Welcome to our dedicated page for Martin Mari Mat SEC filings (Ticker: MLM), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Martin Marietta Materials filings document an operating company whose disclosures cover aggregates and heavy building materials operations, portfolio transactions, financing arrangements, governance, safety reporting, and operating results. Form 8-K reports include earnings releases, Regulation FD materials, executive appointments and related employment agreements, mine-safety notices, credit-facility amendments, and completed acquisitions or dispositions of assets.
Proxy materials describe annual-meeting matters, board and executive compensation governance, shareholder voting items, and performance discussion tied to the company’s aggregates, building materials, and Specialties businesses. Capital-structure disclosures include senior unsecured revolving credit facility terms, while transaction filings record completed exchanges involving aggregates, cement, ready-mixed concrete, land, and cash consideration.
DELLY GAYLA J reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials director Gayla J. Delly received an equity grant of 313 shares of common stock. The award was reported at a price of $0.00 per share on May 14, 2026, and brought her direct holdings to 313 shares following the transaction.
Ables Dorothy M reported acquisition or exercise transactions in this Form 4 filing.
MARTIN MARIETTA MATERIALS INC director Dorothy M. Ables received a grant of 313 shares of Common Stock on May 14, 2026. The award was recorded at a price of $0.00 per share, indicating it is a compensation-related grant rather than an open-market purchase. After this grant, she directly holds 4,221 shares of the company’s common stock.
Martin Marietta Materials director Gayla J. Delly has filed an initial Form 3 reporting her beneficial ownership in the company’s common stock. The filing shows she held 0 shares of Common Stock as of May 14, 2026, indicating no reportable equity position at that time.
Martin Marietta Materials director Martin J. Lyons has filed an initial Form 3 reporting his beneficial ownership in the company. The filing lists Common Stock holdings of 0 shares following the reported entry dated May 14, 2026, indicating he currently reports no direct common stock ownership.
Martin Marietta Materials, Inc. reported the results of its annual shareholder meeting held on May 14, 2026. Shareholders approved the Martin Marietta Amended and Restated Stock-Based Award Plan and all other management proposals.
Of the 60,256,208 shares outstanding and entitled to vote, 54,913,555 were represented, giving a 91% quorum. Ten directors were elected, each receiving over 50 million votes cast for. Shareholders ratified PricewaterhouseCoopers LLP as independent auditors for the year ending December 31, 2026, with 54,541,009 shares voted for and 328,309 shares against. They also approved, on an advisory basis, the compensation of named executive officers, with 51,322,167 shares for and 960,974 against, and separately approved the amended and restated stock-based award plan, with 51,804,036 shares for and 592,460 against.
Samborski Christopher William reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials executive Christopher William Samborski, EVP and COO, reported an equity grant. On May 1, he received 8,101 shares of Common Stock through a restricted stock unit award at a stated price of $0.00 per share.
Following this award, his directly held Common Stock position increased to 21,762 shares. The restricted stock unit award was granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan and vests pro rata in three equal installments on the sixth, seventh, and eighth anniversaries of the award date, subject to continued employment and other conditions in the award agreement.
Martin Marietta Materials EVP and COO Christopher William Samborski filed an initial ownership report showing 13,661 shares of Common Stock held directly as of May 1, 2026. This Form 3 filing establishes his baseline equity stake as a company officer, without reporting any recent buy or sell transactions.
Martin Marietta Materials delivered a transformative Q1 2026, driven by a large asset exchange and cement divestiture that produced exceptional net profit. Revenue from continuing operations rose to $1.36 billion from $1.16 billion, while Adjusted EBITDA from continuing operations increased to $364 million from $319 million.
Net earnings attributable to Martin Marietta jumped to $1.51 billion versus $116 million, almost entirely due to a $1.4 billion after-tax gain on the sale of the Midlothian cement plant and related Texas ready mixed concrete operations, reported as discontinued operations. Earnings from continuing operations fell to $79 million (diluted EPS $1.31) from $104 million (EPS $1.70), reflecting integration, inventory markup and tax charges tied to the QUIKRETE transaction.
Aggregates shipments increased 12.4% to 43.9 million tons, with average selling price holding at $23.70 per ton. Specialties revenue grew to $143 million with gross profit up 17% to $45 million, aided by the Premier Magnesia acquisition. The QUIKRETE asset exchange added roughly 20 million tons of annual aggregates capacity and $450 million of cash while exiting cement. Cash from operating activities was $227 million, cash and equivalents ended at $273 million and total debt was $5.3 billion. The company also agreed to acquire New Frontier Materials, adding over 8 million tons of aggregates capacity in the St. Louis area.
Vanguard Capital Management reported beneficial ownership of 4,505,369 shares of Martin Marietta Materials Inc Common Stock, equal to 7.47% of the class. The filing states Vanguard has sole dispositive power over 4,505,369 shares and sole voting power over 587,986 shares. The schedule clarifies these holdings reflect shares managed by Vanguard Capital Management LLC and affiliated business divisions, including shares held in Vanguard funds and client accounts. Signature is provided by the Head of Global Fund Administration on 04/30/2026.
Martin Marietta Materials reported first-quarter 2026 results showing strong top-line growth but mixed profitability. Revenues from continuing operations rose 17% to $1.36 billion, driven largely by a 12% increase in aggregates shipments to 43.9 million tons, a first-quarter record.
Adjusted EBITDA from continuing operations increased 14% to $364 million, and adjusted earnings per diluted share from continuing operations grew 14% to $1.93, even though GAAP diluted EPS from continuing operations fell to $1.31 from $1.70 on acquisition-related charges. Aggregates revenues rose 14% to $1.14 billion, while gross profit in that product line declined 3% as mix and purchase accounting pressures reduced margin per ton.
The company completed a large asset exchange with QUIKRETE, gaining operations producing about 20 million tons of aggregates annually plus $450 million in cash, and agreed to acquire New Frontier Materials, which produces over 8 million tons annually. Management reaffirmed full-year 2026 guidance, including midpoint revenues of $7.16 billion and adjusted EBITDA from continuing operations of $2.43 billion, citing strong demand and April price increases.