Martin Marietta Materials named Christopher W. Samborski executive vice president and chief operating officer, effective May 1, 2026, moving him from his role as president of the company’s West and Specialties divisions.
Samborski had been leading those two divisions, where the company said both delivered “significant growth and success” under his watch. He joined Martin Marietta in 2018 and previously held roles including vice president of strategic finance, procurement and supply chain, vice president of strategic finance, and president of the Specialties division from 2022 to 2025.
With the promotion, Kirk Light takes over leadership of the West and Specialties divisions while continuing as president of the Southwest division.
Chair and CEO Ward Nye said Samborski has been with the company for nearly a decade and has had a “meaningful impact” on Martin Marietta. Samborski said the promotion comes after the company “closed out 2025 by delivering record results across the portfolio” and said he expects to build on that momentum in 2026 and beyond.
Before joining Martin Marietta, Samborski spent close to 10 years in leadership roles at Caterpillar and Johnson & Johnson, and earlier worked at General Electric, including GE’s operations management leadership program. The market has reacted to these announcements by moving the company's shares -0.58% to a price of $615.30. Check out the company's full 8-K submission here.
