Page 16 - Martin Marietta - 2024 Proxy Statement

PROXY /

Practices Contributing to Board Effectiveness

• Identification of diverse Board candidates
• Meaningful refreshment

• Rotation of Board committee assignments based on experience and expertise
• Robust onboarding
• Tenure and overboarding guidelines
• Our Board refreshment has resulted in a decrease of the Board’s average tenure, with a greater mix of Directors with
long-term knowledge of the Company, its strategy, opportunities and challenges, and those with new perspectives

Director Nominees

INDEPENDENCE GENDER CEO EXPERIENCE DIVERSITY

90% 4 40% 50%

PROXY HIGHLIGHTS BOARD NOMINEES ARE BOARD NOMINEES PUBLIC COMPANY CEO WOMEN OR MINORITIES

BOARD NOMINEES ARE
CURRENT OR FORMER
ARE WOMEN
INDEPENDENT
8.5 65
TENURE AGE
YEARS AVERAGE
AVERAGE YEARS OF
1 AGE
4 4

2 2 2 2
1 1 1
INDEPENDENT
1 2 - 6 7 - 10 11 - 14 15 50 - 60 61 - 65 66 - 70 >70

Board Attendance
In 2023, during their terms of service, all directors attended 100% of the Board meetings and all directors attended at
least 75% of the committee meetings to which they were assigned. All directors then in office attended the May 2023
Annual Meeting.

10 2024 PROXY STATEMENT