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.
Martin Marietta Materials director David C. Wajsgras reported an equity award under the company’s director stock plan. On this date, he acquired 56 common stock units at a reference price of $676.57 per share, increasing his directly held common stock to 4,646 shares.
The units were accrued under the Common Stock Purchase Plan for Directors and will be settled in stock in a lump sum or installments over time, generally after he ceases to be a non-employee director, according to his prior election under the plan.
Martin Marietta Materials director Pike Thomas reported an acquisition of company stock through an equity award. On the reported date, he received 47 shares of Martin Marietta Materials common stock at a price of $676.57 per share, classified as a grant or award acquisition.
Following this transaction, his directly held common stock position increased to 4,591 shares. The footnote explains that these common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors and will be settled in stock at future dates elected under that plan.
Martin Marietta Materials director John J. Koraleski reported an automatic equity award. On February 27, 2026, he acquired 69 shares of Common Stock as a grant or award acquisition at a reported price of $676.57 per share under the company’s Common Stock Purchase Plan for Directors.
Following this grant, his directly held Common Stock balance increased to 8,822 shares. The filing also shows indirect ownership of 2,000 shares through SJK HOLDINGS and INVESTMENTS, LLC and 4,900 shares held via the KORALESKI LIVING TRUST, reflecting additional positions associated with the director.
Martin Marietta Materials SVP and CFO Michael J. Petro reported two Form 4 transactions involving company common stock. On February 23, he had a tax-withholding disposition of 211 shares at $683.60 per share, and on February 24 a similar disposition of 94 shares at $696.85 per share. After these transactions, he directly owned 12,398.6026 shares of Martin Marietta Materials common stock.
Martin Marietta Materials Chairman, President & CEO C. Howard Nye reported two tax-withholding dispositions of common stock related to equity compensation. On February 24, he disposed of 1,221 shares at $696.85 per share, and on February 23 he disposed of 1,805 shares at $683.60 per share, both to cover tax liabilities rather than open-market sales. After these transactions, he held 170,119 shares directly, and 70,400 shares were held indirectly through the Charles Howard Nye Irrevocable Trust.
Martin Marietta Materials EVP and CHRO Donald A. McCunniff reported a tax-related share disposition under a benefit transaction. On February 23, 2026, he disposed of 192 shares of common stock at $683.60 per share to satisfy tax withholding obligations. After this transaction, his reported direct holdings totaled 4,558 shares of Martin Marietta Materials common stock.
Martin Marietta Materials senior vice president and CIO Jason Paul Flynn reported two tax-related share dispositions under an equity award. On February 23, 177 shares of common stock were withheld at $683.60 per share, and on February 24, 30 shares were withheld at $696.85 per share. After these transactions, he directly owned 5,494 common shares.
Martin Marietta Materials senior vice president, controller and chief accounting officer Robert J. Cardin reported two tax-related share dispositions. On February 24, he disposed of 103 common shares at $696.85 per share to satisfy tax withholding obligations. On February 23, he similarly disposed of 209 shares at $683.60 per share for tax withholding. Following these transactions, he directly held 12,459 common shares.
Petro Michael J reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials reported that Senior Vice President and Chief Financial Officer Michael J. Petro received an equity compensation grant of 931 shares of common stock on February 20, 2026. These shares were awarded as restricted stock units under the company’s Amended and Restated Stock-Based Award Plan and carry no purchase price.
The award vests in equal installments over three years from the grant date, meaning Petro earns the shares gradually over time as he continues in his role. Following this grant, his directly held common stock position increased to 12,703.6026 shares, reflecting ongoing alignment of executive compensation with shareholder interests through stock-based awards.
Martin Marietta Materials’ Chairman, President and CEO C. Howard Nye received equity awards of company common stock. On February 20, 2026, he acquired 2,216 shares at a grant value of $548.75 per share and an additional 6,405 shares at no cost, including a restricted stock unit award that vests in equal installments over three years. Following these grants, he directly owns 173,145 shares, with a further 70,400 shares held indirectly through the Charles Howard Nye Irrevocable Trust.