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.
This page provides access to U.S. Securities and Exchange Commission filings for Martin Marietta Materials, Inc. (NYSE: MLM), an American-based S&P 500 company and supplier of aggregates, cement, ready mixed concrete, asphalt, and magnesia specialties. Through these filings, investors can review the company’s official disclosures on its building materials and Magnesia Specialties businesses, financing arrangements and strategic plans.
Martin Marietta’s periodic reports on Forms 10-K and 10-Q, referenced in company communications, contain detailed information on its aggregates-led building materials operations, magnesia and dolomitic lime products, geographic footprint across 28 states, Canada and The Bahamas, and risk factors affecting construction-related demand. Current reports on Form 8-K, several of which are summarized here, disclose material events such as quarterly earnings announcements, preliminary financial results, strategic asset exchanges with Quikrete Holdings, Inc., and the acquisition of Premier Magnesia, LLC.
Other 8-K filings describe amendments to the company’s senior unsecured revolving credit facility and trade receivables securitization facility, including extensions of maturity dates and key terms. These documents help investors understand Martin Marietta’s liquidity, capital structure and access to credit. Filings also cover items such as executive appointments and investor presentations related to the company’s Strategic Operating Analysis and Review plans, including SOAR 2030.
On Stock Titan, Martin Marietta’s SEC filings are updated as they are posted to EDGAR. AI-powered summaries can help explain the contents of lengthy reports, highlight changes from prior filings and point out items such as quarterly results, guidance updates and major financing or portfolio transactions, allowing users to navigate MLM’s regulatory history more efficiently.
Martin Marietta Materials’ top executive reported a small sale of company stock. On December 16, 2025, a transaction coded “F” shows 298 shares of common stock were disposed of at $629.49 per share. After this transaction, the reporting person, who is a Director and also Chairman, President and CEO, directly beneficially owns 151,876 common shares and indirectly beneficially owns 70,400 common shares through the Charles Howard Nye Irrevocable Trust.
Martin Marietta Materials reported an insider stock transaction by an executive serving as EVP and CHRO. On 12/16/2025, the insider disposed of 50 shares of common stock, shown with transaction code F at a price of $629.49. After this transaction, the insider beneficially owned 3,473 shares of Martin Marietta Materials common stock directly.
Martin Marietta Materials reported an insider stock transaction by an officer serving as SVP, Controller & CAO. On 12/16/2025, the insider disposed of 32 shares of common stock in a transaction coded "F," which typically indicates shares withheld to cover taxes on an equity award.
The shares were valued at $629.49 each for this transaction. After the withholding, the officer beneficially owns 11,066 shares of Martin Marietta common stock, held in direct ownership.
Martin Marietta Materials reported an insider stock transaction by an executive vice president. On 12/16/2025, the officer disposed of 66 shares of common stock at $629.49 per share, identified as transaction code F.
After this transaction, the executive vice president directly beneficially owned 62,594 shares of Martin Marietta Materials common stock.
Martin Marietta Materials senior vice president and chief information officer reported an insider stock transaction. On 12/01/2025, the officer disposed of 123 shares of common stock at a price of $615.25 per share, as shown with transaction code "F". After this transaction, the officer beneficially owns 4,399 shares, held directly.
Martin Marietta Materials, Inc. executive vice president reported two transactions in company common stock. On 12/01/2025, the reporting person disposed of 420 shares of common stock in a transaction coded "F" at a price of $615.25 per share, leaving 63,148 shares beneficially owned directly. On 12/02/2025, the reporting person disposed of a further 488 shares in a transaction coded "G" at a reported price of $0, resulting in 62,660 shares of common stock beneficially owned directly after the transactions.
Martin Marietta Materials director reports routine stock accrual. A company director of Martin Marietta Materials, Inc. acquired 61 shares of common stock on
The 61 shares were accrued as common stock units under the director stock purchase plan and will be settled in Martin Marietta stock. Settlement can occur in a lump sum or installments over up to 10 years after the individual ceases to be a non-employee director, based on the timing elected under the plan. This filing reflects ongoing director compensation in equity rather than an open-market purchase or sale.
Martin Marietta Materials director reports small stock acquisition
A director of Martin Marietta Materials, Inc. acquired 51 shares of common stock on 11/28/2025 at a price of $623.24 per share, bringing the director’s directly held position to 4,544 shares. The filing notes that common stock units were accrued under the company’s Common Stock Purchase Plan for Directors and are to be settled in stock in a lump sum or in installments over a period that may extend up to 10 years, depending on when the individual ceases to be a non-employee director and on elections made under the plan.
Martin Marietta Materials director reports acquisition of stock units under board plan. A company director acquired 75 common stock units of Martin Marietta Materials, Inc. on 11/28/2025 at a price of $623.24 per share. Following this transaction, the director beneficially owns 8,753 shares directly, plus 2,000 shares held through SJK Holdings and Investments, LLC and 4,900 shares held through the JJ Koraleski and SF Koraleski Co-Trustee Koraleski Living Trust.
The 75 common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors and will be settled in stock in a lump sum or installments over up to 10 years after the individual ceases to be a Non-Employee Director or on a later date elected under the plan.
Martin Marietta Materials (MLM) reported stronger Q3 2025 results. Revenue rose to $1,846 million from $1,642 million, and diluted EPS increased to $6.85 from $5.91. Gross profit improved to $611 million, and earnings from continuing operations were $361 million, aided by higher aggregates volumes and pricing.
The Building Materials business generated $1,715 million of revenue, led by Aggregates $1,458 million. Specialties contributed $131 million. Discontinued operations, tied to the pending QUIKRETE asset exchange, earned $53 million in the quarter. Year to date, operating cash flow was $1,156 million, with capital spending of $602 million and share repurchases of $450 million. Cash and equivalents were $57 million, and total debt was $5,522 million as of September 30, 2025.
Strategically, the company acquired Premier Magnesia, LLC on July 25, 2025, expanding Specialties, and entered a definitive agreement with QUIKRETE on August 3, 2025 to exchange assets, subject to customary closing conditions.