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.
Martin Marietta Materials Inc Schedule 13G shows Vanguard Portfolio Management beneficially owned 3,167,718 shares of Common Stock, representing 5.25% of the class as reported for the period ending 03/31/2026. The filing lists 7,274 shares of sole voting power and 3,167,718 shares of sole dispositive power.
The filing states the reported holdings reflect securities managed by Vanguard Portfolio Management LLC and specified Vanguard affiliates and includes shares held by Vanguard funds and managed accounts. The signature block is by Head of Global Fund Administration on 04/29/2026.
Martin Marietta Materials, Inc. appointed Christopher W. Samborski as Executive Vice President and Chief Operating Officer, effective May 1, 2026. Samborski has led the company’s West and Specialties Divisions and previously held strategic finance and supply chain roles after joining Martin Marietta in 2018.
Under an offer letter and amended employment agreements, his base salary will be $775,000 with a target annual incentive of 100% of salary and a target long-term incentive of 260% of salary. He will also receive a one-time $5,000,000 restricted stock unit grant vesting in years six through eight. If terminated without cause or he resigns for good reason, he is eligible for severance equal to three times salary plus target bonus, up to three years of health benefits, and continued equity vesting, alongside additional protections following a change of control.
Martin Marietta Materials, Inc. asks shareholders to elect 10 directors, ratify its auditor, approve executive pay on an advisory basis, and adopt an amended stock-based award plan at the 2026 annual meeting.
In 2025 the company reported $6.2 billion in revenue from continuing operations, record aggregates gross profit of $1.7 billion, and record aggregates gross profit per ton of $8.45. It increased its quarterly dividend by about 5% and, with share repurchases, returned $647 million to shareholders.
The proxy highlights completion of the SOAR 2025 strategy, cumulative Total Shareholder Return of 126% since January 1, 2021 versus 96% for the S&P 500, major portfolio moves including a large asset exchange with QUIKRETE and additional acquisitions, and continued emphasis on safety, sustainability, and board refreshment, including two director retirements and two new nominees.
The Vanguard Group filed Amendment No. 12 to a Schedule 13G/A reporting for Martin Marietta Materials Inc. The filing states beneficial ownership: 0 shares representing 0% of the class and zero voting and dispositive power as of the filing. The amendment explains an internal realignment effective January 12, 2026, under SEC Release No. 34-39538, after which certain Vanguard subsidiaries report holdings separately.