDHFSCAJ N=4OV@;!L.T>>=,$H:95XZ2:/ MF+;<(FF3M'3KA^!;M$;:I%JY(410+O='TFDZ5 M1.3RV<3RV<3RV41OIX[&- MX[&-X[&-W2@>CVVT?VPCG0L_B\VP,"C#4\TYLJTG[CO(99V$LO$\4+JZWM7Y M5PXM6.[$^^I Z2G =QD9LN"TY5UBGX1E,]=85_?DP'65I+])P_5>B, P=4YT MZ0>NJR+_3D2>O221Z;P]&8 OJAUS&7^B\M!'8;51D.@\]-=$B;N0C,AW+T)@ MB3.1R'S_(F2F_8Q$VZ\O0ML:0R21^]N+D)NW3Q)]A[Z"6^.])$)/#UQHT:]) MWAN'/JVN-WP2K8>^J*MRB!*5A]Y;B\92K*UWZ*L:Y+Z)E?_@W[D:?;VNEOM^W>A"ZEMX MPROA=P*?_P]02P$"% ,4 " #Q43)95*RZV_X1 BE@ $ M @ $ ;6QM+3(P,C0P.3$R+FAT;5!+ 0(4 Q0 ( /%1,EGRF_)1 M9@@ %9= 0 " 2P2 !M;&TM,C R-# Y,3(N>'-D4$L% 3!@ " ( ? , : $! end XML 13 mlm-20240912_htm.xml IDEA: XBRL DOCUMENT 0000916076 2024-09-12 2024-09-12 false 0000916076 8-K 2024-09-12 Martin Marietta Materials, Inc. NC 1-12744 56-1848578 4123 Parklake Avenue Raleigh NC 27612 919 781-4550 false false false false Common Stock, $.01 par value per share MLM NYSE false