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MARTIN MARIETTA MATERIALS INC

Canonical company identity and public leadership record.

https://registry.alpha.ac/companies/martin-marietta-materials-inc

Entity: Public listing published
Primary listing: NYSE: MLM
Verification: Partially verified
Last reviewed: 2026-10-16T13:51:36.651657+00:00

Overview

Alpha's canonical identity and public leadership record for Martin Marietta Materials.

Canonical AEGIS identity graph

Executive leadership

Current, confirmed roles are shown only when both the person Profile and supporting source record satisfy the public projection boundary. A missing role is not evidence that it does not exist.

Executive team

8 public records

Bradley D. Kohn

Named Executive Officer

State: confirmed
Effective: From Apr 15, 2026
Confidence: 94%
Evidence: MLM DEF 14A executive officersApr 15, 2026

President and Chief Executive Officer

State: confirmed
Effective: From Apr 15, 2026
Confidence: 94%
Evidence: MLM DEF 14A executive officersApr 15, 2026

Donald A. McCunniff

Named Executive Officer

State: confirmed
Effective: From Apr 15, 2026
Confidence: 94%
Evidence: MLM DEF 14A executive officersApr 15, 2026

James A.J. Nickolas

Named Executive Officer

State: confirmed
Effective: From Apr 15, 2026
Confidence: 94%
Evidence: MLM DEF 14A executive officersApr 15, 2026

Named Executive Officer

State: confirmed
Effective: From Apr 15, 2026
Confidence: 94%
Evidence: MLM DEF 14A executive officersApr 15, 2026

Michael J. Petro

Named Executive Officer

State: confirmed
Effective: From Apr 15, 2026
Confidence: 94%
Evidence: MLM DEF 14A executive officersApr 15, 2026

Robert J. Cardin

Named Executive Officer

State: confirmed
Effective: From Apr 15, 2026
Confidence: 94%
Evidence: MLM DEF 14A executive officersApr 15, 2026

Named Executive Officer

State: confirmed
Effective: Date not stated
Confidence: 94%
Evidence: MLM executive roster sourceMay 3, 2026

Governance leadership

Boards & Committees

Board and committee assignments appear only when the canonical public projection retains a current role and supporting source. Unpublished records are not interpreted as absence.

Record as of Oct 16, 2026. Chair, executive office, Lead Independent Director and committee appointments retain their separate source roles. A complete board composition denominator and committee charters are not established by a partial roster.

Board roles

12 public records

Anthony R. Foxx

Director

Independence not statedEthics, Environment, Safety and HealthFinance

State: confirmed
Effective: Date not stated
Confidence: 95%
Evidence: Martin Marietta Materials, Inc. director board sourceApr 15, 2025

Director

Independence not statedExecutive

State: confirmed
Effective: Date not stated
Confidence: 95%
Evidence: Martin Marietta Materials, Inc. director board sourceApr 15, 2025

David C. Wajsgras

Director

Independence not statedAudit · ChairManagement Development and Compensation

State: confirmed
Effective: Date not stated
Confidence: 95%
Evidence: Martin Marietta Materials, Inc. director board sourceApr 15, 2025

Donald W. Slager

Director

Independence not statedExecutiveManagement Development and CompensationNominating and Corporate Governance · Chair

State: confirmed
Effective: Date not stated
Confidence: 95%
Evidence: Martin Marietta Materials, Inc. director board sourceApr 15, 2025

Dorothy M. Ables

Director

Independence not statedAuditEthics, Environment, Safety and Health · Chair

State: confirmed
Effective: Date not stated
Confidence: 95%
Evidence: Martin Marietta Materials, Inc. director board sourceApr 15, 2025

Director

Independence not stated

State: confirmed
Effective: From Apr 15, 2026
Confidence: 92%
Evidence: MLM DEF 14A director slateApr 15, 2026

John J. Koraleski

Director

Independence not stated

State: confirmed
Effective: Date not stated
Confidence: 95%
Evidence: Martin Marietta Materials, Inc. director board sourceApr 15, 2025

Director

Independence not statedAuditFinance

State: confirmed
Effective: Date not stated
Confidence: 95%
Evidence: Martin Marietta Materials, Inc. director board sourceApr 15, 2025

Martin J. Lyons, Jr.

Director

Independence not stated

State: confirmed
Effective: From Apr 15, 2026
Confidence: 92%
Evidence: MLM DEF 14A director slateApr 15, 2026

Director

Independence not statedManagement Development and CompensationNominating and Corporate Governance

State: confirmed
Effective: Date not stated
Confidence: 95%
Evidence: Martin Marietta Materials, Inc. director board sourceApr 15, 2025

Director

Independence not stated

State: confirmed
Effective: Date not stated
Confidence: 95%
Evidence: Martin Marietta Materials, Inc. director board sourceApr 15, 2025

Director

Independence not statedFinanceNominating and Corporate Governance

State: confirmed
Effective: Date not stated
Confidence: 95%
Evidence: Martin Marietta Materials, Inc. director board sourceApr 15, 2025

Committees

6 public records

Membership and chair roles are projected from current board seats. A chair is shown only when a stored chair flag says so.

Audit

Chair: David C. Wajsgras
Members: David C. Wajsgras (Chair); Dorothy M. Ables; Laree E. Perez

Ethics, Environment, Safety and Health

Chair: Dorothy M. Ables
Members: Dorothy M. Ables (Chair); Anthony R. Foxx

Executive

Chair: Not stated
Members: C. Howard Nye; Donald W. Slager

Finance

Chair: Not stated
Members: Anthony R. Foxx; Laree E. Perez; Thomas H. Pike

Management Development and Compensation

Chair: Not stated
Members: David C. Wajsgras; Donald W. Slager; Mary T. Mack

Nominating and Corporate Governance

Chair: Donald W. Slager
Members: Donald W. Slager (Chair); Mary T. Mack; Thomas H. Pike

Source record

Alpha canonical company public projection

Supports Company identity, Published leadership, Entity status boundary

Reviewed 2026-10-16T13:51:36.651657+00:00

MARTIN MARIETTA MATERIALS Form 10-K

Supports Official website

Reviewed 2026-08-29T22:48:22Z