Published mark
Martin Marietta Materials
MARTIN MARIETTA MATERIALS INC
NYSE: MLM. Canonical company identity and public leadership record.
US
Record source reportedRecord not claimedNo Eval published
- Alpha ID
- alpha:company:55a83041-1c79-49fa-b492-407fc762ab03
- SEC CIK
- 0000916076
- Website
- www.martinmarietta.com Open
- Record version
- vpublic-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce, published Oct 15, 2026
- Newest evidence
- May 3, 2026
- Monitoring
- Not yet monitored Details
- Integrity
- Not yet signed Methodology
- CEO
- C. Howard NyeSince Apr 15, 2026
- Chair
- Not published
- Independent
- Not published2 directors published
- Published claims
- 516 distinct sources
- Evidence records
- 240 pinned
- Source conflicts
- 0None open
Built from 6 distinct sources and 24 evidence records. Every Claim links to where it appears. Where nothing was published, the record states the coverage gap.
CorroboratedSource reportedAlpha inferenceNot disclosed
Public record. Alpha publishes governance facts about this organization from regulatory filings and company statements. Private enterprise overlay data is never projected here. The company can claim the record, correct, or dispute any Claim. How this works
DIRECTOR APPOINTED
Gayla J. Delly seat on Martin Marietta Materials, effective 2026-04-15.
EffectiveEffective Apr 15, 2026E8
Monitoring
ContinuousWhat the published record states about identity, evidence, evaluation, monitoring, authority, and freshness. Watched-source schedules are not published for this record.
- IdentityunclaimedPublished
- Evidencesource_reportedPublished
- Evaluationnot_evaluatedPublished
- MonitoringNot yet published for this record.Not published
- AuthorityNot yet published for this record.Not published
- FreshnesscurrentPublished
Leadership
Evidence| Role | Person | Since | Status | Claim |
|---|---|---|---|---|
| Named Executive Officer | Bradley D. Kohn | Apr 2026 | current | Source reportedE15 |
| President and Chief Executive Officer | C. Howard Nye | Apr 2026 | current | Source reportedE16 |
| Named Executive Officer | Donald A. McCunniff | Apr 2026 | current | Source reportedE17 |
| Named Executive Officer | James A.J. Nickolas | Apr 2026 | current | Source reportedE18 |
| Named Executive Officer | Jason P. Flynn | Apr 2026 | current | Source reportedE19 |
| Named Executive Officer | Michael J. Petro | Apr 2026 | current | Source reportedE20 |
| Named Executive Officer | Robert J. Cardin | Apr 2026 | current | Source reportedE21 |
| Named Executive Officer | Roselyn R. Bar | Not captured | unknown | Source reportedE22 |
Board of directors
Evidence2 directors published. Independence determinations are not published for every director.
| Director | Status | Since | Committees | Claim |
|---|---|---|---|---|
| Gayla J. Delly | Independence not published | 2026 | None published | Source reportedE8 |
| Martin J. Lyons, Jr. | Independence not published | 2026 | None published | Source reportedE11 |
| Anthony R. Foxx | Independence not published | Not published | Ethics, Environment, Safety and HealthEthics, Environment, Safety and Health; FinanceFinance | Source reportedE3 |
| C. Howard Nye | Independence not published | Not published | Executive | Source reportedE4 |
| David C. Wajsgras | Independence not published | Not published | Audit, chairAudit · Chair; Management Development and CompensationManagement Development and Compensation | Source reportedE5 |
| Donald W. Slager | Independence not published | Not published | ExecutiveExecutive; Management Development and Compensation; Nominating and Corporate Governance · ChairManagement Development and CompensationNominating and Corporate Governance, chair | Source reportedE6 |
| Dorothy M. Ables | Independence not published | Not published | AuditAudit; Ethics, Environment, Safety and Health · ChairEthics, Environment, Safety and Health, chair | Source reportedE7 |
| John J. Koraleski | Independence not published | Not published | None published | Source reportedE9 |
| Laree E. Perez | Independence not published | Not published | AuditAudit; FinanceFinance | Source reportedE10 |
| Mary T. Mack | Independence not published | Not published | Management Development and CompensationManagement Development and Compensation; Nominating and Corporate GovernanceNominating and Corporate Governance | Source reportedE12 |
| Sue W. Cole | Independence not published | Not published | None published | Source reportedE13 |
| Thomas H. Pike | Independence not published | Not published | FinanceFinance; Nominating and Corporate GovernanceNominating and Corporate Governance | Source reportedE14 |
Committees and risk ownership
Evidence| Committee | Chair | Members | Risks assigned |
|---|---|---|---|
| Audit | David C. Wajsgras | David C. Wajsgras, Dorothy M. Ables, Laree E. Perez | Not described in the published record |
| Audit · Chair; Management Development and Compensation | Not published | David C. Wajsgras | Not described in the published record |
| Audit; Ethics, Environment, Safety and Health · Chair | Not published | Dorothy M. Ables | climate |
| Audit; Finance | Not published | Laree E. Perez | financial |
| Ethics, Environment, Safety and Health | Dorothy M. Ables | Dorothy M. Ables, Anthony R. Foxx | climate |
| Ethics, Environment, Safety and Health; Finance | Not published | Anthony R. Foxx | climate, financial |
| Executive | Not published | C. Howard Nye, Donald W. Slager | Not described in the published record |
| Executive; Management Development and Compensation; Nominating and Corporate Governance · Chair | Not published | Donald W. Slager | Not described in the published record |
| Finance | Not published | Anthony R. Foxx, Laree E. Perez, Thomas H. Pike | financial |
| Finance; Nominating and Corporate Governance | Not published | Thomas H. Pike | financial |
| Management Development and Compensation | Not published | David C. Wajsgras, Donald W. Slager, Mary T. Mack | Not described in the published record |
| Management Development and Compensation; Nominating and Corporate Governance | Not published | Mary T. Mack | Not described in the published record |
| Nominating and Corporate Governance | Donald W. Slager | Donald W. Slager, Mary T. Mack, Thomas H. Pike | Not described in the published record |
Committee RecordAudit: Chair David C. Wajsgras; Members David C. Wajsgras (Chair); Dorothy M. Ables; Laree E. Perez
Committee AppointmentDavid C. Wajsgras: chair, Audit
Committee AppointmentDorothy M. Ables: member, Audit
Committee AppointmentLaree E. Perez: member, Audit
Committee RecordEthics, Environment, Safety and Health: Chair Dorothy M. Ables; Members Dorothy M. Ables (Chair); Anthony R. Foxx
Committee AppointmentDorothy M. Ables: chair, Ethics, Environment, Safety and Health
Committee AppointmentAnthony R. Foxx: member, Ethics, Environment, Safety and Health
Committee RecordExecutive: Chair not stated; Members C. Howard Nye; Donald W. Slager
Committee AppointmentC. Howard Nye: member, Executive
Committee AppointmentDonald W. Slager: member, Executive
Committee RecordFinance: Chair not stated; Members Anthony R. Foxx; Laree E. Perez; Thomas H. Pike
Committee AppointmentAnthony R. Foxx: member, Finance
Committee AppointmentLaree E. Perez: member, Finance
Committee AppointmentThomas H. Pike: member, Finance
Committee RecordManagement Development and Compensation: Chair not stated; Members David C. Wajsgras; Donald W. Slager; Mary T. Mack
Committee AppointmentDavid C. Wajsgras: member, Management Development and Compensation
Committee AppointmentDonald W. Slager: member, Management Development and Compensation
Committee AppointmentMary T. Mack: member, Management Development and Compensation
Committee RecordNominating and Corporate Governance: Chair Donald W. Slager; Members Donald W. Slager (Chair); Mary T. Mack; Thomas H. Pike
Committee AppointmentDonald W. Slager: chair, Nominating and Corporate Governance
Committee AppointmentMary T. Mack: member, Nominating and Corporate Governance
Committee AppointmentThomas H. Pike: member, Nominating and Corporate Governance
Control and voting power
EvidenceNo published claims
Nothing is published for this section yet. A missing Claim is a coverage state, not a negative finding.
Authority to act
Evidence and agent registryWho can act for the company, and on whose authority. This is what a counterparty's agent checks before it accepts an order, signs, or pays.
Principal executive officerC. Howard Nye, President and Chief Executive Officer, from Apr 15, 2026
Who can authorize an agentNot assessedNo Alpha inference about signing authority or board-reserved matters is published for this record.
Not assessed
AI agents registered by the companyNot registered in the public RegistryAgent Deployments, Agent Use Cases, Authority Grants, TrustChecks, Action Ledger entries and Governance Receipts live in the private enterprise overlay. They are never projected into the public Registry without explicit cross-plane authorization. Absence here is a plane boundary, not evidence that the enterprise operates no agents.
Agent registry
Delegations publishedNot disclosedBoard and officer delegation resolutions are not public filings and are not published in this record.
Search scope
Financials and market context
EvidenceIndex MembershipS&P 500 (SPX)
Security ListingMLM (NYSE)
Index memberships1 membership attached to a specific security and listing.Announcements, effective dates, and removals remain distinct states; Alpha does not infer membership from company size, exchange, or reputation.
SPX
Source reportedAs of Oct 16, 2026. Rights-filtered public evidence only; no redistribution or model training is granted. Only source-backed memberships with an explicit public redistribution basis are returned.
| Index | Security | Status | Effective | Verification | Source |
|---|---|---|---|---|---|
| S&P 500 (S&P Dow Jones Indices) | NYSE: MLM | current | Jul 2, 2014 | inferred | Slickcharts S&P 500 constituent table (public observation, not S&P DJI license) |
Governance and policies
EvidenceNo published claims
Nothing is published for this section yet. A missing Claim is a coverage state, not a negative finding.
Risk, audit, and cyber
EvidenceNo published claims
Nothing is published for this section yet. A missing Claim is a coverage state, not a negative finding.
AI oversight and accountability
EvidenceNo published claims
Nothing is published for this section yet. A missing Claim is a coverage state, not a negative finding.
Legal and regulatory
EvidenceNo published claims
Nothing is published for this section yet. A missing Claim is a coverage state, not a negative finding.
Compensation
EvidenceNo published claims
Nothing is published for this section yet. A missing Claim is a coverage state, not a negative finding.
Other published claims
EvidencePublished Claims that belong to no section above. Each keeps its permalink, evidence, and assertion state.
Legal NameMARTIN MARIETTA MATERIALS INC
Entity StatusPublic listing published
Official Websitehttps://www.martinmarietta.com
Published FactUS
Published FactNC
Published FactMaterials
Published Facthttps://www.martinmarietta.com
Not yet in this record
CoverageA gap is a coverage state, not a negative finding. These sections are expected for this entity class and are not yet published.
- Corporate structureNot reviewed. Parent, subsidiary and predecessor structure explains who is governed.
- OwnershipNot reviewed. Ownership and voting power determine who can influence the board.
- FinancialsNot reviewed. Governance-relevant financial context frames capital and audit decisions.
- CompensationNot reviewed. Pay design shows how incentives are governed.
- GovernanceNot reviewed. Governing documents and provisions set the rules of the enterprise.
- Shareholder governanceNot reviewed. Meeting and vote records show shareholder dissent and support.
- AuditNot reviewed. Auditor, controls and restatements show assurance over reporting.
- LegalNot reviewed. Material legal and regulatory matters show enforcement exposure.
- RiskNot reviewed. Risk ownership links the board, committees, executives and controls.
- CyberNot reviewed. Cyber and data governance is a disclosed oversight domain.
- AI governanceNot reviewed. AI oversight is a differentiated Alpha governance domain.
- Absence of a leadership role, committee, or disclosure is not evidence that it does not exist.Absence of a leadership role, committee, or disclosure is not evidence that it does not exist.
- Only explicitly published canonical company identity and current confirmed public roles are included.Only explicitly published canonical company identity and current confirmed public roles are included.
- Absence of a board, committee, executive, listing, or claim is not evidence that it does not exist.Absence of a board, committee, executive, listing, or claim is not evidence that it does not exist.
- Public retrieval does not grant redistribution, model-training, direct-contact, or relationship-pathfinding rights.Public retrieval does not grant redistribution, model-training, direct-contact, or relationship-pathfinding rights.
- This Company Profile is an identity and evidence record, not an Alpha rating.This Company Profile is an identity and evidence record, not an Alpha rating.
Linked people
Same claims as person records- Bradley D. KohnNamed Executive Officercompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:21
- C. Howard NyePresident and Chief Executive Officer; Directorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:22, company:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:10
- Donald A. McCunniffNamed Executive Officercompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:23
- James A.J. NickolasNamed Executive Officercompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:24
- Jason P. FlynnNamed Executive Officercompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:25
- Michael J. PetroNamed Executive Officercompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:26
- Robert J. CardinNamed Executive Officercompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:27
- Roselyn R. BarNamed Executive Officercompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:28
- Gayla J. DellyDirectorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:14
- Martin J. Lyons, Jr.Directorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:17
- Anthony R. FoxxDirectorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:9
- David C. WajsgrasDirectorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:11
- Donald W. SlagerDirectorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:12
- Dorothy M. AblesDirectorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:13
- John J. KoraleskiDirectorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:15
- Laree E. PerezDirectorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:16
- Mary T. MackDirectorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:18
- Sue W. ColeDirectorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:19
- Thomas H. PikeDirectorcompany:55a83041-1c79-49fa-b492-407fc762ab03:leadership_role:20
Subject and corrections
Public-role doctrineThis record exists because the company is in the published Registry. The company can claim the record, correct, or dispute any Claim. Corrections are versioned and the original stays in history.
- Basis
- Published company record built from public sources
- Sources
- 24 evidence records cited. 0 with redistribution rights.
- Never published
- Private enterprise overlay data: deployments, authority grants, TrustChecks, receipts, telemetry
- Record claimed
- No
- Open disputes
- 0
- Identity ownership
- unclaimed
Claiming not yet available
If the company claims the record, its statements appear as their own assertion state and never overwrite the cited evidence.
Evidence
Authority and rights- E1Alpha canonical company public projection. canonical identity. Retrieved Oct 15, 2026. Cited by 6 Claims.
- E2MARTIN MARIETTA MATERIALS Form 10-K. SEC filing. Retrieved Aug 29, 2026. Cited by 2 Claims.
- E3sec filing. Published Apr 15, 2025. Retrieved May 3, 2026. Cited by 1 Claim.
- E4sec filing. Published Apr 15, 2025. Retrieved May 3, 2026. Cited by 1 Claim.
- E5sec filing. Published Apr 15, 2025. Retrieved May 3, 2026. Cited by 1 Claim.
- E6sec filing. Published Apr 15, 2025. Retrieved May 3, 2026. Cited by 1 Claim.
- E7sec filing. Published Apr 15, 2025. Retrieved May 3, 2026. Cited by 1 Claim.
- E8sec filing. Published Apr 15, 2026. Retrieved May 13, 2026. Cited by 1 Claim.
- E9sec filing. Published Apr 15, 2025. Retrieved May 3, 2026. Cited by 1 Claim.
- E10sec filing. Published Apr 15, 2025. Retrieved May 3, 2026. Cited by 1 Claim.
- E11sec filing. Published Apr 15, 2026. Retrieved May 13, 2026. Cited by 1 Claim.
- E12sec filing. Published Apr 15, 2025. Retrieved May 3, 2026. Cited by 1 Claim.
- E13sec filing. Published Apr 15, 2025. Retrieved May 3, 2026. Cited by 1 Claim.
- E14sec filing. Published Apr 15, 2025. Retrieved May 3, 2026. Cited by 1 Claim.
- E15sec filing. Published Apr 15, 2026. Retrieved May 13, 2026. Cited by 1 Claim.
- E16sec filing. Published Apr 15, 2026. Retrieved May 13, 2026. Cited by 1 Claim.
- E17sec filing. Published Apr 15, 2026. Retrieved May 13, 2026. Cited by 1 Claim.
- E18sec filing. Published Apr 15, 2026. Retrieved May 13, 2026. Cited by 1 Claim.
- E19sec filing. Published Apr 15, 2026. Retrieved May 13, 2026. Cited by 1 Claim.
- E20sec filing. Published Apr 15, 2026. Retrieved May 13, 2026. Cited by 1 Claim.
- E21sec filing. Published Apr 15, 2026. Retrieved May 13, 2026. Cited by 1 Claim.
- E22MLM executive roster sourcesec filing. Published May 3, 2026. Retrieved May 3, 2026. Cited by 1 Claim.
- E23board_seats. sp500-board-director-completeness-remediation-2026-05-15. Cited by 22 Claims.
- E24Slickcharts S&P 500 constituent table (public observation, not S&P DJI license). index provider. Retrieved Sep 2, 2026. Cited by 1 Claim.
What changed in version public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce
vpublic-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce published Oct 15, 2026- Gayla J. Delly seat on Martin Marietta Materials, effective 2026-04-15.
- Martin J. Lyons, Jr. seat on Martin Marietta Materials, effective 2026-04-15.
- Bradley D. Kohn executive of Martin Marietta Materials, effective 2026-04-15.
- C. Howard Nye executive of Martin Marietta Materials, effective 2026-04-15.
- Donald A. McCunniff executive of Martin Marietta Materials, effective 2026-04-15.
- James A.J. Nickolas executive of Martin Marietta Materials, effective 2026-04-15.
- Jason P. Flynn executive of Martin Marietta Materials, effective 2026-04-15.
- Michael J. Petro executive of Martin Marietta Materials, effective 2026-04-15.
- Robert J. Cardin executive of Martin Marietta Materials, effective 2026-04-15.