Form 8-K · Current Report · Filed 2026-04-27
Martin Marietta Appoints New Chief Operating Officer
Martin Marietta Materials, Inc. announced on April 27, 2026, the appointment of Christopher W. Samborski as its new Executive Vice President and Chief Operating Officer, effective May 1, 2026. Mr. Samborski, who has been with the company since 2018, previously served as President of the West and Specialties Divisions. His new role will involve leading the company's overall operations and strategic direction. As part of his compensation, Mr. Samborski will receive a base salary of $775,000, a target annual incentive award of 100% of base salary, a target long-term incentive award of 260% of base salary, and a one-time grant of restricted stock units with a grant date value of $5,000,000. The appointment follows the company's record results in 2025 and is expected to build on this momentum.
- Filer
- Martin Marietta Materials Inc. MLM · NYSE
- Filed
- Accession
- 0000950157-26-000549
- CIK
- 0000916076
- Signal
- Medium impactBasic Materials
- Source
- Official filing on sec.gov ↗
Items reported
Reported Item
Market reaction
Close before filing
$615.30
Next session
-0.2%
Since filing
-14.7%
Latest close
$525.14
What happened, not what will happen — closing prices around the filing date.
Precedent
Previous filings from MLM reporting the same item, with the next session's move:
Insider tape
Within 45 days of this filing, MLM insiders reported 12 Form 4 transactions — net buying of $110K.
About Martin Marietta Materials Inc.
Martin Marietta Materials Inc. is a leading supplier of building materials, primarily aggregates like crushed stone, sand, and gravel, as well as cement and concrete products in the United States. Its primary purpose is to support the construction industry by providing essential raw materials used in infrastructure projects, commercial and residential construction, and the development of public works like roads, bridges, and airports. Martin Marietta Materials is heavily involved in sectors such as construction, transportation, and energy, where its products are critical for foundational building and maintenance. The company plays a significant role in regional and national economic development, given the essential nature of its offerings in the construction and infrastructure sectors. With a broad geographic footprint and a diverse product line, Martin Marietta Materials holds a strategic position within the market, contributing to the durability and growth of urban and rural communities alike.
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