Martin Marietta Materials Inc.

Last updated September 27, 2026

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Organization details

Legal name: Martin Marietta Materials Inc.
Ownership: Public
Status: Active
Sector (GICS): Materials
SIC code: 1400 — Mining & Quarrying of Nonmetallic Minerals (No Fuels)
Jurisdiction of incorporation: North Carolina
Headquarters city: Raleigh
Headquarters state / province: North Carolina
Headquarters country: United States
Fiscal year end: December
Ticker symbol: MLM
Primary stock exchange: NYSE

Identifiers

SEC CIK: 0000916076
EIN: 56-1848578
Wikidata ID: Q6776123

Board of directors

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Anthony R. Foxx · Director
Since 2023
C. Howard Nye · Director · Chairman, Pres & CEO
Since 2023
David C. Wajsgras · Director
Since 2023
Donald W. Slager · Director
Since 2023
Dorothy M. Ables · Director
Since 2023
Gayla J. Delly · Director
Since 2026
John J. Koraleski · Director
Since 2023
Laree E. Perez · Director
Since 2023
Martin J. Lyons · Director
Since 2026
Mary T. Mack · Director
Since 2024
Michael J. Quillen · Director
Since 2023
Philipp Niemann · Director
Since 2026
Smith W. Davis · Director
Since 2023
Sue W. Cole · Director
Since 2023
Thomas Pike · Director
Since 2023

Chief executives

C. Howard Nye · Chairman, Pres & CEO

Dates unknown

Director election results

Annual meeting of May 14, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

8 of this board's directors also sit on 13 other boards. 1 is in the same sector.

Shared director Other board Same sector

Alpha Metallurgical Resources Inc.
via Michael J. Quillen
Ameren Corporation
via Martin J. Lyons
Broadcom Inc.
via Gayla J. Delly
CDW Corporation
via Anthony R. Foxx
Eastman Chemical Company Same sector
via Donald W. Slager
Flowserve Corporation
via Gayla J. Delly
Fortrea Holdings Inc.
via Thomas Pike
General Dynamics Corporation
via C. Howard Nye
Littelfuse Inc.
via Gayla J. Delly
NXP Semiconductors N.V.
via Anthony R. Foxx
Parsons Corporation
via David C. Wajsgras
WESCO International Inc.
via David C. Wajsgras
WillScot Holdings Corporation
via Donald W. Slager

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months: $0; 0 purchases by 0 insiders
Sold, last 12 months: $0; 0 sales by 0 insiders

Date	Insider	Transaction	Shares	Price	Value
Sep 1, 2026	Petro Michael J Officer (SVP and CFO)	Grant or award	+9,331	—	—
Aug 31, 2026	Martin J. Lyons Director	Grant or award	+68	$518.70	$35,272
Aug 31, 2026	Thomas Pike Director	Grant or award	+66	$518.70	$34,234
Aug 31, 2026	David C. Wajsgras Director	Grant or award	+78	$518.70	$40,459
Aug 21, 2026	Philipp Niemann Director	Grant or award	+337	—	—
Aug 3, 2026	Petro Michael J Officer (SVP and CFO)	Shares withheld for tax	−368	$542.27	$199,555
May 29, 2026	David C. Wajsgras Director	Grant or award	+69	$581.64	$40,133
May 29, 2026	Thomas Pike Director	Grant or award	+59	$581.64	$34,317
May 29, 2026	Martin J. Lyons Director	Grant or award	+61	$581.64	$35,480
May 14, 2026	David C. Wajsgras Director	Grant or award	+313	—	—
May 14, 2026	Donald W. Slager Director	Grant or award	+313	—	—
May 14, 2026	Thomas Pike Director	Grant or award	+313	—	—
May 14, 2026	Laree E. Perez Director	Grant or award	+313	—	—
May 14, 2026	Mary T. Mack Director	Grant or award	+313	—	—
May 14, 2026	Martin J. Lyons Director	Grant or award	+313	—	—

Peers

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Questions about Martin Marietta Materials Inc.

Who is the CEO of Martin Marietta Materials Inc.?

C. Howard Nye is Martin Marietta Materials Inc.'s Chairman, Pres & CEO.

How many directors are on Martin Marietta Materials Inc.'s board?

Martin Marietta Materials Inc.'s board has 15 directors: Anthony R. Foxx, C. Howard Nye, David C. Wajsgras, Donald W. Slager, Dorothy M. Ables, Gayla J. Delly, John J. Koraleski, Laree E. Perez, Martin J. Lyons, Mary T. Mack and 5 others.

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