01—Abstract
Summary
Summary of the 8-K filed April 27, 2026. Cited figures are marked; the original filing is the authoritative source.
Martin Marietta Materials, Inc. (NYSE: MLM) announced on April 27, 2026 that it has appointed Christopher W.
Samborski as Executive Vice President and Chief Operating Officer, effective May 1, 2026. Mr. Samborski, age 45, joined the Company in August 2018 and currently serves as President of the West and Specialties Divisions. The filing states that Kirk Light has assumed leadership of the West and Specialties Divisions while also retaining his duties as President of the Southwest Division.
The filing details Mr. Samborski's compensation under his new role. Per the Offer Letter, his base salary will be $775,000,a with a target annual incentive of 100% of base salary and a target long-term incentive of 260% of base salary. He will also receive a one-time restricted stock unit grant with a grant-date value of $5,000,000, vesting ratably on the sixth, seventh and eighth anniversaries of the grant date.
Under his amended Employment Agreement, a termination without cause or for good reason triggers severance equal to three times the sum of base salary and target bonus, plus up to three years of medical and dental benefits and continued equity vesting. The Employment Protection Agreement provides change-of-control severance of three times annual compensation and 36 months of benefits.
The press release attached as Exhibit 99.1 quotes CEO Ward Nye praising Mr. Samborski's leadership and describes the appointment as coming during a period of strong performance, noting the Company closed 2025 with record results across its portfolio. The filing itself contains no financial results for the period beyond that statement.
02—Key points
Key Highlights
- Christopher W. Samborski, age 45, appointed Executive Vice President and Chief Operating Officer, effective May 1, 2026
- Mr. Samborski joined the Company in August 2018 and previously served as President of the West and Specialties Divisions
- Offer Letter sets base salary at $775,000, target annual incentive at 100% of base salary, and target long-term incentive at 260% of base salary
- One-time RSU grant with a grant-date value of $5,000,000, vesting on the sixth, seventh and eighth anniversaries of the grant date
- Employment Agreement provides severance of three times the sum of base salary and target bonus for termination without cause or for good reason
- Employment Protection Agreement provides change-of-control severance of three times annual compensation and 36 months of benefit continuation
- Kirk Light assumes leadership of the West and Specialties Divisions while retaining his role as President of the Southwest Division
03—Questions
Frequently Asked Questions
Who is the new Chief Operating Officer of Martin Marietta Materials and when does the appointment take effect?
Christopher W. Samborski has been appointed Executive Vice President and Chief Operating Officer, effective May 1, 2026. He currently serves as President of the West and Specialties Divisions and joined the Company in August 2018.
What compensation will the new COO receive?
Under the Offer Letter, Mr. Samborski's base salary will be $775,000, with a target annual incentive of 100% of base salary and a target long-term incentive of 260% of base salary. He will also receive a one-time RSU grant with a grant-date value of $5,000,000, vesting ratably on the sixth, seventh and eighth anniversaries of the grant date.
What severance protections does the new COO have?
Under the amended Employment Agreement, a termination by the Company without cause or by Mr. Samborski for good reason entitles him to severance equal to three times the sum of base salary and target bonus, up to three years of medical and dental benefits, and continued vesting of outstanding equity awards. The Employment Protection Agreement provides change-of-control severance equal to three times annual compensation and 36 months of benefit continuation.
Who will lead the West and Specialties Divisions after this change?
Kirk Light has assumed leadership of the West and Specialties Divisions while also retaining his historic duties as President of the Southwest Division, according to the press release attached as Exhibit 99.1.
What did the company say about its recent performance?
The press release quotes Mr. Samborski stating that Martin Marietta closed out 2025 by delivering record results across the portfolio. CEO Ward Nye described the appointment as coming during a period of strong performance and growth for the business.
04—Continue