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 (MLM) announced financial results for the third quarter ended September 30, 2025. A press release dated November 4, 2025 is furnished as Exhibit 99.1 and incorporated by reference.
The company will host an online webcast of its Q3 2025 earnings conference call on November 4, 2025 at 10:00 a.m. Eastern Time, accessible by dialing +1 (646) 307-1963 with conference ID 6474847. An online replay will be available approximately two hours after the live broadcast and continue for one year via the company’s website.
Additional information about the quarter and the company’s use of non-GAAP financial measures is available at www.martinmarietta.com under Investors > Reports & Filings > Non-GAAP Measures.
Martin Marietta Materials, Inc. reported a material event: the Seventeenth Amendment to the Credit Agreement, dated September 16, 2025, involving Martin Marietta Funding LLC as borrower, Martin Marietta Materials, Inc. as servicer, and Truist Bank (successor to SunTrust Bank) as lender and administrative agent. A conformed copy of the amended Credit Agreement is attached as Exhibit A. The filing identifies the amendment as a material event but does not disclose the amendment’s specific financial or covenant terms within the provided excerpt.
Martin Marietta Materials, Inc. filed an Form 8-K reporting the submission of its Capital Markets Day 2025 presentation dated
The filing does not include financial tables, earnings data, or new material transactions; it serves to make the investor presentation publicly available through the SEC filing system.
David C. Wajsgras, a director of Martin Marietta Materials, Inc. (MLM), acquired non-derivative common stock units under the company's director stock purchase plan on 08/29/2025. The Form 4 shows an acquisition transaction tied to the Plan resulting in 4,529 shares (or share units) beneficially owned following the transaction. The reported price column shows $616.4, and the transaction is labeled with code A indicating acquisition. The filing explains these units were accrued under the Martin Marietta Materials Common Stock Purchase Plan for Directors and will be settled in stock in a lump sum or installments (up to 10 years) according to the director's election or termination timing.
Pike Thomas, a director of Martin Marietta Materials, Inc. (MLM), reported a transaction dated 08/29/2025 in which 51 common stock units were acquired under the company’s Common Stock Purchase Plan for Directors. The filing shows a price of $616.4 and reports 4,493 shares beneficially owned following the transaction, held directly. The director units are accrued under the director stock purchase plan and will be settled in shares either in a lump sum or in installments (up to 10 years) following the director’s cessation of service or per the director’s election, as described in the filing. The Form 4 was signed by an attorney-in-fact on 09/02/2025.
John J. Koraleski, a director of Martin Marietta Materials, acquired 76 common stock units on 08/29/2025 under the company’s Common Stock Purchase Plan for Directors. After the reported transaction he directly beneficially owned 8,678 shares. He also holds 2,000 shares indirectly through SJK HOLDINGS and INVESTMENTS, LLC and 4,900 shares indirectly through the KORALESKI LIVING TRUST. The units were accrued under the director plan and will be settled in stock either in a lump sum or installments up to 10 years following termination or per the director’s election. The Form 4 was signed by attorney-in-fact Bradley D. Kohn on 09/02/2025.
Martin Marietta Materials (MLM) Form 3: Jason Paul Flynn, identified as Senior Vice President and Chief Information Officer, filed an initial Section 16 beneficial ownership report disclosing direct ownership of 4,522 shares of Martin Marietta common stock. The Form 3 lists the transaction date requiring the filing as 08/14/2025 and the filing signature executed by counsel on 08/25/2025. The report is a routine officer disclosure with no derivatives or other holdings reported.
Laree E. Perez, a director of Martin Marietta Materials (MLM), reported a sale of 1,038 shares of common stock on 08/08/2025 at a reported price of $613.32, leaving beneficial ownership of 15,417 shares. The disclosure is a Form 4 insider transaction showing a director-initiated sale and the remaining shareholdings after the trade.
Martin Marietta Materials, Inc. (MLM) filed a Form 144 reporting a proposed sale of 1,038 shares of common stock through Fidelity Investments, with an aggregate market value of $623,111.40. The sale is scheduled to occur on or about 08/08/2025 on the NYSE. The 1,038 shares were acquired as distributions of restricted stock awards across 2020–2025 (140 in 2020, 194 in 2021, 222 in 2022, 181 in 2023, 147 in 2024, and 154 in 2025).
The filing shows 60,306,003 shares outstanding, so the proposed sale represents approximately 0.0017% of outstanding shares. The filer reports no securities sold in the past three months and includes the standard representation that the seller is not aware of undisclosed material adverse information about the issuer.