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, Inc. reported a mine safety event at its Kokomo Quarry in Indiana. On February 11, 2026, the Mine Safety and Health Administration issued a section 107(a) order after a miner was seen standing on a crusher platform about 10 feet above ground without being properly anchored, despite wearing fall protection.
The company states that corrective action was taken, no one was injured, and the MSHA order has been terminated. This describes a resolved safety compliance incident rather than an ongoing shutdown or continuing violation.
Martin Marietta Materials reported record 2025 aggregates and specialties results while lapping a large 2024 divestiture gain. Full-year revenues from continuing operations rose to $6.15 billion from $5.66 billion and gross profit increased to $1.89 billion from $1.64 billion. Adjusted EBITDA from continuing operations grew to $2.07 billion from $1.77 billion.
Net earnings from continuing operations attributable to Martin Marietta declined to $990 million from $1.82 billion, reflecting a prior-year nonrecurring divestiture gain rather than weaker operations. Aggregates shipments rose to 198.5 million tons with average selling price up to $23.30 per ton, lifting gross profit per ton by 12%.
Cash from operations reached $1.79 billion, funding $807 million of capital spending and $647 million of dividends and share repurchases. The company outlined 2026 guidance with revenues of $6.42–$6.78 billion, Adjusted EBITDA from continuing operations of $2.16–$2.31 billion, and modest aggregates volume and pricing growth.
Martin Marietta Materials, Inc. reported a change in the expected closing date of its previously announced asset exchange with Quikrete Holdings, Inc. The company had originally anticipated closing the transaction in the fourth quarter of 2025, subject to customary closing conditions. It now expects the asset exchange to close in the first quarter of 2026, still dependent on satisfaction of the remaining customary closing conditions. The update is being provided as a Regulation FD disclosure and is not incorporated into other securities law filings unless specifically referenced.
Martin Marietta Materials, Inc. entered into a new amendment to its existing $800,000,000 five-year senior unsecured revolving credit facility with a bank syndicate led by JPMorgan Chase Bank. The amendment, called Loan Modification No. 4 and Extension Agreement, primarily extends the maturity date of loans under the credit facility to December 21, 2030. This keeps a large committed credit line in place for a longer period, supporting the company’s access to liquidity on an unsecured basis through the new maturity date.
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.