# Martin Marietta Materials Martin Marietta Materials is a Building Materials / Aggregates based in Raleigh, United States. ## Overview - **Organization type:** Building Materials / Aggregates - **Headquarters:** Raleigh, United States - **Region:** North America - **Address:** Raleigh, NC, United States - **Founded:** 1993 - **Assets under management:** Undisclosed - **Website:** martinmarietta.com - **LinkedIn:** https://www.linkedin.com/company/martin-marietta-materials ## Regulatory record - **Reports private funds:** No ## About Martin Marietta Materials was created in 1993 when the venerable aerospace and defense contractor Martin Marietta Corporation spun off its construction materials division as a standalone public company. Two years later, Martin Marietta Corporation merged with Lockheed, leaving the materials business to forge its own path as a pure-play aggregates supplier. The company traces deeper roots to Superior Stone, a North Carolina quarry operator founded in 1939. Today, Chairman and CEO C. Howard "Ward" Nye leads the firm, having succeeded Stephen Zelnak in 2010 after serving as COO since 2006. The company operates roughly 400 quarries, mines, and distribution yards across 28 states, Canada, and the Bahamas. Its core business — aggregates — produces the crushed stone, sand, and gravel used in asphalt, ready-mixed concrete, and road base. In 2024, Martin Marietta completed its $2.05 billion acquisition of 20 Blue Water Industries aggregates operations across the Southeast (per the firm, April 2024). The company also runs a downstream cement and ready-mixed concrete network and a Magnesia Specialties division that supplies high-purity magnesia products for industrial and agricultural applications. Geographic concentration favors high-growth Sun Belt states — Texas, Florida, Georgia, North Carolina, and Colorado generate the majority of shipments. Publicly traded on the NYSE under the ticker MLM, the company employs approximately 9,400 people. It restricts executive officers from hedging company stock, and the board maintains a classified structure being phased out by 2026. In February 2024, the board authorized an additional 20 million shares for repurchase, bringing the remaining buyback capacity to 28.9 million shares, and raised the quarterly dividend by 7% (per the firm, February 2024). Martin Marietta's structural differentiator is the embedded scarcity of its reserve base — 20.6 billion tons of permitted aggregates reserves that would take decades and billions of dollars in permitting costs for a competitor to replicate. Aggregates are too high-volume and low-value to ship economically by rail or truck beyond 50 to 100 miles, meaning each quarry operates as a local monopoly in its delivery radius. This reserve position, combined with Sun Belt demographic tailwinds and federal infrastructure spending, creates a wide competitive moat that purely financial family offices cannot replicate through portfolio allocation. ## Sectors - Infrastructure - Real Estate ## People - C. Howard Nye — Chairman and Chief Executive Officer ## Questions ### Who runs Martin Marietta Materials? C. Howard "Ward" Nye has served as Chairman and CEO since 2010. He joined the company in 2006 as COO and succeeded Stephen Zelnak, who had led the firm since its 1993 spin-off from the aerospace Martin Marietta Corporation. Nye previously practiced law at Kilpatrick Stockton and served as an executive at Hanson PLC's North American aggregates division before its acquisition by HeidelbergCement. ### Where is the real value in Martin Marietta's business model? The primary value driver is the company's 20.6 billion tons of permitted aggregates reserves, which represent decades of production at current extraction rates. Because crushed stone and sand are extremely expensive to transport relative to their value, each quarry operates as a near-monopoly within a 50-to-100-mile radius. Permitting a new quarry in the United States can take 7 to 10 years and cost millions in legal and environmental review, giving the company a barrier to entry no family office portfolio company can easily replicate. ### What geographies drive the company's revenues? The Sun Belt corridor dominates shipments — Texas, Florida, Georgia, North Carolina, and Colorado are the largest revenue-generating states. The company operates roughly 400 facilities across 28 US states, plus operations in Canada and the Bahamas. Population and employment growth in these regions drive demand for housing, highways, data centers, and onshored manufacturing plants, all of which are intensive consumers of aggregates. ### Does Martin Marietta have exposure beyond construction materials? Yes, through its Magnesia Specialties division, the company produces high-purity magnesia chemicals and dolomitic lime used in water treatment, flame retardants, animal feed, pulp and paper, and environmental scrubbing applications. This division operates manufacturing facilities in Michigan and Ohio and serves a different customer base than the core aggregates business, providing some cyclical diversification. ## Related profiles - [Hartree Partners](https://altss.com/profile/hartree-partners-lp) - [Adams Outdoor Advertising](https://altss.com/profile/adams-outdoor-advertising-lp) --- Last updated: 2026-06-03T20:00:00.000Z Canonical page: https://altss.com/profile/martin-marietta-materials-inc Maintained by Altss — https://altss.com — methodology: https://altss.com/methodology